LG | ARNH10GK2A4.ENWALEU | User manual | LG ARNH04GK2A4.ENWALEU РЪКОВОДСТВО ЗА МОНТАЖ

LG ARNH04GK2A4.ENWALEU РЪКОВОДСТВО ЗА МОНТАЖ
ENGLISH
РУССКИЙ ЯЗЫК
ITALIANO
ESPAÑOL
FRANÇAIS
INSTALLATION MANUAL
DEUTSCH
AIR-TO-WATER
HEAT PUMP
ΕΛΛΗΝΙΚΆ
ČEŠTINA
www.lg.com
Copyright © 2018 - 2019 LG Electronics Inc. All Rights Reserved.
LIMBA ROMÂNĂ
MFL67086712
Rev.03_082119
POLSKI
Hydro Kit
Original instruction
[Representative] LG Electronics Inc. EU Representative : LG Electronics European Shared
Service Center B.V. Krijgsman 1, 1186 DM Amstelveen, The Netherlands
[Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro, Seongsan-gu,
Changwon-si, Gyeongsangnam-do, KOREA
NEDERLANDS
Please read this installation manual completely before installing the product.
Installation work must be performed in accordance with the national wiring
standards by authorized personnel only.
Please retain this installation manual for future reference after reading it thoroughly.
Table of contents
TABLE OF CONTENTS
3
7
8
SAFETY PRECAUTIONS
INSTALLATION PARTS
GENERAL INFORMATION
8
10
Model Information
General Information
11
INSTALLATION
11
12
12
14
15
18
25
28
29
31
34
Transporting the Unit
Selection of the best location
Installation Space
Foundation for Installation
Water Piping and Water Circuit Connection
Installation Scenes
Refrigerant Piping
How to connect wirings
Wiring Connection
Connecting Cables
Independent Power Module
36
ACCESSORIES INSTALLATION
36
38
38
39
43
44
46
47
49
50
51
52
Location of Accessories and External Parts Connection
Main Pump Connection
Water tank temperature sensor Connection
Thermostat
Remote Temperature Sensor
3Way Valve
2Way Valve
Dry Contact
External Controller
External pump
Wi-fi Modem
Smart Grid
53
SYSTEM SET-UP
53
56
60
DIP Switch Setting
Group Control Setting
Installer Setting
73
TEST RUN
73
73
74
76
76
76
Caution before Operation Test
Operation Test of Water Pipe
Troubleshooting
Airborne Noise Emission
Limiting concentration
Model Designation
2 Hydro Kit
Safety Precautions
To prevent injury to the user or other people and property damage, the following
instructions must be followed.
n Be sure to read before installing the unit.
n Be sure to observe the cautions specified here as they include important items related
to safety.
n Incorrect operation due to ignoring instruction will cause harm or damage.
The seriousness is classified by the following indications.
!
WARNING This symbol indicates the possibility of death or serious injury.
!
CAUTION
This symbol indicates the possibility of injury or damage to properties only.
n Meanings of symbols used in this manual are as shown below.
Be sure not to do.
Be sure to follow the instruction.
!
WARNING
Installation
• Do not use a defective or underrated circuit breaker. Use this
appliance on a dedicated circuit.
- There is risk of fire or electric shock.
• For electrical work, contact the dealer, seller, a qualified electrician,
or an Authorized Service Center.
- There is risk of fire or electric shock.
• Always ground the unit.
- There is risk of fire or electric shock.
• Install the panel and the cover of control box securely.
- There is risk of fire or electric shock.
• Always install a dedicated circuit and breaker.
- Improper wiring or installation may cause fire or electric shock.
• Use the correctly rated breaker or fuse.
- There is risk of fire or electric.
• Do not modify or extend the power cable.
- There is risk of fire or electric shock.
• Do not install, remove, or reinstall the unit by yourself (customer).
- There is risk of fire, electric shock, explosion, or injury.
Hydro Kit Installation Manual 3
ENGLISH
Safety Precautions
Safety Precautions
• For antifreeze, always contact the dealer or an authorized service
center.
- Almost the antifreeze is a toxic product.
• The refrigerant of this product is R410A.
- The installation tool such as manifold gauge should be complied
with R410A.
• For installation, always contact the dealer or an Authorized Service
Center.
- There is risk of fire, electric shock, explosion, or injury.
• Do not install the unit on a defective installation stand.
- It may cause injury, accident, or damage to the unit.
• Be sure the installation area does not deteriorate with age.
- If the base collapses, the unit could fall with it, causing property
damage, unit failure, and personal injury.
• Do not install the unit outdoor.
- It may cause damage to the unit.
• Use a vacuum pump or inert (nitrogen) gas when doing leakage
test or purging air. Do not compress air or oxygen and do not use
flammable gases.
- There is the risk of death, injury, fire or explosion.
• Means for disconnection must be incorporated in the fixed wiring in
accordance with the wiring rules.
• This equipment shall be provided with a supply conductor
complying with the national regulation.
Operation
• Take care to ensure that power cable could not be pulled out or
damaged during operation.
- There is risk of fire or electric shock.
• Do not place anything on the power cable.
- There is risk of fire or electric shock.
• Do not plug or unplug the power supply plug during operation.
- There is risk of fire or electric shock.
• Do not touch (operate) the unit with wet hands.
- There is risk of fire or electric shock.
• Do not place a heater or other appliances near the power cable.
- There is risk of fire or electric shock.
4 Hydro Kit
Safety Precautions
Hydro Kit Installation Manual 5
ENGLISH
• Do not allow water to run into electric parts.
- There is risk of fire, failure of the unit, or electric shock.
• Do not store or use flammable gas or combustibles near the unit.
- There is risk of fire or failure of unit.
• Do not use the unit in a tightly closed space for a long time.
- It may cause damage to the unit.
• When flammable gas leaks, turn off the gas and open a window for
ventilation before turning the unit on.
- There is risk of explosion or fire.
• If strange sounds, or smell or smoke comes from unit, turn the
breaker off or disconnect the power supply cable.
- There is risk of electric shock or fire.
• Stop operation and close the window in storm or hurricane. If
possible, remove the unit from the window before the hurricane
arrives.
- There is risk of property damage, failure of unit, or electric shock.
• Do not open the front cover of the unit while operation. (Do not
touch the electrostatic filter, if the unit is so equipped.)
- There is risk of physical injury, electric shock, or unit failure.
• When the unit is soaked (flooded or submerged), contact an
Authorized Service Center.
- There is risk of fire or electric shock.
• Be cautious that water could not be poured to the unit directly.
- There is risk of fire, electric shock, or unit damage.
• Ventilate the unit from time to time when operating it together with
a stove, etc.
- There is risk of fire or electric shock.
• Turn the main power off when cleaning or maintaining the unit.
- There is risk of electric shock.
• Take care to ensure that nobody could step on or fall onto the unit.
- This could result in personal injury and unit damage.
• For installation, always contact the dealer or an Authorized Service
Center.
- There is risk of fire, electric shock, explosion, or injury.
• If the unit is not used for long time, we strongly recommend not to
switch off the power supply to the unit.
- There is risk of water freezing.
Safety Precautions
!
CAUTION
Installation
• Always check for gas (refrigerant) leakage after installation or
repair of unit.
- Low refrigerant levels may cause failure of unit.
• Keep level even when installing the unit.
- To avoid vibration or water leakage.
• Use two or more people to lift and transport the unit.
- Avoid personal injury.
Operation
• Do not lay on the cooled floor for long time when the unit is in
cooling operation.
- This could harm to your health.
• Do not use the unit for special purposes, such as preserving foods,
works of art, etc.
- There is risk of damage or loss of property.
• Use a soft cloth to clean. Do not use harsh detergents, solvents,
etc.
- There is risk of fire, electric shock, or damage to the plastic parts
of the unit.
• Do not step on or put anything on the unit.
- There is risk of personal injury and failure of unit.
• Use a firm stool or ladder when cleaning or maintaining the unit.
- Be careful and avoid personal injury.
• Do not unplug the power supply plug of Hydro Kit when stopping
Hydro Kit operation. Always turn Hydro Kit off, using the wired
remote controller.
- A plate heat exchanger burst may happen because of
disconnection of communication between Hydro Kit and the
outdoor unit.
6 Hydro Kit
Installation Parts
ENGLISH
Installation Parts
Thank you for choosing LG Electronics Hydro Kit.
Before starting installation, please make it sure that all parts are found inside the unit box.
Item
Image
Quantity
Remote Cotroller
/ Cable
1
OK
Sensor Holder
1
Water Tank Temperature
Sensor
1
Strainer
1
Independent
Power Module
(For Medium Temperature)
1
ENGLISH
ɊɍɋɋɄɂɃəɁɕɄ
ITALIANO
ESPAÑOL
FRANÇAIS
INSTALLATION MANUAL
AIR-TO-WATER
HEAT PUMP
DEUTSCH
ǼȁȁǾȃǿȀDZ
Installation Manual
1
ČEŠTINA
POLSKI
Hydro Kit
Original instruction
[Representative] LG Electronics Inc. EU Representative : LG Electronics European Shared
Service Center B.V. Krijgsman 1, 1186 DM Amstelveen, The Netherlands
[Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro, Seongsan-gu,
Changwon-si, Gyeongsangnam-do, KOREA
www.lg.com
Copyright © 2018 LG Electronics Inc. All Rights Reserved.
ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH фъъцьшщُ ČEŠTINA
OWNER’S MANUAL
Owner's Manual
LIMBA ROMÂNĂ
001
MFL67086712
Rev.00_101118
NEDERLANDS
Please read this installation manual completely before installing the product.
Installation work must be performed in accordance with the national wiring
standards by authorized personnel only.
Please retain this installation manual for future reference after reading it thoroughly
AIR
CONDITIONER
1
NEDERLANDS
Please read this manual carefully before operating your set and retain it for future
reference.
Hydro Kit (For High Temperature)
POLSKI
Original instruction
LIMBA ROMÂNĂ
[Representative] LG Electronics Inc. EU Representative : LG Electronics European Shared
Service Center B.V. Krijgsman 1, 1186 DM Amstelveen, The Netherlands
[Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro, Seongsangu, Changwon-si, Gyeongsangnam-do, KOREA
www.lg.com
P/NO : MFL67870215
CN_EXT Cable
1
Hydro Kit Installation Manual 7
General Information
General Information
With advanced inverter technology, Hydro Kit is suitable for applications like under floor heating,
and hot water generation. By Interfacing to various accessories user can customize the range of the
application.
Model Information
Model name and related information
• For Medium Temperature
Hydro Kit
Type
HP
Power Supply
Cooling
Capacity
Heating
10
Ø, V, Hz
4
1, 220-240, 50
kW
28
12.3
kcal/h
24 100
10 580
Btu/h
95 900
42 000
kW
31.5
13.8
kcal/h
27 100
11 870
Btu/h
107 500
47 000
*1 : Tested under Eurovent Heating condition
(water temperature 30 °C → 35 °C at outdoor ambient temperature 7 °C / 6 °C)
*2 : Tested under Eurovent Cooling condition
(water temperature 23 °C → 18 °C at outdoor ambient temperature 35 °C / 24 °C)
- Max Allowable pressure
High side : 4.2 MPa / Low Side : 2.4 MPa
- Max Allowable water temperature
High side : 50 °C / Low side : 10 °C
- Max Allowable water pressure 0.98 MPa (0.3~10 kgf/cm2)
8 Hydro Kit
General Information
Hydro Kit
Type
HP
8
Power Supply
Capacity
Refrigerant
Ø, V, Hz
Heating
kW
25.2
13.8
kcal/h
21 700
11 870
Btu/h
85 900
Type
Quantity
4
1, 220-240, 50
47 000
R134a
kg(lbs)
3(6.6)
2.3(5.04)
*1 : Tested under Eurovent Heating condition
(Water temperature 55 ℃ → 65 ℃ at outdoor ambient temperature 7 ℃ / 6 ℃)
- Max Allowable pressure
High side : 4.2 MPa / Low Side : 2.4 MPa
- Max Allowable water temperature
High side : 80 °C / Low side : 10 °C
- Max Allowable water pressure 0.98 MPa (0.3~10 kgf/cm2)
Hydro Kit Installation Manual 9
ENGLISH
• For High Temperature
General Information
General Information
To extend the functionality of Hydro Kit, there are various external auxiliary apparatus called as
"accessories".
They are classified by "accessories" and "3rd party accessories" according to the manufacturer.
Accessories are presented LG Electronics, and 3rd party accessories are presented by related
manufacturers.
Accessories supported by LG Electronics
Item
Purpose
Model
(Medium Temperature)
Model
(High Temperature)
Remote Air
Sensor
To control the unit by air
temperature
PQRSTA0
PQRSTA0
Dry Contact
To receive on & off external
signal
PDRYCB000 /
PDRYCB100 /
PDRYCB300
PDRYCB000 /
PDRYCB100 /
PDRYCB300
Solar Thermal Kit
To operate with sanitary
water tank
PHLLA
Accessories supported by 3rd party Companies
Item
Purpose
Solar
Thermal System
To generate auxiliary
heating energy for water tank
Specification
Thermostat
To control the unit by air
temperature
Heating-Only type
(230 V AC or 24 V AC)
Cooling/Heating type
(230 V AC or 24 V AC
with Mode selection switch)
3way valve
and actuator
To control water flow for hot
water heating or floor heating
3 wire, SPDT (Single Pole Double
Throw) type, 230 V AC
2way valve
and actuator
To control water flow for
Fan Coil Unit
2 wire, NO(Normal Open) or NC
(Normal Closed) type, 230 V AC
10 Hydro Kit
Installation
ENGLISH
Installation
Transporting the Unit
• For High Temperature
• When carrying the suspended unit, pass the ropes between legs of base panel under the unit.
