Panasonic WH-SDC0309K3E5 User manual

1
WH-SDC0309K3E5, WH-SDC0309K6E5, WH-SXC09K3E5, WH-SXC09K6E5, WH-SXC12K6E5
WEB-ACXF60-51530-EN
Installation Manual
AIR-TO-WATER HEATPUMP INDOOR UNIT
CAUTION
R32
REFRIGERANT
This AIR-TO-WATER HEATPUMP INDOOR UNIT contains and
operates with refrigerant R32.
THIS PRODUCT MUST ONLY BE INSTALLED OR SERVICED
BY QUALIFIED PERSONNEL.
Refer to National, State, Territory and local legislation,
regulations, codes, installation & operation manuals, before
the installation, maintenance and/or service of this product.
Explanation of symbols displayed on the indoor unit or outdoor unit.
WARNING
This symbol shows that this equipment uses
a flammable refrigerant. If the refrigerant is
leaked, together with an external ignition
source, there is a possibility of ignition.
CAUTION This symbol shows that the Installation
Manual should be read carefully.
CAUTION This symbol shows that a service personnel
should be handling this equipment with
reference to the Installation Manual.
CAUTION This symbol shows that there is
information included in the Operation
Manual and/or Installation Manual.
Required tools for Installation Works
1 Philips screw driver
2 Level gauge
3 Electric drill, hole core drill (ø70 mm)
4 Hexagonal wrench (4 mm)
5 Spanner
6 Pipe cutter
7 Reamer
8 Knife
9 Gas leak detector
10 Measuring tape
11 Thermometer
12 Megameter
13 Multimeter
14 Torque wrench
18 N•m (1.8 kgf•m)
55 N•m (5.5 kgf•m)
65 N•m (6.5 kgf•m)
117.6 N•m (11.8 kgf•m)
15 Vacuum pump
16 Gauge manifold
ENGLISH
WARNING
Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer. Any unfit method or using incompatible
material may cause product damage, burst and serious injury.
Do not use unspecified cord, modified cord, joint cord or extension cord for power supply cord. Do not share the single outlet with other electrical appliances. Poor
contact, poor insulation or over current will cause electrical shock or fire.
Do not tie up the power supply cord into a bundle by band. Abnormal temperature rise on power supply cord may happen.
Keep plastic bag (packaging material) away from small children, it may cling to nose and mouth and prevent breathing.
Do not use pipe wrench to install refrigerant piping. It might deform the piping and cause the unit to malfunction.
Do not purchase unauthorized electrical parts for installation, service, maintenance and etc.. They might cause electrical shock or fire.
Do not modify the wiring of Indoor Unit for installation of other components (i.e. heater, etc). Overloaded wiring or wire connection points may cause electrical
shock or fire.
Do not pierce or burn as the appliance is pressurized. Do not expose the appliance to heat, flame, sparks, or other sources of ignition. Else, it may explode and
cause injury or death.
SAFETY PRECAUTIONS
• Read the following “SAFETY PRECAUTIONS” carefully before installation.
• Electrical works and water installation works must be done by licensed electrician and licensed water system installer respectively. Be sure to use
the correct rating and main circuit for the model to be installed.
• The caution items stated here must be followed because these important contents are related to safety. The meaning of each indication used is as
below. Incorrect installation due to ignoring of the instruction will cause harm or damage, and the seriousness is classified by the following indications.
• Please leave this installation manual with the unit after installation.
WARNING This indication shows the possibility of causing death or serious injury.
CAUTION This indication shows the possibility of causing injury or damage to properties only.
The items to be followed are classified by the symbols:
Symbol with white background denotes item that is PROHIBITED from doing.
Symbol with dark background denotes item that must be carried out.
• Carry out test run to confirm that no abnormality occurs after the installation. Then, explain to user the operation, care and maintenance as stated
in instructions. Please remind the customer to keep the operating instructions for future reference.
• If there is any doubt about the installation procedure or operation, always contact the authorized dealer for advice and information.

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Do not add or replace refrigerant other than specified type. It may cause product damage, burst and injury etc.
Do not use joint cable for Indoor / Outdoor Unit connection cable. Use specified Indoor / Outdoor Unit connection cable, refer to instruction 5CONNECT
THE CABLE TO THE INDOOR UNIT and connect tightly for Indoor / Outdoor Unit connection. Clamp the cable so that no external force will be acted on the
terminal. If connection or fixing is not perfect, it will cause heat up or fire at the connection.
For electrical work, follow the national regulation, legislation and this installation instructions. An independent circuit and single outlet must be used. If electrical
circuit capacity is not enough or defect found in the electrical work, it will cause electrical shock or fire.
For water circuit installation work, follow to relevant European and national regulations (including EN61770) and local plumbing and building regulation codes.
Engage authorized dealer or specialist for installation. If installation done by the user is incorrect, it will cause water leakage, electrical shock or fire.
• This is a R32 model, use piping, flare nut and tools which is specified for R32 refrigerant. Using of existing (R22) piping, flare nut and tools may cause
abnormally high pressure in the refrigerant cycle (piping), and possibly result in explosion and injury.
• Thickness for copper pipes used with R32 must be more than 0.8 mm. Never use copper pipes thinner than 0.8 mm.
• It is desirable that the amount of residual oil is less than 40mg/10m.
When install or relocate Indoor Unit, do not let any substance other than the specified refrigerant, e.g. air etc. mix into refrigerant cycle (piping). Mixing of air etc.
will cause abnormal high pressure in refrigeration cycle and result in explosion, injury etc.
For refrigeration system work, install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electrical shock or
fire.
Install at a strong and firm location which is able to withstand weight of the set. If the strength is not enough or installation is not properly done, the set will
drop and cause injury.
This equipment is strongly recommended to be installed with Residual Current Device (RCD) on-site according to the respective national wiring rules or
country–specific safety measures in terms of residual current.
During installation, install the refrigerant piping properly before running the compressor. Operation of compressor without fixing refrigeration piping and valves
at opened condition will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion, injury etc.
During pump down operation, stop the compressor before removing the refrigeration piping. Removal of refrigerant piping while compressor is operating and
valves are opened will cause suck-in of air, abnormal high pressure in refrigerant cycle and result in explosion, injury etc.
Tighten the flare nut with torque wrench according to specified method. If the flare nut is over tightened, after a long period, the flare may break and cause
refrigerant gas leakage.
After completion of installation, confirm there is no leakage of refrigerant gas. It may generate toxic gas when the refrigerant contacts with fire.
Ventilate if there is refrigerant gas leakage during operation. It may cause toxic gas when the refrigerant contacts with fire.
Use the attached accessories parts and specified parts for installation. Otherwise, it will cause the set to fall, water leakage, fire or electrical shock.
Only use the supplied or specified installation parts. Else, it may cause unit vibrate loose, water leakage, electrical shock or fire.
The unit is only for use in closed water system.Utilization in an open water circuit may lead to excessive corrosion of water piping and risk of incubating bacteria
colonies, particularly Legionella, in water.
Select a location where in case of water leakage, the leakage will not cause damage to other properties.
When installing electrical equipment at wooden building of metal lath or wire lath, in accordance with electrical facility standard, no electrical contact between
equipment and building is allowed. Insulator must be installed in between.
Any work carried out on the Indoor Unit after removing any panels which is secured by screws, must be carried out under the supervision of authorized dealer
and licensed installation contractor.
This system is multi supply appliance. All circuits must be disconnected before accessing the unit terminals.
The piping installation work must be flushed before Indoor Unit is connected to remove contaminants.Contaminants may damage the Indoor Unit components.
This installation may be subjected to building regulation approval applicable to respective country that may require to notify the local authority before installation.
Be aware that refrigerant may not contain an odour.
This equipment must be properly earthed. Earth line must not be connected to gas pipe, water pipe, earth of lightning rod and telephone.
Otherwise, it may cause electrical shock in case of equipment breakdown or insulation breakdown.
CAUTION
Do not install the Indoor Unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at surrounding of the unit, it may
cause fire.
Prevent liquid or vapor from entering sumps or sewers since vapor is heavier than air and may form suffocating atmospheres.
Do not release refrigerant during piping work for installation, re-installation and during repairing a refrigeration parts. Take care of the liquid refrigerant, it may
cause frostbite.
Do not install this appliance in a laundry room or other high humidity location. This condition will cause rust and damage to the unit.
Make sure the insulation of power supply cord does not contact hot part (i.e. refrigerant piping) to prevent from insulation failure (melt).
Do not apply excessive force to water pipes that may damage the pipes. If water leakage occurs, it will cause flooding and damage to other properties.
Select an installation location which is easy for maintenance.
Incorrect installation, service or repair of this Indoor Unit may increase the risk of rupture and this may result in loss or damage of property or injury.
Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage the furniture.
Power supply connection to Indoor Unit.
• Power supply point should be in easily accessible place for power disconnection in case of emergency.
• Must follow local national wiring standard, regulation and this installation instruction.
• Strongly recommended to make permanent connection to a circuit breaker.
For Unit WH-SDC0309K3E5:
- Power Supply 1: For WH-UDZ03KE5* and WH-UDZ05KE5*, use approved 15/16A 2-poles circuit breaker with a minimum contact gap of 3.0mm.
For WH-UDZ07KE5* and WH-UDZ09KE5*, use approved 25A 2-poles circuit breaker with a minimum contact gap of 3.0mm.
- Power Supply 2: Use approved 16A 2-poles circuit breaker with a minimum contact gap of 3.0mm.
For Unit WH-SDC0309K6E5:
- Power Supply 1: For WH-UDZ03KE5* and WH-UDZ05KE5*, use approved 15/16A 2-poles circuit breaker with a minimum contact gap of 3.0mm.
For WH-UDZ07KE5* and WH-UDZ09KE5*, use approved 25A 2-poles circuit breaker with a minimum contact gap of 3.0mm.
- Power Supply 2: Use approved 30A 2-poles circuit breaker with a minimum contact gap of 3.0mm.
For WH-SXC09K3E5:
- Power Supply 1: Use approved 30A 2-poles circuit breaker with a minimum contact gap of 3.0mm.
- Power Supply 2: Use approved 16A 2-poles circuit breaker with a minimum contact gap of 3.0mm.
For WH-SXC09K6E5 & WH-SXC12K6E5:
- Power Supply 1: Use approved 30A 2-poles circuit breaker with a minimum contact gap of 3.0mm.
- Power Supply 2: Use approved 30A 2-poles circuit breaker with a minimum contact gap of 3.0mm.

