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Owner’s Manual 

33

ENGLISH

Using Thermostat

Using Thermostat

Supported Thermostat Specification

Installing and Wiring Thermostat

1. NEVER USE 230V AC Thermostat and 24V AC Thermostat at the same time. If used

together, it causes short-circuit   and yields power cut-off by circuit breaker.

2. Some electro-mechanical type thermostat has internal delay time to protect compressor. In

that case, mode change   can takes time more than user's expectation. Please read
thermostat manual carefully if the product does not response  quickly.

3. Setting temperature range by thermostat  can be different with that of the product. The

heating or cooling set temperature  should be chosen within the setting temperature range of
the product. 

supports following thermostats.

CAUTION

The term "thermostat", which is widely used in this chapter,  is a kind of 3rd party accessory. 
LG Electronics does not  supply thermostat and it should be supplied 3rd party  manufacturers.
Room thermostat can be used for easy and convenience control. To utilize thermostat more
efficiently and correctly, this chapter presents information about using thermostat.

(1) : There is no electric circuit inside the thermostat and electric power supply to the thermostat is

not required.

(2) : Electric circuit such as display, LED, buzzer, etc is included in the thermostat and electric power

supply is required.

(3) : Thermostat generates ‘Heating ON or Heating OFF’ signal according to user’s heating target

temperature.

(4) : Thermostat generates both ‘Heating ON or Heating OFF’ and ‘Cooling ON or Cooling OFF’

signal according to user’s heating and cooling target temperature.

Please refer  ‘Conditions if Accessories are Installed’ of Chapter 4 and ‘Thermostat’ of Chapter 7 of      

Installation Manual. 

Yes

Heating / Cooling (4)

Yes

Heating / Cooling (4)

Yes

Heating / Cooling (4)

Yes

Heating / Cooling (4)

Yes

Heating Only (3)

24 V AC

Yes

Heating Only (3)

24 V AC

Yes

Heating Only (3)

230 V AC

Electrical

(2)

Yes

Heating Only (3)

230 V AC

Mechanical

(1)

Supported

Operating Mode

Power

Type

Summary of Contents for AHNW096A0

Page 1: ...re installing and operating your Air to Water Heat Pump Please retain this owner s manual for future reference after reading it thoroughly Owner s Manual Dear Owner Thank you for installing LG Air to Water Heat Pump Your best choice guarantees you a great performance and service to make your life comfortable pleasant FRANÇAIS ...

Page 2: ...wers to common problems in the chart of troubleshooting tips If you review our chart of Troubleshooting Tips first you may not need to call for service at all PRECAUTION Contact the authorized service technician for repair or maintenance of this unit Contact the installer for installation of this unit AWHP is not intended for use by young children or invalids without supervision Young children sho...

Page 3: ...shock Do not modify or extend the power cable If the power cable or cord has scratches or skin peeled off or deteriorated then it must be replaced There is risk of fire or electric shock For installation removal or reinstall always contact the dealer or an Authorized Service Center There is risk of fire electric shock explosion or injury Do not install the product on a defective installation stand...

Page 4: ... shock or fire Ventilate the product room from time to time when operating it together with a stove or heating element etc Oxygen deficiency can occur and hence harm your health Turn the main power off when cleaning or repairing the product There is risk of electric shock Take care to ensure that nobody especially kids could step on or fall onto the outdoor unit This could result in personal injur...

Page 5: ...t step on or put anyting on the product outdoor units There is risk of personal injury and failure of product Do not insert hands or other objects through the air inlet or outlet while the product is operating There are sharp and moving parts that could cause personal injury Be cautious when unpacking and installing the product Sharp edges could cause injury If the refrigerant gas leaks during the...

Page 6: ... Indoor unit 2 Outdoor unit 3 Refrigerant pipe and connecting cable 4 Water pipe 5 Ground wire to ground outdoor unit to prevent electrical shocks The shape of products can be chaged according to the model capacity and type 1 2 5 4 3 Water Inlet Water Outlet Typical Installation Scene ...

Page 7: ... 11 12 13 1 Display panel 2 Change temperature button 3 Silent mode On Off button 4 Operation mode selection button 5 Water heating Enable Disable button 6 ESC button 7 Direction button Up Down Left Right 8 Power button 9 Function setting button 10 Temperature setting mode button 11 Temperature view mode button 12 Programming button 13 Set Clear button ...

Page 8: ...olar thermal pump is installed Water Pump This icon indicates that the water pump inside the indoor unit is active Sanitary Water Tank heater This icon indicates that sanitary water tank electric heater which is located inside sanitary water tank is active The icon is not used when sanitary water tank is not installed Electric Heater STEP ONE Electric Heater STEP TWO These icons indicate that the ...

Page 9: ...maintaining the temperature to prevent damage by freezing of water pipe Defrosting This icon indicates that the defrost mode is active In space heating operation or sanitary water tank heating operation freezing of the outdoor heat exchanger may be occured due to low outdoor temperature and humidity If this risk occurs the product goes into defrost operation It reverses the cycle and takes heat fr...

