LG ARNH10GK2A2 Owner's manual

ENGLISH
ITALIANO
ESPAÑOL
FRANÇAIS
INSTALLATION MANUAL
DEUTSCH
AIR
CONDITIONER
PORTUGUÊS
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
Hydro Kit (For Medium Temperature)
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
For more information, Refer to the CD or LG Web site (www.lg.com).
www.lg.com
P/NO : MFL67086703
Hydro Kit Installation Manual
TABLE OF CONTENTS
1. Safety Precautions.......................................................................................................................3
2. Installation Parts ..........................................................................................................................8
3. General Information.....................................................................................................................9
Model Information ..........................................................................................................................9
General Information .....................................................................................................................10
4. Installation ..................................................................................................................................11
Selection of the best location .......................................................................................................11
Installation Space.........................................................................................................................11
Foundation for Installation ...........................................................................................................12
Water Piping and Water Circuit Connection ................................................................................13
Sanitary Water Tank and Sanitary Water Tank Kit .......................................................................17
Solar Thermal Kit .........................................................................................................................19
Installation Scenes.......................................................................................................................20
Refrigerant Piping ........................................................................................................................23
How to connect wirings................................................................................................................25
Wiring Connection .......................................................................................................................25
Connecting Cables ......................................................................................................................26
5. Accessories Installation............................................................................................................27
Location of Accessories and External Parts Connection .............................................................27
Main Pump Connection ...............................................................................................................30
Water tank temperature sensor Connection ................................................................................30
Thermostat...................................................................................................................................31
Remote Temperature Sensor.......................................................................................................36
3Way Valve ..................................................................................................................................37
2Way Valve ..................................................................................................................................39
Dry Contact..................................................................................................................................40
Independent Power Module.........................................................................................................41
6. System Set-Up............................................................................................................................43
DIP Switch Setting .......................................................................................................................43
Group Control Setting ..................................................................................................................44
Installer Setting ............................................................................................................................48
7. Test Run......................................................................................................................................55
Caution before Operation Test....................................................................................................55
Operation Test of Water Pipe.......................................................................................................55
Troubleshooting ...........................................................................................................................56
2 Hydro Kit
Safety Precautions
This symbol indicates the possibility of death or serious injury.
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.
n Installation
Always ground the unit.
For electrical work,
Do not use a defective
contact the dealer, sellor underrated circuit
breaker. Use this appli- er, a qualified electrician, or an Authorized
ance on a dedicated
Service Center.
circuit.
• There is risk of fire or
• There is risk of fire or
• There is risk of fire or
electric shock.
electric shock.
electric shock.
Install the panel and
the cover of control
box securely.
• There is risk of fire or
electric shock.
Use the correctly rated
Always install a dedicated circuit and break- breaker or fuse.
er.
• Improper wiring or instal- • There is risk of fire or
electric.
lation may cause fire or
electric shock.
Hydro Kit Installation Manual 3
ENGLISH
1. 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.
Safety Precautions
Do not modify or
extend the power cable.
• There is risk of fire or
electric shock.
For antifreeze, always
contact the dealer or an
authorized service center.
• There is risk of fire, elec- • Almost the antifreeze is
a toxic product.
tric shock, explosion, or
injury.
Do not install, remove,
or reinstall the unit by
yourself (customer).
For installation, always Do not install the unit
contact the dealer or an on a defective installation stand.
Authorized Service
Center.
• The installation tool such • There is risk of fire, elec- • It may cause injury, accident, or damage to the
tric shock, explosion, or
as manifold gauge
unit.
injury.
should be complied with
R410A.
The refrigerant of this
product is R410A.
Be sure the installation
area does not deteriorate with age.
Do not install the unit
outdoor.
• If the base collapses, the • It may cause damage to
the unit.
unit could fall with it,
causing property damage, unit failure, and personal injury.
4 Hydro Kit
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.
Safety Precautions
Do not place anything
Take care to ensure
that power cable could on the power cable.
not be pulled out or
damaged during operation.
• There is risk of fire or
• There is risk of fire or
electric shock.
electric shock.
Do not touch (operate)
the unit with wet hands.
• There is risk of fire or
electric shock.
Do not store or use
flammable gas or combustibles near the unit.
• There is risk of fire or
failure of unit.
If strange sounds, or
small or smoke comes
from unit, turn the
breaker off or disconnect the power supply
cable.
• There is risk of electric
shock or fire.
Do not place a heater
or other appliances
near the power cable.
• There is risk of fire or
electric shock.
Do not use the unit in a
tightly closed space for
a long time.
• It may cause damage to
the unit.
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 plug or unplug
the power supply plug
during operation.
• There is risk of fire or
electric shock.
Do not allow water to
run into electric parts.
• There is risk of fire, failure of the unit, or electric
shock.
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.
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.
Hydro Kit Installation Manual 5
ENGLISH
n Operation
Safety Precautions
Ventilate the unit from
Be cautious that water
When the unit is
soaked (flooded or sub- could not be poured to time to time when operating it together with a
the unit directly.
merged), contact an
stove, etc.
Authorized Service
Center.
• There is risk of fire, elec- • There is risk of fire or
• There is risk of fire or
electric shock.
tric shock, or unit damelectric shock.
age.
Turn the main power off
when cleaning or maintaining the unit.
• There is risk of electric
shock.
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.
6 Hydro Kit
For installation, always
contact the dealer or an
Authorized Service
Center.
• This could result in per- • There is risk of fire, electric shock, explosion, or
sonal injury and unit
injury.
damage.
Take care to ensure
that nobody could step
on or fall onto the unit.
Safety Precautions
ENGLISH
n Installation
Keep level even when
Always check for gas
installing the unit.
(refrigerant) leakage
after installation or
repair of unit.
• To avoid vibration or
• Low refrigerant levels
may cause failure of unit. water leakage.
Use two or more people
to lift and transport the
unit.
• Avoid personal injury.
n Operation
Use a soft cloth to
Do not use the unit for
Do not lay on the
special purposes, such clean. Do not use harsh
cooled floor for long
detergents, solvents,
time when the unit is in as preserving foods,
etc.
works of art, etc.
cooling operation.
