ahridirectory.orgUser Guide for Carrier models including: 48VLUK, 48VLUK Ultra Low NOx Comfort Air Conditioner and Gas Furnace System, Ultra Low NOx Comfort Air Conditioner and Gas Furnace System, NOx Comfort Air Conditioner and Gas Furnace System, Comfort Air Conditioner and Gas Furnace System, Air Conditioner and Gas Furnace System, Gas Furnace System, Furnace System
25 dic 2022 — Features/Benefits. One-piece heating and cooling units with low sound levels, easy installation, low maintenance, and dependable performance.
the room thermostat calls for heating. Standard units are furnished with natural gas controls. Ultra Low NOx units meet California air quality district ...
Comfort™ 13.4 SEER2 Packaged Rooftop Gas Heat / Electric Cooling, Single Stage, Ultra Low NOx
File Info : application/pdf, 34 Pages, 2.69MB
DocumentDocument48VLUK Ultra Low NOx: Product Data 48VLUK Ultra Low NOx ComfortTM13.4 SEER2 Single-Packaged Air Conditioner and Gas Furnace System with Puron® (R-410A) Refrigerant Single Phase 2-5 Nominal Tons (Sizes 24-60) Three Phase 3-5 Nominal Tons (Sizes 36-60) Product Data Fig. 1 Unit 48VL A09033 Single-Packaged Products with Energy-Saving Features and Puron® R-410A refrigerant. · 13.4 SEER2 · 10.6 EER2 · 81.0% AFUE (Single phase and three phase models) · ECM Blower Motor-Standard · Direct Spark Ignition · Low Sound Levels · Dehumidification Feature · Louvered Condenser Coil Guard-Standard Features/Benefits One-piece heating and cooling units with low sound levels, easy installation, low maintenance, and dependable performance. Puron is Carrier's unique refrigerant designed to be environmentally balanced. Puron is an HFC refrigerant which does not contain chlorine that can harm the ozone layer. The most important advantage of Puron refrigerant is that it has not been banned in future air conditioning systems as the traditional refrigerant R-22 has been. Puron refrigerant is in service in millions of systems proving highly reliable and is non-ozone depleting. Easy Installation Factory-assembled package is a compact, fully self-contained, combination gas heating/electric cooling unit that is prewired, pre-piped, and pre-charged for minimum installation expense. These units are available in a variety of standard and optional heating/ cooling size combinations with voltage options to meet residential and light commercial requirements. Units are lightweight and install easily on a rooftop or at ground level. The high tech composite base eliminates rust problems associated with ground level applications. Innovative Unit Base Design On the inside a high-tech composite material will not rust and incorporates a sloped drain pan which improves drainage and helps inhibit mold, algae and bacterial growth. On the outside metal base rails provide added stability as well as easier handling and rigging. Convertible Duct Configuration Unit is designed for use in either downflow or horizontal applications. Each unit is converted from horizontal to downflow and includes two horizontal duct covers. Downflow operation is provided in the field to allow vertical ductwork connections. The basepan seals on the bottom openings to ensure a positive seal cin the vertical airflow mode. Efficient operation high-efficiency design offers SEER2 (Seasonal Energy Efficiency Ratios) of 13.4, 10.6 EER2, and AFUE (Annual Fuel Utilization Efficiency) ratings of 81.0%. Energy-saving, direct spark ignition saves gas by operating only when the room thermostat calls for heating. Standard units are furnished with natural gas controls. Ultra Low NOx units meet California air quality district standards requiring NOx emissions no more than 14ng/J. Durable, Dependable Components Turbo-tubularTM heat exchangers are constructed of stainless steel for corrosion resistance and optimum heat transfer for improved efficiency. The tubular design permits hot gases to make multiple passes across the path of the supply air. In addition, dimples located on the heat exchanger walls force the hot gases to stay in close contact with the walls, improving heat transfer. ECM Blower Motor is standard on all models. Direct-drive PSC (Permanent Split Capacitor) condenser-fan motors are designed to help reduce energy consumption and provide for cooing operation down to 40°F (4.4°C) outdoor temperature. Motormaster® II low ambient kit is available as a field-installed accessory. Thermostat Controls Time Guard® II anti-short cycle protection circuitry. If a non-corporate thermostat without anti-short cycle protection is used the Time Guard II field-installed anti-short cycle kit is recommended. Refrigerant system is designed to provide dependability. Liquid filter driers are used to promote clean, unrestricted operation. Each unit leaves the factory with a full refrigerant charge. Refrigerant service connections make checking operating pressures easier. High pressure switch provides added reliability for the compressor. Indoor and outdoor coils are computer-designed for optimum heat transfer and efficiency. The indoor coil is fabricated from aluminum tube and aluminum fins and is located inside the unit for protection against damage. The outdoor coil is internally mounted on the top tier of the unit. Low sound ratings ensure a quiet indoor and outdoor environment with sound ratings as low as 70.7 dBA. Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 1 48VLUK Ultra Low NOx: Product Data Easy to service cabinets provide easy 3-panel accessibility to serviceable components during maintenance and installation. The basepan with integrated drain pan provides easy ground level` installation with mounting pad. A nesting feature ensures a positive basepan to roof curb seal when the unit is roof mounted. A convenient 3/4-in. (19.05 mm) wide perimeter flange makes frame mounting on a rooftop easy. Standard horizontal metal duct covers with insulation come with the unit and cover the horizontal duct openings. These can be left in place if the units are converted to downflow. Table of Contents Features/Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Model Number Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 AHRI Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Application Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Electrical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Connection Wiring Schematic 208/230-1-60 . . . . . . . . . . . . . . . . . . . . 27 Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Guide Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Integrated Gas Control (IGC) board provides safe and efficient control of heating and simplifies trouble-shooting through its built-in diagnostic function. Cabinets are constructed of heavy duty, phosphated, zinc-coated prepainted steel capable of withstanding 500 hours in salt spray. Interior surfaces of the evaporator/heat exchanger compartment are insulated with cleanable semi-rigid insulation board, which keeps the conditioned air from being affected by the outdoor ambient temperature and provides improved indoor air quality. (Conforms to American Society of Heating, Refrigeration and Air Conditioning Engineers 62.2.) The sloped drain pan minimizes standing water in the drain. An external drain is provided. Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 2 48VLUK Ultra Low NOx: Product Data Model Number Nomenclature Use of the AHRI Certified TM Mark indicates a manufacturer's participation in the program For verification of certification for individual products, go to www.ahridirectory.org. Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 3 48VLUK Ultra Low NOx: Product Data AHRI* Capacities Cooling Capacities and Efficiencies UNIT SIZE 24 30 36 42 48 60 NOMINAL TONS 2 2.5 3 3.5 4 5 STANDARD CFM 750 950 1150 1350 1600 1750 COOLING CAPACITY 22800 28000 33800 39000 47000 EER2 10.6 10.6 10.6 10.6 10.6 10.6 *. Air Conditioning, Heating & Refrigeration Institute. . Rated in accordance with U.S. Government DOE Department of Energy) test procedures and/or AHRI Standards 210/240. . At "A" conditions-80°F (26.7°C) indoor db/67°F (19.4°C) indoor wb & 95°F (35°C) outdoor db. **. Rated in accordance with AHRI Standard 270. Notes: 1. Ratings are net values, reflecting the effects of circulating fan heat. Ratings are based on: Cooling Standard: 80°F (26.7°C) db, 67°F wb (19.4°C) indoor entering-air temperature and 95°F db (35°C) outdoor entering-air temperature. 2. Before purchasing this appliance, read important energy cost and efficiency information available from your retailer. LEGEND dB-Sound Levels (decibels) db--Dry Bulb SEER--Seasonal Energy Efficiency Ratio wb--Wet Bulb COP-Coefficient of Performance Gas Heating Capacities and Efficiencies, Single and Three Phase Models Unit Size Heating Input (Btuh) Output Capacity (Btuh) Temperature Rise Range °F (°C) 24040 30040 45,000 37,000 25-55 (14-31) 24060 30060 36060 42060 60,000 49,000 25-55 (14-31) 42090 48090 60090 89,000 73,000 35-65 (19-36) LEGEND AFUE--Annual Fuel Utilization Efficiency NOTE: Before purchasing this appliance, read important energy cost and efficiency information available from your retailer. A-Weighted Sound Power Level UNIT SIZE STANDARD RATING (dBA) 125 TYPICAL OCTAVE BAND SPECTRUM (dBA without tone adjustment) 250 500 1000 2000 4000 24 70.7 59.4 58.5 58.3 60.4 56.7 52.6 30 73.4 53.8 59.9 62.3 64.0 61.4 53.8 36 74.8 67.1 60.3 64.3 63.8 61.9 57.1 42 74.9 62.5 63.1 63.7 65.5 61.5 57.5 48 75.4 64.1 61.0 65.5 63.7 61.8 60.1 60 NOTE: Tested in compliance with AHRI 270 but not listed with AHRI. SEER2** 13.4 13.4 13.4 13.4 13.4 13.4 AFUE (%) 81.0 81.0 81.0 8000 46.9 45.6 50.8 53.5 56.1 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 4 48VLUK Ultra Low NOx: Product Data COIL FILTE R ECONOMIZER ECONOMIZER SIDE VIEW COIL CAULK BOTTOM CORNER OF ECONOMIZER ON EACH SIDE FI LTER ECONOMIZER FLANGE ON BASE BASE DETAIL Vertical Economizer FILTER RACK BEND FLANGE AT 90° -SCREW TO DIVIDER WITH 1-IN. (25 mm)SCREW TOP FILTER RACK EV APORATOR COIL BOTTOM FILTER RACK Horizontal Economizer MANUAL OUTSIDE AIR DAMPER REPLACEMENT PANEL MANUAL OUTSIDE AIR HOOD DAMPER BLADE Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 5 A09375 48VLUK Ultra Low NOx: Product Data Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 6 Physical Data UNIT SIZE NOMINAL CAPACITY (ton) SHIPPING WEIGHT lb. SHIPPING WEIGHT (kg) COMPRESSOR / QUANTITY REFRIGERANT (R-410A) Quantity lb. Quantity (kg) REFRIGERANT METERING DEVICE ORIFICE ID in. / mm OUTDOOR COIL Rows...Fins/in. Face Area (sq ft) OUTDOOR FAN Nominal CFM Diameter in. Diameter (mm) Motor Hp (Rpm) INDOOR COIL Rows...Fins/in. Face Area (sq ft) INDOOR BLOWER Nominal Cooling Airflow (CFM) Size in. Size (mm.) Motor HP (RPM) FURNACE SECTION* Burner Orifice No. (Qty...Drill Size) 1 & 3 Phase Ultra Low NOx Natural Gas (Factory Installed) HIGH-PRESSURE SWITCH (psig) Cut-out Reset (Auto) LOSS-OF-CHARGE / LOW-PRESSURE SWITCH (Liquid Line) (psig) cut-out Reset (auto) 24040 2 339 154 6.4 2.9 .059 / 1.5 1..21 11.9 2500 24 609.6 1/12 (810) 3...17 3.7 750 10x10 254x254 1/2 (1050) 1...0.125" size RETURN-AIR FILTERS Throwaway Size in. (mm) 24060 2 339 154 30040 2-1/2 348 158 30060 36060 2-1/2 3 348 394 158 179 Scroll / 1 42060 3-1/2 428 194 42090 3-1/2 428 194 48090 4 481 218 6.4 2.9 .059 / 1.5 6.0 2.7 .063 / 1.60 6.0 5.75 2.7 2.6 Orifice .063 / 1.60 .070 / 1.78 6.0 6.0 2.7 2.7 .073 / 1.85 .073 /1.85 9.0 4.1 .080 / 2.03 1...21 11.9 1...21 13.6 1...21 13.6 1...21 13.6 1...21 13.6 1...21 13.6 1...21 23.3 2500 24 609.6 1/12 (810) 3200 24 609.6 1/5 (810) 3200 24 609.6 1/5 (810) 3500 26 660.4 1/2 (810) 3500 26 660.4 3/4 (810 3500 26 660.4 3/4 (810) 3500 26 660.4 1/5 (810) 3...17 3.7 3...17 3.7 3...17 3.7 2...17 5.6 3...17 4.7 3...17 4.7 3...17 5.6 750 10x10 254x254 1/2 (1050) 950 10x10 254x254 1/2 (1050) 950 10x10 254x254 1/2 (1050) 1150 11x10 279.4x254 3/4 (1000) 1350 11x10 279.4x254 1/2 (1050) 1350 11x10 279.4x254 1/2 (1050) 1600 11x10 279.4x254 1.0 (1075) 1...#28 1...0.125" size 2 each 20x12x1 508x305x25 1...#28 1...#28 650 +/- 15 420 +/- 25 NA 1 each 24x16x1 610x406x25 24x18x1 610x457x25 1...#28 1...#18 1...#18 1 each 24x14x1 610x356x25 24x16x1 610x406x25 1 each 24x16x1 610x406x25 24x18x1 610x457x25 60090 *. Based on altitude of 0 to 2000 ft (0-610 m). . Required filter sizes shown are based on the larger of the AHRI (Air Conditioning Heating and Refrigeration Institute) rated cooling airflow or the heating airflow velocity of 300 to 350 ft/minute for throwaway type. Air filter pressure drop for non-standard filters must not exceed 0.08 IN. W.C. . If using accessory filter rack refer to the filter rack installation instructions for correct filter sizes and quantity NA - Not Available 48VLUK Ultra Low NOx: Product Data Unit Dimensions 24-30 A221498 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 7 48VLUK Ultra Low NOx: Product Data Unit Dimensions 36-60 A221499 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 8 48VLUK Ultra Low NOx: Product Data SMALL/COMMON CURB SUPPLY AIR SMALL BASE UNIT RETURN AIR LARGE BASE UNIT UNIT PLACEMENT ON COMMON CURB LARGE CURB SMALL OR LARGE BASE UNIT Accessory Dimensions A180216 Unit Size Catalog Number A IN. (mm) B (small / common base) IN. (mm)* B (large base) IN. (mm)* C IN. (mm) D IN. (mm) E IN. (mm) F IN. (mm) G IN. (mm) H IN. (mm) Small or Large CPRFCURB011B00 14 (356) Large CPRFCURB013B00 14 (356) 10 (254) 14 (356) 14 (356) 16 (406) 47.8 (1214) 32.4 (822) 43.9 (1116) 30.6 (778) 2.7 (69) 42.2 (1072) 46.1 (1170) * Part Number CPRCURB011B00 can be used on both small and large basepan units. The cross supports must be located based on whether the unit is a small basepan or a large basepan. NOTES: 1. Roof curb must be set up for unit being installed. 2. Seal strip must be applied, as required, to unit being installed. 3. Roof curb is made of 16-gauge steel. 4. Attach ductwork to curb (flanges of duct rest on curb). 5. Insulated panels: 1-in. (25.4 mm) thick fiberglass 1 lb. density. Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 9 48VLUK Ultra Low NOx: Product Data Selection Procedure (With Example) DETERMINE COOLING AND HEATING REQUIREMENTS AT DESIGN CONDITIONS: Given: Required Cooling Capacity (TC) .......................................46,000 Btuh Sensible Heat Capacity (SHC)...........................................34,000 Btuh Required Heating Capacity ................................................72,000 Btuh Condenser Entering Air Temperature ............................... 95°F (35°C) Indoor-Air Temperature ..................80°F (27°C) edb 67°F (19°C) ewb Evaporator Air Quantity....................................................... 