Unifire SUPERVISOR I User manual

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SUPERVISOR I
Installation and Operation Manual

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Contents
1HOW TO USE THIS MANUAL .................................................................................................................. 3
2LIMITED PRODUCT WARRANTY ............................................................................................................. 4
3SERVICE SUPPORT AND RETURNS.......................................................................................................... 5
4GENERAL PRODUCT INFORMATION....................................................................................................... 6
5SPECIFICATION AND RATINGS................................................................................................................ 7
6FACTORY CONFIGURATION.................................................................................................................... 8
6.1 PILOT MODE OF OPERATION [CONTINUOUS/INTERRUPTED].................................................................. 8
6.2 DIRECT IGNITION [ENABLE/DISABLE] ............................................................................................... 8
6.3 PURGE DURATION [0:1:1800SECONDS]........................................................................................... 8
6.4 PILOT FLAME DETECTION SOURCE [TC/FR/DI3] ................................................................................ 8
6.5 PILOT TRIAL FOR IGNITION DURATION (PTFI) [0:1:15 SECONDS] ........................................................... 8
6.6 PILOT STABILIZATION PERIOD [0:1:10 SECONDS]................................................................................ 8
6.7 MAIN FLAME DETECTION SOURCE [TC/FR/DI3]................................................................................ 8
6.8 MAIN TRIAL FOR IGNITION PERIOD [0:1:15SECONDS] ......................................................................... 9
6.9 MAIN FLAME STABILIZATION PERIOD [0:1:10SECONDS] ...................................................................... 9
6.10 PILOT FLAME FAILURE RESPONSE TIME [0:1:4SECONDS] ...................................................................... 9
6.11 MAIN FLAME FAILURE RESPONSE TIME [0:1:4 SECONDS] ..................................................................... 9
6.12 PILOT RECYCLE/RETRIAL NUMBER [0-255] ....................................................................................... 9
6.13 PILOT INTERPURGE DURATION [0:1:1800SECONDS] ........................................................................... 9
6.14 MAIN RECYCLE/RETRIAL NUMBER [0-255]....................................................................................... 9
6.15 MAIN INTERPURGE DURATION [0:1:1800SECONDS]........................................................................... 9
6.16 THERMOCOUPLE HIGH TEMPERATURE TRIP ENABLE/DISABLE .............................................................. 10
6.17 THERMOCOUPLE SETPOINT [0:1:1200°C] ...................................................................................... 10
6.18 4-20MAANALOGUE INPUT ENABLE/DISABLE .................................................................................. 10
6.19 4-20MAPRESSURE TRANSMITTER ENABLE/DISABLE ......................................................................... 10
6.20 4-20MATRANSMITTER HIGH HIGH/LOW LOW TRIP SETPOINTS [0:0.1:20MA]...................................... 10
6.21 LOW POWER OUTPUT SETTINGS.................................................................................................... 10
6.22 END USER EQUIPMENT TAG ......................................................................................................... 10
7INSTALLATION...................................................................................................................................... 11
7.1 FUSES...................................................................................................................................... 14
8TYPICAL WIRING................................................................................................................................... 15
9SYSTEM OPERATION ............................................................................................................................ 16
9.1 TYPICAL STARTUP FOR CONTINUOUS PILOT (OR MAIN DIRECT IGNITION) ............................................... 16
9.2 INTERRUPTED PILOT ................................................................................................................... 17
9.3 LOCKOUT ................................................................................................................................. 19
10 TROUBLESHOOTING............................................................................................................................. 21

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1How to Use This Manual
The following symbols appear throughout Unifire installation and operation manuals.
HAZARD
A specific hazard is brought to the attention of the reader. Failure to observe these instructions may
result in injury or other high severity consequence.
CAUTION
Important information that when not followed so may result in premature failure of the product or
system malfunction.
INFORMATION
Important details relating to correct function and reliable operation of the product.

