ICM Controls ICM1511 Series User manual

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Interrupted Ignition Series
Oil Primary Control
• Controls oil burner, oil valve
(if desired) and the ignition
transformer in response to a call
for heat.
• ICM patented energy transfer
technology ensures fuel valve and
pump will only be energized if the
control is properly functioning
• LED to indicate system lockout
• Enclosed safety switch with
external reset button
• Direct replacement for popular
competitive models
Application Guide & Installation Instruction
for ICM1511*, ICM1512*, ICM1513*, ICM1514*

Application......................................................2
Features........................................................3
Specifications....................................................5
Installation......................................................7
Testing........................................................10
Operation......................................................12
TroubleshootingandMaintenance...................................14
WiringDiagrams.................................................17
Table of Contents

1
Figure 1: Terminals, connectors, LED, reset button and DIP switch locations.
Diagnostic
LED
Reset
Button
Delay Time
DIP Switch Alarm
Terminals

2
Application
ICM’s Interrupted Ignition Oil Primary Control is ideal for residential oil-fired burners
used in boilers, forced air furnaces, and water heaters.
The oil primary:
• Controls fuel oil
• Senses the flame
• Commands ignition spark
• Triggers a remote alarm circuit when in lockout
The ICM Interrupted Ignition Oil Primary Control can be used with hydronic and forced
air systems. Line voltage switching controllers typically control the start and stop of
the combustion sequences when the oil primary control is used with hydronic systems.
With forced air systems, low voltage mechanical and electronic thermostats control
the start and stop of the combustion process.
The ICM Interrupted Ignition Oil Primary Control operates a valve to prevent oil flow
when the burner motor runs prior to combustion (the valve-on delay) and when the
burner motor runs after combustion (the burner motor-off delay).
The ICM Interrupted Ignition Oil Primary Control is intended for use only on oil burning
appliances that do not require pre-purge and post-purge as a safety related function.
The purposes of the valve-on and burner motor-off delays in the ICM Interrupted
Ignition Oil Primary Control are to help establish draft and reduce the problems
associated with oil after-drip.

3
Features
• Thermostat Compatibility
• Limited Recycle:
– Number of recycle trials is limited to three per heat call
– Lockout results when flame extinguishes three times without a successful heat
call
• Pump Priming Cycle:
– Place the oil primary control in purge cycle by pressing and releasing the unit’s
reset button when in delayed valve-on, safety check, ignition, or carry-over periods.
– For this cycle only, lockout timing will extend to 4 minutes with ignition set in
intermittent mode
– To reset the unit for entry to pump priming cycle, press and hold the reset button
until the LED flashes (approximately 30 seconds)
– The oil primary control will revert to its labeled interrupted and safety switch
timing conditions.
– Pump priming cycle entrance can only occur if no lockouts have taken place since
the most recent successful call for heat
• Disable Function:
– Press and hold the reset button to disable all functions
– Re-enable by releasing the reset button
– Restart will occur at the start of the normal heat cycle on safety check
• Limited Reset (Restricted Mode):
– Limit unburned oil accumulation in the combustion area by resetting the control up
to three times

4
– Every time there is a successful heat call, the count will return to zero
– From restricted mode, reset by pressing and holding the reset button for 30
seconds. When the LED flashes twice, reset has been accomplished
• T-T Jumper: Remove a factory-installed T-T jumper resistor by cutting it with side-
cutting pliers
• Lockout Mode: ICM’s oil primary control will enter lockout mode when flame:
– Is sensed in valve-on delay period
– Is not established in ignition trial
– Is lost three times in a single heat call
– Is sensed during burner motor-off delay stage
• Four Diagnostic LED states:
– On: Signals the presence of flame
– Off: No flame present
– Two seconds on, two seconds off: Recycle
– ½ second on, ½ second off: Lockout
• Cad Cell Resistance:
· Check cad cell resistance without an ohmmeter by pressing and releasing the reset
button during run mode
· Flashing indicates resistance (see Table 3, Page 14)
• Valve-on Delay/Blower Motor-off Delay:
– Certain models have fixed or selective delays for valve open or blower motor off
– During these delays, safety circuits check for flame and will switch to lockout if
flame exists