1600 CFM External Static Pressure ................................................ 0.440 IN. W.C. Electrical Characteristics ........................................................ 208-1-60 SELECT UNIT BASED ON REQUIRED COOLING CAPACITY Enter Net Cooling Capacities table at condenser entering temperature of 95°F (35°C). Unit 48 at 1600 CFM and 67°F (19°C) ewb (entering wet bulb) will provide a total capacity of 47,000 Btuh and a SHC of 35,000 Btuh. Calculate SHC correction, if required, using Note 4 under Cooling Capacities tables. SELECT ELECTRIC HEAT In the Gas Heating Capacities and Efficiencies table, note that the 48090 unit will provide 73,000 Btuh with an input of 89,000 Btuh. DETERMINE FAN SPEED AND POWER REQUIREMENTS AT DESIGN CONDITIONS. Before entering the air delivery tables, calculate the total static pressure required. From the given example, the Wet Coil Pressure Drop Table, and the Filter Pressure Drop Table: External Static Pressure 0.30 IN. W.C Filter 0.06 IN. W.C Wet Coil Pressure Drop 0.07 IN. W.C Total Static Pressure 0.43 IN. W.C At 0.43 IN. W.C. ESP (external static pressure) and MED speed the motor delivers between 1664 CFM and 1627 cfm. Interpolation estimates 1653 CFM at .43 IN. W.C. Thus, MED delivers CFM needed. SELECT UNIT THAT CORRESPONDS TO POWER SOURCE AVAILABLE. The Electrical Data Table shows that the unit is designed to operate at 208-1-60. Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 10 48VLUK Ultra Low NOx: Product Data Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 11 Performance Data 24 Size Evaporator Air CFM EWB °F(°C) 75 (23.9) Capacity MBtuh Total Sens Total Sys KW** 57 (13.8) 23.62 23.62 1.55 62 (16.6) 24.47 21.38 1.56 700 63* (17.2) 24.99 17.43 1.56 67 (19.4) 27.02 18.13 1.55 72 (22.2) 29.59 14.70 1.55 57 (13.8) 24.74 24.74 1.57 62 (16.6) 25.14 23.06 1.57 800 63* (17.2) 25.59 18.60 1.57 67 (19.4) 27.63 19.36 1.56 72 (22.2) 30.16 15.42 1.56 57 (13.8) 25.69 25.69 1.58 62 (16.6) 25.74 25.74 1.58 900 63* (17.2) 26.07 19.72 1.58 67 (19.4) 28.08 20.52 1.58 72 (22.2) 30.58 16.10 1.58 85 (29.4) Capacity MBtuh Total Sens Total Sys KW** 21.90 21.90 1.75 22.45 20.24 1.75 22.88 16.39 1.76 24.79 17.09 1.76 27.20 13.77 1.76 22.92 22.92 1.77 23.07 21.80 1.78 23.43 17.53 1.77 25.32 18.28 1.77 27.69 14.48 1.77 23.77 23.77 1.79 23.81 23.81 1.79 23.84 18.62 1.79 25.72 19.42 1.79 28.07 15.15 1.79 Condenser Entering Air Temperatures °F (°C) 95 (35) 105 (40.6) Capacity MBtuh Total Sens Total Sys KW** Capacity MBtuh Total Sens Total Sys KW** 20.07 20.07 1.95 17.88 17.88 2.14 20.32 19.02 1.96 17.92 17.92 2.14 20.71 15.32 1.96 18.05 14.06 2.15 22.51 16.03 1.98 19.92 14.86 2.20 24.84 12.86 1.99 22.48 11.95 2.24 21.02 21.02 1.99 18.78 18.78 2.19 21.05 21.05 1.99 18.81 18.81 2.19 21.18 16.43 1.99 18.51 15.14 2.18 23.00 17.20 2.00 20.41 16.03 2.24 25.27 13.55 2.01 22.88 12.64 2.26 21.80 21.80 2.01 19.55 19.55 2.23 21.84 21.84 2.01 19.58 19.58 2.23 21.55 17.49 2.01 18.84 16.17 2.20 23.37 18.31 2.02 20.82 17.17 2.26 25.58 14.21 2.02 23.17 13.29 2.28 115 (46.1) Capacity MBtuh Total Sens Total Sys KW** 15.87 15.87 2.38 15.90 15.90 2.38 15.56 12.87 2.36 17.28 13.67 2.42 19.68 10.89 2.51 16.65 16.65 2.42 16.68 16.68 2.42 15.93 13.90 2.39 17.67 14.78 2.45 20.12 11.62 2.53 17.32 17.32 2.46 17.35 17.35 2.46 16.24 14.87 2.42 17.98 15.84 2.48 20.45 12.30 2.56 125 (51.7) Capacity MBtuh Total Sens Total Sys KW** 14.01 14.01 2.64 14.03 14.03 2.64 13.28 11.77 2.61 14.91 12.59 2.67 17.14 9.92 2.77 14.70 14.70 2.69 14.72 14.72 2.69 13.61 12.73 2.64 15.25 13.64 2.71 17.47 10.60 2.80 15.29 15.29 2.73 15.31 15.31 2.73 13.92 13.92 2.67 15.54 14.63 2.74 17.73 11.25 2.83 48VLUK Ultra Low NOx: Product Data Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 12 Performance Data 30 Size Evaporator Air CFM EWB °F(°C) 75 (23.9) Capacity MBtuh Total Sens Total Sys KW** Condenser Entering Air Tempeatures °F (°C) 85 (29.4) 95 (35) 105 (40.6) Capacity MBtuh Total Sens Total Sys KW** Capacity MBtuh Total Sens Total Sys KW** Capacity MBtuh Total Sens Total Sys KW** 115 (46.1) Capacity MBtuh Total Sens Total Sys KW** 57 (13.9) 27.39 27.39 1.98 26.29 26.29 2.20 25.01 25.01 2.44 23.52 23.52 2.69 21.57 21.57 2.94 62 (16.7) 28.22 26.10 1.99 26.84 25.48 2.20 25.28 24.73 2.45 23.38 23.38 2.68 21.59 21.59 2.94 875 63* (17.2) 28.70 21.18 1.99 27.33 20.58 2.20 25.77 19.89 2.45 23.74 19.00 2.69 21.18 17.90 2.93 67 (19.4) 30.96 21.97 2.00 29.59 21.44 2.22 28.06 20.82 2.46 26.21 20.08 2.74 23.74 19.09 3.02 71 (21.7) 33.22 18.60 2.02 31.86 18.10 2.24 30.33 17.53 2.48 28.62 16.90 2.76 26.55 16.13 3.08 57 (13.9) 28.61 28.61 2.01 27.47 27.47 2.22 26.20 26.20 2.47 24.68 24.68 2.75 22.66 22.66 3.00 62 (16.7) 28.93 28.00 2.01 27.59 27.35 2.23 26.34 26.18 2.47 24.72 24.72 2.75 22.70 22.70 3.00 1000 63* (17.2) 29.30 22.46 2.01 27.91 21.89 2.23 26.32 21.22 2.47 24.35 20.38 2.73 21.72 19.26 2.97 67 (19.4) 31.55 23.29 2.03 30.16 22.79 2.24 28.60 22.20 2.49 26.76 21.49 2.77 24.30 20.55 3.06 71 (21.7) 33.80 19.48 2.05 32.41 19.01 2.26 30.84 18.46 2.51 29.10 17.84 2.79 27.04 17.11 3.11 57 (13.9) 29.58 29.58 2.03 28.44 28.44 2.25 27.15 27.15 2.50 25.62 25.62 2.78 23.61 23.61 3.06 62 (16.7) 29.56 29.56 2.03 28.82 27.88 2.25 27.19 27.19 2.50 25.66 25.66 2.78 23.65 23.65 3.06 1125 63* (17.2) 29.76 23.65 2.04 28.33 23.11 2.25 26.76 22.46 2.50 24.80 21.66 2.77 22.16 20.54 3.01 67 (19.4) 31.99 24.51 2.05 30.58 24.06 2.27 29.00 23.49 2.51 27.19 22.82 2.79 24.77 21.94 3.11 71 (21.7) 34.23 20.29 2.07 32.81 19.85 2.29 31.24 19.31 2.54 29.45 18.71 2.82 27.39 18.01 3.13 48VLUK Ultra Low NOx: Product Data Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 13 Performance Data 36 Size Evaporator Air CFM EWB °F(°C) 75 (23.9) Capacity MBtuh Total Sens Total Sys KW** 57 (13.8) 34.58 34.58 2.40 62 (16.6) 36.10 31.44 2.41 1000 63* (17.2) 36.53 25.60 2.42 67 (19.4) 39.44 26.70 2.43 72 (22.2) 43.05 21.95 2.46 57 (13.8) 36.19 36.19 2.46 62 (16.6) 37.15 33.84 2.46 1150 63* (17.2) 37.52 27.28 2.47 67 (19.4) 40.47 28.51 2.48 72 (22.2) 44.12 23.06 2.51 57 (13.8) 37.56 37.56 2.51 62 (16.6) 38.06 35.99 2.51 1300 63* (17.2) 38.23 28.87 2.51 67 (19.4) 41.26 30.24 2.53 72 (22.2) 44.94 24.09 2.56 85 (29.4) Capacity MBtuh Total Sens Total Sys KW** 32.46 32.46 2.66 33.65 29.92 2.67 34.01 24.25 2.67 36.74 25.34 2.69 40.11 20.71 2.72 33.98 33.98 2.71 34.60 32.19 2.72 34.89 25.86 2.72 37.67 27.07 2.74 41.04 21.76 2.77 35.24 35.24 2.77 35.47 34.14 2.77 35.57 27.41 2.77 38.33 28.73 2.79 41.77 22.75 2.82 Condenser Entering Air Temperatures °F (°C) 95 (35) 105 (40.6) Capacity MBtuh Total Sens Total Sys KW** Capacity MBtuh Total Sens Total Sys KW** 30.31 30.31 2.94 28.08 28.08 3.27 31.16 28.38 2.95 28.62 26.75 3.27 31.48 22.90 2.95 28.86 21.49 3.28 34.00 23.95 2.97 31.20 22.53 3.30 37.12 19.45 3.00 34.07 18.16 3.32 31.67 31.67 3.00 29.30 29.30 3.32 32.03 30.46 3.00 29.42 29.41 3.32 32.23 24.43 3.01 29.50 22.95 3.33 34.80 25.60 3.03 31.88 24.11 3.35 37.93 20.44 3.06 34.77 19.10 3.38 32.79 32.79 3.05 30.30 30.30 3.38 32.84 32.84 3.05 30.34 30.34 3.38 32.80 25.90 3.05 29.99 24.35 3.38 35.38 27.20 3.08 32.36 25.62 3.40 38.55 21.38 3.11 35.28 19.98 3.43 115 (46.1) Capacity MBtuh Total Sens Total Sys KW** 25.78 25.78 3.65 26.05 25.03 3.65 26.20 20.05 3.65 28.34 21.07 3.67 30.95 16.85 3.69 26.84 26.84 3.70 