Heatcraft H-IM-QRC, Installation And Operation Manual, Page: 9 / 40

9
Programming & Reviewing
Programming And Reviewing Settings/Changes
The
PROGRAM REVIEW
button is used to program, review and
change all program settings for the system.
Press
“PROGRAM REVIEW”
button. The setpoint item will appear on
the LED. After a few seconds delay, the Setpoint value will display.
Each time the button is pressed a different setpoint item is displayed.
Next, use the “SELECT” knob to change value of setpoint item.
Next, when the desired value is selected, press the
“ENTER”
button
to place it in program memory. If the
“ENTER”
button is not pressed,
the value will not be stored in the memory and thus will not be
changed.
A-E
- Set Defrost type
(Air or ELE)
rEF
- Set Refrigerant type (R-22, R-404A, R-507,
R-407A, R-407C, R-407F, R-448A or R-449A)
bot - Set Box temperature
(-30°F to +70°F)
SUP - Set Superheat
(4°F to 20°F)
SLA - Set Board as a Slave
(Yes or No)
ddF - Demand defrost enable (Yes or No)
dFn
- Set Number of defrosts per day
(1, 2, 3, 4, 5, 6, 8,10 or 12 per day)
dFF
- Set Defrost Fail-safe time
(10 to 200 minutes)
dFt
- Set Defrost End temperature
(40°F to 100°F)
dFS - Set Defrost Delay Start Time
(0.5 Hours to 23.5 Hours)
ALH - Set Alarm High temperature
(-40°F to 90°F)
ALL - Set Alarm Low temperature
(-40°F to 90°F)
ALt
- Set Alarm time
(2 to 120 minutes)
F-C
- Set Fahrenheit / Celsius
temperature units (°F/°C)
FnS - Off cycle fan stir cycle enable (On or OFF)
“PROGRAM REVIEW” ITEMS
IMPORTANT NOTE:
When a board is installed and power is applied to the system, the following initialization steps should be taken for EACH BOARD in system:
1. Press and Hold the "
ENTER " button
2. While continuing to hold the " ENTER " button, press and hold the " CLEAR/TEST " button. " 888 " will display on the LED display.
3. Continue to hold both " ENTER " and " CLEAR/TEST " until " EE? " displays on the LED.
4. Once " EE? " displays, immediately release and the press the " ENTER " again.
5. The board will now re-initialize and return to the normal display.
If " nch " is displayed, then the board did not properly initialize and the steps 1-5 should be re-taken.