Engineered air EngA CU Series, Инструкция по установке, эксплуатации и обслуживанию

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A
CU MANUAL
IOM-14 35 of 46 Feb 06 R4
Caution: When recovering refrigerant from a system equipped with a water cooled condenser, the
water valve must be manually opened so water flows continuously through the condenser
while the refrigerant is being recovered. Failure to do so can cause the condenser to freeze,
which will permanently damage the condenser.
SHUTDOWN PROCEDURE
Warning:
Electrical shock or death can occur if instructions are not followed. This equipment
contains moving parts that can start unexpectedly. Injury or death could occur if
instructions are not followed. All work should be performed by a qualified technician.
Always disconnect power before servicing. DO NOT bypass any interlock or safety switches
under any circumstances.
1.
Temporary Shutdown
To shut the unit down for a short time (such as for inspection or service). Shut of the service switch
in the main control panel then turn off the main disconnect.
2.
Re-Startup after Temporary Shutdown
a) Turn on main disconnect for the unit.
b)
After the crankcase oil is warm again, turn on service switch.
3.
Extended Shutdown
Note: Leaving the main power on will keep the crankcase heaters energized and will not harm the
system.
4. Re-Start After Extended Shutdown
a) If the main power was off, re-connect main power and allow 24 hours for crankcase heaters to
work prior to start-up of compressors.
b)
If main power was left on, check to ensure the crankcase heaters are still operating. If not,
replace them and allow at least 24 hours before starting the compressor.
c)
Follow the steps in the initial start-up procedure.