Commissioning
21.10.2015
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Copyright
2014 by: WATERKOTTE GmbH. Subject to changes.
10
Commissioning
During commissioning of machine, anticipate the following specific risks.
Risk of total loss!
Faulty connections can cause unexpected startup of machine / uncon-
trolled machine operation.
Mix up of connections causes motor to run in wrong direction; this could
damage the machine.
Incorrectly wired connections can destroy electrical / electronic compo-
nents.
Electrostatic processes / power failure can pose a risk for electronic com-
ponents and also result in software errors.
To avoid damage to machine / injuries during commissioning of machine,
the following points must be observed:
Commissioning of machine shall only be performed by qualified persons, in
compliance with safety instructions.
Activate all safety devices and emergency-stop switches prior to commis-
sioning.
Check motor for correct direction of rotation prior to commissioning.
Also read chapter 1.2.
10.1
Pre-startup checks
Before starting machine, check first the requirements according to the fol-
lowing checklist.
All electrical feed lines in the corresponding cross-sections are wired to
the terminals, as per connection plan. The BUS cable is shielded.
The main switch is in "OFF" position.
The fuses in the fuse box are in compliance with the specifications in
the wiring diagram (circuit breaker, switch, type C for compressor feed
line!).
The hydraulic connections for heat source, space heating and domes-
tic water are connected.
The ball shut-off valves on the refrigerant lines are open.
The following positions must also be checked.
The gas stop valve as well as the liquid stop valve are fully open.
Before operation, check if all plates, fuses and other protective devices
are properly installed. Components that are rotating, hot / under high
voltage can cause injuries.
Do not touch switch with wet hands. This poses a risk of electric shock.
The module must be grounded. Do not connect the ground wire to gas /
water lines, lightning rods / telephone grounding lines. Improperly
grounded module poses a risk of electric shock.
Use circuit breakers (ground fault interrupter, isolating switch (+B fuse),
and moulded case circuit breaker) with the specified capacity. Failure of
