33
Installation and Maintenance
Service Manual
chassis of
outdoor unit
drainage joint
wiring
board
brown
wire binder
yellow-
green
power
connection
wire
blue
black
Remove the
screw to remove
the big handle
fixing screw
grounding position
wiring board
Fig.24
Fig.27
Fig.25
Fig.26
50cm
wall pipe
gum
1. Confirm the position of pipe hole and drill a hole inclined to
outside.(As show in Fig.24)
2. Assemble wall pipe to protect the piping and cable.
3. The distance between the highest position of wall hole and the
bottom of air conditioner should be no more than 50cm (If the
height of wall hole doesn’t meet the requirement, please drill hole
again to avoid water leakage.)
Use vacuum pump
(As show in Fig.28)
1. Remove the valve caps on the liquid valve and gas valve and
the nut of refrigerant charging vent.
2. Connect the charging hose of piezometer to the refrigerant
charging vent of gas valve and then connect the other charging
hose to the vacuum pump.
3. Open the piezometer completely and operate for 10-15min to
check if the pressure of piezometer remains in -0.1MPa.
4. Close the vacuum pump and maintain this status for 1-2min
to check if the pressure of piezometer remains in -0.1MPa. If the
pressure decreases, there may be leakage.
5. Remove the piezometer, open the valve core of liquid valve and
gas valve completely with inner hexagon spanner.
6. Tighten the screw caps of valves and refrigerant charging vent.
1. Remove the handle of outdoor unit.
2. Remove the wire clamp; connect the power connection to the
wiring terminal and then fix it. The wire distribution must be in
accordance with the indoor unit.
3. Fix the power connection wire with wire binder.
4. Make sure the wire is xed properly.
5. Assemble the handle of outdoor unit.
(As show in Fig.26)
Fix the outdoor unit on the selected
position
(As show in Fig.25)
1. Match the flared port of connection
pipe to the valve, and then tighten them
with hand.
2. Tighten them with torque wrench.
Note:
welding the pipes when lengthening the
connection pipe.
When the unit is heating, the condensation water formed in the
outdoor unit can be drained out properly through the drainage
hose. Installation: Install the outdoor drainage joint in the Φ25
hole on the chassis as shown in the figure. Then connect the
drainage pipe to the drainage port, so that the condensation water
formed in the outdoor unit can be drained out to a proper place.
(As
show in Fig.27)
1. With leakage detector:
Check if there is leakage with leakage detector.
2. With soap water:
If leakage detector is not available, please use soap water for
leakage detection.Apply soap water at the suspected position and
keep the soap water for more than 3min. If there are air bubbles
coming out of this position, there's a leakage.(As show in Fig.29)
Step one: open piping hole
Step ve: Vacuum pumping
Step six: Leakage detection
Step three: connect outdoor electric wire
Step four: Drainage of outdoor unit condensation
water (not applicable for cooling only unit)
Step two: Pipe connection of outdoor unit
liquid valve
gas valve
g
nut of refrigerant
charging vent
vacuum pump
piezometer
valve cap
Lo Hi
inner hexagon
spanner
open
close
Fig.28
To Next Page
Loading...