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2Limited Product Warranty
Unifire warranty covers the product against defects in workmanship and materials, only if the product is
installed and used according to the installation instructions. The warranty is valid for a period of twelve
(12) months starting from the date of purchase.
At the sole discretion of Unifire; the liability of Unifire shall be limited to the costs of the parts to be
repaired in the defective product or to the exchange of the defective product for a replacement product.
Unifire is not responsible, in contract, tort or strict product liability for any losses, damages, costs,
inconveniences and expenses, direct or indirect arising from the use of the product, or from defects in
workmanship or materials.
This warranty applies only to those products returned to Unifire during the warranty period.
This warranty does not cover the costs of the parts or labor incurred for the removal and transportation
of the defective product, or the reinstallation of the repaired or replaced product.
This warranty does not apply if the product has been damaged due to negligence by person, accident,
fire, Act of God, abuse or misuse; or has been damaged by modification, alterations or attachments
made subsequent to the purchase which have not been authorized by Unifire; or if the product was not
installed in compliance with Unifire instructions and the local codes and standards.

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3Service Support and Returns
For service and support please contact the Unifire support team using your preferred method below.
Please include the serial number on the label of the Supervisor I module in your communications to
allow us to help you as quickly as possible.
Telephone:
[phone]
Email:
[email protected]
Returns:
Unifire (A division of CSI Group)
207 –Discovery Way
Squamish
V6B 0E5
BC
Canada

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4General Product Information
SUPERVISOR I provides all necessary functions for the safe start-up and shutdown of industrial,
natural draft gas fired appliances. Approved to the latest IEC/CSA 60730-2-5 standard the control
module provides factory configured purge, pilot trial for ignition and main trial for ignition
periods, multiple recycle/retrials on flameout, varied flame safeguard options (Ionization rod,
UV/IR scanner, thermocouple), interrupted pilot and direct main ignition options. 24VDC power
supply and low power consumption allows for remote off-the-grid field operation with
aftermarket solar panels or thermoelectric power sources. The module is approved and ready for
use in Class I Zone/Div 2 Hazardous locations.
Designed to be safe, simple and flexible; the module allows the end user to integrate BMS
functionality to natural draft gas fired appliances; quickly, easily and safely. The design of the
module allows for process trips to be wired in series to a permissive input that will prevent
startup of the burners until all permissive inputs are proven. During light-off and once the
burner(s) are in operation the permissive inputs continue to provide a trip mechanism for safe
shutdown of the appliance. With all permissive inputs proven a factory configured timed purge is
invoked either automatically via remote commands or by pressing the front mounted start/reset
button. A completed purge is followed with trial for ignition on either the pilot burner or, in the
case of direct ignition, main burner. On completion of the trial for ignition the module will
energize two status outputs that can be connected to a controlling PLC or direct to the solenoids
of a main burner fuel train.
Beyond the basic startup and shutdown of typical appliances SUPERVISOR I is extended to
include multiple options for flame safeguard. Conventional flame (Ionization) rods are
supplemented with options for Thermocouple based flame detection and use of third party
UV/IR flame scanners. Other options during runtime include configurations for interrupted pilot
ignition and recycles or retrials of ignition on a loss of flame.
The complete sequence of operation and control is clearly indicated on the front panel with 4
simple LED’s and started automatically or manually via the front mounted START/RESET button.
CAUTION
Prior to powering up the SUPERVISOR I module please ensure that all safety and code
compliance information within this manual is observed.

