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Classic HVPA & HVPSA M&S 8.09-1 

15700 - 27 

HVAC Equipment

PART

HVPSA36HP

HVPSA42HP

HVPSA49HP

HVPSA60HP

 Compressor, Scroll

HPA

1

10334

10345

10337

10340

HPC

2

10335

10346

10338

10341

HPD

3

10336

10355

10339

10342

 Capacitor, Scroll Compressor 

 ufd/volts

HPA

50315

40 / 370

50321

45 / 370

50321

45 / 370

50315 (Two)

40 / 370

 Compressor Plug/Cord, 80” Long

HPA

19012

19012

19012

19012

HPC/HPD

19013

19013

19013

19013

 Plug, Unloader Solenoid 

01554

01554

01554

01554

 Comfort Alert 

HPA

19014

19014

19014

19014

 Comfort Alert 

HPC/HPD

19015

19015

19015

19015

 Sound Blanket, Compressor

20063

20063

20063

20063

 Indoor Coil

60360

60340

60027

60027

 Thermal Expansion/Check Valve

20366

20366

20337

20337

 Distributor Assembly

20367

20368

Included

Included

 Coil, Evaporator, Reheat (G Option4)

60148

60148

60133

60133

 Valve, 3-Way Diverting (G Option4)

20257

20257

20257

20257

 Coil, Solenoid Valve (G Option4)

20028

20028

20028

20028

 Outdoor Coil

60370

60355

60072 (2)

60072 (2)

 Distributor, Outdoor, Heating

20119

20121

20338 (2)

20348 (2)

 Orifice, Outdoor, Heating

20064

20082

20083 (Included)

20082 (2)

 Indoor Motor, Double Shafted, 240 Volt, ECM

40081

40081

40090

40090

 Blower, L.H.

30090

30090

30090

30090

 Blower, R.H.

30092

30092

30092

30092

 Blower Wheel / Housing

10-8  DD

10-8 DD

10-8 DD

10-8 DD

 Digital Control Unit 

70363

70363

70363

70363

 Cable Assembly 

01511

01511

01511

01511

 Power Cable Assembly 

01512

01512

01512

01512

 Outdoor Motor

40098

40098

40051

40051

 (HP/RPM)

1/3  825

1/3  825

1/2  825

1/2  825

 Capacitor, Outdoor

50240

50240

50360

50360

 Fan Blade 

30135

30135

30149

30149

 Filter Drier (Reversible)

70388

70388

70428

70428

 High Pressure Control (610 Open, 420 Close)

70343

70343

70343

70343

 Loss of Charge Switch (40 Open, 60 Close)

70342

70342

70342

70342

 Accumulator (Orifice)

70330 (.040)

70330 (.040)

70340 (.055)

70340 (.055)

 Defrost Control (DFC)

20173

20173

20173

20173

 Reversing Valve, RV

20135B

20135B

20258A

20258A

 Solenoid Coil, RV

50225B

50225B

50225A

50225A

 Motor, Economizer (EPA)

40101

40101

40101

40101

 Enthalpy Control,  (EC)

70230

70230

70230

70230

 Mixed Air Relay (MAR)

50164

50164

50164

50164

 Mixed Air Sensor (MAS)

70229

70229

70229

70229

 GreenWheel Blower, Flanged, 400 CFM

50780 (2)

50780 (2)

50780 (2)

50780 (2)

 Capacitor, 4 ufd @ 370 Volts, Square

50256 (2)

50256 (2)

50256 (2)

50256 (2)

 Energy Recovery Wheel

01226

01226

01226

01226

 Motor, GreenWheel Drive

40007

40007

40007

40007

 Capacitor, 2 ufd @ 370 Volts

50326

50326

50326

50326

 Fan Speed Controller (230 Volt)

70049

70049

70049

70049

 Belting, 3/16” Round Urethane

P/80390

P/80390

P/80390

P/80390

 Contactor, Compressor, 30 Amp

HPA

50020

50020

n/a

n/a

 Contactor, Compressor, 40 Amp

HPA

n/a

n/a

50030

50030

 Contactor, Compressor, 30 Amp

HPC/HPD

50040

50040

50040

50040

 Control Board, Heat Pump,

92030

92030

92030

92030

Classic™ Heat Pump Parts List - Models HVPSA

(continued on following page)

Summary of Contents for Marvair Classic HVPA24HP

Page 1: ...rained professional HVAC service person Due to continuous product improvement use only the current issue of this manual The latest version can be downloaded from the Marvair website www marvair com Cl...

Page 2: ...EAT PUMP TABLE OF CONTENTS Chapter Description Page 1 1 General Description 3 1 2 Model Identification 4 2 1 Start up Instructions 5 2 2 Ventilation System Calibration 7 3 1 Electrical 9 4 1 Maintenan...

Page 3: ...ion systems operate when there is a call for cooling or heating or independently to provide fresh air Note that with the manual motorized fresh air vent and the power vent options if the compressor is...

Page 4: ...ering system is shown below The model identification number is on the data label The data label is at the bottom of the of left side panel IMPORTANT WHEN CLASSIC SYSTEMS ARE INSTALLED MODEL NUMBER AND...