26.90 26.90 3.70 26.72 21.43 3.70 28.91 22.56 3.72 31.54 17.73 3.74 27.71 27.71 3.75 27.75 27.75 3.75 27.14 22.76 3.75 29.31 24.01 3.76 31.96 18.56 3.79 125 (51.7) Capacity MBtuh Total Sens Total Sys KW** 23.44 23.44 4.08 23.48 23.48 4.08 23.49 18.58 4.08 25.45 19.58 4.09 27.81 15.51 4.11 24.34 24.34 4.12 24.38 24.38 4.12 23.92 19.88 4.12 25.90 20.99 4.14 28.28 16.32 4.16 25.08 25.08 4.17 25.12 25.12 4.17 24.25 21.11 4.17 26.22 22.34 4.18 28.62 17.10 4.21 48VLUK Ultra Low NOx: Product Data Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 14 Performance Data 42 Size Evaporator Air 75 (23.9) 85 (29.4) Condenser Entering Air Temperatures °F (°C) 95 (35) 105 (40.6) 115 (46.1) 125 (51.7) CFM 1175 1350 1525 EWB °F(°C) 57 (13.8) 62 (16.6) 63* (17.2) 67 (19.4) 72 (22.2) 57 (13.8) 62 (16.6) 63* (17.2) 67 (19.4) 72 (22.2) 57 (13.8) 62 (16.6) 63* (17.2) 67 (19.4) 72 (22.2) Capacity MBtuh Total Sens 38.66 38.66 40.29 35.16 41.08 28.70 44.34 29.79 48.52 24.17 40.50 40.50 41.38 37.85 42.06 30.61 45.33 31.78 49.45 25.33 41.99 41.99 42.32 40.26 42.81 32.42 46.08 33.66 50.14 26.41 Total Sys KW** 2.51 2.54 2.54 2.59 2.66 2.58 2.59 2.60 2.64 2.72 2.63 2.64 2.65 2.70 2.78 Capacity MBtuh Total Sens 36.66 36.66 37.87 33.90 38.62 27.55 41.80 28.66 45.92 23.18 38.39 38.39 38.93 36.52 39.52 29.42 42.72 30.67 46.79 24.36 39.82 39.82 39.90 39.90 40.22 31.23 43.40 32.57 47.44 25.44 Total Sys KW** 2.87 2.90 2.92 2.97 3.05 2.95 2.96 2.97 3.03 3.12 3.02 3.02 3.02 3.08 3.18 Capacity MBtuh Total Sens 34.60 34.60 35.39 32.59 36.06 26.34 39.16 27.52 43.20 22.16 36.24 36.24 36.44 36.11 36.90 28.24 40.00 29.50 44.00 23.33 37.59 37.59 37.64 37.64 37.53 30.01 40.64 31.35 44.60 24.44 Total Sys KW** 3.30 3.32 3.34 3.42 3.52 3.40 3.41 3.41 3.48 3.58 3.47 3.47 3.47 3.54 3.64 Capacity MBtuh Total Sens 32.45 32.45 32.82 31.18 33.40 25.10 36.41 26.33 40.37 21.10 34.01 34.01 34.06 34.06 34.16 26.96 37.18 28.29 41.11 22.27 35.28 35.28 35.33 35.33 34.76 28.74 37.75 30.14 41.64 23.37 Total Sys KW** 3.80 3.82 3.84 3.95 4.06 3.92 3.92 3.92 4.01 4.13 4.01 4.01 3.99 4.07 4.20 Capacity MBtuh Total Sens 30.07 30.07 30.12 30.12 30.40 23.73 33.45 25.06 37.44 20.00 31.54 31.54 31.59 31.59 31.10 25.56 34.18 27.02 38.09 21.17 32.78 32.78 32.82 32.82 31.66 27.29 34.73 28.86 38.57 22.27 Total Sys KW** 4.39 4.39 4.40 4.57 4.70 4.51 4.52 4.49 4.64 4.78 4.63 4.64 4.56 4.70 4.85 Capacity MBtuh Total Sens 27.19 27.19 27.24 27.24 26.65 22.06 29.97 23.59 34.27 18.84 28.67 28.67 28.72 28.72 27.35 23.86 30.76 25.56 34.91 20.01 29.92 29.92 29.97 29.97 27.97 25.57 31.38 27.42 35.35 21.11 Total Sys KW** 5.02 5.03 4.98 5.21 5.44 5.17 5.17 5.08 5.32 5.52 5.31 5.31 5.17 5.42 5.59 48VLUK Ultra Low NOx: Product Data Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 15 Performance Data 48 Size Evaporator Air 75 (23.9) 85 (29.4) Condenser Entering Air Temperatures °F (°C) 95 (35) 105 (40.6) 115 (46.1) 125 (51.7) CFM 1400 1550 1800 EWB °F(°C) 57 (13.8) 62 (16.6) 63* (17.2) 67 (19.4) 72 (22.2) 57 (13.8) 62 (16.6) 63* (17.2) 67 (19.4) 72 (22.2) 57 (13.8) 62 (16.6) 63* (17.2) 67 (19.4) 72 (22.2) Capacity MBtuh Total Sens 45.45 45.45 47.27 42.17 48.20 34.32 52.06 35.63 56.98 28.79 47.02 47.02 48.16 44.46 49.02 35.96 52.88 37.35 57.73 29.76 49.14 49.14 49.49 47.88 50.04 38.56 53.94 40.13 58.67 31.28 Total Sys KW** 3.10 3.13 3.13 3.15 3.18 3.17 3.17 3.18 3.20 3.23 3.25 3.25 3.25 3.28 3.31 Capacity MBtuh Total Sens 42.83 42.83 44.15 40.29 45.02 32.66 48.74 34.02 53.50 27.36 44.27 44.27 45.01 42.51 45.75 34.27 49.49 35.71 54.20 28.31 46.25 46.25 46.34 46.34 46.70 36.84 50.43 38.42 55.06 29.83 Total Sys KW** 3.46 3.49 3.50 3.52 3.56 3.54 3.55 3.55 3.57 3.61 3.63 3.63 3.63 3.65 3.69 Capacity MBtuh Total Sens 40.16 40.16 41.03 38.39 41.76 30.98 45.33 32.35 49.89 25.89 41.50 41.50 41.85 40.45 42.41 32.55 46.00 34.00 50.51 26.84 43.34 43.34 43.39 43.39 43.27 35.06 46.85 36.63 51.26 28.32 Total Sys KW** 3.89 3.91 3.92 3.95 3.99 3.96 3.97 3.98 4.00 4.04 4.06 4.06 4.06 4.08 4.12 Capacity MBtuh Total Sens 37.26 37.26 37.61 36.29 38.24 29.20 41.77 30.64 46.16 24.36 38.53 38.53 38.60 38.60 38.87 30.75 42.38 32.25 46.68 25.28 40.29 40.29 40.34 40.34 39.66 33.20 43.16 34.80 47.34 26.73 Total Sys KW** 4.36 4.36 4.38 4.44 4.48 4.44 4.44 4.45 4.49 4.53 4.55 4.55 4.54 4.57 4.62 Capacity MBtuh Total Sens 33.52 33.52 33.57 33.57 33.54 26.93 37.35 28.63 42.23 22.80 34.79 34.79 34.83 34.83 34.15 28.45 38.03 30.31 42.70 23.71 36.55 36.55 36.60 36.60 34.96 30.85 38.95 32.92 43.27 25.12 Total Sys KW** 4.82 4.83 4.82 4.96 5.04 4.92 4.92 4.89 5.04 5.09 5.07 5.07 5.00 5.12 5.18 Capacity MBtuh Total Sens 29.80 29.80 29.84 29.84 28.81 24.65 32.39 26.38 37.37 21.00 30.91 30.91 30.95 30.95 29.32 26.09 32.93 27.95 37.92 21.96 32.46 32.46 32.49 32.49 30.05 28.30 33.66 30.41 38.61 23.50 Total Sys KW** 5.37 5.37 5.33 5.46 5.64 5.46 5.46 5.40 5.53 5.70 5.60 5.61 5.51 5.65 5.78 48VLUK Ultra Low NOx: Product Data Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 16 Performance Data 60 Size Evaporator Air 75 (23.9) 85 (29.4) Condenser Entering Air Temperatures °F (°C) 95 (35) 105 (40.6) 115 (46.1) 125 (51.7) CFM 1750 2000 2250 EWB °F(°C) 57 (13.8) 62 (16.6) 63* (17.2) 67 (19.4) 72 (22.2) 57 (13.8) 62 (16.6) 63* (17.2) 67 (19.4) 72 (22.2) 57 (13.8) 62 (16.6) 63* (17.2) 67 (19.4) 72 (22.2) Capacity MBtuh Total Sens 57.04 57.04 58.59 49.98 59.69 40.44 64.43 42.04 70.39 33.58 59.44 59.44 60.04 53.50 60.84 43.04 65.61 44.79 71.45 35.11 61.37 61.37 61.42 61.42 61.75 45.60 66.46 47.42 72.23 36.56 Total Sys KW** 3.68 3.70 3.70 3.73 3.78 3.78 3.78 3.78 3.81 3.87 3.86 3.86 3.86 3.89 3.95 Capacity MBtuh Total Sens 53.71 53.71 54.72 48.26 55.67 38.90 60.26 40.56 66.06 32.25 55.93 55.93 56.07 56.07 56.74 41.49 61.36 43.29 67.02 33.78 57.76 57.76 57.83 57.83 57.57 43.99 62.10 45.93 67.73 35.23 Total Sys KW** 4.20 4.22 4.23 4.26 4.31 4.31 4.31 4.31 4.34 4.40 4.39 4.40 4.39 4.43 4.48 Capacity MBtuh Total Sens 50.37 50.37 50.83 46.41 51.62 37.32 56.00 39.00 61.55 30.87 52.41 52.41 52.48 52.48 52.56 39.87 56.95 41.68 62.40 32.37 54.09 54.09 54.15 54.15 53.29 42.29 57.67 44.25 63.02 33.84 Total Sys KW** 4.81 4.82 4.83 4.87 4.93 4.92 4.92 4.92 4.96 5.02 5.01 5.01 5.00 5.04 5.11 Capacity MBtuh Total Sens 46.94 46.94 47.02 47.02 47.50 35.70 51.67 37.39 56.94 29.39 48.83 48.83 48.90 48.90 48.32 38.18 52.51 40.02 57.67 30.89 50.36 50.36 50.42 50.42 48.99 40.55 53.13 42.53 58.17 32.33 Total Sys KW** 5.51 5.51 5.52 5.57 5.64 5.62 5.62 5.62 5.66 5.73 5.72 5.72 5.71 5.75 5.82 Capacity MBtuh Total Sens 42.94 42.94 43.00 43.00 42.48 33.69 47.05 35.71 52.21 27.88 44.92 44.92 44.98 44.98 43.48 36.25 47.83 38.30 52.81 29.36 46.38 46.38 46.44 46.44 44.27 38.64 48.44 40.74 53.23 30.78 Total Sys KW** 6.27 6.28 6.25 6.38 6.45 6.44 6.44 6.39 6.47 6.55 6.54 6.54 6.52 6.56 6.65 Capacity MBtuh Total Sens 38.22 38.22 38.29 38.29 36.58 31.27 41.05 33.47 47.19 26.29 39.97 39.97 40.04 40.04 37.36 33.66 41.86 36.09 47.75 27.77 41.44 41.44 41.51 41.51 38.08 35.80 42.58 38.56 48.12 29.19 Total Sys KW** 7.08 7.08 7.00 7.21 7.37 7.26 7.26 7.13 7.35 7.47 7.43 7.43 7.26 7.48 7.57 48VLUK Ultra Low NOx: Product Data Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 17 Performance Data * At 75F (24C) entering dry bulb-Tennessee Valley Authority (TVA) rating conditions; all others at 80F dry bulb. } Sensible capacities shown are based on 80F (27C) entering air at the indoor coil. For sensible capacities at other than 80F (27C), deduct 835 Btuh (245 kW) per 1000 CFM (480 L/S) of indoor coil air for each degree below 80F (27C), or add 835 Btuh (245 kW) per 1000 CFM (480 L/S) of indoor coil air per degree above 80F (27C). ** System KW is total of indoor and outdoor unit kilowatts. LEGEND BF-- Bypass Factor edb-- Entering Dry---Bulb Ewb-- Entering Wet---Bulb kW -- Total Unit Power Input SHC-- Sensible Heat Capacity (1000 Btuh) TC -- Total Capacity (1000 Btuh) (net) rh--Relative Humidity COOLING NOTES: 1. Ratings are net; they account for the effects of the evaporator ---fan motor power and heat. 2. Direct interpolation is permissible. Do not extrapolate. 