5
Models:
ICM P/N
Lockout
Timing*
(seconds)
Valve-on
Delay
(seconds)
Burner
Motor-off Delay
(minutes)
Alarm
Contacts
Thermostat
JW5
Limit
JW1
ICM1511*
Factory Set
15, 30 or 45
Selectable
0 or 15
Selectable 0
or 0, 2, 4, 6 (b) YES NO NO
ICM1512* 15 0, 2, 4, 6 (b) or
0.5, 2, 4, or 8 OPTIONAL NO NO
ICM1513* 15 NONE NONE YES(a) YES
ICM1514* NONE NONE NONE YES YES
Notes:
• Factory default is 15 seconds.
• For 30 second safety timing, add “A” to the end of the ICM part number (i.e.: ICM1511A)
• For 45 second safety timing, add “B” to the end of the ICM part number (i.e.: ICM1511B)
Specications
Timing:
• Safe start check: 5 seconds (approximate)
• Valve-on delay: Model dependent; see chart above
• Burner motor-off delay: Model dependent; see chart above
• Lockout: 15, 30 or 45 seconds (factory-programmed)
• Recycle: 60 seconds (fixed)
• Ignition carryover: 10 seconds (fixed)
• DIP switch positions 1 and 2 are to set burner motor-off delay timings
• DIP switch position 3 is to enable or disable valve on delay timing
Table 1

6
Electrical Ratings:
Inputs:
• Voltage: 102 to 132 VAC, 120 VAC nominal
• Current: 100 mA plus burner motor, valve, and ignitor loads
• Frequency: 60 Hz.
Outputs:
Relay Contacts:
• Burner: 120 VAC, 10 full load amperes (FLA), 60 locked rotor amperes (LRA).
• Valve: 120 VAC, 1A.
• Ignitor: 120 VAC, 360 VA.
• Alarm: 30 VAC, 2A.
• Thermostat current available: 100 mA
Note: Reduce burner FLA rating by ignitor load. As an example, if the ignitor draws
3A (120 VAC, 360 VA), reduce burner motor FLA to 7A.
Typical Component Wire Color Code:
White: Neutral Orange: Blower/pump Violet: Valve
Black: Line Blue or Blue w/White Stripe: Ignitor Red: Limit
Note: The oil primary control is provided with ¼” (6 mm) quick disconnect terminals.
Environmental Ratings:
Operating Ambient Temperature: -40°F to +150°F (-40°C to +66°C)
Shipping Temperature: -20°F to +150°F (-29°C to +66°C)
Humidity: 90% relative humidity at 95°F (35°C), noncondensing.
Approvals:
Underwriters Laboratories Inc.: Recognized.
Canadian Underwriters Laboratories Inc.

7
Installation
When Installing This Product:
1. Carefully read these instructions. Failure to read and follow instructions may cause a
hazardous condition or may damage the product.
2. Check these instructions for product ratings to ensure the product is proper for
your intended application.
3. The ICM oil primary control should only be installed by trained, experienced
technicians.
4. Check for proper product operation by using these instructions after installation.
Warning! Electrical Shock Hazard!
• Can cause severe injury, death or property damage.
• Disconnect power supply before beginning installation to prevent electrical shock or
equipment damage. More than one disconnect may be involved.
Location:
1. Mount on a 4” X 4” j-box, directly on the main burner or inside the appliance cabinet.
When replacing a unit, mount the new oil primary in the same location as the
old control. Check to ensure the operating temperatures are within the ambient
temperature range (see Environmental Ratings, Page 6).
2. Before mounting the ICM oil primary control, set line voltage connections (see
Figures 3-6, Pages 17-20.
3. Splice lines with solderless connectors and be certain not to exceed load ratings
shown on the device label.
4. If needed, use the control as a template to mark and drill new mounting holes.
5. Mount the device using No. 6 screws.

8
Warning! Electrical Shock Hazard!
• Can cause severe injury, death or property damage.
• Disconnect power supply before beginning installation to prevent electrical shock or
equipment damage. More than one disconnect may be involved.
Wiring:
1. Make sure all wiring complies with local codes and ordinances.
2. Be certain line voltage wiring is properly connected.
3. Refer to the oil primary control label and appliance wiring diagram for color codes.
4. After mounting, check low voltage connections to the screw terminals.
5. Strip leads 3/8” (10 mm) and insert under terminal screw.
6. Connect thermostat leads to T-T if required by installation.
Switch Settings
Figure 2 and Table 2 on the following page provide the switch settings for the units.
Switch Settings & Delays
Figure 2: Switch settings for burner off-delay times
0 MIN.
0.5 MIN.
ICM1511
ICM1512
1 2
ON
2 MIN.
2 MIN.
1 2
ON
4 MIN.
4 MIN.
1 2
ON
6 MIN.
8 MIN.
1 2
ON
Burner Motor Off Delay Time:
(Shaded area is switch actuator position)
1
ENABLED
15 seconds
3
DISABLED
0 seconds
3
Valve On Delay Time:
0-15 sec.
1
• Select models may have
different timings
• Refer to device label

