Biddle STYLE2 Series Owner's manual

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INVISIDOR STYLE2COMPACT AIR CURTAIN
INSTALLATION, OPERATION &
MAINTENANCE ORIGINAL
INSTRUCTIONS
LANGUAGE: ENGLISH

INVISIDOR STYLE2COMPACT AIR CURTAIN: Installation, Operation & Maintenance Instructions
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All the information and drawings in this manual are the property of Biddle and may not be used (other
than for the actual operation of the device), photocopied, duplicated, translated and/or be brought to
the attention of third parties without Biddle’s prior written permission.
The name Biddle is a registered trademark.
Y
Please refer to Biddle's Terms of Sales and Delivery for warranty and liability conditions. Biddle
excludes liability for consequential loss at all times and under all circumstances. Failure to adequately
maintain the unit may void the warranty. If any problems are encountered, please contact your
installer/supplier. Failing this, please, contact the Biddle warranty department.
Care has been taken in compiling these instructions to ensure they are correct. Biddle. disclaims all
liability for damage resulting from any inaccuracies and/or deficiencies in this documentation. Biddle
retain the right to change the specifications stated in these instructions.
Biddle Air Systems Email: [e-mail]
St. Mary’s Road Nuneaton Tel: + 44 (0) 24 7638 4233
Warwickshire England Fax: + 44 (0) 24 7637 3621
CV11 5AU www.biddle-air.co.uk
The units described in this manual are designed to be surface mounted inside a building and located
horizontally over a doorway or vertical on the side of the doorway. They must not be installed on the
outside of a building or built into a cabinet or recessed in any way.
Please complete the following details for your reference:
Date of Purchase:
Place of Purchase:
Serial Number:
Proof of purchase is required to make a claim under warranty.
COPYRIGHT
WARRANTY

INVISIDOR STYLE2COMPACT AIR CURTAIN: Installation, Operation & Maintenance Instructions
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This manual describes the installation, operation and maintenance of the Invisidor Style2Compact air
curtain unit. The manual also provides information on service and fault conditions.
Electrical Supply and Wiring to the Air Curtain
All electrical wiring and connections MUST be carried out by a competent qualified electrician in
accordance with the latest edition of national and local wiring regulations and/or local statutory
regulations. “Danger: Disconnect electrical supply before servicing”
A single phase or 3 phase local isolator having a contact separation of at least 3mm on all poles must
be fitted in the electrical supply to the air curtain and located in an accessible position adjacent to the
unit.
•The appliance must be connected by cables having an appropriate heat resistant temperature
rating. For two air curtains in a vertical stack, electrical power must be connected separately
to the bottom air curtain and to the top air curtain. NB The electrical supply to the top air
curtain may be routed via the bottom air curtain.
•All supply cables, circuit breakers and other electrical installation equipment must be correctly
sized for the air curtain model being installed –refer to Technical Specifications section.
•On a 3 phase electrical supply the unit requires a neutral connection (3N~)
•See Wiring Diagrams for connecting electrical supply/s and control cables to the air curtain.
The air curtain must be earthed.
CAUTION –Some parts of this product can become very hot and cause
burns. Particular attention has to be given where children and vulnerable
people are present
Attention!!
For stainless steel units the inlet casing and back casings are coated in an easy to peel protective film.
Please ensure all the protective film is removed before the air curtain is put into service.
ABOUT THIS MANUAL
IMPORTANT INFORMATION