• Always lift the unit with ropes attached at 6 points so that impact is not applied to the unit.
• Attach the ropes to the unit at an angle Ⓐ of 40° or less.
• Use only accessories and parts which are of the designated specification when installing.
Sub line
40º or less
Line supporter
!
CAUTION
Be very careful while carrying the unit.
- Do not have only one person carry the unit if it is more than 20 kg (44.1 lbs).
- PP bands are used to pack some products. Do not use them as a mean for transportation
because they are dangerous.
- Tear plastic packaging bag and scrap it so that children cannot play with it. Otherwise
plastic packaging bag may suffocate children to death.
- When carrying the unit, be sure to support it at 6-points. Carrying and lifting the unit with 4point support may make it unstable, resulting in a fall.
Hydro Kit Installation Manual 11
Installation
Selection of the best location
Select space for installing the unit, which will meet the following conditions:
The place where the unit shall be installed inside.
The place shall easily bear a load exceeding four times of the unit weight.
The place where the unit shall be leveled.
The place shall allow easy water drainage.
The place where the unit shall be connected to the outdoor unit.
The place where the unit is not affected by an electrical noise.
The place where there should not be any heat source or steam near the unit.
Installation Space
• The following values are the least space for installation.
If any service area is needed for service according to field circumstance, obtain enough service
space.
• The unit of values is mm(inch).
<For Medium Temperature>
520(20-15/32)
400(15-3/4)
(Unit: mm(inch))
100(3-15/16)
Product
Piping space
(front side)
Service space
(front side)
631(24-16/19)
space
330(13)
600(23-5/8)
100(3-15/16)
100(3-15/16)
631(24-16/19)
space
(Unit: mm(inch))
100(3-15/16)
H-Beam supporter
200(7-7/8)
12 Hydro Kit
Installation
300(11-13/16) 520(20-15/32)
400(15-3/4)
(Unit : mm(inch))
100(3-15/16)
space
Piping space
(front side)
350(13-25/32)
600(23-5/8)
(Unit : mm(inch))
Anti Vibration
material
100(3-15/16)
space
100(3-15/16)
1 080(42-17/32)
Service space
(front side)
1 080(42-17/32)
Service space
(left side)
100(3-15/16)
H-Beam supporter
Concrete supporter
200(7-7/8)
Hydro Kit Installation Manual 13
ENGLISH
<For High Temperature>
Installation
Foundation for Installation
• Fix the unit tightly with bolts as shown below so that the unit will not fall down due to earthquake.
• Noise and vibration may occur from the floor or wall since vibration is transferred through the
installation part depending on installation status. Thus, use anti-vibration materials (cushion pad)
fully (The base pad shall be more than 200 mm (7-7/8 inch)).
<For Medium Temperature>
340(13-3/8)
Anti-vibration material
392(15-7/16)
Concrete base
Support
3 or more screw threads of
the 2 bolts must be shown
75(2-15/16)
(Unit: mm(inch))
Nut
Flat washer
Spring washer
Anchor bolt
354(13-31/32)
<For High Temperature>
392(15-7/16)
(Unit: mm(inch))
Drain pipe connection (For Medium Temperature)
- Hydro Kit does not use the drain pump.
- Do not install in upward direction.
- Install the drain pipe in downward direction (1/50-1/100).
- Hydro Kit drain connection pipe is PT 1.
Hydro kit
14 Hydro Kit
Hydro kit
Installation
ENGLISH
Water Piping and Water Circuit Connection
General Considerations
Followings should be considered before beginning water circuit connection.
• Service space should be secured.
• Water pipes and connections should be cleaned using water.
• Space for installing external water pump should be provided.
• Never connect electric power while proceeding water charging.
Water Piping and Water Circuit Connection
While installing water pipes, followings should be considered :
• While inserting or putting water pipes, close the end of the pipe with pipe cap to avoid dust entering.
• When cutting or welding the pipe, always be careful that inner section of the pipe should not be
defective. For example, no weldments or no burrs are found inside the pipe.
• Pipe fittings (e.g. L-shape elbow, T-shape tee, diameter reducer, etc) should be tightened strongly
to be free from water leakage.
• Connected sections should be leakage-proof treatment by applying tefron tape, rubber bushing,
sealant solution, etc.
• Appropriate tools and tooling methods should be applied to prevent mechanical breakage of the connections.
• Operation time of flow valve(e.g. 3way valve or 2way valve) should be less than 90 seconds.
• Pipe is insulated to prevent heat loss to external environment.
Strainer
- Use the 30 mesh strainer. (Exclude scale diameter of 0.8 mm or less and other net)
- Check the strainer direction and assemble on the inlet hole (Refer to picture)
- Wrap the Teflon tape on the screw thread of the water pipe for more than 15 times for assembly.
- Install the service port facing downward. (Within left/right 45 degrees)
- Check if there is any leakage on the connecting part.
- Clean the strainer periodically. (Once a year or more frequent)
Water In
45°
Front
Strainer
Side
Hydro Kit Installation Manual 15
Installation
Water cycle minimum requirements
1. For selecting the components of the hydraulic system, be sure they are above the design water
pressure.
2. For the water pipe, diffusely tight water pipes are recommended instead of steel pipes.
3. For the drain pipe size, use the same diameter as the product connected or larger. Always install a
natural drainage so that the drained water does not flows back
4. Install insulated material across the total hydraulic piping to prevent condensation and to prevent
low cooling or heating capacity during heat transfer losses. If the temperature is higher than 30 °C
and the humidity is higher than 80 % the insulation material must be minimum 20 mm thick to
prevent condensation.
5. Install the shut-off valve (1) to block the water by closing the valve when replacing the component
or cleaning.
6. Install an expansion tank (2) based on the water volume of the hydraulic system.
7. Install the drain valve (3) that can be used for draining the water inside when replacing the
component or providing service.
8. Install a magnetic dirt separator (4) at the inlet water pipe If the air separator is not installed there
can be formed air bubbles inside the hydraulic system. Flow error will be showed first on remote
controller, however finally a plate heat exchanger may burst during combined circumstances.
9. Install a circulation pump (5) which meets the water flow specifications mentioned inside product
data book.
10. Install the strainer (6) at the inlet water pipe connection to protect the PHE. Do not charge water
into the water pipe directly during Hydro Kit operation. If the strainer is not installed, component
malfunction of Hydro Kit may occur.
- For the strainer, use one with 30 mesh or above with measurement diameter of 0.8 mm or less.
- Always install the strainer on the horizontal pipe.
11. Install a balancing valve (with flow meter) (8)
12. Install an automatic air separator in the outlet water pipe (9)
13. Install pressure safety relief valve (10) in vertical upright position that meets the design water
pressure to prevent unit or water pipe damage during pressure increase inside the water pipe
system.
14. Install a pressure meter (11) in the outlet water pipe.
15. Install in case of cascade hydraulic systems or bivalent systems a flow-check valve (12) at each
outlet water pipe.
16. Install a buffer tank (13) of at least 10L/kW heating capacity in order to have a correct defrost
cycle, if there is no knowledge about the type and dimensions of the heating system. If there is
no buffer tank installed, the product can be damaged during normal operation or defrost
operation.
17. After product operation for 2 weeks in case of new installation, clean the water filter. In the
beginning of operation small particular dirt from installing process can block the filter which can
lead to damage of the product.
16 Hydro Kit
Installation
Field Supply
ENGLISH
LG Supply
10
11
12
8
3
1
9
13
7
4
Heating
/
Cooling
1
6
3
5
Drainage
2
1
2
3
4
5
6
7
Shut-Off valve
Expansion tank
Service port(Drain valve)
Magnetic filter(Recommended)
Water Pump
Strainer
Flow switch (included in product)
8
9
10
11
12
13
Balancing valve with flow meter
Automatic air separator
Pressure safety relief valve
Pressure meter
Check valve
Buffer tank /
DHW1) (Sanitary Water) Tank
NOTICE
Install the closed loop type water pipe system.
Balancing valve with flow meter is recommended to ensure 100 % of the nominal flow.
1) DHW : Domestic Hot Water.
Hydro Kit Installation Manual 17
Installation
Installation Scenes
Installation scenes are presented for example.
Installer should optimize the installation scene according to the installation conditions and
local/national regulation.
i.e. Shut-off valves position for spare water pump and water pump service, Flexible joint
installation to prevent noise and vibration.
1) Space Heating/Cooling1) Installation
Wi-fi Module
(PWFMDD200)
Wired Remote
Controller
PQRSTA0
LG Supply Field Supply
FCU
10
11
12
8
14
3
(Cooling → Close)
1
9
13
7
4
1
1
1
6
3
5
5
1
Drainage
18 Hydro Kit
2
Water Supply
Installation
4
5
6
7
Shut-Off valve
Expansion tank
Service port(Drain valve)
Magnetic filter (Mandatory with
Corrosive material of pipe)
Water Pump
Strainer
Flow switch (included in product)
8
9
10
Balancing valve with flow meter
Automatic air separator
Pressure safety relief valve
11
Pressure meter
12
13
14
Check valve
Buffer Tank
Water Tank temperature Sensor (12 m)
- For space heating / cooling, ‘Dip switch #2’ should be set correctly.
- For sensing air temperature at specific area, remote temperature sensor(PQRSTA0) or wired
remote controller could be choose, depending on the ‘Dip switch #3’ setting.
*please refer the “System Set-Up, Dip Switch Setting”
- Wi-Fi module(PWFMDD200/105 cm) connected to ‘CN-WF’ on Hydro kit PCB. To increase the
length between Wi-Fi modem and Hydro Kit, please purchase USB Extension Cable(PWYREW000,
10 m)
- In case of floor cooling, please make sure to set cooling cut off temperature for preventing
condensation on the floor
- For 2 way valve control, please refer the “Accessories Installation, 2 Way valve”
Mode
Cooling
Heating
Condition
FCU – ‘Not use’
FCU – ‘Use’
None
2-way valve
Open
Close
No control
NOTICE
- Balancing valve with flow meter is recommended to ensure 100 % of the nominal flow.
If the water flow rate is too low or High, PHEX could be frozen and burst or capacity could be
reduced.
1) Cooling operation is only available for Medium temperature Hydro Kit.
Hydro Kit Installation Manual 19
ENGLISH
1
2
3
Installation
2) Water Tank(DHW) Installation
Wired Remote
Controller
Wi-fi Module
(PWFMDD200)
1
2
3
4
LG Supply Field Supply
10
11
12
8
14
3
13
1
9
7
4
1
6
3
5
1
Drainage
1
2
Water Supply
5
6
7
8
9
10
11
12
13
14
Shut-Off valve
Expansion tank
Service port(Drain valve)
Magnetic filter (Mandatory with
Corrosive material of pipe)
Water Pump
Strainer
Flow switch (included in product)
Balancing valve with flow meter
Automatic air separator
Pressure safety relief valve
Pressure meter
Check valve
Buffer Tank
Water Tank temperature Sensor (12 m)
- For water tank(DHW) operation, dip switch #2 in Hydro Kit PCB should be set correctly, please refer
the “System Set-Up, Dip Switch Setting”
- Wi-Fi module(PWFMDD200, 105 cm) is connected to ‘CN-WF” on Hydro Kit PCB.
To increase the length between Wi-Fi modem and Hydro Kit, please purchase USB Extension
Cable(PWYREW000, 10 m)
- DHW(Sanitary water) tank should be located at the flat place.
- Water quality should comply with EN 98/83 EC Directives.
- DHW(Sanitary water) tank (indirect heat exchange), do not use anti water-freezing treatment like
ethylene glycol.
- It is highly recommend to wash out inside of the DHW(Sanitary water) tank after installation for
clean hot water.
- Near the DHW(Sanitary water) tank , there should be water supply and water drain for easy access
and maintenance.
Water tank temperature sensor(14) connection
Process PT 1/2 inch
female bolt
Water Tank
Temperature Sensor
Sensor
holder
PT 1/2 inch male
If hot water mode is used, make sure to install sensor to
water tank.
• Make PT 1/2inch female bolt hole in the water tank and
install sensor in the water tank.
• Push the sensor into the hole of the sensor holder cap.
Inside
water tank • Lock the sensor holder cap.
• Maximum length of water tank temperature sensor is 12 m.
Water tank outer wall
20 Hydro Kit
Installation
PQRSTA0
Wi-fi Module
(PWFMDD200)
14
LG Supply Field Supply
Wired Remote
Controller
13
FCU
10
11
12
8
(Cooling → Close)
3
1
1
9
Water Supply
7
4
1
6
3
5
1
Drainage
1
2
3
4
5
6
7
Shut-Off valve
Expansion tank
Service port(Drain valve)
Magnetic filter(Recommended)
Water Pump
Strainer
Flow switch (Included in product)
Water Supply
2
8
9
10
11
12
13
14
Balancing valve with flow meter
Automatic air separator
Pressure safety relief valve
Pressure meter
Check valve
DHW1) (Sanitary Water) Tank
Water Tank temperature Sensor (12 m)
- For DHW / Floor Heating operation , ‘Dip switch #2’ should be set correctly.
- For sensing air temperature at specific area, remote temperature sensor(PQRSTA0) or wired
remote controller could be choose, depending on the ‘Dip switch #3’ setting.