3. The following formulas may be used: 4. The SHC is based on 80_F (26.6_C) edb temperature of air enteringevaporator coil. Below 80_F (26.6_C) edb, subtract (corr factor x cfm) from SHC. Above 80_F (26.6_C) edb, add (corr factor x cfm) to SHC. Correction Factor = 1.10 x (1 + BF) x (edb --- 80). 5. Integrated capacity is maximum (instantaneous) capacity less the effect of frost on the outdoor coil and the heat required to defrost it. 48VLUK Ultra Low NOx: Product Data Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 18 Gas Adjustment Natural Gas Orifice Sizes and Manifold Pressure - Single and Three Phase Models Nameplate Input (Btu/hr) 45,000 60,000 89,000 *. Altitude of 2001ft and above is not allowed. Orifice No. (Qty) Manifold Press. (in. W.C.) Orifice No. (Qty) Manifold Press. (in. W.C.) Orifice No. (Qty) Manifold Press. (in. W.C.) Altitude of Installation (FT. Above Sea Level) U.S.A.* 0 to 2000 (0-610 m) 0.125-in. 3.2~3.8 28 (1) 3.2~3.8 18 (1) 3.2~3.8 48VLUK Ultra Low NOx: Product Data Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 19 Dry Coil Air Delivery* - Horizontal and Downflow Discharge Sizes 24-60 Unit Size Heating Rise oF (oC) Motor Speed Tap Allowable Functions ESP (in. W.C.) 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 CFM 640 553 454 310 --- --- --- --- --- --- Low BHP 0.07 0.08 0.08 0.09 --- --- --- --- --- --- Blue Alternate Heating Gas Heat Rise (oF) 52 NA NA NA NA NA NA NA NA NA Gas Heat Rise (oC) 29 NA NA NA NA NA NA NA NA NA CFM 830 758 688 607 514 393 254 --- --- --- Med-Low Pink Heating BHP 0.12 0.13 0.13 0.13 0.14 0.14 0.15 --- Alternate Cooling Gas Heat Rise (oF) 40 44 49 55 NA NA NA NA --NA --NA Gas Heat Rise (oC) 22 25 27 31 NA NA NA NA NA NA 24040 25 - 55 (14 - 31) Medium** Red CFM 1080 1025 969 910 852 787 718 638 541 457 Cooling BHP 0.21 0.22 0.23 0.23 0.24 0.24 0.25 0.25 0.26 0.27 Alternate Heating Gas Heat Rise (oF) 31 33 35 37 39 43 47 52 NA NA Gas Heat Rise (oC) 17 18 19 20 22 24 26 29 NA NA CFM 1101 1046 993 936 878 816 749 676 599 498 Med-High Orange Alternate Cooling Alternate Heating BHP 0.22 Gas Heat Rise (oF) 30 0.23 32 0.24 34 0.24 36 0.25 38 0.26 41 0.26 45 0.27 50 0.27 NA 0.28 NA Gas Heat Rise (oC) 17 18 19 20 21 23 25 28 NA NA High Black High Static Cooling Only CFM BHP 1222 1173 1123 1072 1021 967 912 853 787 712 0.29 0.29 0.30 0.31 0.31 0.32 0.33 0.34 0.34 0.34 CFM 640 553 454 310 --- --- --- --- --- --- Low Blue BHP 0.07 0.08 0.08 0.09 --- --- --- --- --- --- Gas Heat Rise (oF) NA NA NA NA NA NA NA NA NA NA Gas Heat Rise (oC) NA NA NA NA NA NA NA NA NA NA CFM 830 758 688 607 514 393 254 --- --- --- Med-Low Pink Alternate Cooling BHP 0.12 0.13 0.13 0.13 0.14 0.14 0.15 --- Alternate Heating Gas Heat Rise (oF) 54 NA NA NA NA NA NA NA --NA --NA Gas Heat Rise (oC) 30 NA NA NA NA NA NA NA NA NA 24060 25 - 55 (14 - 31) Medium** Red CFM 1080 1025 969 910 852 787 718 638 541 457 Cooling BHP 0.21 0.22 0.23 0.23 0.24 0.24 0.25 0.25 0.26 0.27 Alternate Heating Gas Heat Rise (oF) 41 44 46 49 52 NA NA NA NA NA Gas Heat Rise (oC) 23 24 26 27 29 NA NA NA NA NA CFM 1101 1046 993 936 878 816 749 676 599 498 Med-High Orange Heating Alternate Cooling BHP 0.22 Gas Heat Rise (oF) 41 0.23 43 0.24 45 0.24 48 0.25 51 0.26 55 0.26 NA 0.27 NA 0.27 NA 0.28 NA Gas Heat Rise (oC) 23 24 25 26 28 30 NA NA NA NA High Black High Static Cooling Only CFM BHP 1222 1173 1123 1072 1021 967 912 853 787 712 0.29 0.29 0.30 0.31 0.31 0.32 0.33 0.34 0.34 0.34 48VLUK Ultra Low NOx: Product Data Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 20 Dry Coil Air Delivery* - Horizontal and Downflow Discharge Sizes 24-60 Unit Size Heating Rise oF (oC) Motor Speed Tap Allowable Functions ESP (in. W.C.) 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 CFM 643 552 455 348 225 --- --- --- --- --- Low BHP 0.09 0.10 0.11 0.11 0.11 --- --- --- --- --- Blue Alternate Heating Gas Heat Rise (oF) 52 NA NA NA NA NA NA NA NA NA Gas Heat Rise (oC) 29 NA NA NA NA NA NA NA NA NA CFM 817 744 673 597 516 431 325 190 --- --- Med-Low Pink Heating BHP 0.14 0.15 0.15 0.16 0.17 0.17 0.18 0.18 --- Alternate Cooling Gas Heat Rise (oF) 41 45 50 NA NA NA NA NA NA --NA Gas Heat Rise (oC) 23 25 28 NA NA NA NA NA NA NA 30040 25 - 55 (14 - 31) Medium CFM 1159 1104 1045 990 937 878 821 759 693 618 Red Alternate Cooling BHP 0.31 0.32 0.33 0.33 0.34 0.35 0.36 0.37 0.37 0.38 Alternate Heating Gas Heat Rise (oF) 29 30 32 34 36 38 41 44 48 54 Gas Heat Rise (oC) 16 17 18 19 20 21 23 25 27 30 CFM 1201 1147 1095 1037 987 934 877 818 755 671 Med-High** Orange Cooling Alternate Heating BHP 0.34 Gas Heat Rise (oF) 28 0.35 29 0.36 31 0.37 32 0.37 34 0.38 36 0.39 38 0.40 41 0.41 44 0.40 50 Gas Heat Rise (oC) 15 16 17 18 19 20 21 23 25 28 High Black High Static Cooling Only CFM BHP 1291 1236 1181 1131 1080 1033 978 909 792 661 0.41 0.42 0.43 0.43 0.44 0.45 0.46 0.45 0.43 0.40 CFM 643 552 455 348 225 --- --- --- --- --- Low Blue BHP 0.09 0.10 0.11 0.11 0.11 --- --- --- --- --- Gas Heat Rise (oF) NA NA NA NA NA NA NA NA NA NA Gas Heat Rise (oC) NA NA NA NA NA NA NA NA NA NA CFM 817 744 673 597 516 431 325 190 --- --- Med-Low Pink Alternate Cooling BHP 0.14 0.15 0.15 0.16 0.17 0.17 0.18 0.18 --- Alternate Heating Gas Heat Rise (oF) 55 NA NA NA NA NA NA NA NA --NA Gas Heat Rise (oC) 30 NA NA NA NA NA NA NA NA NA 30060 25 - 55 (14 - 31) Medium Red CFM 1159 1104 1045 990 937 878 821 759 693 618 Heating BHP 0.31 0.32 0.33 0.33 0.34 0.35 0.36 0.37 0.37 0.38 Alternate Cooling Gas Heat Rise (oF) 39 40 43 45 48 51 54 NA NA NA Gas Heat Rise (oC) 21 22 24 25 26 28 30 NA NA NA CFM 1201 1147 1095 1037 987 934 877 818 755 671 Medium-High** Orange Cooling Alternate Heating BHP 0.34 Gas Heat Rise (oF) 37 0.35 39 0.36 41 0.37 43 0.37 45 0.38 48 0.39 51 0.40 55 0.41 NA 0.40 NA Gas Heat Rise (oC) 21 22 23 24 25 27 28 30 NA NA High Black High Static Cooling Only CFM BHP 1291 1236 1181 1131 1080 1033 978 909 792 661 0.41 0.42 0.43 0.43 0.44 0.45 0.46 0.45 0.43 0.40 48VLUK Ultra Low NOx: Product Data Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 21 Dry Coil Air Delivery* - Horizontal and Downflow Discharge Sizes 24-60 Unit Size Heating Rise oF (oC) 36060 25 - 55 (14 - 31) 42060 25 - 55 (14 - 31) Motor Speed Low Med-Low Medium Med-High** High Low Med-Low Medium Med-High** High Tap Allowable Functions Blue Pink Red Orange Black Blue Pink Red Orange Black Alternate Cooling, Alternate Gas Heating Gas Heating, Alternate Cooling Alternate Cooling, Alternate Gas Heating Cooling, Alternate Gas Heating High Static Cooling Only Alternate Heating Heating Alternate Cooling Alternate Cooling Alternate Heating