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PRECAUTION FOR USING R32 REFRIGERANT
• The basic installation work procedures are the same as conventional refrigerant (R410A, R22) models.
However, pay careful attention to the following points:
When connecting flare at indoor side, make sure that the flare connection is used only once, if torqued up and released, the flare must be remade. Once
the flare connection was torqued up correctly and leak test was made, thoroughly clean and dry the surface to remove oil, dirt and grease by following
instructions of silicone sealant. Apply neutral cure (Alkoxy type) & ammonia-free silicone sealant that is non-corrosive to copper & brass to the external of the
flared connection to prevent the ingress of moisture on both the gas & liquid sides. (Moisture may cause freezing and premature failure of the connection)
The appliance shall be stored, installed and operated in a well ventilated room with comply to Indoor Floor Area Requirement and without any
continuously operating ignition source. Keep away from open flames, any operating gas appliances or any operating electric heater. Else, it may explode
and cause injury or death.
Refer to “PRECAUTION FOR USING R32 REFRIGERANT” in outdoor unit installation manual for other precautions that need to pay attention to.
INDOOR FLOOR AREA REQUIREMENT
•If the total refrigerant charge in the system is <1.84 kg, no additional minimum floor area is required.
•If the total refrigerant charge in the system is ≥1.84 kg, additional minimum floor area requirements is complied as described below:
Symbol Description Unit
Total refrigerant charge in system, mc (kg)
= Pre-charged refrigerant amount in unit (kg)
+ Additional refrigerant amount after installation (kg)
mc Total refrigerant charge in system kg
mmax Maximum refrigerant charge allowed kg
mexcess mc- mmax kg
H Installation height m
VAmin Minimum ventilation opening area cm2
A) Determine Maximum refrigerant charge allowed, mmax
1. Calculate Installation Room Area, Aroom .
2. Based on Table I, select
mmax which corresponds to the calculated Aroom value.
3. If
mmax > mc , the unit can be installed in the installation room with
the specified installation height in Table I and without additional room area or any additional ventilation.
4. Else, proceed to B) and C).
B) Determine Total Floor Area of Aroom and Broom compliance to Amin total
1. Calculate the Broom area adjacent to the Aroom .
2. Determine the
Amin total based on the Total Refrigerant Charge, mc from Table II.
3. The total floor area of both
Aroom and Broom must exceed Amin total .
C) Determine Minimum Venting Opening Area, VAmin for natural ventilation
1. From Table III, calculate mexcess .
2. Then determine
VAmin corresponding to the calculated mexcess
for natural ventilation between Aroom and Broom .
3. The unit can be installed at specific room only when the following conditions are fulfilled:
• Two permanent openings, one at bottom, another at top, for ventilation purposes are made between
Aroom and Broom .
•
Bottom opening: - Must comply to the minimum area requirement of VAmin .
- Opening must be located d300mm from the floor.
- At least 50% of required opening area must be d200mm
from the floor.
- The bottom of the opening shall not be higher than the
point of release when the unit is installed and must be
situated d100mm above the floor.
- Must be as close as possible to the floor and lower than H .
•
Top opening: - The total size of the Top opening must be more than
50% of
VAmin .
- Opening must be located t1500mm above the floor.
• The height of the openings must more than 20mm.
• A direct ventilation opening to outside is NOT encouraged for ventilation opening
(the user can block the opening when it is cold).
Adjacent
Room
( Broom)
>0.5 VAmin
> VAmin
>1500mm
>1150mm
Installation
Room
( Aroom)
Ensure the correct polarity is maintained throughout all wiring. Otherwise, it will cause electrical shock or fire.
After installation, check the water leakage condition in connection area during test run. If leakage occurs, it will cause damage to other properties.
Installation work.
It may need two or more people to carry out the installation work. The weight of Indoor Unit might cause injury if carried by one person.

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For WH-SDC0309K3E5, WH-SDC0309K6E5
Table I – Maximum refrigerant charge allowed in a room
Aroom
(m2)
Maximum refrigerant charge in a room
(
mmax ) (kg)
H =
1.15m
H =
1.20m
H =
1.30m
H =
1.40m
H =
1.50m
H =
1.60m
H =
1.70m
H =
1.80m
1 0.265 0.276 0.299 0.322 0.345 0.368 0.391 0.414
2 0.530 0.553 0.599 0.645 0.691 0.737 0.783 0.829
3 0.794 0.829 0.898 0.967 1.036 1.105 1.174 1.243
4 1.059 1.105 1.197 1.289 1.382 1.474 1.566 1.658
5 1.324 1.382 1.497 1.612 1.727 1.842 1.957 2.072
6 1.589 1.658 1.796 1.934 2.072 2.210 2.349 2.487
7 1.738 1.814 1.965 2.116 2.267 2.418 2.570 2.721
8 1.858 1.939 2.101 2.262 2.424 2.585 2.747 2.909
9 1.971 2.057 2.228 2.399 2.571 2.742 2.914 3.085
10 2.078 2.168 2.349 2.529 2.710 2.891 3.071 3.252
11 2.179 2.274 2.463 2.653 2.842 3.032 3.221 3.411
12 2.276 2.375 2.573 2.771 2.969 3.166 3.364 3.562
13 2.369 2.472 2.678 2.884 3.090 3.296 3.502 3.708
• For intermediate H values, the value that corresponds to the lower
H value from the table considered.
Example:
For H = 1.25 m, the value that corresponds to “ H = 1.20 m” is
considered.
• For intermediate Aroom values, the value that corresponds to the
lower Aroom value from the table is considered.
Example:
For Aroom = 10.5 m2, the value that corresponds to
“ Aroom = 10 m2” is considered.
Table II – Minimum floor area
mc
(kg)
Minimum floor area
(
Amin total (m2))
H =
1.15m
H =
1.20m
H =
1.30m
H =
1.40m
H =
1.50m
H =
1.60m
H =
1.70m
H =
1.80m
1.84 7.84 7.20 6.15 5.71 5.33 4.99 4.70 4.44
1.86 8.02 7.36 6.27 5.77 5.39 5.05 4.75 4.49
1.88 8.19 7.52 6.41 5.83 5.44 5.10 4.80 4.54
1.90 8.36 7.68 6.54 5.89 5.50 5.16 4.85 4.58
1.92 8.54 7.84 6.68 5.96 5.56 5.21 4.91 4.63
1.94 8.72 8.01 6.82 6.02 5.62 5.27 4.96 4.68
1.96 8.90 8.17 6.96 6.08 5.67 5.32 5.01 4.73
1.98 9.08 8.34 7.11 6.14 5.73 5.37 5.06 4.78
2.00 9.27 8.51 7.25 6.25 5.79 5.43 5.11 4.83
2.02 9.45 8.68 7.40 6.38 5.85 5.48 5.16 4.87
2.04 9.64 8.85 7.54 6.51 5.91 5.54 5.21 4.92
2.06 9.83 9.03 7.69 6.63 5.96 5.59 5.26 4.97
2.08 10.02 9.21 7.84 6.76 6.02 5.65 5.31 5.02
2.10 10.22 9.38 8.00 6.89 6.08 5.70 5.37 5.07
2.12 10.41 9.56 8.15 7.03 6.14 5.75 5.42 5.12
mc
(kg)
Minimum floor area
(
Amin total (m2))
H =
1.15m
H =
1.20m
H =
1.30m
H =
1.40m
H =
1.50m
H =
1.60m
H =
1.70m
H =
1.80m
2.14 10.61 9.74 8.30 7.16 6.24 5.81 5.47 5.16
2.16 10.81 9.93 8.46 7.29 6.35 5.86 5.52 5.21
2.18 11.01 10.11 8.62 7.43 6.47 5.92 5.57 5.26
2.20 11.21 10.30 8.77 7.57 6.59 5.97 5.62 5.31
2.22 11.42 10.49 8.93 7.70 6.71 6.03 5.67 5.36
2.24 11.62 10.68 9.10 7.84 6.83 6.08 5.72 5.40
2.26 11.83 10.87 9.26 7.98 6.96 6.13 5.77 5.45
2.28 12.04 11.06 9.42 8.13 7.08 6.22 5.82 5.50
2.30 12.26 11.26 9.59 8.27 7.20 6.33 5.88 5.55
• For intermediate H values, the value that corresponds to the lower
H value from the table considered.
Example:
For H = 1.25 m, the value that corresponds to “ H = 1.20 m” is considered .
• For intermediate
mc values, the value that corresponds to the higher
mc value from the table is considered.
Example:
If mc = 1.85 kg, the value that corresponds to “ mc = 1.86 kg” is
considered.
• Systems with total refrigerant charge lower than 1.84 kgare not
subjected to any room area requirements.
• Charges above 2.30 kgare not allowed in the unit.
Table III – Minimum venting opening area for natural ventilation
mc
(kg)
mmax
(kg)
mexcess
(kg) =
mc-
mmax
Minimum venting opening area
( VAmin ) (cm2)
H =
1.15m
H =
1.20m
H =
1.30m
H =
1.40m
H =
1.50m
H =
1.60m
H =
1.70m
H =
1.80m
2.3 0.1 2.2 643 629 605 583 563 545 529 514
2.3 0.3 2.0 584 572 550 530 512 495 481 467
2.3 0.5 1.8 526 515 495 477 461 446 433 420
2.3 0.7 1.6 468 458 440 424 409 396 385 374
2.3 0.9 1.4 409 400 385 371 358 347 336 327
2.3 1.1 1.2 351 343 330 318 307 297 288 280
2.3 1.3 1.0 292 286 275 265 256 248 240 234
2.3 1.5 0.8 234 229 220 212 205 198 192 187
2.3 1.7 0.6 179 172 165 159 154 149 144 140
2.3 1.9 0.4 126 121 112 106 102 99 96 93
2.3 2.1 0.2 66 64 59 54 51 50 48 47
2.3 2.2 0.1 34 33 30 28 26 25 24 23
• For intermediate H values, the value that corresponds to the lower
H value from the table considered.
Example:
For H = 1.25 m, the value that corresponds to “ H = 1.20 m” is
considered.
• For intermediate mexcess values, the value that corresponds to the
higher mexcess value from the table is considered.
Example:
mexcess = 1.45 kg, the value that corresponds to “ mexcess = 1.6 kg”
is considered.

