Ramsond R74GW3 Installation And Repair Manual - page 8
6
INSTALLATION & REPAIR GUIDE
Split Wall-Mounted air conditioner
After the pipieline connection is done,use a leakage inspection device or soap suds to carefully check
if there is any leakage at the joints.This is an imporant step to ensure the quality of installation.Once
a leakage is detected,proper treatment should be taken immediately.
*Gas leakage inspection
*
Pipelines connection for Split type quick coupler model
*
1.Connecting pipe bending minimum radius parameters
(Table 3)
2.Quick coupler assembly and disassembly limit:
the assembly and disassembly times are inadvisably
more than 7.
*
Notes on installation of quick coupler:
Table 3 Minimum bending radius
Normial
diameter(mm)
Minimum bending
radius(mm)
cooling capacity
DN8(5/16")
DN10-12
(1/2")
80(3")
100(4")
2100~2300W
(7000~8000BTU)
2500~5100W
(9000~18000BTU)
6100~7000W
(22000~24000BTU)
150(6")
DN14-16
(5/8")
* If you purchase the machine for split type quick coupler model,please adopt the following
pipeplines connection procedures:
1.Remove the dust caps from the indoor and outdoor units,
and the connecting pipe.
2.Align the joint counter of connecting pipe with the proper
indoor and outdoor joint conic surfaces,tighten the connecting
nut manually.Then,make it secure with a wrench as shown
Fig.7 ,applying to above torque Table 1.
3.Remove the two valve core caps from the outdoor unit.
4.Turn on the high and low pressure valve cores with an
socket wrench,then tighten the two valve core caps of the
outdoor unit (Fig.8).
5.Finally ,wrap the hot insulating cotton around the joints
of indoor and outdoor units.
Fig.7
Fig.8
High pressure valve
Valve core cap
Low pressure valve
Quick coupler
(wrapping with insulating cotton)