Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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High Pressure Safety Valve HVAC: Service and Repair

REMOVAL
1. Recover the refrigerant using Refrigerant Recovery System.
2. Remove old pressure relief valve.

INSTALLATION
1. Clean valve seat area on rear head.
2. Lubricate O-ring of new pressure relief valve and O-ring assembly with new 525 viscosity refrigerant oil. Install new valve and torque in place, 9.0 Nm (6.1 ft lb)
3. Evacuate and recharge the system.
4. Leak test system.