• This could harm to your • There is risk of damage • There is risk of fire, electric shock, or damage to
or loss of property.
health.
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.
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.
• Be careful and avoid per- • A plate heat exchanger
sonal injury.
burst may happen
because of disconnection of communication
between Hydro Kit and
the outdoor unit.
Hydro Kit Installation Manual 7
Installation Parts
2. 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
ENGLISH
ITALIANO
ESPAÑOL
FRANÇAIS
INSTALLATION MANUAL
AIR
CONDITIONER
DEUTSCH
PORTUGUESE
Installation Manual
1
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.
Hydro Kit (For Medium Temperature)
Original instruction
www.lg.com
P/NO : MFL67086703
ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH ΕΛΛΗΝΙΚΆ PORTUGUÊS NEDERLANDS
OWNER’S MANUAL
Owner's Manual
AIR
CONDITIONER
Please read this manual carefully before operating
your set and retain it for future reference.
1
POLSKI
TYPE : Hydro Kit (For High Temperature)
MAGYAR
www.lg.com
P/NO : MFL67212703
Remote Cotroller
/ Cable
1
Sensor Holder
1
Water Tank Temperature Sensor
1
Strainer
1
Independent
Power Module
8 Hydro Kit
1
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
Hydro Kit
Type
Model
Unit
Power Supply
Ø, V, Hz
Cooling
Capacity
Heating
ARNH10GK2A2
ARNH04GK2A2
1, 220~240, 50
kW
28
12.3
kcal/h
24100
10580
Btu/h
95900
42000
kW
31.5
13.8
kcal/h
27100
11870
Btu/h
107500
47000
Net Weight
kg(lbs)
35(77)
Noise Level
dB
30.4(67)
26
*1 : Tested under Eurovent Heating condition (water temperature 30°C(86°F) → 35°C(95°F) at outdoor ambient temperature 7°C(44°F) / 6°C(42°F))
*2 : Tested under Eurovent Cooling condition (water temperature 23°C(73°F) → 18°C(64°F) at outdoor ambient temperature 35°C(95°F) / 24°C(75°F))
Hydro Kit Installation Manual 9
ENGLISH
3. General Information
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
Remote Air Sensor
To control the unit by air temperature
PQRSTA0
Dry Contact
To receive on & off external signal
PQDSA
Solar Thermal Kit
To operate with sanitary water tank
PHLLA
Accessories supported by 3rd party Companies
Item
Purpose
Solar
To generate auxiliary
heating energy for water tank
Thermal System
Thermostat
3way valve
and actuator
2way valve
and actuator
10 Hydro Kit
Specification
Heating-Only type
(1~ 230 V or 1~ 24 V) Cooling/Heating type
To control the unit by air temperature
(1~ 230 V or 1~ 24 V AC
with Mode selection switch)
To control water flow for hot water
heating or floor heating
3 wire, SPDT (Single Pole Double Throw)
type, 1~ 230 V
To control water flow for
Fan Coil Unit
2wire, NO(Normal Open) or NC
(Normal Closed) type, 1~ 230V
Installation
ENGLISH
4. Installation
Selection of the best location
1. 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).
520(20-17/36)
400(15-3/4)
(Unit: mm(inch))
100(3-15/16)
space
Service space
(front side)
631(24-16/19)
330(13)
600(23-5/8)
100(3-15/16)
100(3-15/16)
space
631(24-16/19)
Product
Piping space
(front side)
(Unit: mm(inch))
100(3-15/16)
H-Beam supporter
200(7-7/8)
Hydro Kit Installation Manual 11
Installation
Foundation for Installation
340(13-3/8)
• 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)).
392(15-7/16)
Anti-vibration material
Concrete
3 or more screw
base
Nut
threads of the
Support
2 bolts must be Spring washer
shown
Flat washer
75(2-15/16)
Anchor bolt
(Unit: mm(inch))
Drain pipe connection
- 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
12 Hydro Kit
Hydro kit
Installation
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.
Hydro Kit Installation Manual 13
ENGLISH
Water Piping and Water Circuit Connection
Installation
Water cycle
* For the water pipe system, use the closed loop type.
1. For the parts of the water pipe system, use the parts above the design water pressure.
2. For the water pipe, do not use steel pipe.
3. For the drain pipe (1) size, use the same diameter as the product connected or larger.
- Always install a natural drainage so that the drained water does not back flows.
4. To replace the connected device easily, install the union joint (2).
5. Install the service port (3) to clean the heat exchanger at each inlet and outlet of the water pipe.
6. Always install a strainer(4) at the inlet of the water pipe. Do not enter city 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 50 mesh or above with measurement diameter of 0.4mm or
less. (Exclude other net)
- Always install the strainer on the horizontal pipe.
(When dirt, trash, rusted pieces get into the water pipe system, it can cause problems to the
product by corroding the metallic material.)
7. Install the air vent(5) at the top of the water pipe. If the air vent is not installed at the top of the
water pipe, there would be a lot of bubble in the water pipe. So a plate heat exchanger burst
may happen because of the reduction of water flow rate(CH 14 is displayed in the remote controller) caused by a lot of bubble in the water pipe.
8. Install a thermometer (6) and pressure gauge (7) at the inlet and outlet of the water pipe.
9. Install the drain valve (8) that can be used for draining the water inside when replacing the part
or providing service.
10. Install the shut-off valve (9) to block the water by closing the valve when replacing the part or
cleaning.
11. Apply insulated treatment on the exterior of the water pipe so that water drops do not form.
12. Install excessive pressure safety valve (10) that meets the design water pressure to prevent unit
or water pipe damage at the pressure increase inside the water pipe system.
13. Install the closed loop water pipe system.
On-site installation
Pressure gauge (7)
air vent (5)
Union joint (2)
Thermometer (6)
Hydro kit
Shut-off valve (9)
Excessive pressure
safety valve(10)
Outlet Water
[Install water tank]
or
[Install floor cooling/heating]
Inlet water
Drain pipe (1)
P/T service port (3)
Strainer (4)
Drain valve (8)
CAUTION:
Please always make circulate or drain out the water completely when not using it.
14 Hydro Kit
Installation
1. Use the pump (1) with sufficient capacity to assure loss of overall water pressure and to supply
water to the Hydro Kit.