Page 5: ...the thermostats system switch to Cool or Auto position Nothing should operate at this time 4 Set the time delay in the control box to three minutes Note that time delay is an option on some Classic u...

Page 6: ...e low enthalpy conditions causing the economizer damper to open Alternately when outdoor conditions are lower than the set point a source of heat such as a hair dryer can be directed on the air temper...

Page 7: ...sure the quantity of the return air from the room Subtract the return air from the supply air The difference is the amount of fresh air c Loosen the set screw that holds the collar onto the rod connec...

Page 8: ...entage of C A and B must equal 100 Measure the temperature of the indoor return air Multiply the temperature of the indoor air by B d Calculate what the Tmix should be with the desired quantity of out...

Page 9: ...coil the cabinet and condensate drains should be serviced as described below Also at this time the heat pump should be operated in the cooling and heating cycles as described in Chapter 3 Start Up In...

Page 10: ...itial field start up of the system Verification of proper rotation is made by observing that the suction pressure drops and the discharge pressure rises when the compressor is energized An alternate m...

Page 11: ...ssic uses a thermal expansion valve on the indoor cooling circuit and a fixed orifice on the outdoor heating circuit H Reversing Valve The reversing valve reverses the refrigerant s direction of flow...

Page 12: ...ped with an exhaust fan air speed control which controls the ventilation exhaust blower independently of the fresh air intake blower Demand Control Ventilation A field or factory installed carbon diox...

Page 13: ...k NO Voltage on Compressor Side of Contactor YES NO Run Capacitor Voltage on Line Side of Contactor Compressor Internal Overload Open NO YES Compressor Winding Open Circuit Breakers or Fuses Open Comp...

Page 14: ...door Coil Overcharge Inoperative Compressor Valves Inadequate Indoor Air Flow Recirculation of Outdoor Air Outdoor Check Valve Closed Inoperative Indoor Blower Non condensibles Restricted Indoor Meter...

Page 15: ...Metering Device Restricted Outdoor Metering Device Non condensibles Restricted Filter Drier Restriction in System Wrong Indoor Blower Rotation Reversing Valve Failure Closed Indoor Check Valve Inadeq...

Page 16: ...ately 6 to 8 from the compressor 4 Compare the suction line temperature to the saturated temperature 5 The difference between saturated temperature and suction line temperature is the superheat Superh...

Page 17: ...hours for overload to reset If still open replace the compressor Add start kit components 1 2 3 4 Insufficient cooling Improperly sized unit Improper indoor air flow Incorrect refrigerant charge Air n...

Page 18: ...er refrigerant evacuate and recharge 1 2 Gurgle or pulsing noise at expansion device or liquid line Air or non condensibles in sys tem 1 Recover refrigerant evacuate and recharge 1 Service Analyzer Ch...

Page 19: ...it wiring Located in supply air stream Differential setting too close Customer mis use Internal foreign matter Power element failure Valve too small Distributor tube tubes restricted Restricted with f...

Page 20: ...ing 1 Welding scale Nitrogen not used 1 Soldering flux Adding flux before seating copper part way 1 Excess soft solder Wrong solder material 1 Loss of Lubrication Low suction pressure Low charge Refri...

Page 21: ...charge Remove restriction in liquid line Correct the refrigerant charge Remove non condensible gases Use correct TXV Remove external equalizer line restriction Replace with correct valve Replace power...

Page 22: ...ng bulb is affected by liq uid refrigerant or refrigerant oil flowing through suction line Unequal refrigerant flow through evaporator circuits Improper superheat adjust ment only possible with TXV ha...

Page 23: ...r service centers Warranty Policy Information Agreement then fax back to 229 273 5154 Invoices will be paid in accordance with Labor Allowance Guidelines included with this PO Failure to follow these...

Page 24: ...is covered under this warranty Marvair will honor its warranty and furnish the required replacement part All costs for shipment and risk of loss during shipment of the product to Marvair and back to...

Page 25: ...Motor Double Shafted 240 Volt ECM 40087 40081 40081 40081 40090 40090 Blower L H 30050 30090 30090 30090 30090 30090 Blower R H 30055 30092 30092 30092 30092 30092 Blower Wheel Housing 9 7T DD 10 8 D...

Page 26: ...A P 50008 3 0 KVA P 50008 3 0 KVA Contactor Heat 2 Pole 30A 4 to 5 kW 50020 50020 50020 50020 50020 50020 Contactor Heat 3 Pole 40A 6 to 10 kW 50030 50030 50030 50030 50030 50030 Contactor Heat 3 Pole...

Page 27: ...3 70363 Cable Assembly 01511 01511 01511 01511 Power Cable Assembly 01512 01512 01512 01512 Outdoor Motor 40098 40098 40051 40051 HP RPM 1 3 825 1 3 825 1 2 825 1 2 825 Capacitor Outdoor 50240 50240 5...

Page 28: ...P 50007 2 0 KVA P 50008 3 0 KVA P 50008 3 0 KVA Contactor Heat 2 Pole 30A 4 to 5 kW 50020 50020 50020 50020 Contactor Heat 3 Pole 40A 6 to 10 kW 50030 50030 50030 50030 Contactor Heat 3 Pole 30A HPC...

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