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5Specification and Ratings
Enclosure
Polycarbonate (10% Fiberglass reinforced cover)
Hinged Door
IP67, NEMA 4X UL-508
12.142" L x 7.874" W x 5.906” H
(308.40mm x 200.00mm x 150.00mm)
Flammability UL94-V0
Min Operating Temperature
-45°C
Max Operating Temperature
60°C
Power Supply
24VDC
Quiescent Current
TBD
Inputs
AI
TC
DI1
DI2
DI3
DO2+
DO3+
4-20mA Analogue Process Input
Thermocouple Type K -50°C –1200°C
12-24VDC (Process Permissive)
12-24VDC (Start/Reset)
12-24VDC (Flame Scanner)
0-24VDC Source power for DO2
0-24VDC Source power for DO3
Outputs
DO1
DO2
DO3
IGN
FR
24VDC, 3A (Pilot Solenoid)
Switched to DO2+, 3A (Status/Main Solenoid 1)
Switched to DO3+, 3A (Status/Main Solenoid 2)
24VDC, 3A
150VAC, mA
Communications
COMM1±
COMM2±
(Reserved)
(Reserved)
Approvals
IEC/CSA 60730-2-5
Class I Zone/Div 2 Ex ‘nA’
NEMA 4X, IP67 (Enclosure)
cULus File #######

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6Factory Configuration
The SUPERVISOR I module is shipped factory configured for the end-user application. Configuration
parameters are detailed below. The Unifire engineering team will assist in the correct configuration of
the module for the end user appliance. The flexibility offered by the module configuration permits the
use of SUPERVISOR I on numerous end-user industrial fired appliances.
6.1 Pilot Mode of Operation [Continuous/Interrupted]
Both interrupted and continuous pilot is supported. Interrupted pilot will de-energize the DO1 output on
detection of a main flame and maintain the de-energized state if the main trial for ignition is successful.
6.2 Direct Ignition [Enable/Disable]
Using only the DO1 output the system can support direct ignition of the main burner. In this
configuration the pilot trial for ignition timings will adopt the settings for the main burner and the main
flame detection source shall be used. When configured for direct ignition the pilot mode of operation is
ignored.
6.3 Purge Duration [0:1:1800seconds]
Prior to commencing the trial for ignition a preconfigured purge shall be executed during which time all
outputs are maintained in the de-energized state. A maximum purge time of 30 minutes is supported.
6.4 Pilot Flame Detection Source [TC/FR/DI3]
If not configured for direct ignition the input to use for the pilot flame safeguard is selected from the
TC/thermocouple, FR/Flame Rod or DI3/Flame Scanner inputs.
6.5 Pilot Trial for Ignition Duration (PTFI) [0:1:15 seconds]
Up to 15 seconds may be configured for pilot trial for ignition. This time should be selected to meet the
requirements of the governing codes in the end users jurisdiction. On completion of purge the IGN
output shall be energized for a period of time up to a maximum of the PTFI. During this time the pilot
flame detection source (or main if configured for direct ignition) shall be monitored. The IGN output
shall de-energize on detection of a flame to allow detection of flame stability and energizing of the
status (DO2, DO3) outputs.
6.6 Pilot Stabilization Period [0:1:10 seconds]
On detection of a flame an additional timer is ran to ensure pilot flame stability prior to energizing
status outputs DO2 and DO3.
6.7 Main Flame Detection Source [TC/FR/DI3]
If configured for Interrupted pilot or direct ignition the source of the main flame detection must be
configured to use either the TC/Thermocouple, FR/Flame Rod or DI3/Flame Scanner input. For systems
configured with a continuous pilot a main flame detection source may also be configured. When
configured a main trial for ignition period is executed during which time the main flame detection
source must be proven. For direct ignition systems DO1 will de-energize when main flame is lost, on
continuous and interrupted systems the DO2 and DO3 outputs will de-energize when the main flame is
lost.

