GENERAL PROGRAMMING OVERVIEW

MC4000 CONTROLLER BUTTONS AND FUNCTION

On/Off Button

1.Press and release the On/Off button to turn On controller, 4-character display will illuminate and Lead unit LED will light.

2.Press and release the On/Off button to turn Off controller. Controller will go dark and A/C units will stop.

Comfort Button

1.Press and release the Comfort button to change the Cooling Set Point to 72F and the Heating Set Point to 68F for a period of 1 hour.

2.Set Points will return to the programmed settings automatically after 1 hour.

3.Pressing the Comfort button during the 1 hour period will deactivate the Set Point change.

4.The temperature display will flash the current temperature while in override mode.

Program Button

1.Press the Program button and release it when the message “Prog” appears on the display.

2.Refer to Programming Instructions and follow these commands to change from Default settings.

Advance/Change/Save Button

1.Press and release the Advance button to swap lead and lag unit positions.

2.When in Program mode the Down and Up buttons are used to scroll through the programming steps.

3.A flashing display means that the particular function of that programming step is “set”, and the display will alternate between the step function and the setting.

4.To change the setting press the Change button and the display will stop flashing, allowing change to the setting.

5.Use Down or Up arrows to change setting as desired, and press the Save button and proceed as desired.

6.When done with programming changes press the Program button until display stops flashing and room temperature is shown.

Up and Down Buttons

These buttons are used to change the settings in conjunction with the Advance/Change/Save button when in programming mode.

CONTROLLER PROGRAMMABLE FEATURES AND DEFAULT SETTINGS

Order /

Description

Range / Choice

Default

Display

 

 

 

 

 

 

 

LSEn

Temperature at local (main) sensor

 

 

 

 

SP

Cooling set point temperature

65 to 90F (18 to 32C)

77F (25C)

 

 

 

 

db

Deadband between cooling SP and heating set point

2 to 40F (1 to 24C)

17F (9.4C)

 

 

 

 

r1

Temperature at remote sensor 1 location, if connected

 

 

 

 

r2

Temperature at remote sensor 2 location, if connected

 

 

 

 

cFAn

Continuous blower operation

None, Lead, Both

None

 

 

 

 

deg

Controller system operates in F or C

F or C

F

 

 

 

 

Alt

Alternating Lead-Lag-Lead-Lag sequence or Non-Alternating Lead-Lead-Lag-Lag sequence —

Yes or No

Yes

Yes = Alternating

 

 

 

 

 

 

 

LLCO

Lead-Lag changeover time (Days)

1 - 30 days, or 0 for disabled

7

 

 

 

 

HP

Heat pump logic enabled — only for 1-stage heat pumps and forces Lead-Lag sequence

Yes or No

No

(overrides a Non-Alt setting)

 

 

 

 

 

 

 

Cbd5

Unit 1 and 2 blowers automatically both run if delta T >5F between any 2 connected sensors

Yes or No

Yes

 

 

 

 

OFde

3-minute lead unit & 4-minute lag unit off-delay enabled

Yes or No

No

 

 

 

 

crun

Minimum 3-minute compressor runtime enabled

Yes or No

No

 

 

 

 

LoAL

Low temperature alarm setpoint

28 to 65F (-2 to 18C)

45F (7.2C)

 

 

 

 

HAL1

High temperature alarm level #1 setpoint

70F to 120F (21 to 49C)

90F (32C)

 

 

 

 

HAL2

High temperature alarm level #2 setpoint

70F to 120F (21 to 49C)

95F (35C)

 

 

 

 

Locd

Controller is locked and no changes can be made. Consult building authority.

If locked, display will show

Unlocked

Locd if changes attempted

 

 

 

 

 

 

 

Inter-Stage Differential

 

 

 

 

 

 

ISd2

From Stage 1 to Stage 2

2, 3, 4, 5 or 6F

4

 

 

 

 

ISd3

From Stage 2 to Stage 3

2 or 3F

2

 

 

 

 

ISd4

From Stage 3 to Stage 4

2 or 3F

2

 

 

 

 

On/Off Differential (Hysterisis)

 

 

 

 

 

 

CSon

Turn "On" above SP for Stage 1 Cooling

+1 or 2F

2

 

 

 

 

CSoF

Turn "Off" below SP for Stage 1 Cooling

-1, 2, 3 or 4F

-2

 

 

 

 

 

Stage 2, 3 and 4 Cooling automatically set same as Stage 1 decisions

 

 

 

 

 

 

HSoo

All Heating Stages are equal -/+ on & off differential

-1/+1 or -2/+2

-2/+2

 

 

 

 

CoPr

1 or 2-stage compressor, if set to 1 the 2nd stage Cooling Alarm activates on Cooling Call 2,

1 or 2

1

if set to 2 the 2nd stage Cooling Alarm activates on Cooling Call 3

 

 

 

 

 

 

 

Manual

2100-563C

Page

8 of 40

Page 8
Image 8
Bard MC4000 installation instructions General Programming Overview, Controller Programmable Features and Default Settings

MC4000 specifications

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