2. Install the shut-off valve (2) on both sides of the pump to clean and repair the pump.
3. Install the flexible joint (3) to prevent noise and vibration transferred from the pump.
4. Install the pressure gauge (4) to monitor the water pressure from water tank. (Option)
5. Install the expansion tank (5) to accommodate the water contracted or expanded from the temperature difference and to supply the water.
6. After the installation of water pipe system is completed, open the water supply valve (6) and supply the water.
7. When installing the water tank, insert the water tank temperature sensor (7) to measure the temperature of the water inside the tank.
- For the water tank temperature sensor, use the sensor supplied on the product.
- When heating the floor, measure the temperature by using the remote controller or remote temperature sensor (Separately sold).
8. Use the water tank (9) with the heat exchange coil (8) installed so that the heat can be exchanged
sufficiently inside the tank.
Installation of water tank
shut-off valve (2)
Pump (1)
Flexible joint (3)
water tank
temperature sensor (7)
Expansion tank (5)
Heat
exchange
coil (8)
water tank (9)
(Indirect heating type)
Water supply valve (6)
Pressure gauge (4)
Installation of floor heating
shut-off valve (2)
Pump (1)
Flexible joint (3)
Expansion tank (5)
Floor heating coil
(Radiator, FCU can be used)
Water supply valve (6)
Pressure gauge (4)
Hydro Kit Installation Manual 15
ENGLISH
* WATER TANK & FLOOR HEATING INSTALLATION
Installation
Strainer
- Use the 50 mesh strainer.
(Exclude scale diameter of 0.4mm 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
16 Hydro Kit
Strainer
Side
Installation
Installation Condition
Installing sanitary water (DHW) tank requires following considerations :
• Sanitary water tank should be located at the flat place.
• Water quality should comply with EN 98/83 EC Directives.
• As this water tank is sanitary water tank (indirect heat exchange), do not use anti water-freezing
treatment like ethylene grycol.
• It is highly recommend to wash out inside of the sanitary water tank after installation. It ensures
generating clean hot water.
• Near the sanitary water (DHW) tank , there should be water supply and water drain for easy access and maintenance.
* DHW : Domestic Hot Water
Water Tank
Temperature Sensor
Water Out
Water In
Sanitary water
(DHW) tank
Water tank temperature sensor connection
• If hot water mode is used, make sure to install
sensor to water tank.
Process PT 1/2 inch
female bolt
Water Tank
Temperature Sensor
• Make PT15A female bolt hole in the water tank,
and install sensor in the water tank.
Sensor
holder
Inside water tan
• Push the sensor into the hole of the sensor holder
cap.
• Lock the sensor holder cap.
PT 1/2 inch
Water tank outer wall
Hydro Kit Installation Manual 17
ENGLISH
Sanitary Water Tank and Sanitary Water Tank Kit
Installation
WARNING :
Installing recirculation pump
When Hydro Kit is used with the sanitary water tank, it is STRONGLY recommended to install
recirculation pump to prevent cold water at the end of hot water supply flooding out and to
stabilize the water temperature inside the sanitary water tank.
- The recirculation pump should be operated when sanitary water demand is not required.
Therefore, external time scheduler to determine when the recirculation pump should turn on
and turn off is required.
- The operating duration time of the recirculation pump is calculated as follow :
Duration time [minute] = k * V / R
k : 1.2 ~ 1.5 is recommended.
(If distance between pump and tank is far, then choose high number.)
V : Volume of sanitary water tank [liter]
R : Water flow rate of pump [liter per minute], which is determined by pump performance
curve.
- The pump operating start time should be prior to the sanitary water demand.
Hot water supply
Shower
(End of Hot
water supply)
Recirculation
Pump
Water Out
External
Time Scheduler
Water In
Sanitary water
(DHW) tank
18 Hydro Kit
City water
Installation
ENGLISH
Solar Thermal Kit
How to Install Solar Thermal Kit
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’s 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.
Solar Thermal Sensor
(less than 5 meter)
3way valve
(Field Supply)
Solar
Thermal
System
Water Out (Field Supply)
Water In
Water Tank Sensor
(less than 5 meter)
Pump
(Field Supply)
Water Out
Solar
Collector
(Field Supply)
Water In
Water Tank
Hydro Kit Installation Manual 19
Installation
Installation Scenes
Some installation scenes are presented for example. As these scenes are conceptual figures, installer should optimize the installation scene according to the installation conditions.
This is a simple concept diagram. Refer to the water cycle(page 12~13) for installation components.
1) Floor Heating only (Without mixing tank)
M
Fan coil unit
Floor heating loop
Radiator
2) Floor Heating only (With mixing tank)
M
Fan coil unit
Floor heating loop
Radiator
WARNING
At the installation site where Hydro Kit is combined with a mixing tank, each water-circulation
pump(one is installed between Hydro Kit and the mixing tank, the other is installed between the
mixing tank and indoor units(FCU, Radiator and so on)) should be always operated simultaneously to protect mixing tank from risk of freezing and bursting.
All of pumps should be linked with Hydro Kit.
20 Hydro Kit
Installation
ENGLISH
3) Floor Heating + Hot water
M
Fan coil unit
Hot water
Floor heating loop
Radiator
Sanitary
water
tank
City water
4) Floor Heating + Hot Water + Solar Thermal
Pump
M
3way valve
M
2way valve
B
Bypass valve
Solar heat source
Fan coil unit
Floor heating loop
Radiator
Hot water
Sanitary
water
tank
City water
Water Quality
Water quality should comply with EN 98/83 EC Directives. Requirement for resolved chemical ingredients is following table. Detailed water quality condition can be found in EN 98/83 EC Directives.
