Biddle IndAC2 Operation instructions

a
Manual
Industrial air curtain
Model IndAC2
Version 7.0 - North America
Original Manual English

INDUSTRIAL AIR CURTAIN
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. . . Contents
1 Introduction 4
1.1 About this manual 4
1.2 How to read this manual 4
1.3 About the unit 5
1.4 Components and accessories 14
1.5 Safety instructions 15
2 Installation 17
2.1 Inspection on delivery 17
2.2 General working method 17
2.3 Suspending the unit horizontally 19
2.4 Installing the unit vertically 22
2.5 Connecting the unit to the central heating system 25
2.6 Connecting the unit to the mains supply 29
2.7 Installing the b-control continuously variable controller 35
2.8 Installing the b-touch control panel 39
2.9 Installing external controls 43
2.10 Finishing the unit 51
2.11 Switching ON and checking operation 52
3 Operation with b-control 56
3.1 Introduction 56
3.2 Switching ON and OFF 56
3.3 Regulating the strength 56
4 Operation with b-touch 57
4.1 Introduction 57
4.2 The Home screen 58
4.3 Main menu 61
4.4 Preferences 63
4.5 Settings 64
4.6 Configuration 65
4.7 Maintenance 73
4.8 USB 75
5Errors 77
5.1 Resolving simple problems 77
5.2 Error messages on the control panel 80
5.3 Remedying errors that are accompanied by an error message 81
5.4 Remedying errors that are not accompanied by an error message 84

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6 Maintenance 86
6.1 Introduction 86
6.2 Cleaning the unit 86
6.3 Scheduled maintenance 86
7 Servicing 88
7.1 Removing the fans 89
7.2 Accessing the heating element 91
7.3 Electronics module 91
7.4 Removing the control circuit board 92
7.5 Connecting the control circuit board 92
7.6 Fuses 93
7.7 LEDs 94
7.8 Setting the unit code 94
7.9 Resetting the PIN code 95
7.10 Copying the settings 95
7.11 Updating the software 97
7.12 Composition of the Biddle control cable 98
8 Dismantling 99
9 Addresses 101
Keywords 102

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1. . Introduction
1.1 About this manual
This manual describes the installation, operation and mainte-
nance of , the industrial air curtain model IndAC2. The manual
also provides instructions and information for servicing activi-
ties.
1.2 How to read this manual
1.2.1 Designations used in the manual
The following symbols are used in the manual:
Note:
nRefers to an important section in the text.
Caution:
cIf you do not carry out the procedure or action
correctly, you may cause damage to the unit.
Follow the instructions precisely.
Warning:
wIf you do not carry out the procedure or
action correctly, you may cause physical injury
and/or damage.
Follow the instructions precisely.

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Danger:
dIs used to designate actions that are not
permitted.
Ignoring this prohibition may lead to serious
damage or to accidents resulting in physical
injury.
1.2.2 Symbols used on the unit and in the manual
The following symbols indicate possible risks or hazards. The
same symbols will also be found on the unit.
1.2.3 Related documentation
In addition to this manual, the following documentation is also
supplied with the unit:
• wiring diagram for installation and servicing.
1.3 About the unit
1.3.1 Applications
The air curtain model IndAC2is intended for the separation of
climates between indoors and outdoors, or between two
rooms. It is installed above or next to the door, across the full
width or length of the doorway. The IndAC2model is primar-
ily suitable for larger doors in industrial buildings.
Models having a maximum range (type MX) are intended for
professional use.
SYMBOL DESCRIPTION
wYou have accessed a section of the unit containing components which carry
a voltage.
Access restricted to qualified maintenance staff only.
Caution is required.
wThis surface or component may be hot. Risk of burns on contact.

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Depending on the type, the air curtain is hung horizontally
above the doorway, or erected vertically next to the doorway
(on left or right, or on both sides).
Other versions and intended use
Upon request, we can supply versions for non-standard appli-
cations.
Warning:
wApplications other than those described
above are deemed to be usage other than for
the intended purpose. Biddle is not liable for
damage or loss resulting from usage other
than for the intended purpose. Usage for the
intended purpose also entails observance of
the instructions in this manual.
1.3.2 Operation
General
An air curtain above the door opening counteracts losses of
energy and comfort. Located at the opening, it blows out a
stream of air and thereby brings about the following:
• The exchange of air between two rooms due to a temper-
ature difference (convection) is counteracted.
• The air that enters at floor level due to draught is possibly
heated.
EXAMPLE OF AHORIZONTAL ASSEMBLY EXAMPLE OF AVERTICAL ASSEMBLY

