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AA Inspection & test operation
Precautions before test operation
• When the outdoor temperature is low, turn on the main power 6 hours before beginning the operation.
Caution
-
If you start the operation immediately after turning on the main power, it may cause serious damage to the
part within the product.
• Do not touch the refrigerant pipe during or right after the operation.
-
Refrigerant pipe may be hot or cold during or right after the operation depending on the status of the
refrigerant which flows through the refrigerant pipe, compressor and other parts of the refrigerant cycle.
• Do not operate the product with its panel or protection nets off.
-
There is risk of personal injury from the parts that rotates, heated or with the high voltage.
• Do not turn off the main power immediately after stopping the operation.
-
Wait for at least 5 minutes before turning off the main power. If not, water leakage or other problems may
occur.
Checklist before auto trial operation
1. Check the power cable and communication cable of the indoor and outdoor unit.
2. Supply power to the outdoor unit 6 hours before trial operation to pre-heat the crank case heater.
3. Before supplying the power, use a voltmeter and phase tester to check the voltage and the phase.
-
R, S, T, N terminal: check if the voltage is within 380 -415 V between wires (R-S, S-T, T-R) and 200-240 V between phases
(R-N, S-N, T-N).
4. When the power is supplied, outdoor unit will execute tracking to check the indoor unit connection and other optional
functions.
5. Write down the installation report on the service history report paper attached on the front part of the control box.
• Supply power to the outdoor unit 6 hours before auto trial operation to pre-heat the crank case heater.
Caution
6. Guaranteed range of auto trial operation
For precise judgment, you must perform auto trial operation in below indoor/outdoor temperature condition.
50
40
30
20
10
0
-10
-20
5
10
15
Indoor temperature (
-
In Auto trial operation, product will automatically select either cooling or heating mode and operate in selected mode.
-
AM***FXM**C (Cooling Only) models operate only cooling mode in Auto trial operation.
(Cooling only models don't operate Auto trial operation in case of outdoor temperature below -5
°
temperature below 5
C)
-
In the temperature range marked with slashed pattern, system protection control may trigger during operation.(If the
system protection control is enabled, it can be hard to get the precise judgment after the auto trial operation.)
-
When the temperature is outside of guaranteed range, accuracy of judgment on auto trial operation may decrease
near boarder line area.
20
25
30
35
40
45
°
C)
Cooling
Heating
°
C or indoor
59
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