Panasonic UX09 E5 Serie Manual De Instalación página 73

Unidad exterior de bomba de calor de aire a agua
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Choose proper sealer which can withstand the pressures and temperatures
of the system.
Make sure to use two spanners to tighten the connection. Further tighten
the nuts with torque wrench in specifi ed torque as stated in the table.
Cover the pipe end to prevent dirt and dust when inserting it through a wall.
Choose proper sealer which can withstand the pressures and temperatures
of the system.
If non-brass metallic piping is used for installation, make sure to insulate
the pipes to prevent galvanic corrosion.
Use correct nut for all Tank Unit tube connections and clean all tubes
with tap water before installation. See Tube Position Diagram for detail.
Tube Connector
Nut Size
g
h
&
i
j
&
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 9 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
UX09*E5*
UX12*E5*
ADC1216*E5*
UD12*E5*
UD16*E5*
(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) and Pressure Relief 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)
Recommended Pressure Relief Valve specifi cations:
- Set pressure: 1.0 MPa (10.0 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.
Torque
RP 1¼"
117.6 N•m
RP ¾"
58.8 N•m
CAUTION
Rated Flow Rate (L/min)
Cool
Heat
20.1
25.8
28.7
34.4
28.7
34.4
35.0
45.9
(C) Pressure Relief Valve Drainage
Pipework
Connect a drain hose with inner
diameter of 15 mm to Pressure Relief
Valve Drainage
.
h
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.
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 Pipework
Use R½" male connector for Domestic Hot Water Tank Discharge
connection.
Piping must to be installed in a continuously downward direction and in a
frost-free environment.
Discharge pipes must be visible and away from electrical components.
Guide the drain hose to outdoor as illustrated at the right fi gure.
It is recommended to fi t a tundish into this
be visible and positioned away from frost environment and electrical
components.
(E) Drain Elbow and Hose Installation
Fix the Drain Elbow 2 and Packing 3 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.
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.
Drain
hose
connector
Drain
hose
Illustration of how to fi x
drain hose to Tank Unit
Discharge below
fi xed grating
Fixed grating
Trapped gulley
Possible wall
Illustration of guide
drain hose to outdoor
g
pipework. Tundish should
g
3
Packing
Drain
2
Elbow
5

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