Norbec IM4 User manual

│OPERATING INSTRUCTIONS MODULE IM4
97, rue de Vaudreuil Boucherville (Quebec) J4B 1K7 Canada T : 1 877 667-2321 | NORBEC.COM
Date of release : August 2023
1
97, rue de Vaudreuil,
Boucherville (Québec) J4B 1K7
Phone: [phone] Fax: [phone]
Toll-free: 1 877 667-2321
** IMPORTANT **
PLEASE READ PRIOR TO
INSTALLATION AND START UP

│OPERATING INSTRUCTIONS MODULE IM4
97, rue de Vaudreuil Boucherville (Quebec) J4B 1K7 Canada T : 1 877 667-2321 | NORBEC.COM
Date of release : August 2023
2
Table of Content
1 Operating and Configuring Instructions.....................................................................................................3
2 Description for Each Feature .....................................................................................................................3
2.1 Temperature Monitoring and Display................................................................................................3
2.2 Lighting Control..................................................................................................................................3
2.3 Temperature Alarms..........................................................................................................................3
2.4 Door Open Alarm ...............................................................................................................................3
2.5 Panic Alarm ........................................................................................................................................4
2.6 Muting an Alarm ................................................................................................................................4
2.7 Battery Backup...................................................................................................................................4
2.8 Three-Way Switch for Lighting...........................................................................................................4
3 Options.......................................................................................................................................................4
3.1 Fan Failure Alarm...............................................................................................................................4
4 Alarm Message Descriptions......................................................................................................................5
4.1 Silencing Buzzer .................................................................................................................................5
5 Display Variables........................................................................................................................................6
6 Parameters Setting.....................................................................................................................................6
7 Parameters Description .............................................................................................................................7
APPENDIX 1. Proximity Sensor .....................................................................Error! Bookmark not defined.
APPENDIX 2. Installation step: IM4 keyboard...........................................................................................13
APPENDIX 3. Installation step: Panic Button and temperature sensor.....................................................19
APPENDIX 4. Wiring diagram Module IM4................................................................................................21
APPENDIX 5. Wiring diagram Module IM4 –Remote mounted ...............................................................22
APPENDIX 6. Wiring Diagram Module IM4 –Surface mounted................................................................23
APPENDIX 7. IM4 probe installation guide................................................................................................25

│OPERATING INSTRUCTIONS MODULE IM4
97, rue de Vaudreuil Boucherville (Quebec) J4B 1K7 Canada T : 1 877 667-2321 | NORBEC.COM
Date of release : August 2023
3
1Operating and Configuring Instructions
1. Up
2. Down
3. Left
4. Right
5. Enter
6. Back
7. Mute Button
2Description for Each Feature
2.1 Temperature Monitoring and Display
The unit displays the temperature in degrees
Celsius (°C) [adjustable, see Parameter
Descriptions].
Should one or more alarms be present, the display
will show the alarms first. If there are no active
alarm, the screen displays only the variables.
2.2 Lighting Control
The lighting is controlled by detecting the opening
of the door, which will turn the lights ON and the
closing door will initiate a 5-minute countdown
[adjustable, see Parameter Descriptions]; 30
seconds before the end of the delay, the lights will
blink to indicate that the lights are about to turn
OFF. This is to warn anyone inside to move to the
exit door before the lights go OFF.
2.3 Temperature Alarms
Those alarms are activated 45 minutes
[adjustable, see Parameter Descriptions] after
reaching the pre-recorded High and Low
temperature levels. An audible alarm (about 95
dB) from the keypad will then occur. The display
will show the message HIGH MONITOR TEMP2
ALARM or LOW MONITOR TEMP2 ALARM, [see
Alarm Message Descriptions]. The dry contact
(normally closed) from the alarm relay will
activate the external alarm signal (low voltage).
The High and Low temperature alarm settings and
the activation delay can be modified in the
parameter menu.
2.4 Door Open Alarm
If the door remains open for more than 15
minutes [adjustable, see Parameter Descriptions],
this alarm is triggered and an audible alarm from
the keypad will occur. The display will show the
message DOOR OPEN ALARM [refer to Alarm
Message Descriptions]. The dry contact (normally
closed) from the alarm relay will activate the
external alarm signal (low voltage).