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For WH-SXC09K3E5, WH-SXC09K6E5, WH-SXC12K6E5
Table I – Maximum refrigerant charge allowed in a room
Aroom
(m2)
Maximum refrigerant charge in a room
(
mmax ) (kg)
H =
1.15m
H =
1.20m
H =
1.30m
H =
1.40m
H =
1.50m
H =
1.60m
H =
1.70m
H =
1.80m
1 0.265 0.276 0.299 0.322 0.345 0.368 0.391 0.414
2 0.530 0.553 0.599 0.645 0.691 0.737 0.783 0.829
3 0.794 0.829 0.898 0.967 1.036 1.105 1.174 1.243
4 1.059 1.105 1.197 1.289 1.382 1.474 1.566 1.658
5 1.324 1.382 1.497 1.612 1.727 1.842 1.957 2.072
6 1.589 1.658 1.796 1.934 2.072 2.210 2.349 2.487
7 1.738 1.814 1.965 2.116 2.267 2.418 2.570 2.721
8 1.858 1.939 2.101 2.262 2.424 2.585 2.747 2.909
9 1.971 2.057 2.228 2.399 2.571 2.742 2.914 3.085
10 2.078 2.168 2.349 2.529 2.710 2.891 3.071 3.252
11 2.179 2.274 2.463 2.653 2.842 3.032 3.221 3.411
12 2.276 2.375 2.573 2.771 2.969 3.166 3.364 3.562
13 2.369 2.472 2.678 2.884 3.090 3.296 3.502 3.708
• For intermediate H values, the value that corresponds to the lower
H value from the table considered.
Example:
For H = 1.25 m, the value that corresponds to “ H = 1.20 m” is
considered.
• For intermediate Aroom values, the value that corresponds to the
lower Aroom value from the table is considered.
Example:
For Aroom = 10.5 m2, the value that corresponds to
“ Aroom = 10 m2” is considered.
Table II – Minimum floor area
mc
(kg)
Minimum floor area
(
Amin total (m2))
H =
1.15m
H =
1.20m
H =
1.30m
H =
1.40m
H =
1.50m
H =
1.60m
H =
1.70m
H =
1.80m
1.84 7.84 7.20 6.15 5.71 5.33 4.99 4.70 4.44
1.86 8.02 7.36 6.27 5.77 5.39 5.05 4.75 4.49
1.88 8.19 7.52 6.41 5.83 5.44 5.10 4.80 4.54
1.90 8.36 7.68 6.54 5.89 5.50 5.16 4.85 4.58
1.92 8.54 7.84 6.68 5.96 5.56 5.21 4.91 4.63
1.94 8.72 8.01 6.82 6.02 5.62 5.27 4.96 4.68
1.96 8.90 8.17 6.96 6.08 5.67 5.32 5.01 4.73
1.98 9.08 8.34 7.11 6.14 5.73 5.37 5.06 4.78
2.00 9.27 8.51 7.25 6.25 5.79 5.43 5.11 4.83
2.02 9.45 8.68 7.40 6.38 5.85 5.48 5.16 4.87
2.04 9.64 8.85 7.54 6.51 5.91 5.54 5.21 4.92
2.06 9.83 9.03 7.69 6.63 5.96 5.59 5.26 4.97
2.08 10.02 9.21 7.84 6.76 6.02 5.65 5.31 5.02
2.10 10.22 9.38 8.00 6.89 6.08 5.70 5.37 5.07
2.12 10.41 9.56 8.15 7.03 6.14 5.75 5.42 5.12
mc
(kg)
Minimum floor area
(
Amin total (m2))
H =
1.15m
H =
1.20m
H =
1.30m
H =
1.40m
H =
1.50m
H =
1.60m
H =
1.70m
H =
1.80m
2.14 10.61 9.74 8.30 7.16 6.24 5.81 5.47 5.16
2.16 10.81 9.93 8.46 7.29 6.35 5.86 5.52 5.21
2.18 11.01 10.11 8.62 7.43 6.47 5.92 5.57 5.26
2.20 11.21 10.30 8.77 7.57 6.59 5.97 5.62 5.31
• For intermediate H values, the value that corresponds to the lower
H value from the table considered.
Example:
For H = 1.25 m, the value that corresponds to “ H = 1.20 m” is considered .
• For intermediate
mc values, the value that corresponds to the higher
mc value from the table is considered.
Example:
If mc = 1.85 kg, the value that corresponds to “ mc = 1.86 kg” is
considered.
• Systems with total refrigerant charge lower than 1.84 kgare not
subjected to any room area requirements.
• Charges above 2.20 kgare not allowed in the unit.
Table III – Minimum venting opening area for natural ventilation
mc
(kg)
mmax
(kg)
mexcess
(kg) =
mc-
mmax
Minimum venting opening area
( VAmin ) (cm2)
H =
1.15m
H =
1.20m
H =
1.30m
H =
1.40m
H =
1.50m
H =
1.60m
H =
1.70m
H =
1.80m
2.2 0.1 2.1 614 601 577 556 537 520 505 490
2.2 0.3 1.9 555 543 522 503 486 471 457 444
2.2 0.5 1.7 497 486 467 450 435 421 409 397
2.2 0.7 1.5 438 429 412 397 384 372 360 350
2.2 0.9 1.3 380 372 357 344 333 322 312 304
2.2 1.1 1.1 321 315 302 291 281 272 264 257
2.2 1.3 0.9 263 257 247 238 230 223 216 210
2.2 1.5 0.7 205 200 192 185 179 173 168 163
2.2 1.7 0.5 149 143 137 132 128 124 120 117
2.2 1.9 0.3 95 91 84 79 77 74 72 70
2.2 2.1 0.1 33 32 29 27 26 25 24 23
2.2 2.2 0 0 0 0 0 0 0 0 0
• For intermediate H values, the value that corresponds to the lower
H value from the table considered.
Example:
For H = 1.25 m, the value that corresponds to “ H = 1.20 m” is
considered.
• For intermediate mexcess values, the value that corresponds to the
higher mexcess value from the table is considered.
Example:
mexcess = 1.45 kg, the value that corresponds to “ mexcess = 1.6 kg”
is considered.

6
892
500 347.6
427.6
326.9
68.7
58.9
284.7
166 161
151
147.5
53
61.7
1
5
4
326
Attached Accessories
No. Accessories part Qty. No. Accessories part Qty.
1Installation plate 14Installation plate 1
2Drain elbow 15Screw 3
3Packing 16Reducing Adapter
(For WH-SDC** Only) 1
Optional Accessories
No. Accessories part Qty.
7Remote Controller Case 1
8Network Adaptor (CZ-TAW1B) and
Extension Cable (CZ-TAW1-CBL) 1
9Optional PCB (CZ-NS5P) 1
Field Supply Accessories (Optional)
No. Part Model Specification Maker
i
2-way valve kit
*Cooling model
Electromotoric Actuator SFA21/18 AC230V Siemens
2-port Valve VVI46/25 - Siemens
ii
3-way valve kit
Electromotoric Actuator SFA21/18 AC230V Siemens
3-port Valve VVI46/25 - Siemens
iii Room thermostat
Wired PAW-A2W-RTWIRED AC230V -
Wireless PAW-A2W-RTWIRELESS
iv Mixing valve - 167032 AC230V Caleffi
v Pump - Yonos 25/6 AC230V Wilo
vi Buffer tank sensor - PAW-A2W-TSBU - -
vii Outdoor sensor - PAW-A2W-TSOD - -
viii Zone water sensor - PAW-A2W-TSHC - -
ix Zone room sensor - PAW-A2W-TSRT - -
x Solar sensor - PAW-A2W-TSSO - -
It is recommended to purchase the field supply accessories listed in above table.
Pipe Position Diagram
FRONT VIEW
BOTTOM VIEW
SIDE VIEW
abcd
f
e
Letter Pipe Description Connection Size
WH-SDC** WH-SXC**
a
Water inlet R 1¼" R 1¼"
bWater outlet R 1¼" R 1¼"
cRefrigerant gas 7/8-14UNF 3/4-16UNF
dRefrigerant liquid 7/16-20UNF 7/16-20UNF
eDrain water hole - -
fPressure relief valve drainage 3/8" 3/8"
Main Components Diagram
1Cabinet front plate
2Cabinet side plate (2 pieces)
3Remote controller
4PCB
5-1
Single Phase RCCB/ELCB (Main Power)
5-2
Single Phase RCCB/ELCB (Backup Heater)
6Control board cover
7Control board
8Flow sensor
9Air purge valve
0Backup heater
aOverload protector (2 pieces)
bExpansion vessel
cPressure relief valve
dWater pressure sensor
eMagnetic water filter set
fWater pump
gLeft Decoration Panel
hRight Decoration Panel
iNetwork Adaptor Holder
1
2
3
g
h
4
7
i
5-1
5-2
6
f
e
d
8
9
a
0
b
c
Dimension Diagram

