APC INROOM ACPSC3000 Provozní pokyny stáhnout pdf (Strana 76)

InRoom CW/DX – Operating Instructions76

10. Maintenance

10.1 Safety instructions

All maintenance work is to be carried out under strict compliance with the country-speciﬁ c accident prevention

regulations, especially the accident prevention regulations for electrical installations, refrigerating machines

and equipment. Non-compliance with the safety instructions can endanger people and the environment.

Maintenance work is only to be carried out on the units by authorized and qualiﬁ ed specialist staff.

Electrical Hazard

Unless otherwise indicated, remove power before attempting to service this unit. Remove power

at the upstream breaker and disconnect the power cords before servicing. Failure to do so could

result in serious injury or death.

The service personnel must verify that all power has been disconnected before servicing the

unit.

Some veriﬁ cations must be effected with the unit in operation (measuring the current, pressures

and temperatures). In such a case the unit must only be switched on at the master switch after all

mechanical connections have been carried out. The unit must be switched off immediately after

the measuring procedure.

The switch on the front panel does not disconnect all power from the unit. There will still

be voltage present on the main contactors. Wait 5 minutes after shutting off power to the

unit before opening the panels. Capacitance on the fan terminals may hold a hazardous

charge. Avoid contact with the electronics housing as it may be hot immediately after

shutting off the unit.

Warning

Risk of injury. The fans may continue to run after the unit is stopped.

Component Maintenance interval

monthly quarterly half-yearly yearly

Refrigerant circuit

Refrigerant charge x

HP/LP switch x

Sight glass x

Compressor x

Expansion valve x

Air circuit

Heat exchanger x

Fan x

Air ﬁ lter x

Water circuit

Tightness x

Condenser x

Other unit components

Electrics x

Mechanics x

10.2 Maintenance intervals

1 2 ... 71 72 73 74 75 76 77 78 79 80

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