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The automatic CHIPS control
Depending on the implementation, the unit may be equipped
with an automatic CHIPS control.
The CHIPS control automatically adjusts the strength and heat
of the unit to changing weather conditions. Thus, in all situa-
tions the energy loss is minimal and the comfort maximal.
CHIPS stands for “Corrective Heat and Impulse Prediction Sys-
tem”.
Control when unit ‘on’
The unit andthe automatic controlwere developed for situa-
tions in which the door stands open.
For the most efficient climate separation and preservation of
comfort it is important that the airflow just touches the floor
and is heated sufficiently. The unit continuously measures the
values that are needed in order to achieve this:
1. The installation height (entered in the control panel)
2. The temperature difference between the two rooms:
- outdoor temperature
- room temperature
3. The temperature of the discharged air
As soon as the situation changes, the control adjusts the out-
let flow rate and the temperature of the airflow to that.
Control with unit ‘off’
If the unit is off – at night, for example – it is not active as cli-
mate separation.
If it is off, the unit can indeed still perform other functions:
• The unit can be set to keep the room at a minimal ‘night’
temperature.
• Water-heated models are equipped with integrated frost
protection.

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Door response
The unit and the automatic control have been developed for
situations in which the door stands open.
If the door is not continuously open, the operation can be
adjusted to this:
• Normal operation: the unit is always discharging air.
• Direct door response: the unit responds directly to the
opening and closing of the door.
• Gradual door response: the unit responds to the opening
and closing of the door. The speed of response is based on
the open/closed ratio.
Note:
nIf the door is closed, the unit works as a room
temperature controller.
Note:
nIn some situations the unit does not discharge any
air, even though it is on.
1.3.3 Type designation
The table below provides an overview of the available models
of the industrialair curtain and the corresponding type designa-
tions. In combination, the type designations constitute the
type code, for instance: IndAC2MX-150-H2-0-Auto-480/52.
If some part of the manual applies to certain models only,
these will be indicated with the corresponding type designa-
tion, for example:
• 150: models with discharge width 150
• H: water-heated models
• 0: horizontal models
• Auto: models with automatic control
Note:
nIn the illustrations in this manual, one type of unit is
used as a general example. The outer appearance of
your unit may be different but its function is the
same, unless stated otherwise.

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Explanation of the type code
See also:
1.3.4 "Installation positions" on page 9
1.3.4 Installation positions
The IndAC2air curtain is suitable for mounting in various
installation positions. Depending on the situation, the unit can
be placed above or next to the door. In total, there are five
installation positions: 0, 1L, 1R, 2L, 2R.
Caution:
cThe unit has been manufactured specifically for the
installation position indicated in the type code. The
unit cannot be located in another position.
T
YPE CODE ELEMENT DESIGNATION MEANING
product series IndAC2general designation for the series
capacity ST default range (door height 3-6 m)
MX maximum range (door height 5-8 m)
length 150, 200, 225 or 250 discharge length in cm
battery type H1
H2
water heating
A without heating
installation position 0, 1L, 1R, 2L, 2R In section 1.3.4 - Installation positions, pagina 9, the various
installation positions are explained.
control Basic basic control
Auto automatic CHIPS control
mains supply 230/22 230V, split phase, 60 Hz
208/32 208V, three-phase (without neutral wire), 60 Hz
480/32 480V, three-phase (without neutral wire), 60 Hz
480/52 480V, combination three phase/split phase, 60 Hz
600/32 600V, three-phase (without neutral wire), 60 Hz

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CODE INSTALLATION POSI-
TION EXAMPLE
0 horizontal,
above door
1L vertical,
next to door, on left,
at right angle to wall
1R vertical,
next to door, on
right,
at right angle to wall
2L vertical,
next to door, on left,
along the wall
2R vertical,
next to door, on
right,
along the wall
= direction of air inlet and discharge (must remain
unobstructed)
= inspection side (must be accessible)
= electronic housing

