Maytag Amana PMH Series Service And Troubleshooting
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Maytag Amana PMH Series Service And Troubleshooting

Package terminal air conditioner/heatpump
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Service and Troubleshooting
Standard and Remote Applications with LED M70 Controlboard
This manual is to be used by qualified, professionally
trained HVAC technicians only. Goodman does not assume
any responsibility for property damage or personal injury
due to improper service procedures or services performed
by an unqualified person.
Pride and workmanship go into every product to provide
our customers with quality products. It is possible, however,
that during its lifetime a product may require service.
Products should be serviced only by a qualified service
technician who is familiar with the safety procedures
required in the repair and who is equipped with the proper
tools, parts, testing instruments and the appropriate service
manual. REVIEW ALL SERVICE INFORMATION IN THE
APPROPRIATE SERVICE MANUAL BEFORE
BEGINNING REPAIRS.
Only personnel that have been trained to install, adjust, service or
repair(hereinafter, "service") the equipment specified in this manual
should service the equipment. The manufacturer will not be
responsible for any injury or property damage arising from improper
service or service procedures. If you service this unit, you assume
responsibility for any injury or property damage which may result. In
addition, in jurisdictions that require one or more licenses to service
the equipment specified in this manual, only licensed personnel should
servise the equipment.
Improper installation, adjustment, servicing or repair of the equipment
specified in this manual, or attempting to install, adjust, service or
repair the equipment specified in this manual without proper training
may result in product damage, property damage, personal injury or
death.
PROP 65 WARNING
FOR CALIFORNIA CONSUMERS
Cancer and Reproductive Harm -
www.P65Warnings.ca.gov
® is a registered trademark of Maytag Corporation or its related companies and is used under license to
Package Terminal Air Conditioner/HeatPump
WARNING
WARNING
©2014-2018, 2020 Goodman Company, L.P.
Goodman Company, L.P.. Houston TX, USA.. All rights reserved.
and R-410A
IMPORTANT INFORMATION . . . . . . . . . . . . . . . . . . . . 2
PRODUCT IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . 3
SYSTEM OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . 12
SCHEDULED MAINTENANCE . . . . . . . . . . . . . . . . . . . . 27
SERVICING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
CHECKING VOLTAGE . . . . . . . . . . . . . . . . . . . . . . . 39
HEATER ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . 40
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
CAPACITOR CHECK . . . . . . . . . . . . . . . . . . . . . . . . 41
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
COMPRESSOR WINDINGS . . . . . . . . . . . . . . . . . . 43
OVERLOAD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
FILTER DRIER REPLACEMENT . . . . . . . . . . . . . . . 44
REVERSING VALVE . . . . . . . . . . . . . . . . . . . . . . . . . 45
ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
WIRING DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
0140M00517-A

TABLE OF CONTENTS

RS4200005r14
June 2020

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  • Page 1: Table Of Contents

    Cancer and Reproductive Harm - RS4200005r14 www.P65Warnings.ca.gov June 2020 0140M00517-A ©2014-2018, 2020 Goodman Company, L.P. ® is a registered trademark of Maytag Corporation or its related companies and is used under license to Goodman Company, L.P.. Houston TX, USA.. All rights reserved.

  • Page 2: Important Information

    IMPORTANT INFORMATION IMPORTANT NOTICES FOR CONSUMERS SAFE REFRIGERANT HANDLING AND SERVICERS While these items will not cover every concievable RECOGNIZE SAFETY SYMBOLS, WORDS AND situation, they should serve as a usefull guide. LABELS Pride and workmanship go into every product to provide our customers with quality products.