*please refer the “System Set-Up, Dip Switch Setting”
- Wi-Fi module(PWFMDD200/105 cm) connected to ‘CN-WF’ on Hydro kit PCB. To increase the
length between Wi-Fi modem and Hydro Kit, please purchase USB Extension Cable(PWYREW000,
10 m)
- In case of floor cooling, please make sure to set cooling cut off temperature for preventing
condensation on the floor
- For 3-way, 2-way valve control, please refer the “Accessories Installation”
Mode
Cooling
Heating
Condition
FCU – ‘Not use’
FCU – ‘Use’
Priority – ‘DHW’
Priority – ‘UFH’
3-way valve direction
2-way valve
Under Floor
Open
Under Floor
Close
DHW / Sanitary Water Tank No control
Under Floor
No control
NOTICE
- The Heating operation mode of the hot water tank is not a mode selection by the remote controller,
it changes the 3-way valve direction to Water Tank base on the water tank temperature.
- It is impossible to operate Hot water(DHW) during cooling mode.
Hydro Kit Installation Manual 21
ENGLISH
3) Water Tank(DHW) + Floor Heating Installation(Default)
Installation
4) Water Tank(DHW) + Floor Heating + Solar booster Installation
PQRSTA0
Wired Remote
Controller
Wi-fi Module
(PWFMDD200)
14
LG Supply Field Supply
13
FCU
10
11
12
8
5
3
(Cooling → Close)
1
1
9
Water Supply
7
4
1
6
3
5
1
Drainage
1
2
3
4
5
6
7
8
Shut-Off valve
Expansion tank
Service port(Drain valve)
Magnetic filter(Recommended)
Water Pump
Strainer
Flow switch (Included in product)
Balancing valve with flow meter
2
Water Supply
9
10
11
12
13
14
Automatic air separator
Pressure safety relief valve
Pressure meter
Check valve
DHW1) (Sanitary Water) Tank
Water Tank temperature Sensor (12 m)
15
Solar panel
- For DHW / Floor Heating and Solar booster operation , ‘Dip switch #2’ should be set correctly.
- For sensing air temperature at specific area, remote temperature sensor(PQRSTA0) or wired
remote controller could be choose, depending on the ‘Dip switch #3’ setting.
*please refer the “System Set-Up, Dip Switch Setting”
- Wi-Fi module(PWFMDD200/105cm) connected to ‘CN-WF’ on Hydro kit PCB. To increase the
length between Wi-Fi modem and Hydro Kit, please purchase USB Extension Cable(PWYREW000,
10 m)
- In case of floor cooling, please make sure to set cooling cut off temperature for preventing
condensation on the floor
- DHW(Sanitary water) tank should be located at the flat place.
- Water quality should comply with EN 98/83 EC Directives.
- DHW(Sanitary water) tank (indirect heat exchange), do not use anti water-freezing treatment like
ethylene glycol.
- It is highly recommend to wash out inside of the DHW(Sanitary water) tank after installation for
clean hot water.
- Near the DHW(Sanitary water) tank , there should be water supply and water drain for easy access
and maintenance.
- For 2-way or 3-way valve control, please refer the “Accessories Installation”.
22 Hydro Kit
Installation
DHW tank, additional information
If a Non-Stainless DHW tank is used there will be a coating inside the tank to protects this tank
against corrosion.
The corrosion protection is done by an anode which is mounted inside the tank.
This anode is protecting the internal tank against corrosion which could lead to leakage and
contaminated water inside the tank, the anode will increase the lifetime of the DHW tank.
When to replace the anode?
The lifetime of a anode itself is based on the water quality inside the country.
Depending on the used DHW tank, the tank can be equipped with a anode tester.
If the DHW does not have a anode tester manually the anode must be inspected and replaced
each 3~5 year if needed.
What is an anode?
An anode protects the DHW tank against corrosion.
It consist of a bar of magnesium oxide.
A correct working anode is crucial to increase the lifetime of a Non-stainless steel DHW tank
while it makes the tank cathodic and prevent against corrosion.
Hydro Kit Installation Manual 23
ENGLISH
How to install Solar Thermal Kit(PHLLA)
Step 1. Check the diameter of pre-installed pipes. (symbol Ⓐ and Ⓑ)
Step 2. If the diameter of pre-installed pipes is different from diameter of solar thermal kit, it is
necessary to reduce or extend of pipe diameter.
Step 3. After Step 2, connect the pipe and solar thermal kit.
Step 4. Connect solar thermal sensor to ‘CN_TH4’(Red connector) of the indoor unit PCB.
If the water tank sensor is connected, disconnect the sensor from PCB first.
Installation
!
CAUTION
• If the unit is installed at existing hydraulic water loop, it is important to clean hydraulic pipes to
remove sludge and scale.
• Installing sludge strainer in the water loop is very important to prevent performance degrade.
• Chemical treatment to prevent rust should be performed by installer.
Freezing protection
• For Medium Temperature
In areas of the country where entering water temperatures drop below 15 ℃(59 ℉), the water pipe
must be protected by using an approved antifreeze solution. Consult your Hydro Kit unit supplier for
locally approved solutions in your area. Calculate the approximate volume of water in the system.
(Except the Hydro Kit unit.) And add antifreeze solution to the total volume to allow for the water
contained in Hydro Kit unit.
Type of Antifreeze
Ethylene glycol
Propylene glycol
Methanol
Minimum Temperature for Freeze Protection
15 ℃(59 ℉) ~ -5 °C(23 °F) -10 ℃(14 ℉) -15 ℃(5 ℉) -20 ℃(-4 ℉) -25 ℃(-13 ℉)
12 %
20 %
30 %
17 %
25 %
33 %
6%
12 %
16 %
24 %
30 %
• For High Temperature
In areas of the country where entering water temperatures drop below 0 ℃(32 ℉), the water pipe must
be protected by using an approved antifreeze solution. Consult your Hydro Kit unit supplier for
locally approved solutions in your area. Calculate the approximate volume of water in the system.
(Except the Hydro Kit unit.) And add antifreeze solution to the total volume to allow for the water
contained in Hydro Kit unit.
Type of Antifreeze
Ethylene glycol
Propylene glycol
Methanol
!
0 ℃(32 ℉)
0%
0%
0%
Minimum Temperature for Freeze Protection
-5 ℃(23 ℉) -10 ℃(14 ℉) -15 ℃(5 ℉) -20 ℃(-4 ℉) -25 ℃(-13 ℉)
12 %
20 %
30 %
17 %
25 %
33 %
6%
12 %
16 %
24 %
30 %
CAUTION
1. Use only one of the above antifreeze.
2. If a antifreeze is used, pressure drop and capability degradation of the system can occur.
3. If one of antifreezes is used, corrosion can occur. So please add corrosion inhibitor.
4. Please check the concentration of the antifreeze periodically to keep same concentration.
5. When the antifreeze is used (for installation or operation), take care to ensure that antifreeze
must not be touched.
6. Ensure to respect all laws and norms of your country about Anti-freeze usage.
7. When hydro kit is applied for cooling, the antifreeze must be added in the water circuit to
prevent freezing.
8. Set the DIP S/W and short key to Anti Freeze mode only after the addition of brine(Anti-freeze).
Or else the product may get damage due to freezing and bursting.
!
WARNING
Do not add brine(Anti-freeze) to the water circuit when it is used for hot water.
24 Hydro Kit
Installation
ENGLISH
Refrigerant Piping
Cut the pipes and the cable
- Use the accessory piping kit or the pipes
purchased locally.
- Measure the distance between the indoor
and the outdoor unit.
- Cut the pipes a little longer than measured
distance.
- Cut the cable 1.5 m longer than the pipe length.
Copper
tube
Slanted Uneven Rough
90°
Pipe
Reamer
Burrs removal
- Completely remove all burrs from the cut
cross section of pipe/tube.
- Put the end of the copper tube/pipe to
downward direction as you remove burrs in
order to avoid to let burrs drop in the tubing.
Point down
Pipe welding
- Insert and weld the pipe.
- Always make sure to flow Nitrogen at 0.2
kgf/cm2 within the pipe when welding.
- If the welding is done without flowing Nitrogen,
it can generate a thick oxidized coating within
the pipe to interfere with normal operation of
valve and compressor etc.
Direction of Nitrogen
Regulator
Copper tube
Taping
Valve
Nitrogen
Insulation
- Use rubber foamed insulation material
(EPDM, NBR) with high thermal resistance.
- When installed in humid environment, use
thicker insulation material than usual.
- Insert the insulation material within the
product as deep as possible.
Classification
Liquid pipe(Ø 9.52)
Thickness
t 9 or above
Gas pipe(Ø 22.2 - 10 HP
Ø 15.88 - 4 HP)
t 19 or above
Inside product
Panel
Insulation
Copper
tube
h The thickness of the above insulation material
is based on thermal conduction rate of 0.036
W/m °C.
When installing independent power module,
refrigerant piping should be installed in
accordance with the manual of independent
power module
Hydro Kit Installation Manual 25
Installation
Connecting Heat Recovery systems
PRHR042 / PRHR032 / PRHR022
3 4
1 2
Gas pipe Ø 15.88
Liquid pipe Ø 9.52
Welding type
Hydro kit
Gas pipe Ø 22.2
Liquid pipe Ø 9.52
- One connection of refrigerant pipe for HR unit is
insufficient for the flow of refrigerant. Join two pipes with a
branch pipe when connecting the Hydro Kit (Up to 16
kW (54 kBtu/h) capacity model: 8, 10 HP).
- The pipe number of the connected gas pipe and liquid
pipe must be same.
- Flow water in the Hydro Kit when pipe-searching
process is performed.
- Pipe-searching process error may occur if the pipe
temperature does not increase.
- It is recommended that Hydro Kit (8, 10 HP model) is
connected to No.1 valve and No.2 valve.
DIP S/W setting
Example
4
3
2
1
Indoor Unit
Indoor Unit
Indoor Unit
Indoor Unit
4
3
2
1
Indoor Unit
Indoor Unit
Hydro Kit
No.2, 3 Valve
Control
4
3
2
1
Indoor Unit
Hydro Kit
Indoor Unit
No.3, 4 Valve
Control
4
3
2
1
Hydro Kit
Indoor Unit
Indoor Unit
4
3
2
1
Hydro Kit (When two Hydro Kit are installed)
Hydro Kit
Not control
No.1, 2 Valve
Control
No.1, 2 Valve
/
No.3, 4 Valve
Control
Precaution on pipe searching process
1. Please choose the ‘Mode’ according to the water temperature
- Use ‘Mode 1’ if water temperature is higher than 30 ℃(86 ℉)
- Use ‘Mode 2’ if water temperature is lower than 30 ℃(86 ℉)
2. Be sure that water pump is operating during the pipe searching process
- If the water circulation is not detected by water flow switch, ‘CH14’ error will occur.
For more detailed information, refer to the installation manual of Heat Recovery Unit.
26 Hydro Kit
Installation
PRHR083 / PRHR063 / PRHR043 / PRHR033 / PRHR023
- One connection of refrigerant pipe for HR unit is
insufficient for the flow of refrigerant. Join two pipes with a
branch pipe when connecting the Hydro Kit
(Up to 61 kBtu/h capacity model: 8, 10 HP).
- The pipe number of the connected gas pipe and liquid
pipe must be same.
- Flow water in the Hydro Kit when pipe-searching
process is performed.
- Pipe-searching process error may occur if the pipe
temperature does not increase.
- It is recommended that Hydro Kit (8, 10 HP model) is
connected to No.1 valve and No.2 valve.
Valve Group
SW01D
Setting
Valve Group
SW01D
Setting
Not control
0
No. 5,6/7,8 Valve Control
8
No. 1,2 Valve Control
1
No. 1,2/5,6 Valve Control
9
No. 2,3 Valve Control
2
No. 1,2/7,8 Valve Control
A
No. 3,4 Valve Control
3
No. 3,4/5,6 Valve Control
B
No. 5,6 Valve Control
4
No. 3,4/7,8 Valve Control
C
No. 6,7 Valve Control
5
No. 1,2/3,4/5,6 Valve Control
D
No. 7,8 Valve Control
6
No. 1,2/3,4/6,7 Valve Control
E
No. 1,2/3,4 Valve Control
7
No. 1,2/3,4/7,8 Valve Control
F
Note:
0
SW01D (Rotary SW) : Selection of the Valve Group Control
Precaution on pipe searching process
1. Please choose the ‘Mode’ according to the water temperature
- Use ‘Mode 1’ if water temperature is higher than 30 ℃(86 ℉)
- Use ‘Mode 2’ if water temperature is lower than 30 ℃(86 ℉)
2. Be sure that water pump is operating during the pipe searching process
- If the water circulation is not detected by water flow switch, ‘CH14’ error will occur.
For more detailed information, refer to the installation manual of Heat Recovery Unit.
Hydro Kit Installation Manual 27
ENGLISH
Connecting Heat Recovery systems
Installation
How to connect wirings
• For Medium Temperature
Remove the box cover of electric parts and connect the wiring.
!
Ground
CAUTION
When connecting the power and
communication cable, always
use the terminal connector
(O-ring, Y-ring).
Communication
cable
Power Communication
cable cable
Power cable
Make sure to tighten so that
the screw of the terminal does
not get loose.
• For High Temperature
Remove the box cover of electric parts and connect the wiring.
8 HP
!
4 HP
CAUTION
When connecting the power and
communication cable, always
use the terminal connector
(O-ring, Y-ring).
Communication
cable
Communication
cable
Power cable
Power cable
Make sure to tighten so that
the screw of the terminal does
not get loose.
28 Hydro Kit
Installation
Connect the wires to the terminals on the control board individually according to the outdoor unit
connection.
