ICM Controls SC 3801 Installation, Operation & Application Manual

SC 3801
2 Heat/2 Cool
7-Day Programmable
Hardwired
Programmable Electronic Thermostat
•Programmable and Configurable
•Single/Dual Stage Heat Pump Systems
•Single/Dual Stage Heat/Cool Systems
•Backlit Display
•Auto Changeover
•Simpleset® 7 Day Programming
•Compatible with Gas, Oil, or Electric
•Title 24 Compliant/No Batteries Required
•Relay Outputs (minimum voltage drop in thermostat)
•Ideally Suited for:
– Residential (New Construction/Replacement), Light Commercial
Installation, Operation & Application Guide
For more information on our complete range of American-made
products – plus wiring diagrams, troubleshooting tips and more,
visit us at www.icmcontrols.com
Table of Contents
Specifications.........................................................................................................1
Important Safety Information................................................................................1
Package Contents/Tools Required..........................................................................1
To Remove Existing Thermostat...........................................................................2
To Install Thermostat.............................................................................................2
Remote Sensor Installation (Optional)...................................................................4
Wiring Diagrams................................................................................................. 5-6
Wiring Diagram Conversions............................................................................ 7-18
Configuration Mode........................................................................................ 19-22
Testing the Thermostat.......................................................................................23
Mode of Operation...............................................................................................24
Operating Modes.................................................................................................25
Setting the Time and Day of the Week................................................................26
Programming.......................................................................................................27
Simpleset® Programming.....................................................................................29
Lockout Function.................................................................................................29
Factory Preprogramming.....................................................................................30
Personal Program Schedule.................................................................................30
Troubleshooting...................................................................................................33
Specifications
Electrical rating: •24 VAC (18-30 VAC)
•1 amp maximum per terminal
•4 amp maximum total load
Temperature control range: 45°F to 90°F (7°C to 32°C) Accuracy: ± 1°F (± 0.5°C)
System configurations: 2-stage heat, 2-stage cool, heat pump, gas, oil, electric
Terminations: R, C, W1/O/B, Y1, W2, Y2, G, S1, S2
Important Safety Information
WARNING!: Always turn off power at the main power supply before installing, cleaning, or removing
thermostat.
•This thermostat is for 24 VAC applications only; do not use on voltages over 30 VAC
•Do not short across terminals of gas valve or system control to test operation; this will damage your
thermostat and void your warranty
•All wiring must conform to local and national electrical and building codes
•Do not use air conditioning when the outdoor temperature is below 50 degrees; this can damage your
A/C system and cause personal injuries
•Use this thermostat only as described in this manual
Package Contents/Tools Required
Package includes: SimpleComfort® 3801 programmable thermostat on base, labeled thermostat cover,
wiring labels, screws and wall anchors, Owner’s Manual, Installation, Operation and
Application Guide.
Tools required for installation: Drill with 3/16” bit, hammer, screwdriver.
To Remove Existing Thermostat
ELECTRICAL SHOCK HAZARD – Turn off power at the main service panel by removing the fuse
or switching the appropriate circuit breaker to the OFF position before removing the existing
thermostat.
1. Turn off power to the heating and cooling system by removing the fuse or switching the appropriate
circuit breaker off.
2. Remove cover of old thermostat. This should expose the wires.
3. Label the existing wires with the enclosed wire labels before removing wires.
4. After labeling wires, remove wires from wire terminals.
5. Remove existing thermostat base from wall.
6. Refer to the following section for instructions on how to install this thermostat.
To Install Thermostat
ELECTRICAL SHOCK HAZARD – Turn off power at the main service panel by removing the fuse
or switching the appropriate circuit breaker to the OFF position before removing the existing
thermostat.
IMPORTANT: Thermostat installation must conform to local and national building and electrical
codes and ordinances.
Note: Mount the thermostat about five feet above the floor. Do not mount the thermostat on an
outside wall, in direct sunlight, behind a door, or in an area affected by a vent or duct.
1. Turn off power to the heating and cooling system by removing the fuse or switching the appropriate
circuit breaker off.
To Install Thermostat (continued)
2.
To remove cover, insert and twist a coin or screwdriver in the slots on the sides of the thermostat.
3.
Put thermostat base against the wall where you plan to mount it (Be sure wires will feed through the
wire opening in the base of the thermostat).
4.
Mark the placement of the mounting holes.
5.
Set thermostat base and cover away from working area.
6.