Parameter
Acrylamide
Antimony
Arsenic
Benzene
Benzo(a)pyrene
Boron
Bromate
Cadmium
Chromium
Copper
Cyanide
1.2-dichloroethane
Epichlorohydrin
Value
0.10 μg/l
5.0 μg/l
10 μg/l
1.0 μg/l
0.010 μg/l
1.0 mg/l
10 μg/l
5.0 μg/l
50 μg/l
2.0 mg/l
50 μg/l
3.0 μg/l
0.10 μg/l
Parameter
Value
Fluoride
1.5 mg/l
Lead
10 μg/l
Mercury
1.0 μg/l
Nickel
20 μg/l
Nitrate
50 mg/l
Nitrite
0.50 mg/l
Pesticides
0.10 μg/l
Pesticides — Total
0.50 μg/l
Polycyclic aromatic hydrocarbons
0.10 μg/l
Selenium
10 μg/l
Tetrachloroethene and Trichloroethene
10 μg/l
Trihalomethanes — Total
100 μg/l
Vinyl chloride
0.50 μg/l
Hydro Kit Installation Manual 21
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
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)
12%
17%
6%
-10℃(14℉)
20%
25%
12%
-15℃(5℉)
30%
33%
16%
-20℃(-4℉) -25℃(-13℉)
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.
22 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 1.5m 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
0.2kgf/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(Ø9.52)
Thickness
t9 or above
Gas pipe(Ø22.2 - 4HP
Ø15.88 - 8HP)
t19 or above
Inside product
Panel Insulation
Copper
tube
h The thickness of the above insulation material
is based on thermal conduction rate of
0.036W/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 23
Installation
Precaution when connecting Heat Recovery systems
Gas pipe Ø15.88
Liquid pipe Ø9.52
Welding type
Hydro kit
Gas pipe Ø22.2
Liquid pipe Ø9.52
- 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
16kW (54kBut/h) capacity model: ARNH10GK2A2).
- 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 (ARNH10GK2A2
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
Hydro Kit
Not control
No.1, 2 Valve
Control
No.1, 2 Valve
/
No.3, 4 Valve
Control
(When two Hydro Kit are installed)
Pipe searching process
1. When Pipe searching process is performed,
- Use ‘Mode 1’ if water temperature is higher than 30℃(86℉)
- Use ‘Mode 2’ if water temperature is lower than 30℃(86℉)
2. When Pipe searching process is not performed,
- Check whether ‘CH14’ error occurs in the Hydro Kit.
For more detailed information, refer to the installation manual of Heat Recovery Unit.
24 Hydro Kit
Installation
ENGLISH
How to connect wirings
Remove the box cover of electric parts and connect the wiring.
CAUTION:
When connecting the power and communication
cable, always use the terminal connector (Oring, Y-ring).
Communi-
Ground
cation cable
Power Communicable cation cable
Power cable
Make sure to tighten so that the screw of the terminal does not get loose.
Wiring Connection
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.
Terminal block
of indoor unit
1(L)
2(N)
Terminal block
of indoor unit
3(A)
4(B)
Outdoor unit Indoor unit
SODU SODU IDU
Power cable
IDU INTERNET
Central controller
DRY1
DRY2
GND
12
Outdoor
unit
Communication cable
WARNING : Make sure that the screws of the terminal are free from looseness.
CAUTION:
After checking the above status, prepare for the following wiring :
1) Use individual power for the unit and refer to the circuit diagram posted on the inside of the control cover.
2) Make sure to install the circuit breaker when power is connected to the unit.
3) The bolts used for cable connection may become loose by the vibration generated during the transportation. Make sure to check again and fasten them tightly. (If they are loose, it may cause fire.)
4) Make sure to check power specification.
5) Electrical capacity shall be sufficient.
6) The initial voltage shall be maintained at 90% of the rated voltage on the name plate.
7) The thickness of the power cable complies with the designated specification. (length and thickness of
the power cable)
8) Do not install the circuit breaker in the place where there is a lot of moisture or where it is wet.
9) The following problems may be the cause of voltage drop.
- Magnetic switch vibration, defective contact, fuse damage, malfunction of overload protection device
h Based on the owner’s manual, teach how to operate and use the unit to the user.
(temperature setting, etc.)
Hydro Kit Installation Manual 25
Installation
Connecting Cables
Types of the cables
Classification
types
Cable cross section
Power cable(CV)
mm
2.5
Communication cable(VCTF-SB)
mm2
2
1.0~1.5
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 50mm 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
00m,
100m,
shall be calculated
with proportional
to the
added length.
it shall
beitcalculated
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.
26 Hydro Kit
Accessories Installation
ENGLISH
5. Accessories Installation
Location of Accessories and External Parts Connection
Dry contact board attachment location
Water tank temperature sensor locking location (CN-TH4)
Dry contact board locking location (CN-CC)
Remote controller locking location (CN-REMO)
3WAY VALVE
(B)
1
L
BR
2
L1
WH
3
N
BL
PUMP
(A)
11
L
BR
12
N
BL
WATER
PUMP
(B)
4
5
L
N
BR
BL
3WAY VALVE
(A)
6
2WAY VALVE
(A)
13
14
L1
BR
15
L2
WH
16
N
BL
7
8
L
BR
9
L1
WH
10
N
BL
THERMOSTAT
(Default : 230V AC)
17
L
BR
18
N
BL
19
L1
WH
20
L2
BK
• 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 voltage and maximum operation current of 4A or less.
• Select a suitable relay for pump capacity when connecting the pump to the unit.
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.
Hydro Kit Installation Manual 27
Accessories 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.
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.
2
2
3
h Remove guide groove with long nose.
① Reclamation to the surface of the wall
② Upper part guide groove
③ Right part guide groove
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.
3
1
<Wire guide grooves>
<Connecting order>
Wall
Side
Wall
Side
<Separating order>
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.
28 Hydro Kit
Wall
Side
Wall
Side
Accessories Installation
Male plug ends
Please check if connector
is normally connected.
Hydro Kit
Female plug ends
Optional extension cable
(purchased separately)
5. Please use extension cable if the distance between wired remote controller and indoor
unit is more than 10m.
Extension cable(10m) model name : PZCWRC1
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 50m 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 29
ENGLISH
4. Please connect indoor unit and remote controller using connection cable.
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
(main)
11
12
L
N
• It is recommended that the flow rate is Rated water flow (refer to the specification of PDB)
• Use the pump with enough capacity to guarantee the loss of entire water
pressure and to supply the Hydro Kit with water.
• Select a suitable relay for pump capacity when connecting the pump to the
unit.
Relay
• Connect the relay to the terminal block 11 and 12 of the control box.
Pump
CAUTION:
• Make sure to supply external power with the pump.
