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RVP 6536 SERIES, Руководство по обслуживанию

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19.  SERVICE PROBLEMS AND POSSIBLE SOLUTIONS

COOLING MODE

Problems

1.

Nothing Runs - Cooling Mode

2.

IDFM Runs, No Compressor, No ODFM

3.

IDFM Runs, ODFM Runs, No Compressor

4.

IDFM Runs, Compressor Runs, No ODFM

5.

Compressor Runs, ODFM Runs, No IDFM

6.

Compressor, ODFM, IDFM Runs, Insufficient
Cooling

7.

Compressor, ODFM, IDFM Runs, Unit Is Heating
While In Cool Mode

Possible Solutions

No A/C Voltage, No 12 VDC, Thermostat, Wiring, P.C.
Board

Cooling Freeze Thermister - (Insufficient Indoor Air Flow),
Thermostat, Wiring, Compressor, Contactor, P.C. Board

Insufficient Voltage To Unit, Run Capacitor, Start Device,
Overload, Wiring, Compressor

Run Capacitor, Fan Motor, P.C. Board, Wiring

Thermostat, Run Capacitor, Wiring, Fan Motor, P.C. Board

Air Flow Restriction, High Ambient Temperature,
Undersized Refrigeration System, Very Little Or No
Refrigerant Charge, Compressor

Thermostat, Wiring, P.C. Board, Reversing Valve

HEATING MODE

Problems

1.

Nothing Runs - Heat Mode

2.

IDFM Runs, No Compressor, No ODFM

3.

IDFM Runs, ODFM Runs, No Compressor

4.

IDFM Runs, Compressor Runs, No ODFM

5.

Compressor Runs, ODFM Runs, No IDFM

6.

Compressor Runs, ODFM Runs, IDFM Runs,
Insufficient Heating

7.

Compressor, ODFM, IDFM, Unit Is Cooling While
In Heat Mode

Possible Solutions

No A/C Voltage, No 12 VDC, Thermostat, Sub-base, Wiring,
P.C. Board

Heating Freeze Thermister, Low Outdoor Ambient
Conditions,  Wiring, Compressor, Contactor, P.C. Board

Insufficient Voltage To Unit, Run Capacitor, Start Device,
Overload, Wiring, Compressor

Run Capacitor, Fan Motor, Wiring, P.C. Board

Run Capacitor, Fan Motor, Wiring, P.C. Board

Air Flow Restriction, Low Ambient Temperature, Undersized
Refrigeration System, Very Little Or No Refrigerant Charge,
Compressors

Wiring, P.C. Board, Reversing Valve

Содержание 6536 SERIES

Страница 1: ...SERVICE MANUAL FOR 6536 SERIES PACKAGED HEAT PUMPS...

Страница 2: ...d by some states to be licensed PERSONS NOT QUALIFIED SHALL NOT INSTALL NOR SERVICE THIS EQUIPMENT NOTE The words Shall or Must indicate a requirement which is essential to satisfactory and safe produ...

Страница 3: ...UNIT DIMENSIONS AND SPECIFICATIONS PACKAGE AIR CONDITIONER MODEL NUMBER BREAKDOWN FOLLOWS 6 5 3 6 8 9 1 Model Series Revision Letter 6 Panasonic Compressor s 7 Sanyo Compressor s 8 Tecumseh Compresso...

Страница 4: ...4 4 UNIT SPECIFICATIONS AND IDENTIFICATION...

Страница 5: ...E 1 Indoor Condensate Drain Do Not Block Outdoor Air Exit Do Not Block View From Bottom Of Pan FIGURE 2 Provide Support In Cross Hatched Areas Shown Compressor Cabinet Door FIGURE 3 5 UNIT DEPICTION F...

Страница 6: ...ate drainage off the roof to below the floor of the vehicle The heat pump contains a dual compressor system It combines the capacity of two roof mounted units into one highly efficient and compact pac...

Страница 7: ...tage cooling until room temperature rises 2 degrees above the 1st stage starting temperature Once the thermostat calls for 2nd stage cooling a 30 second delay is incurred to prevent both stages from s...

Страница 8: ...s room temperature The cooling system fan operates continuously at high speed No other components or systems are operating HEATING Move the system switch to HEAT The display will indicate room tempera...

Страница 9: ...8 PACKAGED AIR CONDITIONER BLOWER PERFORMANCE DATA TEST CONDITION 115 VAC 60 HZ 1 PHASE DRY COIL CHART 1 9 INDOOR BLOWER MOTOR REMOVAL 1 Remove indoor blower access panel 2 Disconnect wiring from moto...

Страница 10: ...roll in orientation shown Section 2 Torque nut to 65 in lbs min Section 3 Ground wire terminal assemblies between screw head and washer Section 4 Motor rotation wires to be connected Yellow to Yellow...

Страница 11: ...ect wiring from motor terminal block 3 Remove scroll motor assembly from the unit 4 If at this point only the blower wheel needs replaced then remove 4 screws from inboard venturi Remove and replace b...

Страница 12: ...FIGURE 9 BOTTOM VIEW 1 Wheel must be mounted with a minimum of 1 4 clearance to both venturis 2 Apply grease to motor shaft before assembling wheel 3 Torque set screw on flat of shaft to 110 10 in lb...