7
HOW TO FIX INSTALLATION
PLATE
2
INDOOR UNIT INSTALLATION
4
SELECT THE BEST LOCATION
1
The mounting wall is strong and solid enough to prevent it from vibration
(Unit in mm)
55
200
756
07061
Indoor Unit
body
≥1956 from
ground
Installation
plate 1
Installation plate 4
Bolt -
size M8
Wall
Wall More than 375 More than 375
The centre of installation plate should be at more than 375 mm at right and
left of the wall.
The distance from installation plate edge to ground should more than
1956 mm.
• Always mount the installation plate horizontally plate by aligning the marking
thread and using a level gauge.
• Mount the installation plate on the wall with 6 sets of plug, bolt and washer
(all non-supply) with size M8.
TO DRILL A HOLE IN THE
WALL AND INSTALL A
SLEEVE OF PIPING
3
Access to Internal Components
WARNING
This section is for authorized and licensed electrician/water system installer
only. Work behind the front plate secured by screws must only be carried out
under supervision of qualified contractor, installation engineer or service person.
Please follow the steps below for take out front plate. Before removing the front
plate of Indoor Unit, always switch off all power supply (i.e. Indoor Unit power
supply, heater power supply and Tank Unit power supply).
1. Remove the 2 mounting screws which located at bottom of the front plate.
2. Gently pull the lower section of the front plate towards you to remove the front
plate from left and right hooks.
3. Hold the left edge and right edge of front plate to lift up front plate from hooks.
Screws Lift up
Hook
Install the Indoor Unit
1. Engage the slots on the Indoor Unit to the hooks of installation plate 1. Ensure
the hooks are properly seated on the installation plate by moving it left and right.
2. Fix the screws 5to the holes on the hooks of installation plate 4, as
illustrated below.
Slots
Installation plate 1
Hooks
Wall
Indoor Unit back
Before choosing the installation site, obtain user approval.
There should not be any heat source or steam near the unit.
A place where air circulation in the room is good.
A place where drainage can be easily done (e.g. Utility room).
A place where Indoor Unit’s operation noise will not cause discomfort
to the user.
A place where Indoor Unit is far from door way.
Ensure to keep minimum distance of spaces as illustrated below from
wall, ceiling, or other obstacles.
Recommended installation height for Indoor Unit shall be at least
1150 mm.
Must install on a vertical wall.
A place where flammable gas leaking might not occur.
When install electrical equipment at wooden building of metal
lath or wire lath, according to electrical facility technical standard,
no electrical contact between equipment and building is allowed.
Insulator must be installed in between.
Do not install the unit at outdoor. This is designed for indoor installation only.
100 mm
or more
1150 mm
or more
100 mm
or more 100 mm or more
Required space for installation
1. Make a Ø70 mm through hole.
2. Insert the piping sleeve to the hole.
3. Fix the bushing to the sleeve.
4. Cut the sleeve until it extrudes about 15 mm from the wall.
CAUTION
When the wall is hollow, please be sure to use the sleeve for tube
assembly to prevent dangers caused by mice biting the connection cable.
5. Finish by sealing the sleeve with putty or caulking compound at the final stage.
15 mm
Putty or caulking compound
ø70 mm
through hole
Indoor Outdoor
Sleeve for tube
assembly Approx. 5 - 7 mm
Bushing for tube assemblys
Wall

8
Installation plate 4
Screws 5
Note: Do not lift the
Indoor Unit by holding the
refrigerant and water pipes
to prevent damage of the
pipes.
Typical Piping Installation
Air-to-Water Heatpump
Outdoor Unit
Temporary
connection to
be removed
immediately
after filling
Double Check
Valve assembly
is acceptable in
house
Servicing
Valve
Fan Coil Unit
Radiator/
Floor Heater
2-Way Valve
Servicing
Valve
Main
Water
Supply
Water piping installation
• Water inlet and water outlet in Indoor Unit are used for connection to water circuit.
Please request a licensed technician to install this water circuit.
• This water circuit must comply with all relevant European and national
regulations, i.e. IEC/EN 61770.
• Do not use worn out tube or detachable hose-set.
• Be careful not to deform the piping to excessive force when doing piping
connection job.
• Use Rp 1¼" nut for both water inlet and outlet connection and clean all pipings
with tap water before connecting to the Indoor Unit.
• Cover the pipe end to prevent dirt and dust when inserting it through a wall.
• Choose proper sealer which can withstand the pressure and temperature
of the system.
• If an existing tank is to be connected to this Indoor Unit, ensure the pipes are
clean before water pipe installation is carried out.
• Be sure to use two spanners to tighten the connection. Tighten the nuts with
torque wrench: 117.6N•m.
Torque wrench
Indoor Unit
Spanner
• If non-brass metallic piping is used for installation, make sure to insulate the pipes
to prevent galvanic corrosion.
• Make sure to insulate the water circuit pipes to prevent reduction of heating capacity.
• After installation, check the water leakage condition in connection area during test run.
Water Inlet Water Outlet
CAUTION
Do not over tighten, over tightening cause water leakage.
Refrigerant piping installation
1. Please make flare after inserting flare nut (located at joint portion of tube
assembly) onto the copper pipe. (In case of using long piping)
2. Do not use pipe wrench to open refrigerant piping. Flare nut may be broken
and cause leakage. Use proper spanner or ring wrench.
3. Connect the piping:
• Align the center of piping and sufficiently tighten the flare nut with fingers.
• Be sure to use two spanners to tighten the connection. Further tighten
the flare nut with torque wrench in specified torque as stated in the table.
Torque wrench
Spanner or Wrench
Model Piping size (Torque) Use Reducing
Adapter 6
Indoor Unit Outdoor Unit Gas Liquid
WH-SDC0309K3E5,
WH-SDC0309K6E5
WH-UDZ03KE5*
ø12.7mm
(1/2")
[55 N•m]
ø6.35mm
(1/4")
[18 N•m]
Yes
WH-UDZ05KE5*,
WH-UDZ07KE5*,
WH-UDZ09KE5*
ø15.88mm
(5/8")
[65 N•m]
ø6.35mm
(1/4")
[18 N•m]
No
WH-SXC09K3E5,
WH-SXC09K6E5,
WH-SXC12K6E5
WH-UXZ09KE5*,
WH-UXZ12KE5*
ø12.7mm
(1/2")
[55 N•m]
ø6.35mm
(1/4")
[18 N•m]
____
Liquid Refrigerant Pipe
Gas Refrigerant Pipe
CAUTION
Do not overtighten, overtightening may cause gas leakage.
Do not pull and push refrigerant piping excessively, deformed pipe
may cause refrigerant leak.
Please take extra precaution when open the control board cover 6
and control board 7for Indoor Unit installation and servicing. Failure
to do so may cause injury.
Additional Precautions For R32 Models when connecting by flaring at indoor
side
Ensure to do the re-flaring of pipes before connecting to units
to avoid leaking.
Connections made between components of refrigerant
system shall be accessible for ease of maintenance.
Seal sufficiently the flare nut (both gas and liquid sides) with neutral cure
(Alkoxy type) & ammonia-free silicone sealant and insulation material to avoid
the gas leak caused by freezing.
Apply neutral cure
(Alkoxy type) and
ammonia-free silicone
sealant along the
circumference
Neutral cure (Alkoxy type) & ammonia-free silicone sealant is only to be applied
after pressure testing and cleaning up by following instructions of sealant, only to
the outside of the connection. The aim is to prevent moisture from entering the
connection joint and possible occurrence of freezing. Curing sealant will take some
time. Make sure sealant will not peel off when wrapping the insulation.
Checking for gas leakage
• Check for leakage of gas after air purging.
• See the in the installation manual for the outdoor.

