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PMML0291A rev.2 - 09/2014
INSTALLATION
ENGLISH
Connection procedure
Perform the exible water pipes connection between indoor unit
and domestic hot water tank (Indoor unit water connections) as
follows:
1 Remove the indoor unit cover’s protection to facilitate the con-
nection procedure.
2 Remove the metal plugs (Heating coil connections) from the
3-way valve and the T-branch. If necessary, disconnect the
3-way valve motor (upper part) to ease the installation pro-
cedure.
3-way valve con-
nection for heating
coil inlet
Metal plug
3-way valve
motor
(upper part)
3-way valve T-branch
Metal
plug
T-branch connec-
tion for heating
coil outlet
3-way valve connection for
heating coil inlet
(Left side view)
T-branch connection for
heating coil outlet
3 Before performing the water pipe connections, bend the pipes
approximately as in the following gures. By this way, the pipe
end which will be connected to the tank’s heating coil, will be
placed closer to its nal connection position.
Recommended position of the heating coil inlet
pipe (short pipe 365 mm tube length)
(Front view)
3-way valve con-
nection for heating
coil inlet
Recommended position of the heating coil outlet
pipe (long pipe 960 mm tube length)
(Front view)
(Top view)
T-branch con-
nection for
heating coil
outlet
R>90mm
R ≥ 90mm
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