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SM-18001-rev.1
3-51
TROUBLESHOOTING
3.4.2 Test Run from Outdoor Unit Side
Refer to the Service Manual for Outdoor Unit.
3.4.3 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
2
).
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%
Operating Voltage (V
3
): Rated Voltage < +10%
• Starting Voltage (V
2
): Rated Voltage > -15%
Voltage Imbalance between Phase: < 3%
(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.
Refrigerant
Operation Pressure
R410A
601 psi (4.15MPa)
Initial Voltage
< Voltage Change >
(V
1
)
Starting Voltage
(V
2
)
Operating Voltage
(V
3
)
Cover the air inlet of outdoor unit
during cooling operation.
Cover the air inlet of indoor unit
during heating operation.
Содержание CIDH018B21S
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Страница 10: ...viii SM 18001 rev 1...
Страница 15: ...SM 18001 rev 1 1 1 INSTALLATION 1 Installation...
Страница 19: ...SM 18001 rev 1 2 1 OPERATION 2 Operation...
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Страница 23: ...SM 18001 rev 1 3 1 TROUBLESHOOTING 3 Troubleshooting...
Страница 75: ...MAINTENANCE SM 18001 rev 1 4 1 4 Maintenance...
Страница 76: ...MAINTENANCE 4 2 SM 18001 rev 1 4 1 Maintenance of Outdoor Unit Refer to the Service Manual for Outdoor Unit...
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Страница 131: ...SM 18001 rev 1 5 1 EXTERNAL INPUT OUTPUT AND FUNCTION SETTING 5 External Input Output and Function Setting...
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Страница 173: ...SM 18001 rev 1 6 1 FIELD WORK INSTRUCTIONS 6 Field Work Instructions...
Страница 182: ...6 10 SM 18001 rev 1 FIELD WORK INSTRUCTIONS 6 8 Mollier Chart for R410A f t 3 l b...
Страница 183: ...SERVICE PARTS LIST SM 18001 rev 1 7 1 7 Service Parts List...
Страница 184: ...SERVICE PARTS LIST 7 2 SM 18001 rev 1 Refer to the Service Parts List for Ducted High Static Medium Static and Slim...
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Страница 186: ...2018 Johnson Controls Inc SM 18001 rev 1 Code No LIT 12013047 Revised February 2019...