17
Pre-operation checks
Checks before initial start-up
SWITCH OFF THE POWER SUPPLY BEFORE MAKING ANY CONNECTIONS.
After the installation of the unit, check the following before switching on the circuit breaker:
1.
Field wiring
Make sure that the field wiring between the local supply panel and domestic hot water tank has been carried
out according to the instructions, according to the wiring diagrams and according to European and national
regulations.
2.
Fuses or protection devices
Check that the fuses or the locally installed protection devices are of the size and type specified. Make sure that
neither a fuse nor a protection device has been by-passed.
3.
Earth wiring
Make sure that the earth wires have been connected properly and that the earth terminals are tightened.
4.
Internal wiring
Visually check the switch box on loose connections or damaged electrical components.
5.
Fixation
Check that the unit is properly fixed, to avoid abnormal noises and vibrations when starting up the unit.
6.
Damaged equipment
Check the inside of the unit on damaged components or squeezed pipes.
7.
Refrigerant leakage
Check the inside of the unit on refrigerant leakage. If there is a refrigerant leak, call your local dealer.
8.
Power supply voltage
Check the power supply voltage on the local supply panel. The voltage must correspond to the voltage on the
identification label of the unit.
9.
Water flow switch should be installed for the place where there is no constant sufficient water flow (Field supply)
10.
Stop valves
Make sure that the stop valves are correctly installed and fully open.
OPERATING THE SYSTEM WITH CLOSED VALVES WILL DAMAGE THE PUMP!
MAINTENANCE
To ensure optimal availability of the unit, a number of checks and inspections on the unit and the field wiring must
be carried out at regular intervals.
BEFORE CARRYING OUT ANY MAINTENANCE OR REPAIR ACTIVITY, ALWAYS SWITCH ‘OFF’ THE CIRCUIT
BREAKER ON THE SUPPLY PANEL, REMOVE THE FUSES OR OPEN THE PROTECTION DEVICES OF THE UNIT.
MAKE SURE THAT BEFORE STARTING ANY MAINTENANCE OR REPAIR ACTIVITIES THE POWER SUPPLY TO
THE OUTDOOR UNIT IS SWITCHED ‘OFF’.