│OPERATING INSTRUCTIONS MODULE IM4
97, rue de Vaudreuil Boucherville (Quebec) J4B 1K7 Canada T : 1 877 667-2321 | NORBEC.COM
Date of release : August 2023
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2.5 Panic Alarm
This alarm can be triggered when the backlit push
button is pressed and held, located inside, near
the door opening. When pressing this button, the
lights will turn ON and an audible alarm from the
keypad will occur and the dry contact (normally
closed) from the alarm relay will activate the
external alarm signal (low voltage). The display
will also show the message HELP. Once this alarm
is triggered, the mute button will not work. The
push button must be pressed and held for 3
seconds to deactivate the alarm.
2.6 Muting an Alarm
Pressing the ''Silent'' button on the keyboard
during an alarm will mute the audible signal but
the associated alarm message will remain until the
alarm condition disappears.
2.7 Battery Backup
The 9-Volt battery holder is located inside the
controller. In normalcondition, this battery should
maintain the temperature display and the alarm
messages in operation during power outages. The
dry contact (normally closed) from the alarm relay
will activate the external alarm signal (low
voltage).
The rechargeable battery is positioned upside
down in the base. It is necessary to reposition it
as shown in the diagram below during the first
on-site installation.
1. Switch off the module power supply.
2. Unscrew the screws holding the keyboard.
3. Lift the keyboard to access the back of the
module.
4. Install the battery.
2.8 Three-Way Switch for Lighting
This option allows controlling lighting through two
different doors in automatic mode. You must refer
to the IM4 wiring diagrams for the proper
electrical connection.
3Options
3.1 Fan Failure Alarm
When a ventilation system circulates air in
concealed spaces around the exterior of walk-in
cold rooms, optional sensors can be supplied to
monitor the presence of air flow on each blower.
With this option, if airflow stops, the system
triggers an audible alarm from the keyboard, the
dry contact (normally closed) from the alarm relay
will activate the external alarm signal (low
voltage) and the display will show the message
EXT ALARM alternating with the actual
temperature.
3.2 Dry contact
The dry contact links the IM4 module to an
external alarm system trough a wire. A signal is
sent to the external alarm when an alarm from the
IM4 module is activated.

│OPERATING INSTRUCTIONS MODULE IM4
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Date of release : August 2023
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4Alarm Message Descriptions
Use the and buttons to view the active alarms.
Scrolling
Display
Lights
Description
Parameter
Value
MONITOR
TEMP2
SENSOR
The temperature sensor is
shorted.
AUX2
SWITCH
STATE
OPEN
MONITOR
TEMP2
HIGH
ALARM
The temperature is above
High temp set point for a
period than the time set
point.
MON TMP2
HI ALRM
Cooler: 43°F / 6°C
Freezer: 10°F / -12°C
MON TEMP2
AL DLY
45 minutes
MONITOR
TEMP2
LOW ALARM
The temperature is lower
Low temp set point for a
period than the time set
point.
MON TMP2
LO ALRM
Cooler: 32°F / 0°C
Freezer: -13°F / -25°C
MON TEMP2
AL DLY
45 minutes
DOOR OPEN
ALARM
The door was left open
longer than the delay.
DOOR
ALARM
DELAY
15 minutes
T3
EXTERNAL
ALARM
Alarm for fan Failure
Novaflow.
AUX3
FUNCTION
Closed, when the fan is
running.
HELP
The panic button is
activated.
The push button must
be pressed and held for
3 seconds to deactivate
the alarm.
4.1 Silencing Buzzer
Once the alarm signal is detected, the buzzer can be muted by pressing the mute button . The alarm
message and the dry contact (normally closed) from the alarm relay will activate the external alarm signal
(low voltage) will be displayed until the alarm condition is reset.

│OPERATING INSTRUCTIONS MODULE IM4
97, rue de Vaudreuil Boucherville (Quebec) J4B 1K7 Canada T : 1 877 667-2321 | NORBEC.COM
Date of release : August 2023
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5Display Variables
If there is no alarm active, only the variables will be displayed. Use the and buttons to view them.
Variables
Description
TEMP 2
The range is -87.7°F to 183.0°F/ -66.1 à 83.8 °C.
If there is a sensor failure, value will read 888.8.
DOOR STATE
‘’DOOR CLOSED’’ if reads that door is closed.
‘’DOOR OPEN’’ if reads that door is open.
T3 NO EXTERNAL ALARM
The Novaflow fan works normally.
6Parameters Setting
1. Enter the Programming Mode by pressing the & and holding for 3 seconds.
The display will show AUX 1 FUNCTION and the green and yellow LED lights will start blinking.
2. Use or to scroll through the different configuration parameters.
Press to display the current value of the parameter.
3. Press and hold for 3 seconds to change the value.
The yellow and red LEDs will start blinking and the parameter can be adjusted.
Use or to scroll through the options.
When the value is a number, a digit starts blinking. Use or to change the value of the digit,
use or to move to the next digit.
4. Press and hold for 3 seconds to save the change.
5. Press to return to the Programming Mode.
Repeat steps 2 to 5 to change additional parameter.
Press 3 times to return to the default display.