INVISIDOR STYLE2COMPACT AIR CURTAIN: Installation, Operation & Maintenance Instructions
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The following items are supplied in the box at delivery. Any missing or damaged parts should be
reported to the place of purchase:
•Invisidor Style2Compact Air Curtain
•Touchpad Remote Control (Supplied with 6m RJ Control Cable)
•3-port Control Valve (For Water Heated Units)
•Wall or Ceiling Brackets (if applicable)
Check the unit and all its packaging for correct delivery. Make sure that all components and
accompanying parts have been supplied. Immediately report to the supplier if anything is missing or
damaged
The product must be stored in a dark, dry, frost free and well-ventilated place out of the reach of children.
Storage temperatures should be within those specified in the Technical Specifications section. The
original packaging should be used for long term storage.
Prior to transporting the product, it should be removed and stowed safely so as to not incur damage.
The original packaging should be used wherever possible and the product should be protected from
any significant temperatures, moisture or vibration.
During installation, maintenance and decommissioning the air curtain it will be necessary to move the
product.
This product will offer many years of service when used and maintained in line with these instructions.
When the product does need to be disposed of, please recycle the product where facilities exist. Waste
electrical products should not be disposed of with household waste.
DELIVERY CONTENTS
TRANSPORT, STORAGE AND DISPOSAL

INVISIDOR STYLE2COMPACT AIR CURTAIN: Installation, Operation & Maintenance Instructions
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Air Curtain
Electrical
Supply
(V/ph/Hz)
Rated
Power
Input
(kW)
Current
per
phase
(A)
Heat
Output
(kW)
Weight
(kg)
Ambient Units
STYLE2C 100 A
230/1/50
0.15
0.7
N/A
30
STYLE2C 150 A
230/1/50
0.20
0.9
N/A
43
STYLE2C 200 A
230/1/50
0.25
1.1
N/A
59
STYLE2C 250 A
230/1/50
0.35
1.6
N/A
73
Water Heated Units
STYLE2C 100 W
230/1/50
0.15
0.7
6.0
31
STYLE2C 150 W
230/1/50
0.20
0.9
9.0
44
STYLE2C 200 W
230/1/50
0.25
1.1
12.0
60
STYLE2C 250 W
230/1/50
0.35
1.6
15.0
75
Electric Heated Units
STYLE2C 100 E
230/3/50
9.15
13.7
4.5/9.0
32
STYLE2C 150 E
230/3/50
12.20
18.3
6.0/12.0
45
STYLE2 C 200 E
230/3/50
18.25
27.2
9.0/18.0
62
STYLE2C 250 E
230/3/50
21.35
32.0
10.5/21.0
77
Table 1. Product Code and Electrical Specifications
Above information based on high fan speed operation.
Unit Operation Conditions
IP Rating
IP20
Maximum Temperature (Storage)
-10oC –60oC
Maximum Temperature (Operating –Heating Models)
0oC –30oC
Maximum Temperature (Operating –Ambient Models)
0oC –40oC
Relative Humidity
95% Non-Condensing
TECHNICAL DATA TABLE

INVISIDOR STYLE2COMPACT AIR CURTAIN: Installation, Operation & Maintenance Instructions
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Horizontal Style2Compact Air Curtain
The Invisidor Style2Compact Air Curtain should be surface mounted inside the doorway and not
exposed to the external environment or moist conditions. It should not be built-in or recessed in any
way.
Location
Ensure that the unit is mounted within its height specification of 1.8m to 2.75m maximum (from floor
level to the underside of the unit) with the air discharge grille positioned nearest to the door. The air
curtain should be located as close to the door opening as possible for best performance, obstructions
such as door opening devices, structural beams etc will reduce the efficiency of the air curtain. There
must be at least 200mm clearance at the air inlet for air to enter the air curtain.
For maximum effectiveness it is essential to ensure the width of the air curtain is slightly wider than the
width of the door when it is open.
Using the 2.5mm hexagon key wrench supplied, unfasten and remove all casing screws from air curtain
inlet grille and carefully detach the casing. All screws should be kept safe as they will be required later
in the installation.
Wall and Ceiling Fixing
Before fitting the unit to the wall obtain suitable wall fixing bolts, taking into account wall type and unit
weight (see table 1)*.
Horizontal air curtains are supplied with two wall brackets fitted to each end of the unit. Refer to Figure
1 for mounting details. Drill the wall accordingly and secure the unit to the wall above the door. Ensure
all fixings are correctly fitted and tightened.
INSTALLATION

