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Installation & Owner's
Manual
PRODIRECT™ SERIES
Air Handler HAH140*C
Due to updates and constantly improving performance, the information and instructions within this
manual are subject to change without notice. Please visit www.mrcool.com/documentation to
ensure you have the latest version of this manual.
Version Date: 2-22-21
Thank you for choosing MRCOOL. Please read this manual carefully before installation and keep it for future reference.
Copyright © 2021 MRCOOL, LLC
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Table of Contents
Related Manuals for MrCool PRODIRECT Series
Summary of Contents for MrCool PRODIRECT Series
- Page 1 Please visit www.mrcool.com/documentation to ensure you have the latest version of this manual. Version Date: 2-22-21 Thank you for choosing MRCOOL. Please read this manual carefully before installation and keep it for future reference. Copyright © 2021 MRCOOL, LLC...
- Page 2 Read these instructions thoroughly before attempting installation or operation. Failure to follow these instructions may result in improper installation, adjustment, service or maintenance possibly resulting in fire, electrical shock, property damage, personal injury or death. mrcool.com...
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Page 3: Table Of Contents
12 REFRIGERANT CONNECTIONS 13 EXPANSION VALVE + PISTON 14 CONDENSATE DRAIN TUBING 15 AIR FILTER (not factory-installed) 16 FILTER INSTALLATION DIMENSIONS 17 WIRING DIAGRAM 18 ELECTRIC WIRING GAUGE 19 ELECTRIC HEAT KIT INSTALLATION (Optional) 20 TROUBLESHOOTING mrcool.com | Page 1... -
Page 4: Safety
All phases of this installation must comply with NATIONAL, STATE, AND LOCAL CODES. This manual could change without expressed written notice. Visit mrcool.com/documentation for the latest versions. 1 SAFETY This is a safety alert symbol. When you see this symbol on labels or in manuals, be alert to the potential for personal injury. - Page 5 Make sure the blower motor support is tight, which is secured by 3-motor mount bolts. Then check to see if the wheel is secured to motor shaft before operating unit. mrcool.com | Page 3...
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Page 6: General
Top and side power control wiring, and accessible screw terminals for control wiring, all combine to make the installation easy, and minimize installation cost. Please contact your local distributor (Refer to Fig.1). The appliance is only intended to supply conditioned air to one room. mrcool.com | Page 4... -
Page 7: Unit Dimensions
INDOOR UNIT 3 UNIT DIMENSIONS ELECTRICAL CONNECTIONS CAN EXIT THE TOP, OR EITHER SIDE, OF THE UNIT UNIT LENGTH Table 1 mrcool.com | Page 5... -
Page 8: Vertical Upflow
Loosen both lugs on the load side of the breaker (make sure that wires are identified and are reinstalled into 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 6... -
Page 9: Horizontal
Failure to use the drain pan can result in property damage. Conversion in Horizontal Direction: Horizontal right-hand supply can be changed to horizontal left-hand supply by removing the indoor coil and reinstalling 180 ° from the original position. mrcool.com | Page 7... - Page 10 Indoor air flow CFM(hi/mi/lo) 723/610/500 938/804/738 1204/1060/919 1376/1235/1161 1562/1385/1208 1695/1574/1434 1695/1574/1434 Indoor external InWC 0.18 0.18 0.23 0.28 0.28 0.23 0.23 static pressure Indoor air flow CFM(hi/mi/lo) 1364/1229/849 1595/1366/1256 2046/1955/1562 2340/2100/1974 2480/2430/2074 2882/2676/2437 2882/2676/2437 Table 2 mrcool.com | Page 8...
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Page 11: Electrical Wiring
• Ground lug(s) are located close to wire entrance on left side of the unit (upflow). Lug(s) may be moved to marked locations near wire entrance on right side of the unit (upflow). If alternate location is more convenient. • Use of multiple supply circuits require grounding of each circuit to lug(s) provided in unit. mrcool.com | Page 9... -
Page 12: Electrical Data
Use a brazing shield to protect the cabinet’s paint, and a wet rag to protect the rubber grommet from being damaged by torch flames. After the refrigerant connections are made, seal the gap around the connections with a pressure sensitive gasket. mrcool.com | Page 10... -
Page 13: Expansion Valve + Piston
L2 ： Warm wire length Piston (14 SEER Heat Pump) Model Piston 801600300100 One Way Valve 801600300085 One Way Valve 801600300102 One Way Valve 801600300085 One Way Valve 801600300102 One Way Valve 801600300088 One Way Valve 801600300089 One Way Valve mrcool.com | Page 11... -
Page 14: Condensate Drain Tubing
1. When making drain fitting connections to the drain pan, use a thin layer of Teflon paste, silicone, or Teflon tape and install. Hand-tighten the fittings. 2. When making drain fitting connections to drain pan, do not overtighten. Over tightening fittings can split pipe connections on the drain pan. (Continued on next page) mrcool.com | Page 12... -
Page 15: Air Filter (Not Factory-Installed)
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 13... -
Page 16: Filter Installation Dimensions
3. Clean the air filter. A vacuum cleaner or pure water may be used to clean the air filter. If the dust accumulation is too heavy, use soft a brush and mild detergent to clean it and allow it to dry out in cool place. mrcool.com | Page 14... -
Page 17: Wiring Diagram
INDOOR UNIT 17 WIRING DIAGRAMS Thermostat Wiring - 6 Conductor | 18 Guage | Low Voltage Control Wiring for A/C Systems only Control Wiring for Heat Pump Systems mrcool.com | Page 15... - Page 18 4. When connecting the air conditioner with the ground, observe the local codes. 5. If necessary, use the power fuse, circuit breaker, or the corresponding scale ampere. Applicable to 18k, 24k, 30k, 36k, 42k of 13-14 SEER Applicable to 48K of 13-14 SEER mrcool.com | Page 16...
- Page 19 CN12. Regardless of the high, medium or low wind speeds, it is only connected to CN12. Do not adjust CN13. Black = High Red = Medium Blue = Low mrcool.com | Page 17...
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Page 20: Electric Wiring Gauge
Besides, if the power wires from the unit are quite long, please choose the windings with larger cross-section area to guarantee the normal power supply. Table 5 Signal Line Signal Line Table 6 Signal Line Signal Line mrcool.com | Page 18... -
Page 21: Electric Heat Kit Installation (Optional)
PHK15H 15kW heat strip 36K/42K/48K/60K PHK20H 20kW heat strip 48K/60K IMPORTANT You must use a compatible heat kit listed in the above chart. Using an incorrect size, could cause the unit to overheat and/or cause equipment damage. mrcool.com | Page 19... -
Page 22: Troubleshooting
Is sensor in an open circuit? Error Check the sensor to see if it Replace the bad sensor is good or not? Does the sensor have a short circuit? Error Check PCB Replace PCB Is component damaged? Wet? mrcool.com | Page 20... - Page 23 Check if evaporator surface is blocked in the system Error Replace the Strainer Check to see if the Strainer is blocked Error Error Check the fan speed Check PCB Replace PCB Error Replace fan motor Check fan motor mrcool.com | Page 21...
- Page 24 PRODIRECT™ Series The design and specifications of this product and/or manual are subject to change without prior notice. Visit www.mrcool.com for the latest documentation.