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Date of release : August 2023
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7Parameters Description
Message
MIN
VALUE
MAX
VALUE
NORBEC
DEFAULT
VALUE
DESCRIPTION
AUX 1 FUNCTION*
DISABLED
EXTERNAL
ALARM
DISABLED
DISABLE / DOOR TEMP / DOOR
SWITCH / EXTERNAL ALARM
AUX1 SWITCH STATE*
OPEN
CLOSED
OPEN
State of input for door to be open or
external alarm to be active
DOOR TEMP*
-10.0°F
100.0°F
35.0°F
Temperature where heaters are
turned on
DOOR TEMP DIFF*
0.1°F
10.0°F
3.0°F
Temperature offset above 'DOOR
TEMP' to turn door heater off
HI DOOR ALR OFST*
0.1°F
100.0°F
100.0°F
Temperature offset above 'DOOR
TEMP' for high door temperature
alarm
LO DOOR ALR OFST*
0.1°F
20.0°F
5.0°F
Temperature offset above 'DOOR
TEMP' for low door temperature
alarm
DOOR TEMP ALR DLY*
1 minute
1440
minutes
15 minutes
Delay time when door temperature
is out of range before setting alarm
DOOR SWITCH STATE
DISABLED
CLOSED
OPEN
State of input for door to be open or
disable function (disable, open or
closed)
DOOR ALARM DELAY
0 minute
1440
minutes
15 minutes
Time for door to be open before
setting door open alarm
LIGHTS OFF DELAY
0 minute
60
minutes
5 minutes
Time after door closes that lights
relay is de-energized
Message
MIN
VALUE
MAX
VALUE
NORBEC
DEFAULT
VALUE
DESCRIPTION
AUX 2 FUNCTION
DISABLED
EXTERNAL
ALARM
MONITOR
DISABLE / ROOM TEMP / DOOR
SWITCH / EXTERNAL ALARM/
MONITOR
AUX2 SWITCH STATE
OPEN
CLOSED
OPEN
State of input for door to be open or
external alarm to be active
AUX3 FUNCTION
(Fan Failure Alarm)
DISABLED
EXTERNAL
ALARM
EXTERNAL
ALARM
DISABLE / DOOR TEMP / DOOR
SWITCH / EXTERNAL ALARM
AUX3 SWITCH STATE
OPEN
CLOSED
State of input for Aux3: Open / Close
MON TMP2 HI ALRM
-60.0°F
90.0°F
Cooler: 43°F /
6°C
Freezer: 10°F / -
12°C
If monitor temp2 is above this set
point for some time, set high temp2
alarm
MON TMP2 LO ALRM
-60.0°F
90.0°F
Cooler: 32°F /
0°C
Freezer:
-13°F / -25°C
If monitor temp2 is above this set
point for some time, set low temp2
alarm

│OPERATING INSTRUCTIONS MODULE IM4
97, rue de Vaudreuil Boucherville (Quebec) J4B 1K7 Canada T : 1 877 667-2321 | NORBEC.COM
Date of release : August 2023
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MON TEMP2 AL DLY
1 minute
1440
minutes
45 minutes
Delay time when temp2 is out of
range before setting alarm
MON TMP3 HI ALRM*
-60.0°F
90.0°F
35.0°F
If monitor temp3 is above this set
point for some time, set high temp2
alarm
MON TMP3 LO ALRM*
-60.0°F
90.0°F
-10.0°F
If monitor temp3 is above this set
point for some time, set low temp2
alarm
MON TEMP3 AL DLY*
1 minute
1440
minutes
15 minutes
Delay time when temp3 is out of
range before setting alarm
BUZZER MODE
DISABLED
DOOR
ALARM
ONLY
ENABLED
Function for buzzer DISABLED,
ENABLED, DOOR ALARM ONLY
DISP BRIGHTNESS
1
50
18
Dim or brighten display
ADDRESS*
1
5
5
Modbus Adresse
DISP CLEAR ALARM
—
—
—
Press and hold for3 seconds,
until display changes, to clear alarm
set in combo display
DISP FACTORY RST*
—
—
—
Press and hold for 3 seconds,
until display changes, to change set
points to factory defaults
TEMPERATURE UNITS
CELSIUS
FAHRENHEIT
—
CELSIUS
Temperature units : Fahrenheit,
Celsius
*Disregard for IM4