9
CUTTING AND FLARING
THE PIPING
1. Please cut using pipe cutter and then remove the burrs.
2. Remove the burrs by using reamer. If burrs is not removed, gas leakage
may be caused. Turn the piping end down to avoid the metal powder
entering the pipe.
3. Please make flare after inserting the flare nut onto the copper pipes.
When properly flared, the internal surface
of the flare will evenly shine and be of even
thickness. Since the flare part comes into
contact with the connections, carefully check
the flare finish.
Improper flaring
Inclined Surface
damaged Cracked Uneven
thickness
1. To cut 2. To remove burrs 3. To flare
Bar
Red arrow mark
Handle
Core
Yoke
Clamp handle
Bar 0 – 0.5 mm
Copper
pipe
Reamer
Point down
Pipe
Drain elbow and hose installation
• Fix the drain elbow 2and packing 3to the bottom of Indoor Unit,
as shown in below illustration.
• Use inner diameter 17 mm drain hose in the market.
• This hose must to be installed in a continuosly downward direction
and in a frost-free environment.
• Guides this hose’s outlet to outdoor only.
• Do not insert this hose into sewage or drain pipe that may generate
ammonia gas, sulfuric gas, etc.
• If necessary, use hose clamp to further tighten the hose at drain
hose connector to prevent leakage.
• Water will drip from this hose, therefore the outlet of this hose must
be installed in an area where the outlet cannot become blocked.
Packing 3
Drain Elbow 2
Pressure Relief Valve Drainage Pipework
• Connect a drain hose to the pressure relief valve hose outlet.
• This hose must to be installed in a continuosly downward direction
and in a frost-free environment.
• Guides this hose’s outlet to outdoor only.
• Do not insert this hose into sewage hose or cleaning hose that may
generate ammonia gas, sulfuric gas, etc.
• If necessary, use hose clamp to further tighten the hose at drain
hose connector to prevent leakage.
• Water will drip from this hose, therefore the outlet of this hose must
be installed in an area where the outlet cannot become blocked.
Pressure relief valve
hose outlet
CONNECT THE CABLE TO
THE INDOOR UNIT
5
WARNING
This section is for authorised and licensed electrician only. Work
behind the Control Board Cover 6secured by screws must
only be carried out under supervision of qualified contractor,
installation engineer or service person.
Open the Control Board Cover 6
Please follow the steps below to open control board cover. Before
opening the control board cover of Indoor Unit, always switch off all
power supply (i.e. Indoor Unit power supply, heater power supply
and Tank Unit power supply).
1. Remove the 4 mounting screws at the control board cover.
2. Swing the control board cover to the right hand side.
CAUTION
Screws
Screws
Fixing of Power Supply Cord and Connecting Cable
1. Connecting cable between Indoor Unit and Outdoor Unit shall be
approved polychloroprene sheathed flexible cord, type designation
60245 IEC 57 or heavier cord.
See below table for cable size requirement.
Model Connecting Cable Size
Indoor Unit Outdoor Unit
WH-SDC0309K3E5,
WH-SDC0309K6E5
WH-UDZ03KE5*,
WH-UDZ05KE5* 4 x min 1.5 mm2
WH-UDZ07KE5*,
WH-UDZ09KE5* 4 x min 2.5 mm2
WH-SXC09K3E5,
WH-SXC09K6E5,
WH-SXC12K6E5
WH-UXZ09KE5*,
WH-UXZ12KE5* 4 x min 4.0 mm2
• Ensure the colour of wires of Outdoor Unit and the terminal
no. are the same to the Indoor Unit respectively.
• Earth wire shall be longer than other wires as shown in the
figure for the electrical safety in case of the slipping out of the
cord from the Holder (Clamper).
2. An isolating device must be connected to the power supply cable.
• Isolating device (disconnecting means) should have minimum
3.0 mm contact gap.
• Connect the approved polychloroprene sheathed power
supply 1 cord and power supply 2 cord and type designation
60245 IEC 57 or heavier cord to the terminal board, and to
the other end of the cord to isolating device (Disconnecting
means). See below table for cable size requirement.
Model Power
Supply
Cord
Cable Size Isolating
Devices
Recommended
RCD
Indoor Unit Outdoor Unit
WH-SDC0309K3E5
WH-UDZ03KE5*,
WH-UDZ05KE5*
1 3 x min 1.5 mm215/16A 30mA, 2P, type A
2 3 x min 1.5 mm215/16A 30mA, 2P, type AC
WH-UDZ07KE5*,
WH-UDZ09KE5*
1 3 x min 2.5 mm225A 30mA, 2P, type A
2 3 x min 1.5 mm215/16A 30mA, 2P, type AC
WH-SDC0309K6E5
WH-UDZ03KE5*,
WH-UDZ05KE5*
1 3 x min 1.5 mm215/16A 30mA, 2P, type A
2 3 x min 4.0 mm230A 30mA, 2P, type AC
WH-UDZ07KE5*,
WH-UDZ09KE5*
1 3 x min 2.5 mm225A 30mA, 2P, type A
2 3 x min 4.0 mm230A 30mA, 2P, type AC
WH-SXC09K3E5 WH-UXZ09KE5* 1 3 x min 4.0 mm230A 30mA, 2P, type A
2 3 x min 1.5 mm215/16A 30mA, 2P, type AC
WH-SXC09K6E5,
WH-SXC12K6E5
WH-UXZ09KE5*,
WH-UXZ12KE5*
1 3 x min 4.0 mm230A 30mA, 2P, type A
2 3 x min 4.0 mm230A 30mA, 2P, type AC

10
PROHIBITED
Conductor
over insert
ACCEPT
Conductor
fully insert
PROHIBITED
Conductor not
fully insert
WIRE STRIPPING AND CONNECTING REQUIREMENT
3. To avoid the cable and cord being damaged by sharp edges, the cable and
cord must be passed through a bushing (located at the bottom of Control Board)
before terminal board. The bushing must be used and must not be removed.
Terminals on the Outdoor Unit 123
Colour of wires (Connecting cables)
Terminals on the Indoor Unit LN L1N1123
(Power Supply Cord)
Terminals on the isolating
devices from power supply
(Disconnecting means)
LN L1N1
Indoor Unit/
Outdoor Unit
connection
Power Supply 1 Power Supply 2
Power Supply Cord
Holder
(Clamper)
Terminal Board
RCCB/ELCB
*1 *1
Connecting Cable
Terminal screw Tightening torque cN•m {kgf•cm}
M4 157~196 {16~20}
M5 196~245 {20~25}
*1 - Earth wire must be longer than other cables for safety reasons
CONNECTING REQUIREMENT
For Indoor Unit WH-SDC0309K3E5 with WH-UDZ03KE5*, WH-UDZ05KE5*,
WH-UDZ07KE5*, WH-UDZ09KE5*
•
The equipment’s Power Supply 1 complies with IEC/EN 61000-3-2.
•
The equipment’s Power Supply 1 complies with IEC/EN 61000-3-3 and can be
connected to current supply network.
•
The equipment’s Power Supply 2 complies with IEC/EN 61000-3-2.
•
The equipment’s Power Supply 2 complies with IEC/EN 61000-3-3 and can be
connected to current supply network.
For Indoor Unit WH-SDC0309K6E5 with WH-UDZ03KE5*, WH-UDZ05KE5*,
WH-UDZ07KE5*, WH-UDZ09KE5*
•
The equipment’s Power Supply 1 complies with IEC/EN 61000-3-2.
•
The equipment’s Power Supply 1 complies with IEC/EN 61000-3-3 and can be
connected to current supply network.
•
The equipment’s Power Supply 2 complies with IEC/EN 61000-3-12.
•
The equipment’s Power Supply 2 complies with IEC/EN 61000-3-11 and
shall be connected to suitable supply network, with the following maximum
permissible system impedance Zmax = 0.123 ohm (:) at the interface. Please
liaise with supply authority to ensure that the Power Supply 2 is connected only
to a supply of that impedance or less.
For Indoor Unit WH-SXC09K3E5 with WH-UXZ09KE5*
•
The equipment's Power Supply 1 complies with IEC/EN 61000-3-12 provided
that the short circuit power Ssc is greater than or equal to 4450kW at the intertace
point between the user's supply and the public system. It is the responsibility
of the installer or user of the equipment to ensure, by consultation with the
distribution network operator if necessary, that the equipment is connected
only to a supply with a short circuit power Ssc greater than or equal to 4450kW.
•
The equipment’s Power Supply 2 complies with IEC/EN 61000-3-2.
•
The equipment’s Power Supply 2 complies with IEC/EN 61000-3-3 and can be
connected to current supply network.
For Indoor Unit WH-SXC09K6E5, WH-SXC12K6E5 with WH-UXZ09KE5*,
WH-UXZ12KE5*
•
The equipment's Power Supply 1 complies with IEC/EN 61000-3-12 provided
that the short circuit power Ssc is greater than or equal to 4450kW at the intertace
point between the user's supply and the public system. It is the responsibility
of the installer or user of the equipment to ensure, by consultation with the
distribution network operator if necessary, that the equipment is connected
only to a supply with a short circuit power Ssc greater than or equal to 4450kW.
INSTALLATION OF REMOTE
CONTROLLER AS ROOM
THERMOSTAT
6
• Remote Controller 3mounted to the Indoor Unit can be moved to the room
and serve as Room Thermostat.
Installation Location
• Install at the height of 1 to 1.5 m from the floor (Location where average room
temperature can be detected).
• Install vertically against the wall.
• Avoid the following locations for installation.
1. By the window, etc. exposed to direct sunlight or direct air.
2. In the shadow or backside of objects deviated from the room airflow.
3. Location where condensation occurs (The Remote Controller is not
moisture proof or drip proof.)
4. Location near heat source.
5. Uneven surface.
• Keep distance of 1 m or more from the TV, radio and PC. (Cause of fuzzy
image or noise)
Remote Controller Wiring
1
2
Terminal for Remote Controller wiring
Remote Controller
Indoor Unit
Remote Controller wiring
(field supply)
• No polarity
• Remote Controller cable shall be (2 x min 0.3 mm²), of double insulation PVC-
sheathed or rubber sheathed cable. Total cable length shall be 50 m or less.
• Be careful not to connect cables to other terminals of Indoor Unit (e.g. power
source wiring terminal). Malfunction may occur.
• Do not bundle together with the power source wiring or store in the same metal
tube. Operation error may occur.
Remove The Remote Controller From Indoor Unit
1. Remove both Left Decoration Panel gand Right Decoration Panel hfrom
Front Plate 1 with gently push the panels from back.
Gently push
from rear
2. Remove the 4 screws and take out the holder with Remote Controller 3.
Remove 4 screws
5mm or more
(gap between wires)
Indoor/outdoor
connecting
terminal board
No loose strand
when insert
10 ± 1mm
Wire stripping
•
The equipment’s Power Supply 2 complies with IEC/EN 61000-3-12.
•
The equipment’s Power Supply 2 complies with IEC/EN 61000-3-11 and
shall be connected to suitable supply network, with the following maximum
permissible system impedance Zmax = 0.123 ohm (:) at the interface. Please
liaise with supply authority to ensure that the Power Supply 2 is connected only
to a supply of that impedance or less.

