Manual 2100-484E
Page 20 of 22
7961-665C

Cooling

Heating

1st
Stage 2nd
Stage 3rd
Stage 4th
Stage
1st
Stage 4th
Stage
3rd
Stage
2nd
Stage

Lead

Unit

Unit
#1 Unit
#2 Dehumid.

Operation

Program
Advance Comfort

Digital

Display

Temperature at Remote 1 sensor location*
Lead-lag-change-over time (1 to 30 days
or 0 for disabled, Default is 7)
Cooling setpoint temperature
(65 to 90 deg. F or 18 to 32 deg. C, Default is 75F/24C)
Temperature at local (main) Sensor
Programming Display Menu
Dehumidification Logic Enabled (Yes or No,
Default is No)
Continuous blower operation
(None, Lead, Both, Default is lead)
High temperature alarm level 2 setpoint (70 to 120 deg. F
or 21 to 49 deg. C, Default is 90F/32C)
High temperature alarm level 1 setpoint (70 to 120 deg. F
or 21 to 49 deg. C, Default is 85F/24C)
Low temperature alarm setpoint (28 to 65 deg. F
or -2 to 18 deg. C, Default is 50F/10C) Increase compressor Turn On/Turn Off differential with
excessive compressor cycling (Yes or No, Default is Yes)
3 min. lead unit & 4 min. lag unit off-delay
enabled (Yes or No, Default is No)
System 1 & 2 blowers run if delta T > 5F
between sensors (Yes or No, Default is Yes)
Power Loss Sys. 1
Power Loss Sys. 2
Refrig. Alarm Sys. 1
Refrig. Alarm Sys. 2
Fire/Smoke Alarm
Low Temp. Alarm
High Temp. Alarm 1
High Temp. Alarm 2
Lead/Lag Controller
Failure Alarm
Alarms
Save
Change
On
Off
To swap lead and lag unit positions press
the ADVANCE button.
To enter the Program mode, press the
PROGRAM button and release it when the
message PROG, appears on the display.
When in Program mode the DOWN and
UP arrows are used to scroll through the
programming steps.
A FLASHING display means that the
function or choice is “SET”, and the
display will alternate between the step
function and setting.
To change the setting of any step press
the CHANGE button and the display will
stop flashing, allowing change to the
setting by using the DOWN or UP arrows.
When desired setting is reached press the
SAVE button, and proceed as desired.
When done with programming changes
press the PROGRAM button until display
stops flashing and room temperature
display is shown. If no buttons are pushed
within 30-seconds the controller will
automatically revert back to "RUN" mode.

Programming Instructions

Refer to Installation Instructions for complete details.
* If installed. If sensors are not installed, no display is shown.
See label inside cover for sensor logic.
Locd
Controller is locked and no changes can be made.
Consult building authority.
Press COMFORT button once to reset
to 72°F/22°C Cooling and 68°F/20°C
Heating for 1-hour. Display will flash
72 (or 22) during override period. Press
2nd time to cancel during override if
desired, or will automatically revert after
1-hour.

Comfort Mode

Note: On the DC3003 version the
Lead/Lag Controller alarm light will
"Flash" if Unit #3 has Power Loss
or Refrig. Alarm. Open cover to
observe Fault light that is on the
alarm board located inside.
SP
Temperature at Outdoor sensor location*
DC Fan Operation (Edcf "emergency vent only",
Free "cooling", Both. Default is Both)
r I
Loc
Out
LLOC
cFAn
LoAL
HALI
HAL2
dFAn
Outdoor temperature setpoint for DC Fan
operation. Requires Outdoor Sensor (50-55-60F, Default is 55)
dFon
Deadband between cooling and heating setpoint
(2 to 20 deg. F or 1 to 11 deg. C, Default is 10F/5C)
db
dE9
Degrees shown in F or C (F or C, Default is F)
HuLE
CbdS
OFdE
Minimum 3 minute compressor run time
enabled (Yes or No, Default is No)
crun
CHYS
DC fan Purge duration in minutes
(No,1,2,3,4,5,6,7,8,9,10 Default is No)
Interval between DC Fan Purge cycles in Hours
(1,2,3,4,5,6,7,8,9,10 up to 24 Default is 1,
Pint display is suppressed if Purg is No)
Purg
Pint