
Patent No. 424,953 – Design
Patent No. 6,597,275 – Thermal Intrusion Barrier
7313 William Barry Blvd., North Syracuse, NY 13212
(Toll Free) 800-365-5525 (Phone) 315-233-5266 (Fax) 315-233-5276
www.icmcontrols.com
ONE-YEAR LIMITED WARRANTY
The Seller warrants its products against defects in material or workmanship for a period of one (1) year from the
date of manufacture. The liability of the Seller is limited, at its option, to repair, replace or issue a non-case credit for
the purchase prices of the goods which are provided to be defective. The warranty and remedies set forth herein
do not apply to any goods or parts thereof which have been subjected to misuse including any use or application
in violation of the Seller’s instructions, neglect, tampering, improper storage, incorrect installation or servicing not
performed by the Seller. In order to permit the Seller to properly administer the warranty, the Buyer shall: 1) Notify
the Seller promptly of any claim, submitting date code information or any other pertinent data as requested by the
Seller. 2) Permit the Seller to inspect and test the product claimed to be defective. Items claimed to be defective
and are determined by Seller to be non-defective are subject to a $30.00 per hour inspection fee. This warranty
constitutes the Seller’s sole liability hereunder and is in lieu of any other warranty expressed, implied or statutory.
Unless otherwise stated in writing, Seller makes no warranty that the goods depicted or described herein are t for
any particular purpose.
LIAF190
Configuration Mode
2. Temperature Differential – Stage 1 – (1°F to 5°F) (0.5°C to 2.5°C)
Set the number of degrees between your “setpoint” temperature and your “turn
on” temperature for rst stage.
Press the down or up button to set differential value.
Press the SW6 button to advance to the next screen.
DIFF
Conguration Mode Settings
The setup screens for Conguration Mode are as follows:
1. Temperature Scale (F or C) – Choose Fahrenheit or Celsius.
Press the down or up button to select.
Press the SW6 button to advance to the next screen.
ROOMSET
8. Room temperature offset (+9°F to -9°F) (+4.5°C to -4.5°C)
Adjust to calibrate displayed room temperature to match actual room temperature
(must be adjusted before permanent lock).
Note: When not set to 0, ROOM will display.
Press the down or up button to select.
Press the SW6 button to advance to the next screen.
5. Staged Off Outputs
Select whether the outputs for heating and cooling are staged off independently
or are satised simultaneously.
0 = Comfort Mode – Outputs are staged on and and all stages cycle off
simultaneously when set point is satised.
1 = Economy Mode – Outputs are staged on and off in accordance with set point and differential.
DIFF
4. Temperature Differential – Stage 3 – (1°F to 5°F) (0.5°C to 2.5°C) –
Set the number of degrees between when stage 2 turns on and stage 3 turns on.
Press the down or up button to set differential value.
Press the SW6 button to advance to the next screen.
DIFF
3. Temperature Differential – Stage 2 – (1°F to 5°F) (0.5°C to 2.5°C)
Set the number of degrees between when stage 1 turns on and stage 2 turns on.
Press the down or up button to set differential value.
Press the SW6 button to advance to the next screen.
The conguration mode is used to set the MP2211L to match your heating/cooling system.
The MP2211L functions with up to 3-stage heat pump systems.
To congure the MP2211L, perform the following steps:
1. Slide the Mode switch to the OFF position.
2. Remove the cover of the thermostat by gently pulling on one of the corners.
3. Simultaneously hold the SW5 & SW6 buttons in for 2 seconds while the MP2211L is in OFF mode.
4. Press the down or up button to change settings within each screen.
5. Press the SW6 button to advance to the next screen.
Note: The SW5 button will return you to the previous screen.
6. To exit conguration mode, slide the Mode switch to Heat or Cool.
Mode of Operation
The MP2211L is a multi-stage, heat pump thermostat for 24 VAC systems.
The thermostat activates the heat pump when the room temperature is below the heat set
temperature (by the differential temperature). Auxiliary heat will be activated if the room temperature
continues to drop. Third stage heat is activated (on some systems) if the temperature drops further.
The heat outputs are staged off (congurable, setting 5) as the room temperature increases. The
thermostat will not let the compressor come on for four minutes after it turns off. This protects your
compressor.
When the room temperature is greater than the cool set temperature (by the differential temperature),
the cooling device is activated. Second-stage cooling will be activated if the room temperature
continues to rise. The cool outputs are staged off (congurable, setting 5) as the room temperature
decreases. The thermostat will not let the compressor come on for four minutes after it turns off. This
protects your compressor.
The MP2211L has the following operating modes: OFF, Heat, Emergency Heat and Cool. In OFF
mode, the thermostat will not turn on heating or cooling devices. In the Heat mode, the thermostat
controls the heat pump system. In the Emergency Heat mode, the heat pump is bypassed and
auxiliary becomes the primary heat source. In the Cool mode, the thermostat controls the cooling
system. The indoor fan can be turned on in all operating modes using the Fan switch.