11
3. Remove the top case from the bottom case.
Top case
Insert the
driver and
slightly turn.
Flat-blade
screwdriver
Bottom case
4. Remove the wiring between Remote controller 3 and Indoor
Unit terminal.
Claw
(3 places)
Disconnect the
Remote controller
wiring
Slide it
downwards
to unhook
Mounting The Remote Controller
For exposed type
Preparation: Make 2 holes for screws using a driver.
Cut here with
a nipper and
remove the burr
with a file.
Mount the top case.
•
Align the claws of the top case
and then align the claws of the
bottom case.
Screw
(field supply)
Bottom case
(Back side)
Top case
(Back side)
Remove the coating. Approx. 6 mm
Remove the sheath. Approx. 180 mm.
Make sure the wiring connection is in the
correct direction.
Wall to which the
remote controller
is fixed
Mount the bottom case to
the wall.
Connect the remote
control wiring
•
Arrange the wires along the
groove of the case.
For embedded type
Preparation: Make 2 holes for screws using a driver.
Avoid the wire
being caught.
Mount the top case.
•
Align the claws of the top
case and then align the
claws of the bottom case.
Screws
(field supply)
Bottom case
(Back side)
Top case
(Back side)
Remote controller
terminal board
Remove the coating.
Approx. 6 mm
Make sure the wiring
connection is in the correct
direction.
Mount the bottom case to
the wall.
•
Pass the wire through the hole in the
centre of the bottom case.
Connect the remote
control wiring
Replace The Remote Controller Cover
• Replace the existing Remote Controller with Remote Controller
Case 7to close the hole left after remove the Remote Controller.
1. Refer Section “Remove The Remote Controller From Indoor
Unit” for remove Remote Controller.
2. Remove the top case from the bottom case of Remote Controller
Case 7.
Bottom case Top case
Insert the
driver and
slightly turn.
Flat-blade
screwdriver
3. Reverse the steps 1 to 4 of section “Remove The Remote
Controller From Indoor Unit” to fix Remote Controller Case 7on
Indoor Unit.
Remote controller terminal board

12
CHARGING THE WATER
7
• Make sure all the piping installations are properly done before
carry out below steps.
1. Turn the plug on the Air Purge Valve 9outlet anticlockwise by
one complete turn from fully closed position.
Air purge valve 9
Plug (turn
anticlockwise by
one complete turn)
2. Set the Pressure Relief Valve clever “DOWN”.
Pressure relief valve c
Pressure relief valve c
Lever
Turn down
or
Pressure relief valve c
Lever
Turn down
Pressure relief valve c
3. Start filling water (with pressure more than 0.1 MPa (1 bar)) to the
Indoor Unit via water inlet. Stop filling water if the free water flow
through Pressure Relief Valve drain hose.
4. Turn ON the power supply and make sure Water Pump fis
running.
5. Check and make sure no water leaking at the tube connecting
points.
6. The water may drip from this discharge hose. Therefore must guide
the hose without close or block the outlet of the hose.
RECONFIRMATION
8
WARNING
Be sure to switch off all power supply before performing each of the below checkings.
Before obtaining access to terminals, all supply circuits must be disconnected.
CHECK PRESSURE RELIEF VALVE c
• Check for correct operation of Pressure Relief Valve cby turning
on the lever to become horizontal.
• If you do not hear a clacking sound (due to water drainage), contact
your local authorized dealer.
• Push down the lever after finish checking.
• In case the water keeps drained out from the unit, switch off the
system, and then contact your local authorized dealer.
EXPANSION VESSEL bPRE PRESSURE CHECKING
[Upper limit water volume of the system]
The Indoor Unit has a build-in Expansion Vessel with 10 L air capacity
and initial pressure of 1 bar.
Total amount of water in the system should be below 200 L.
If the total amount of water is more than 200 L, please add expansion
vessel (field supply).
The expansion vessel capacity required for the system can be
calculated from the formula below.
V : Required gas volume <expansion vessel volume L>
Vo : System total water volume <L>
: Water expansion rate 5 60˚C = 0.0171
P1 : Expansion tank filling pressure = (100) kPa
P2 : System maximum pressure = 300 kPa
-( ) Please confirm at actual place
-The gas volume of the sealed type expansion vessel is presented by <V>.
It’s advised to add 10% margin for required gas volume of calculation.
V = x
Vo
1 - 98 +
P1
98 + P2
з
з
Water expansion rate table
Water temperature (°C) Water expansion rate
10 0.0003
20 0.0019
30 0.0044
40 0.0078
50 0.0121
60 0.0171
70 0.0228
80 0.0291
90 0.0360
[Adjustment of the initial pressure of the expansion vessel when there
is a difference in installation height]
If the height difference between the Indoor Unit and the highest
point of the system water circuit (H) is more than 7m, please adjust
the initial pressure of the expansion vessel (Pg) according to the
following formula.
Pg= (H*10+30) kPa
CHECK RCCB/ELCB
Ensure the RCCB/ELCB set to “ON” condition before check RCCB/
ELCB.
Turn on the power supply to the Indoor Unit.
This testing could only be done when power is supplied to the Indoor
Unit.
WARNING
Be careful not to touch parts other than RCCB/ELCB test button when the power is
supplied to Indoor Unit. Else, electrical shock may happen. Before obtaining access
to terminals, all supply circuits must be disconnected.
• Push the “TEST” button on the RCCB/ELCB. The lever would turn
down and indicate “0”, if it functions normal.
• Contact authorized dealer if the RCCB/ELCB malfunction.
• Turn off the power supply to the Indoor Unit.
• If RCCB/ELCB functions normal, set the lever to “ON” again after
testing finish.

13
TEST RUN
9
1. Fill up the Tank Unit with water. For details refer to Tank Unit
installation instruction and operation instruction.
2. Set ON to the Indoor Unit and RCCB/ELCB. Then, for control
panel operation please refers to air-to-water heatpump operation
instruction.
Note:
• During winter, turn on the power supply and standby the unit
for at least 15 minutes before test run.
Allow sufficient time to warm up refrigerant and prevent wrong
error code judgement.
3. For normal operation, pressure sensor dreading should be in
between 0.05 MPa and 0.3 MPa (0.5 bar and 3 bar).
4. After test run, please clean the Magnetic Water Filter Set e.
Reinstall it after finish cleaning.
RESET OVERLOAD PROTECTOR a
Overload Protector aserves the safety purpose to prevent the water
over heating. When the Overload Protector atrip at high water
temperature, take below steps to reset it.
1. Take out the cover.
2. Use a test pen to push the centre button gently in order to reset
the Overload Protector a.
3. Fix the cover to the original fixing condition.
Use test pen to push this
button for reset Overload
protector a.
MAINTENANCE
10
• In order to ensure safety and optimal performance of the unit,
seasonal inspections on the unit, functional check of RCCB/ELCB,
field wiring and piping have to be carried out at regular intervals. This
maintenance should be carried out by authorized dealer. Contact
dealer for scheduled inspection.
Maintenance for Magnetic Water Filter Set e
1. Turn OFF power supply.
2. Place a container below Magnetic Water Filter Set e.
3. Turn to remove the Magnet Bar at bottom of Magnetic Water
Filter Set e.
4. By using Allen key (8mm), remove the Cap of Discharge Port.
5. By using Allen Key (4mm), open the Service Valve to release the
dirty water from the Discharge Port into a container. Close the
service valve when the container is full to avoid spillage in the tank
unit. Dispose the dirty water.
6. Reinstall the Cap of Discharge Port and Magnet Bar.
7. Re-charging the water to Space Heating / Cooling circuit if
necessary (refer Section 5 for details.)
8. Turn ON power supply.
Service
Valve
Magnet Bar
Open Close
Discharge port
PROPER PUMP DOWN PROCEDURE
WARNING
Strictly follow the steps below for proper pump down procedure.
Explosion may occur if the steps are not followed as per sequence.
1. When the Indoor Unit is not in operation (standby), enter the
Servic e setup menu in the Remote Controller and select
Pump down operation to turn it ON. (See APPENDIX for
detail)
2. After 10~15 minutes, (after 1 or 2 minutes in case very low
ambient temperature (< 10°C)), fully close 2 way valve on
Outdoor Unit.
3. After 3 minutes, fully close 3 way valve on Outdoor Unit.
4. Press the “OFF/ON” switch on the Remote Controller 3to
stop pump down operation.
5. Remove the refrigerant piping.