• Ensure that the wire color of the outdoor unit and terminal No. are same as those of the indoor unit
respectively.
• For Medium Temperature
Terminal block Terminal block
of indoor unit of indoor unit
1(L)
2(N)
3(A)
Power cable
4(B)
Terminal block of outdoor unit
SODU.B SODU.A IDU.B IDU.A CEN.B CEN.A DRY1 DRY2 GND 12 V
Communication cable
h Resistance measurement position for incorrect wiring.
• For High Temperature
Terminal block
of indoor unit
1(L) 2(N)
Power cable
!
Terminal block
of indoor unit
3(A)
Earth
4(B)
Terminal block of outdoor unit
SODU.B SODU.A IDU.B IDU.A CEN.B CEN.A DRY1 DRY2 GND 12 V
Communication cable
WARNING
Make sure that the screws of the terminal are free from looseness.
!
CAUTION
Be sure to test the power line and communication line for incorrect wiring before
power is applied.
1) If the power line and communication line are swapped over, the product will be
damaged.
2) Incorrect wiring confirmation test method : Measure the resistance across the
power terminals (L,N) using a multi meter.
- Resistance value of a normal connection: 1 MΩ or more
- Incorrect wiring resistance value: 500 mΩ or less
Hydro Kit Installation Manual 29
ENGLISH
Wiring Connection
Installation
!
CAUTION
After the confirmation of the above conditions, prepare the wiring as follows:
1. Use a separate power source only for the air conditioner.
For the method of wiring, follow the circuit diagram on the inner side of control box cover.
2. Install a circuit breaker between power source and the unit.
3. Make sure that wiring screws are fastened. Screw could be loose by vibration during
transportation. (If screws are loose, wires could be burnt-out)
4. Check the Specification of power source
5. Make sure the electrical capacity is sufficient.
6. Starting voltage should be maintained above 90 percent of the rated voltage marked on the
name plate.
7. Make sure the cable thickness matches the power sources specification.
(Please note the relation between cable length and thickness.)
8. Do not install the earth leakage breaker in a place which is wet or moist.
Water or moisture may cause a short circuit.
9. The following troubles could be caused by voltage drop-down.
- Vibration of a magnetic switch, damage on the contact point there of, (fuse breaking),
disturbance to the normal function of a an overload protection device.
- Proper starting power is not given to the compressor.
10. Before supplying power to the indoor unit, please check the wiring of the power and
communication lines.
11. If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or
similarly qualified persons in order to avoid a hazard.
• Rating of circuit breakers
The thickness of Minimum wire (mm2)
Main power wire
Ground wire
1 Unit
2.5 ~ 6
2.5
2 Unit
10 ~ 16
2.5
3 Unit
25 ~ 35
4
4 Unit
70
6
30 Hydro Kit
Leakage circuit breaker
< 30 ~ 50 A
100 mA 0.1 sec
< 75 ~ 100 A
100 mA 0.1 sec
< 125 ~ 150 A
100 mA 0.1 sec
< 175 ~ 200 A
100 mA 0.1 sec
Installation
ENGLISH
Connecting Cables
Types of the cables
Classification
types
Cable cross section
Power cable(CV)
mm x cores
4.0 x 3
Communication cable(VCTF-SB)
mm x cores
1.0~1.5 x 2
2
2
The distance between communication cable and power cable
- If the power cable and communication cable are tied together, system malfunction may occur with
electrostatic, electromagnetic combination effect causing the interference signal. If communication
cable is connected along with power cable, secure at least 50 mm distance between indoor unit
power cable and communication cable.
is the
value
with
assumption
of the
length
of the
parallel
cable
it is
longer than
It isIt the
value
with
thethe
assumption
of the
length
of the
parallel
cable
as as
100100
m. m.
If itIf is
longthan
00 m,
100 m,
shall be calculated
with proportional
to the
added length.
it shall
be itcalculated
again withagain
proportional
to the added
length.
If the
distance
is secured
as the previous
page, still
andoccurs
the distortion
the waveform
of the power
still
If the
distortion
in the waveform
of the power
despiteinsecuring
the distance,
increase
occurs,
increase the distance.
the distance.
※ When
several
power
cables
areare
inserted
intointo
thethe
transmission
line,line,
or tied
together,
make
sure
to
h When
several
power
cables
inserted
transmission
or tied
together,
make
sure
consider the following issues.
to consider the following issues.
- Power cables and communication lines shall not be in the same transmission line.
Power
cablesand
andcommunication
communicationlines
cableshall
shallnot
notbebetied
in the
same transmission line.
- Power cables
together.
- Power cables and communication cable shall not be tied together.
!
WARNING
• Are all of the indoor units and outdoor units grounded?
• If grounding is not properly done, there is a risk of electric shock. Grounding must be done by
a qualified technician.
• Consider the surrounding conditions(surrounding temperature, direct sunlight, rain water, etc.)
when wiring the cable.
• The thickness of the power cable is the minimum thickness of metal conductor cable. Use
thicker cable considering the voltage drop.
Hydro Kit Installation Manual 31
Installation
Installation of Wired Remote Controller
1. Please fix tightly using provided screw after placing remote controller setup board on the
place where you like to setup.
- Please set it up not to bend because poor setup could take place if setup board bends.
Please set up remote controller board fit to the reclamation box if there is a reclamation box.
- Install the product so as not to make a gap with the wall side and to prevent shaking after the
installation.
<4 socket reclamation box installation>
<2 socket reclamation box installation>
2. Can set up Wired remote controller cable into three directions.
- Setup direction: the surface of wall reclamation, upper, right
- If setting up remote controller cable into upper and right side, please set up after removing
remote controller cable guide groove.
h Remove guide groove with long nose.
- Reclamation to the surface of the wall.
‫ ڹ‬Top side guide groove
‫ ڹ‬Top side guide groove
‫ں‬Right side guide
groove
‫ڸ‬Wall reclamation
3. Please fix remote controller upper part into the
setup board attached to the surface of the wall,
as the picture below, and then, connect with
setup board by pressing lower part.
- Please connect not to make a gap at the remote
controller and setup board’s upper and lower, right
and left part.
- Before assembly with the installation board, arrange
the Cable not to interfere with circuit parts.
32 Hydro Kit
‫ں‬Right side guide
groove
Installation
Wall Side
5. Please connect indoor unit and remote controller using connection cable.
Male plug ends
Please check if connector
is normally connected.
Hydro Kit
OK
Female plug ends
Optional extension cable
(purchased separately)
6. Please use extension cable if the distance between wired remote controller and indoor
unit is more than 10 m.
Extension cable(10 m) model name : PZCWRC1
!
CAUTION
When installing the wired remote controller, do not bury it in the wall.
(It can cause damage in the temperature sensor.)
Do not install the cable to be 50 m or above. (It can cause communication error.)
• When installing the extension cable, check the connecting direction of the connector of the
remote controller side and the product side for correct installation.
• If you install the extension cable in the opposite direction, the connector will not be connected.
• Specification of extension cable: 2547 1007 22# 2 core 3 shield 5 or above.
Hydro Kit Installation Manual 33
ENGLISH
4. When separating remote controller from setup board, as the picture below, after inserting
into the lower separating hole using screw driver and then, spinning clockwise, remote
controller is separated.
- There are two separating holes. Please individually separate one at a time.
- Please be careful not to damage the inside components when separating.
Installation
Independent Power Module
Independent power module is required to protect a plate heat exchanger burst. When the outdoor
unit is operating, if Hydro Kit is suddenly powered off, a plate heat exchanger burst may happen
during oil-return and defrosting cycle in cooling mode.
How to install Independent Power Module
Step 1. Open the front panel of the control box
Step 2. Assemble the cover of independent power module, fix it tightly with bolts and connect wires.
34 Hydro Kit
Installation
Step 1. Turn the power off using circuit breaker.
Step 2. Disconnect the EEV cable of the indoor units PCB(CN-EEV)
Step 3. Connect the independent power kit(CN-EEV/LOAD) to the indoor units EEV, using harness 1.
Step 4. Connect the independent power kit(CN-EEV/MAIN) to the indoor units PCB
(CN-EEV / CN-WRITE), using harness 2.
Step 5. Supply the power.
CN-WRITE
CN-EEV
Harness 2
CN_EEV/MAIN EEV
CN_EEV/LOAD
Harness 1
To Indoor unit’s EEV
!
WARNING
• The wire should not be exposed to the outside otherwise it may leads to the malfunction of the
independent power kit due to wire damage.
• Wrong wiring also causes the malfunction of the independent power kit or damage to it.
• Power should be supplied more than 20 minutes continuously in order to operate the
independent power kit correctly. Otherwise, the independent power kit can not fully close the
EEV due to the lack of the charging power.
For more detailed information, refer to the installation manual of Independent Power
Module.
Hydro Kit Installation Manual 35
ENGLISH
How to wire Independent Power Module
Accessories Installation
Accessories Installation
Location of Accessories and External Parts Connection
• For Medium Temperature
Refrigerant leak detector locking location
(CN-LEAK-ROOM2)
Water tank temperature sensor locking location (CN-TH4)
Remote controller locking location (CN-REMO)
Wi-Fi module locking location (CN-WF)
Dry contact board locking location (CN-CC)
External PCB locking location (CN-EXT)
SG ready connecting location (TB-SG)
External pump connecting location (TB-EXT-PUMP)
PUMP(B)
(Solar)
3WAY VALVE
(B)
1
L
BR
2
L1
WH
3
N
BL
4
L
BR
PUMP(A)
(Hydro kit)
12
N
BL
11
L
BR
3WAY VALVE
(A)
5
N
BL
6
7
14
L1
BR
17
L
BR
16
N
BL
15
L2
WH
9
L1
WH
10
N
BL
THERMOSTAT
(Default : 230 V AC)
2WAY VALVE
(A)
13
8
L
BR
18
N
BL
19
L1
WH
20
L2
BK
• For High Temperature
SG ready connecting location (TB-SG)
External PCB locking location (CN-EXT)
Remote controller locking location (CN-REMO)
Refrigerant leak detector locking location
(CN-LEAK-ROOM2)
Water tank temperature sensor locking location (CN-TH4)
Wi-Fi module locking location (CN-WF)
Dry contact board locking location (CN-CC)
External pump connecting location (TB-EXT-PUMP)
L
N
PUMP(A)
(Hydro kit)
36 Hydro Kit
L
L1
N
3WAY VALVE
(A)
L
N
L1
L2
THERMOSTAT
(Default : 230 V AC)
Accessories Installation
!
WARNING
Install the unit after turning off the main power.
Do not connect the products out of range specified in the manual.
Do not work with wet hand.
Name
Port
Electrical Spec
Function
3way valve
(Hydro kit)
Terminal Block
- Mid Temp : #8 / #9 / #10
- High Temp : #4 / #5 / #6
230V(output)
- Live : #8 / #9 (#4/ #5)
- Neutral : #10 (#6)
2way valve
(Hydro kit)
Terminal Block
- Mid Temp : #14 / #15 / #16
230V(output)
- Live : #14 / #15
- Neutral : #16
Pump
(Hydro kit)
Terminal Block
- Mid Temp : #11 / #12
- High Temp : #1 / #2
230V(output)
- Live : #11 (#1)
- Neutral : #12 (#2)
3way valve
(Solar)
Terminal Block
- Mid Temp : #1 / #2 / #3
230V (output)
- Live : #1 / #2
- Neutral : #3
Change the water flow to
Solar or Water tank circuit
Water Pump
(Solar)
Terminal Block
- Mid Temp : #4 / #5
230V(output)
- Live : #4
- Neutral : #5
Water circulation for solar water piping
system
Thermostat
230V or 24V
Terminal Block
- Live : #17 (#7)
- Mid Temp : #17 / #18 / #19 / #20
- Neutral : #18 (#8)
- High Temp : #7 / #8 / #10
- Signal : #19 / #20 (#10)
Change the water flow to Water tank or
Floor circuit
Change water flow to FCU or Floor Circuit
Water circulation
Operating with Thermostat
(Mechanical)
Water Tank
Temperature Sensor
CN_TH4
NTC 5 kΩ, 12 m
Detect water temperature in water tank
Remote Room
Temperature Sensor
(PQRSTA0)
CN_ROOM
NTC 10 kΩ, 15 m
Detect Air temperature in Room
CN_WF
DC 12 V, 5 m
Wi-Fi
(PWFMDD200)
External on/off Control CN_EXT
Dry Contact
Non-Voltage (Digital input)
CN_CC
Non-Voltage (input)
Refrigerant Leak
detection
CN_LEAK_ROOM2
DC 5 V, 35 mA, 10 m
Smart Grid
TB SG2 , TB SG1
220 ~ 240 V AC [Input]
TB EXT_PUMP
Non-Voltage [output] / 1 A
External pump
Control with Mobile app
Operation on/off with external device.
Dry contact connection point
Detect refrigerant leakage
Interlock with external pump by relay
Hydro Kit Installation Manual 37
ENGLISH
• Connect 3way valve, if both floor heating and hot water is used.
• Connect the separately purchased thermostat.
• Dry contact is an accessory supplied by LG and installed by referring to the attached installation
manual.
• 3way valve, thermostat and pump are external parts for installation, which are not supplied by LG.
After checking each part carefully, install external parts respectively.
• Connect the cable of each accessory to the terminal block of the control box in the Hydro Kit.
• Check the label attached on the terminal block to prevent wrong connection.
• Use the pump of 220 ~ 240 voltage and maximum operation current of 3 A or less.