Using a 3/16” drill bit, drill holes in the places you have marked for mounting.
7.
Use a hammer to tap supplied anchors in mounting holes.
8.
Align thermostat base with mounting holes and feed the control wires through wire opening.
9.
Use supplied screws to mount thermostat base to wall.
10. Insert stripped, labeled wires in matching wire terminals. See “Wiring Diagrams” section of this
manual (Pages 5 to 18). If using optional remote sensor, see “Remote Sensor Installation” (Page 4).
CAUTION!: Be sure exposed portion of wires does not touch other wires.
11. Tighten screws on terminal block. Gently tug wire to be sure of proper connection. Double check that
each wire is connected to the proper terminal.
12. Seal hole for wires behind thermostat with non-flammable insulation or putty.
13. Replace cover on thermostat by snapping it in place.
14. Turn on power to the system at the main service panel.
15. Test thermostat operation as described in “Testing the Thermostat” (Page 23).
Remote Sensor Installation (Optional)
1.Remove cover from remote sensor housing.
2.Select an appropriate location for mounting the remote sensor.
3.Mount remote sensor unit using hardware provided.
4.Install two strand shielded wire between remote sensor and thermostat. Shielded wire must be used.
Do not run remote sensor wire in conduit with other wires.
• Wire 1 should run between the S1 terminal on the thermostat and the S1 terminal on the
remote sensor
• Wire 2 should run between the S2 terminal on the thermostat and the S2 terminal on the
remote sensor
• Connect the shielding of the wire to the S2 terminal on the thermostat
5.Select correct option for monitoring temperature.
•To monitor temperature with remote sensor only, cut R12 from thermostat circuit board
•To average the temperatures of the remote sensor and the sensor of the SC3801, do not remove R12
Cut R12 from circuit board for remote sensor use only.
Leave R12 as is for averaging operation.
Wiring Diagrams
First Heating
Control
First Cooling
Control
First Cooling
Control
Second Heating
Control
Second Cooling
Control
Second Cooling
Control
Fan Control
Fan Control
Wiring Diagram (continued)
First Heating
Control
First Heating
Control
Second Heating
Control
Second Heating
Control
Fan Control
Wiring Diagram Conversions
SimpleComfort® 3801 Electronic Thermostat Conversion to:
Carrier Split Stream Condensers and Heat Pump Systems
Carrier Split Stream
SC 3801
Electronic Thermostat
SimpleComfort® 3801 Electronic Thermostat Conversion to:
Coleman 3000 Series Heat Pump Systems
SC 3801
Electronic Thermostat
SimpleComfort® 3801 Electronic Thermostat Conversion to:
Comfortmaker CYC Series Heat Pump Systems
SC 3801
Electronic Thermostat
SimpleComfort® 3801 Electronic Thermostat Conversion to:
Heil-Quaker 867.814 Series and PH50 Series Heat Pump Systems
SC 3801
Electronic Thermostat
10
SimpleComfort® 3801 Electronic Thermostat Conversion to:
Payne Reliant and Endura Model Heat Pump Systems
SC 3801
Electronic Thermostat
11
SimpleComfort® 3801 Electronic Thermostat Conversion to:
Rheem/Ruud: -PGB, -PFA, -PCB, -PLA, and -PKA Series Heat Pump Systems
SC 3801
Electronic Thermostat
12
SimpleComfort® 3801 Electronic Thermostat Conversion to:
Goodman, Janitrol, Trane/American Standard Heat Pumps
Note 1: X2 terminal on Goodman PCD capped
Note 2: T terminal on Goodman PCD capped
SC 3801
Electronic Thermostat
13
SimpleComfort® 3801 Electronic Thermostat Conversion to:
York E1CS, E1FB, E1FH Heat Pump Systems
SC 3801
Electronic Thermostat
14
SimpleComfort® 3801 Electronic Thermostat Conversion to:
Lennox CB19 Heat Pump Systems
Note 1: E terminal on Lennox PCD capped
Note 2: L terminal on Lennox PCD capped
SC 3801
Electronic Thermostat
15
SimpleComfort® 3801 Electronic Thermostat Conversion to:
Lennox HP19 and HP20 Heat Pump Systems
SC 3801
Electronic Thermostat
16
SimpleComfort® 3801 Electronic Thermostat Conversion to:
Lennox HP21 With CB21 PCB Heat Pump Systems
Note 1: E terminal on Lennox PCD capped
Note 2: L terminal on Lennox PCD capped
SC 3801
Electronic Thermostat
17
SimpleComfort® 3801 Electronic Thermostat Conversion to:
Lennox HP22 With CB19 PCB Heat Pump Systems
Note 1: E terminal on Lennox PCD capped
Note 2: L terminal on Lennox PCD capped
18
SC 3801
Electronic Thermostat
Configuration Mode
The configuration mode is used to set the SC3801 to match your heating/cooling system. The SC3801 functions
with heat pump, air conditioning, gas, oil, or electric heat systems.
