Unical HP OWER 320RK, Руководство пользователя и инсталлятора

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6. ACCESSORIES
Description Accessory Standard Factory fitted
Supplied loose/
activable after
delivery
Electronic expansion valve x x
Electronic circulator x x
Water-side safety valve x x
Flow switch (indication of flow presence) x x
Domestic hot water storage probe / Remote probe x x
Finned battery protection grids x x
Rubber vibratio dampers x x
KA - Heat exchanger and crankcase heaters
x
x
Dry contact on/off remote x x
Dynamic set point x x
Digital input for double set-point x x
GI module including:
- Plant season signalling
- Compressor ON/OFF signalling
- General alarm/machine block signalling
- Defrosting signalling
x x
Three-phase relays for sequence/shortage monitoring x x
General circuit breaker x x
Conectivity BMS - protocollo ModBus included (CM)
x
x
Fan silent mode x x
7. STARTUP
Before start-up:
1.
Check that the diagrams and manuals of the installed machine are available.
2.
Check that the wiring and plumbing diagrams of the plant the machine is connected to are available.
3. Check that the shut-off valves of the water circuits are open.
4.
Check that the water circuit was filled under pressure and the air vented.
5.
Check that all the plumbing connections are installed correctly and that all the indications on the rating plates are complied with.
6. Make sure that measures have been taken to discharge condensate.
7.
Check the electrical connection and correct fastening of all the terminals.
8.
Check that the electrical connections have been made according to standards in force, including earthing..
9. Voltage must match that on the unit’s rating plate.
10. Make sure that the electric voltage is within the tolerance limits (±5%).
11. Check that the electric heaters of the compressors are properly powered.
12. Check that there are no gas leaks.
13. Before switching the unit on, check that all panels are positioned correctly and well-fixed with screws.
CAUTION: The unit must be connected to the electric mains and placed in STANDBY (powered on) by closing the master
switch at least 12 hours before start-up. This will allow the heaters to adequately warm up the compressor crankcase (the
heaters are powered automatically when the switch is closed). The heaters are working properly if after a few minutes the
temperature of the compressor crankcase is 10-15°C higher than ambient temperature.
CAUTION: check that the weight of the pipes does not bear upon the machine structure.
CAUTION: Never use the master switch to stop the unit temporarily. This must only be done to disconnect the unit from the
power supply for long downtimes (e.g. seasonal stops etc.). Furthermore power is missing, the crankcase heaters will not be
powered with the risk of breaking the compressors when the unit is switched on.
CAUTION: Do not modify the electrical connections of the unit so as not to immediately terminate the warranty.
CAUTION: Summer/winter operation must be selected at the start of the relative season. Frequent and sudden changes of
this operation must be avoided so as not to damage the compressors.
CAUTION: Upon initial installation and start-up, make sure that the machine works properly both in heating and cooling
mode.