Daikin AGZ030E, Инструкция по установке, эксплуатации и обслуживанию

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www.DaikinApplied.com 93 IOM 1206-7 • TRAILBLAZER
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MODEL AGZ CHILLERS
Table 86: Pumpdown and System Switch Positions
Switch
Switch Position
ON OFF
PS1, PS2,
Pumpdown Switches Circuits will operate
in the normal,
automatic mode Circuit will go
through the normal
pumpdown cycle and
shut off.
S1, System Switch Unit will operate in
the normal automatic
mode Unit will shut off
immediately without
pumping down
(emergency stop)
Post Startup
After the chiller has been operating for a period of time and has
become stable, check the following:
• Compressor oil level. (Some scroll compressors do not
have oil sight glasses).
• Refrigerant sight glass for flashing.
• Rotation of condenser fans.
• Complete the “Equipment Warranty Registration Form,”
found at the end of this manual, within 10 days of start-
up in order to comply with the terms of Daikin Limited
Product Warranty.
Shutdown
Temporary Shutdown
1. Put both circuit switches to the OFF position (Pumpdown
and Stop).
2. After compressors have stopped, put System Switch (S1)
to OFF (emergency stop).
3. Turn off chilled water pump. Chilled water pump to
operate while compressors are pumping down.
4. To start the chiller after a temporary shutdown, follow the
startup instructions.
Extended Shutdown
1. Front seat both condenser liquid line service valves.
2. Put both circuit switches to the OFF position (Pumpdown
and Stop position).
3. After the compressors have stopped, put System Switch
(S1) to the OFF position (emergency stop).
4. Front seat both refrigerant circuit discharge valves (if
applicable).
5. If chilled water system is not drained, maintain power to
the evaporator heater to prevent freezing. Maintain heat
tracing on the chilled water lines.
6. Drain evaporator and water piping to prevent freezing.
7. If electrical power to the unit is on, the compressor
crankcase heaters will keep the liquid refrigerant out of
the compressor oil. This will minimize startup time when
putting the unit back into service. The evaporator heater
will be able to function.
8. If electrical power is off, make provisions to power the
evaporator heater (if chilled water system is not drained
or is filled with suitable glycol). Tag all opened electrical
disconnect switches to warn against startup before the
refrigerant valves are in the correct operating position.
To start the chiller after an extended shutdown, follow the
prestartup and startup instructions.