1. To enter the configuration mode, simultaneously hold down the
and
SC3801 is in OFF mode.
2. Press the
or
button to change settings within each screen.
3. Press the button to advance to the next screen.
Note: The button will return you to the previous screen.
4. To exit configuration mode, hold in the
buttons while the
button for 6 seconds.
Configuration Mode Settings The setup screens for configuration mode are as follows:
1. Heat pump – Press the
or
button to configure as heat pump or non-heat pump system.
• ON = Heat pump system
• OFF = Non-heat pump system
Press the button to advance to the next screen.
2. Reversing valve – appears only if heat pump is set to “ON”.
Press the
or
button to set reversing valve.
If your reversing valve is energized in heat mode, set to “b.” If the reversing valve is
energized in cool mode, set to “o.”
Press the button to advance to the next screen.
3.
HEAT, ELECTRIC, or GAS/OIL – appears only if heat pump setting is “OFF”.
Press the
or
button to set heat type.
• For electric heat (interlocked), set “ELC” ON
• For gas or oil heat (non-interlocked), toggle “ELC” OFF
Press the button to advance to the next screen.
19
Configuration Mode Settings (continued)
4. Temperature scale (F or C) – Choose Fahrenheit or Celsius.
Press the
or
button to select.
Press the button to advance to the next screen.
5. Stage 1 Differential (1°F to 3°F) (1°C to 2°C) – Set the number of degrees between your “turn
on” temperature and your “setpoint” temperature.
Press the
or
button to set differential value.
Press the button to advance to the next screen.
6. Stage 2 Differential (1°F to 6°F) (1°C to 3°C) – Set the number of degress between when Stage
1 turns on and when Stage 2 turns on.
Press the
or
button to set differential value.
Press the button to advance to the next screen.
7. Deadband (1°F to 9°F) (1°C to 5°C) – Set the minimum number of degrees between your
heating system activation and your cooling system activation.
Press the
or
button to set deadband value.
Press the button to advance to the next screen.
8. Staged off outputs – Select whether the outputs for heating and cooling are staged off
independently or are satisfied simultaneously.
1 = Economy Mode – Outputs are staged on and off in accordance with setpoint and
differential.
0 = Comfort Mode – Outputs are staged on and all stages cycle off simultaneously when set
point is satisfied.
Press the
or
button to select.
Press the button to advance to the next screen.
9. Fan ON Delay – HEAT cycle (0-120 seconds) – Time fan is delayed turning ON at start of heat
cycle. For no delay, set to 0:00 (appears only for heat pump or electric heat systems).
Press the
CAUTION!: Changing from the default of 0:00 may permanently damage your system.
Press the
20
or
button to set delay.
button to advance to the next screen.
Configuration Mode Settings (continued)
10. Fan OFF Delay – HEAT cycle (0-240 seconds) – Time fan is delayed turning OFF after heat
cycle. For no delay, set to 0:00.
Note: This appears only for heat pump or electric heat systems.
Press the
CAUTION!: Changing from the default of 0:00 may permanently damage your system.
or
button to set delay.
Press the
button to advance to the next screen.
11. Fan ON Delay – COOL cycle (0-120 seconds) – Time fan is delayed turning ON at start of cool
cycle. For no delay, set to 0:00.
Press the
or
button to set delay.
CAUTION!: Changing from the default of 0:00 may permanently damage your system.
Press the button to advance to the next screen.
12. Fan OFF Delay – COOL cycle (0-240 seconds) – Time fan is delayed turning OFF after cool
cycle. For no delay, set to 0:00.
Press the
or
button to set delay.
CAUTION!: Changing from the default of 0:00 may permanently damage your system.
Press the button to advance to the next screen.
13. Maximum run cycles allowed per hour (d, 2-6).
d = as many as needed, 2-6 = maximum cycles/hour
Press the
or
button to select.
Press the button to advance to the next screen.