  • Page 3: Product Identification

    PRODUCT IDENTIFICATION NOMENCLATURE AXXX 1,2,3 10,11,12,13 14,15 High-Efficiency Cooler PTAC High-Efficiency R32 Cooler PTAC Door placeholder 00 N PTC123*50AXXX PTC073*35CRXX R-410A PTC123*50CXXX PTC073*25CQRW High- -410A High-Efficiency R-32 Package Terminal Air Conditioner Model/Revision Description PT*********** AA Redesign unit with 2 fan motors and R410A refrigerant PT*********** AC 2 Speed Condenser Fan Motor PT*********** BA...
  • Page 4 SPECIFICATIONS PMC/PMH SERIES PMC073G** PMC093G** PMC123G** PMC153G** Model ¹, Voltage ¹, ³ 230 / 208 230 / 208 230 / 208 230 / 208 Capacity (BTU/h) 6,800 / 6,700 9,000 / 8,700 11,800 / 11,700 14,500 / 14,400 3.2 / 3.2 4.3 / 4.3 6.0 / 6.0 7.1 /7.1...
  • Page 5 SPECIFICATIONS PTC G SERIES 1, 7, 9, 10 Model 073G** 074G** 092G***BA* 093G*** 094G*** 123G** 124G*** 153G*** 154G*** Voltage ¹, ³ 230/208 230 / 208 230/208 230 / 208 Capacity (BTU/h) 7,000 / 7,000 7,000 9,000 9,200 / 9,000 9,100 11,900 /11,700 12,200 14,800 / 14,500...
  • Page 6 SPECIFICATIONS PTC G SERIES 1, 7, 9, 10 Model 073G**DA 093G***DA 123G**DA Voltage ¹, ³ 230/208 230 / 208 230/208 Capacity (BTU/h) 7000/7000 9,200 / 9,000 11500/11400 3.1/3.1 4.1 / 4.1 5.1/5.1 Amps 580/560 790/765 1045/1015 Watts 12/12.5 11.6 / 11.7 11.0/11.2 Unit without Electric Heater 2, 5, 11...
  • Page 7 SPECIFICATIONS HEC H SERIES 1, 7, 9, 10 Model 073H** 093H*** 123H** Voltage ¹, ³ 230/208 230 / 208 230/208 Capacity (BTU/h) 7,000/7,000 9,200 / 9,000 11,900 / 11,700 3.7 / 3.7 4.7 / 4.7 6.6 / 6.6 Amps 555 / 530 765 / 740 1,050 / 1,040 Watts...
  • Page 8 SPECIFICATIONS PTH G SERIES Model ¹, 073G** 093G** 123G** 153G** 074G** 094G** 124G** 154G** Voltage ¹, ³ 230 / 208 230 / 208 230/208 230 / 208 7,600 Capacity (BTU/h) 7,100 / 7,000 9,000 / 9,000 11,600 / 11,400 14,200 / 14,400 9,100 12,000 14,600...
  • Page 9 SPECIFICATIONS HEH H SERIES HEH073H HEH093H HEH123H HEH074H HEH094H HEH124H HEH153H HEH154H Model ¹, **AXXX **AXXX **AXXX **AXXX **AXXX **AXXX **AXXX **AXXX Voltage ¹, ³ 230 / 208 230 / 208 230 / 208 Capacity (BTU/h) 7,100 /7,000 9,000 / 9,000 11,600 / 11,400 7,700 9,100...
  • Page 10 SPECIFICATIONS PTH G SERIES Model 073G** 074G** 093G** 123G** 153G** 094G** 124G** 154G** Voltage ¹, ³ 230 / 208 230 / 208 230/208 230 / 208 6,500 / 6,400 6,800 8,200 / 8,000 10,600 /10,500 13,900 / 13,700 8,300 11,300 13,700 BTU/h 3.3 / 3.3...
  • Page 11 SPECIFICATIONS PTH G SERIES HEH H SERIES PMH & PMC SERIES Electric Nominal Heating (BTU/h) Total No. of Total Min. Circuit Voltage Heater Size Power Cord Stages Amps Ampacity² Watts (amps) @ 230V @ 208V @ 265V (kW) 230/208V 8,500 6,800 2,570 / 2,115 11.2 / 10.1...
  • Page 12 VOLTAGE REQUIREMENTS OPERATING VOLTAGES continue to run for approximately 30 seconds and then will shut off. Use a voltmeter, check the voltage at the outlet. The reading must be within the minimums and maximums Heating Mode shown below for the operating voltage. If the model is a PTC** the unit is an electric heat only unit which means the fan and electric heating element will be Operating Voltages...