Page 10: ...Heavy trouble This icon indicates that heavy trouble is occurred Slight trouble This icon indicates that slight trouble is occurred Thermostat This icon indicates connection with thermostat Central Controller This icon indicates that the product is controlled by the central controller ...

Page 11: ...e product and select operation mode Operation Mode Cooling Operation The product yields cool water to use in under floor cooling or FCU cooling Heating Operation The product yields hot water to use in under floor heating or FCU heating Weather dependent Heating Operation In this mode heating setpoint is automatically determined by pre defined temperature profile For more detail please refer descri...

Page 12: ...Room Temperature and Sanitary Water Tank Temperature mode could be selected when Remote Air Sensor and Sanitary Water Tank Kit are installed 2 Room Temperature Leaving Water Temperature Sanitary Water Tank Temperature You can set the proper temperature each mode Note Decrease 1 C or 2 F per one time pressing Increase 1 C or 2 F per one time pressing We can change the temperature range of each mode...

Page 13: ... operation icon Ex1 Setting Temperature as 18 C on Leaving Water Temperature Ex1 Setting Temperature as 20 C on Room Temperature Please refer to the manual of product In this mode cooling operation is activated to achieve the temperature set point Note Decrease 1 C or 2 F per one time pressing Increase 1 C or 2 F per one time pressing We can change the temperature range of each mode on installatio...

Page 14: ...d temperature by pressing Change Temperature buttons 3 Press Mode Selection Button to select Heating operation mode 2 Heating operation icon Ex Setting Temperature as 30 C on Room Temperature Ex Setting Temperature as 55 C on Leaving Water Temperature In this mode heating operation is activated to achieve the temperature set point ...

Page 15: ...Cold Hot This mode is only applied to heating In order to save energy and to give highest comfort setting temperature will follow outside temperature If outdoor temperature decreases heating capacity for the house will increase automatically in order to keep same room temperature All parameters will be set by installer during start up procedure and will be adapted to the site characteristic Value ...

Page 16: ... be displayed during 5seconds 2 View Room Temperature View Inlet Temperature View Outlet Temperature View Sanitary Water Temperature ONLY displayed when sanitary water heating mode View Solar Power Temperature ONLY displayed when sanitary water heating mode Temperature Temperature Range Displayed as below 11 Lo Air 11 39 actual temperature above 39 Hi below 0 Lo Water 0 92 actual temperature above...

Page 17: ...ating Disable Sanitary Water Heating enable Sanitary Water Heating ON 1 Sanitary water heating operation is operating only on enable condition During operation segment will be on 2 Note This function is not used when the sanitary water tank is not installed If you want to know more information refer function code 15 26 29 on installation information section ...

Page 18: ...duced capacity so that the noise produced by the outdoor unit drops This implies that the indoor heating and cooling capacity will also drop Beware of this when a certain level of heating or cooling is required indoors Silent mode operation may not work while the product is proceeding higher priority operation such as defrost operation anti freezing operation and etc When this mode is not operated...

Page 19: ...gment will be disappear 2 During Child Lock icon and CL will be displayed during 3 seconds whenever entering any kind of buttons except for view temperature button and setting clear button 3 To release this setting pressing function Setting button until icon flash and then enter setting clear button 4 This function is to prevent children or other people from using controller Child Lock ...

Page 20: ...e emergency mode operation is performed by electric heater located in the indoor unit Heavy trouble A problem is found inside the indoor unit In most case this trouble is concerned with sensor problems The outdoor unit is operating under emergency mode operation condition which is configured by DIP switch No 4 of the indoor unit PCB Display Slight trouble Display When the error is occurred on indo...

Page 21: ...PM 10 20 1 Press left right button to adjust the current day 2 Press down button to move to AM PM part and adjust it The AM PM segment will be flashed 3 Press right button to move to Hour part the Hour segment will be flashed 4 Press up down button to adjust the Hour 5 You can set current time Setting Current Time Note The current time have set as 12 00 initially ...

Page 22: ...right button to move to Minute part the Minute segment will be flashed 6 Press up down button to adjust the Minutes 7 If you finish the setting press set clear button 8 Press exit button to exit or system will automatically release without any input after 25 seconds 9 ...

Page 23: ...ress programming button to enter the Programming mode the segment flashing Ex Setting Simple Reservation time as 3 hours 1 Press up down button to adjust the reservation time 2 If you finish the setting press setting cancel button to complete programming 3 Press exit button to exit or system will automatically release without any input after 25 seconds 4 ...

Page 24: ...p reservation the segment flashing 1 Press up down button to adjust the reservation time 2 If you finish the setting press setting cancel button to complete programming 3 Press exit button to exit or system will automatically release without any input after 25 seconds 4 Ex Setting Simple Reservation time as 3 hours You can easily turn off sleep reservation ONLY enable when unit is operating ...