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6.8 Main Trial for Ignition Period [0:1:15seconds]
Up to 15 seconds may be configured for main trial for ignition. This time should be selected to meet the
requirements of the governing codes in the end users jurisdiction. This time will be used in direct
ignition mode, interrupted pilot and continuous pilot if a main flame detection source is configured.
During MTFI the main flame must be proven. If not proven, direct ignition systems shall have all outputs
de-energized, interrupted and continuous pilot systems shall have DO2 and DO3 de-energized. If the
system is not configured to retrial/recycle this results in lock out requiring a reset.
6.9 Main Flame Stabilization Period [0:1:10seconds]
During MTFI, on detection of a flame the main flame stabilizastion timer shall be executed. On expiry of
this timer, if the flame remains proven the MTFI is successful.
6.10 Pilot Flame Failure Response Time [0:1:4seconds]
On loss of pilot flame a flame failure response timer may be configured during which the IGN output
shall re-energize to recover the pilot flame. If successful the DO2 and DO3 status outputs remain
energized, if not successful the module will adopt the lock-out state unless recycle/retrials are
configured.
6.11 Main Flame Failure Response Time [0:1:4 seconds]
On loss of main flame a flame failure response timer may be configured during which the IGN output
shall re-energize to recover the main flame. If successful the DO2 and DO3 status outputs remain
energized, if not successful the module will adopt the lock-out state unless recycle/retrials are
configured.
6.12 Pilot Recycle/Retrial Number [0-255]
If permitted by the governing codes of the end-user jurisdiction the module may be configured to
recycle/retry for ignition on a loss of flame. If configured all outputs shall be de-energized on loss of
flame and interpurge timer executed prior to re-attempting ignition. If flame is successfully recovered
the recycle/retrial counts reset. If not successful the number of retrials/recycles executed shall
increment up to the configured maximum before adopting the lock out state.
6.13 Pilot Interpurge Duration [0:1:1800seconds]
Pilot interpurge is executed during recycle/retrial for ignition of the pilot flame (or main during direct
ignition). All outputs are de-energized to allow the purging of combustible mixture from the appliance.
6.14 Main Recycle/Retrial Number [0-255]
If permitted by the governing codes of the end-user jurisdiction the module may be configured to
recycle/retry for ignition of the main on a loss of main flame. If configured DO2 and DO3 outputs shall
be de-energized on loss of flame and the main interpurge timer executed prior to re-attempting ignition.
If flame is successfully recovered the recycle/retrial counts reset. If not successful the number of
retrials/recycles executed shall increment up to the configured maximum before adopting the lock out
state. This option is valid on continuous or interrupted pilot systems where a main flame detection
source has been configured.
6.15 Main Interpurge Duration [0:1:1800seconds]
Main interpurge is executed during recycle/retrial for ignition of the main flame DO2 and DO3 outputs
are de-energized to allow the purging of combustible mixture from the appliance.

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6.16 Thermocouple High Temperature Trip Enable/Disable
The TC input can be used as a high temperature trip on the appliance. For example bath heaters may use
a thermocouple for a high bath temperature trip or it may be used for a stack temperature trip. The TC
input can only be used with a Type K thermocouple. If set as a high temperature trip the TC input cannot
be used as a flame detection source.
6.17 Thermocouple Setpoint [0:1:1200°C]
The thermocouple setpoint is either set to the process temperature at which high temperature trip is to
be detected or to a flame temperature when used as a flame detection source.
6.18 4-20mA Analogue Input Enable/Disable
The AI input can be configured as a process transmitter trip. If enabled the configured high and low trip
set points shall result in de-energizing of all outputs and the module will enter the lock-out state. The
transmitter scaling/transfer function will be required for factory configuration.
6.19 4-20mA Pressure Transmitter Enable/Disable
The AI input may be used as a fuel pressure transmitter. When enabled the transmitter high and low trip
setpoints shall be monitored during light-off. Typically the transmitter will be located between the
double block valves of the main valve train. The trip is automatically bypassed until 2 seconds after the
DO2 and DO3 solenoids are energized. Then high or low pressure conditions shall result in de-energizing
of all outputs and the module will enter the lock-out state.
6.20 4-20mA Transmitter High High/Low Low Trip Setpoints [0:0.1:20mA]
When the AI input is enabled for use the High and Low trip setpoints must be configured. Low may be
set artificially high and vice versa to deliver only Low or High process trips respectively.
6.21 Low Power Output Settings
The output drivers DO1, DO2 and DO3 are possible to configure for PWM operation. If required the duty
cycle and frequency of the appliance valves/solenoids is configured individually for each output. For
solenoids that required a peak and hold drive waveform the pull-in or peak duration is also configured.
Duty Cycle 0:1:100%
Frequency 0:1:500MHz
Pull-in/Peak Period 0:1:4000ms
6.22 End User Equipment Tag
A twelve character alphanumeric equipment tag may be pre-programmed in the device.

