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HVAC
(f) Manifold gauge will show following readings in case of excessive refrigerant or insufficient con-
denser cooling:
Troubleshooting chart for above condition:
Symptom
Problem
Cause / Reason
Remedy
Insufficient cooling
1. Pressure is high on
Excessive refrigerant
1. Check refrigerant
both low pressure and in the system
quantity
high pressure side
2. Slowly vent out
refrigerant if over charged
3. Blockage in refrigerant
circuit
(g) Manifold gauge will show following readings if air enters in the system:
Troubleshooting chart for above condition:
Symptom
Problem
Cause / Reason
Remedy
Insufficient cooling, low 1. Pressure is high on both Air has entered
Recover refrigerant,
pressure side piping is
low pressure and high refrigerant system evacuate air and charge
not cold even when
pressure side
purified refrigerant.
touched and bubbles
Check condenser cartridge.
observed in sight glass