Troubleshooting
Symptom Remedy
No display Check for 24 VAC at thermostat; display is blank when 24 VAC
is not present
System fan does not come on
properly
Verify wiring is correct
Thermostat turns on and off too
frequently
Adjust temperature differential (see “Temperature Differential,”
Stage 1, Step 2)
Fan runs continuously Check fan On/Auto switch, ON position runs indoor fan
continuously
Auxiliary heat not on soon
enough
Adjust differential for 2nd and 3rd stage heating if required (see
Conguration, Steps 3 and 4)
Err or Erd on display Abnormal Rate of Change (ARC) detected. Thermostat defaults
into lockout sequence. When normal operation resumes, error
message can be cleared with press of any button
Problem not listed above Press the Reset button once; display will be refreshed and anti-
short cycle timing will be reset to zero
ARC Detection Technology
This thermostat comes enabled with ICM Controls’ patent-pending Abnormal Rate of Change
(ARC) detection technology that helps deter tenants from attempting to “trick” the thermostat into a
false reading. Upon sensing an abnormal rise or drop in temperature, the thermostat operation will
automatically default into a lockout sequence. The display will show Err for an abnormal RISE in
temperature, or Erd for an abnormal DROP in temperature. When the thermostat returns to normal
operation, the error message can be cleared with the press of any button.
Auto
On
Auto
On
Cool Off Heat Emer
Cool Off Heat Emer
Heat Test
1. Slide Mode switch to Heat mode.
2. Adjust the set temperature so it is 5 degrees above the room
temperature.
3. Heat should come on within a few seconds.
4. Adjust the set temperature so it is 2 degrees below the room
temperature and the heat should turn off. There may be a fan delay
on your system.
Note: There is a four minute time delay to protect the compressor after it turns off. To
temporarily bypass the four minute delay, slide the Mode switch to OFF for 2 seconds and
then back to Heat.
Emergency Heat Test
1. Slide Mode switch to Emer position (Emer LED lights).
2. Adjust the set temperature so it is 5 degrees above the room temperature.
There may be a four minute delay.
3. Second stage heat should come on (Aux LED lights).
4. Adjust the set temperature so it is 2 degrees below the room temperature.
Heat should turn off. There may be a fan delay on your system.
Fan Test
1. Slide Fan switch to On position.
2. Indoor fan turns on.
3. Slide Fan switch to Auto position.
4. Indoor fan turns off.
9. Placebo Feature – Set point can be set to wide range but they will be
controlled to maximum heat set point and minimum cool set point.
0 = Feature OFF 1 = Feature ON
Press the up or down button to select.
Press the
RIGHT
switch to advance to the next screen.
6. Maximum Heat Setpoint (45°F to 75°F) (7°C to 24°C)
Adjust to control the maximum Heat set temperature allowed.
Press the down or up button to select.
Press the SW6 button to advance to the next screen.
7. Minimum Cool Setpoint (70°F to 90°F) (21°C to 32°C)
Adjust to control the minimum Cool set temperature allowed.
Press the down or up button to select.
Press the SW6 button to advance to the next screen.
10. Permanent Lock Screen
Hold up and down button until counter reaches 0 to permanently lock
conguration screens.
!!! VERY IMPORTANT !!!
Conguration screens #6 to #10 can’t be changed after they are permanently
locked. To recongure, a locked thermostat must be returned to ICM Controls for
reprogramming, which involves a fee.
ROOM
CAUTION!
:
Do not use air conditioning when the outdoor temperature is below 50 degrees.
This can damage your air conditioning system and cause personal injuries.
1. Move the Fan Auto/On switch to the Auto position.
2. Move the Cool/Off/Heat/Emer switch to Cool or Heat, depending on the season.
Starting the Thermostat
LED Indicators
There are three LED indicators located on the front of the thermostat. They are designed to inform
you about the following:
LED Color Function
AUX Green • This turns on when the auxiliary (second stage) heating is in operation
• Turns on 1-6°F below rst stage and is user adjustable (see Conguration Mode, Step 3)
CHECK Red • When this turns on, a malfunction has occurred somewhere in the heat pump system
• Please contact a qualied service technician as soon as possible to check your system
EMER Red • This light turns on whenever the emergency heat is manually selected (Mode switch is in
the EMER position)
• While in the emergency Heat mode, the heat pump compressor is off, and the emergency
heat (same as the auxiliary heat) maintains the setpoint temperature
Once the thermostat is installed, it should be thoroughly tested.
CAUTION!:
Do not energize the air conditioning system when the outdoor temperature is
below 50 degrees. It can result in equipment damage or personal injury.
Testing the Thermostat
Cool Test
1. Slide Mode switch to Cool mode.
2. Adjust set temperature so it is 5 degrees below room temperature.
3. Air conditioning should come on within a few seconds.
4. Adjust the set temperature 2 degrees above the room temperature and the A/C should turn off.
There may be a fan delay on your system.
Note: There is a 4-minute time delay to protect the compressor after it turns off. To temporarily
bypass the 4-minute delay, slide the Mode switch to OFF for 2 sec. and then back to Cool.
Cool Off Heat Emer
Press the SW5 button to review settings.
Press the
Mode
switch to
Heat
or
Cool
to exit conguration.