Panasonic R32 Installationsanleitung Seite 8

Do not overtighten, overtightening may cause water leakage.
•
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.
•
Failure to connect the tube appropriately might cause the Tank
Unit malfunction.
•
Protection From Frost:
If the Tank Unit is being exposed to frost while power supply
failure or pump operating failure, drain the system. When water is
idle inside the system, freezing up is very likely to happen which
could damage the system. Make sure the power supply is turned
off before draining. Heater Assembly 8 may be damaged under
dry heating.
•
Corrosion Resistance:
Duplex stainless steel is naturally corrosion resistant to mains
water supply. No specifi c maintenance is required to maintain
this resistance. However, please note that Tank Unit is not
guaranteed for use with a private water supply.
•
It is recommended to use a tray (fi eld supply) to collect water
from the Tank Unit if water leakage occur.
(A) Space Heating/Cooling Pipework
•
Connect Tank Unit Tube Connector g to outlet connector of
Panel/Floor heater.
•
Connect Tank Unit Tube Connector h to inlet connector of Panel/
Floor heater.
•
Failure to connect the tube appropriately might cause the Tank
Unit malfunction.
•
Refer below table for the rated fl ow rate of each particular
Outdoor Unit.
Model
Tank Unit Outdoor Unit
WH-UD03JE5*
WH-UD05JE5*
WH-ADC0309J3E5C
WH-UD07JE5*
WH-UD09JE5*
(B) Domestic Hot Water Tank Pipework
•
It's strongly recommended to install an expansion vessel (fi eld
supply) in the Domestic Hot Water Tank circuit. Refer Typical Piping
Installation section to locate the expansion vessel.
  Recommended pre-charge pressure of the expansion vessel
(fi eld supply) = 0.35MPa (3.5 bars)
•
In high water pressure or water supply is above 500kPa, please
install the Pressure Reducing Valve for water supply. If the pressure
higher than that, it might damage the Tank Unit.
•
A Pressure Reducing Valve (fi eld supply) with below specifi cation is
strongly advised to be installed along the line of the tube connector
i of Tank Unit. Refer Typical Piping Installation section to locate
both of these valves.
Recommended Pressure Reducing Valve specifi cations:
- Set pressure: 0.35 MPa (3.5 bars)
•
Must connect a faucet to Tank Unit Tube Connector j and main
water supply, in order to supply water with appropriate temperature
for shower or tap usage. Failure to do so might cause scalding.
•
Failure to connect the tube appropriately might causing the Tank
Unit malfunction.
(C) Pressure Relief Valve Drainage Pipework
•
Connect a drain hose to the Pressure Relief Valve hose outlet
•
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
tube.
•
The water may drip from this
discharge hose. Therefore must
guide the hose without close or
block the outlet of the hose.
8
CAUTION
Rated Flow Rate (l/min)
Cool Heat
9.2 9.2
12.9 14.3
19.2 20.1
23.5 25.8
Discharge below
fi xed grating
Fixed grating
Trapped gulley
Possible wall
Illustration of guide drain
hose to outdoor
•
Do not insert this hose into sewage hose or cleaning hose that
may generate ammonia gas, sulphuric gas etc.
•
If necessary, use a hose clamp to tighten the hose at drain hose
connector to prevent it from leaking.
•
Guide the drain hose to outdoor as illustrated at the right fi gure.
(D) Domestic Hot Water Tank Discharge (Drain Tap) and Safety
Relief Valve Pipework
•
Safety Relief Valve 0.8MPa (8 bars) incorporated in Domestic Hot
Water Tank.
•
Drain Tap and Safety Relief Valve discharge fi ttings share the
same drainage outlet.
•
Use R½" male connector for this drainage outlet connection (Tube
connector ).
g
•
Piping must always be installed in a continuously downward
direction. It must not be longer than 2m, with no more than 2 elbows,
and must not allow condensation to build up or freezing to occur.
•
The pipe from this drainage outlet fi tting must not be shut off. The
discharge must be freed.
•
The end of this pipework must be in such a way so that the outlet is
visible and can not cause any damage. Keep away from electrical
components.
•
It is recommended to fi t a tundish into this
should be visible and positioned away from frost environment and
electrical components.
(E) Drain Elbow and Hose Installation
•
Fix the Drain Elbow 3 and Packing 4 to the bottom of Drain
Water Hole .
i
•
Use inner diameter 17 mm drain hose in the market.
•
This hose must to be installed in a continuously downward
direction and in a frost-free environment. Improper drain piping
may cause water leakage hence damage the furnitures.
•
Guides this hose outlet to outdoor only.
•
Do not insert this hose into sewage or drain pipe that may
generate ammonia gas, sulphuric 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.
CONNECT THE CABLE TO
4
THE TANK UNIT
This section is for authorized and licensed electrician only. Work
behind the Control Board Cover 3 secured by screws must
only be carried out under supervision of qualifi ed contractor,
installation engineer or service person.
.
h
Please take extra precaution when open
the control board cover 3 and control
board 4 for unit installation and servicing.
Failure to do so may cause injury.
pipework. Tundish
g
Packing 4
3
Drain Elbow
WARNING
CAUTION