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INSTALLATION GUIDELINES
POSITIONING
- Strictly comply with the clearance areas indicated in the catalogue.
- Make sure that there are no obstructions near the finned coil suction or the fan air discharge.
- Place the unit in a manner that assures the lowest environmental impact
(noise, integration with nearby structures, etc.).
WIRING
- Always consult the enclosed wiring diagram, which provides all the instructions required for
making the electrical connections.
- Power up the unit (closing the disconnect switch), at least 12 hours before start-up, in order to turn
the crankcase heaters on. Do not switch the power off during short stoppages.
- Before turning on the disconnect switch, stop the unit by turning off all the operating switches or
using the remote control.
- Before accessing the inner components, cut the power off by turning on the disconnect switch.
- The power supply must be fitted with all protections according to the standards in force.
- Electrical connections: three-pole power cable + earth, or three pole cable + neutral + earth;
external interlock; remote alarm signaling.
HYDRAULIC CONNECTIONS
-
Carefully vent the hydraulic system with the pump switched off, by turning the air valve. This
procedure is particularly important, as even small air bubbles may cause the evaporator to freeze.
-
Drain the system during winter stops or use special anti-freeze solutions.
During short stops, it is advisable to install an electric heater (defroster) on the evaporator and the
hydraulic circuit.
- Install the hydraulic circuit with all the components shown in the diagrams (expansion vessel, flow
switch, storage tank, air valve, shut-off valves, flexible connections etc. Please refer to the user,
installation and maintenance manual).
- Connect the flow switch when supplied in the kit, following carefully the instructions provided with
the units.
START-UP AND MAINTENANCE
- Strictly follow the instructions given in the use and maintenance manual.
These operations must be carried out by qualified personnel only.
Western Airconditioning B.V. reserves the right to alter specifications
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