Cooling Alternate Heating High Static Cooling Only CFM BHP Gas Heat Rise (oF) Gas Heat Rise (oC) CFM BHP Gas Heat Rise (oF) Gas Heat Rise (oC) CFM BHP Gas Heat Rise (oF) Gas Heat Rise (oC) CFM BHP Gas Heat Rise (oF) Gas Heat Rise (oC) CFM BHP CFM BHP Gas Heat Rise (oF) Gas Heat Rise (oC) CFM BHP Gas Heat Rise (oF) Gas Heat Rise (oC) CFM BHP Gas Heat Rise (oF) Gas Heat Rise (oC) CFM BHP Gas Heat Rise (oF) Gas Heat Rise (oC) CFM BHP 0.1 1096 0.14 41 23 1151 0.16 39 22 1299 0.22 34 19 1382 0.26 32 18 1530 0.33 956 0.13 47 26 1201 0.21 37 21 1443 0.32 31 17 1529 0.37 29 16 1604 0.42 0.2 1044 0.15 43 24 1103 0.17 40 22 1252 0.23 36 20 1335 0.27 33 19 1485 0.35 899 0.13 50 28 1153 0.22 39 22 1402 0.33 32 18 1491 0.39 30 17 1565 0.44 0.3 994 0.16 45 25 1056 0.18 42 23 1204 0.24 37 21 1292 0.28 35 19 1442 0.36 843 0.14 53 29 1107 0.22 40 22 1361 0.34 33 18 1451 0.40 31 17 1529 0.45 ESP (in. W.C.) 0.4 0.5 945 0.18 47 26 1002 0.19 45 25 1155 0.25 39 21 1246 0.29 36 20 1398 0.37 786 0.15 NA NA 892 0.19 50 28 953 0.20 47 26 1106 0.26 40 22 1202 0.30 37 21 1354 0.38 729 0.16 NA NA 1060 1012 0.23 0.24 42 44 23 25 1322 0.35 34 19 1284 0.36 35 19 1411 1376 0.41 32 18 1490 0.46 0.42 32 18 1455 0.47 0.6 837 0.19 53 30 897 0.21 50 28 1059 0.27 42 23 1152 0.31 39 22 1309 0.39 676 0.16 NA NA 965 0.25 46 26 1243 0.37 36 20 1338 0.43 33 19 1421 0.48 0.7 780 0.20 NA NA 845 0.22 53 29 1007 0.28 44 25 1106 0.32 40 22 1263 0.40 621 0.17 NA NA 917 0.26 49 27 1204 0.38 37 21 1300 0.44 34 19 1385 0.49 0.8 717 0.21 NA NA 788 0.23 NA NA 959 0.29 47 26 1058 0.33 42 23 1217 0.41 558 0.18 NA NA 871 0.27 51 28 1164 0.39 38 21 1261 0.45 35 20 1348 0.50 0.9 664 0.22 NA NA 729 0.24 NA NA 905 0.30 49 27 1007 0.34 44 25 1169 0.42 504 0.18 NA NA 828 0.28 54 30 1124 0.40 40 22 1223 0.46 36 20 1310 0.51 1 612 0.23 NA NA 678 0.25 NA NA 844 0.31 53 29 957 0.35 47 26 1120 0.43 435 0.19 NA NA 782 0.29 NA NA 1084 0.42 41 23 1185 0.47 38 21 1274 0.52 48VLUK Ultra Low NOx: Product Data Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 22 Dry Coil Air Delivery* - Horizontal and Downflow Discharge Sizes 24-60 Unit Size Heating Rise oF (oC) 42090 35 - 65 (19 - 36) 48090 35 - 65 (19 - 36) Motor Speed Low Med-Low Medium Med-High** High Low Med-Low Medium** Med-High High Tap Allowable Functions Blue Pink Red Orange Black Blue Pink Red Orange Black Alternate Cooling Alternate Heating Heating Alternate Cooling Cooling Alternate Heating High Static Cooling Only Heating Alternate Cooling Cooling Alternate Heating Alternate Cooling Alternate Heating High Static Cooling Only CFM BHP Gas Heat Rise (oF) Gas Heat Rise (oC) CFM BHP Gas Heat Rise (oF) Gas Heat Rise (oC) CFM BHP Gas Heat Rise (oF) Gas Heat Rise (oC) CFM BHP Gas Heat Rise (oF) Gas Heat Rise (oC) CFM BHP CFM BHP Gas Heat Rise (oF) Gas Heat Rise (oC) CFM BHP Gas Heat Rise (oF) Gas Heat Rise (oC) CFM BHP Gas Heat Rise (oF) Gas Heat Rise (oC) CFM BHP Gas Heat Rise (oF) Gas Heat Rise (oC) CFM BHP 0.1 956 0.13 NA NA 1201 0.21 56 31 1443 0.32 46 26 1529 0.37 44 24 1604 0.42 641 0.05 NA NA 1437 0.29 47 26 1771 0.51 38 21 1928 0.64 35 19 2212 0.97 0.2 899 0.13 NA NA 1153 0.22 58 32 1402 0.33 48 27 1491 0.39 45 25 1565 0.44 551 0.06 NA NA 1395 0.30 48 27 1735 0.52 39 21 1897 0.65 35 20 2167 0.99 0.3 843 0.14 NA NA 1107 0.22 60 34 1361 0.34 49 27 1451 0.40 46 26 1529 0.45 462 0.06 NA NA 1351 0.31 50 28 1699 0.53 39 22 1862 0.67 36 20 2124 1.00 ESP (in. W.C.) 0.4 0.5 786 0.15 NA NA 1060 0.23 63 35 1322 0.35 51 28 1411 0.41 47 26 1490 0.46 385 0.07 NA NA 1307 0.32 51 28 1664 0.55 40 22 1830 0.68 37 20 2061 0.97 729 0.16 NA NA 1012 0.24 NA NA 1284 0.36 52 29 1376 0.42 49 27 1455 0.47 289 0.07 NA NA 1265 0.33 53 29 1627 0.56 41 23 1796 0.69 37 21 1976 0.95 0.6 676 0.16 NA NA 965 0.25 NA NA 1243 0.37 54 30 1338 0.43 50 28 1421 0.48 216 0.08 NA NA 1221 0.34 55 30 1592 0.57 42 23 1764 0.71 38 21 1892 0.91 0.7 621 0.17 NA NA 917 0.26 NA NA 1204 0.38 56 31 1300 0.44 52 29 1385 0.49 163 0.08 NA NA 1176 0.35 57 32 1557 0.58 43 24 1732 0.72 39 21 1794 0.86 0.8 558 0.18 NA NA 871 0.27 NA NA 1164 0.39 58 32 1261 0.45 53 29 1348 0.50 115 0.09 NA NA 1132 0.36 59 33 1522 0.59 44 24 1698 0.73 39 22 1699 0.82 0.9 504 0.18 NA NA 828 0.28 NA NA 1124 0.40 60 33 1223 0.46 55 30 1310 0.51 ----NA NA 1084 0.37 62 34 1486 0.61 45 25 1620 0.71 41 23 1567 0.77 1 435 0.19 NA NA 782 0.29 NA NA 1084 0.42 62 34 1185 0.47 57 31 1274 0.52 ----NA NA 1039 0.38 64 36 1450 0.62 46 26 1512 0.66 44 25 1438 0.71 48VLUK Ultra Low NOx: Product Data Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 23 Dry Coil Air Delivery* - Horizontal and Downflow Discharge Sizes 24-60 Unit Size 60090 Heating Rise Motor Speed Tap oF (oC) Allowable Functions CFM Low Blue Alternate Heating BHP Gas Heat Rise (oF) Gas Heat Rise (oC) CFM Med-Low Pink Heating Alternate Cooling BHP Gas Heat Rise (oF) Gas Heat Rise (oC) 35 - 65 CFM (19 - 36) Medium** Red Cooling Alternate Heating BHP Gas Heat Rise (oF) Gas Heat Rise (oC) CFM Med-High Orange Alternate Cooling Alternate Heating BHP Gas Heat Rise (oF) Gas Heat Rise (oC) High Black High Static Cooling Only CFM BHP Shaded areas indicate speed/static combinations that are not permitted for dehumidification speed. 0.1 641 0.05 NA NA 1437 0.29 47 26 1914 0.62 35 19 1928 0.64 35 19 2212 0.97 * Air delivery values are without air filter and are for dry coil (See Wet Coil Pressure Drop Table). Factory-shipped continuous fan speed Factory-shipped heating speed ** Factory-shipped cooling speed "High Static Cooling" = Only to be used for cooling function (not allowed for heating function) NOTE: Deduct field-supplied air filter pressure drop and wet coil pressure drop to obtain static pressure available for ducting. Wet Coil Pressure Drop (IN. W.C.) 0.2 551 0.06 NA NA 1395 0.30 48 27 1881 0.64 36 20 1897 0.65 35 20 2167 0.99 0.3 462 0.06 NA NA 1351 0.31 50 28 1848 0.65 36 20 1862 0.67 36 20 2124 1.00 Unit Size 24 30 36 42 48 60 Standard CFM (SCFM) 600 700 800 900 1000 1100 1200 1300 1400 1500 0.03 0.04 0.04 0.05 0.06 0.05 0.06 0.07 0.08 0.11 0.02 0.03 0.03 0.04 0.05 0.05 0.05 0.05 0.06 0.07 0.08 0.08 0.04 0.05 0.05 0.06 0.06 ESP (in. W.C.) 0.4 0.5 385 0.07 NA NA 1307 0.32 51 28 1814 0.67 37 21 1830 0.68 37 20 2061 0.97 289 0.07 NA NA 1265 0.33 53 29 1780 0.68 38 21 1796 0.69 37 21 1976 0.95 1600 1700 0.09 0.09 0.07 0.07 0.07 0.01 0.6 216 0.08 NA NA 1221 0.34 55 30 1748 0.69 38 21 1764 0.71 38 21 1892 0.91 1800 0.11 0.08 0.08 Economizer with 1-in. Filter Pressure Drop (IN. W.C.) Filter Size in. (mm) 600-1400 CFM 12x20x1+12x20x1 (305x508x25+305x508x25) 1200-1800CFM 16x24x1+14x24x1 (406x610x25+356x610x25) 1500-2200CFM 16x24x1+18x24x1 (406x610x25+457x610x25) Cooling Tons 2.0, 2.5 3.5 3.0, 4.0, 5.0 Standard CFM (SCFM) 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 - - 0.08 0.09 0.10 0.11 0.11 0.13 0.14 - - - - - - - - 0.09 0.09 0.10 0.12 0.13 0.15 0.17 - - - - - - - - - 0.15 0.17 0.18 0.7 163 0.08 NA NA 1176 0.35 57 32 1716 0.71 39 22 1732 0.72 39 21 1794 0.86 0.8 115 0.09 NA NA 1132 0.36 59 33 1681 0.72 40 22 1698 0.73 39 22 1699 0.82 0.9 ----NA NA 1084 0.37 62 34 1619 0.71 41 23 1620 0.71 41 23 1567 0.77 1 ----NA NA 1039 0.38 64 36 1512 0.66 44 25 1512 0.66 44 25 1438 0.71 1900 2000 2100 2200 0.09 0.14 0.09 0.10 0.12 0.13 1800 1900 2000 2100 2200 - - - - - 0.17 0.19 0.21 - - 0.20 0.21 0.22 0.23 0.23 48VLUK Ultra