Space Heating Pipes Connection; Drain Pipes Connection - Hitachi YUTAKI RWM-2R1E Installation & Operation Manual

MAINTENANCE
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Removing the electrical box cover
In order to access to the electrical components,
follow these steps:
1 Remove the indoor unit front cover.
2 Unscrew the 2 front screws and the 2 lower
screws which fixes the electrical box to the unit
structure.

13.1.5 Space heating pipes connection

The unit is factory supplied with two shutdown valves which have to be connected to the water inlet / outlet connections. With these
shut-off valves it is very practical to connect the indoor unit to the heating system by using the factory supplied gaskets just below
the valves (G 1-1/4" connection). Then, the space heating installation can be carried out.

13.1.6 Drain pipes connection

For a correct drainage, connect the drain pipe for the safety valve to the general draining system.
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N O T E
• The safety valve is activated when water pressure reaches 3 bars.
• Drain taps must be provided at all low points of the installation to permit complete drainage of the circuit during servicing.
335 PMML0575 rev.2 - 03/2022
Shut-off valves
Gaskets
Drain pipe for
safety valve
Safety
valve