14. Auxiliary Delay ON – (0-30 minutes) – For heat pump systems only. Set the delay time in
minutes for auxiliary heat to be locked out after a call for second stage.
Press the
or
button to select.
Press the button to advance to the next screen.
21
Configuration Mode Settings (continued)
15. Status indicator (0, 1, 2) – Choose when status indicator LED (green, red) illuminates.
0 = Status indicator never on
1 = Status indicator on with first stage
2 = Status indicator on with second stage
Press the
or
button to select.
Press the button to advance to the next screen.
16. Lockout (0°F to 8°F, NITE, COOL-HEAT) – Select the number of degrees set temperature can
be changed during keypad lockout or select to lockout during NITE period only. COOL-HEAT
lockout allows adjustment of the set temperatures to the maximum heat set temperature
selected in Step 17 and minimum cool set temperature selected in Step 18.
Note: The mode cannot be changed when the thermostat is locked.
Press the
or
button to select.
Press the button to advance to the next screen.
17. Maximum Heat Setpoint (45°F to 90°F) (7°C to 32°C) Adjust to control the maximum Heat set temperature allowed.
Press the
or
button to select.
Press the button to advance to the next screen.
18. Minimum Cool Setpoint (45°F to 90°F) (7°C to 32°C)
Adjust to control the minimum Cool set temperature allowed.
Press the
or
button to select.
Press the button to advance to the next screen.
19. Room Temperature Offset (+9°F to -9°F) (+5°C to -5°C)
Adjust to calibrate displayed room temperature to match actual room temperature.
Press the
or
button to select.
To exit Configuration Mode, hold in the button for 6 seconds.
22
Testing the Thermostat
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.
Cool Test
1. Press mode button until cool mode screen is displayed. 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 four minute time delay to protect the compressor .
after it turns off. To temporarily bypass the four minute delay,
press the button four times.
Heat Test
1. Press mode button until heat mode screen is displayed.
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:For heat pumps, there is a four minute time delay to protect the
compressor after it turns off. To temporarily bypass the four minute
delay, press the button four times.
23
Mode of Operation
The SC3801 is a programmable, auto changeover, two stage heat, two stage cool thermostat. It functions
with air conditioning, heat pumps, gas, oil, or electric heat.
The thermostat activates a heating appliance when the room temperature is below the set heat
temperature (by the differential temperature). The red status indicator may come on with first or second
stage, depending on configuration. When the room temperature drops further, the second stage (auxiliary)
heat is activated. The heating is staged off when the room temperature increases. With heat pumps,
the thermostat will not let the compressor come on for four minutes after it turns off. This protects your
compressor. Emergency heat mode can be used to bypass heat pump operation, making auxiliary heat first
stage.
When the room temperature is greater than the set cool temperature (by the differential temperature), the
first stage cooling device is activated. The green status indicator may come on with first or second stage,
depending on configuration. If the room temperature increases, the second stage cooling device will be
activated. The cooling is staged off when 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 SC3801 has the following operating modes: OFF, Heat, Emergency Heat, Cool, Cool and Heat, and
Program mode. In OFF mode, the thermostat will not turn on heating or cooling devices. The indoor fan can
be turned on in all operating modes using the fan switch. In the Heat mode, the thermostat controls the
heating system. Emergency Heat mode can be utilized if a heat pump malfunction occurs. In the Cool mode,
the thermostat controls the cooling system. In the Cool and Heat mode, the thermostat controls both the
cooling and heating systems. In Program mode, the thermostat will automatically be controlled by the set
program. Program mode can function with Heat mode, Cool mode, Cool and Heat mode or OFF mode (for
Programmable fan option only). The clock display alternates with the set temperature display for Cool and
Heat mode.
The program schedule can be overridden by changing the set temperature ( or ). This puts the SC3801
thermostat into a 2-hour temporary hold. After 2 hours, it will automatically return to the program schedule.
The SC3801 also has a button lockout feature. This enables the thermostat to be set to the proper mode
and temperature and locked so it cannot be tampered with.
24
Operating Modes
Program Overview
OFF Mode
These are the possible operating modes for the SC3801
In this mode, the thermostat will not turn on the heating or cooling devices.
Note 1:The indoor fan can be turned on manually in every operating mode by sliding the
Auto/On switch to ON.
Note 2:To enter Programming Fan Only Mode, press the button once. Only the indoor
fan will operate during that period if it is activated in the program setup.
Cool Mode
In this mode, the thermostat controls the cooling system.
Note: There is a four-minute delay for your compressor to restart after it has turned off.