• Select a suitable relay for pump capacity when connecting the pump to the unit.
Accessories Installation
Main Pump Connection
• Select the suitable pump by referring to the flow rate table with water
temperature difference between the entrance and the exit.
Pump
(A)
L
• It is recommended that the flow rate is Rated water flow (refer to the
specification of PDB)
N
• Use the pump with enough capacity to guarantee the loss of entire water
pressure and to supply the Hydro Kit with water.
Relay
• Select a suitable relay for pump capacity when connecting the pump to the
unit.
• Connect the relay to the terminal block Pump(A) of the control box.
Pump
!
CAUTION
• Make sure to supply external power with the pump.
Water tank temperature sensor Connection
• Water tenk temperature sensor is needed for hot water mode.
• Connect sensor housing to PCB‘CN-TH4’ connector (red).
CN-TH4
• To activate hot water mode, Dip S/W should be set #2, #3
according to DIP Switch Setting.
Housing
Water tank
thermistor
!
CAUTION
• When the water tank temperature sensor is disconnected or shorted, CH08 error will occur.
• In case of floor heating mode, water tank temperature sensor doesn’t need to be
connected.
38 Hydro Kit
Accessories Installation
Thermostat is generally used to control the unit by air temperature. When thermostat is connected to
the unit, the unit operation is controlled by the thermostat.
Installation Condition
!
CAUTION
1. Use 230 V AC Thermostat.
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 unit does not response quickly.
3. Setting temperature range by thermostat can be different with that of the unit. The heating set
temperature should be chosen within the setting temperature range of the unit.
4. It is highly recommended that the thermostat should be installed where space heating is mainly
applied.
Following location should be avoid to secure proper operation :
• Height from floor is approximately 1.5 m.
• Thermostat can not be located where the area may be hidden when door is open.
• Thermostat can not be located where external thermal influence may be applied. (such as
above heating radiator or open window)
Direct
Sun ray contact area
yes
no
1.5 m
no
no
Hydro Kit Installation Manual 39
ENGLISH
Thermostat
Accessories Installation
General Information
Hydro Kit supports following thermostats.
Type
Power
230 V AC
Mechanical
(1)
24 V AC
230 V AC
Electrical
(2)
24 V AC
Supported
(Medium Temperature)
Supported
(High Temperature)
Heating Only (3)
Yes
Yes
Heating / Cooling (4)
Yes
No
Heating Only (3)
Yes
No
Heating / Cooling (4)
Yes
No
Heating Only (3)
Yes
Yes
Heating / Cooling (4)
Yes
No
Heating Only (3)
Yes
No
Heating / Cooling (4)
Yes
No
Operating Mode
(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.
!
CAUTION
Choosing Heating / Cooling Thermostat
• Heating / Cooling Thermostat must have "Mode Selection" feature to distinguish operation
mode.
• Heating / Cooling Thermostat must be able to assign heating target temperature and cooling
target temperature differently.
• If above conditions are not kept, the unit can not operation properly.
• Heating / Cooling Thermostat must send cooling or heating signal immediately when
temperature condition is satisfied. No delay time while sending cooling or heating signal is
permitted.
40 Hydro Kit
Accessories Installation
Follow below procedures Step 1 ~ Step 6.
Step 1. Uncover front cover of the unit and open the control box.
Step 2. Identify the power specification of the thermostat. If it is 230 V AC, go to Step 4. Otherwise, if
it is 24 V AC, go to step 3.
Step 3. Find thermostat connecting cable A and C. Disconnect cable A and C, then connect cable B and C.
B
A
First:
Disconnect
A and C
Second:
Connect
B and C
C
Step 4. If it is Heating Only Thermostat, go to step 5. Otherwise, if it is Heating / Cooling Thermostat,
go to step 6.
Step 5. Find terminal block and connect wire as below. After connecting, go to step 6.
!
THERMOSTAT
(Default : 230 V AC)
1
L
BR
(L)
2
3
N
L1
BL
WH
(N)
Mechanical type Thermostat.
Do not connect wire (N) as mechanical type thermostat does not
require electric power supply.
4
L2
BK
(H)
!
Thermostat
WARNING
CAUTION
Do not connect external electric loads.
Wire (L) and (N) should be used only for operation Electric type
thermostat.
Never connect external electric loads such as valves, fan coil units, etc.
If connected, Main PCB Assembly 1 can be seriously damaged.
(L) : Live signal from PCB to Thermostat
(N) : Neutral signal from PCB to Thermostat
(H) : Heating signal from Thermostat to PCB
Hydro Kit Installation Manual 41
ENGLISH
How to Wire Thermostat
Accessories Installation
Step 6. Find terminal block and connect wire as below.
!
THERMOSTAT
(Default : 230 V AC)
1
L
BR
(L)
2
N
BL
3
L1
WH
(N)
(C)
Mechanical type Thermostat.
Do not connect wire (N) as mechanical type thermostat does
not require electric power supply.
4
L2
BK
(H)
!
Thermostat
WARNING
CAUTION
Do not connect external electric loads.
Wire (L) and (N) should be used only for operation Electric
type thermostat.
Never connect external electric loads such as valves, fan coil
units, etc. If connected, Main PCB Assembly 1 can be
seriously damaged.
(L) : Live signal from PCB to Thermostat
(N) : Neutral signal from PCB to Thermostat
(C) : Cooling signal from Thermostat to PCB
(H) : Heating signal from Thermostat to PCB
Final Check
• DIP switch setting :
Set DIP switch No. 8 to ‘ON’ (Check the system set-up of Chapter 7). Otherwise, the unit can not
recognize the thermostat.
• Remote Controller :
- ‘Thermostat’ text is displayed on the remote controller.
- Button input is prohibited.
42 Hydro Kit
Accessories Installation
Remote temperature sensor can be installed any place a user wants to detect the temperature.
How to Install Remote Temperature Sensor
Step 1. After deciding where the remote temperature sensor is
installed, decide the location and height of the fixing
screws. (Interval between the screws : 60 mm)
Step 2. Insert the connector of the connection wire into the space
for the connector in place of the room temperature
sensor.(CN_ROOM)
Fixing
screws
60 mm
Step 3. Separately, set the option code of the attached controller
on the indoor unit.
In detail, refer to "installer setting mode".
Step 4. The Connection wire does not matter if you change the color of the wire because of
non-polar.
Step 5. Integrate the remote temperature sensor with the screws as the order of arrows.
Fixing the Remote Sensor
1
2
!
CAUTION
1. Choose the place where the average temperature can be measured for the indoor unit operates.
2. Avoid direct sunlight.
3. Choose the place where the heating devices do not affect the remote sensor.
4. Choose the place where the outlet of the cooling fan do not affect the remote sensor.
5. Choose the place where the remote sensor isn't affected when door is open.
Hydro Kit Installation Manual 43
ENGLISH
Remote Temperature Sensor
Accessories Installation
3Way Valve
3way valve is required to operate sanitary water tank. Role of 3way valve is flow switching between
under floor heating loop and water tank heating loop.
General Information
Hydro Kit supports following 3way valve.
Type
SPDT
3-wire (1)
Power
Operating Mode
230 V AC
Selecting “Flow A” between
“Flow A” and “Flow B” (2)
Selecting “Flow B” between
“Flow A” and “Flow B” (3)
Supported
Yes
Yes
(1) SPDT = Single Pole Double Throw. Three wires consist of Live (for selecting Flow A), Live 1 (for
selecting Flow B), and Neutral (for common).
(2) Flow A means ‘water flow from the unit to sanitary water tank’
(3) Flow B means ‘water flow from the unit to under floor water circuit’
How to Wire 3Way Valve
Follow below procedures Step 1 ~ Step 2.
Step 1. Uncover front cover of the unit and open the control box.
Step 2. Find terminal block and connect wire as below.
3WAY VALVE
(A)
8
9
10
L
L1
N
BR
WH
BL
(W)
(U)
(N)
!
WARNING
• 3way valve should select water tank loop when electric power is
supplied to wire (W) and wire (N).
• 3way valve should select under floor loop when electric power is
supplied to wire (U) and wire (N).
3way valve
(W) : Live signal (Water tank heating) from PCB to 3way valve
(U) : Live signal (Under floor heating) from PCB to 3way valve
(N) : Neutral signal from PCB to 3way valve
!
WARNING
Mice can not be appeared to prevent entering the unit or attacking wires.
44 Hydro Kit
Accessories Installation
• Flow direction :
- Water should flow from water outlet of the unit to sanitary tank water inlet when sanitary tank
heating is selected.
- To verify the flow direction, check temperature at the water outlet of the unit and water inlet of
sanitary water tank.
- If correctly wired, these temperatures should be almost equivalent if thermal insulation of water
pipe is well performed.
• Noise or water pipe vibration while 3way valve operation
- Due to surging effect or cavitation effect, noise or water pipe vibration can be occurred while
3way valve is operating.
- In that case, check followings :
• Is water circuit (both under floor water loop and sanitary water tank loop) fully charged? If not,
additional water charging is required.
• Fast valve operation yields noise and vibration. Appropriated valve operating time is 60~90
seconds.
Hydro Kit Installation Manual 45
ENGLISH
Final Check
Accessories Installation
2Way Valve
2way valve is required to control water flow while cooling operation. Role of 2way valve is to cut off
water flow into under floor loop in cooling mode when fan coil unit is equipped for cooling operation.
General Information
Hydro Kit supports following 2way valve.
Type
Power
NO 2-wire(1)
230 V AC
NC 2-wire(2)
230 V AC
Operating Mode
Supported
Closing water flow
Yes
Opening water flow
Yes
Closing water flow
Yes
Opening water flow
Yes
(1) : Normal Open type. When electric power is NOT supplied, the valve is open.
(When electric power is supplied, the valve is closed.)
(2) : Normal Closed type. When electric power is NOT supplied, the valve is closed.
(When electric power is supplied, the valve is open.)
How to Wire 2Way Valve
Follow below procedures Step 1 ~ Step 2.
Step 1. Uncover front cover of the indoor unit and open the control box.
Step 2. Find terminal block and connect wire as below.
!
2WAY VALVE
(A)
14
L1
BR
15
L2
WH
(NO)
16
N
BL
(NC)
2way valve
(N)
CAUTION
Dew Condensation
• Wrong wiring can yield dew condensation on the floor. If radiator is
connected at the under floor water loop, dew condensation can be
occurred on the surface of the radiator.
!
WARNING
Wiring
• Normal Open type should be connected to wire (NO) and wire (N) for
valve closing in cooling mode.
(NO) : Live signal (for Normal Open type) from PCB to 2way valve
(NC) : Live signal (for Normal Closed type) from PCB to 2way valve
(N) : Neutral signal from PCB to 2way valve
Final Check
• Flow direction :
- Water should not flow into under floor loop in cooling mode.
- To verify the flow direction, check temperature at the water inlet of the under floor loop.
- If correctly wired, this temperatures should not be approached to 6 °C(42 °F) in cooling mode.
46 Hydro Kit
Accessories Installation
LG Dry Contact is a solution for automatic control of HVAC system at the owner's best.
In simple words, it's a switch which can be used to turn the unit On/Off after getting the signal from
external sources like key-in lock, door or window switch etc specially used in Hotel rooms.
How to Install Dry Contact
Connect CN_DRY with Control Unit.
- To apply power source through Dry Contact PCB.
PDRYCB100
DRY CONTACT
PCB
Operation Display
CN-CC
RY2
RY1
4
3
2
1
4
3
2
1
CN_DRY
N
Error Check Display
Dry contact
Controller
L
2 2
1 1
INPUT
220 - 240 V
LG does not
supply this section
- To apply power source directly to external source.
DRY CONTACT
CONTACT
DRY
PCB
PCB
CN-CC
RY2
RY1
4
3
2
1
CN_DRY
4
3
2
1
Operation Display
Error Check Display
Dry contact
Controller
L
N
2 1
2 1
220 - 240 V
LG does not
supply this section
Hydro Kit Installation Manual 47
ENGLISH
Dry Contact
Accessories Installation
Setting of Contact Signal Input
PDRY300
COOL
LOW
MIDDLE
HIGH
LOW
MIDDLE
HIGH
HEAT
HEAT
COOL
COMM
FAN
Operation
COMM
FAN
Themal
COMM
n For input contact closure only(No power input)
Thermostat
LG does not
supply this section
(Field supply)
Notes
Do not input the voltage signal in
"NON VOLT" setting mode otherwise
it will cause serious damage
Connect separate
External voltage of
DC 12 V, AC 24 V
48 Hydro Kit
Operation
Themal
COMM
n For input contact voltage : DC 12 V, AC 24 V
Thermostat
LG does not
supply this section
(Field supply)
Accessories Installation
If you require to operate control depending on external digital input(ON/OFF), connect cable to
indoor PCB(CN_EXT).
Follow below procedures step 1 ~ step 4.
Step 1. Check if the power of the unit is turned off.
Step 2. Disassemble front panels and distinguish control box(Indoor) of the unit
Step 3. Connect the external controller to PCB(CN_EXT) completely.
Step 4. Connect the cable and field installation part.
