Changing UV Bulb
Troubleshooting
It is time to replace the UV Lamp
when the AL2 code flashes on the
control panel
1
Turn off chiller and unplug the chiller, Remove the housing (see directions on p.18)
2
Unscrew the ring nut for the UV sterilizer port.
3
Remove rubber stopper from the quartz sleeve
4
Unplug the old UV lamp from the 4-pin socket., remove and discard lamp.
5
Slide new UV lamp into quartz sleeve, plug into 4-pin socket, return rubber stopper into sleeve
Do not touch the glass of the UV bulb with your bare hands.
6
Tighten ring nut over quartz sleeve
7
Replace housing and screws
8
Open shut off valves, restart pump and check for leaks. Turn UV on by pressing UV button.
9
Hold down UV button for 10 seconds to reset AL2 code.
1
Press and hold “SET” for 10 seconds.
The display will show a value of 1 to 20 - this is the current set differential
Page 22
2
Use the arrow Keys to change the set differential
The set differential reflects the number of degrees variance upward
from the set temperature you wish to allow. For example, if you have the
set temperature at 25° C, but do not want the chiller to turn on until it
reaches 27° C, set the differential value to 2. The default setting allows
a variance of 1° C from the set temperature before the chiller turns on.
This value is intended to protect the compressor from excessive wear.
Page 23
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