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1.3.5 Type plate
The type plate is located next to the discharge grille.
Designations on the type plate
1.3.6 Field of application
Observe the following limits for the unit:
Application limits for all models
Parameters of use for water-heated models
DESIGNATION MEANING
Type complete type code of the unit
Code configuration code
Noserial number, production week and
year
M weight of unit
Medium medium
pmax maximum permissible operating pres-
sure
U power supply voltage
Imax max. current
Pmotor max. power consumption by fans
Ambient conditions Temperature 5 °C to 40°C
(41 °F – 104 °F)
Relative air
humidity
20% – 95%, non-
condensing
Power supply voltage see type plate
Power see type plate
Maximum discharge temperature 60 °C(140 °F)
Heating medium water with max.
50% glycol
Maximum operating pressure see type plate

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Maximum water flow-paths (unregulated)
Maximum water flow-paths (regulated)
Caution:
c* A water flow-path up to 125 °C/16 bar (257 °F/16
bar) is only permitted if all units connected have
been set in such a way that the maximum discharge
temperature is not exceeded at the lowest fan
speed.
Note:
nConsult Biddle if you want to connect a unit to a
water flow-path with higher temperatures and higher
pressure.
Warning:
wThe air curtain may not be used in potentially
explosive environments.
Biddle shall not be held liable for damage caused by
use in such situations.
TYPE OF UNIT
MAXIMUM
PERMITTED DIS-
CHARGE
TEMPERATURE
MAXIMUM WA-
TER FLOW-PATH
(UNREGULATED)
H1 60 °C(140 °F) 100/80 °C (212/
176 °F)
H2 60 °C(140 °F) 70/50 °C
(158/122 °F)
TYPE OF UNIT
MAXIMUM
PERMITTED DIS-
CHARGE
TEMPERATURE
MAXIMUM WA-
TER FLOW-PATH
(REGULATED)
H1 60 °C(140 °F) 125 °C/16
bar(257 °F/16
bar)*
H2 60 °C(140 °F) 125 °C/16
bar(257 °F/16
bar)*

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Sound levels
V = 2500 m3; T60 = 0.8s; R = 5m; Q = 4
Warning:
wProlonged exposure can cause damage to the
hearing. If necessary, wear hearing protection.
Maximum number of units that can be daisy chained
Take into account the maximum number of units that can be
daisy chained as shown in the table below:
Caution:
cWith Auto type unit: The total cable length
between the first and the last unit may be 100m at
maximum.
Note:
nConsult your Biddle advisor if you wish to connect
more units.
1.3.7 Modifications and changes
Without the approval of Biddle, no changes or modifications
may be made to the unit that could adversely affect safety.
MAXIMUM SOUND
PRESSURE LEVEL
LP[DB(A)]
MAXIMUM SOUND
POWER LEVEL LW
[DB(A)]
IndAC2ST-150 61 77.8
IndAC2ST-200 62 79.1
IndAC2ST-250 63 80.1
IndAC2MX-150 69 85.6
IndAC2MX-225 71 87.4
INDAC2ST INDAC2MX
Basic 5 m total length
(10 fans)
7.5 m total length
(10 fans)
Auto 10 units 10 units
Basics per Auto 2 units 2 units

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1.4 Components and accessories
1.4.1 Components supplied
For horizontal installation:
• suspension rails (2 per unit), also used for fixing the unit to
the pallet;
For vertical installation:
• coupling plates (2 per unit)
• safety hanger
Note:
nFor delivery purposes, some components may be
packed within the unit (behind the inspection panel).
1.4.2 Operating package
The unit can be supplied with a basic control or an automatic
CHIPS control. A corresponding operating package is supplied.
Operating package for basic control
•b-control continuously variable controller.
Operating package for automatic CHIPS control
•b-touch control panel;
• Biddle control cable;
• outdoor temperature sensor;
• door contact switch;
• water-side control (valve and drive).
1.4.3 Accessories
• plastic side shields;
• base plate (recommended in the event of vertical installa-
tion);
•flanges;
• filter module;
• room sensor for automatic CHIPS control;
• door contact switch.

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Note:
nFor models with automatic CHIPS control, the door
contact switch is part of the control package as
standard.
1.4.4 Components not supplied
The following components required for installation must be
obtained from third parties:
• threaded rods(M12)
• other cabling
1.5 Safety instructions
1.5.1 Safety in use
Warning:
wDo not put any objects into the inlets and
outlets.
Warning:
wDo not obstruct the unit’s inlets or outlets.
Warning:
wThe upper surface of the unit becomes hot
during operation.
Caution:
cIn exceptional situations, water may run out of the
unit. Therefore, do not place anything under the unit
that could be damaged by this.