Indoor PCB
CN_EXT
Adapter Cable
Installation example #1
• SW : Single pole switch
- Select a part with contacts for extremely low
amperage
- DC 5 V ~ 12 V is used at the contact point
- Switch load is approximately 0.5 ~ 1 mA
Indoor Unit
0.5 m
PCB
CN_EXT
Max 10 m
SW
Supplied Part
• Control cable
- Cable size : 22 to 26 AWG
- Don’t extend the cable more than 10 meters
Field Installation Part
Installation example #2
• X : Relay(a point of contact, fixed DC 0.5 ~ 1 mA)
• SW : Distance ON/OFF switch
• Control cable(Indoor unit to Relay Circuit)
- Cable size : 22 to 26 AWG
- Don’t extend the cable more than 10 meters
Relay Circuit
Indoor Unit
CN_EXT
PCB
0.5 m
Max 10 m
X
Supplied Part
X
SW
Power
supply
of relay
Field Installation Part
Determining the purpose of CN_EXT
Setting value: 0 ~ 5 step Indoor CN-EXT port setting
- 0: default
- 1: Simple operation on / off
- 2: Dry contact (simple contact)
- 3: Emergency stop only for indoor unit
- 4: Reattachment / absence
- 5: Emergency stop of all indoor units (It can be set only when indoor unit has emergency stop
function)
Hydro Kit Installation Manual 49
ENGLISH
External Controller
Accessories Installation
External pump
External pump can be required when the room to take floor heating is too large or not
well-insulated.(potential free) Also, External pump is installed with buffer tank to retain sufficient
capacity.
How to install external pump
Follow below procedures step 1 ~ step 3.
Step 1. Check if the power of the unit is turned off.
Step 2. Disassemble front panels and distinguish terminal block in Indoor PCB.
Step 3. Connect signal cable to terminal block (TB_EXT_PUMP) fully.
Indoor PCB
TB_W_PUMP_C
Contact Signal
(Non Voltage)
Relay Power Source
(30 V DC / 1 A, 250 V AC / 1 A)
Relay
External Pump
50 Hydro Kit
Accessories Installation
Wi-fi modem enables remote system operation from smartphone. Available functions include
selection of on/off, operation mode, DHW heating, temperature setup and weekly scheduling etc.
How to install Wi-fi Modem
[Parts of Wi-fi modem]
Wi-fi modem body
USB Cable
Extension Cable
Follow below procedures step 1 ~ step 5.
Step 1. Check if the power of the unit is turned off.
Step 2. Disassemble front panels and distinguish control box(Indoor) of the unit.
Step 3. Connect the USB cable to the indoor unit PCB (CN_WF ; Blue) until it clicks into place.
CN_WF
CN_WF
CN_WF
Step 4. Connect the Wi-Fi modem to
the USB
cable
fully.
Step 5. Refer to the image below to install the Wi-Fi modem in the marked position.
CN_WF
Indoor
PCB
Indoor
Indoor
PCB PCB
Indoor PCB
USB Cable
Hydro Kit Installation Manual 51
ENGLISH
Wi-fi Modem
Accessories Installation
Smart Grid
This product provides SG Ready function for users. It enables to stop internal operation (Heating /
DHW) and control target temperature depending on input signal from power provider.
How to install smart grid
Follow below procedures step 1 ~ step 3.
Step 1. Check if the power of the unit is turned off.
Step 2. Disassemble front panels and distinguish terminal block in Indoor PCB.
Step 3. Connect signal cable to terminal block in PCB (TB_SG2, TB_SG1) fully as shown below.
Indoor PCB
TB_SG2
52 Hydro Kit
TB_SG1
System Set-Up
As Hydro Kit is designed to satisfy various installation environment, it is important to set up system
correctly. If not configured correctly, improper operation or degrade of performance can be expected.
DIP Switch Setting
!
CAUTION
Turn off electric power supply before setting DIP switch
• Whenever adjusting DIP switch, turn off electric power supply to avoid electric shock.
General Information
Indoor PCB
ON
SW1
1
2
3
4
2
3
4
2
3
4
OFF
1 2 3 4 5 6 7 8
1 2 3 4
ON
SW2
1
5
6
7
8
OFF
1 2 3 4
ON
SW3
1
OFF
OFF is selected
ON is selected
Hydro Kit Installation Manual 53
ENGLISH
System Set-Up
System Set-Up
For Medium Temperature
Option Switch 2
x : OFF ●: On
DIP switch setting
1 2 3 4 5 6 7 8
x
Group Control
●
x x
x ●
Installation
Scene
● x
● ●
x
Operation
Mode Setting
●
x
Flow Switch
Detection
●
x x
x ●
Electric Heater
● x
Setup
● ●
x
Thermostat
Connection
●
Description
Function
Default
Master
Slave
Floor Heating
Floor Heating + Hot Water
Floor Heating + Hot Water + Solar
Hot Water
Heating Only
Heating / Cooling
Always
While water pump is on
Not Use
○
○
○
○
○
Reserved (Don’t Select)
Not installed
Installed
○
For High Temperature
Option Switch 2
x : OFF ●: On
DIP switch setting
1 2 3 4 5 6 7 8
x
Group Control
●
x x
x ●
Installation
Scene
● x
● ●
x
Operation
Mode Setting
●
x
Flow Switch
Detection
●
x x
x ●
Electric Heater
● x
Setup
● ●
x
Thermostat
Connection
●
Description
54 Hydro Kit
Function
Default
Master
Slave
Floor Heating
Floor Heating + Hot Water
Reserved (Don’t select)
Hot Water
Heating Only
Reserved (Don’t Select)
Always
While water pump is on
Not Use
○
○
○
○
○
Reserved (Don’t Select)
Not installed
Installed
○
System Set-Up
x : OFF ●: On
Description
Sensor Selection
1
x
●
DIP switch setting
2
3
4
x
●
Antifreeze
Operation mode
Function
Default
Sensor (Air) in Hydro Kit (RS3)
Air Sensor (PQRSTA0)
Not Use (connect short key)
Use (disconnect short key)
○
○
For High Temperature
Option Switch 3
x : OFF ●: On
Description
Sensor
Selection
1
x
●
DIP switch setting
2
3
4
Function
Default
Sensor (Air) in Hydro Kit (RS3)
Air Sensor (PQRSTA0)
○
※ short key
- Medium Temp. : CN_FLOW2
- High Temp. : Not Available
!
CAUTION
After adding brine(Anti-freeze) only the Water circuit can be set to Anti
Freeze mode. Otherwise the product may malfunction due to freezing
and bursting.
!
WARNING
Do not add brine(Anti-freeze) during Hot water mode.
Hydro Kit Installation Manual 55
ENGLISH
For Medium Temperature
Option Switch 3
System Set-Up
Group Control Setting
Group Control
- Wired remote controller 1 + Many of Hydro Kit
LGAP Network System
Slave
Master
Display Error Message
Slave
Slave
Only connect serial signal and GND lines
between slave indoor unit
GND
Signal
12 V
OK
Master
- DIP Switch in PCB
¿ Master Setting
- No. 1 Off
¡ Slave Setting
- No. 1 On
1. It is possible to connect 16 indoor units(Max) by one wired remote controller.
Set only one indoor unit to Master, set the others to Slave.
2. It is possible to connect Dry Contact and Central controller at the same time.
- The Master indoor unit is possible to recognize Dry Contact and Central Controller only.
- In case of Central controller setting, the Central controller can control indoor units after setting
only the address of master indoor unit.
- Slave indoor unit will be operated like master indoor unit.
- Slave indoor unit can not be individually controlled by Central controller.
- Some remote controller can’t perform with Dry Contact and Central controller at the same time.
So contact us further information about it.
3. When using hot water mode, it can be operated by connecting temperature sensor to Master PCB
only.
56 Hydro Kit
System Set-Up
CAUTION
• Indoor unit(Hydro Kit)’s group setting is possible which connected same outdoor unit.
• To install Master and Slave indoor unit, the DIP Switch setting should be same.
• Group control is not possible between hydro kit and air conditioner.
• Group control is not possible between mid temperature hydro kit and high temperature hydro kit.
4. In case that the indoor unit has an abnormal problem an error code will be displayed on the wired
remote controller.
With the exception of the indoor unit with the error, you can control each indoor unit individually.
5. In case of Group Control, it is possible to use following functions.
- Selection of operation options (operation/stop/mode/set temperature)
- It is not possible at some functions.
h Master/Slave setting of indoor units be set possible using a PCB DIP Switch.
h It can be the cause of malfuctions when there is no setting of master and slave.
Accessories for group control setting
- Accessories for group control setting
Indoor unit 2 EA +Wired remote controller
❈ PZCWRCG3 cable used for connection
Slave
Master
PZCWRCG3
OK
Master
Hydro Kit Installation Manual 57
ENGLISH
!
System Set-Up
NOTICE
Emergency Operation
• Definition of terms
- Trouble : a problem which can stop system operation, and can be resumed temporally under
limited operation without certificated professional's assist.
- Error : problem which can stop system operation, and can be resumed ONLY after certificated
professional's check.
- Emergency mode : temporary heating operation while system met Trouble.
• Objective of introducing 'Trouble'
- Not like airconditioning product, Air-to-Water heat pump is generally operation in whole winter
season without any system stopping.
- If system found some problem, which is not critical to system operating for yielding heating
energy, the system can temporarily continue in emergency mode operation with end user's
decision.
• Classified Trouble
- Trouble is classified two levels according to the seriousness of the problem : Slight Trouble and
Heavy trouble
- Slight Trouble : a problem is found inside the 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 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 unit.
- Option Trouble : a problem is found for option operation such as water tank heating. In this
trouble, the troubled option is assumed as if it is not installed at the system.
• When the AWHP has any trouble,
(1) If there is not a function to judge possibility of operation :
Once an error occurs mainly in indoor unit, AWHP stops. On the other hand, Remocon allows
the product to activate On/ Off operation. (On : emergency operation)
- Slight / Heavy trouble : Heating Operable only
- Critical trouble : Full stop
- Treatment priority : Critical>Heavy>Slight
(2) If there is a function to judge possibility of operation :
Depending on the status of slight / heavy / critical trouble, pop-up phrase is guided separately
on display.
- Slight trouble : Heating/Cooling Operable
- Heavy trouble : Heating Operable only
- Critical trouble : Service center request
AWHP operates when user pressed OK button on pop-up window.
58 Hydro Kit
System Set-Up
• Emergency operation is not automatically restarted after main electricity power is reset.
- In normal condition, the product operating information is restored and automatically restarted after
main electricity power is reset.
- But in emergency operation, automatic re-start is prohibited to protect the product.
- Therefore, user must restart the product after power reset when emergency operation has been
running.
Hydro Kit Installation Manual 59
ENGLISH
• Duplicated 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 DHW heating can be impossible in emergency operation mode.
When DHW is not warming up while emergency operation, please check if DHW sensor and
related wiring are all OK.
System Set-Up
Installer Setting
How to enter installer setting mode
• In the menu screen, press [<, >(left/right)] button to select the setting category, and press [∧(up)]
button for 3 seconds to enter the password input screen for the installer setting.
• Input the password and press [OK] button to move to the installer setting list.
!
CAUTION
The installer setting mode is the mode to set the remote controller’s detail function. If the installer
setting mode is incorrectly set, it may cause product failure, user’s injury, or property damage. It
must be set by the installation specialist with the installation license, and if it is installed or changed
without installation license, all problems caused will be the responsibility of the installer, and may
void the LG warrenty.
OK
OK
h Installer setting password
Main screen → menu → setting → service → RMC version information → SW Version
Example) SW version : 1.00.1 a
In the above case, the password is 1001.
Note:
Some categories of the installer setting menu may not be available depending on the product
function or the menu name may be different.
60 Hydro Kit
System Set-Up
ENGLISH
Summary
• You can set the product user functions.
• Some functions may not be displayed/operated in some product types.
Range
Function text inside
remote
Test Run
Mid Temp.
Cool test run
Short explanation
High Temp.
Test run operates Multi V in Cooling mode
for max 18 minutes.
N/A
N/A
Only for factory testing, cannot change
standby timer compressor restart after
Thermo-Off
Select Temperature
Sensor
Control Standard
- Air temperature(Air)
- Leaving water temp.(Water) (Default)
Sensor Location
- Remote control
- Indoor Unit
Selecting the reference sensor (Air/Water)
for control.
Dry Contact Mode
- Manual
- Auto (default)
Selecting the initial state of the product
when a dry contact signal is input.
Hexa-decimal address
- 00~FF (default : 00)
When Central Controller is installed,
address assigning is set by this function.
- Master
- Slave (default)
Override master/slave selection function
is to prevent the unit’s different mode
operation. If the unit is set as the slave, it
is blocked to a change of opposite
operating mode(cooling/heating).
Test Run
Checking whether water circulation is
normal.
- Upper Limitation 24 °C ~ 30 °C
(30 ℃ default)
N/A
- Lower Limitation 16 °C ~ 22 °C
(18 ℃ default)
Adjusting range of 'Setting Air
Temperature' in cooling mode
3 Minutes delay
Central Control Address
Override Master/Slave
Pump test run
Air cooling set temp.
FCU is not installed
- Upper limitation 20 ℃ ~ 25 ℃
(24 ℃ default)
- Lower limitation 16 ℃ ~ 20 ℃
(16 ℃ default)
Water cooling set temp.
FCU is installed
- Upper limitation 20 ℃ ~ 25 ℃
(24 ℃ default)
- Lower limitation 5 ℃ ~ 20 ℃
(5 ℃ default)
Air heating set temp.
Water heating set temp.
DHW set temp.