  • Page 13: System Operation

    SYSTEM OPERATION of above 33 degrees. Once above 33 degrees the unit will can be avoided if the front desk terminals are closed return to heat pump operation on the next call for heat. for more than two seconds, or the mode switch is in the When the room temperature has reached the desired set off or fan only position.
  • Page 14 SYSTEM OPERATION Fan Operation AUTO with HEAT or COOL mode selected - The fan will run in low and high speed. The changes in fan speed are automatic. See “Configuration Settings” section Mode for further details. Switches Diagnostic Light The green diagnostic light located in the lower left hand corner of the touchpad and indicates operation warnings.
  • Page 15 SYSTEM OPERATION across these two terminals can be used as a front desk switch. The contact resistance of the switch, when closed, must be less than 200 ohms for the front desk feature to operate properly. Table 3 shows the maximum wire length GL W2 Y/W1 B GH IN1 COM IN2 and corresponding gage size for installation of a front desk...
  • Page 16 SYSTEM OPERATION path of foot traffic where a person might accidentally possible and as far to the right as possible in a location bump into the thermostats and damage the device. that will not interfere with the reinstallation of the PTAC 2.
  • Page 17 SYSTEM OPERATION TERMINAL BLOCK TWO JUMPERS MOVED TO “EXT POWR” Jumper Placement Jumper in position Description for external power BATTERY POWERED Mounting Sensor/Door Magnet Installation for DD01e NOTE: For battery powered, the 2 jumpers must be posi- AND dd01f Kits tioned on the center and left pins.
  • Page 18 SYSTEM OPERATION Power Connection 3. Install two (2) AA batteries (included) into the back of the thermostat. Terminals are marked “+” and “-” for polarity. Do NOT put batteries into the device until AFTER the magnet location is selected to test.WIRED Wired Magnet Wired Magnet and Powered Door Sensor Option...
  • Page 19 SYSTEM OPERATION ALIGNMENT MAGNET SLOTS GUIDES ON BOTTOM OF DD01E MAGNET HOLDER TOP VIEW CENTER OF MAGNET (IN HOLDER) INSTALL THE MAGNET IN SENSOR MUST BE 15/16” FROM THE THE CORRECT SLOT. MOUNTING PLATE SENSOR MOUNTING PLATE 15/16th” FROM BACK EDGE OF SENSOR MOUNTING PLATE Do NOT install batteries until you are ready to test the mag- TO BACK OF MAGNET.
  • Page 20 SYSTEM OPERATION CONSTRUCTION STYLE 4 Place magnet in Position A in instances when the door CONSTRUCTION STYLE 1 frame extends into the room Place magnet in Position A beyond the door. in instances when the door and frame align. Spacers (Two (2) 1/4”...
  • Page 21 SYSTEM OPERATION “02”: 1. Install batteries into DD01E or DD01F and snap sensor onto wall plate. Next to select the last two digits of the room number, 2. Close the door. Green light in lens should illuminate. Open door and green light will turn off. Repeat this step press the HEAT key until appears, then...
  • Page 22 SYSTEM OPERATION NOTE: Both the DS01E and the DD01E must be bound to the PTAC unit during the same “learn” operation. If you need to rebind one device - then you must rebind both devices during the same learn mode event. OPTIONAL SECURITY SCREWS All must be bound at one time.
  • Page 23 SYSTEM OPERATION Setback Temps - DD01E / DD01F The DD01* and the DigiSmart™ control can be pro- press the HEAT key until appears, then grammed for 3 different times to activate temperature setbacks. The current factory default temperature setbacks press the up and down arrows to select “01”: in v2.5 * software release are: 2º...
  • Page 24 SYSTEM OPERATION first unoccupied setback time. Configuration Settings 7 Button Touch Pad with Display 6. To select second unoccupied setback temperature, The control can be configured to operate a wide range of press the HEAT key until comes up. Press options.
  • Page 25 SYSTEM OPERATION CONFIGURATION SETTINGS Configuration Configuration Feature Option Code Option Code Chassis Membrane * Interface Wired Thermostat Wireless Stat & 7-Button Locked Membrane do not use ID Fan Operation do not use Button present Revert to Cyclic Always run fan (even if Off) do not use Revert to Continuous PTC (Standard Cooler)
  • Page 26 SYSTEM OPERATION Configuration Configuration Feature Option Code Option Code Smart Vent Operation On only when ID fan runs On when ID fan runs & room occupied Runs continuously On when room is occupied Economizer Economizer with compressor assist Vent Dehumid Make-up Air May be on anytime Kit Operation Allowed on except in Off mode...