Water tank temperature sensor Connection
• Connect sensor housing to PCB‘CN-TH4’ connector (red).
CN-TH4
Housing
Water tank
thermistor
CAUTION:
• If water tank temperature sensor is not connected, error will occur.
(CH08) Exclude the case of using floor heating.
30 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 1~230 V 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
no
1.5 m
no
Hydro Kit Installation Manual 31
ENGLISH
Thermostat
Accessories Installation
General Information
Hydro Kit supports following thermostats.
Type
Power
1~ 230 V
Mechanical
(1)
1~ 24 V
1~ 230 V
Electrical
(2)
1~ 24 V
Operating Mode
Supported
Heating Only (3)
Yes
Heating / Cooling (4)
Yes
Heating Only (3)
Yes
Heating / Cooling (4)
Yes
Heating Only (3)
Yes
Heating / Cooling (4)
Yes
Heating Only (3)
Yes
Heating / Cooling (4)
Yes
(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.
32 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 1~ 230 V, go to Step 4. Otherwise, if
it is 1~ 24 V, 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 : 1~ 230 V)
1
L
BR
(L)
2
3
N
L1
BL
WH
(N)
Thermostat
4
L2
BK
(H)
WARNING :
Mechanical type Thermostat.
Do not connect wire (N) as mechanical type thermostat does not
require electric power supply.
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 33
ENGLISH
How to Wire Thermostat
Accessories Installation
Step 6. Find terminal block and connect wire as below.
THERMOSTAT
(Default : 1~ 230 V)
1
L
BR
(L)
2
N
BL
3
L1
WH
(N)
(C)
WARNING :
4
L2
BK
(H)
Thermostat
Mechanical type Thermostat.
Do not connect wire (N) as mechanical type thermostat does
not require electric power supply.
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’ icon is displayed on the remote controller.
- Button input is prohibited.
Thermostat Icon
34 Hydro Kit
Accessories Installation
ENGLISH
NOTICE
?)<-:
0-)<16/
78-:Thermostat Operation with Remote Controller
57,-Following features are permitted when thermostat is installed :
78-:
57,-
:
/
•
SET TEMP button
<-58
<-58
?)<-:
0-)<16/•
78-:
57,-
•
VIEW TEMP button
Temperature adjusting button(*)
<-58
•
?)<-:
0-)<16/
78-:
Sanitary
water heating button
57,-
(*) : The unit is not turned on/off according to the setting temperature at the remote controller.
<-58
It is turned
on/off according to the thermostat signal
78-:
57,-
<-58
Following features are NOT permitted when thermostat is installed :
?)<-:
•
0-)<16/
78-:
57,-
•
Operating mode (cooling/ heating/ weather-dependent) selection
Time scheduling
<-58
?)<-:
0-)<16/
78-:•
57,-
Operation On / Off
<-58
Sequence of thermostat operation
- How to set the heating temperature when thermostat is connected to the Hydro Kit.
Set thermostat
to the heating mode
Adjust the heating temperature,
using the remote controller
- How to set the cooling temperature when thermostat is connected to the Hydro Kit.
Set thermostat
to the heating mode
Adjust the cooling temperature,
using the remote controller
Hydro Kit Installation Manual 35
Accessories Installation
Remote Temperature Sensor
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 : 60mm)
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
60mm
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 nonpolar.
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.
36 Hydro Kit
Accessories Installation
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
1~ 230 V
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.
Hydro Kit Installation Manual 37
ENGLISH
3Way Valve
Accessories Installation
Final Check
• 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.
38 Hydro Kit
Accessories Installation
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)
230V AC
NC 2-wire(2)
230V 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.
CAUTION :
2WAY VALVE
(A)
14
L1
BR
15
L2
WH
(NO)
16
N
BL
(NC)
(N)
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 :
2way valve
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.
Hydro Kit Installation Manual 39
ENGLISH
2Way Valve
Accessories Installation
Dry Contact
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.
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
LG does not
supply this section
AC 220V
- To apply power source directly to external source.
DRY
DRY CONTACT
CONTACT
PCB
PCB
(unit : mm)
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
AC 220V
LG does not
supply this section
40 Hydro Kit
Accessories Installation
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.
Hydro Kit Installation Manual 41
ENGLISH
Independent Power Module
Accessories Installation
How to wire Independent Power Module
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/CNWRITE), using harness 2.
Step 5. Supply the power.
CN-WRITE
Harness 2
CN_EEV/MAIN
EEV
CN-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.
42 Hydro Kit
System Set-Up
As Hydro Kit(For Medium Temperature) 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
• Turn off electric power supply before setting dip switch.
There is risk of electric shock.
• Dip switch is turned on when pulled down.
• If dip switch is not set as below, the unit may not operate
properly.
x : OFF ●: On
Dip switch setting
Description
Function
Default
x
Master
○
●
Slave
1 2 3 4 5 6 7 8
Group Control
Installation
Scene
Emergency
operation
Water pump
control
Antifreeze operation mode
Thermostat
conncetion
x x
Floor heating only
● x
Floor heating + Hot water + solar booster
x ●
Floor heating + Hot water
● ●
Hot water only
x
High temperature operation
●
Low temperature operation
○
○
x
Water pump controlled with Hydro Kit
●
Water pump NOT controlled with Hydro Kit
○
● x
Nomal operation mode (connect short key)
○
● ●
Antifreeze operation mode (disconnect short key)
x
Thermostat NOT installed
●
Thermostat installed
○
※ short key
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 43
ENGLISH
6. System Set-Up
System Set-Up
Group Control Setting
Group Control
- Wired remote controller 1 + Many of Hydro Kit
Slave
Master
Display Error Message
Slave
Slave
Only connect serial signal and GND lines
between slave indoor unit
GND
Signal
12 V
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. You can connect all the types of 2nd generation indoor units .
3. It is possible to use wireless remote controller at the same time.
4. 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 and Group controller at the same time, it is possible to connect standard 2series indoor units or later since Feb. 2009.
- 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.
44 Hydro Kit
System Set-Up
• 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.
5. 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.
6. 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
Master
Hydro Kit Installation Manual 45
ENGLISH
CAUTION:
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 unit, Hydro Kit is generally operated 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 : Sensor trouble.