Adjusting range of 'Setting Leaving Water
Temperature' in cooling mode
N/A
- Upper Limitation 24 °C ~ 30 °C - Upper Limitation 24 °C ~ 30 °C
(30 ℃ default)
(30 ℃ default)
Adjusting range of 'Setting Air
- Lower Limitation 16 °C ~ 22 °C - Lower Limitation 16 °C ~ 22 °C Temperature' in heating mode
(16 ℃ default)
(16 ℃ default)
- Upper Limitation 35 °C ~ 50 °C - Upper Limitation 50 °C ~ 80 °C
(50 ℃ default)
(80 ℃ default)
Adjusting range of 'Setting Heating Flow
- Lower Limitation 20 °C ~ 34 °C - Lower Limitation 30 °C ~ 46 °C Temperature' in heating mode
(20 ℃ default)
(46 ℃ default)
- Upper limitation 50 °C
(50 ℃ default)
- Lower limitation 30 °C ~ 40 °C
(40 ℃ default)
- Upper limitation 50 °C ~ 80 °C
(80 ℃ default)
- Lower limitation 30 °C ~ 45 °C
(45 ℃ default)
Adjusting range of 'Setting DHW tank
Heating Flow Temperature' in domestic
hot water tank heating mode.
Hydro Kit Installation Manual 61
System Set-Up
Range
Function text inside
remote
Mid Temp.
High Temp.
Short explanation
Cooling / Heating only
mode
- Set
- Release (Default)
Oil recovery option Type 0, 1 (Default 0)
Setting the operation mode lock function.
Water supply off temp.
during cooling
- Water stop temperature
16 °C ~ 25 °C (16 ℃ default)
- FCU use/not use (use default)
N/A
When cooling the floor, it is necessary to
stop the supply of cold water to prevent
bottom dew.
Outdoor temp. for auto
mode
- Upper limitation 10 °C ~ 20 °C
(15 ℃ default)
- Lower limitation -20 °C ~ 5 °C
(-10 ℃ default)
- Upper limitation 10 °C ~ 20 °C
(15 ℃ default)
- Lower limitation -20 °C ~ 5 °C
(-10 ℃ default)
Setting outdoor Min/Max temperature for
auto mode.
- Upper limitation 20 °C ~ 30 °C
Indoor air temp. for auto (21 ℃ default)
mode
- Lower limitation 16 °C ~ 19 °C
(16 ℃ default)
- Upper limitation 20 °C ~ 30 °C
(21 ℃ default)
- Lower limitation 16 °C ~ 19 °C
(16 ℃ default)
Setting indoor Min/Max temperature for
auto mode
- Upper limitation 35 °C ~ 50 °C
(50 ℃ default)
- Lower limitation 20 °C ~ 34 °C
(20 ℃ default)
- Upper limitation 65 °C ~ 80 °C
(80 ℃ default)
- Lower limitation 40 °C ~ 54 °C
(50 ℃ default)
Setting heating flow Min/Max temperature
for auto mode
N/A
- Disable(default), Enable
Setting start/maintain time for
pasteurisation
N/A
- Sun. , Mon. , … , Fri. , Sat.
(Default : Fri.)
Setting start/maintain day for
pasteurisation
N/A
- Start Time : 00 ~ 23
(Default : 23)
Setting start/maintain time for
pasteurisation
N/A
- 40 °C ~ 80 °C (70 °C Default)
The temperature set point during
disinfection operation.
N/A
When the distinfection tank temperature is
- 5 min ~ 60 min (10 min Default) reached, the BSH continu to operate
regarding this timer.
N/A
- 1~12 hours (1 hour default)
LWT for auto mode
Tank disinfection
setting 1
Tank disinfection
setting 2
N/A
Function for AWHP except for Hydro Kit.
When it is necessary to change the
weight of heating water source in the hot
water tank depending on the user's
environment. The value for determining
the minimum temperature for maintaining
the hot water.
N/A
Function for AWHP except for Hydro Kit.
When it is necessary to change the
weight of heating water source in the hot
water tank depending on the user's
environment. Upper temperature limit for
outdoor unit.
N/A
Function for AWHP except for Hydro Kit.
Hysterisis value to maintain the desired
temperature of hot water.
- 00 : Perform hot water
- 01 : Perfom heating floor
Setting heating demand priority.
Tank setting1
Tank setting2
62 Hydro Kit
When the disinfection tank temperature is
not reached, stop disinfect regarding this
timer.
System Set-Up
DHW time setting
Range
Mid Temp.
High Temp.
Short explanation
- Operation Holding Time 5 min ~ - Operation Holding Time 5 min ~
95 min (30 min Default)
95 min (30 min Default)
Set the hot water maintenance /
- Stop Holding Time 0 min ~
- Stop Holding Time 0 min ~
suppression time.
600 min (180 min default)
600 min (30 min default)
Pump frequency setting - 15 LPM ~ 92 LPM
(LPM)
(46 LPM Default)
N/A
Setting for water flow rate in water piping.
TH on/off Variable,
heating air
- Type : 0, 1, 2, 3 (Default 0)
The temperature of the heating air can be
adjusted according to the field
environment preparing for heating claims.
TH on/off Variable,
heating water
- Type : 0, 1, 2, 3 (Default 0)
The temperature of the heating water can
be adjusted according to the field
environment preparing for heating claims.
TH on/off Variable,
cooling air
- Type : 0, 1, 2, 3 (Default 0)
N/A
The temperature of the cooling air can be
adjusted according to the field
environment preparing for cooling claims.
TH on/off Variable,
cooling water
- Type : 0, 1, 2, 3 (Default 0)
N/A
The temperature of the cooling water can
be adjusted according to the field
environment preparing for cooling claims.
It is a function to set the step value to
adjust the hot water temperature thermal
on / off according to the field environment.
TH on/off Variable, DHW - Type : 0, 1, 2, 3 (Default 0)
Heating temp. setting
- 00 : Leaving (Default)
- 01 : Entering
Cooling temp. setting
- 00 : Leaving (Default)
- 01 : Entering
It is a function to set the water pipe
temperature control standard for heating
in accordance with the field environment.
N/A
It is a function to set the water pipe
temperature control standard for cooling
in accordance with the field environment.
- Type : Time, Always (Time default)
Pump setting in heating - OFF Time : 1 min ~ 60 min (1 min default)
- ON Time : 1 min ~ 60 min (2 min default)
It is a function to set water pump
operation / delay time option for heating.
- Type : Time, Always
(Always default)
- OFF Time : 1 min ~ 60 min
Pump setting in cooling
(1min default)
- ON Time : 1 min ~ 60 min
(2 min default)
It is a function to set water pump
operation / delay time option for cooling.
Forced operation
CN_CC
Smart Grid (SG)
N/A
- Value 1 : ON , OFF(On Default)
- Value 2 Forced Period : 20 ~ 180 hr (20 hr Default)
- Value 3 Pump Operating Time : 1 ~ 10 min (10 min Default)
It is a function to deactivate the logic that
drives the water pump itself.
- D/C (Dry Contact) Automatic (Default)
- D/C (Dry Contact) Not installed
- D/C (Dry Contact) installed
Function should be set correct depending
on optional dry-contact.
- Not Use (Default)
- Use
- Step 0, Step 1 , Step 2 (Mode Selection)
The function to enable / disable the SG
Ready function and to set the reference
value at the step 2.
Hydro Kit Installation Manual 63
ENGLISH
Function text inside
remote
System Set-Up
Range
Function text inside
remote
Mid Temp.
High Temp.
Short explanation
Data logging
The error history of the connected indoor
unit can be inquired.
Password Initialization
If you forget the user setting password,
you can initialize it in the installer settings.
Refrigerant Leak Sensor
- Not Installed (Default)
- Installed
The installation of the flare coupling part
and the welding part leakage sensor of
the indoor unit is set.
Check the result of Auto Addressing of
outdoor unit with remote control.
IDU Address Verification
Not use (default)
- Simple Operation
- Simple Dry Contact
- Single emergency stop
- All emergency stop
Depending on DI / DO set by customer
using dry contact port of indoor unit
Function to set external input and output
control.
ODU Function Master
- mastar
- slave (slave default)
Setting of outdoor function Setting
function of Master / Slave.
Low Noise Mode Priority
- ODU (ODU default)
- RMC
Function to set low noise mode control
subject.
ODU cycle priority
- Not use (Not use default)
- Standby
Function to enable or disable the standby
mode of the indoor unit.
Use External Pump
- Not use (Not use default)
- Use
Function to set the control of external
water pump.
- Prerun : 1~10 min
(1 min default)
- Overrun : 1~10min
(1 min default)
Function to circulate the heating water
with a water pump before heat exchange
and set it to reach the appropriate flow
rate.
- Clear (Clear default)
- Set
Wired remote control The function to set
whether to display the estimated amount
of power calculated by the product on the
screen.
CN_EXT
Pump Prerun/Overrun
Estimated energy display
Pump operation time
Indicates the operation time of the water
pump installed in the indoor unit, and
measures the life of the motor.
IDU operation time
The function to display the operating time
and to measure the life of the product.
!
CAUTION
There is no disinfection function in Medium Temperature Hydro Kit. So, external control equipment
should be installed for disinfection function.
64 Hydro Kit
System Set-Up
• Test Run
Test run should be performed when charging the additional refrigerant is required. The unit must be
operated in Cooling mode when the refrigerant is being charged. Test run instantly makes the unit
operate in Cooling mode for 18 minutes.
Note: • If you press any kind of button during this mode, Test Run mode will be finished.
• After the unit operates under Test run mode for 18 minutes, it will be turned off
automatically
• 3 Minutes Delay
Temporarily eliminates the 3-minute delay function of the outdoor unit Comp.
- Factory use only
• Select Temperature sensor
The product can be operated according to air temperature or leaving water temperature. The
selection for setting temperature as air temperature or leaving water temperature is determined.
Note : Air temperature as setting temperature is ONLY available when Remote Air Sensor
Connection is enabled and Remote Air Sensor Connection is set as Air temperature.
After selecting Air Temperature, select Remote control and Indoor Unit.
• Dry Contact Mode
This function allows the Dry contact-indoor unit operate under Auto Run mode or Manual mode
with remote control panel.
For dry contact mode related detail functions, refer to the individual dry contact manual.
What is dry contact?
It means the contact point signal input when the hotel card key, human body detection sensor, etc.
are interfacing with the air conditioner. Added system functionality by using external inputs (dry
contacts and wet contacts).
• Central Control Address
When Central Controller is installed, address assigning is set by this function.
- Setting value: 00 ~ FF (Hex)
first digits: Central control group number
last digits: Central control indoor unit number
• Override Master/Slave
Override master/slave selection function is to prevent the unit’s different mode operation. If the unit
is set as the slave, it blocks a change of opposite operating mode(cooling/heating).
* To use override master/slave selection function is only possible when units are connected in
series to the outdoor unit.
• Pump test run
The pump test run is the function to test run by operating the water pump. This function can be
used for air vents / flow sensors and others.
Hydro Kit Installation Manual 65
ENGLISH
Common Setting
System Set-Up
Temperature Range Setting
• Air cooling set temp.
Determine cooling setting temperature range when air temperature is selected as setting
temperature.
NOTICE
Only available when remote air temperature sensor is connected.
• Accessory PQRSTA0 should be installed.
• Also, Remote air sensor connection should be set properly.
• Water cooling set temp
Determine cooling setting temperature range when leaving water temperature is selected as setting
temperature.
NOTICE
Water condensation on the floor
• While cooling operation, it is very important to keep leaving water temperature higher than
16 °C. Otherwise, dew condensation can be occurred on the floor.
• If floor is in humid environment, do not set leaving water temperature below 18 °C.
NOTICE
Water condensation on the radiator
• While cooling operation, cold water may not flow to the radiator. If cold water enters to the
radiator, dew generation on the surface of the radiator can be occurred.
• Air heating set temp.
Determine heating setting temperature range when air temperature is selected as setting
temperature.
!
CAUTION
Only available when remote air temperature sensor is connected.
• Accessory PQRSTA0 should be installed.
• Also, Remote air sensor connection should be set properly.
• Water heating set temp
Determine heating setting temperature range when leaving water temperature is selected as setting
temperature.
• DHW set temp.
Determine heating setting temperature range when DHW temperature is selected as setting
temperature.
NOTICE
Only available when DHW tank feature is installed.
• DHW tank and DHW tank kit should be installed.
• DIP switch No. 2 and 3 should be set properly.
66 Hydro Kit
System Set-Up
Temperature Control Parameter Setting
• Water supply off temp. during cooling
Determine leaving water temperature when the product is turned off. This function is used fr
preventing condensation on the floor in cooling mode.
- Stop temp. : cut-off temperature. Stop temp. is valid when FCU is installed.
- FCU : determines if FCU is installed or not.
- Example : If Stop temp. is set as ‘16’ and FCU is ’Use’ and actually FCU is NOT installed in the
water loop, the unit stop operation in cooling mode when the leaving water temperature is below
16 °C.
- Example : If Stop temp. is set as ‘16’ and FCU is ’Not use’ and actually FCU is installed in the
water loop, the Stop temp. is not used and the unit do NOT stop operation in cooling mode when
the leaving water temperature is below 16 °C.
NOTICE
FCU Installation
• If FCU is used, related 2way valve should be installed and connected to the indoor unit PCB.
• If FCU is set as ‘Not use’ but FCU or 2way valve is NOT installed, the unit can do abnormal
operation.
Hydro Kit Installation Manual 67
ENGLISH
• Cooling / Heating only mode
Set the Operation mode lock when Multi V Indoor unit is used only cooling mode in summer and
Hydro Kit is used only heating in winter.
System Set-Up
• Tank disinfection setting 1, 2
Disinfection operation is special DHW tank operation mode to kill and to prevent growth of viruses
inside the tank.
- Disinfection active : Selecting enable or disable of disinfection operation.
- Start date : Determining the date when the disinfection mode is running.