  • Page 27: Scheduled Maintenance

    SCHEDULED MAINTENANCE NOTE: The compressor does not require maintenance. It is hermetically sealed, permanently lubricated. Monthly Maintenance and Cleaning Intake Air Filter To properly maintain the operational performance of your PTAC unit, it is extremely important that the inlet air filter be cleaned once per month or more often if operated in dusty or dirty locations or conditions.
  • Page 28 SCHEDULED MAINTENANCE Air Sounds rechecked. Proper leveling for most installations are a ¼ bubble tilt to the outside and level from right to left. Con- The fan cycle switch sets the operational mode of the fan tact your sales person for detailed maintenance or cleaning in the on position.
  • Page 29 REFRIGERANT SYSTEM Capillary Tube Check Valve (Open) Process Strainer Capillary Tube Discharge Line Suction Line Condenser Evaporator Suction Line Reversing Valve Compressor...

  • Page 30: Servicing

    SERVICING clean and rebraze. Refrigeration System Service For a system that has been newly repaired and does not IMPORTANT NOTE: Effective July 1,1992 before opening contain a charge, connect a cylinder of refrigerant, through any refrigerant system it is the responsibility of the service a gauge manifold, to the process tube of the compressor technician to capture the refrigerant for safe disposal.
  • Page 31 SERVICING ple gauge. See that the vacuum pump will bank-off to a Efficient operation is dependent on a balanced system. minimum of 50 microns. A high vacuum pump can only One of the most common reasons for inefficiency is the produce a good vacuum if its oil is not contaminated.
  • Page 32 SERVICING 1460 - 1575. B. Dry bulb temperature of air leaving conditioner. Ther- Since the wattage reading (1510) obtained in the test is mometer has to be located as illustrated. within the prescribed range, the total power input in watts is C.
  • Page 33 SERVICING COOLING CHANGE OF TEMPERATURE - AIR CONDITIONERS PMC073 PMC074 PMC093 PMC094 PMC123 PMC124 PMC153 PMC154 Model PTC073 PTC074 PTC093 PTC094 PTC123 PTC124 PTC153 PTC154 Temperature Temperature Temperature Temperature Temperature Temperature Temperature Temperature Temperature Across Across Across Across Across Across Across Across Room...
  • Page 34 SERVICING Digital Board Diagnostics If a failure is detected on the digital board, there will be a green light constantly lit up. This light is located under the OFF touch pad button. The board will need to enter in the Diagnostic Mode to determine failure code and procedures to follow to correct problem.
  • Page 35 SERVICING Diagnostic Status Report Mode...
  • Page 36 SERVICING Code Laymanized Cause Technical Cause Suggested Actions Alarm Switch is closed on IN1 or IN2 Normal, check switch, check (u8) & (u9) Brown out Transformer secondary < 19Vac Check outlet, check 24V board power supply Hyd coil freeze protection IDT < 35 Clean Filter, Evap, or remove blockage Indoor recirculation Clean Filter, Evap, or remove blockage...
  • Page 37 SERVICING Low Battery Batter Volt < 2.2V in any wireless device Replace Batteries DST Sensor bad DST < -20, or > 200, or open, or shorted Normal Op. w/o DigiAir Module; replace if needed Front Desk Front desk switch is closed on IN1 or IN2 Normal, open switch, check switch, check (u8) &...
  • Page 38 SERVICING System Unsatisfactory Com plaint No Heat Operating Cooling Pressures Test Method POSSIBLE CAUSE Remedy DOTS IN ANALYSIS GUIDE INDICATE "POSSIBLE CAUSE" • Pow er Failure Test Voltage • • • Blow n Fuse Im pact Fuse Size & Type •...