9
Delay Timings DIP Switch Setting
Valve-
On Delay
(seconds)
Burn Motor-Off Delay
(minutes) Valve on Delay Switch
ICM1511* ICM1512* S-1 S-2 ICM1511* ICM1512*
0 0 — x x OFF
b
15
0 0.5 OFF OFF ON
2 2 OFF ON
4 4 ON OFF
6 8 ON ON
Notes: (x) Does not matter.
(b) S-3 not provided on ICM1512* models.
Table 2

10
Testing
Warning!
• Fire or Explosion Hazard.
• Can cause severe injury, death or property damage.
• Make sure the combustion chamber is free of oil and/or oil vapor before starting
system.
Start System
1. Open hand valve in oil supply line.
2. Make sure system is powered. Check circuit breaker or fuse and close system
switch, if provided.
3. Set thermostat to call for heat.
4. Make sure burner lights and operates until call for heat ends.
5. Verify that burner turns off when thermostat call for heat is satisfied.

11
Check Safety Features
Safe Start
1. Place a jumper across cad cell terminals.
2. Follow procedure to turn on burner. Burner must not start, indicator light turns on
and control remains in Idle Mode.
Simulate Flame Failure:
1. Follow procedure to turn on burner.
2. Close hand valve in oil supply line.
3. Device enters recycle mode.
4. Device tries to restart system after approximately 60 seconds.
5. Safety switch locks out approximately in safety switch timing indicated on label.
Indicator light flashes 1/2 second on, 1/2 second off. Ignition and motor stop and oil
valve closes.
Simulate Ignition Failure:
1. Follow starting procedure to turn on burner, but do not open oil supply hand valve.
2. Observe that safety switch locks out approximately within safety switch timing as
indicated on the label. Indicator light flashes 1/2 second on, 1/2 second off. Ignition
and motor stop and oil valve closes.

12
Operation
The ICM Interrupted Ignition Oil Primary Control is a microprocessor-based control. The
indicator light provides diagnostic information for lockout, recycling and patented cad
cell status. There is a manual reset button to exit the lockout mode and enter the idle
mode (See Fig. 1, Page 1). Operation is as follows:
External Action Oil Primary Control Action:
Power applied to
control
Internal safety check conducted. If no light or flame is detected and all
internal conditions are correct, control enters Idle Mode.
Thermostat calls
for heat
(continued on
next page)
1. Shorts across T-T terminals (on a call for heat) in warm air system and/or
provides power to limit terminals in hydronic system. Networked systems
may receive a call for heat on network connections 1, 2, 3.
2. Safety Period (5 seconds) internal and external check for flame or light. If
flame or light is detected, control remains in the Idle Mode.
3. When flame or light is not present:
a. ICM1514* (if valve-on delay is enabled) will apply power to the burner
motor and ignitor.
b. ICM1511*, ICM1512*, ICM1513* (if valve-on delay is enabled) will apply
power to the burner motor and ignitor, enter/complete valve-on delay
period and then apply power to the valve.
4. Control enters Trial for Ignition period.
a. Monitors burner for flame.
b. When flame is not detected:
(1) Enters lockout mode (after lockout time of 15, 30, or 45 seconds).
(2) Shuts off valve, ignitor and burner motor.
(3) Flashes indicator light at 1/2 second on, 1/2 second off.
(4) Depress reset button to return to power-up sequence.
c. When flame is detected, Carry-Over period begins:

