Intelligas KVM-SF User manual

Intelligas takes every care in ensuring these products reach you in perfect working order.
Each system is tested on dispatch and site induced damage is easily detectable.
Ensure the operation of this unit is explained fully to the kitchen staff.
24 hour technical support line - 02381 290444
KVM - SF
Short form engineers wiring diagram
and functional explanation
INTELLIGAS
Gas safety & control systems
INSTALLATION
GUIDE
intelligas.co.uk

INSTALLATION
GUIDE
KVM-SF
INTELLIGAS
Gas safety & control systems
Introduction
Thank you for choosing an Intelligas product. Please follow these instructions to ensure a safe, functional and
long-lasting installation.
This information is important and should be read and understood before attempting installation.
If you are unsure of the terminations and their design voltages or function then refer to this guide or our technical
support line, you can call 02381 290444 or you can text 07952269791 and we’ll get back to you as soon as we’re
available.
Siting the panel
Choose a suitable mounting position for the control unit. Mount the unit away from sources of extreme heat. Ensure the panel is
placed in a position where mechanical damage is unlikely and where it can be easily accessed for use and maintenance.
Fix the panel using the marked enclosure holes only. Take care not to damage the internal wiring or PCB of the unit when drilling.
Under no circumstances should wiring be routed behind the PCB of the control panel.
Control panel supply
All our control panels (except the KVM-SF) should be supplied via a fused spur connection unit. The fuse should be changed to one
that’s rated at 5amps.
KVM-SF ONLY if the panel is supplying the fans directly from the PCB then it should be supplied via a 16amp single phase isolator.
If the panel is controlling Inverters and only the output signals are being used then, as above, the panel should be supplied by a 5amp
fused spur.
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INTELLIGAS
Gas safety & control systems intelligas.co.uk
Field wiring
All wiring from the supply and to the gas valve carries mains voltage (230v ac nominal). The current edition of the IEE Wiring
Regulations should be strictly adhered to, wiring and connections should be made by a suitably qualified electrician or competent
person.
The field wiring voltage to the interlock inputs is reduced to 24 volts, do not connect mains to the air pressure switch terminals,
e-stop, analogue input/output 0-10v control, gas detector or fire alarm terminals.
Please follow the first fix wiring schedule set out below:
1) Main supply 2 core + E 1.5mm (as per regulatory requirements)
2) Gas valve 2 core + E 1.5mm (as per regulatory requirements)
3) Pressure switches 2 core + E 1.5mm (YY type cable)
4) Fire alarm interlock (if req) 2 core + E 1.5mm (FP type cable)
5) Emergency stops 2 core + E 1.5mm (YY type cable)
6) Gas detection equipment, If fitted, 3 core screened (CY type cable)
7) Gas pressure switch, if fitted, 2 core + E 1.0mm (YY type cable)
8) 0-10v signal wiring, if fitted, 2 core 1.0mm (CY type cable)
KVM SF Dip switch settings
On the fascia pcb there are 6 dip switches. Below is their function:
1. OFF (gas proving disabled) ON (gas proving enabled)
2. OFF (supply & extract fans used) ON (extract only)
3. OFF (CO2 detector not fitted) ON (CO2 detector fitted)
4. OFF (extractor sensed on spare input terminals) ON (extractor fan sensed on board current sensors)
5. OFF (supply sensed on spare input terminals) ON (supply fan sensed on board current sensors)
6. OFF (temp sensor fitted in kitchen space) OFF (temp sensor fitted in canopy)
INSTALLATION
GUIDE
KVM-SF
Where multiple supplies enter a control
panel, perhaps in a current sensing
interlock. It is preferable that each supply
is on the same phase. If this can’t be
achieved, then additional warning labels
should fixed in a suitable location on the
control panel.
The advice given on these
instruction pages,
specifically to cable types
and ratings may change
depending on cable lengths
and installation conditions.
If you are not sure about
any of the cable types or
ratings then contact our
technical support team.

Electrical supply set up when using internal single phase speed controllers.
Gas valve output & Mains
supply to the panel. 1 x 16 amp
single phase for 230v fan output
or 3 amp if controlling invertors
remotely.
Single phase fan speed control
for fans up to 8 amps.
INSTALLATION
GUIDE
KVM-SF
INTELLIGAS
Gas safety & control systems intelligas.co.uk

Electrical supply set up when using remote 3 phase invertors.
Gas valve output & Mains
supply to the panel. 1 x 3 amp
single phase 230v.
Relay outputs for supply and
extract fan invertors enable
signal. 0-10v speed reference
for invertor speed control.
INSTALLATION
GUIDE
KVM-SF
INTELLIGAS
Gas safety & control systems intelligas.co.uk

Connect Air differential pressure switches here (supply and extract fans) when their use
has been selected on the dip switches on the fascia control board. (see dipswitch settings).
If gas proving is to be used then connect the Dungs gas pressure switch here. At
the switch, use terminal numbers 2 & 3. Link these terminal if gas proving is not to
be used.
A switched CO detector can be connected here. When the detectors relay
breaks these terminals the system will send all fans to full speed regardless of
whether its in on or in standby mode.
Fire alarm interlock is normally closed. This circuit should be broken to
put the system into fire mode. This shuts off the gas and supply fans.
Extract fan action is programmable depending on authority
requirements. Link these terminals if not being used.
Connect an extra estop button or buttons here, create a closed loop
if more than one button is installed, link if not required.
INSTALLATION
GUIDE
KVM-SF
INTELLIGAS
Gas safety & control systems intelligas.co.uk

INTELLIGAS
Gas safety & control systems intelligas.co.uk
INSTALLATION
GUIDE
KVM - SF
Connect a CO2 sensor here. Turn on switch 3 on the fascia control panel, this will enable automatic co2 fan
speed control and gas shut off on high CO2 (4-4.5kppm) use 24v and gnd to power the sensor, connect the
output of the sensor (V CO2) to the “sig” terminal.
If required, a room temperature sensor can
be connected to these terminals, the
system will run the fans at full speed when
the set point (adjustment on the fascia
control panel) has been reached.
Use these terminals to control 3 phase invertor
drives. The relays will operate when the fans are
selected as on on the fascia. The 0 -10v signal will
rise and fall with the selected speed on the front of
the panel.

INTELLIGAS
Gas safety & control systems intelligas.co.uk
INSTALLATION
GUIDE
KVM - SF
Set the current sensors and minimum speed levels.
Set the fan current levels
using the min and max pots
on the PCB for each fan.
Once the settng is in range
then the green LED will
illuminate.
Set the minimum speed of
the fans using the pots near
the min and max selectors.
This allows you to
determine the minimum
ventilation level
Run the fans up and down
stopping at each increment
of speed to ensure that the
current sensor light
remains green. This will
prevent nuisance tripping.
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Flow DirectionFlow Direction
On to appliances
or gas taps
Dungs gas pressure
switch set to 15 bar
Installation option 2
Unequal tee joint or centre
reduced down to 1/4” male nipple
to make directly into Dungs
gas pressure switch
To comply with gas regulations manual
isolation points, purge points and test
nipples may be required. This drawing is
for information only and the necessity of
the above items should be checked to
ensure compliance with the current
regulations.
INTELLIGAS
Gas safety & control systems intelligas.co.uk
Installation option 1
Alternatively, the gas pressure switch can
be made into the test point on the gas valve.
Ensure the downstream test point is used!
Intelligas gas proving system mechanical layout
INSTALLATION
GUIDE
KVM - SF