Panasonic WH-MDC05F3E5, Service Manual

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6 External water filter (field supply)
Clean the external water filter in regularly basic.
o
External water filter is located inside the tube connector which is before water inlet connector of mono
bloc unit (indicated with “WATER IN”). (Refer to figure below)
o
Use spanner to detach the tube connector nut.
o
Take out the filter carefully so that not deforms it shape.
o
Use tap water only to wash the residue on the filter. If necessary, gently use soft brush only to clean the
hard dirt.
o
After clean, put it back to the original location and tighten the nut connection with torque wrench.
7 Check Air Purge Valve
Air purge valve must be installed at all high points in a closed water circuit system.
An automatic air purge valve is provided inside the indoor unit. To automatically purge the air from the
system, turn the plug on the air outlet anticlockwise by one complete turn from fully closed position.
Excessive air is automatically purged if the plug is kept in this position.
Plug (turn
anticlockwise
by one
complete
turn)
Air purge valve
8 Expansion Vessel Pre Pressure Checking
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Expansion Vessel with 6 L air capacity and initial pressure of 1 bar is installed in this Mono bloc unit.
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Total amount of water in system should be below 150 L.
(Note: This amount of water is not include the tank unit volume)
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If total amount of water is more than 150 L, please install additional expansion vessel (field supply).
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Please keep the installation height difference of system water circuit within 10 m.
(Inner volume of same Mono bloc unit is about 3 L)
9 Base Pan Heater (Optional)
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It is strongly recommended to install a Base Pan Heater (optional) if the Mono bloc unit is installed in
cold climate area. Refer the Base Pan Heater (optional) installation instruction for details of installation.