- Start time : Determining the time when the disinfection mode is running.
- Max temp. : Target temperature of disinfection mode.
- Duration time : Duration of disinfection mode.
Temperature profile
of Disinfection operation
Water temperature
(Inside DHW)
Max temp
Duration time
Start time
Time
NOTICE
DHW heating should be enable
• If Disinfection active is set as ’ Not use’, that is ‘disable disinfection mode’, Start date and Start
time is not used.
• When Disinfection active is set as ’Use’, that is ‘enable disinfection mode’, Start date is
displayed at the position of Disinfection active and Start time is displayed at the position of Start
date.
68 Hydro Kit
System Set-Up
Descriptions for each parameters are as following.
- Min temp. : temperature gap from Max outdoor temp.
- Max outdoor temp. : maximum temperature generated by AWHP compressor cycle.
- Example : If Min temp. is set as ‘5’ and Max outdoor temp. is set as ’48’, then Session A (see the
graph) will be started when the water tank temperature is below 45 °C…. If temperature is above
48 °C…, then Session B will be started.
- Hysteresis : temperature gap from target DHW temperature. This value is required to frequent On
and Off of water tank heater.
- Heating priority : Determining heating demand priority between DHW tank heating and under floor
heating.
- Example : If user’s target temperature is set as ’70’ and Hysteresis is set as ‘3’, then the water
tank heater will be turned off when the water temperature is above 73 °C. The water tank heater
will be turned on when the water temperature is below 70 °C.
- Example : If Heating priority is set as ‘DHW’, that means heating priority is on DHW heating, DHW
is heated by AWHP compressor cycle and water heater. In this case the under floor can not be
heated while DHW heating. On the other hand, if the Heating priority is set as ‘Floor heating’, that
means heating priority is on under floor heating, DHW tank is ONLY heated by water heater. In
this case the under floor heating is not stopped while DHW is heated.
Water temperature
(Inside sanitary water tank)
Water heater off
temperature
Hysteresis
Target DHW
temperature (set by user)
Max outdoor temp.
Min temp.
Starting temperature
of DHW heating
Session A
Session C
Session B
Session D
Time
Session A : Heating by AWHP compressor cycle and water heater
Session B : Heating by water heater
Session C : No heating (Water heater is Off)
Session D : Heating by water heater
NOTICE
DHW heating does not operate when it is disabled.
Hydro kit only performs the heating priority function.
Hydro Kit Installation Manual 69
ENGLISH
• Tank setting 1, 2
System Set-Up
• DHW time setting
Determine following time duration : operation time of DHW tank heating, stop time of DHW tank
heating, and delay time of DHW tank heater operating.
- Active time : This time duration defines how long time DHW tank heating can be continued.
- Stop time : This time duration defines how long time DHW tank heating can be stopped. It is also
regarded as time gap between DHW tank heating cycle.
• TH on/off Variable, heating air
Setting Thermal on/off Air Temperature gap in heating mode
0
1
2
3
Th On
-0.5 ℃
-1 ℃
-2 ℃
-3 ℃
Th Off
1.5 ℃
2℃
3℃
4℃
• TH on/off Variable, heating water
Setting Thermal on/off Water Temperature gap in heating mode
0
1
2
3
Th On
-2 ℃
-3 ℃
-4 ℃
-1 ℃
Th Off
2℃
3℃
4℃
1℃
• TH on/off Variable, cooling air
Setting the step value to adjust air temperature gap in cooling mode
0
1
2
3
Th On
0.5 ℃
1℃
2℃
3℃
Th Off
-0.5 ℃
-1 ℃
-2 ℃
-3 ℃
• TH on/off Variable, cooling water
Setting the step value to adjust water temperature gap in cooling mode
0
1
2
3
70 Hydro Kit
Th On
0.5 ℃
1℃
2℃
3℃
Th Off
-0.5 ℃
-1 ℃
-2 ℃
-3 ℃
System Set-Up
Th On
-2 ℃
-6 ℃
-2 ℃
-1 ℃
0
1
2
3
Th Off
2℃
4℃
4℃
1℃
• Heating temp. setting
At the leaving water control in heating mode, the control reference water temperature position
setting.
• Cooling temp. setting
At the leaving water control in cooling mode, the control reference water temperature position
setting.
• Pump setting in heating
It is a function to help the water pump's mechanical life by putting the water pump's rest time.
Installer setting function to set water pump operation / delay time option in heating mode.
• Pump setting in cooling
It is a function to help the water pump's mechanical life by putting the water pump's rest time.
Installer setting function to set water pump operation / delay time option in cooling mode.
• Forced operation
If the product is not used for a long time, the product will be forced to operate to prevent pump
failure and PHEX freezing.
Water pump off After 20 consecutive hours, disable / enable the logic that drives the water
pump by itself.
• Pump frequency setting (LPM, For Medium Temperature)
Setting water flow rate
Determine the difference between target inlet water temperature and target outlet water
temperature from water flow rate.
Setting value
50
55
60
65
70
75
80
85
90
92
Water flow rate (l/min)
4 HP
10 HP
20~22
45~50
23~24
51~55
25~26
56~60
27~28
61~65
29~30
66~70
31~32
71~75
33~34
76~80
35~37
81~85
38~39
86~90
40
91~92
Hydro Kit Installation Manual 71
ENGLISH
• TH on/off Variable, DHW
Setting the step value to adjust DHW temperature gap in heating mode
System Set-Up
• CN_EXT
Determining the purpose of CN_EXT
Setting value: 0 ~ 5 step Indoor CN-EXT port setting
- 0: default
- 1: Simple operation on / off
- 2: Dry contact (simple contact)
- 3: Emergency stop only for indoor unit
- 4: Reattachment / absence
- 5: Emergency stop of all indoor units (It can be set only when indoor unit has emergency
stop function)
• ODU Function Master
1) Setting of outdoor unit function Master status
- Low noise operation control subject can be set
- Low noise operation time setting
- Defrost mode can be set
2) Setting of outdoor unit function Slave status
- No noise operation control subject setting
- No noise operation time setting
- No defrost mode setting
• Low Noise Mode Priority
Setting whether to control in IDU or in ODU
1) Setting outdoor management of low noise operation
It is controlled by outdoor unit according to switch setting value of low noise operation of outdoor
unit PCB.
Function Setting - Low noise operation time menu is inactivated
2) Setting remote control management of low noise operation
Low noise operation switch setting of outdoor unit PCB is ignored.
Function Setting - Low noise operation time menu is activated.
72 Hydro Kit
Test Run
ENGLISH
Test Run
Caution before Operation Test
• Check whether water flow is smoothly supplied.
• Check whether the flow switch properly operates.
• Check whether the connection status is good.
• Check whether the power cable and communication cable are completely connected.
• Check whether it is 2.0 MΩ or above, when insulation resistance between the terminal block
and ground is measured with DC mega tester (DC 500 V).
• Never check insulation resistance for the connector of the control board.
Operation Test of Water Pipe
Category
Status
Check point
Check whether operation of water pipe is normal.
Flow Switch Error
CH14
Check for the block inside water pipe.
(Strainer cleaning, valve locked, valve malfunction, air
remaining, etc.)
Check problem with flow switch.
(Flow switch disorder, untold operation, disconnection,
etc.)
Hydro Kit Installation Manual 73
Test Run
Troubleshooting
If Hydro Kit operates not properly or it does not start operation, please check following list.
Error Type
Error No.
Main Reasons
01
Air temperature sensor error
Air temperature sensor disconnection or short
circuit
02
Gas side temperature sensor error
Gas side temperature sensor disconnection or
short circuit
03
No communication between wired
remote controller & indoor unit
The remote controller does not receive the signal
from indoor unit during specific time
05
Indoor unit & outdoor unit
communication error
No signal communication between indoor unit &
outdoor unit
06
Liquid side temperature sensor error
Liquid side temperature sensor disconnection or
short circuit
08
Water tank temperature sensor error
Water tank temperature sensor disconnection or
short circuit
09
Indoor unit EEPROM error
Communication between the micro-processor &
the EEPROM / Error due to EEPROM damage
11
Indoor unit & inverter PCB
communication error
No signal communication between indoor unit &
inverter PCB
12
Inverter PCB error
Error occurrence in inverter PCB
13
Solar thermal temperature sensor
error
Solar thermal temperature sensor disconnection
or short circuit
14
Flow switch error
Abnormal working of flow switch
15
Water pipe overheated
Water outlet temperature is above 85 ℃ (185 °F)
16
Water inlet & outlet temperature
sensor error
Water inlet & outlet temperature sensor
disconnection or short circuit simultaneously
17
Water inlet temperature sensor error
Water inlet temperature sensor disconnection or
short circuit
18
Water outlet temperature sensor
error
Water outlet temperature sensor disconnection or
short circuit
187
Hydro-Kit P.HEX bursting error
Inlet water temperature is below 5 degree or
water temperature error during defrosting
operation.
74 Hydro Kit
Test Run
Error No.
Error Type
Main Reasons
21
Inverter compressor IPM defect
Inverter compressor drive IPM defect / inverter
compressor defect
22
Inverter compressor overcurrent
Increase of inverter compressor CT value
23
Inverter compressor DC Link low
voltage
25
High/low Inverter input voltage
26
Inverter compressor activation
failure
After inverter activation relay is ON, DC voltage
recharge defect
Inverter input voltage exceeds the unit limit and
lasts for 4 s (173 V ~ 289 V)
Inverter compressor error, causing initial
activation failure
27
Inverter PSC/PFC Fault Error
Error by overcurrent at inverter input
28
Inverter DC Link high voltage error
29
Inverter compressor overcurrent
32
34
35
36
40
41
42
43
44
46
53
60
62
65
73
Excessive rise of inverter
compressor discharge temperature
Excessive rise of high pressure of
inverter compressor
Excessive drop of low pressure of
inverter compressor
Low pressure ratio error of inverter
compressor
Inverter compressor CT sensor
defect
Inverter compressor discharge pipe
temperature sensor defect
Low pressure sensor defect of
inverter compressor
High pressure sensor defect of
inverter compressor
Inverter inside air temperature
sensor defect
Inverter compressor suction pipe
temperature sensor defect
Communication error(indoor unit →
outdoor unit main PCB)
Inverter DC voltage recharge, causing
compressor OFF
Inverter compressor activation failure or increase
of CT value
Excessive rise of inverter compressor discharge
temperature, causing compressor OFF
Excessive rise of high pressure of inverter
compressor, causing compressor OFF
Excessive drop of low pressure of inverter
compressor, causing compressor OFF
High pressure/low pressure ratio of inverter
compressor is maintained at below 1.8 for 3 min.
or more
Inverter compressor CT sensor defect
Inverter compressor discharge temperature
sensor disconnection or short circuit
Low pressure sensor disconnection or short
circuit of inverter compressor
High pressure sensor disconnection or short
circuit of inverter compressor
Inverter inside air temperature sensor
disconnection or short circuit
Inverter compressor suction temperature sensor
disconnection or short circuit
Outdoor unit does not receive signal from indoor
unit
Inverter PCB EEPROM error
Inverter PCB EEPROM error
Excessive rise of inverter heatsink
temperature
Inverter heatsink temperature
sensor defect
Overcurrent (Peak) detected at
inverter input
Inverter PCB heat generation, causing the rise of
heatsink temperature
Inverter heatsink temperature sensor
disconnection or short circuit
Error by overcurrent detection at inverter input
Hydro Kit Installation Manual 75
ENGLISH
Inverter PCB error ( BC *** displayed in Remote Controller)
Test Run
Airborne Noise Emission
The A-weighted sound pressure emitted by this product is below 70 dB.
• The noise level can vary depending on the site.
The figures quoted are emission level and are not necessarily safe working levels. Whilst there is a
correlation between the emission and exposure levels, this cannot be used reliably to determine
whether or not further precautions are required. Factor that influence the actual level of exposure of
the workforce include the characteristics of the work room and the other sources of noise, i.e. the
number of equipment and other adjacent processes and the length of time for which an operator
exposed to the noise. Also, the permissible exposure level can vary from country to country. This
information, however, will enable the user of the equipment to make a better evaluation of the
hazard and risk.
Limiting concentration
Limiting concentration is the limit of Freon gas concentration where immediate measures can be
taken without hurting human body when refrigerant leaks in the air. The limiting concentration shall
be described in the unit of kg/m3 (Freon gas weight per unit air volume) for facilitating calculation
Limiting concentration: 0.44 kg/m3 (R410A)
n Calculate refrigerant concentration
Total amount of replenished refrigerant in refrigerant facility (kg)
Refrigerant concentration =
Capacity of smallest room where indoor unit is installed (m3)
Model Designation
ARN
H
08
G
K3
A
4
Serial Number
Combinations of functions
A:Basic function
Chassis Name
Electrical Ratings
1:1 Ø, 115 V, 60 Hz
6:1 Ø, 220 - 240 V, 50 Hz
3:1 Ø, 208/230 V, 60 Hz
2:1 Ø, 220 V, 60 Hz
7:1 Ø, 100 V, 50/60 Hz
G:1 Ø, 220 - 240 V, 50 Hz/1 Ø, 220 V, 60 Hz
Total Cooling Capacity in HP
EX) 10 HP ➝ ‘10’ 4 HP ➝ ‘04’
Combination of Inverter Type and Cooling Only or Heat Pump
N: AC Inverter and H/P
V: AC Inverter and C/O
U: DC Inverter and H/P and C/O H: Hydro Kit
System with Indoor Unit using R410A
❈ LGETA:U Ex) URN
76 Hydro Kit
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