Heat Mode
In this mode, the thermostat controls the heating system.
Note:For heat pumps, there is a four-minute delay for your compressor to restart after it
has turned off.
Emergency Heat Mode (Heat pump systems only)
In this mode, heat pump system will be bypassed and auxiliary heat becomes first stage heat.
Note: Enter Emergency Heat from non-program heat mode by pressing the button for
10 seconds.
Note: Exit Emergency Heat by pressing the button for 10 seconds.
Cool and Heat Mode
The thermostat controls the heating and cooling systems, automatically changing over from one to
the other as required.
Operating modes continued on Page 26
25
Operating Mode (continued)
Program Mode
In this mode, the program function is on (PROG displays), and the thermostat will
automatically be controlled by the set program. Program mode can function with Heat
mode, Cool mode, Cool and Heat mode, or OFF mode (for Programmable fan option
only).
Press the
button to enter and exit program mode.
Program Mode Hold
The program schedule can be overridden by changing the set temperature ( or ). After 2 hours, the
program schedule will automatically be resumed. To return to the program schedule manually, press the
button twice.
Setting the Time and Day of the Week
The time and day of the week must be set for your program schedule to operate correctly.
1. Verify thermostat is in non-programmable mode (use the
2. Press and release button until OFF mode displays.
3. Press the
4. Press the
button to exit prog mode).
button in for 6 seconds.
or
button to adjust the time.
5. Press the button while the time is displayed. The display shows the day .
currently set on the thermostat (1=Monday, 2=Tuesday, etc).
6. Press the
or
button to set the correct day of the week that today is.
Note:Press the button in for 5 seconds to lock values into memory or
press the button once to enter programming. 26
Programming
Program Overview
The SC3801 programmable thermostat has four periods (MORN, DAY, EVE, NITE) that are customizable
for each day of the week. Each period will have a start time, heat temperature, cool temperature, and
programmable fan. The SC3801 monitors the day and time, while maintaining the specific conditions you
have chosen for each period in your program.
1. Verify thermostat is in non-programmable mode .
(use the button to exit prog mode).
2. Press and release the button until OFF mode displays.
3. Press the button for 6 seconds.
4. Press the button twice.
• Day is displayed (1-7)
5. Press the
or
button to change the day you want to program
(1=Monday, 2=Tuesday, etc).
6. Press the button to advance to the next screen.
Note:You can always press the button to return to the
previous screen.
•Period is displayed (MORN, DAY, EVE, NITE)
7. Press the
or
button to change period of day.
8. Press the button to advance to the next screen.
27
Programming (continued)
• Set time is displayed
9. Press the
or
button to change set time.
10. Press the button to advance to the next screen.
Note: Transitions required after 11:59 PM must be programmed in the next
day’s MORN period.
• Heat temperature is displayed (50°F to 90°F)
11. Press the
or
button to adjust heat set temperature.
12. Press the button to advance to the next screen.
•Cool temperature is displayed (45°F to 85°F)
13. Press the
or
button to adjust cool set temperature.
14. Press the button to advance to the next screen.
• Programmable fan is displayed
15. Press the
or
button to turn ON/OFF continuous indoor fan for that period.
16. Press the button to advance to the next screen.
Repeat steps 1-16 to program each day of the week individually or use the
Simpleset® feature (see Page 29) to program every day the same as Monday.
Press the
button for 5 seconds to exit programming and return to the OFF mode.
Press the
button to select the correct operating mode.
Press the
button to enter and exit program mode. PROG displays when in program mode.
28
Simpleset® Programming
Simpleset programming is a convenient method of programming the thermostat. Once the entire Monday
(Day 1) schedule is set, Simpleset® programming will copy the Monday schedule to every day of the week.
After the complete Monday schedule is set (see Programming on Page 27), you are at the Day 2 screen:
1. Press the
button once. Day 1 screen displays.
2. Press the
button for 2 seconds.
•The days of the week will count down from 7 to 1 and this will lock the .
settings into memory
•Once the schedule is locked in, you can go through each day and make .
any changes you require; This feature speeds up the programming of .
the standard weekday/weekend schedule
3.Press button for 5 seconds to exit Program mode and return to the OFF mode.
®
Lockout Feature
The SC3801 has a button lockout feature so the mode cannot be changed and the temperature
adjustment is limited. Select the appropriate lockout from Configuration Mode Settings, Step 16, Page 22
of this guide.
