Submittal Data Sheet
Indoor Unit Model#: EZ-48-AHB
Outdoor Unit Model#: EZ-48-HPB
Product: 48K DIYCOOL R454B Ducted Air Handler & Extended Heat Pump Condenser
Efficiency Ratings
| Rating | Cooling | Heating |
|---|---|---|
| SEER2 | 16.5 | HSPF2-4 9.5 |
| EER2 | 10.5 | COP 3.40 |
Cooling Performance
| Parameter | Value |
|---|---|
| Rated Capacity (Btu/hr) | 48000 |
| Min/Max Capacity (Btu/hr) | 15600 ~ 51000 |
| Moisture Removal (L/h) | 3.85 |
| Standard Operating Range (°F/°C) | -22 ~ 122 (-30 ~ 50) |
| Conditions | Indoor: 80°F DB/67°F WB Outdoor: 95°F DB/75°F WB |
Heating Performance
| Parameter | Value |
|---|---|
| 1. @ 47°F Rated Capacity (Btu/hr) | 50000 |
| 1. @ 47°F Min/Max Capacity (Btu/hr) | 15500 ~ 57300 |
| 2. @ 17°F Rated Capacity (Btu/hr) | 37000 |
| 3. @ 5°F Rated: Capacity / COP | 46000 / 1.9 |
| 3. @ 5°F Max: Capacity (Btu/hr) | 46000 |
| Standard Operating Range (°F/°C) | -22 ~ 75 (-30 ~ 24) |
| 1. Rated Heating Conditions | Indoor: 70°F DB/60°F WB Outdoor: 47°F DB/43°F WB |
| 2. Rated Heating Conditions | Indoor: 70°F DB/60°F WB Outdoor: 17°F DB/15°F WB |
| 3. Heating Conditions, Compressor Operating at Max. Frequency | Indoor: 70°F DB/60°F WB Outdoor: 5°F DB/5°F WB |
Indoor Unit Specifications
| Parameter | Value |
|---|---|
| ESP (in.W.G) | 0 - 0.8 |
| Indoor Air Flow (Turbo/H/M/L/Si) (CFM) | 1601.0 / 1471.5 / 1283.1 / 1094.8 / NA |
| Indoor Noise Level (Turbo/H/M/L/Si) (dBA) | NA / 52 / 50 / 34 / NA |
| Dimension (W×D×H) (inch) | 21.02 x 24.49 x 52.99 |
| Dimension (W×D×H) (mm) | 534.0 x 622.0 x 1346.0 |
| Package (W×D×H) (inch) | 27.95 x 26.77 x 56.50 |
| Package (W×D×H) (mm) | 710 x 680 x 1435 |
| Net/Gross Weight (lbs) | 162.92 / 190.92 |
| Net/Gross Weight (kg) | 73.9 / 86.6 |
Outdoor Unit Specifications
| Parameter | Value |
|---|---|
| Compressor Type | ROTARY |
| Compressor Model | MTH550UKPC8FU |
| Refrigerant | R454B |
| Refrigerant Oil Charge (mL) | 1800 |
| Refrigerant Oil | HAF68D1C |
| Outdoor Air Flow (Max) (CFM) | 3037.1 |
| Outdoor Noise Level (dBA) | 65 |
| Dimension (W×D×H) (inch) | 38.58 x 16.34 x 38.39 |
| Dimension (W×D×H) (mm) | 980.0 x 415.0 x 975.0 |
| Package (W×D×H) (inch) | 45.08 x 19.68 x 42.52 |
| Package (W×D×H) (mm) | 1145 x 500 x 1080 |
| Net/Gross Weight (lbs) | 201.06 / 232.36 |
| Net/Gross Weight (kg) | 91.2 / 105.4 |
Electrical Specifications
| Parameter | Value |
|---|---|
| Indoor Power Supply | 115/208/230V, 60Hz, 1Ph |
| Indoor MCA 115V/(208/230V) | 14.5 / 11.0 |
| Indoor MOP | 15 |
| Outdoor Power Supply | 208/230V, 60Hz, 1Ph |
| Outdoor MCA | 38 |
| Outdoor MOP | 40 |
| Communication Wiring | AWG 20-2 |
| Compressor RLA | 28 |
| Outdoor Fan Motor RLA | 2 |
| Outdoor Fan Motor W | 250 |
| Indoor Fan Motor RLA | 7.8 |
| Indoor Fan Motor W | 750 |
| System Power Input @ Cooling (W) | 4690 (1345 ~ 5180) |
| System Power Input @ Heating (W) | 4750 (1045 ~ 5200) |
| MCA: Min. circuit amps (A) | |
| MOCP: Max. over current protection (A) | |
| RLA: Rated load amps (A) | |
| W: Fan motor rated output (W) |
Refrigerant Piping Specifications
| Parameter | Value |
|---|---|
| Throttle type (Indoor) | EXV |
| Throttle type (Outdoor) | EXV |
| Liquid Size | 9.52mm (3/8in) |
| Gas Size | 19mm (3/4in) |
| Max. Piping Length (ft/m) | 246 (75) |
| Max. Height Difference (ft/m) | 98.4 (30) |
| Max. Pre-charged Length (ft/m) | 24.6 (7.5) |
| Refrigerant Pre-charged Amount (oz/g) | 134.04 (3.8) |
| Additional Charge of Refrigerant ((oz/ft)/(g/m)) | 0.7 (65) |
| Connection Method | Connector |
Indoor Unit Dimensions
The indoor unit dimensions are illustrated with front, side, and top views. The front view shows the supply air opening and various inlet ports for low voltage wiring, with knock-out holes for electrical and communication wires. The side view details the piping plate, including primary and secondary drain pipes, a control box, and filter access. The top view indicates line voltage inlets. A table provides specific measurements for the 24K, 36K, and 48K/60K models, detailing height, width, depth, and clearances for supply and return air openings.
