E-
29
ENGLISH
If both sides numbers are equal, your computer will perform the next
stage.
6
Check the thermistor sensor, electronic expansion valve by using the
computer.
7
Open the service valve, then press the test operation KEY on the outdoor
unit PCB.
8
Check the pressure switch by a manifold gauge.
- Refer to the pressure table classified by outdoor temperature and
length of piping.
- The pressure is variable at the beginning of compressor operation.
Thus, check the pressure valve after 20 minutes at least.
- If there is an unusual noise and no change of pressure, you have to
check the compressor power(L1, L2 and L3) and wire connection.
9
Check that there is any error mode in the outdoor unit PCB during the test.
- You should test operations for 2 hours or more.
- Check that the water dripping from the drain hose runs away correctly
and safely.
11
To finish the test, press the test operation KEY again.
12
After finishing the test, operate only one indoor unit in the cool mode for
30 minutes.
- Check the temperature of the other indoor units and leakage of electronic
expansion valve. If there is no matter, turn the indoor unit off, then
operate another indoor unit to check the previous indoor unit.
13
Check these elements by using the computer.
10-1 Check each indoor unit temperature, RPM, capacity code,
and open degree of electronic expansion valve.
10-2 Check the temperature of compressor and condenser,
and outdoor unit fan operation.
10
◆
If 'E2' is displayed on the outdoor unit PCB at this time, you
must check that you registered the number of indoor units
and assigned addresses correctly. Then restart the tracking
by pressing the key 3 in the outdoor unit.
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Summary of Contents for RVMH050CBM0
Page 35: ...Memo E 35 ENGLISH...
