Kelvinator KSE26CRB Installation Manual - page 10
Kelvinator Air Conditioning test running 19
18 test running Kelvinator Air Conditioning
Indoor unit
check point
D
B
C
A
Outdoor unit
check point
Co ver
Man ua l c ontrol
button
AUTO/COOL
caution
A: Lo packed valve B: Hi packed valve C and D are ends of
indoor unit connection.
Test running
Perform test operation after completing gas leak check at
the flare nut connections and electrical safety check.
• Check that all tubing and wiring have been properly
connected.
• Check that the gas and liquid side service valves are
fully open.
1 Connect the power, press the ON/OFF button on the
remote control to turn the unit on.
2 Use the MODE button to select COOL, HEAT, AUTO
and FAN to check if all the functions work well.
3 When the ambient temperature is too low (lower than
17
O
C), the unit cannot be controlled by the remote
control to run at cooling mode, manual operation can
be taken. Manual operation is used only when the
remote control is disabled or maintenance necessary.
• Hold the panel sides and lift the panel up to an angle
until it remains fixed with a clicking sound.
• Press the Manual control button to select the AUTO
or COOL, the unit will operate under Forced AUTO or
COOL mode (see User Manual for details).4.
4 The test operation should last about 30 minutes.
Pump down
This is performed when the unit is to be relocated or
the refrigerant circuit is serviced. Pump Down means
collecting all refrigerant in the outdoor unit without loss
of refrigerant gas.
caution
Be sure to perform Pump Down procedure with the unit in
cooling mode.
Pump down procedure
1 Connect a low pressure gauge manifold hose to the
charge port on the gas side service valve.
2 Open the gas side service valve halfway and purge the
air from the manifold hose using the refrigerant gas.
3 Close the liquid side service valve (all the way in).
4 Turn on the unit's operating switch and start the cooling
operation.
5 When the low-pressure gauge reading becomes 1 to
0.5kg/cm
2
(100~50kPa), fully close the gas side valve
stem and then quickly turn off the unit.
At this time Pump Down has been completed and
all refrigerant gas will have been collected in the
outdoor unit.
Safety and leakage check
• Electrical safety check
Perform the electrical safety check after completing
installation:
1 Grounding work
After finishing grounding work, measure the grounding
resistance by visual detection and grounding resistance
tester.
2 Electrical leakage check (performing during test running)
During test operation after finishing installation, the
serviceman can use the electroprobe and multimeter to
perform the electrical leakage check. Turn off the unit
immediately if leakage happens. Check and find out the
solution ways till the unit operates properly.
• Gas leak check
1 Soap water method:
Apply a soap water or a liquid neutral detergent on
the indoor unit connection or outdoor unit connections
by a soft brush to check for leakage of the connecting
points of the piping. If bubbles come out, the pipes
have leakage.
2
Leak detector
Use the leak detector to check for leakage.
Note:Coolingtestmoderunningcanonlycontinuefor30
minutes. After this time it will automatically change into
AUTO mode with setting temperature at 24
O
C.Ifusing
theRemoteControlfortestrunning,setitinCOOL
mode (refer to the User Manual). The unit will not
change into AUTO mode automatically. If the ambient
temperature is too low, the unit cannot perform test
runningonCOOLmode.
Connection pipe
C Evaluation of performance
• Operate unit for a 15~20mins, then check the system
refrigerant charge:
1 Measure the pressure and the temperature of the gas
side service valve.
2 Measure the temperature of the intake and discharge
of air.
3 Ensure the difference between the intake temperature
and discharge is more than 8
O
C.
4 For reference; the gas side pressure of optimum
condition is as detailed (Cooling).
Outside ambient TEMP
The Pressure of the gas side
service valve
35
O
C(95
O
F)
4~5kg/cm
2
(400~490KPa)
Note: If the actual pressure is higher than shown,
the system is most likely overcharged, and charge
should be reduced.
If the actual pressure is lower than shown, the system
is most likely undercharged, and charge should
be added. The air conditioner is now ready for use.
1 Check that all tubing and wiring have been properly
connected.
2 Check that the gas and liquid side service valves are
fully open.
A Prepare remote control
Notes:
• Therearetwomethodstotesttheunitusingeitherthe
remote control or using the switch on the indoor unit.
• Itisrecommendedthatyoutesttheunitusingtheswitch
on the indoor unit.
To use the remote control for test running, operate as per
the following instruction to use the switch on the indoor unit
for test running, skip the following instructions and move to
item "C".
Prepare remote control
The remote control uses two alkaline dry cell batteries
(2xAAA 1.5Volt).
1 Slide the cover of the battery compartment (on the rear
of the remote control) off..
2 Insert new batteries, making sure that the (+) and (-)
of the battery are installed correctly. (refer to the user
manual).
3 Slide the battery compartment cover back on.
Notes:
• Alwaysuse2xAAA(1.5Volt)batteries.Donotuse
rechargeable batteries.
• Removethebatteriesfromtheremotecontrolifthe
system is not going to be used for a long period.
B Operating the unit with the switch on the indoor unit
1 Open and lift the front panel up until it remains fixed
with a clicking sound.
2 Press the AUTO/COOL button twice, the unit will work on
test mode for cooling.
Test running
Indoor unit
check point
D
B
C
A
Outdoor unit
check point
Co ver
Man ua l c ontrol
button
AUTO/COOL