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Heat Controller VMH C Series, Руководство по обслуживанию

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34

Service Manual 

VMH 30, 36 SerieS

 

Heat Controller

 

 

32 

9.2 Diagnosis and Solution 

9.2.1 EEPROM parameter error diagnosis and solution 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Replace indoor PCB

 

Shut off the power supply and turn 

on

 5 seconds 

later

. Does it run?

The problem comes out again 

Is the EEPROM chip plugged in indoor PCB well? 

No 

Correct the connection 

Replace the main PCB of indoor unit 

Yes

Yes

No

Содержание VMH C Series

Страница 1: ...Heat Controller 1900 Wellworth Ave Jackson MI 49203 517 787 2100 www heatcontroller com SERVICE MANUAL Inverter Single Zone Ductless Mini Split Heat Pump VMH Series Version C VMH30SC 1 VMH36SC 1...

Страница 2: ...2 Outdoor Unit 14 6 Installation Details 15 6 1 Wrench torque sheet for installation 15 6 2 Power Wiring 15 6 3 Pipe length and elevation 16 6 4 Pressure test and evacuation 17 7 Operation characteri...

Страница 3: ...r an authorized service center Do not disassemble or repair the product there is a risk of fire or electric shock n Always ground the product There is a risk of fire or electric shock n Install the pa...

Страница 4: ...to ensure that the power cable can not be pulled out or damaged during operation There is a risk of fire or electric shock n Do not place anything on the power cable There is a risk of fire or electri...

Страница 5: ...ain power off when cleaning or maintaining this product There is risk of electric shock n When this product is not used for a long time disconnect the power supply or turn off the breaker There is ris...

Страница 6: ...the inlet or outlet of air flow It may cause product failure n Use a soft cloth to clean Do not use harsh detergents solvents etc There is a risk of fire electric shock or damage to the plastic parts...

Страница 7: ...type Do not mix old and new batteries or different types of batteries There is risk of fire or explosion n Do not recharge or disassemble the batteries Do not dispose of batteries in a fire They may b...

Страница 8: ...nd high med low auto Restarting after for approx 3 minutes to protect the compressor Prevents the water from freezing on evaporator by sensing the evaporator pipe temperature in cooling mode Indoor un...

Страница 9: ...r from dripping The unit has 3 minute delay between ON OFF operations Outdoor unit Power relay control Valve protection cover Low noise air flow system Propeller fan makes the outdoor unit run more qu...

Страница 10: ...10 Service Manual VMH 30 36 Series Heat Controller 3 Dimension 3 1 Indoor Unit Model W in mm D in mm H in mm B VMH30SC 1 56 9 1445 8 9 277 13 4 340 B VMH36SC 1...

Страница 11: ...ies Service Manual 3 2 Outdoor Unit Dimension Mode W in mm D in mm H in mm W1 in mm A in mm B in mm A VMH30SC 1 35 4 900 12 4 315 33 9 860 38 9 980 23 2 590 13 1 333 A VMH36SC 1 39 0 990 13 6 345 38 0...

Страница 12: ...efrigerant Cycle Diagram INDOOR OUTDOOR LIQUID SIDE GAS SIDE HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER COMPRESSOR 2 WAY VALVE 3 WAY VALVE CHECK VALVE Heating Model only CAPILIARY TUBE REVERSING...

Страница 13: ...13 Heat Controller VMH 30 36 Series Service Manual...

Страница 14: ...14 Service Manual VMH 30 36 Series Heat Controller 5 2 Outdoor Unit A VMH30SC 1 A VMH36SC 1...

Страница 15: ...00 6 2 Power wiring connecting cables Power Wiring Consult local building codes NEC National Electric Code or CEC Canadian Electric Code for special requirements Connecting Cables Voltage drop on the...

Страница 16: ...charge on rating plate includes enough refrigerant for 16 5 ft 5m of line set The capacity is based on standard length and the maximum permissive length is based on the system reliability Oil trap sh...

Страница 17: ...nifold gauge low side hose to low side service valve 2 Connect the manifold gauge charge hose to the vacuum pump 3 Fully open the low side of manifold gauge 4 Start vacuum pump 5 Evacuate using either...

Страница 18: ...oes occur place the vertical air louver to it s maximum angle vertically to the floor and set the fan to high speed 16 2 Deep Vacuum Method The deep vacuum method requires a vacuum pump capable of pul...