- Heavy trouble : Compressor cycle trouble.
- 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.
• Emergency operation level
- When the system is faced with trouble, it stops and waits for user’s decision : Calling service
center or starting emergency operation.
- To start emergency operation, user simply push ON / OFF button once more.
- Two different levels are prepared for emergency operation : High temperature cycle and low
temperature cycle.
- In emergency operation mode, user can not adjust target temperature.
DIP Switch
(No.4)
Target
Leaving Water
Temperature
Target
Room Air
Temperature
Target Sanitary
Water (DHW)
Temperature
High temperature cycle
OFF
50°C(122°F)
24°C(75°F)
50°C(122°F)
Low temperature cycle
ON
30°C(86°F)
19°C(66°F)
50°C(122°F)
46 Hydro Kit
System Set-Up
0-)<16/
78-:
57,-
?)<-:
0-)<16/
-58
-
ENGLISH
• Following features are permitted in emergency operation :
8-:
7,?)<-:
Operation On/Off
78-:
57,-
VIEW TEMP button(*)
<-58
-
-
<-58
?)<-:
0-)<16/
Temperature adjusting button(**)
78-:
Sanitary
water heating button
57,-
(*) : Temperature measured by failed sensor is displayed as ‘- -’.
<-58
(**) : The unit is not turned on/off according to the setting temperature at the remote controller.
It is turned on/off according to the thermostat signal
78-:
57,-
<-58
)<-:
)<16/
• Following features are NOT permitted in emergency operation :
?)<-:
0-)<16/
78-:
57,-
78-:
57,--
Operating mode (heating/ weather-dependent) selection
Time scheduling
<-58
-
SET TEMP button
<-58
• 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 sanitary water heating can be impossible in emergency operation mode.
When sanitary water is not warming up while emergency operation, please check whether the sanitary water sensor and related wiring are connected well or not.
• Emergency operation is not automatically restarted after main electricity power is reset.
In normal condition, the unit 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 unit.
Therefore, user must restart the unit after power reset when emergency operation has been running.
Hydro Kit Installation Manual 47
System Set-Up
Installer Setting
How to enter installer setting mode
CAUTION:
Installer setting mode is to set the detail function of the remote controller.
If the installer setting mode is not set correctly, it could cause problems to the unit, user injury or
property damage. This must be set by an certificated installer, and any installation or change that is
carried out by a non-certificated person should be responsible for the results. In this case, free
service cannot be provided.
Function Setting button for 3 seconds
1 Press
to enter the installer setting mode.
?)<-:
0-)<16/
<-58
78-:
57,-
Function Code
Value
(When you enter the installer setting mode initially, function code is displayed on the bottom of
the LCD screen.)
Repeat pressing button, and the function code
will be changed from 01 to 2F.
Please refer the code table on the next page.
48 Hydro Kit
System Set-Up
Example of Fuction Code Display
Function Code
Function
Test Run
Disable 3 Min. Delay
Default
01:01
02:01
Remote Air Sensor Connection
03:01
Celsius/Fahrenheit Switching
04:01
Setting Temp. Selection
05:02
Auto Dry Contact
06:02
Address Setting
07:00
Override Setting
08:00
Water Pump Test Run
Setting Air Temp.
(cooling Mode)
09:00
Setting Leaving Water Temp.
(cooling Mode)
Setting Air Temp.
(Heating Mode)
Setting Leaving Water Temp.
(Heating Mode)
Setting Sanitary Tank Water Temp.
(Sanitary Water Heating)
11:030:018
12:024:006
12:024:016
13:030:016
14:050:020
15:050:040
Value #1
01 : Set
01
01 : NOT connected.
02 : connected.
01 : Celsius
02 : Fahrenheit
01 : Air Temp.
02 : Leaving water Temp.
01 : Auto Start OFF
02 : Auto Start ON
00 ~ FF
00 : Slave
01 : Master
01 : Set
24°C(75°F)~30°C(86°F)
: Upper Limit of setting range
20℃(68℉)~25℃(77℉)
: Upper Limit of setting range
24℃(75℉) ~ 30℃(86℉)
: Upper Limit of setting range
35°C(95°F)~50°C(122°F)
: Upper Limit of setting range
50°C(122°F)
: Upper Limit of setting range
00 : Off
01 : On
17:00
Setting Cut-off Temp.
(FCU Cooling Mode)
Setting outdoor Temp. range
(Weather-dependent operation)
Setting indoor air Temp. range
(Weather-dependent operation)
Setting leaving water Temp.
(Weather-dependent operation)
Setting control parameter
(Sanitary water heating operation)
22:016:000
16°C(60°F)~25°C(77°F)
23:-10:015
10℃(50℉) ~ 20℃(68℉)
: Upper Limit of setting range
20℃(68℉) ~ 30℃(86℉)
: Upper Limit of setting range
35°C(95°F)~50°C(122°F)
: Upper Limit of setting range
24:021:016
25:050:020
29:003:000
2b:030
2b:180:020
2c:92
2E:00
2F:00
30:***
Setting Water Flow Rate
Changing thermal on/off room air Temp.
Changing thermal on/off leaving water Temp.
Program version
Changing thermal on/off Air temperature
31:00
in Cooling Mode
Changing thermal on/off temperature in
32:00
Cooling Mode
Changing thermal on/off sanitary tank
33:00
water Temp.
