PIPING WORK
● Location of Refrigerant and Water Pipeline are shown
below.
115
61
84
84
84
84
8.2 REFRIGERANT PIPING CONNECTION
Piping connection size of indoor unit is shown below.
Model
Gas pipe
044(2.0HP)
Ø 12.7 (1/2")
060(2.5HP)
080(3.0HP)
Ø 15.88 (5/8")
Torque required is shown below.
Pipe Diameter
Ø 6.35
Ø 9.53
Ø 12.7
Ø 15.88
Screw up the nut cap by two wrenches. Heat preservation material
on site should be used to prevent heat leakage of gas pipe, liquid
pipe and connecting nut cap.
Unit: mm
Liquid pipe
Ø 6.35 (1/4")
Torque(N•m)
14~18
33~42
49~61
63~77
8.3 WATER PIPING CONNECTION
● Piping connection size of indoor unit.
Space
heating/
DHW Outlet
cooling
(Hot Water)
Model
water inlet
044(2.0HP)
G1"
060(2.5HP)
(female)
080(3.0HP)
Torque
Required
8.3.1 Space heating/cooling pipes connection
(1) Install shut-off valves
A shut-off valve with filter is provided with the unit. For
convenience of repair and maintenance, install the
shut-off valve with filter on water inlet pipe of indoor unit
as follows. The space heating/cooling installation can
be carried out referring to section 9.1.
The shut-off valve can be connected to the water outlet of indoor unit
directly. The shut-off valve with filter must be installed at water inlet
of indoor unit, and water flow direction and installation direction must
be confirmed as shown below. The gasket in accessories can be
installed at the two connections of shut-off valve and shut-off valve
with filter.
12
Space
DHW Inlet
heating/
(Cold Water)
cooling water
outlet
G3/4"
G3/4"
G1"
(female)
(female)
(female)
40~50(N•m)