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7Installation
The SUPERVISOR I module is shipped in a NEMA 4X fiberglass enclosure. Wall mounting kits are available
in three different sizes complete with 4 M4x0.7x8mm machine screws. It is recommended to use one of
the available mounting kits to prevent damage to the enclosure.
Figure 1 - Dimensions
Mounting Kit
#-########
Small Brackets
#-########
Medium Brackets
#-########
Large Brackets
Unless requested at the point of ordering, the module shall not come pre-drilled for field connections.
The end-user should drill or punch entries as required in the sides, bottom or top of the enclosure and
use cable glands or conduit connections that meet the requirements of the appliance area classification.
INFORMATION
Zone 2 Area classifications require the use of cable glands that meet the flameproof Ex ‘d’
requirements of IEC 60079-0.

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Care should be taken to avoid damage to the electronics installed inside the enclosure. Removal of the
electronics is recommended prior to drilling. This is easily achieved by unscrewing the 4 x M4 6mm
Phillips head screws that fasten the baseplate to the enclosure body.
CAUTION
The internal electronics are sensitive to static discharge. Care must be taken when handling the
electronics to avoid exposure to static. As a minimum make contact with a ground connection prior to
touching the electronics.
Temperature Switch (Optional)
1
M4 Baseplate Mounting Bolt (x4)
2
Field Interface Board
3
Main Control Board
4
Baseplate
5
NEMA 4X Enclosure
6
1
2
3
4
5
6
7
Fuses (Located on underside)
7
Figure 2 - Electronics Assembly

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The module includes a field interface board to which all field connections are made. Connections
available are as follows.
Connection Terminal ID Function Specification
1 24V_1 24VDC Input
2 24V_2 24VDC Input
3 0V_1 0VDC Input
4 0V_2 0VDC Input
X801
X802
1 AI+ 4-20mA +ve
2 AI- 4-20mA -ve
3 SHLD 4-20mA Shield
1 TC+ Type K +
2 TC- Type K -
3 SHLD Type K Shield
1 COMM1+
2 COMM1-
3 SHLD
1 24VDC+ 24VDC Source
2 DI1 Process switch input
1 24VDC+ 24VDC Source
2 DI2 Start/Reset Input
1 n/a
2 n/a
1 24VDC+ 24VDC Source
2 DI3 Flame Scanner Input
1 COMM2+
2 COMM2-
3 SHLD
1 DO1 Pilot Solenoid Drive
2 COM Pilot Solenoid Return
1 24VDC+ 24VDC Source
2 DO2+ DO2 Source Power
3 DO2 DO2 Status Output
4 COM DO2 Status Return
1 IGN Ignition Drive
2 COM Ignition Return
1 24VDC+ 24VDC Source
2 DO3+ DO3 Source Power
3 DO3+ DO3 Status Output
4 COM DO3 Status Return
1FR Flame Rod Signal
2 BRNGND Burner Ground
1 GND1 Appliance Ground 1
2 GND2 Appliance Ground 2
1 GND3 Appliance Ground 3
2 GND4 Appliance Ground 4
For connecting to appliance ground. Separated
from the 0VDC of the module.
Reserved
Reserved
Reserved
Reserved
Reserved
Discrete 24VDC Input for connection to process
trips. Max 12-24VDC 3A.
Discrete 24VDC Input for START/RESET command.
Max 12-24VDC 3A.
Discrete 24VDC Input for Flame Scanner status. Max
12-24VDC 3A.
SW800
Factory Wired
X812
X815
X816
X814
X807
X808
X809
X810
X811
Output Driver for Pilot Solenoid (or Main in direct
ignition mode). 24VDC @ 3A or low power mode.
Output Driver for status on proven flame. 24VDC @
3A. DO2+ can be jumpered to board 24VDC+ source
or externally sourced.
24VDC 3A Ignition output for connection to ignition
transformer.
Output Driver for status on proven flame. 24VDC @
3A. DO2+ can be jumpered to board 24VDC+ source
or externally sourced.
150V Flame rod signal. Connect to flame ionization
rod, connect BRNGND to burner.
Terminals are connected on the board. Providing
redundant 24VDC connection point.
Terminals are connected on the board to provide
redundant 0VDC connection point.
Factory wired
Factory wired
Reserved
4-20mA input for connection to process transmitter
or gas pressure transmitter.
24VDC Loop power.
Type K Thermocouple Input
X813
X800
X803
X804
X805
X806
Figure 4 - Field Interface Board Connections

