Bard MC4000Series, Alarms, Program Menu, Comfort Mode, Operating Instructions, Digital, Lead

MC4000Series

CLIMATE CONTROL SOLUTIONS

Solid State Dual Unit LeadLag Controller

AB3000-B Alarm Board Functions

Alarms

Alarm boards are optional and can be factory or field installed. See inside of controller for any alarm functions.

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

AB3000-A Alarm Board Functions

1st	2nd	3rd	4th	Cooling
Stage	Stage	Stage	Stage
1st	2nd	3rd	4th	Heating
Stage	Stage	Stage	Stage
				Digital
				Display
Lead	Unit	Unit		Dehumid.
Unit	#1	#2		Operation

On

Off

Program

Advance

ChangeComfort

Save

Operating Instructions

1.To swap lead and lag units press “ADVANCE”.

2.To enter the Program mode press the “Program” button and release it when “Pro9” appears. Use “DOWN” or “UP” arrows to scroll through menu.

3.A “Flashing” display means that the function or choice is “Set”, and the display will alternate between the step function and setting.

4.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.

5.When done programming press the “Program” button until display stops flashing and room temperature is shown. If no buttons are pushed within 30-seconds the controller will automatically revert back to “Run” mode.

Comfort Mode

Press “Comfort” button once to reset to 72F/22C Cooling and 68F/20C Heating for 1-hour. Display will flash during override period. Press 2nd-time to cancel during override if desired, or controller will automatically revert to selected SP after 1-hour.

Program Menu

NOTE: Push and hold Up or Down arrows for 1-second

until display blanks to move between steps.

1 Temperature at local (main) Sensor

2 Temperature at Remote 1 sensor location*

3 Temperature at Remote 2 sensor location*

4 Cooling setpoint temperature

(65 to 90F or 18.3 to 32.2C - Default is 77F/25C)

5 Deadband between cooling and heating setpoint (2 to 40F or 1.1 to 22.2C - Default is 17F/9.4C)

6 Continuous blower operation

(None, Lead, Both - Default is None)

7 Degree display (F or C - Default is F)

8 Alternating Lead-Lag-Lead-Lag Sequence or Non-Alternating Lead-Lead-Lag-Lag Sequence (Yes or No - Default is Yes for Alternating)

9 Lead-Lag changeover time (Days)

(1 to 30 days, or 0 for disabled - Default is 7)

10 Heat pump logic enabled - only for 1-stage heat pumps and forces Lead-Lag sequence and overrides a Non-Alt setting

(Yes or No - Default is No)

11 Unit 1 and 2 blowers automatically both run if delta T>5F between any 2 connected sensors (Yes or No - Default is Yes)

12	3-minute lead unit & 4-minute lag unit off-delay enabled		(Yes or No - Default is No)
13	Minimum of 3-minute compressor runtime enabled		(Yes or No - Default is No)
14	Low temperature alarm setpoint	(28 to 65F or 21.1 to 48.8C - Default is 45F/7.2C)
15	High temperature alarm Level 1 setpoint
	(70F to 120F or 21.1 to 48.8C - Default is 90F/32.2C)
16	High temperature alarm Level 2 setpoint	(70F to 120F or 21.1 to 49C - Default is 95F/35C)
17	Inter-stage differential from Stage 1 to 2		(2, 3, 4, 5 or 6F - Default is 4)
18	Inter-stage differential from Stage 2 to 3			(2 or 3F - Default is 2)
19	Inter-stage differential from Stage 3 to Stage 4			(2 or 3F - Default is 2)
20	Turn “On” above SP for Stage 1 Cooling			(+1 or +2 - Default is +2)
21	Turn “Off” below SP for Stage 1 Cooling		(-1, -2, -3, or -4F - Default is -2)
	Note: For CSon and CSoF Stage 2, 3 and 4 Cooling are automatically same as Stage 1
22	All Heating stages are equal -/+ On & Off differential		(-1/+1 or -2/+2 - Default is -2/+2)
23	1 or 2-stage compressor, if set to 1 the 2nd-Stage Cooling Alarm activates on Cooling Call 2
	If set to 2 the 2nd-Stage Cooling Alarm activates on Cooling Call 3.			(1 or 2 - Default is 1)

24 Controller is Locked. Consult building authority for further instructions.

*r1 and r2 will display temperature only if optional remote sensors are installed.

If sensors are not installed these are omitted in the display sequence. If r1 and/or r2 sensor installed the MC4000 will control to the “average” of the connected sensors.

Consult installation instructions for additional details.

7961-731

Manual	2100-563C
Page	35 of 40