Changing The Setpoint Temperature; Setting The Auto-Defrost Cycle (Cold Mode) - Hatco HCWBIR Series Installation And Operating Manual

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Changing the Setpoint Temperature

Use the following procedure to change the setpoint temperature
on the digital temperature controller.
NOTE: Changes to the setpoint temperature should be made
in small increments (1 to 2 degrees). Wait at least two
hours after a change in setpoint temperature before
checking for the desired result.
1. Press and hold the
display flashes the current setpoint temperature.
2. Press the or
setpoint temperature. If no key is pressed within 60
seconds, the display will revert to normal operation and
the current temperature of the unit will be shown on the
display.
3. Press the key to lock in the new setpoint temperature.
The display will revert to show the current temperature of
the unit.
Display
Unit
"Active"
Symbol
Digital Temperature Controller
NOTE: If the display flashes "OFF" and then the current
temperature, press and hold the
seconds. The display will no longer flash "OFF".
If the display flashes "df" and then the current
temperature, press and hold the
seconds. The display will no longer flash "df".
Unit "Active"
Symbol
Form No. HCWBIRM-0121
key for one second until the
key to increase or decrease the
SET
Up Arrow/
Standby Key Key
Down Arrow/
Defrost Key
key for three
key for three
Drain Position Indicator
(Off = Open/Cold, On = Closed/Hot)
HCWBI Series Control Box (shown operating in COLD Mode)
Setting the Auto-Defrost Cycle
Hot/cold wells are programmed at the factory with the auto-
defrost cycle deactivated. Use the following procedure to
activate the auto-defrost cycle if ambient or operational
conditions require the unit to defrost occasionally. When the
unit is in a defrost cycle,
1. Press and hold the
programming mode. "PS" (password) will appear on the
display.
2. Press the
the display.
3. Press the
on the display, then press the
4. Use the
parameters until "dI" (defrost interval) appears on the display.
5. Press the
defrost cycles will be shown on the display. For new units,
this value will be "0".
6. Press the
the desired number of hours between defrost cycles. See
below for examples of how the defrost cycle(s) operate:
"0" = auto-defrost is deactivated
"1" = unit will defrost every hour
"4" = unit will defrost every four hours
"12" = unit will defrost every twelve hours
If no key is pressed within 60 seconds, the display will
revert to normal operation and the current temperature of
the unit will be shown on the display.
7. Press the
8. Press and hold the
programming mode. The display will revert to show the
current temperature of the unit.
COLD Digital
Power I/O/I (On/Off/On)
Temperature
Switch
Controller
HOT Digital
Temperature Controller
15
OPERATION
will appear on the display.
key for three seconds to access
key again. A numeric value will appear on
or key until the number "22" appears
key.
or key to scroll through the programmable
key to select "dI". The current number of
or key within 60 seconds to scroll to
key to lock in the new defrost cycle setting.
key for three seconds to exit