  • Page 39: Checking Voltage

    SERVICING Checking Voltage 1. Using a voltmeter, measure the voltage across terminals L1 and L2 of the outlet. 2. No reading - indicates open wiring, open fuse(s), no power or etc. from the unit to fused disconnect service. Repair as needed. Checking Thermostat, Wiring and Anticipator 1.

  • Page 40: Heater Assembly

    SERVICING Thermistor Resistance-Temperature Characteristic 180000 160000 140000 120000 100000 80000 60000 40000 20000 100 110 120 130 140 150 160 170 Temperature (deg F) Chart applies to black, red, blue, yellow and green wires; it does not apply to orange wires. Checking OCT Thermistor 1.

  • Page 41: Drain Pan Valve (Heat Pump Models Only)

    SERVICING Drain Pan Valve (Heat Pump Models Only) 1. Remove the chassis from the wall sleeve. 2. Remove the mounting screw and remove the drain valve. Vent The drain pan operates to remove condensate from base Control pan. This is a thermal operated device that opens at Lever 40°F and closes at 60°F.

  • Page 42: Checking Fan And Motor Blower Windings

    SERVICING Capacitor Resistance Test A. Good Condition - indicator swings to zero and slowly Remove returns to infinity. (Start capacitor with bleed resistor will Screws not return to infinity. It will still read the resistance of the resistor). B. Shorted - indicator swings to zero and stops there - replace.

  • Page 43: Compressor Windings

    SERVICING Resistance Test 1. With no power, remove the leads from the compressor terminals. 2. Touch the leads of an ohmmeter to terminals C-S, start windings and C-R, run winding. Remove Screws Ground Test With no power and compressor leads removed: Set an ohmmeter on its highest scale.

  • Page 44: Overload

    SERVICING 2. Carefully apply line voltage. A. If the compressor starts and continues run, the cause for failure is somewhere else in the system. B. If the motor fails to start - replace. Since all single phase compressors are of the permanent split capacitor design the high and low side pressure must be approximately equal or the low torque compressor may not start.

  • Page 45: Reversing Valve

    SERVICING The generally accepted materials are: NOTE: Not all installations will use these screws. • SIL-FOS (Alloy of 15% silver, 80% copper, 5% phos- phorus) is used without flux on copper to copper. DO NOT USE FOR A COPPER TO STEEL CONNECTION. Recommended heat is approximately 1400°F.
  • Page 46 SERVICING dure to reinstall the cabinet front. and powered), to provide positive pressure through the DigiAIR™ module to the inside room. Chassis The DigiAIR™ Amana brand PTAC is a 2 compressor 1. Disconnect power to the unit. system. The Amana brand R410A PTAC system is used 2.
  • Page 47 SERVICING DigiAIR™ is a factory added module to an Amana brand The DigiAIR™ fan, when the unit is properly powered and PTAC to provide for outside makeup air that is dehumidified maintained, will operate 24/7/365 to provide continuous when needed: outside makeup air, even when the compressor is not 1.
  • Page 48 SERVICING Operating instructions The DigiAIR™ power switch should be in the “ON” position to activate the module. When this switch is ON and the PTAC unit is properly powered, the fan will operate and the vent door motor will keep the DigiAIR™ vent door in the open position.
  • Page 49 SERVICING ready for the next filter check. Vent Panel 4. Clean filter with vacuum or with running water. Reverse this procedure to reinstall the filter. 5. Also inspect and clean the vent door as needed to remove material that can restrict air flow into the DigiAIR module.
  • Page 50 SERVICING LINE 1 HEATER 2 HEATER 2 LINE 2 COMPRESSOR Evaporator 1. Remove front cover. 2. Remove the two mounting screws, one on each side of the control board cover. Tilting the control panel out, disconnect ribbon connector from control board. DO NOT PULL ON RIBBON.

  • Page 51: Accessories

    ACCESSORIES Accessory Part Numbers Description Antenna DT01G Antenna Generic Radio GT01G Circuit Breaker Kit(208/230Vonly) CBK15C, CBK20C and CBK30C Condensate Drain Kit DK900D Condenser Baffle Kit DGK1B Door Sensor DD01G Duct Extention EDK02B Hard Wire kit Quick Disconnect 208/230v PTQC3A Hard Wire Kit PTPWHWK4 Hard Wire Kit Quick Disconnect 265v PTQC4A...