Page 25: ...g mode Repeat pressing button to select on reservation the segment flashing 1 Press up down button to adjust AM PM 2 Press right button to move to Hour part the Hour segment will be flashed 3 Press up down button to adjust the Hour 4 Ex Setting On Reservation time as PM 10 20 This function is able to turn on after a setting time ...

Page 26: ...the Minute segment will be flashed 5 Press up down button to adjust the Minutes 6 If you finish the setting press setting cancel button to complete programming 7 Press exit button to exit or system will automatically release without any input after 25 seconds 8 Ex Setting On Reservation time as PM 10 20 ...

Page 27: ... mode Repeat pressing button to select off reservation the segment flashing 1 Press up down button to adjust AM PM 2 Press right button to move to Hour part the Hour segment will be flashed 3 Press up down button to adjust the Hour 4 Ex Setting Off Reservation time as PM 11 20 This function is able to turn off after a setting time ...

Page 28: ...o move to Minute part the Minute segment will be flashed 5 Press up down button to adjust the Minutes 6 If you finish the setting press setting cancel button to complete programming 7 Press exit button to exit or system will automatically release without any input after 25 seconds 8 ...

Page 29: ...on The segment will be flashed 1 Press left right button to adjust the current day 2 Press up down button to adjust the action number 3 Press right button to move to Hour Part on ON Time section The Hour segment will be flashed 4 Ex Setting one action as below Day TUE ON Time 11 30 AM OFF Time 12 30 PM Start Time Section The weekly reservation is active after setting current time ...

Page 30: ...on Start Time section 5 Press right button to move to Minute Part on Start time section The Minute segment will be flashed 6 Press up down button to adjust the Minute on Start Time section 7 Press right button to move to Hour Part on OFF Time section The Hour segment will be flashed 8 Off Time Section ...

Page 31: ... created when it finished 10 Please refer the process from No 2 to No 10 for setting other day weekly program It is same method Description of weekly reservation Start Time Section Off Time Section Start Time Section Off Time Section 11 Note Press exit button to exit or system will automatically release without any input after 25 seconds 12 Action Start Time From Two actions per weekday can be pro...

Page 32: ... flashed 1 Press left right button to adjust the holiday 2 When you press set clear button after finishing the selection the day selected will be disappear 3 Press exit button to exit or system will automatically release without any input after 25 seconds 4 Ex Setting holiday on Friday Programming Holiday Reservation This function is to automatically stop the machine working on some days ...

Page 33: ...t and it should be supplied 3rd party manufacturers Room thermostat can be used for easy and convenience control To utilize thermostat more efficiently and correctly this chapter presents information about using thermostat 1 There is no electric circuit inside the thermostat and electric power supply to the thermostat is not required 2 Electric circuit such as display LED buzzer etc is included in...

Page 34: ...hen thermostat is installed SET TEMP button VIEW TEMP button Temperature adjust button Sanitary water heating Enable Disable Silent operation On Off Adjusted temperature is only used to control electric heater on off condition The product does not turn on off according to the setting temperature at the control panel It turns on off according to the thermostat signal Following features are NOT perm...

Page 35: ...indoor unit In most case this trouble is concerned with sensor problems The outdoor unit is operating under emergency mode operation condition which is configured by DIP switch No 4 of the indoor unit PCB Heavy trouble a problem is found inside the outdoor unit As the outdoor unit has problem the emergency mode operation is performed by electric heater located in the indoor unit Option Trouble a p...

Page 36: ...ted trouble Option trouble with Slight or Heavy trouble If option trouble is occurred with slight or heavy trouble at the same time the system puts higher priority to slight or heavy trouble and operates as if slight or heavy trouble is occurred Therefore sometimes sanitary water heating can be impossible in emergency operation mode When sanitary water is not warming up while emergency operation p...

Page 37: ...turn the breaker off Never try to repair by yourself or restart the system in such cases 2 Main power cord is too hot or damaged 3 Error code is generated by self diagnosis 4 Water leaks from indoor unit 5 Any switch breaker safety earth or fuse fails to work properly User must carry routine checkup cleaning to avoid unit s poor performance In case of special situation the job must be carried out ...

Page 38: ...tems in the room This is the protector of the mechanism Wait about three minutes and operation will begin The room may have been very hot when the AWHP was first turned on Allow time for it to cool down Has the setting temperature been set incorrectly Refrigerant flow sound While the system is being started or stopping sound from the refrigerant flow may be heard Sound for the indoor unit heat exc...

Page 39: ... household waste Do not try to dismantle the system yourself the dismantling of the system treatment of the refrigerant of oil and other parts must be done by a qualified installer is accordance with relevant local and national legislation Units must be treated at a specialized treatment facility for re use recycling and recovery By ensuring this product is disposed off correctly you will help to ...

Page 40: ...P No MFL57490701 Printed in Korea After reading this manual keep it in a place easily accessible to the user for future reference ...

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