Installation of the block of manometers
1. Attach charging hoses to gauge block. Tighten the nuts by hand.
2. Attach the quick-release adapter to the charging hoses. Tighten the nuts by hand.
3. Close the gauge block valves.
4. Remove the plugs from the cooling line service valves.
5. Attach the quick-release adapter to the service valves.
6. Connect the block of manometers to central air.
7. Discharge the system.
A) Turn on the air conditioner.
b) The engine runs at 1000 rpm for 5-6 minutes.
V) Stop the engine.
G) Open both gauge block valves.
d) Press the valve core located on the side of the gauge block and release the refrigerant from the air conditioning system.
Vacuum system
1. Install the gauge block.
A) Install the adapter on the vacuum pump.
b) Connect the center hose of the gauge block to the vacuum pump adapter.
V) Open both gauge block valves and turn on the vacuum pump.
G) After at least 10 minutes, check that the low pressure gauge shows 100 kPa or more.
Note: If the pressure is 100 kPa or more, close both valves of the gauge box and turn off the vacuum pump.
Check the system for leaks and troubleshoot.
d) Close both gauge block valves and turn off the vacuum pump.
e) Leave the system in this state for at least 5 minutes, check that the instrument readings do not change.