Trane CVGF1000, Инструкция по установке, эксплуатации и обслуживанию

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Hazardous Voltage!
Disconnect all electric power, including remote disconnects before servicing. Follow
proper lockout/tagout procedures to ensure the power can not be inadvertently en-
ergized. Failure to disconnect power before servicing could result in death or serious
injury.
Evacuation and Dehydration
1. Disconnect ALL power while evacuating the system.
2. Connect the vacuum pump to the 5/8” flare connection on the bottom of the evap-
orator.
3. Remove all of the moisture from the system to insure a leak free unit. Pull the sys-
tem down below 500 microns (0.5 mm Hg).
4. After the unit is evacuated, perform a standing rise test for at least an hour. This
vacuum should not rise more than 100 microns (0.1 mm Hg) per hour to a maxi-
mum of 500 microns (0.5 mm Hg) over 12 hours. If the vacuum rises above this,
either there is a leak or the unit has moisture present.
Note: If oil is in the system, this test is more difficult. The oil is aromatic and will give
off vapors that will raise the pressure of the system. Check for oil temperature >122°F
(50°C).
Refrigerant Charging
Once the system is leak and moisture free, use the 5/8” flare connections at the bot-
tom of the evaporator and side of condenser to add refrigerant charge. See Unit
Nameplate for correct refrigerant charge amounts.
Add the refrigerant charge as a vapor until the system pressure is above 29.4 psi (203
kPa) or Temperature is above 34°F (1°C). Liquid refrigerant may be added once these
conditions are achieved.
CAUTION
Possible Freeze-up
Water can freeze during charging. Circulate water during charging to prevent freezing.
Caution
Charge vapor in the unit until:
•
System pressure is above 29.4 psig (203 kPa )
•
The saturation temperature of R134a is above 34°F (1°C)
CVGF-SVX03B-EN
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Periodic Maintenance