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1.5.2 Safety issues relating to installation, mainte-
nance and servicing
Danger:
dThe unit may only be opened by qualified
technical staff.
Warning:
wPerform the following actions before opening
the unit:
1. Switch the unit off,using the control panel.
2. Wait until the fans have stopped.
Danger:
dThe fans may continue rotating for a while.
3. Allow the unit to cool down.
Caution:
cThe heat exchanger or, as the case may be, the
heating elements, may get very hot.
4. Disconnect the mains supply ( set the isolation switch to
OFF).
Caution:
cFor models IndAC2MX with automatic CHIPS
control:
the units are equipped with 2 mains power cables.
Disconnect the mains supply to both mains power
cables.
5. For water-heated models:
shut off the central heating feed (if possible).
Warning:
wThe fins of the heat exchanger are sharp.

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2. . Installation
Warning:
wInstallation activities may only be performed
by technical staff qualified for this purpose.
Warning:
wBefore starting installation: read the safety
instructions.
See also:
1.5 "Safety instructions" on page 15
2.1 Inspection on delivery
• Check the unit and the packaging to ensure that they have
been delivered in good order. Notify the driver and the
supplier immediately if any shipping damage is detected.
• Ensure that all components are present. Notify supplier of
any missing parts immediately.
See also:
1.4 "Components and accessories" on page 14
2.2 General working method
2.2.1 Sequence of operations
Biddle recommends working as follows when installing the
unit:
1. Hang the unit up. (horizontal models)
2. Position the unit. (vertical models)
3. For water-heated models (type H):
connect the unit to the central heating system.

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4. Connect the unit to the mains supply.
Caution:
cMake sure that the unit’s power supply voltage
matches the local mains voltage.
The unit’s power supply voltage is displayed on the
type plate.
5. Install the control panel and (any optional) connections to
external controls.
6. Complete the installation of the unit.
7. Switch the mains supply on and check that the unit is
working properly.
General instructions
Some parts of this section only apply to certain models.
Where this is the case, it will be indicated. If no specific model
is referred to, then the description applies to all models.
Note:
nMake sure that you perform all installation
operations that are applicable to your unit.
Check the type plate and consult the manual if in
doubt about the model or type of your unit.
Note:
nDuring the installation period, protect the unit
against damage and penetration of dust, cement, etc.
You can, for instance, use the packaging for
protection.

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2.3 Suspending the unit horizontally
Only with installation position type 0
See also:
1.3.3 "Type designation" on page 8
1.3.5 "Type plate" on page 11
1.3.4 "Installation positions" on page 9
2.3.1 Suspension method
Example of an auxiliary structure This manual assumes that the unit will be suspended from an
auxiliary structure, consisting of two horizontal beams posi-
tioned above the door.
You may also fix the units directly to the ceiling, or to another
horizontal structure, using the screw holes in the upper side
of the unit.
Warning:
wMake sure that the structure from which the
unit is about to be suspended can bear at
least 4 times the weight of the unit.
2.3.2 Determining the location of the unit
• Position the underside of the unit at the same height as the
top of the doorway.
• Position the discharge side of the unit as close to the door-
way as possible, to ensure optimum operation.
Note:
nIf the distance is greater than 5 cm.(2”), Biddle
recommends that you seal off the openings at the
side. For this purpose, you can order a side shield of
plastic strips from Biddle.
• Position the row of units centrally in relation to the door-
way.

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• In the case of an assembly with automatic CHIPS control
and several units, only one of which is equipped with a
control circuit board, position the unit with the control
circuit board in the middle of the row.
• Units of different widths can be positioned in random
order.
• Make sure that the inspection and intake sides of the units
remain accessible for maintenance.
Warning:
wMake sure that all units can freely take in and
blow out air across their entire width
2.3.3 Suspending the unit
Perform the following actions for each unit:
1. Lay the unit in a horizontal position.
2. Fit threaded rods 1(M12) in all screw holes on the top of
the unit.
3. Provide all threaded rods with lock nuts 2, and tighten
them.
Note:
nThe threaded rods must be secured, otherwise the
unit may fall down.
4. Fit lock nuts 3to each threaded rod.
5. Bring the unit into position using lifting equipment.
6. Put the suspension rails 4on the auxiliary structure, and
fasten them with nuts 5to the threaded rods of the unit.
7. Allow the unit to hang freely.