Select entering/leaving water Temp mode
34:00
in Heating Mode
Select entering/leaving water Temp mode
35:00
in Cooling Mode
Water Pump operation/delay time set
37:000:001
in Heating Mode
Water Pump operation/delay time set
38:001:001
in Cooling Mode
Forced product operation
39:00
Dry Contact installation set
41:00
CAUTION:
Value #2
Value #1
Operation mode lock
Setting sanitary water heating timers
ENGLISH
Summary
Value #2
-
Remark
18°C(64°F)~22°C(71°F)
: Lower Limit of setting range
FCU is installed 06℃(42℉)~18℃(64℉)
: Lower Limit of setting range
FCU is not installed 16℃(42℉)~18℃(64℉)
: Lower Limit of setting range
16℃(60℉) ~ 22℃(71℉)
: Lower Limit of setting range
20°C(68°F)~34°C(93°F)
: Lower Limit of setting range
30°C(86°F)~40°C(104°F)
: Lower Limit of setting range
00 : FCU is installed
01 : FCU is NOT installed
-20℃(-4℉) ~ 05℃(41℉)
: Lower Limit of setting range
16℃(60℉) ~ 19℃(66℉)
: Lower Limit of setting range
20°C(68°F)~34°C(93°F)
: Lower Limit of setting range
00~01
5 ~ 95 min (step: 5 min)
0 ~ 600 min (step: 30 min)
15~92 LPM
00~03 : Refer to 52p
00~03 : Refer to 52p
Display version number
-
00~03 : Refer to 52p
00~03 : Refer to 52p
00~03 : Refer to 52p
00 : Based on leaving water Temp
01 : Based on entering water Temp
00 : Based on leaving water Temp
01 : Based on entering water Temp
000: Operates according to OFF time setting
001 ~ 060 : OFF Time (minutes)
001 : Pump always on
000: Operates according to OFF time setting 001 ~ 060 : OFF Time (minutes)
001 : Pump always on
00 : Forced product operation in use
01 : Forced product operation not in use
00 : Dry Contact equipped decided on
01 : Dry Contact not installed
02 : Dry Contact installed
*Temp. = Temperature
*Sanitary water = Domestic Hot Water
There is no disinfection function in Hydro Kit.
So, external control equipment should be installed for disinfection function.
Hydro Kit Installation Manual 49
System Set-Up
Common Setting
• Function Code 01 : 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
• Function Code 02 : Disable 3 minute Delay
Only used for an inspection in a factory.
• Function Code 03 : Remote Air Sensor Connection
If remote air sensor is connected to control the unit by room air temperature, the connection information should be notified to the unit.
Note : If remote air sensor is connected but this function code is not set correctly, the unit can not
be controlled by room air temperature.
• Function Code 04 : Celsius/Fahrenheit Switching
Temperature is displayed in Celsius or Fahrenheit.
• Function Code 05 : Setting Temperature Selection
The unit 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 Function Code 03 is set as 02.
• Function Code 06 : Auto Dry Contact
This function enables the Dry Contact to operate under Auto Run mode or Manual mode with
remote controller.
If thermostat is used, value should be changed from "2" to "1".
• Function Code 07 : Address Setting
When Central Controller is installed, address assigning is set by this function.
• Function Code 08 : Override Setting
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).
h To use override master/slave selection function is only possible when units are connected in
series to the outdoor unit.
• Function Code 09 : Water Pump Test Run
After water pipe work is done, Water Pump Test Run mode should be
performed to check whether water circulation is normal.
50 Hydro Kit
System Set-Up
• Function Code 11 : Setting Air Temperature in Cooling Mode
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, Function Code 03 should be set properly.
• Function Code 12 : Setting Leaving Water Temperature in Cooling Mode
Determine cooling setting temperature range when leaving water temperature is selected as setting temperature.
NOTICE
Water condensation on the floor
• While the unit operates in cooling mode it is very important to keep leaving water temperature
higher than 16°C(60°F). Otherwise, dew condensation can occur on the floor.
• If floor is in humid environment, do not set leaving water temperature below 18°C(64°F).
NOTICE
Water condensation on the radiator
• While the unit operates in cooling mode cold water may not flow to the radiator. If cold water
enters to the radiator, dew generation on the surface of the radiator can occur.
• Function Code 13 : Setting Air Temperature in Heating Mode
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, Function Code 03 should be set properly.
• Function Code 14 : Setting Leaving Water Temperature in Heating Mode
Determine heating setting temperature range when leaving water temperature is selected as setting temperature.
• Function Code 15 : Setting Sanitary Tank Leaving Water Temperature
Determine heating setting temperature range of water tank leaving water.
NOTICE
Only available when sanitary water tank temperature sensor is installed.
• Sanitary water tank and sanitary water tank kit should be installed.
• DIP switch No. 2 and 3 should be set properly.
• Function Code 17 : Setting Operation mode lock.
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.
NOTICE
CH51 error occur when Combination Ratio exceed limitation without setting operation mode lock.
Multi V indoor unit can’t be operated heating mode and Hydro Kit can’t be operated cooling mode when operation mode lock is set
It can’t be operated with Multi V Indoor unit and Hydro Kit simultaneously when operation mode lock is set
Hydro Kit Installation Manual 51
ENGLISH
Temperature Range Setting
System Set-Up
Temperature Control Parameter Setting and Etc
• Function Code 22 : Setting Cut-off Temperature in Cooling Mode (FCU setting included)
Determine leaving water temperature when the unit is turned off. This function is used for preventing condensation on the floor in cooling mode.
- Value #1 : cut-off temperature. Value #1 is valid when Value #2 is ’01
(that means, FCU is NOT installed)’.
- Value #2 : determines if FCU is installed or not. ’01’ means ‘FCU is NOT installed’, and ’00’ means
‘FCU is installed.’
- Example : If Value #1 is set as ‘10’ and Value #2 is ’01’ and actually FCU is NOT installed in the
water loop, the unit stops operation in cooling mode when the leaving water temperature is below 10°C(50°F).
- Example : If Value #1 is set as ‘10’ and Value #2 is ’00’ and actually FCU is installed in the water
loop, the unit does NOT stop operation in cooling mode when the leaving water temperature is below 10°C(50°F).
NOTICE
FCU Installation
• If FCU is used, 2way valve should be installed and connected to the Main PCB assembly 1.
• If Value #2 is set as ’00’ but FCU or 2way valve is NOT installed, the unit may not operate normally.
• Function Code 23, 24, and 25 : Setting Weather-dependent operation
Weather-dependent operation is that the unit automatically adjusts target temperature (leaving
water or room air) according to the outdoor air temperature.
- Value #1 and Value #2 of Function Code 23 : range of outdoor air temperature
- Value #1 and Value #2 of Function Code 24 : range of auto-adjustable target room air temperature
- Value #1 and Value #2 of Function Code 25 : range of auto-adjustable target leaving water temperature
Note : Weather-dependent operation is applied for heating mode only.