Страница 13: ...Bracket SIDE VIEWS 1 Position motor with terminal block opposite motor mount clamp 2 Torque nut to 65 in lbs min 3 Ground wire terminal assembles between screw head and washer Wrap wire around motor...

Страница 14: ...Remove clamps holding restrictor in place See 17 Figure 12 6 Unbraze by flow restrictor from points 16 Make note of plumbing locations for new restrictor Must be installed in same manner Note to prot...

Страница 15: ...5 Unbraze refrigerant from points See 1 and 5 Figure 12 Protect wiring and insulation from torch flame 6 Remove screws See 7 8 9 Figure 12 Evaporator coil can now be removed Note Upon reassembly the r...

Страница 16: ...e from system systems being serviced 4 Remove terminal caps See 13 Figure 12 5 Remove wiring from compressor terminal block cut wire ties on suction line 6 Remove reversing valve clamp from compressor...

Страница 17: ...hermostat Assembly 12 VDC Thermostat plug positions on the p c board If no voltage is detected at the p c board connector check for voltage at the thermostat Note All functions of this heat pump are s...

Страница 18: ...18 17 WIRING DIAGRAM 6536 Series Packaged Heat Pump 2 Compressor...

Страница 19: ...19 18 WIREBOX COMPONENT CHECKOUT...

Страница 20: ...perature Undersized Refrigeration System Very Little Or No Refrigerant Charge Compressor Thermostat Wiring P C Board Reversing Valve HEATING MODE Problems 1 Nothing Runs Heat Mode 2 IDFM Runs No Compr...

Страница 21: ...B Serious thermostat or p c board damage may occur To use these flow charts start at the top left corner Using a volt ohm meter check what is indicated in that box If the answer to what is indicated i...

Страница 22: ...Refer to Indoor High Checkout Cool Mode High Low Comp 2 Refer to 2 Operation Cool Mode O D Blower High O D Blower High L E D Comp 1 O D Blower Low L E D O D Blower Low Refer to Outdoor Blower High NO...

Страница 23: ...Board See Figure 14 N O N O L I G H T If Green L E D Will Still Not Remain On After Coil Temperature Is OK Check Thermister For Continuity Caution It May Have A Very High Resistance Replace Thermiste...

Страница 24: ...Check All Pin Connectors And Connections From Thermostat Replace Lifeline If Necessary O K NO 115 VAC To N O Contact Relay 3 And T5 On P C Board See Figure 13 O K NO Replace P C Board Check Wiring To...

Страница 25: ...And Connection From Thermostat Replace Lifeline If Necessary 115 VAC To N O Contact On Relay 4 And T5 On P C Board See Figure 13 NO O K NO NO O K NO O K O K NO Replace P C Board O K Check Wiring To Mo...

Страница 26: ...f Relay If Welded Check Compressor 1 Relay Operation NO O K Reconnect Wires Or Replace Components As Necessary Check Compressor 1 Start Device Check For Proper Wiring To Compressor Check Compressor Ru...

Страница 27: ...All Pin Terminals And Connections From Thermostat Replace Lifeline If Necessary NO O K O K Check Compressor 2 Relay Operation Replace Relay If 12 VDC Is Present And Relay Won t Close Or If Relay Is W...

Страница 28: ...28 CHECKOUT OUTDOOR BLOWER LOW SPEED HEATING AND COOLING MODES...

Страница 29: ...L1 Line Power From Compressor 2 Relay Refer To Compressor 2 Checkout NO O K 115 VAC To T12 T13 On P C Board Replace P C Board NO O K Check Wiring To O D Blower Check Capacitor Check Motor For Open Or...

Страница 30: ...N O Compressor 1 N O Refer To O D Blower Low Checkout Refer To Reversing Valve Checkout Refer To Compressor 1 Checkout Heat Mode 30 Second Delay On Make And Compressor 2 Is Energized O D Blower Low S...

Страница 31: ...ll Not Remain On After Coil Temperature Is OK Check Thermister For Continuity Caution It May Have A Very High Resistance Replace Thermister If Open Check 12 VDC To Pin Connectors R B On P C Board See...

Страница 32: ...onnectors And Connectors From Thermostat Replace Lifeline If Necessary NO NO NO O K 115 VAC To N O Contact On Relay 4 And T5 On P C Board See Figure 14 NO Replace P C Board O K Check Wiring To Motor C...

Страница 33: ...Unit N O Check For 12 VDC Between W White B Blue Wires On The Thermostat YES Replace Sub base N O Check For 12 VDC Between R Red B Blue Wires On the Thermostat Y E S N O Restore 12 VDC To The Thermos...

Страница 34: ...34 HEAT PUMP COMPRESSOR 2 CHECKOUT HEAT MODE Note All Operating Functions Subject To Thermostat And P C Board Time Delays Sub base Must Be In Electric Mode...

Страница 35: ...stat And P C Board Time Delays Note If Compressor And Fan Motors Not Running Refer To Proper Checkouts Once The Reversing Valve Has Energized The P C Board Locks The Valve Into An Energized Position U...

Страница 36: ...RV Products A Division of Airxcel Inc P O Box 4020 Wichita KS 67204 1976A281 1 00 PP...

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