GENERAL PROGRAMMING OVERVIEW
MC4000 CONTROLLER BUTTONS AND FUNCTION
On/Off Button
1.Press and release the On/Off button to turn On controller,
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 | ||||
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LSEn | Temperature at local (main) sensor | — | — | |
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SP | Cooling set point temperature | 65 to 90F (18 to 32C) | 77F (25C) | |
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db | Deadband between cooling SP and heating set point | 2 to 40F (1 to 24C) | 17F (9.4C) | |
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r1 | Temperature at remote sensor 1 location, if connected | — | — | |
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r2 | Temperature at remote sensor 2 location, if connected | — | — | |
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cFAn | Continuous blower operation | None, Lead, Both | None | |
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deg | Controller system operates in F or C | F or C | F | |
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Alt | Alternating | Yes or No | Yes | |
Yes = Alternating | ||||
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LLCO | 1 - 30 days, or 0 for disabled | 7 | ||
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HP | Heat pump logic enabled — only for | Yes or No | No | |
(overrides a | ||||
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Cbd5 | Unit 1 and 2 blowers automatically both run if delta T >5F between any 2 connected sensors | Yes or No | Yes | |
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OFde | Yes or No | No | ||
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crun | Minimum | Yes or No | No | |
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LoAL | Low temperature alarm setpoint | 28 to 65F | 45F (7.2C) | |
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HAL1 | High temperature alarm level #1 setpoint | 70F to 120F (21 to 49C) | 90F (32C) | |
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HAL2 | High temperature alarm level #2 setpoint | 70F to 120F (21 to 49C) | 95F (35C) | |
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Locd | Controller is locked and no changes can be made. Consult building authority. | If locked, display will show | Unlocked | |
Locd if changes attempted | ||||
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ISd2 | From Stage 1 to Stage 2 | 2, 3, 4, 5 or 6F | 4 | |
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ISd3 | From Stage 2 to Stage 3 | 2 or 3F | 2 | |
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ISd4 | From Stage 3 to Stage 4 | 2 or 3F | 2 | |
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On/Off Differential (Hysterisis) |
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CSon | Turn "On" above SP for Stage 1 Cooling | +1 or 2F | 2 | |
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CSoF | Turn "Off" below SP for Stage 1 Cooling | |||
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| Stage 2, 3 and 4 Cooling automatically set same as Stage 1 decisions |
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HSoo | All Heating Stages are equal | |||
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CoPr | 1 or | 1 or 2 | 1 | |
if set to 2 the 2nd stage Cooling Alarm activates on Cooling Call 3 | ||||
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Manual | |
Page | 8 of 40 |