Rinnai 20 I Series Evap AC IM
7.1 START UP
On start up a 15 second delay period provides time for the Motorised - WinterSeal to open before any other
function begins�
If the Cooler has been OFF for longer than 45 minutes the tank will require relling. Allow approximately 3-5
minutes depending on the water pressure�
7.2 PRE-WET
The Cooler has been pre-programmed to automatically saturate the lter pads when the system is turned ON.
Pre-wet is the process of running the pump and wetting the Cooling Pads without the fan operating, ensuring full
pad saturation and optimum cooling potential when the fan starts�
Pump Off Time Pre-wet Time
Less Than 2 minutes No Pre-wet
Longer than 2 minutes Pre-wet 4 minutes
Longer than 45 minutes Tank has to be lled, therefore total time including Pre-wet is 5 to 7 minutes
7.3 TANK WATER QUALITY AND REPLENISHMENT DURING OPERATION
During the Cooler’s operation with the pump operating, the Cooler will be evaporating water and automatically
relling itself. I Series Coolers will periodically, after a specied number of tank rells, ush out the tank without
stopping the Cooler�
7.4 SHUT-DOWN TIMES
When the Cooler is turned OFF at the end of use the following will occur:
1� Water supply to the unit will cease�
2� Circulation of water within the unit will cease�
3� The supply air fans will continue to run for up to a further 6 minutes to dry out the Cooling Pads�
4� After 45 minutes of no system operation the shut-down procedure begins with draining of the tank, followed
by a wash cycle to clean the tank for approximately one minute�
7. I SERIES SEQUENCE OF OPERATION
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