Re-Installation; Indoor Unit - Century COMFORT-AIRE VMH-SG Series Service Manual

Service Manual - VMHxxSG

3. Re-Installation

3.1

Indoor Unit

Collecting the refrigerant into the outdoor unit
Procedure:
1.
Confirm that the 2- and 3-way valves are opened.
2. Connect the charge hose with the push pin of Handle
Lo to the 3-way valve's gas service port.
3. Open the Handle Lo manifold valve to purge air
from the charge hose for 5 seconds and then close it
quickly.
4.
Close the 2-way valve.
5. Operate the air conditioner in cooling mode. Cease
operations when the gauge reaches 0.1 MPa (14.5
Psi).
6.
Close the 3-way valve so that the gauge rests
between 0.3 MPa (43.5 Psi) and 0.5 MPa (72.5 Psi).
7. Disconnect the charge set and mount the caps of
service port and 2- and 3-way valves.
8. Use a torque wrench to tighten the caps to a torque
of 18 N.m.
9.
Check for gas leakage.
Maintenance 5
 
Maintenance 5