Low NOx: Product Data Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 24 Filter Pressure Drop Table (IN. W.C.) Filter Size in. (mm) 600-1400CFM 12x20x1+12x20x1 (305x508x25+305x508x25 1200-1800 CFM 16x24x1+14x24x1 (406x610x25+356x610x25) 1100-2200 CFM 16x24x1+18x24x1 (406x610x25+457x610x25) Cooling Tons 2.0, 2.5 3.5 3.0 4.0 5.0 Standard CFM (SCFM) 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 0.03 0.05 0.06 0.08 0.10 0.11 0.13 0.14 0.16 - - - - - - - - - - - - - - 0.07 0.08 0.09 0.09 0.10 0.11 0.12 - - - - - - - - - 0.02 0.02 0.03 0.03 0.04 0.06 0.08 0.10 0.11 0.13 0.14 0.15 48VLUK Ultra Low NOx: Product Data Typical Piping and Wiring ROOF-MOUNTING CURB SUPPLY-AIR FLEXIBLE DUCT ROOF RETURN-AIR FLEXIBLE DUCT CONCENTRIC DIFFUSER BOX (FIELD-SUPPLIED) CEILING RETURN AIR TOP COVER INDOOR THERMOSTAT FROM POWER SOURCE A09230 Application Data Condensate trap -- A 2-in. (50.8 mm) condensate trap must be field supplied. Ductwork -- Secure downflow discharge ductwork to roof curb. For horizontal discharge applications, attach ductwork to unit with flanges. To convert a unit to downflow discharge -- Units are equipped with factory-installed inserts in the down-flow openings. Removal of the inserts is similar to removing an electrical knock-out. Use the duct cover to seal the horizontal discharge openings in the unit. Units installed in horizontal discharge orientation do not require duct covers. Airflow -- Units are draw-thru in the cooling mode and blow-thru in the heating mode. FROM GAS LINE DISCONNECT PER NEC* *NEC - NATIONAL ELECTRICAL CODE A09231 Maximum cooling airflow -- To minimize the possibility of condensate blow-off from the evaporator, airflow through the units should not exceed 450 CFM per ton. Minimum cooling airflow -- Minimum cooling airflow is 350 cfm per ton. Minimum ambient cooling operation temperature -- All standard units have a minimum ambient operating temperature of 40_F (4_C). With accessory low ambient temperature kit, units can operate at temperatures down to 0_F (-17_C). Minimum temperature -- Air entering the heat exchanger in heating mode must be a minimum of 50_F (10_C) continuous and/or 45_F (7_C) intermittent. Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 25 48VLUK Ultra Low NOx: Product Data Electrical Data MODEL NOMINAL V-PH-HZ VOLTAGE RANGE MIN MAX COMPRESSOR RLA LRA OFM FLA IFM FLA IDM FLA POWER SUPPLY MCA MOCP 24040, 24060 208/230-1-60 197 253 11.1 59.5 0.6 3.9 0.7 18.4 25 30040, 30060 208/230-1-60 197 253 14.1 67.9 1.05 3.9 0.7 22.6 30 36060 208/230-1-60 197 253 14.7 75 1.05 3.8 0.7 23.3 35 36060 208/230-3-60 197 253 8.5 70 1.05 3.8 0.7 15.5 25 42060, 42090 208/230-1-60 197 253 16.7 109 1.05 5.8 0.7 27.8 40 42060, 42090 208/230-3-60 197 253 11.2 84 1.05 5.8 0.7 20.9 30 48090 208/230-1-60 197 253 19.6 130 1.05 6.9 0.7 32.5 50 48090 208/230-3-60 197 253 13.7 83.1 1.05 6.9 0.7 25.1 35 LEGEND FLA - Full Load Amps IDM - Inducer Motor IFM - Indoor Fan Motor LRA -Locked Rotor Amps MCA - Minimum Circuit Amps MOCP - Maximum Over Current Protection OFM - Outdoor Fan Motor RLA - Rated Load Amps A06564 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 26 48VLUK Ultra Low NOx: Product Data Connection Wiring Schematic 208/230-1-60 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 27 A221593 48VLUK Ultra Low NOx: Product Data Ladder Wiring Schematic 208/230-1-60 A221594 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 28 48VLUK Ultra Low NOx: Product Data Connection Wiring Schematic 208/230-3-60 A221591 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 29 48VLUK Ultra Low NOx: Product Data Ladder Wiring Schematic 208/230-3-60 A221592 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 30 48VLUK Ultra Low NOx: Product Data Controls Operating Sequence Heating Sequence of Operation (Ultra Low NOx Single and Three Phase Models) On a call for heating, terminal W of the thermostat is energized, starting the induced-draft motor for a 30 second pre-purge at intermediate speed. When the pressure switch senses that the induced-draft motor is moving sufficient combustion air, the burner sequence begins. This function is controlled by the integrated gas unit controller (IGC). After 30 sec of pre-purge is complete, the pressure switch checks for sufficient combustion. Then, the gas valve energizes and the system attempts to ignite with igniter being energized. The igniter energizes for 5 sec and integrated gas controller (IGC) allows system to sense flame for 2 sec at the end of 5 sec of ignition trial. On first successful ignition, system stays at the intermediate inducer speed for 10 sec and gradually ramps up to the high speed for steady-state operation. The system uses the same logic for 2nd ignition trial. If a 3rd or 4th ignition attempt is needed, the inducer speed is decreased to the low speed. On a successful light on the 3rd or 4th attempt, the inducer speed is increased to the intermediate speed for about 10 seconds and then gradually ramps up to the high speed for steady-state operation. In case the 4th attempt fails, the system will lock out for 1 hr. After 1 hr. lock out period, the system starts with normal operating sequence. Once flame is established and proven successfully, indoor (evaporator) fan motor is energized after 30 seconds. When the thermostat is satisfied and W is de-energized, the pre-mix burner will stop firing and the indoor (evaporator) fan motor shuts off after a 90 second time-off delay. Please note that the IGC has the capability to automatically decrease the indoor (evaporator) fan motor "ON" delay and increase the indoor (evaporator) fan motor "OFF" delay in the event of high duct static and/or partially-clogged filter. Cooling Sequence of Operation With the room thermostat SYSTEM switch in the COOL position and the FAN switch in the AUTO position, the cooling sequence of operation is as follows: 1. When the room temperature rises to a point that is slightly above the cooling control setting of the thermostat, the thermostat completes the circuit between thermostat terminal R to terminals Y and G. 2. The normally open contacts of energized contactor (C) close and complete the circuit through compressor motor (COMP) to condenser (outdoor) fan motor (OFM). Both motors start instantly. 3. The set of normally open contacts on the interface fan board (IFB) are closed which energizes a circuit to the indoor fan motor (IFM). NOTE: Once the compressor has started and then stopped, it should not be started again until 5 minutes have elapsed. The cooling cycle remains on until the room temperature drops to a point that is slightly below the cooling control setting of the room thermostat. At this point, the thermostat breaks the circuit between thermostat terminal R to terminals Y and G. These open circuits deenergize contactor coil C. The condenser and compressor motors stop. After a 60-sec. delay, the blower motor stops. The unit is in a standby condition, waiting for the next call for cooling from the room thermostat. Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 31 48VLUK Ultra Low NOx: Product Data Guide Specifications Packaged Gas Heating/Electric Cooling Units Constant Volume Application HVAC Guide Specifications Size Range:2 to 5 Tons, Nominal Cooling 60,000 to 90,000 Btuh, Nominal Heating Input General SYSTEM DESCRIPTION Outdoor rooftop mounted, gas heating/electric cooling unit utilizing a hermetic scroll compressor for cooling duty. Unit shall discharge supply air vertically or horizontally as shown on contract drawings. Condenser fan/coil section shall have a draw-thru design with vertical discharge for minimum sound levels. QUALITY ASSURANCE Unit shall be rated in accordance with AHRI Standards 210/240 and 270-1995. Unit shall be designed in accordance with UL Standard 1995 and ANSI Z 21.47. Unit shall be manufactured in a facility registered to ISO 9001 manufacturing quality standard. Unit shall be UL listed and c-UL certified as a total package for safety requirements. Roof curb shall be designed to conform to NRCA Standards. Insulation and adhesives shall meet NFPA 90.1 requirements for flame spread and smoke generation. Cabinet insulation shall meet ASHRAE Standard 62.2. DELIVERY, STORAGE AND HANDLING Unit shall be stored and handled per manufacturer's recommendations. Products EQUIPMENT General: Factory-assembled, single-piece, heating and cooling unit. Contained within the enclosure shall be all factory wiring, piping, controls, refrigerant charge with R-410A refrigerant, and special features required prior to field start-up. Unit Cabinet: Unit cabinet shall be constructed of phosphated, zinc-coated, pre-painted steel capable of with-standing 500 hours in salt spray. Normal service shall be through 3 removable cabinet panels. The unit shall be constructed on a rust proof unit base that has an externally trapped, integrated sloped drain. Evaporator fan compartment top surface shall be insulated with a minimum 1/2-in. (12.7 mm) thick, flexible fiberglass insulation, coated on the air side and retained by adhesive and mechanical means. The evaporator wall sections will be insulated with a minimum semi-rigid foil-faced board capable of being wiped clean. Aluminum foil-faced fiberglass insulation shall be used in the entire indoor air cavity section. Unit shall have a field-supplied condensate trap. Fans: The evaporator fan shall be a multi-speed, direct-drive, as shown on equipment drawings. Fan wheel shall be made from steel, be double-inlet type with forward curved blades with corrosion resistant finish. Fan wheel shall be dynamically balanced. Condenser fan shall be direct drive propeller type with aluminum blades riveted to corrosion resistant steel spiders, be dynamically balanced, and discharge air vertically. Compressor: Fully hermetic compressors with factory-installed vibration isolation. Coils: Evaporator and condenser coils shall have aluminum plate fins mechanically bonded to seamless copper tubes with all joints brazed. Tube sheet openings shall be belled to prevent tube wear. Heating Section: Induced-draft combustion type with energy saving direct spark ignition system and redundant main gas valve. Induced-draft motors shall provide adequate airflow for combustion. The heat exchangers shall be constructed of stainless steel for corrosion resistance. Pre-mixed burners shall be stainless steel and other alloys. All gas piping and electric power shall enter the unit cabinet at a single location. Refrigerant Components: Refrigerant expansion device shall be of the TXV (thermostatic expansion valve) or fixed orifice type. Filters: Filter section shall consist of field-installed, throwaway, 1-in. (25 mm) thick fiberglass filters of commercially available sizes. Controls and Safeties: Unit controls shall be complete with a self-contained low voltage control circuit. Compressors shall incorporate a solid-state compressor protector that provides reset capability. Operating Characteristics: Unit shall be capable of starting and running at 125_F (51_C) ambient outdoor temperature per maximum load criteria of AHRI Standard 210. Compressor with standard controls shall be capable of operation down to 40_F (4_C) ambient outdoor temperature. Units shall be provided with fan time delay to prevent cold air delivery before the heat exchanger warms up. Unit shall be provided with 60-second fan time delay (single phase models) after the thermostat is satisfied. Electrical Requirements: All unit power wiring shall enter the unit cabinet at a single location. Motors: Compressor motors shall be of the refrigerant-cooled type with line-break thermal and current overload protection. All fan motors shall have permanently lubricated bearings, and inherent, automatic reset, thermal overload protection. Condenser fan motor shall be totally enclosed. Evaporator Fan Motor to be ECM Motor. Compressor Protection: Solid-state control shall protect compressor by preventing "short cycling." Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 32 48VLUK Ultra Low NOx: Product Data Guide Specifications (Continued) Ultra Low NOx: Shall provide NOx reduction to meet 14ng/J NOx emissions requirements as shipped from the factory. Special Features Available: 1. Coil Options Base unit with tin plated indoor coil hairpins available as a factory installed option. 2. Compressor Start Kit (single phase units only): Shall provide additional starting torque for single-phase compressors. 3. Thermostat: To provide for one-stage heating and cooling in addition manual or automatic changeover and indoor fan control. 4. Crankcase Heater: Shall provide anti-floodback protection for low-load cooling applications. 5. Economizer: (Horizontal - Field installed accessory) (Vertical - Field installed accessory) a. Economizer controls capable of providing free cooling using outside air. b. Equipped with low leakage dampers not to exceed 3% leakage, at 1.0 IN. W.C. pressure differential. c. Spring return motor shuts off outdoor damper on power failure. 6. Filter Rack Kit: Shall provide filter mounting for downflow applications. Offered as a field installed accessory. 7. Flat Roof Curb: Curbs shall have seal strip and a wood nailer for flashing and shall be installed per manufacturer's instructions. 8. Flue Discharge Deflector Directs flue gas exhaust; 90 degrees upward from current discharge. 9. Low Ambient Package: Shall consist of a solid-state control and condenser coil temperature sensor for controlling condenser-fan motor operation, which shall allow unit to operate down to 0_F (-18_C) outdoor ambient temperature when properly installed. 10. Manual Outdoor Air Damper: Package shall consist of damper, birdscreen, and rainhood which can be preset to admit outdoor air for year-round ventilation. 11. Square-To-Round Duct Transitions (24-48 models): Shall have the ability to convert the supply and return openings from rectangular to round. 12. Time Guard II Automatically prevents the compressor from restarting for at least 4 minutes and 45 seconds after shutdown of the compressor. Not required when a corporate programmable thermostat is applied or with a RTU-MP control. Offered as a field installed accessory. 13. Low Pressure Switch Kit Kit is designed for use when a low pressure control in desired. This kit provides added reliability for the compressor. Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 33 48VLUK Ultra Low NOx: Product Data © 2022 Carrier. All rights reserved. Edition Date: 12/22 Catalog No: 48VL-ULN-08PD Replaces: 48VL-ULN-07PD Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 34