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7.1 Fuses
Fuses are provided on connections X808, X809, X810, X811 and X800. Fuses are located on the
underside of the field IO board.
Connection
Fuse
Rating
X808
F802
2.5A 300V
X809
F803
2.5A 300V
X810
F804
2.5A 300V
X811
F805
2.5A 300V
X800
F801
10A 300V
Integrity of fuses can be checked with a multi-meter without removing the boards from the enclosure.
Figure 5 - Fuse Test Points
To replace fuses it is recommended that the electronics assembly is removed from the enclosure in the
manner described in the preceding section.
Once removed, release the field IO board from the main board by removing the 4 screws and PCB
standoffs located in the corners of the board. Carefully rotate the field IO board forwards to access the
fuses. Replace with radial board mount fuses of equivalent rating. Reinstall the electronics assembly
before powering up.
Fuse Test Points

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8Typical Wiring
Temporary wiring diagram to facilitate approval tests. Application specific P&ID to be entered prior to
product launch.
Load box
Load box
field jumper
0VDC
FR
BRN
IGN
COM
DO2+
DO2
COM
DO3+
DO3
COM
DO1
COM
COMM1+
COMM1-
COM
COMM2+
COMM2-
COM
DI1
DI2
DI3
24VDC+
TC+
TC-
COM
24VDC+ (max 24mA)
AI
COM
reserved
24VDC+
24VDC+
graphic overlay
POWER
STANDBY/PURGE
FLAME
FAULT
CTLI
Burner Management
System
START/RESET
XV2
(Main Downstream)
XV1
(Main Upstream)
XV0
(Pilot)
Internal 24VDC Rail
24VDC+ 0VDC
S3
S4
S5
field jumper
RS485 Terminal
Datalogging
some tests
TX
RX
Flame Simulator

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9System Operation
9.1 Typical Startup for Continuous Pilot (or Main Direct Ignition)
1. Power Up, verify that POWER LED is ON
and after a short pause the
STANDBY/PURGE LED is ON and the
Flame Rod (FR) output is energized
enabling flame detection. FR remains
on at all times.
Outputs:
FR
IGN
DO1
DO2
DO3
2. If the FLAME LED is ON all requests to
start the system will be ignored until
the flame is removed.
FR
IGN
DO1
DO2
DO3
3. If the FAULT LED is ON the system is in
lockout, presss START/RESET to reset
the system or cycle the power.
FR
IGN
DO1
DO2
DO3
4. With FAULT and FLAME OFF the system
can be started by pressing the
START/RESET button. The PURGE
commences with the STANDBY/PURGE
LED flashing.
FR
IGN
DO1
DO2
DO3
5. Press START/RESET at any time to reset
the system. STANDBY/PURGE stops
flashing.
FR
IGN
DO1
DO2
DO3

