Rinnai A20, Руководство по установке

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Rinnai 18 Evap AC IM
IMPORTANT
Switch OFF the power and unplug the Cooler before touching any wiring. Care MUST BE taken
to ensure electrical components have been isolated before performing any service work, i.e.
water inlet valve, Servo Seal motor. Only an electrically qualified technician should carry out any
service to electrical wiring.
10.1 ISOLATING SWITCH
The Rinnai A Series and Rinnai C Series both have an external power-isolating switch to facilitate servicing.
The switch is located under the front left hand side of the cooler. To access the switch, reach under the front of the
Cooler’s trough and locate the switch. By observing the LED light on the control box you can ascertain whether the
power is on or off. Always test for electrical voltage before commencing any work on the cooler.
10.2 CHECKLIST
•
The ServoSeal damper is not catching and opens fully (Rinnai C Series Models only).
•
The isolating valve on the water supply is turned ON.
•
The water tank fills with water and the water inlet valve closes when the tank is full.
•
There is no foreign matter in the water tank or fan housing.
•
The pads are correctly located.
•
The pump operates when turned ON at the Wall Control.
•
The fan operates through the entire speed range.
•
For even water distribution with the pads in position and the Cooler in operation.
•
The water drains completely from the tank and that any external drain piping is not blocked or restricted.
•
That the optional dump valve functions correctly by isolating the power to the unit and ensuring that the tank
drains completely.
NOTE
New cooling pads should be thoroughly flushed before use so, following commissioning, run
the pump for 30 minutes without the fan, and then drain the tank fully. This will prime the pads,
flush out some of the new pad odour, and remove any foreign matter that may have settled in the
system during transport.
10.3 WHAT IF THE FAN MOTOR WILL NOT START?
Check:
•
The 10 Amp fuse in the meter box has not blown.
•
The Cooler’s 3-pin supply plug is correctly located in the power socket.
•
For power at the power socket (plug in another appliance and test).
•
The isolating switches at the unit and the supply power socket are turned ON.
•
The unit is turned ON at the Rinnai Networker Wall Control.
•
The fan is not in a delay due to ServoSeal damper, tank filling, or pad Pre-Wet operation.
•
The motor will spin freely with adequate tip clearance (approximately 2mm).
•
The motor is not hot, causing the auto-reset thermal overload switch in the fan motor to open circuit.
•
The motor speed sensor has not been damaged or displaced (where fitted).
•
That all electrical connections are secure, and if the motor will not start, call Rinnai for service.
10.4 WHAT IF THE PUMP WILL NOT START?
Check:
•
The 10 Amp fuse in the meter box has not blown.
•
The Cooler’s 3-pin supply plug is correctly located in the power socket.
•
For power at the power socket (plug in another appliance and test).
10. COMMISSIONING CHECKLIST