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Operation and Programming the Regusol Controller
Used for scrolling backward
through the menu or to decrease
the adjustment value
Backward
Forward
Used for scrolling forward
through the menu or to
decrease the adjustment value
Set
Press “Set” key for programming mode
2 3 1
Operating Mode and Display
Forward or backward buttons will
indicate following information:
COL: Collector sensor temperature
TST: Tank temperature
hP: Operating hours counter
Programming Mod
e
To begin programming mode, press forward key to hP
display.
Press and hold forward key 1 in “hP” mode for
2 seconds.
Menu mode displays next indicator (DT 0) and may now be scrolled
through rest of programmable settings using keys 1 or 2 (forward or
backward through the entire menu).
Values in display settings may be changed by pressing “Set” (key
3). The “Set” icon will blink while in programming mode. Raise or
lower values with keys 1 or 2. Press set button once more to com-
plete change. “Set” icon will stop blinking.
Program Changes
“DT 0” differential turn on set point
The first program display will be “DT 0” differential turn on set point.
DT 0 is set at 12 ºF. This indicates what turn on temperature the
collectors must be above the tank to begin solar circulation. No
change is necessary.
“DT F” differential turn off set point
The second indicator will be “DT F” differential turn off set point. DT
F is set at 5 ºF. This indicates what turn-off temperature the collec-
tors must be above the tank for solar circulation to end. No change
is necessary.
Program Changes
Mode of Operation ON / OFF / AUTO
“HND 1”
Scroll through menu to “HND 1” display, near the end of the
program menu. This is for the setting switch ON, OFF, or
AUTO that allows the controller the function of operation.
It is a service operation switch.
ON position energizes the pump to circulate at all times.
OFF position keeps the pump from circulating.
AUTO allows the controller to operate the pump based on the
differential temperatures (normal operation).
Default setting is AUTO. To change press “Set” (key 3). Press
key 1 or 2 to change into ON, OFF or AUTO mode. Press set
key 3 again to complete change and before moving into the
next menu.
Always leave the controller in AUTO for normal solar collection
cycling.
“S MX” storage maximum set point
“S MX” is set at 140 ºF. This setting can be turned up only if
there is a anti-scald valve installed on the DHW system.
To change press “Set” (key 3). Press key 1 to increase or 2 to
decrease the storage maximum temperature. Press set key
again to set change.
Display