  • Page 52: Wiring Diagrams

    WIRING DIAGRAMS MOTOR MOTOR TR 1 TR 1 MOTOR MOTOR DANGER DANGER HIGH HIGH VOLTAGE VOLTAGE REV. REV. LINE 1 LINE 1 HEATER 1 HEATER 2 HEATER 1 HEATER 2 LINE 2 LINE 2 COMPRESSOR COMPRESSOR VALVE HIGH HIGH HIGH HIGH VALVE IN1 COM IN2...
  • Page 53 WIRING DIAGRAMS EVAP MOTOR MOTOR TO MOTOR TO MOTOR VSTM ID INPUT VSTM OD INPUT R 485 R 485 1400 1250 1200 1000 1650 1500 1350 1170 HIGH HIGH VALVE ALTERNATE ALTERNATE OUTDOOR INDOOR MOTOR MOTOR WIRING WIRING Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 54 WIRING DIAGRAMS To MC TR 1 ON/OFF DANGER HIGH SWITCH HEATER 1 HEATER 2 TR 2 OPTIONAL ALTERNATE POWER HYDRONIC VENT/DOOR HEAT To MC OPTIONAL CONDENSATE PUMP Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 55 WIRING DIAGRAMS > > > > ON/OFF SWITCH OPTIONAL DEHUMIDIFICATION Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 56 WIRING DIAGRAMS > > > > OPTIONAL OPTIONAL TRANSFER LIGHTING CONTROL To MC To MC SWITCH Daughter Board Device Switch 1 Switch 2 Switch 3 Switch 4 Switch 5 Small Vent • • • • • Power Door / Vent Transfer Fan Condensate Pump •...
  • Page 57 WIRING DIAGRAMS LEGEND for wiring diagram on following page * FOR A HEAT PUMP THERMOSTAT USED ON A STRAIGHT COOL UNIT. ** GL - LOW SPEED GH - HIGH SPEED OUTDOOR FAN MOTOR COMP COMPRESSOR DAUGHTER BOARD EVAPORATOR MOTOR FAN CAPACITOR FUSE HIGH PRESSURE SWITCH HEATER ELEMENT...
  • Page 58 WIRING DIAGRAMS MOTOR MOTOR TR 1 TR 1 MOTOR MOTOR DANGER DANGER HIGH HIGH VOLTAGE VOLTAGE REV. REV. LINE 1 LINE 1 HEATER 1 HEATER 1 HEATER 2 HEATER 2 LINE 2 LINE 2 COMPRESSOR COMPRESSOR VALVE VALVE HIGH HIGH HIGH HIGH IN1 COM IN2...
  • Page 59 WIRING DIAGRAMS TYPE A WITH SPEED TABS EVAP MOTOR MOTOR TO MOTOR TO MOTOR VSTM ID INPUT INPUT VSTM OD R 485 R 485 1400 1250 1200 1000 1650 1500 1350 1170 HIGH HIGH VALVE ALTERNATE ALTERNATE OUTDOOR INDOOR MOTOR MOTOR WIRING WIRING...
  • Page 60 WIRING DIAGRAMS ON/OFF SWITCH TR 2 OPTIONAL POWER VENT/DOOR To MC TR 1 DANGER HIGH To MC HEATER 1 HEATER 2 ALTERNATE OPTIONAL HYDRONIC CONDENSATE HEAT PUMP Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 61 WIRING DIAGRAMS > > > > ON/OFF SWITCH OPTIONAL FRESH AIR DEHUMIDIFICATION Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 62 WIRING DIAGRAMS > > > > OPTIONAL OPTIONAL TRANSFER LIGHTING CONTROL To MC To MC Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 63 Outdoor Motor Speed Selection High Speed Low Speed Model Starts With VSTM Tap VSTM Tap (Black Wire) (Red Wire) DRY093/DRY094 1350 1170 PTC173 1650 1450 HEC073/PTH073/PTH074 1350 1170 HEC093/PTH093/PTH094 1350 1170 HEC123/PTH123/PTH124 1500 1350 PTH153/PTH154 1650 1500 PM H153/PM H154 1650 1500 PTC073/PTC074...

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