Start-up
05.06.2015
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Copyright
2013 by: WATERKOTTE GmbH. Subject to changes.
Do not touch switch with wet hands. This poses a risk of electric
shock.
The unit must be grounded. Do not connect the ground wire to gas or
water lines, lightning rods or telephone grounding lines. Improperly
grounded unit 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
unit or fire may result from circuit breaker when capacity exceeds
specifications.
Do not touch refrigerant tubes with bare hands during operation. The
refrigerant tubes are hot or cold, depending on condition of flowing re-
frigerant. Contact with tubes poses a risk of burns or frostbite.
Turn on main power switch more than 12 hours before starting operation.
Starting operation directly after turning on power switch can cause severe
damage to internal parts. Keep main power switch on during period of op-
eration.
After stopping operation, wait at least five minutes before turning main
power switch off. Otherwise, there is a risk of water leaks or unit failure.
Risk of total loss!
Repeated restart of heat pump can result in total loss!
In case of heat pump failure, an inspection by qualified and authorised per-
sonnel must be performed before restart.
Info: Controller settings must only be performed during initial startup of ma-
chine.
This is not required for restart, since the settings have been saved (settings
remain saved even in case of power failure).
Info: During initial start-up, the specified limits are often exceeded, thus
numerous warning messages could appear.
For this reason, the warning messages occurring during this period can be
disabled by service personnel, see
Operating manual for heat pump con-
troller
.
After completing installation and wiring and tubing of indoor and outdoor
units, check for refrigerant leaks, loose power supply or control wiring,
wrong polarity, and no disconnection of one phase in the supply.
Use a 500 volt megohmmeter to check and ensure that resistance between
the power supply terminals and ground is at least 1.0 MΩ.
Do not perform this test on the control wiring terminals (low voltage circuit).
Risk of total loss!
Do not start unit if insulation resistance is below 1.0 MΩ.