14
APPENDIX
1 Variation of system
This section introduces variation of various systems using Air-To-Water Heatpump and actual setting method.
1-1 Introduce application related to temperature setting.
Temperature setting variation for heating
1. Remote Controller
Outdoor
Floor heating
Indoor
Connect floor heating or radiator directly to the Indoor Unit.
Remote controller is installed on Indoor Unit.
This is the basic form of the most simple system.
2. Room Thermostat
Outdoor
Indoor Unit receive Room Thermo signal (ON/OFF) from Remote controller
to control HP and circulation pump.
There is a build-in thermistor in the remote controller.
Floor heating
Indoor
Connect floor heating or radiator directly to the Indoor Unit.
Remove remote controller from Indoor Unit and install it in the room where floor heating is installed.
This is an application that uses remote controller as Room Thermostat.
3. External Room Thermostat
Outdoor
Room
Thermostat
(Field supply)
Floor heating
Indoor
Connect floor heating or radiator directly to Indoor Unit.
Remote controller is installed on Indoor Unit.
Install separate external Room Thermostat (field supply) in the room where floor heating is installed.
This is an application that uses external Room Thermostat.
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - No
Zone & Sensor:
Water temperature
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - No
Zone & Sensor:
Room thermostat
Internal
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - No
Zone & Sensor:
Room thermostat
(External)

15
Outdoor
Max: 30m
Thermistor
Indoor Unit compare between room temperature and setting temperature
on the Remote controller to control HP and circulation pump.
Floor heating
Indoor
Connect floor heating or radiator directly to Indoor Unit.
Remote controller is installed on Indoor Unit.
Install separate external room thermistor (specified by Panasonic) in the room where floor heating is installed.
This is an application that uses external room thermistor.
There are 2 kinds of circulation water temperature setting method.
Direct: set direct circulation water temperature (fixed value)
Compensation curve: set circulation water temperature depends on outdoor ambient temperature
In case of Room thermo or Room thermistor, compensation curve can be set.
In this case, compensation curve is shifted according to the thermo ON/OFF situation.
• (Example) If room temperature increasing speed is;
very slow oshift up the compensation curve
very fast oshift down the compensation curve
Examples of installations
Floor heating 1 + Floor heating 2
Outdoor
Room Thermostat
(field supply)
Thermistor 2
Thermistor 1
Buffer tank
Pump 2
Pump 1
Mixing valve 2
Mixing valve 1
Indoor
Floor heating 2Floor heating 1
Connect floor heating to 2 circuits through buffer tank as shown in the figure.
Install mixing valves, pumps and thermistors (specified by Panasonic) on both circuits.
Remove remote controller from Indoor Unit, install it in one of the circuit and use it as Room Thermostat.
Install external Room Thermostat (field supply) in another circuit.
Both circuits can set circulation water temperature independently.
Install buffer tank thermistor on buffer tank.
It requires connection setting of buffer tank and T temperature setting at heating operation separately.
This system requires Optional PCB (CZ-NS5P).
NOTE : Buffer tank thermistor must be connected to main indoor PCB only.
Outdoor
Radiator
Thermistor 1
Thermistor 2
Buffer tank
Pump 2
Pump 1
Mixing valve 1
Indoor
Floor heating
Connect floor heating or radiator to 2 circuits through buffer tank as shown in figure.
Install pumps and thermistors (specified by Panasonic) on both circuits.
Install mixing valve in the circuit with lower temperature among the 2 circuits.
(Generally, if install floor heating and radiator circuit at 2 zones, install mixing valve in floor heating circuit.)
Remote controller is installed on Indoor Unit.
For temperature setting, select circulation water temperature for both circuits.
Both circuits can set circulation water temperature independently.
Install buffer tank thermistor on buffer tank.
It requires connection setting of buffer tank and T temperature setting at heating operation separately.
This system requires the Optional PCB (CZ-NS5P).
Mind that if there is no mixing valve at the secondary side, the circulation water temperature may get higher than setting temperature.
NOTE : Buffer tank thermistor must be connected to main indoor PCB only.
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - No
Zone & Sensor:
Room thermistor
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Zone and Sensor - 2 Zone system
Zone 1:Sensor
Room thermostat
Internal
Zone 2:Sensor
Room
Room thermostat
(External)
Floor heating + Radiator
4. Room Thermistor
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Zone and Sensor - 2 Zone system
Zone 1:Sensor
Water temperature
Zone 2:Sensor
Room
Water temperature

16
Floor heating + Swimming pool
Outdoor
Thermistor 1 Heat EXT
Thermistor 3
Thermistor 2
Buffer tank
Pump 2
Pump 3
Pump 1
Mixing valve 1
Mixing valve 2
Indoor
Floor heating 1 Swimming pool
Connect floor heating and swimming pool to 2 circuits through buffer tank as shown in figure.
Install mixing valves, pumps and thermistors (specified by Panasonic) on both circuits.
Then, install additional pool heat exchanger, pool pump and pool sensor on pool circuit.
Remove remote controller from Indoor Unit and install in room where floor heating is installed. Circulation water temperature of floor heating and swimming
pool can be set independently.
Install buffer tank sensor on buffer tank.
It requires connection setting of buffer tank and T temperature setting at heating operation separately. This system requires the Optional PCB (CZ-NS5P).
Must connect swimming pool to “Zone 2”.
If it is connected to swimming pool, operation of pool will stop when “Cooling” is operated.
NOTE : Buffer tank thermistor must be connected to main indoor PCB only.
Swimming pool only
This is an application that connects to the swimming pool only.
Connects pool heat exchanger directly to Indoor Unit without
using buffer tank.
Install pool pump and pool sensor (specified by Panasonic) at secondary side of the pool heat exchanger.
Remove remote controller from Indoor Unit and install in room where floor heating is installed.
Temperature of swimming pool can be set independently.
This system requires the Optional PCB (CZ-NS5P).
In this application, cooling mode cannot be selected. (not display on remote controller)
Thermistor
Pump
Swimming pool
Heat EXT
Indoor
Outdoor
Simple 2 zone (Floor heating + Radiator)
Thermistor 2
Thermistor 1
Pump 2
Mixing valve
Indoor
Outdoor
Radiator
This is an example of simple 2 zone control without using buffer tank.
Built-in pump from Indoor Unit served as a pump in zone 1.
Install mixing valve, pump and thermistor (specified by Panasonic) on zone 2 circuit.
Please be sure to assign high temperature side to zone 1 as temperature of zone 1 cannot be adjusted.
Zone 1 thermistor is required to display temperature of zone 1 on remote controller.
Circulation water temperature of both circuits can be set independently.
(However, temperature of high temperature side and low temperature side cannot be reversed)
This system requires the Optional PCB (CZ-NS5P).
(NOTE)
• Thermistor 1 does not affect operation directly. But error happens if it is not installed.
• Please adjust flow rate of zone 1 and zone 2 to be in balance. If it is not adjusted correctly, it may affects the performance.
(If zone 2 pump flow rate is too high, there is possibility that no hot water flowing to zone 1.)
Flow rate can be confirmed by “Actuator Check” from maintenance menu.
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Zone and Sensor - 2 Zone system
Zone 1:Sensor
Room thermostat
Internal
Zone 2
Swimming pool
T
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Zone and Sensor - 2 Zone system
Zone 1:Sensor
Water temperature
Zone 2:Sensor
Room
Water temperature
Operation setup
Heat
T for heating ON – 1°C
Cool
T for cooling ON – 1°C
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Zone and Sensor - 1 Zone system
Zone :Swimming pool
T

17
1-2. Introduce applications of system that uses optional equipment.
DHW (Domestic Hot Water) Tank connection
Outdoor
Tank
Tank thermistor
3-way valve for tank
Booster heater
Indoor
Floor heating
This is an application that connects the DHW tank to the Indoor Unit through 3-way valve.
DHW tank’s temperature is detected by tank thermistor (specified by Panasonic).
Tank + Solar connection
Indoor
Outdoor
Tank
Tank thermistor
3-way valve for tank
Solar pump
Floor heating
Solar thermistor
This is an application that connects the DHW tank to the Indoor Unit through 3-way valve before connect the solar water heater to heat up
the tank. DHW tank’s temperature is detected by tank thermistor (specified by Panasonic). Solar panel’s temperature is detected by solar
thermistor (specified by Panasonic).
DHW tank shall use tank with built-in solar heat exchange coil independently.
Heat accumulation operates automatically by comparing the temperature of tank thermistor and solar thermistor.
During winter season, solar pump for circuit protection will be activated continuously. If does not want to activate the solar pump operation,
please use glycol and set the anti-freezing operation start temperature to -20°C.
This system requires Optional PCB (CZ-NS5P).
NOTE : Room thermistor zone 1 and External room thermostat zone 1 must be connected to main indoor PCB only.
Buffer tank connection
Outdoor
Thermistor
Buffer tank
Pump
Indoor
Floor heating
This is an application that connects the buffer tank to the Indoor Unit.
Buffer tank’s temperature is detected by buffer tank thermistor (specified by Panasonic).
This system requires Optional PCB (CZ-NS5P).
NOTE : Buffer tank thermistor, Room thermistor zone 1 and External room thermostat zone 1 must be connected to main indoor PCB only.
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Tank connection - Yes
Solar connection - Yes
DHW tank
T turn ON
T turn OFF
Antifreeze
Hi limit
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Buffer Tank connection - Yes
T for buffer tank
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - No
Tank connection - Yes

18
Buffer tank + Solar
Solar thermistor
Thermistor
Solar pump
Mixing valve
Floor heating
Pump
Buffer tank
Outdoor
Indoor
This is an application that connects the buffer tank to the Indoor Unit before connecting to the solar water heater to heat up the tank.
Buffer tank’s temperature is detected by buffer tank thermistor (specified by Panasonic).
Solar panel’s temperature is detected by solar thermistor (specified by Panasonic).
Buffer tank shall use tank with built-in solar heat exchange coil independently.
During winter season, solar pump for circuit protection will be activated continuously. If does not want to activate the solar pump operation,
please use glycol and set the anti-freezing operation start temperature to -20°C.
Heat accumulation operates automatically by comparing the temperature of tank thermistor and solar thermistor.
This system requires Optional PCB (CZ-NS5P).
NOTE : Buffer tank thermistor, Room thermistor zone 1 and External room thermostat zone 1 must be connected to main indoor PCB only.
Boiler connection
Thermistor
Boiler
Mixing
valve
Floor heating
Pump
Buffer tank
Outdoor
Indoor
This is an application that connects the boiler to the Indoor Unit, to compensate for insufficient capacity by operate boiler when outdoor
temperature drops & heat pump capacity is insufficient.
Boiler is connected parallel with heat pump against heating circuit.
There are 3 modes selectable by remote controller for boiler connection.
Besides that, an application that connects to the DHW tank’s circuit to heat up tank’s hot water is also possible.
(Operation setting of boiler shall be responsible by installer.)
This system requires Optional PCB (CZ-NS5P).
Depending on the settings of the boiler, it is recommended to install buffer tank as temperature of circulating water may get higher. (It must
connect to buffer tank especially when selecting Advanced Parallel setting.)
NOTE : Buffer tank thermistor, Room thermistor zone 1 and External room thermostat zone 1 must be connected to main indoor PCB only.
WARNING
Panasonic is NOT responsible for incorrect or unsafe situation of the boiler system.
CAUTION
Make sure the boiler and its integration in the system complies with applicable legislation.
Make sure the return water temperature from the heating circuit to the Indoor Unit does NOT exceed 55°C.
Boiler is turned off by safety control when the water temperature of the heating circuit exceed 85°C.
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Bivalent - Yes
Turn ON: outdoor temp
Control pattern
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Buffer Tank connection - Yes
T for buffer tank
Solar connection - Yes
Buffer tank
T turn ON
T turn OFF
Antifreeze
Hi limit

