APC SYMMETRA 990 Uživatelská příručka stáhnout pdf (Strana 25)

Maintenance – Parts Replacement

990-4147D-001 Symmetra PX 10-40 kW 400 V and 208 V Operation 19

How to replace the power modules

Warning: Only trained persons familiar with the construction and operation of the

equipment, as well as the electrical and mechanical hazards involved, may install and

remove system components.

Warning: Before removing any power modules, make sure that the remaining power

modules can support the load.

Heavy: Two people are required to lift components weighing 18-32 kg (40-70 lb).

Caution: Do not attempt to insert the power module using unnecessary force.

Caution: Tighten the spring-activated knobs before securing the locking latch to ensure that

the module makes proper contact in the unit. The power module will not operate unless the

locking latch is engaged.



Turn the locking latch to the left

until the arrow points down.



Unscrew the spring-activated

knobs on both sides of the

module.



Pull the module out of the

enclosure as far as the lock

mechanism will allow.



Release the lock by pressing the

black plastic tab on each side of

the module.



Pull the module out of the

enclosure.



Push the replacement module into

the system.



Tighten the spring-activated

knobs on each side of the module.



Secure locking latch to ensure

that the module makes proper

contact in the unit.









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