169
Installation
8.4.7.4
WATER PIPING
8.3.7.4.1 GENERAL NOTES BEFORE PERFORMING
PIPING WORK
It is advisable to insulate the water pipes, joints and
connections in order to avoid heat loss and dew
condensation on the surface of the pipes or accidental
injuries due to excessive heat on piping surfaces.
piping inlet and outlet in order to avoid vibration
transmission.
Water circuit must be performed and inspected by a
licensed technician and must comply with all relevant
European and national regulations.
Proper water pipe inspection should be performed after
piping work to assure there is no water leakage in the
space heating circuit.
8.3.7.4.2 WATER PIPING CONNECTION
(1) Piping location and connection size
The unit is factory supplied with two unions to be connected
location of the water pipes location and connection sizes.
Water Inlet
Water Outlet
Description Connection size
Water Inlet G1” (female)
Water Outlet G1” (female)
(2)
with the unit. For convenience of repair and maintenance,
Gaskets
Connector(G1" (male))
Gaskets
(field-supplied)
Rubber gasket must be mounted (accompanied with the unit),
otherwise water leakage may be caused.
Note the location of ball valve, and the direction of ball valve
and drain valve, which are essential to maintenance.
and make sure the piping is aligned properly.
Deformation of the piping can cause malfunctioning of the unit.
Screw up ball valves and other pipeline connections by using
two wrenches.
(3) Additional water strainer
Provide a 50 mesh or more water strainer at the water inlet
through a narrow space between the plates.Therefore, there
is a possibility that freezing or corrosion may occur if foreign
This is not required when cooling mode is not used.
Water Strainer
(50 mesh or more recommended)
Water Flow Direction →
The water piping connection needs to be completed after
8.3.7.4.3 SUSPENSION OF WATER PIPING
Suspend the water piping at certain points and prevent the
water piping from being in direct contact with the building:
walls, ceilings, etc…
If there is direct contact between pipes, abnormal sound may
occur due to the vibration of the piping. Pay special attention
in cases of short piping lengths.
may expand and contract).
Some examples for suspension method are shown below.
For suspending
hoisting
For piping along
the wall
For instant
installation work
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