Panasonic WH-UD05JE5 Service Manual page 5

Do not pierce or burn as the appliance is pressurized. Do not expose the appliance to heat, flame, sparks, or other sources of ignition.
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Else, it may explode and cause injury or death.
13. Do not add or replace refrigerant other than specified type. It may cause product damage, burst and injury etc.
Do not place containers with liquids on top of the Tank Unit. It may cause Tank Unit damage and/or fire could occurs if they leak or
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spill onto the Tank Unit.
Do not use joint cable for Tank Unit / Outdoor Unit connection cable. Use specified Tank Unit / Outdoor Unit connection cable, refer to
instruction 4 CONNECT THE CABLE TO THE TANK UNIT and connect tightly for Tank Unit / Outdoor Unit connection. Clamp the
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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 local wiring standard, national regulation, legislation and this installation instructions. An independent
16. 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.
Engage authorized dealer or specialist for installation. If installation done by the user is incorrect / defective, it will cause water
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leakage, electrical shock or fire.
For water circuit installation work, follow to relevant European and national regulations (including EN61770) and local plumbing and
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building regulation codes.
 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.
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 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 40 mg/10 m.
When installing or relocating Tank Unit, do not let any substance other than the specified refrigerant, eg. air etc. mix into refrigeration
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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
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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
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properly done, the set will drop and cause injury.
Do not use joint cable for outdoor connection cable. Use specified outdoor connection cable, refer to instruction 5 CONNECT THE
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CABLE TO THE OUTDOOR UNIT and connect tightly for outdoor 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.
Wire routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixed perfectly, it will
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cause fire or electrical shock.
This equipment is strongly recommended to be installed with Residual Current Device (RCD) on-site according to the respective
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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
26. refrigeration piping and valves at opened position 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 refrigeration piping while
27. compressor is operating and valves are opened will cause suck-in of air, abnormal high pressure in refrigeration 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
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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
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with fire.
Ventilate the room if there is refrigerant gas leakage during operation. Extinguish all fire sources if present. It may cause toxic gas
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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
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electrical shock.
32. Only use the supplied or specified installation parts. Else, it may causes unit vibrate, fall, water leakage, electrical shock or fire.
33. If there is any doubt about the installation procedure or operation, always contact the authorized dealer for advice and information.
34. 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
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electrical contact between equipment and building is allowed. Insulator must be installed in between.
Any work carried out on the Tank Unit / Outdoor Unit after removing any panels which is secured by screws, must be carried out under
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the supervision of authorized dealer and licensed installation contractor.
37. This system is multi supply appliance. All circuits must be disconnected before accessing the unit terminals.
For cold water supply has a backflow regulator, check valve or water meter with check valve, provisions for thermal expansion of
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water in the hot water system must be provided. Otherwise it will cause water leakage.
WARNING
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