background image

The voltage is too high or 

too low

Compressor  stopped 

because  of  built  in 

thermostat

Examine the voltage and ensure it is within 

the recommended range

Discharge pressure  is  too 

high 

Examine the discharge pressure and correct

The  refrigerant  in  the 

system is not enough

Examine whether there is fluorine leakage 

and repair

Filter clogging

Compressor stopped 

b e c a u s e   o f   l o w 

voltage production

Examine and change dry filter

Expansion valve failure

Adjust or change expansion valve

The  refrigerant  is  not 

enough

Fill in refrigerant

There is liquid hammer for 

liquid  refrigerant  flowing 

through  evaporator  to 

compressor

High  noise  from  the  

compressor

Adjust  liquid  supply,  examine  whether 

normal  for  the  expansion  valve  and  air 

suction.

Over  current  relay  is 

tripped

Compressor  can  not 

start

Set the control circuit in manual mode and 

restart the compressor 

The  control  circuit  is  not 

connected

Examine control system

The  pressure  is  too  low, 

which can not conduct the 

pressure switch

No current flow

Examine power supply

The contactor coil is burnt

out

Examine whether the refrigerant is less and 

refill

Water system failure, relay 

is tripped

Reconnect and adjust the wiring

18

Содержание SPS-190

Страница 1: ...Heat Pumps...

Страница 2: ......

Страница 3: ...Maintenance 15 6 TROUBLE SHOOTING 16 7 TERMS OF WARRANTY 19 Davis Shirtliff Ltd 2022 Contents herein are not warranted 4 2 Installation Base for the Heat Pump 5 4 3 Installation of the Pipeline 5 4 1...

Страница 4: ...ed in line on the filter return to pool pipe and include an integral controller and a durable housing suitable for outdoor installation Particular features include Low energy consumption for low runni...

Страница 5: ...ARNINGS The installation shall be done by professional person to prevent leaking electric shock or re disaster WARNING Ensure ground connection is properly done else may cause electric shock WARNING W...

Страница 6: ...s it may cause electric shock or re WARNING The installation base must be strong enough to support the weight else may damage the equipment WARNING Before cleaning the unit the operation should be sto...

Страница 7: ...under flow condition Controller with connecting line Water flow switch 4 5 Certificate of approval Warranty Card Proof of product quality Warranty Certificate 4 INSTALLATION Fig 1 Vertical obstacle d...

Страница 8: ...installation base during construction 5 Include shock absorbers on the base surface to prevent vibration 4 3 Installation of the Pipeline 1 Prevent air dust and other debris from going into the water...

Страница 9: ...ller Controller Controller Swimming Pool Drain Side Main Unit Auxili ary unit Auxili ary unit Water Pump Power Line Dedicate Pump for Swimming Pool Wash outlet Fig 5 Multiple Pumps Layout The non retu...

Страница 10: ...be connected to the swimming pool directly A water ltration unit must be installed before water goes into the heat pump minimum size about 40mic WARNING The circulation pump should be correctly sized...

Страница 11: ...w on the switch The terminal block should be easily accessed for maintenance The unit should use a dedicated power supply with correctly rated voltage Power line and signal line layout should be neat...

Страница 12: ...e in the outlet pipe line of the water pump The screen lter must be installed before the input of the water pump and the dirt cleaned out whenever pressure drop gauge noted NOTE The electric auxiliary...

Страница 13: ...s any key to turn on the light Power On Off If on standby mode press key to turn on the controller If on power on mode press key to turn off the controller Mode Change If under the power on mode press...

Страница 14: ...right corner of the screen 1 will be displayed which means the first time period setting has started 3 Press again to enter the power setting required 4 Press or to set hour parameter 5 Then press to...

Страница 15: ...start again Water Flow Switch Protection for water cycling system Start the system and run the circulating water pump if water flow switch is disconnected the compressor and outer blower will stop wo...

Страница 16: ...re perfect insulation Ensure correct earthing of the heat pump Ensure correct supply voltage to meet the requirement of rated voltage Air inlet and outlet functions Electrical leakage protector works...

Страница 17: ...ater usually once per month If there is too much dirt a paintbrush dipped gasoline may used to clean After long downtime the following should be done before restart examine and clean the equipment car...

Страница 18: ...free from gasoline ethyl alcohol and other flammable materials If malfunction occurs it should be attended by a qualified person who will find cause and eliminate it before restarting unit Never boot...

Страница 19: ...oil Discharge pressure too low Suction pressure is too low Examine and adjust the expansion valve making sure temperature sensor is close connected with the air suction pipe and well insulated Refer t...

Страница 20: ...efrigerant The voltage is too high or too low Compressor stopped because of motor overloading The voltage should be controlled within more or less 20V than rated voltage and phase difference within 30...

Страница 21: ...e refrigerant is not enough Fill in refrigerant There is liquid hammer for liquid refrigerant flowing through evaporator to compressor High noise from the compressor Adjust liquid supply examine wheth...

Страница 22: ...warranty condition or liability implied by law the liability of Davis Shirtliff hereafter called the Company in respect of any defect or failure of equipment supplied is limited to making good by repl...

Страница 23: ......

Страница 24: ...INSXXXA 00 22...

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