Panasonic WH-WDG09LE5 Air-To-Water Heat Pump Outdoor Unit Installation Manual
SAFETY PRECAUTIONS
- Read the following “SAFETY PRECAUTIONS” carefully before installation.
- Electrical work 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 or negligence of the instruction will cause harm or damage, and the seriousness is classified by the following indications.
- Please leave the installation manual with the unit after installation.
The items to be followed are classified by the symbols:
- Carry out test running 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.
- This appliance is not intended for accessibility by the general public.
- If there is any doubt about the installation procedure or operation, always contact the authorized dealer for advice and information.
PRECAUTION FOR USING R290 REFRIGERANT
- pay careful attention to the following points:
Attached accessories
Optional accessories
- It is strongly recommended to install a Base Pan Heater (optional) if the outdoor unit is install in cold climate area. Refer the Base Pan Heater (optional) installation instruction for details of installation.
SELECT THE BEST LOCATION
- If an awning is built over the unit to prevent direct sunlight or rain, be careful that heat radiation from the condenser is not obstructed.
- For WH-WDG05LE5, WDG07LE5 and WDG09LE5, avoid installations in areas where the ambient temperature may drop below-25°C.
- A protective zone is defi ned for the area close around the product. See section “2 Protective zone”.
- Do not place any obstacles which may cause a short circuit of the discharged air.
- If outdoor unit installed near sea, region with high content of Sulphur or oily location (e.g. machinery oil, etc.), it lifespan maybe shorten.
- Please follow the table below for water piping specifications.
PROTECTIVE ZONE
This outdoor unit is filled with R290(Extremely flammable gas, safety A3 group per ISO 817). Note that this refrigerant has a higher density than air. In case of a refrigerant leak, the leaked refrigerant may accumulate near the ground. Prevent accumulation of refrigerant in any way that is potentially dangerous, explosive or risk suffocation. Prevent refrigerant from entering the building through building openings. Prevent accumulation of refrigerant in the drain grooves. A protective zone is defined around this outdoor unit. There must be no building openings, windows, doors, light shafts, cellar entrances, escape hatches, flat-roof windows or ventilation openings in the protective zone. There must be no ignition sources, such as heat above 360°C, sparks, open flame, plug sockets, light switches, lamps, electrical switches or other permanent ignitions sources, in the protective zone. The protective zone must not extend to adjacent buildings or public traffic areas (boundaries of neighbors, the public road, neighbor’s private roads, subsidence area, depressions, pump shafts, sewers intakes, waste water shafts and so on.). In the protective zone, you are not permitted to make any subsequent structural alterations which infringe the stated rules for the protective zone.
- Protective zone for ground installation (or flat-roof installation) at the open areas
- Protective zone for ground installation in front of a building wall
- Protective zone for ground installation in a building corner
- Protective zone for wall installation in front of a building wall
The protective zone under the product extends to the fl oor.
- Protective zone for wall installation in a building corner
The protective zone under the product extends to the floor.
INSTALL THE OUTDOOR UNIT
After selecting the best location, start installation according to Installation Diagram.
- When installing at roof, please consider strong wind and earthquake. Please fasten the installation stand firmly with bolt or nails.
- When installing to a concrete or solid surface, use M10 or a W 3/8 bolts and nuts to secure the unit. Ensure that it installed upright on a horizontal plane. (Use an anchor bolt for the installation as shown in the diagram below.)
DISPOSAL OF OUTDOOR UNIT DRAIN WATER
- When a Drain elbow 1 is used, please ensure to follow below:
- the unit should be placed on a stand which is taller than 50 mm.
- cover the ø32mm holes with Rubber cap 2 (refer to illustration below).
- use a tray (fi eld supply) when necessary to dispose the outdoor unit drain water.
- If the unit is used in an area where temperature falls below 0°C for 2 or 3 consecutive days, it is recommended not to use the Drain elbow 1 and Rubber cap 2, for the drain water freezes and the fan will not rotate.
- Pressure relief valve drainage pipe-work
- Use a drain hose with inner diameter of 15mm.
- The hose must be installed in a continuously downward direction and left open to the frost-free atmosphere.
- If drain hose is long, use a metal support fi xture along the way to eliminate the wavy pattern of drain hose.
- Water will drip from this hose, therefore the outlet of this hose must be installed in an area where the outlet cannot become blocked.
- Do not insert this hose into sewage or drain pipe that may generate ammonia gas, sulfuric gas, etc.
- If necessary, use a hose clamp to tighten the hose at drain hose connector to prevent it from leaking.
CONNECT THE CABLE TO THE OUTDOOR UNIT
FOR DETAIL REFER TO WIRING DIAGRAM AT UNIT)
- Attach the discharge grille (left side) 3 for safety before connecting the cable.
- Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed flexible cable (see below table), type designation 60245 IEC 57 or heavier cable. Sheath diameter of connecting cable shall be within specification (see below table) to fi t cable gland.
- Route the cable as follows
*1 Locally procured cabtyre cables with the specified diameter.
*2 Must be fastened with the specified torque Viewpoint of gas intrusion prevention.
- Remove the front plate (Fig. 4-1)
- Remove the terminal cover and cable gland cap (Fig. 4-2)
- Insert the cabtyre cable *1 (Fig. 4-3, 4-4) (Pulled in from the rear panel and inserted from the bottom of the electric controller BOX)
- Connect to terminal block (Fig. 4-5)
- Fasten the cable gland *2 (Fig. 4-4)
- Set the terminal cover *2 (Fig. 4-2)
- Set the front plate (Fig. 4-1)
PIPE INSULATION
- Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation Diagram. Please wrap the insulated piping end to prevent water from going inside the piping.
INSTALL THE DISCHARGE GRILLE
- Remove the 3 screws fastened to the cabinet front plate. (Fig. 6-1)
- Insert 4 claws of the discharge grille (right side) 4 and fasten the 3 screws. (Fig. 6-2)
REFERENCE LINK