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6. On conclusion of the PURGE the
STANDBY/PURGE LED switches OFF and
the trial for ignition begins. The FLAME
LED flashes. The Ignition (IGN) output
and DO1 driver are energized.
FR
IGN
DO1
DO2
DO3
7. Once a flame is detected the FLAME
LED is held ON and the Ignition (IGN)
output is de-energized.
FR
IGN
DO1
DO2
DO3
8. On expiry of the flame stable timer the
DO2 and DO3 outputs are Energized.
The system now monitors for flame
continuously until STANDBY/RESET is
pressed or power is removed.
FR
IGN
DO1
DO2
DO3
9.2 Interrupted Pilot
1. With FAULT and FLAME OFF the system
can be started by pressing the
START/RESET button. The PURGE
commences with the STANDBY/PURGE
LED flashing.
FR
IGN
DO1
DO2
DO3
2. Press START/RESET at any time to reset
the system. STANDBY/PURGE stops
flashing.
FR
IGN
DO1
DO2
DO3

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3. On conclusion of the PURGE the
STANDBY/PURGE LED switches OFF and
the trial for ignition begins. The FLAME
LED flashes. The Ignition (IGN) output
and DO1 driver are energized.
FR
IGN
DO1
DO2
DO3
4. Once a flame is detected the FLAME
LED is held ON and the Ignition (IGN)
output is de-energized.
FR
IGN
DO1
DO2
DO3
5. On expiry of the flame stable timer the
DO2 and DO3 outputs are Energized.
FR
IGN
DO1
DO2
DO3
6. 2 Seconds later the DO1 output is de-
energized and flame monitoring
continues on the Main flame.
FR
IGN
DO1
DO2
DO3
7. If the flame is lost the DO1 and IGN
outputs re-energize as part of the flame
failure response system. A failure to
recover the flame results in retrial or
lockout.
FR
IGN
DO1
DO2
DO3

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9.3 Lockout
Any failure of the ignition sequence, process trips or flame failure while running results in volatile
lockout of the system. The user is required to press the START/RESET button to reset the system.
Power-cycling the module also resets the system.
In the lock out state all outputs are de-energized except for the Flame Rod (FR). The FAULT LED will
flash a number of times that allows identification of the fault grouping. A 3 second pause occurs once
the code is flashed. This sequence of flashing the code and pausing is repeated until the system is reset.
FR
IGN
DO1
DO2
DO3
If reset of the unit does not clear the fault contact [email protected] for further investigation.

0014_Installation_Operation_Manual
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Table 1 - Fault Codes
Code
Fault Group
Description
1
MCU
Critical failure of the MCU.
2
Flame Failure (Pilot)
Loss of flame or failure to light
pilot flame (main when running
direct ignition).
3
Flame Failure (Main)
When MAIN flame safeguard is
configured this indicates a loss of
main flame.
4
DI1 (Process Input) Trip
DI1 process switch inputs trip
system.
5
TC Trip
TC Thermocouple input trip
(TAHH).
6
AI PALL
Low Pressure Trip on the AI
Input.
7
AI PAHH
High Pressure Trip on the AI
Input.
8
DI Input failure
Internal hardware/software
diagnostic indicates failure of
DI1, DI, DI3.
9
DO Output failure
Internal hardware/software
diagnostic indicates failure of
DO1, DO2, DO3.
10
AI BAD failure
Internal hardware/software
diagnostic indicates failure of AI
input.
11
TC BAD failure
Internal hardware/software
diagnostic indicates failure of TC
input.
12
IGN Output failure
Internal hardware/software
diagnostic indicates failure of
IGN output.
13
FR Output failure
Internal hardware/software
diagnostic indicates failure of FR
output.