INVISIDOR STYLE2COMPACT AIR CURTAIN: Installation, Operation & Maintenance Instructions
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Back and inlet grille panels should only be fitted after all functional tests have been completed and
verified (See Commissioning).
For multiple air curtains joined together over a doorway a wall bracket must be fitted at each joining
point.
* It is the sole responsibility of the installer to ensure that all the fixing points and suspension
system used are suitable for the air curtain being installed.
Attention: For Stainless Steel units the inlet grille and back panels are coated in an easy to peel
protective film. Please ensure all the protective film is removed before the air curtain is put into service.
For clarity, all photographs in the instructions show the Stainless Steel sheet with the protective film
already removed.

INVISIDOR STYLE2COMPACT AIR CURTAIN: Installation, Operation & Maintenance Instructions
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D2000HD1500HD1000H 213016501130A(mm)
ENTERING AIR
DISCHARGE AIR
242
362
411
195
Figure 1 HORIZONTAL DESIGNER AIR CURTAIN
A + 150mm
A + 86mm
82.5 82.5
Entry Point for
Water Connections
Wall Bracket with 3 off
Holes for M8 Rawl Bolts
Bracket for units with
length greater than 2.13m
A200mm minimum
clearance
Entry Point for Electrical and
Control Connections
D2500H
2780
STYLE2Compact
C 100 H
C 150 H
C 200 H
C 250 H
A (mm)
1130
1650
2130
2780
HORIZONTAL STYLE2Compact AIR CURTAIN
Figure 1 Wall Mounted Horizontal Style2Curtain

INVISIDOR STYLE2COMPACT AIR CURTAIN: Installation, Operation & Maintenance Instructions
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Vertical Style2Air Curtain
The air curtain must be surface mounted within the building and not exposed to the external
environment or moist conditions. Do not install the air curtain in a doorway situation where there is a
likelihood, or there has been a history of, rain ingress. The air curtain must not be built into a
compartment or recessed.
Location
Prior to commencing any vertical installation it is essential to ensure the correct handing has been
selected, i.e. Left Hand (LH) or Right Hand (RH) - . see “Handing Guide” in Figure 2. Maximum doorway
width = 1.5m per air curtain.
For maximum effectiveness, it is essential to ensure the height of the air curtain is slightly higher than
the opening height of the door. Obstructions such as door opening devices, structural beams etc will
reduce the efficiency of the air curtain. There must be at least 200mm clearance at the air inlet for air
to enter the unit, see Figure 2.
Floor Fixing
Using the 2.5mm hexagon key wrench supplied, unfasten and remove all the casing screws from the
air curtain and carefully detach both sections of casing. All screws should be kept safe as they will be
required later in the installation.
Before installing the Style2air curtain obtain four suitable fixing bolts, taking into account floor type and
unit weight (see Table 1)*. Rawlplug ®M10 Projecting Rawlbolt ® 44356 type may be suitable. For
dimensional details refer to the general assembly drawing, Figure 2.
Style2Compact vertical air curtains are supplied with the foot plate fitted. Determine and place the unit
at its most favourable position. A wall bracket must be fitted to the top of the unit for C200 and C250
air curtains to tether the top of the unit to the wall. In order to use the wall bracket supplied ensure the
back of the foot plate touches against the wall.

