Carrier X-POWER Series Service Manual page 89

Carrier service manual
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Electric engineering
(signal cable, power cable)
Basement work for outdoor unit
space
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Installing outdoor unit
space
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Air tightness test
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Vacuum drying
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recharging refrigerant
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Installing decorative panel
Test Running and commissioning
Delivering operation instructions
user
Note: The general procedure for refrigerant machine is subject to change according to the situation
1.2.3 Install indoor unit's procedure
Confirm installation position
Note:
1. The hook must strong enough to sustain the weight of indoor unit.
2. Check the models of indoor units before installation.
3. Pay attention to the main devices, such as the pipeline.
4. Hold enough places for maintenance.
1.2.4 Refrigerant pipe procedure
Install indoor units
Temporary pipeline
1.2.5 Drainage pipe procedure
Install indoor units
Drainpipe heat-insulation and test-run
Installation
Select proper power cables
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(Signal cable should use 3-cores shielded wires)
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Avoid short-circuit ventilation and ensure sufficient maintenance
Avoid short-circuit ventilation and ensure sufficient maintenance
Check whether the air pressure remains at 4.0Mpa (R410a) after
correction is made within 24 hours
Use vacuum pump that has a vacuum degree of less than -775mmHg
Record the amount of refrigerant to be recharged on the outdoor
unit and document it
Ensure no gap between decorative panel and ceiling
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Run the indoor units one by one to check whether any pipe or cable
is incorrectly installed
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Deliver related materials while providing operation instruction to the
Label installation position
Install pipe
Flush
Connect drainpipe
Install hooks
Weld
Pressure test
Check water leakage
R410a DC Inverter 60Hz
Install indoor units
Add Nitrogen
Vacuum dry
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