Gree GWH18RC-K3DNA2C, Руководство по обслуживанию

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39
Installation and Maintenance
Service Manual
(3) The water outlet can't be placed in water in order to drain
smoothly.(As show in Fig.26)
Liquid valve
Gas valve
Refrigerant charging
vent
Nut of refrigerant
Charging vent
Vacuum pump
Piezometer
Valve cap
Lo Hi
Inner hexagon
spanner
Open
Close
The drain hose can't be fluctuant
The drain hose
can't be fluctuant
The water
outlet can't be
fluctuant
NO. Items to be checked Possible malfunction
1
Has the unit been
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The unit may drop, shake or
emit noise.
2
Have you done the
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(heating) capacity.
3
Is heat insulation of
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It may cause condensation and
water dripping.
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It may cause condensation and
water dripping.
5
Is the voltage of power
supply according to the
voltage marked on the
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It may cause malfunction or
damage the parts.
6
Is electric wiring and
pipeline installed
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It may cause malfunction or
damage the parts.
7
Is the unit grounded
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It may cause electric leakage.
8
Does the power cord
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It may cause malfunction or
damage the parts.
9
Is there any obstruction
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(heating).
10
The dust and
sundries caused
during installation are
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It may cause malfunction or
damaging the parts.
11
The gas valve and liquid
valve of connection pipe
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,WPD\FDXVHLQVXI¿FLHQWFRROLQJ
(heating) capacity.
The water outlet
can't be placed
in water
1. Use Vacuum Pump
(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.
(As show in Fig.27)
1. Check after Installation
Check according to the following requirement after finishing
installation.
2. Test operation
(1) Preparation of test operation
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(2) Method of test operation
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controller to start operation.
Ɣ3UHVV02'(EXWWRQWRVHOHFW$872&22/'5<)$1DQG
HEAT to check whether the operation is normal or not.
Ɣ,IWKHDPELHQWWHPSHUDWXUHLVORZHUWKDQ ć , the air
conditioner can’t start cooling.
2. Leakage detection
(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.
8.7 Vacuum Pumping and Leak Detection
8.8 Check after Installation and Test
Operation
Fig.25
Fig.26
Fig.27