INVISIDOR STYLE2COMPACT AIR CURTAIN: Installation, Operation & Maintenance Instructions
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Using the foot plate as a template, mark the location of the four holes, as indicated in the adjacent
picture. Using a suitable masonry drill bit, correctly drill the four marked out holes. Place M10 fixing
bolts into each hole, ensuring all bolts are upright.
Reposition the air curtain foot plate over the projecting bolts. Tighten each M10 nut as indicated in the
adjacent picture. Ensure the vertical unit is secure, upright and square.
Using a hacksaw carefully cut the projecting bolts flush with the nut, ensuring the foot plate is not
damaged or marked in any way.
Remove only one M10 nut and refit and secure bolt with a stainless steel M10 dome nut supplied.
Repeat for each of the other three projecting bolts one at a time. Both sections of the casing should be
fitted only after all functional tests have been completed and verified (see Commissioning).
Back of foot plate

INVISIDOR STYLE2COMPACT AIR CURTAIN: Installation, Operation & Maintenance Instructions
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Stacking Air Curtains
Only a single 1.0m stacking vertical air curtain should be mounted on top of another vertical unit. The
maximum overall height for stacking is 2.78m (1.5m + 1.0m vertical). All units higher than 1.5m must
be secured with a wall bracket at the top of the stack.
Using fixing kit components supplied the vertical stack frames are joined together using M8 x 25mm
hexagonal bolts and M8 nyloc nuts (see insert).
* It is the sole responsibility of the installer to ensure that the floor and any fixing points are
suitable for the air curtain being installed.
Attention: For Stainless Steel units the inlet grille and back panels are coated in an easy to peel
protective film. Please ensure all the protective film is removed before the air curtain is put into service.
For clarity, all photographs in the instructions show the Stainless Steel sheet with the protective film
already removed.

INVISIDOR STYLE2COMPACT AIR CURTAIN: Installation, Operation & Maintenance Instructions
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D2500V
D2000V
D1500V 2780
2130
1650
A(mm)
View 'A' View 'B'
As Drawn for L.H. Opposite Hand for R.H.
DOORWAY
RH
LH
View 'A'
View 'B'
OR
A
340
Foot Plate
460
Foot Plate
362
242
75
Figure 2 VERTICAL DESIGNER AIR CURTAIN
OUTSIDE
DISCHARGE AIR
INSIDE
ENTERING AIR
49
49
"Handing Guide"
3 Holes for M8
Distance between hole
centres 82.5mm Bolt Holes for M8
Rawl Bolts - 3 off Wall Bracket for
D2000V & D2500V
Bolt Holes for M10
Rawl Bolts - 4 off Entry Point for Water and
Electrical Connections
if entry via floor void
Entry Point for Water, Electrical
and Control Connections
200mm minimum
clearance
1.5m max. Air
inlet
Air
inlet
STYLE2Compact
C 150 V
C 200 V
C 250 V
A (mm)
1650
2130
2780
VERTICAL STYLE2Compact AIR CURTAIN
Figure 2 Vertical Style2 Curtain

INVISIDOR STYLE2COMPACT AIR CURTAIN: Installation, Operation & Maintenance Instructions
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LPHW Models
For LPHW models ensure suitable water mains isolating valves, as detailed below, are fitted to both
the flow and return pipework. When fitting the 3-port valve ensure that the pipe connections are fitted
as detailed below and are in accordance with the manufacturers leaflet supplied with the valve.
Air Curtain
Water Flow Rate (l/s)
82/71 °C
Coil Water Pressure
Drop (kPa)
STYLE2C 100 W
0.14
2.77
STYLE2C 150 W
0.21
6.74
STYLE2C 200 W
0.29
13.40
STYLE2C 250 W
0.35
15.20

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Mount the Touch Controller in a convenient position directly to the wall or onto a switch box.
Wall Mounting
Step 1 Press release button on side of Controller case and pull the back case away.
Figure 1.
Step 2 Feed one end of the RJ control cable through the back case, secure it, then screw the back
case to the wall using suitable fixings (not supplied).
Step 3 Connect the RJ plug to the RJ socket on the PCB in the remote control.
Step 4 Refit the front case.
Switch box Mounting
Step 1 Press release button on side of Controller case and pull the back case away (Figure 1)
Step 2 Feed one end of the RJ control cable through the switch box, feed and secure the RJ control
cable through the back case and secure back case to switch box using 2 mounting screws (not
supplied).
Figure 2.
Step 3 Connect the RJ plug to the RJ socket on the PCB in the remote control.
Step 4 Refit the front case.
MOUNTING AND CONNECTING CONTROLLER

