Therma-Stor Quest 185 Cool, Инструкция по установке, эксплуатации и обслуживанию

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Quest 185 Cool Installation, Operation and Maintenance Instructions
16
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Manifold Gage Set
When checking the system charge, use a manifold gage set that features low loss anti-blow back fittings.
Manifold gage set used with HFC-410A refrigerant systems must be capable of handling the higher system
operating pressures. The gages should be rated for use with high side operating pressures of 0 – 800 psig and low side operating
pressures of 30 inches of vacuum to 250 psig. Dampened gages or anti-flutter gages are recommended. Gage hoses must be
rated for use at up to 800 psig of pressure with a 4000 psig burst rating.
Leak Test Line Set and Dehumidifier
CAUTION!
THE ENVIRONMENTAL PROTECTION AGENCY (EPA) PROHIBITS THE INTENTIONAL VENTING OF
HFC REFRIGERANTS DURING MAINTENANCE, SERVICE, REPAIR AND DISPOSAL OF APPLIANCE.
APPROVED METHODS OF RECOVERY, RECYCLING OR RECLAIMING MUST BE FOLLOWED.
WARNING!
WHEN USING A HIGH PRESSURE GAS SUCH AS DRY NITROGEN TO PRESSURIZE A REFRIGERATION
OR AIR CONDITIONING SYSTEM, USE A REGULATOR THAT CAN CONTROL THE PRESSURE DOWN
TO 1 OR 2 PSIG.
WARNING!
REFRIGERANT CAN BE HARMFUL IF IT IS INHALED. REFRIGERANT MUST BE USED AND RECOVERED
RESPONSIBLY. FAILURE TO FOLLOW THIS WARNING MAY RESULT IN PERSONAL INJURY OR DEATH.
CAUTION!
LEAK DETECTOR MUST BE CAPABLE OF SENSING HFC REFRIGERANT.
1. Connect the HFC-410A manifold gage set high pressure hose to the
service port on the suction gas line.
Note:
Connecting the high pressure hose to the service port on the gas line
will protect the manifold gage set from high pressure damage during
leak testing. Cap liquid line service port.
2. Make sure all of the valves on the manifold gage set are closed.
Connect a cylinder of HFC-410A refrigerant to the center port of
the manifold gage set.
3. Position the HFC410A refrigerant cylinder to deliver vapor only.
Open the valve on the HFC-410A refrigerant cylinder.
4. Open the high pressure side of the manifold gage set to
allow HFC-410A into the line set and dehumidifier. Weigh in a trace
amount of HFC-410A [A trace amount is a maximum of two ounces
(57g) of refrigerant or 3 PSI]. Close the valve on the HFC-410A
cylinder and the valve on the high pressure side of the manifold gage set.
5. Disconnect the HFC-410A refrigerant cylinder from the manifold gage set.
6. Connect a cylinder of dry nitrogen with a pressure regulating valve to the center port of the manifold gage set.
7. Adjust the dry nitrogen pressure regulator to 150 psig. Open the valve on the high pressure side of the manifold gage set to pressurize
the line set and dehumidifier.
8. Close the valve on the dry nitrogen cylinder. Close the valve on the high pressure side of the manifold gage set.
9. Allow the system to rest for a few minutes.
10. Check all (brazed and threaded) joints for leaks using a leak detector designed to sense HFC refrigerants.
11. After leak testing is complete, disconnect the dry nitrogen cylinder from the center port of the manifold gage set and disconnect the
high pressure hose of the manifold gage set from the suction gas line service port.
LOW HIGH
MANIFOLD GAUGE SET
NITROGEN
HFC-410A
TO VAPOR
SERVICE
VALVE
OUTDOOR UNIT
LINE SET INSTALLATION