| Dimensions | Model | 24K | 36K | 48K/60K | |||
|---|---|---|---|---|---|---|---|
| inch | mm | inch | mm | inch | mm | ||
| A | Model Height | 45 | 1143 | 49 | 1245 | 53 | 1346 |
| B | Model Width | 17-1/2 | 445 | 21 | 534 | 24-1/2 | 622 |
| C | Supply Air Opening Width | 15-5/8 | 397 | 19-1/8 | 486 | 22-5/8 | 575 |
| D | Return Air Opening Width | 15-1/8 | 384 | 18-5/8 | 473 | 22-1/8 | 562 |
| E | Model Depth | 21 | 534 | 21 | 534 | 21 | 534 |
| F | Supply Air Opening Depth | 10-1/4 | 260 | 10-1/4 | 260 | 10-1/4 | 260 |
| G | Return Air Opening Depth | 18-3/4 | 476 | 18-3/4 | 476 | 18-3/4 | 476 |
| H | Supply Air Opening Clearance | 15/16 | 24 | 15/16 | 24 | 15/16 | 24 |
| I | Return Air Opening Side Clearance | 1-1/4 | 32 | 1-1/4 | 32 | 1-1/8 | 28 |
| J | Return Air Opening Front Clearance | 1-1/2 | 38 | 1-5/8 | 41 | 1-5/8 | 41 |
| K | Return Air Opening Back Clearance | 5/8 | 16 | 5/8 | 16 | 3/4 | 19 |
Outdoor Unit Dimensions & Installation
The outdoor unit dimensions are shown from front, side, and top perspectives. The front view highlights the fan grille, a handle, and a service panel. Side views provide overall dimensions, locations for refrigerant pipe joints, and bolt pitch points for installation. Detailed views (A and B) offer specific measurements.
The outdoor unit installation diagram illustrates the unit placed on a base. Arrows indicate minimum clearance requirements: 4 inches (100mm) or more on the sides, 14 inches (350mm) or more on the rear, and 20 inches (500mm) or more from the front and sides if the unit is clear. A checkmark symbol (✔️) confirms compliance with these spatial requirements.
Fan Performance For Indoor Unit
The 'Fan Performance For Indoor Unit' is presented as a line graph. The horizontal axis (X-axis) represents External Static Pressure in inches of water column (in.w.c.), ranging from 0 to 0.8. The vertical axis (Y-axis) represents Air Flow Rate in Cubic Feet per Minute (CFM), ranging from 0 to 2000. Four distinct lines, labeled SH, L, M, and H, depict the air flow rate at different static pressures for various fan speeds. The SH setting provides the highest air flow, while the H setting provides the lowest.
Features
- Multi-position installation: horizontal (left or right), vertical (up or down)
- Aluminum Coil
- Constantly Air Flow system up to 0.80 In.W.G
- 1 inch R4.2 fiberglass free insulation reduces condensation and boosts efficiency (optional)
- Optional Auxiliary heat kit up to 25kW
- Easy Maintenance
- Multiple control options available:
- Two way communication wired controller: 120N(X6)
- Two way communication wired controller with built-in WiFi:120N(X6W)
- Wireless remote controller
- Third-Party 24V Thermostat
- Adaptive Control System
- High efficiency up to 19 SEER2, 12.5 EER2, 10.3 HSPF2
- 100% heat output at -4F*
- Chassis heater and crankcase heater equipped as standard
- *For 36K model, rated cooling capacity/heating capacity at -4F=100%
