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PRODIRECT™ Series
PSC Air Handler
Installation &
Owner's Manual
MODELS:
HAH018FPA
HAH024FPA
HAH036FPA
HAH048FPA
HAH060FPA
Read this manual carefully before installation and keep it where
the operator can easily find it for future reference.
Due to updates and constantly improving performance, the
information and instructions within this manual are subject to
change without notice.
Version Date: 10/01/2024
Please visit www.mrcool.com/documentation
to ensure you have the latest version of this manual.
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Table of Contents
Related Manuals for MrCool PRODIRECT HAH018FPA
Summary of Contents for MrCool PRODIRECT HAH018FPA
- Page 1 Due to updates and constantly improving performance, the information and instructions within this manual are subject to change without notice. Version Date: 10/01/2024 Please visit www.mrcool.com/documentation to ensure you have the latest version of this manual.
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Page 2: Table Of Contents
4.4 Electrical Data ....................10 4.5 Electric Kit MCA/MOP Data ................10 AIRFLOW PERFORMANCE ....................11 DUCTWORK ........................13 REFRIGERANT CONNECTIONS..................14 7.1 Condensate Drain Tubing ................. 14 AIR FILTER ........................15 WIRING DIAGRAMS ......................17 PISTON/TXV INSTALLATION ..................20 mrcool.com... -
Page 3: Safety Precautions
Failure to do so can cause electrical shock resulting in personal injury or death. 3. The unit must be permanently grounded. Failure to do so can result in electrical shock causing personal injury or death. mrcool.com... -
Page 4: Unit Overview
1/4" rise, sloping toward the drain connections. Install the indoor and outdoor unit, power supply wiring and connecting wires at least 3.5 ft. away from televisions or radios in order to prevent image interference or noise. mrcool.com... - Page 5 Be sure to use insulation that is designed for use with HVAC Systems. Condensation may form on the product during cool operation. It is also recommended to use the second drain pan and secure the unit firmly to prevent it from falling. mrcool.com...
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Page 6: Unit Dimensions
46-1/2" [1180] 19-5/8" [500] 21-5/8" [550] 18" [456] 128 [58] 54-1/2" [1385] 22" [560] 24" [610] 19-1/2" [496] 157 [71] 54-1/2" [1385] 22" [560] 24" [610] 19-1/2" [496] 157 [71] 54-1/2" [1385] 22" [560] 24" [610] 19-1/2" [496] 161 [73] mrcool.com... -
Page 7: Installation
(Make sure that wires are identified and are reinstalled into the proper breaker.) Wires are bundled with wire ties, one bundle going to the right lug and one bundle going to the left lug. mrcool.com... -
Page 8: Horizontal
Reinstall the indoor coil 180° from its original position. Ensure the retaining channel is fully engaged with the • coil rail. Secondary drain pan kits are recommended when the unit is configured for the horizontal position over a • finished ceiling and/or living space. mrcool.com... -
Page 9: Installation In An Unconditioned Space
6 mounting screws horizontal right-hand supply can be changed to a from both sides of the cabinet. horizontal left-hand supply by removing the indoor coil and reinstalling 180° from the original orientation. mrcool.com... -
Page 10: Electrical Wiring
Low voltage control wiring should be 18 AWG color- coded. For lengths longer than 100ft., 16 AWG wire should be used. • Low voltage control connections are made to low voltage pigtails extending from the top of the air handler. mrcool.com... -
Page 11: Electrical Data
Heat kit suitable for AHU 4-way installation. Heat pump systems require a specified air flow. Each ton of cooling requires between 350 and 450 cubic feet of air per • Ampacities for MCA and Fuse/breaker including the blower motor. minute (CFM), or 400 CFM nominally. mrcool.com... -
Page 12: Airflow Performance
1.54 1.51 1.49 1.45 1.42 1315 1266 1208 1146 1065 Medium Watts Current/A 1.82 1.78 1.75 1.72 1.69 1.65 1.62 1.59 1532 1478 1421 1347 1284 1184 1082 High Power/W Current/A 2.39 2.36 2.34 2.31 2.28 2.23 2.14 2.11 mrcool.com... - Page 13 1335 CFM. When used in a mobile home, workmanship. the 48K model air volume should be no less than 1584 CFM. -Air supply diffusers must be selected and located carefully. They must be mrcool.com...
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Page 14: Ductwork
Drills or sharp screw points can damage insulation on wires located inside the unit. Secure the supply and return air ductwork to the unit flanges, using proper fasteners for the type of duct used • and tape the duct-to-unit joint as required to prevent air leaks. mrcool.com... -
Page 15: Refrigerant Connections
Use 3/4" PVC piping for drain piping connections. All drain lines must be pitched downward away from • the unit a minimum of 1/8" per foot of line to ensure proper drainage. mrcool.com... -
Page 16: Air Filter
This residue could soil ceilings, walls, drapes, carpets, and other articles in the house. Soot damage may occur with filters in place, when certain types of candles, oil lamps, or standing pilots are burned. mrcool.com... - Page 17 4. Install the new filter so that the arrow on the filter is in the same direction as airflow. mrcool.com...
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Page 18: Wiring Diagrams
WIRING DIAGRAMS 9 - Wiring Diagram mrcool.com... - Page 19 M1 terminal. 4. For the 36K model, in order to make the AHRI 14.3 SEER2 system rating the fan speed must be changed from medium to high. Terminal Fan Speed Medium Blue Black High Black Blue Blue Black mrcool.com...
- Page 20 WIRING DIAGRAMS mrcool.com...
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Page 21: Piston/Txv Installation
The coil comes with a factory-installed piston metering device. Some system combinations will require a different sized piston to be field-installed. Contact MRCOOL support at 270-366-0457 to order the appropriate piston kit for your system combination. • A TXV may be required to achieve minimum efficiency ratings or for long refrigerant line set applications. Reference AHRI for system combination ratings. - Page 22 PRODIRECT™ Series PSC Air Handler The design and specifications of this product and/or manual are subject to change without prior notice. Consult with the sales agency or manufacturer for details.
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