INVISIDOR STYLE2COMPACT AIR CURTAIN: Installation, Operation & Maintenance Instructions
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Basic (Wall Controller) Operation
The air curtain can be operated using the wall controller. The wall controller must be connected via RJ
communications lead to CCS PCB.
On/Off
Press and hold Home touchpad for 2 seconds to turn air curtain ON or OFF.
Manual/Automatic
With Controller turned ON tap Home touchpad to switch between Automatic and Manual mode.
The screen displays either for “Auto Mode” or for “Manual Mode”.
Heating level control
Manual mode
Select heating level and cycle between zero, half heat and to full heat with each short Up
or Down touchpad press.
USING THE SYSTEM
NOTE: If an electric heated air curtain is heating when switched off the fan will run-on for approximately
2 minutes to dissipate excess heat.
Home
Speed
Up
Down

INVISIDOR STYLE2COMPACT AIR CURTAIN: Installation, Operation & Maintenance Instructions
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Automatic mode
Heat output is controlled automatically according to inlet air and the desired temperatures. The inlet air
temperature is the upper temperature indication on the Controller adjacent to on the LCD
screen.
Fan speed
Short press Switch touchpad to switch and cycle fan speed:
• low
• Medium
• High
Date and Time Settings
Configure Date and Time settings either via App or on Controller as below.
Turn Controller ON and hold Speed touchpad for 2 seconds.
Follow instructions on LCD screen with:
▪Tap Up touchpad to increase value
▪Tap Down touchpad to decrease value
▪Tap Speed touchpad to confirm values
Wifi Operation
This air curtain can be operated remotely via an app. The app gives additional functionality such as
scheduled start/stop, keypad locking and remote diagnostic readouts.
Setting up Wifi connectivity
1. Download and install the Biddle air curtain app from the Apple App Store or Google Play Store
2. Follow on screen instructions to link the device to your app.
Additional Features
Please refer to the in-app help manual on how to use the additional features in the app.

INVISIDOR STYLE2COMPACT AIR CURTAIN: Installation, Operation & Maintenance Instructions
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Remote control Settings
Touch Controller with four default software Flag settings provide optional features detailed in Table 2.
If required, software Flag values can be changed by entering advanced settings as below.
With Controller ON, long press both Up and Down touchpad –01 Flag menu displayed on screen. Tap
Home touchpad to detail Flag 01 Reset on powerup.
Follow instructions on LCD screen with:
•Tap Speed touchpad to cycle Flags 1 to 4
•Tap Up or Down touchpad to change selected Flag value.
Tap Home touchpad to confirm value.
FLAG
Feature
Explanation
Default
Notes
1
Reset on
power-up
On restoring power after an
electrical interruption all Remote
Control settings are retained
01
(ON)
WARNING! –Fans
start on their own
after power is
restored
2
Stop fan on cold
Fans are switched off when heating
level is achieved (AUTO mode only)
00
(OFF)
3
Never blow cold
Air curtain always heats in AUTO
mode
00
(OFF)
Will not go to
ambient mode
4
Room air
temperature
control
Enables the room air sensor in the
Remote Control
00
(OFF)
Disables all other
temperature sensors
Table 2.

