Specifications

Changing the temperature display (ºC/ ºF):
To change the temperature display, hold the “Set” key (see Keypad Functions) for 3
seconds until you see the letters ‘Ps’. Press set again to enter the password. Use the
arrow keys to set password “22” then press set. Use arrow keys to scroll through the
menus until you see ‘/5’ on the display and press set. Use arrow keys to change to “0”
for Celsius and press set. Use arrow keys to scroll to “r1” and press set. Use arrow keys
to set to “10” then press set. Next Scroll to “r2” and press set. Use arrow keys to set to
“32” and press set. To exit settings mode hold set button. Next Hold set button until set
temp is displayed. Use arrow keys to set the new temp and then press set.
*Note 4: 0 = ºC, 1 = ºF
Controller Operation:
When power is applied to the controller the temperature of the sensor in the piping is
displayed. If the temperature rises above the set-point (st) by the set-point differential
(rd), the compressor is turned on. Once the temperature reaches the set-point the
compressor is turned off. See Figure 2 below:
Figure 2