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IOM_WPHBA-WPHA_091a1201_207954_180610_EN
COMPACT HORIZONTAL PACKAGED WATER-TO-AIR UNITS
WPHBA / WPHA
INSTALLATION
ELECTRICAL CONNECTIONS
Electrical connection of the hydraulic accessories for control with TH-TUNE and µPC
- Remember that at least one of
the security devices shall be
installed. Jumper connect the
terminals of the security device
that will not be used.
- It is not possible to select at the
same time the Shut Off solenoid
valve (Y3) and the Alarm.
OPERATION
BEFORE START UP
Start up has to be performed by a qualified service personnel in air conditioning.
Make sure that panels are firmly secured with screws.
Check that there is no leakage of oil or refrigerant.
Ensure that the unit is evenly levelled.
Check if there is enough space for operation and maintenance.
Before opening the electrical panel and having access to the inside of the machine it is MANDATORY to
disconnect the power supply hose of the machine which MUST BE FREE OF VOLTAGE for this operation.
Check that the drainage is not blocked.
Check if there are losses of water. Check that the valves work correctly.
Check the water circuit allows its emptying for repairs or stop and its correct air purge.
Control the drainage of the installation and the tubes of the differential switch (if installed).
Always use the electrical diagram of the unit to make the connections.
Make sure that all electrical connections are properly tight.
The power supply of the unit must be as indicated on the serial plate. Damage caused by the start-up of the unit
in an incorrect
voltage line is not covered by Hitecsa’s warranty.
The unit must not be supplied with any other voltage than that indicated on the serial plate. The power supply to
the unit must be within 10% of the voltage indicated on the serial plate.
Check the correct rotation direction of the fans.
The installer must place line protection elements in accordance with current legislation.
Wiring of electrical connections must be protected by a tube or other cable conduits.
Make sure if the crankcase heater of each compressor has been operating during 24 hours prior the Start Up.
Check that the air filters are clean and correctly fitted.
Check the condition and placement of grilles, diffusers, air ducts, tarpaulins, etc.
Содержание VERNE WPHA 091
Страница 54: ...Subject to modifications without prior notice...