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Remote switch contacts IN0, IN1
Terminals IN0 and IN1 on the CCS PCB inside the air curtain can be used to provide different control
strategies using remote volt-free contacts (see Fig 9). This could be to provide remote On/Off from a
timer or BMS Digital/Output contact, to work with a door switch or for simple weather compensation
control to disable heating when outdoor air temperatures become warmer. Table 3 describes the
different functions:
Function
IN0
Notes
Remote
On/Off
(INHIBIT)
Unit operates
normally in
MANUAL Mode or
AUTO Mode
fromthe Remote
Control
Unit switches off
after 15s, with fan
run-on at Medium
fan speed if
DIP 2 = OFF
Use the Remote Control to set up unit and
then hide it away if required. *
On/Off is then done via IN0 using a remote
volt-free contact.
Function
IN1
DIP 4
IN0
Notes
Door
Switch
Control
After 30s the
heating is disabled
and the fan goes to
low speed
Unit operates
normally in
MANUAL Mode or
AUTO Mode
fromthe Remote
Control
ON
✓

Door Open:-
NormalControl
Door Closed:-
Heating Off
LowFan Speed
Summer
Winter
Unit operates
normally in
MANUAL Mode or
AUTO Mode
fromthe Remote
Control
COLD DAY
Heating is disabled
straight away,
Fan speeds
operatenormally
fromthe Remote
Control
WARM DAY
OFF
Simple weather
compensation control
using an outdoor air
thermostat with volt free
contacts
(see Section 11.3)
Table 3
NOTE: Wire volt-free, remote switch contacts to 2-way screw terminals IN0 and IN1 using 2-core cable.
EXTERNALCONTROLS
Figure 3

INVISIDOR STYLE2COMPACT AIR CURTAIN: Installation, Operation & Maintenance Instructions
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WARNING: Do not apply any voltage to terminals IN0 and IN1 as this will damage the CCS PCB inside
the air curtain.
NOTE: The Controller must stay plugged-in for the air curtain to keep working. An optional plug-in
EEPROM is available from Biddle so the Remote Control can be un- plugged and the air curtain stay
working. Visit the Biddle website for details.
Overheat safety cut-out indication
For electric heated air curtains the CCS PCB includes a fault indication signal for if the overheat safety
cut-out on the electric heater operates.
Volt free changeover contacts (1A 240VAC 30VDC) can be wired via the 7-way screw terminal (see Fig 5).
Refer to Section Overheat Safety cut out, for how to reset a overheat safety cut-out situation.
Weather compensation control (Summer/Winter)
To save heating energy on warmer days a simple weather compensation (Summer/Winter) heat control
strategy can be used. Fit an outdoor air thermostat with volt-free contacts (supplied by the installer) to
a north facing wall.
Use a 2-core cable to connect the outdoor air thermostat to 2-way terminal IN1 on the CCS PCB (see
Fig 3) and on the CCS PCB, set DIP 4 to OFF as per Table 3.
NC
ALARM!
NO
HEALTHY
C
Figure 4

INVISIDOR STYLE2COMPACT AIR CURTAIN: Installation, Operation & Maintenance Instructions
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WARNING: Do not apply any voltage to terminal IN1 as this will damage the CCS PCB.
NOTE: To promote increased energy saving a more advanced weather compensation control strategy
is available from Biddle. Using a heating curve, the discharge air temperature of the airstream coming
from the air curtain is controlled against the outside air temperature. Visit the Biddle website for details.
To Master/Slave two or more air curtains together, or if there are two air curtains in a vertical stack, the
remote control is plugged into the first unit (the Master) and a RJ extension lead then connected from
the Master to the Slave unit(s).
For horizontal and vertical Master/Slave configuration an independent mains supply as per Table 1
must be supplied to each air curtain. The electrical supply to the top air curtain may be routed via the
bottom air curtain. Horizontal application air curtains, up to a maximum of eight units, may be connected
as indicated below. 3m RJ extension leads are available and should be ordered separately. They are
supplied as standard with vertical stack units.
MULTIPLE AIR CURTAIN SYSTEMS
Outdoor Air
Thermostat
Switch Contact Closed = Heating Enabled (cold day)
Switch Contact Open = Heating Disabled (warm day)
Figure 5