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Documents & Manuals

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Tensioning Guide
Belt-diagram
C-120 pulleys
+ 13 more

Work Order Templates

Pre-built workflows to keep your asset running smoothly.

Daily Electrical System Inspection
Replace Roller and Pulley
Install Engine B-120
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Procedures

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Motion Industries
Applied Industrial Technologies
Electrical Brothers
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Parts

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Drive Motor
B2 Rollers
Tensioning System
+ 40 more

Comfort Star Indoor Unit CIP12CA(I)

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Maintenance Plans for Comfort Star Indoor Unit Model CIP12CA(I)

Integrate maintenance plans directly into your work orders in MaintainX.

Temperature Sensor Check

WARNING: Be sure to turn off all power supplies or disconnect all wires to avoid electric shock. Operate after compressor and coil have returned to normal temperature in case of injury.

Temperature sensor disconnected from PCB

Resistance value of the sensor

Upload a picture of the temperature sensor resistance value table

Note: The picture and the value are only for reference, actual condition and specific value may vary.

Sign off on the temperature sensor check

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IPM Check

WARNING: Electricity remains in capacitors even when the power supply is off. Ensure the capacitors are fully discharged before troubleshooting.

Outdoor unit turned off and power supply disconnected

Electrolytic capacitors discharged and all energy-storage unit has been discharged

Outdoor PCB or IPM board disassembled

Resistance value between P and U

Resistance value between P and V

Resistance value between P and W

Resistance value between P and N

Resistance value between U and N

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Refrigerant Change

Close both 2- and 3-way valves.

Slightly connect the Handle Lo charge hose to the 3-way service port.

Connect the charge hose to the valve at the bottom of the cylinder.

Is the refrigerant R410A/R32?

Open the valve at the bottom of the cylinder for 5 seconds to purge the air in the charge hose, then fully tighten the charge hose with push pin Handle Lo to the service port of 3-way valve.

Place the charging cylinder onto an electronic scale and record the starting weight.

Fully open the Handle Lo manifold valve, 2- and 3-way valves.

Operate the air conditioner in cooling mode to charge the system with liquid refrigerant.

When the electronic scale displays the correct weight (refer to the gauge and the pressure of the low side to confirm, the value of pressure refers to chapter Appendix), turn off the air conditioner, then disconnect the charge hose from the 3-way service port immediately.

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Initial Air Conditioner Check

Warning: This procedure requires trained personnel with PPE!

Tighten the flare nuts of the indoor and outdoor units, and confirm that both the 2- and 3-way valves are closed.

Connect the charge hose with the push pin of Handle Lo to the gas service port of the 3-way valve.

Connect another charge hose to the vacuum pump.

Fully open the Handle Lo manifold valve.

Using the vacuum pump, evacuate the system for 30 minutes.

Check whether the compound meter indicates -0.1 MPa (14.5 Psi).

If the meter does not indicate -0.1 MPa (14.5 Psi) after 30 minutes, continue evacuating for an additional 20 minutes.

If the pressure does not achieve -0.1 MPa (14.5 Psi) after 50 minutes, check for leakage.

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