Soleus Air KFHHP-22 service manual Communication failure

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When unit is in HEAT mode, after sleep mode has been set properly, the preset Tset will be increased by 1 after the sleep program has run for 1

hour, and Tset will be decreased by another 1 after 2 hours.Tset has been increased by 2 totally in two hours Then the unit will run at this temperature and at the set speed.

In Auto OR fan mode, the setting temp. will not change.

6.1.3.5 Toggle switch

1, If memory function is on, when unit is power-on and start operation and toggle switch is in STOP position, the unit will operates with STOP position; or else unit starts under power-off memory. There is memory function with AUTO,RUN,STOP position. TEST position is without memory function.

2, If there is no memory function, unit will operate under previous switch position.

When toggle switch is on AUTO, unit operates in AUTO mode, and air swing on; if there is signal of remote control, then unit operates according to signal.

When toggle switch is on TEST, indoor fan runs in high speed, and air swing on; indoor unit sends out signal of Cool mode on 16 and 30 ambient temperature to outdoor unit. If malfunction of indoor or outdoor temp. sensor is detected, buzzer will give out beep to alarm. If there is signal of remote control, unit operates as per remote control and indoor unit sends remote control signal to outdoor unit.

6.1.3.6 Communication failure

Communication failures happen if there is no correct signal received for 3 minutes

6.1.3.7 Buzzer control

When unit is power on or receiving remote control signal or the toggle switch is pressed, the buzzer will give out a beep.

6.1.3.8 Power-off memory function

1)contents of memory: mode(AUTO, COOL, DEHUMIDIFYING, HEATING, etc), setting fan speed, setting temperature, Timing etc.

2)if unit was on when power off, 3 minutes is delayed for indoor unit to send signal of starting to outdoor unit.

3)When power is on again, unit will operate in previous mode before power-off.

4)If there was no timer function in the last remote control dictation, then unit will memorize the last remote control dictation and operate according to the previous mode

5)If there was timer function in the last remote control dictation and system was power-off before the time set, unit will memorize the last timer function and it will time from the begin of restarting.

6)If there was timer function in the last remote control dictation and system was power-off at the time set, unit will operate in the mode before power-off but timer won’t be on.

6.1.3.9 Failure detect of indoor temp. sensor

When unit is defrosting, temp sensor malfunction is not under detection. In other status temp sensor malfunction of indoor ambient and tube are under malfunction. If the temperature is not between the minimum and maximum for continuous 30s, signal of error will be sent out.

When indoor temp sensor failures, it will send signal of closing down unit to outdoor unit.

6.1.3.10 Method for testing (min, med, nominal, max cooling or heating)

 

Temp. set in remote control

16

 

17

18

19

 

 

In Cool mode, press Sleep button 4

Min. cooling

Med. Cooling

Nominal cooling

Max. cooling

 

 

times in succession within 3

 

 

 

 

 

 

 

seconds

 

 

 

 

 

 

 

Temp. set in remote control

27

 

28

29

30

 

 

In Heat mode, press Sleep button 4

Min. heating

Med. heating

Nominal heating

Max. heating

 

 

times in succession within 3

 

 

 

 

 

 

 

seconds

 

 

 

 

 

 

Press any button to exit.

 

 

 

 

 

 

Cooling mode: temperature signal sent to outdoor unit is compulsively set 16

when cooling capacity is min, med, nominal or max.

Heating mode: temperature signal sent to outdoor unit is compulsively set 30

when heating capacity is min, med, nominal or max.

Notice: when test is started, relevant indicating lamp blinks quickly. If there is malfunction, it will be displayed directly

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Contents Model Remarks Introduction and featuresKFHHP-22 Specifications and technical parametersKFHHP-22-OD Outdoor unit Components name Indoor unitOverall and installation dimension of indoor unit Overall and installation dimensionNutGgggg Overall and installation dimension of outdoor unitKFHHP-22 Temperature parameters Fundamental functionOther control Communication failure Cool mode Parameters of temperatureDehumidifying mode Fan modeHigh exhausting gas temp. protection of compressor Time-delay protection of compressorCurrent protection function Overcurrent protection Defrosting processFrequency demultiplying, limitation of current control Testing of malfunction of temp. sensor and IPM overheatingCommunication failure Module protectionD11 Status of indicator in outdoor unitD17 Disassemble guide louver Disassemble filterDisassemble front case Disassemble electrical box coverDisassemble electrical box Disassemble evaporator assy Disassemble water trayDisassemble cross flow fan Disassemble motorOperating procedures /pictures Disassembly procedures for outdoor unitDisassemble housing case Disassemble motor and motor support Disassemble 4-way valveDisassemblle capillary Operating procedures/picturesIndoor unit Exploded view and components&part listComponents and part list of indoor unit KFHHP-22-OD PCB JGP011 Components and part list of outdoor unitReplace the controller Change battery TroubleshootingPage Poor cooling heating effect Improper setting of temperature Wrap and tight it again Malfunction display section Rectifying bridge, reactor, capacitance etc. is ok