19
Bind optional
cables with
these bands
Power Supply 1
RCCB/ELCB
Power Supply 2
RCCB/ELCB
Holder (Clamper)
Indoor terminal
for connecting
cables Bind optional
cables with
these bands
Main PCB 4
How to guide the optional cables and power supply cord
(view without internal wiring)
Optional cables:
• External control cable
• Tank sensor cable
• Room sensor zone 1
• Outdoor air sensor
cable
• Tank OLP cable
• Remote controller
cable
• Buffer tank sensor
Optional cables:
• 3-way valve
cable
• 2-way valve cable
• Room thermostat zone 1 cable
• Booster heater cable
• Extra pump cable
• Boiler contact cable/ Defrost signal cable
• Power Supply 1 cord
• Power Supply 2 cord
• Indoor Unit/Outdoor Unit Connecting cable
• For connection to Optional PCB 9
1. By connecting Optional PCB, 2 Zone temperature control can
be achieved. Please connect mixing valves, water pumps and
thermistors in zone 1 and zone 2 to each terminals in Optional
PCB.
Temperature of each zone can be controlled independently by
remote controller.
2. Pump zone 1 and zone 2 cable shall be (2 x min 1.5 mm²), of type
designation 60245 IEC 57 or heavier.
3. Solar pump cable shall be (2 x min 1.5 mm²), of type designation
60245 IEC 57 or heavier.
4. Pool pump cable shall be (2 x min 1.5 mm²), of type designation
60245 IEC 57 or heavier.
5. Room thermostat zone 2 cable shall be (4 x min 0.5 mm²), of
type designation 60245 IEC 57 or heavier.
6. Mixing valve zone 1 and zone 2 cable shall be (3 x min 1.5 mm²),
of type designation 60245 IEC 57 or heavier.
7. Room sensor zone 1 and zone 2 cable shall be (2 x min 0.3 mm²),
double insulation layer (with insulation strength of minimum 30V)
of PVC-sheathed or rubber-sheathed cable.
8. Pool water sensor and solar sensor cable shall be (2 x min
0.3 mm²), double insulation layer (with insulation strength of
minimum 30V) of PVC-sheathed or rubber-sheathed cable.
9. Water sensor zone 1 and zone 2 cable shall be (2 x min 0.3 mm²),
double insulation layer of PVC-sheathed or rubber-sheathed cable.
10.Demand signal cable shall be (2 x min 0.3 mm²), double insulation
layer of PVC-sheathed or rubber-sheathed cable.
11.SG signal cable shall be (3 x min 0.3 mm²), double insulation layer
of PVC-sheathed or rubber-sheathed cable.
12.Heat/Cool switch cable shall be (2 x min 0.3 mm²), double insulation
layer of PVC-sheathed or rubber-sheathed cable.
13.External compressor switch cable shall be (2 x min 0.3 mm²),
double insulation layer of PVC-sheathed or rubber-sheathed cable.
2 How to fix cable
Connecting with external device (optional)
•All connections shall follow to the local national wiring standard.
• It is strongly recommended to use manufacturer-recommended
parts and accessories for installation.
• For connection to main PCB 4
1. Two-way valve shall be spring and electronic type, refer to “Field
Supply Accessories” table for details. Valve cable shall be (3 x
min 1.5 mm2), of type designation 60245 IEC 57 or heavier, or
similarly double insulation sheathed cable.
* note:- Two-way Valve shall be CE marking compliance
component.
- Maximum load for the valve is 9.8VA.
2. Three-way valve shall be spring and electronic type. Valve cable
shall be (3 x min 1.5 mm2), of type designation 60245 IEC 57 or
heavier, or similarly double insulation sheathed cable.
* note:- Shall be CE marking compliance component.
- It shall be directed to heating mode when it is OFF.
- Maximum load for the valve is 9.8VA.
3. Room thermostat zone 1 cable must be (4 or 3 x min 0.5 mm2),
of type designation 60245 IEC 57 or heavier cord, or similarly
double insulation sheathed cable.
4. Maximum output power of booster heater shall be ≤3 kW. Booster
heater cable must be (3 x min 1.5 mm2), of type designation 60245
IEC 57 or heavier.
5. Extra pump cable shall be (2 x min 1.5 mm²), of type designation
60245 IEC 57 or heavier.
6. Boiler contact cable/ defrost signal cable shall be (2 x min 0.5
mm²), of type designation 60245 IEC 57 or heavier.
7. External control shall be connected to 1-pole switch with min
3.0 mm contact gap. Its cable must be (2 x min 0.5 mm2), double
insulation layer of PVC-sheathed or rubber-sheathed cable.
* note:- Switch used shall be CE compliance component.
- Maximum operating current shall be less than 3Arms.
8. Tank sensor shall be resistance type, please refer to Graph 7.1 for
the characteristic and details of sensor. Its cable shall be (2 x min
0.3 mm2), double insulation layer (with insulation strength of min
30V) of PVC-sheathed or rubber-sheathed cable.
-30 -20 -10 0 10 20 30
16000
14000
12000
10000
8000
˚C
6000
4000
2000
0
Tank sensor characteristic
Resistance :
Tank Sensor Resistance Vs Temperature
9. Room sensor zone 1, outdoor air sensor and buffer tank sensor
cable shall be (2 x min 0.3 mm²) double insulation layer of PVC-
sheathed or rubber-sheathed.
10.Tank OLP cable must be (2 x min 0.5 mm2), double insulation
layer of PVC-sheathed or rubber-sheathed cable.

20
Bind optional
cables with
these bands
Optional
PCB 9
Bind all optional
cables with
these bands
Bind optional
cables with
these bands
Bind all optional
cables with these
bands
Power Supply 1
RCCB/ELCB
Power Supply 2
RCCB/ELCB
Holder (Clamper)
Indoor terminal
for connecting
cables
How to guide the optional cables and power supply cord
(view without internal wiring)
Optional cables:
• External control cable
• Tank sensor cable
• Outdoor air sensor cable
• Tank OLP cable
• Remote controller cable
• Buffer tank sensor cable
• Room sensor zone 1 cable
• Room sensor zone 2 cable
• Pool sensor cable
• Water sensor zone 1 cable
• Water sensor zone 2 cable
• Demand signal cable
• Solar sensor cable
• SG signal cable
• Heat/Cool switch cable
• External Compressor switch cable
Optional cables:
• 3-way valve cable
• 2-way valve cable
• Room thermostat zone
1 cable
• Booster heater cable
• Extra pump cable
• Boiler contact cable/
Defrost signal cable
• Power Supply 1 cord
• Power Supply 2 cord
• Indoor Unit/Outdoor
Unit Connecting cable
Optional cables:
• Pump zone 1 cable
• Pump zone 2 cable
• Error signal cable
• Solar pump cable
• Pool pump cable
• Room thermostat zone 2 cable
• Mixing valve zone 1 cable
• Mixing valve zone 2 cable
from Optional
PCB
from Optional PCB
Terminal screw on PCB Maximum tightening torque cN•m {kgf•cm}
M3 50 {5.1}
M4 120 {12.24}
Connecting Cables Length
When connecting cables between Indoor Unit and external devices,
the length of the said cables must not exceed the maximum length
as shown in the table.
External device Maximum cables length (m)
Two-way valve 50
Three-way valve 50
Mixing valve 50
Room thermostat 50
Booster heater 50
Extra pump 50
Solar pump 50
Pool pump 50
Pump 50
Boiler contact/ Defrost signal 50
External control 50
Tank sensor 30
Room sensor 30
Outdoor air sensor 30
Tank OLP 30
Buffer tank sensor 30
Pool water sensor 30
Solar sensor 30
Water sensor 30
Demand signal 50
SG signal 50
Heat/Cool switch 50
External compressor switch 50
Connection of the main PCB
Buffer Tank sensor
OLP for booster heater
Zone 1 room sensor
Outdoor air sensor
Tank sensor
External control
Remote controller
Boiler contact/
Defrost signal
Extra pump
Booster heater
Room
Thermostat 1
3-way
valve
2-way
valve
Signal inputs
Optional Thermostat L N =AC230V, Heat, Cool=Thermostat heat, Cool
terminal
OLP for booster
heater
Dry contact Vcc-Bit1, Vcc-Bit2 open/short
(System setup necessary)
It is connected to the safety device (OLP) of
DHW tank.
External control
Dry contact Open=not operate, Short=operate
(System setup necessary)
Able to turn ON/OFF the operation by external
switch
Remote controller Connected (Please use 2 cores wire for relocation and extension. Total cable length shall be 50m
or less.)