TM9-4120-400-14
D A N G E R O U S CHEMICAL REFRIGERANT UNDER PRESSURE
is used in the operation of this equipment.
Use great care to avoid contact with liquid refrigerant or inhaling refrigerant gas being
discharged from any container under pressure. Sudden and irreversible tissue damage
can result from freezing. Wear thermal protective gloves and a face protector or safety
glasses in any situation where skin or eye contact is possible.
Prevent contact of refrigerant gas with flame or hot surfaces. Heat causes the refrigerant
to break down and form carbonyl chloride (phosgene), a highly toxic and corrosive gas.
INSTALLATION
1. Remove four screws (1) and access panel (2).
2. Check that HIGH and LOW PRESSURE CHARGING VALVES are closed.
3. Remove protective caps from HIGH and LOW PRESSURE CHARGING VALVES.
4. Connect the red (pressure gauge) hose to HIGH PRESSURE CHARGING VALVE and the blue (compound
gauge) hose to LOW PRESSURE CHARGING VALVE.
5. Check that all four service manifold valves are closed.
6. Open HIGH and LOW PRESSURE CHARGING VALVES.
7. Loosen the red (pressure gauge) hose at service manifold and allow refrigerant to purge for 3-5 seconds.
Tighten hose.
8. Loosen the blue (compound gauge) hose at service manifold and allow refrigerant to purge for 3-5 seconds.
Tighten hose.
REMOVAL
1. Check that unit HIGH and LOW PRESSURE CHARGING VALVES are closed.
2. Open all four service manifold valves to bleed off pressure.
3. Remove hoses from HIGH and LOW PRESSURE CHARGING VALVES.
4. Close service manifold valves.
5. Install protective caps onto HIGH and LOW PRESSURE CHARGING VALVES.
6. Install access panel (2) and secure with four screws (1).
NOTE
FOLLOW-ON MAINTENANCE:
Connect power at power source.
5-25