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Date of release : August 2023
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APPENDIX 1. Always active open door alarm solution
The following section is useful if the open-door alarm remains active when the door is closed.
Proximity Sensor Operation
NO Contact (Normally open)
The contact is closed when the magnet is in the operating range. That is the door closed.
Door Frame With P340 Profile
Position of the proximity sensor in the frame head on the monitor side.
This part is not visible and cannot be moved. It is integrated in the frame

│OPERATING INSTRUCTIONS MODULE IM4
97, rue de Vaudreuil Boucherville (Quebec) J4B 1K7 Canada T : 1 877 667-2321 | NORBEC.COM
Date of release : August 2023
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Door
Positioning of the magnet to activate the proximity sensor.
On top of the door, on the monitor side.
Possible to unscrew the screw to adjust the height and position of the magnet.
0.5

│OPERATING INSTRUCTIONS MODULE IM4
97, rue de Vaudreuil Boucherville (Quebec) J4B 1K7 Canada T : 1 877 667-2321 | NORBEC.COM
Date of release : August 2023
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Installation diagram for a proximity sensor on a sliding door: CL-1750
Installation diagram for a proximity sensor on a hinged door: PL-1750

│OPERATING INSTRUCTIONS MODULE IM4
97, rue de Vaudreuil Boucherville (Quebec) J4B 1K7 Canada T : 1 877 667-2321 | NORBEC.COM
Date of release : August 2023
12

│OPERATING INSTRUCTIONS MODULE IM4
97, rue de Vaudreuil Boucherville (Quebec) J4B 1K7 Canada T : 1 877 667-2321 | NORBEC.COM
Date of release : August 2023
13
APPENDIX 2. Installation step: IM4 keyboard
ATTENTION: PRIOR TO BEGINNIG THE INSTALLATION MAKE SURE YOU HAVE TURNED OFF THE
ELECTERICAL SUPPLY CIRCUIT.
PLEASE REFER TO THE WIRING DIAGRAM FOR THE COMPLETE DIAGRAM.
PLEASE REFER TO THE INSTRUCTIONS MANUAL FOR OPERATING AND CONFIGURATION INSTRUCTIONS.

│OPERATING INSTRUCTIONS MODULE IM4
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Date of release : August 2023
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Keyboard power supply:
1. Connect the white cable connector to the receptacle: « NEUTRAL ».
2. Connect the black cable connector to the receptacle: « LINE ».

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Date of release : August 2023
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With a 3mm flat screwdriver
Light control:
3. Insert and screw the stripped end of the black cable into the blue terminal block, in the position:
COM.
4. Insert and screw the stripped end of the red cable into the blue terminal block, in the position: NO

│OPERATING INSTRUCTIONS MODULE IM4
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Date of release : August 2023
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Panic button, temperature sensor and magnetic contact:
5. Insert and screw the stripped ends of the cables according to the following connection diagram:
New panic Button
(2021-10
@ today)

│OPERATING INSTRUCTIONS MODULE IM4
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Date of release : August 2023
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Old panic button
(2021-03
@ 2021-10)
Fan option
6. Insert and screw the stripped ends of the cables according to the following connection diagram:
Dry contact option –Alarm relay
7. Insert and screw the stripped ends of the cables according to the following connection diagram:

│OPERATING INSTRUCTIONS MODULE IM4
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Date of release : August 2023
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8. Replace the 9v battery :
9. Replace the keyboard, making sure that the cables are not to trap and making sure the gasket is in
place.
10. Fix the keyboard with the 6 screws provides.

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Date of release : August 2023
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APPENDIX 3. Installation step: Panic Button and temperature sensor
On the inside of the room:
1. Route the panic button assembly wiring trough the top hole to the IM4 junction box.
2. Attache the plate to the inner sheet of the panel, making sure the gasket id in place correctly.
On the outside of the room:
3. Fil the space around the panic button with mineral wool.

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Date of release : August 2023
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4. Seal the hole with silicone.
5. Close the hole with the grommet plug to contain the excess silicone.
6. Connect the panic button wiring to the IM4 monitor terminal block.
7. Repeat steps 3 to 5 for the temperature sensor.
8. Attach the monitor plate to the outer sheet of the panel, making sure the gasket is in place correctly.