Checking The Test Run - York IDM030B21E Series Service Manual

3.4.2 Checking the Test Run

(1) Indoor and Outdoor Fan
Check that the indoor fan and outdoor fan rotate correctly and the airflow is smooth.
(2) Power Supply Voltage
Check the power supply.
If the power supply is abnormal, contact the electric
power company.
Usually, voltage drop will occur when starting the
operation as shown in the figure (V
In order to protect the device, comply with the following
normal range of the power supply voltage.
<Normal Range of Power Supply Voltage>
• Supply Voltage: Rated Voltage < +10%
• Starting Voltage (V
(3) Normal Operating Pressure
Normal operating suction pressure is 29 to 159.5 psi (0.2 to 1.1 MPa) and normal operating discharge
pressure is 145 to 507.6 psi (1.0 to 3.5 MPa) when the refrigerant charge quantity is correct. Check
the operation pressure in the test run mode.
(4) High Pressure Switch
Check the operation pressure of the high pressure switch in the table below.
(5) High Pressure Increase Retry (Protection Control)
(a) High pressure will increase when one of the following procedures is performed.
Cover the air inlet of outdoor unit
during cooling operation.
(b) When the high pressure retry control is activated, alarm code "
display of the outdoor unit PCB. If the high pressure retry control occurs three times or more within
30 minutes, alarm code "
of the outdoor unit PCB.
For CIW01
Alarm Code:
MODEL : F .02
I.U. : RCI-3.0FSN3
IDU : ******
ODU : ******
O.U. : RAS-3HVRNM2
Sel. OP MODE
NOTE:
High pressure may not increase until the high pressure switch is activated because of the
temperature condition.
SM-16005-rev.2
).
2
): Rated Voltage > -15%
2
Refrigerant
R410A
" is indicated on the LCD of the wired controller or the 7-segment display
01-02
22
Chek
AlarmRst
Address
OK Entr
< Voltage Change >
Initial Voltage
(V )
1
Operating Voltage (V ): Rated Voltage < +10%
3
Voltage Imbalance between Phase: < 3%
Operation Pressure
601 psi (4.15MPa)
Cover the air inlet of indoor unit
during heating operation.
" is indicated on the 7-segment
TROUBLESHOOTING
Operating Voltage
(V )
3
Starting Voltage
(V )
2
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