13
(continued from
previous page)
Thermostat calls
for heat
5. Control enters Ignition Carry-Over period (continues to spark for 10 to 30
seconds.
a. Turns on indicator light.
b. If flame is lost and lockout time has not expired, Oil Primary Control
returns to Trial for Ignition period.
c. If flame is lost and lockout time has expired, Oil Primary Control enters
Recycle Mode.
6. Carry-Over time expires; ignitor turns off.
7. Enters Run Mode:
a. Flame is monitored until call for heat ends or flame is lost. If flame is lost:
(1) Control enters Recycle Mode.
(2) Recycle time starts (60 seconds).
(3) Burner and valve are turned off.
(4) Indicator light flashes at 2 seconds on, 2 seconds off.
(5) Returns to Idle Mode at end of Recycle Mode.
Call for heat is
satisfied.
1. ICM1511*, ICM1514* (if burner motor-off delay is disabled):
a. Burner motor and oil valve shut off.
b. Indicator light turns off.
2. ICM1511*, ICM1512*, ICM1513* (if burner motor-off delay is enabled):
a. Oil valve shuts off.
b. Burner motor runs for selected burner motor-off delay time.
c. Burner motor turns off.
d. Device returns to Idle Mode.
Reset Button
pushed two times
without device
completing a call
for heat.
1. Oil Primary Control enters Restricted Mode.
2. Indicator light flashes and 1/2 second on, 1/2 second off.
3. Reset device by pressing and holding reset button for a minimum of 30
seconds.

14
Troubleshooting and Maintenance
Due to the potential hazard of line voltage, only a trained, experienced service
technician should preform the troubleshooting procedures. This control contains
no field-serviceable parts. Do not attempt to take it apart. Replace entire control if
operation is not as described.
To completely troubleshoot an oil burner installation, check the burner and oil primary
control for proper operation and condition. The indicator light on the oil primary control
provides lockout, recycle and cad cell indications as follows:
1. Flashing at 1/2 second on, 1/2 second off: system is locked out or in restricted mode.
2. Flashing at 2 seconds on, 2 seconds off: control is in recycle mode.
3. On: cad cell is sensing flame.
4. Off: cad cell is not sensing flame.
Cad Cell Resistance Check
For proper operation, it is important that the cad cell resistance is below 1600 ohms.
During a normal call for heat, once the control has entered the Run mode, press and
release the reset button. For equivalent cad cell resistance, reference Table 3 below:
Table 3
Flashes Resistance Ohms Flashes Resistance Ohms
1 Less than 400 3 >800, but <1600
2 >400, but <800 4 >1600, but <5000

15
Preliminary Steps
1. Check wiring connections and power supply.
2. Make sure power is on to controls.
3. Make sure limit control is closed.
4. Check contacts between ignitor and the electrodes.
5. Check the oil pump pressure.
6. Check the piping to the oil tank.
7. Check the oil nozzle, oil supply and oil filter.
Check Oil Primary Control
If the trouble is not in the burner or ignition hardware, check the oil primary control by
using the following equipment:
1. Screwdriver.
2. Voltmeter (0 to 150 VAC range).
3. Insulated jumper wire with both ends stripped.
WARNING: Electrical Shock Hazard. Can cause severe injury, death or property damage.
Troubleshoot with the system powered. Be careful to observe all precautions to
prevent electrical shock or equipment damage.

16
Troubleshooting Tips
Condition Check for:
Burner does not
start with call for
heat.
Check that the limit switches are closed and contacts clean.
Check for 120 VAC line voltage; If indicator light is on, the Cad cell
controller may be defective, sees external light, or connections are
shorted.
Burner starts, then
locks out on safety.
Check that limit switches are closed and contacts clean.
Check for proper line voltage.
Check to see if Cad cell or controller is seeing external light.
Try resetting oil primary control.
Verify that control is not in restricted mode.
Check spark ignitor.

17
Figure 3: Wiring ICM1511*, ICM1512* for typical oil-red boiler
Burner
Motor
Ignitor
Valve
Burner
Motor
Ignitor
Valve
L1
L2
C1
C2
L1
L2
3
3
3
1
4
CADŁ
Cell
CADŁ
Cell
Junction Box
2
To
Remote
Alarm
Circuit
Alarm
1
2
3
T
T
W
R
Thermostat
Circulation
Pump
2Optional feature on select models
3Refer to device label for wire color code
1Power supply. Provides disconnect means
and overload protection as required.
4Valve is optional on specific models
Wiring Diagrams

18
Figure 4: Typical wiring diagram for line voltage, and for an oil thermostat and
ICM1513*, ICM1514* for an oil burner system.
Burner
Motor
Ignitor
L1
L2
3
3
4
CADŁ
Cell
CADŁ
Cell
Junction Box
2
To
Remote
Alarm
Circuit
Alarm
1
2
3
T
T
L1
L2
1
Ignitor
Burner
Motor
Valve
HOT
Limit
Line Voltage
Thermostat
5
2Optional feature on select models
3Refer to device label for wire color code
1Power supply. Provides disconnect means
and overload protection as required.
4Valve is optional on specific models
5The first thermostat terminal
Jumper