Auto-Adjustable
Target Temperature
Temperature profile
of Weather-dependent
operation
Value #1 of
Function Code
24 or 25
Value #2 of
Function Code
24 or 25
Value #2 of
Function Code 23
52 Hydro Kit
Value #1 of
Function Code 23
Outdoor
air temperature
System Set-Up
Descriptions for each parameters are as following.
- Value #1 of Function Code 28 : temperature gap from Value #2 of Function Code 28.
- Value #2 of Function Code 28 : maximum temperature.
- Example : If Value #1 is set as ‘5’ and Value #2 is set as ’50’, then water tank heating will be
started when the water tank temperature is below 45°C(113°F).
ENGLISH
• Function Code 28 and 29 : Setting control parameter for Sanity water heating operation
- Value #1 of Function Code 29 : temperature gap from target sanitary water temperature.
- Value #2 of Function Code 29 : Determining heating demand priority between sanitary water
tank heating and under floor heating.
- Example : If user’s target temperature is set as ’50’ and Value #1 is set as ‘3’, then water
tank heating will be turned off when the water temperature is above 53°C(127°F).
Water tank heating will be turned on when the water temperature is below
50°C(122°F).
- Example : If Value #2 is set as ‘0’, that means heating priority is on sanitary water heating, In
this case the under floor can not be heated while sanitary water heating. On the
other hand, if the Value #2 is set as ‘1’, that means heating priority is on under
floor heating, sanitary tank can not be heated while under floor heating.
NOTICE
Sanitary water heating does not operate when it is disabled.
Enabling / Disabling sanitary water heating to operate is determined by pushing
button.
When
icon is displayed on the remote controller, sanitary water heating is enabled.
(by button input or scheduler programming)
?)<-:
0-)<16/
78-:
• Function Code?)<-:
2B : Setting
sanitary water heating timers
0-)<16/ 57,Determine time duration : Operation time and stop time of sanitary tank heating
- Value #1 of Function Code 2B : This time duration defines how long sanitary tank heating
can be continued.
<-58
- Value #2 of Function Code 2B : This time duration defines how long sanitary tank heating
can be stopped. It is also regarded as time gap between
sanitary tank heating cycle.
- Example of timing chart :
Sanitary tank
heating is enabled
Sanitary tank
heating is required
2B.02
2B.01
2B.02
2B.01
2B.02
Sanitary tank
heating operation
Time
Hydro Kit Installation Manual 53
78-:
57,-
<-58
System Set-Up
• Function Code 2C : Setting water flow rate
Determine the difference between target inlet water temperature and target outlet water temperature from water flow rate.
- Value #1 of Function Code 2C : Water flow rate which flows to Hydro Kit.
Setting value
50
55
60
65
70
75
80
85
90
92
Water flow rate (l/min)
ARNH04GK2A2
ARNH10GK2A2
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
• Function Code 2E and 2F : Changing thermal on/off temperature
Select Thermal on/off Temperature gap.
2E : Room air temperature
2F : Entering/Leaving water temperature
In heating mode
In heating mode
0
1
2
3
Th On
-0.5°C
4°C
2°C
-1°C
Th Off
1.5°C
6°C
4°C
1°C
0
1
2
3
Th On
-2°C
-6°C
-2°C
-1°C
Th Off
2°C
4°C
4°C
1°C
• Function Code 30 : Remote Controller Program Version
Display Remote Controller Program Version.
• Function Code 31 : Changing thermal on/off Air temperature in Cooling Mode.
The selection for setting temperature as Air temperature is determined.
0
1
2
3
Th On
0.5℃
6℃
4℃
1℃
Th Off
-0.5℃
4℃
2℃
-1℃
• Function Code 32 : Changing thermal on/off temperature in Cooling Mode.
The selection for setting temperature as entering water temperature or leaving water temperature is determined
Function code 32 : Inlet/Outlet water temperature in Cooling mode
0
1
2
3
Th On
0.5℃
6℃
2℃
1℃
Th Off
-0.5℃
-4℃
-4℃
-1℃
• Function Code 33 : Changing thermal on/off temperature in Hot water Mode
Select Thermal on/off Temperature gap.
Function code 33 : Sanitary Tank water temperature
0
1
2
3
Th On
-2℃
-6℃
-2℃
-1℃
Th Off
2℃
4℃
4℃
1℃
• Function Code 34 and 35 : Setting control parameter for Water flow temperature.
Descriptions for each parameters are as following.
- Function Code 34 : Select entering/leaving water Temp in Heating Mode
- Function Code 35 : Select entering/leaving water Temp in Cooling Mode
• Function Code 37 and 38 : Water pump operation/delay time set in heating mode and cooling mode.
• Function Code 39 : Setting of Forced product operation.
• Function Code 41 : Setting of Dry Contact installation set.
54 Hydro Kit
Test Run
ENGLISH
7. 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 2.0MΩ or above, when insulation resistance between the terminal block
and ground is measured with DC mega tester (DC 500V).
• 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.
Check for the block inside water pipe.
Flow Switch Error
CH14
(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 55
Test Run
Troubleshooting
• This function displays the disorder types at the self diagnostics and the occurrence of the disorder for the product.
• The disorder display shows the code in the following table on the red/green LED of the wired
remote controller and outdoor unit control board.
• If two or more types of disorders occur simultaneously, it displays in the order of the error
number.
• After error occurs, the error code disappears when the disorder is repaired.
h Error code 01, 08, 17, 18 can be operated with emergency operation.
Error
No.
Error Type
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 communi- No signal communication between indoor unit & outcation error
door unit
06
Liquid side temperature sensor error
08
Liquid side temperature sensor disconnection or short
circuit
Water tank temperature sensor disconnection or short
Water tank temperature sensor error
circuit
09
Indoor unit EEPROM error
Communication between the micro-processor & the
EEPROM / Error due to EEPROM damage
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 sen- Water inlet & outlet temperature sensor disconnection
sor error
or short circuit simultaneously
17
Water inlet temperature sensor error
18
Water outlet temperature sensor
error
187
Hydro-Kit P.HEX bursting error
56 Hydro Kit
Water inlet temperature sensor disconnection or short
circuit
Water outlet temperature sensor disconnection or
short circuit
Inlet water temperature is below 5 degree or water
temperature error during defrosting operation.