Страница 19: ...his indicator illuminates when TIMER is set ON OFF PRE DEF Indicator This indicator illuminates when the air conditioner starts defrosting automatically or when the warm air control feature is activat...

Страница 20: ...emp raises the running frequency will be limited as follow When compressor discharge temp T5 239 F 115 C for 5 seconds compressor stops 226 F 108 C T5 239 F 115 C decrease the frequency every 3 minute...

Страница 21: ...Preheating release condition If T4 41 F 5 C or the compressor starts running preheating function will stop Heating cable Starts when T4 41 F 5 C and stops when T4 59 F 15 C 8 4 Operation Modes and Fun...

Страница 22: ...the following rule If users switch on AC by remote controller the compressor will run at the Fmax frequency for 7 minutes according to outdoor ambient temp During the 7 minutes frequency limitation i...

Страница 23: ...Runs at F1 for 1hour If T1 TS 35 F 2 C the compressor will stop Meanwhile the compressor running frequency is limited by the current Off Compressor stop Decrease Decrease the running frequency to the...

Страница 24: ...r will keep running at the current frequency When T3 125 5 F 52 C the compressor will not limit the frequency and resume to the former frequency When T3 140 F 60 C for 5 seconds the compressor will st...

Страница 25: ...r ambient temp During the 7 minutes frequency limitation is available 7 minutes later compressor running frequency will be controlled as below 5 0 4 5 3 5 3 0 2 5 2 0 1 5 1 0 H G H F E D C B A 0 5 Whi...

Страница 26: ...to F1 H Run at F1 for 1hour If T1 TS T 43 F 6 C the compressor will stop Meanwhile the compressor running frequency is limited by the current Off Compressor stop Decrease Running frequency decrease t...

Страница 27: ...the machine runs in rating capacity test mode indoor fan runs with rating speed and anti cold wind is disabled Indoor fan speed can be set on high medium low or auto models but the anti cold wind fun...

Страница 28: ...re than 9 F 5 C it enter the defrosting mode Condition 3 No matter what value T4 is if the machine runs with T3 37 5 F 3 C for more than 120 minutes and T3 keeps lower than 25 F 4 C for more than 3 mi...

Страница 29: ...en T2 118 5 F 48 C 8 4 4 Drying mode 8 4 4 1 Indoor fan speed is fixed at breeze and can t be changed The louver angle is the same as cooling mode 8 4 4 2 Compressor running rules 2 0 1 5 1 0 F3 F2 F1...

Страница 30: ...e controller to any other mode 8 4 6 2 When the machine is off pressing the touch button will carry the machine to forced auto mode Pressing the button once again within 5 seconds Will switch unto to...

Страница 31: ...0 C every one hour 2 hours later the setting temperature stops rising and indoor fan is fixed at low speed 8 4 8 3 Timer setting is available 8 4 8 4 When user uses timer off function in sleep mode or...

Страница 32: ...button to activate the function Press it again to stop the function During the time when Ionizer is controlled by remote controller Ionizer will be turned off automatically if indoor fan stops running...

Страница 33: ...oor fan speed has been out of control O O E5 Open or short circuit of outdoor temperature sensor X O X E6 Open or short circuit of room or evaporator temperature sensor O O O E7 Outdoor fan has been s...

Страница 34: ...2 1 EEPROM parameter error diagnosis and solution Replace indoor PCB Shut off the power supply and turn on 5 seconds later Does it run The problem comes out again Is the EEPROM chip plugged in indoor...

Страница 35: ...nd Indoor PCB connected properly Is all the wiring to the Outdoor PCB connected correctly Possible electromagnetic interference Reconnect and retest Reconnect and retest Yes 24V Vs 24V DC Vs is the vo...

Страница 36: ...he sensor and check if the errors happen again Is the fan motor connector and connection good The unit does not work normally Turn off the unit rotate the cross fan Does it rotate freely No Disassembl...

Страница 37: ...osis and solution Is the power supply good Replace the outdoor electrical box Make sure the power supply is normal Yes No Yes Fastening the IPM to the radiator No Check whether the connections between...

Страница 38: ...otector normal No No Is the connection good There is a blockage Such as capillary or welded points of the pipes Is refrigerant circulation volume normal Replace it Reconnect it Does compressor operate...

Страница 39: ...39 Heat Controller VMH 30 36 Series Service Manual...

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