Trane Single Packaged Heat Pump

Product Specifications

(a) Rated in accordance with AHRI Standard 210/240.

(b) Rated in accordance with D.O.E. test procedure.

(c) Sound Power values are not adjusted for AHRI 270-95 tonal corrections.

(d) Calculated in accordance with currently prevailing Nat'l Electrical Code.

(e) Standard Air - Dry Coil - Outdoor.

(f) Standard Air - Dry Coil - Indoor.

(g) Filters must be installed in return air stream. Square footages listed are based on 300 f.p.m. face velocity. If permanent filters are used size per manufacturer's recommendation with a clean resistance of 0.05" W.C.

Outline Drawings

Figure 1: Unit Outline (2-5 Tons)

A clear illustration of the Single Packaged Heat Pump unit, showing its external structure with a prominent fan grille on top and ventilation louvers on the sides. The diagram includes top, front, and bottom views, detailing dimensions for overall length, width, and height, as well as specific connection points and knockouts. A cross-section (Section F-F) illustrates typical installation on a concrete pad with insulation.

Figure 2: Unit Dimensions and Model Variations

Perspective views of the packaged heat pump unit are presented, highlighting key dimensions labeled W1 (width of the fan section), W2 (width of the compressor/coil section), W3 (depth), and W4 (overall depth). These views also indicate power and drain entry points. A table provides these dimensions and net weight for various Trane unit models, including the 4WCA4024C, 4WCA4030C, 4WCA4036C, 4WCA4042C, 4WCA4048C, and 4WCA4060C.

Indoor Fan Performance (230v)

Table 1: Heater Table

Table 2: Airflow Table

This table details the airflow (CFM) and power consumption (WATTS) for the 4WCA4048C unit at various External Static Pressure (ESP) levels (0.1 to 1.0 in. w.g.) for Low, Medium, and High fan speeds.

Note: Airflow must not exceed 1800 CFM due to condensate blowoff.

Supplementary Electric Heaters

Table 3: HP Models Only

This table details the specifications for supplementary electric heaters offered for HP models. It includes the Unit Model, Electric Heater Model, Rated Voltage, Phase, Amps, Heater Capacity (KW and BTUH), Number of Stages, KW/Stage, Minimum Circuit Ampacity (MCA), and Maximum Over-Current Protection Device.

1. Any power supply and circuits must be wired and protected in accordance with local electrical codes.

2. The values listed in the above table are for the electric heater only.

3. Field wiring must be rated at least 75° C.

4. * indicates an alpha character.

ALL VALUES ARE FOR THE ELECTRIC HEATER ONLY

Table 4: BAYSPEK - Single Power Entry Kit

Mechanical Specifications

General

The units are designed for horizontal airflow as shipped and can be converted to downflow. They are factory assembled, piped, internally wired, and fully charged with refrigerant. Units are certified to UL Standard 1995 and factory run tested for cooling operation, fan and blower rotation, and control or TXV sequence. The units are designed to operate at ambient temperatures between 55°F and 115°F in cooling. Cooling performance is rated in accordance with AHRI standards.

Unit Casing

All components are mounted in a weather-resistant steel cabinet with an enamel finish. Access panels are provided for unit controls and indoor coil and fans. The indoor air section compartment is insulated with fireproof, permanent, odorless fiber material. Knockouts are provided for utility and control connections, and drain connections accommodate indoor water runoff.

Compressor (2 and 2 1/2 Ton Models)

Features hermetically sealed, high efficiency rotary compressors with internal overcurrent and over-temperature protection, and internal pressure relief. Includes centrifugal oil pump, low vibration, and low noise.

Compressor (3–5 Ton Models)

Features hermetically sealed, high efficiency scroll compressors with internal overcurrent and over-temperature protection, and internal pressure relief. Includes centrifugal oil pump, low vibration, and low noise.

Refrigeration System

Units have refrigerant control, service pressure tap ports, and a refrigerant line filter. The evaporator coil features internally enhanced 3/8" OD seamless copper tubing mechanically bonded to aluminum fins, factory pressure and leak tested at 480 – 650 psig. All units use a TXV to control refrigerant flow.

Condenser Coil

Constructed with all aluminum micro channel, extruded tubes, mechanically bonded to aluminum fins, and factory pressure and leak tested at 480 – 650 psig.

Indoor Air Fan

Utilizes a constant torque, forward-curved, centrifugal wheel in a metallic blower housing. The motor has thermal overload protection and permanently lubricated bearings. The motor/blower assembly is isolated from the unit with rubber mounts.

Outdoor Fan

Features a direct-drive, statically and dynamically balanced propeller fan for draw-through vertical discharge. The weather-proof motor has built-in thermal overload protection and permanently lubricated bearings.

System Controls

System controls include condenser fan, evaporator fan, and compressor contactors.

Accessories Roof Curb

The roof curb is designed to mate with the unit and provide support for weathertight installation. Adhesive back polyurethane sealing strips ensure an airtight seal between supply and return openings. The design allows for field-fabricated ductwork connection. The curb ships knocked down for field assembly and includes factory-installed wood nailer strips.

Electric Heaters

Each heater assembly includes power supply fusing (if over 48 amps), automatic resetting limit switches, and heat limiters for thermal protection. Heaters feature polarized plugs for quick connection to unit low voltage wiring and are UL listed.

Single Source Power Entry

This accessory, used with electric heat, allows single source power connection for both the unit and heater. Kits include specific matching heater(s), high voltage terminal blocks, fuse blocks, fuses, and cut-to-length interconnecting wiring. Components install within the heater cabinet, providing fuse protection as required for both the unit and accessory heater, wired in accordance with local codes.

Control Options

Start Kit

Provides extra compressor starting capacity for single-phase equipment.

Standard Indoor Thermostats

Available in two-stage heating/cooling or one-stage heating/cooling, with manual or automatic changeover options.

Programmable Electronic Night Setting Thermostat

Offers heating setback and cooling setup with 7-day programming capability. Available in 1H/1C or 2H/2C models.

About Trane and American Standard Heating and Air Conditioning

Trane and American Standard create comfortable, energy-efficient indoor environments for residential applications. For more information, visit www.trane.com or www.americanstandardair.com.

The AHRI Certified mark indicates company participation in the AHRI Certification program. For verification of individual certified products, go to ahridirectory.org.

The manufacturer has a policy of continuous data improvement and reserves the right to change design and specifications without notice. The company is committed to using environmentally conscious print practices.

Document Version: 4WCA4048C-SUB-1A-EN, Last Updated: 28 Oct 2022