To activate the LOC feature:
1. Press the button and hold it in.
2. Also press button and keep both depressed for 10 seconds.
3. LOC will display and the Lockout Function will be enabled.
To deactivate the LOC feature, repeat steps 1 & 2 above (in this section).
29
Factory Preprogramming
The SC3801 comes preprogrammed with the following schedule:
MONDAY
thru
SUNDAY
MORN 6:00 AM
DAY
8:00 AM
EVE
6:00 PM
NITE
10:00 PM
HEAT
70°F
HEAT
62°F
HEAT
70°F
HEAT
62°F
COOL
78°F
COOL
85°F
COOL
78°F
COOL
82°F
FAN*
ON/OFF
FAN*
ON/OFF
FAN*
ON/OFF
FAN*
ON/OFF
* = Programmable fan option
Personal Program Schedule
Use the following personal program schedule to record your settings:
MONDAY
1
MORN
DAY
EVE
NITE
HEAT
HEAT
HEAT
HEAT
COOL
FAN*
COOL
ON/OFF
FAN*
* = Programmable fan option
30
COOL
ON/OFF
FAN*
COOL
ON/OFF
FAN*
ON/OFF
Personal Program Schedule (continued)
TUESDAY
2
MORN
3
HEAT
HEAT
HEAT
COOL
COOL
COOL
ON/OFF
FAN*
ON/OFF
FAN*
ON/OFF
FAN*
MORN
DAY
EVE
NITE
HEAT
HEAT
HEAT
HEAT
FAN*
4
NITE
HEAT
COOL
THURSDAY
EVE
COOL
FAN*
WEDNESDAY
DAY
COOL
ON/OFF
MORN
FAN*
COOL
ON/OFF
DAY
FAN*
COOL
ON/OFF
EVE
FAN*
HEAT
HEAT
HEAT
HEAT
COOL
COOL
COOL
ON/OFF
FAN*
ON/OFF
FAN*
ON/OFF
NITE
COOL
FAN*
ON/OFF
ON/OFF
FAN*
ON/OFF
31
Personal Program Schedule (continued)
FRIDAY
5
MORN
6
HEAT
HEAT
HEAT
COOL
COOL
COOL
ON/OFF
ON/OFF
FAN*
ON/OFF
FAN*
DAY
EVE
NITE
HEAT
HEAT
HEAT
HEAT
COOL
ON/OFF
MORN
FAN*
COOL
ON/OFF
DAY
FAN*
EVE
FAN*
HEAT
HEAT
HEAT
COOL
COOL
COOL
FAN*
ON/OFF
FAN*
ON/OFF
NITE
HEAT
ON/OFF
ON/OFF
COOL
ON/OFF
COOL
FAN*
32
FAN*
MORN
FAN*
7
NITE
HEAT
COOL
SUNDAY
EVE
COOL
FAN*
SATURDAY
DAY
ON/OFF
FAN*
ON/OFF
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, check electric heat setup in configuration (see
“Configuration Mode,” Step 3, Page 19)
Program schedule activates at the
wrong time
Check time (AM/PM) set on thermostat (see “Setting the Time,” Page 26)
Thermostat turns on and off too
frequently
Adjust temperature differential (see “Differential,” Steps 5 and 6, Page 20)
Thermostat does not follow program
Verify it is operating in Program mode (PROG displays); check time (AM/PM)
Fan runs continuously
Check fan On/Auto switch; check programmable fan setting in program;
check fan settings in configuration (see “Configuration Mode,” Page 19)
Room temperature is not correct
Verify wall hole is plugged with putty or insulation; check wiring and location
for remote sensor if used
LOC displays when any button is
pressed or thermostat buttons are
inoperative
Thermostat has the button lockout function activated (see “Lockout
Feature,” Page 29)
EH shows on display
Thermostat is in Emergency Heat Mode (see “Operating Modes,” Page 25)
Very limited setpoint adjustment
Thermostat has the button lockout function activated (see “Lockout
Feature,” Page 29)
Check configuration mode settings 17 and 18, Page 22
Problem not listed above
Press Reset button once*
* Reset Button Function Time, day and mode changed to last saved settings (saved after power loss or when exiting
program setup), configuration and program settings are unchanged.
33
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 fit for any particular purpose.
Patent No. 424,953
6333 Daedalus Drive, Cicero, NY 13039
(Toll Free) 800-365-5525 (Phone) 315-233-5266 (Fax) 315-233-5276
www.icmcontrols.com
LIA216