Biddle SensAir User manual

a
Manual
Comfort Air Curtain
Model SensAir
Version 1.0- North America
Original Manual English

COMFORT 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 6
1.4 Components and accessories 16
1.5 Safety instructions 17
2 Installation 19
2.1 Inspection on delivery 19
2.2 General working method 19
2.3 Hanging the unit up 21
2.4 Connecting the unit to the central heating system 25
2.5 Connecting the unit to the Daikin system 28
2.6 Connecting the unit to the mains supply 30
2.7 Installing the b-touch control panel 33
2.8 Installing external controls 35
2.9 Finishing the unit 39
2.10 Adjusting the IR sensor 43
2.11 Switching on and checking operation 44
3Operation 47
3.1 Introduction 47
3.2 The Home screen 48
3.3 Main menu 51
3.4 Preferences 53
3.5 Settings 54
3.6 Configuration 55
3.7 Maintenance 64
3.8 USB 66
4Errors 68
4.1 Resolving simple problems 68
4.2 Error messages on the control panel 71
4.3 Remedying errors that are accompanied by an error message 72
4.4 Remedying errors without an error message 76
5 Maintenance 79
5.1 Introduction 79
5.2 Replacing or cleaning the filter 79
5.3 Cleaning the unit 80
5.4 Scheduled maintenance 81

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6 Servicing 83
6.1 Access to the interior of the unit 83
6.2 Electronics module 84
6.3 Removing the control circuit board 85
6.4 Connecting the control circuit board 85
6.5 Daikin electronics 86
6.6 Resetting the high-limit thermostat 86
6.7 Fuses 87
6.8 LEDs 88
6.9 Removing the discharge section 88
6.10 Venting the heat exchanger 89
6.11 Draining the heat exchanger 89
6.12 Setting the unit code 89
6.13 Resetting the PIN code 91
6.14 Copying the settings of the b-touch control panel 91
6.15 Updating the software 92
6.16 Composition of the Biddle control cable 94
7 Dismantling 95
8 Addresses 97
Keywords 98

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1. . Introduction
1.1 About this manual
This manual describes the installation, operation and mainte-
nance of , the comfort air curtain model SensAir with b-touch
control panel and CHIPS control. The manual also provides
instructions and information for servicing activities.
1.2 How to read this manual
1.2.1 Daikin manuals
Only for SRV and SRQ:
This manual makes cross-references to the manuals of the
components of Daikin (outdoor unit, indoor unit, control
panel, etc.).
1.2.2 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.
1.2.3 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.
1.2.4 Related documentation
In addition to this manual, the following documentation is also
supplied with the unit:
• wiring diagram for installation and servicing.
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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1.3 About the unit
1.3.1 SensAir
The unit
Among other things, the unit contains:
• heating element 1(depending on the type of unit)
The heating capacity is controlled by the unit. For this pur-
pose, water-heated models have an integrated control
valve.
•fans2
The speed (strength) is controlled by the unit.
• air inlet sensor 3
•dischargesensor4
•For models with water heating or connected to a
Daikin system:
heating medium sensor 5
• IR sensor 6
• connection for
the b-touchcontrol panel 7
• connection for Modbus 8
The b-touch control panel
In addition to menus for the settings, the b-touch control panel
contains, among other things:
• temperature sensor 9
• connection for extra temperature sensor 0. With this, the
temperature at a different place in the room can possibly
be measured: for example, at a place where draughts
quickly occur.

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1.3.2 Applications
General
The purpose of the Comfort air curtain is to separate cli-
mates between two rooms and to heat and filter air (filter
class EN779-G2). The unit is installed horizontally above the
doorway, across its full width.
Mounting types
The free-hanging model is designed for free, visible installation
above the door.
The recessed model is designed for integration into a false
ceiling or into an alcove, with the inlet opening possibly at
some distance from the unit.
The cassette model is designed for installation above a false
ceiling, with the inlet opening close to the unit; the unit must
be easily accessible.

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Comfort air curtain for Daikin system
With models SRV and SRQ:
The air curtain is connected to a direct expansion system
from Daikin. The air discharged by the unit is heated by the
cooling medium. The air curtain is controlled and operated
partly by the Daikin system and partly by the Biddle system.
This system has a number of limitations:
• The unit is only suitable for use in Daikin direct expansion
systems.
• The unit is not suitable for cooling.
• The Daikin system has to be active at all times.
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.
1.3.3 Operation
General
In an opening between two rooms, air is exchanged through
pressure and temperature differences (convection). This leads
to energy losses and detracts from the comfort in the room.
For reasons such as accessibility, it may nevertheless be desira-
ble to leave the door standing open. An air curtain above the
door opening counteracts losses of energy and comfort. At
the location of 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.

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The 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 System’.
Control when unit ‘on’
The unit and the auto-active control have been developed for
situations 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.
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.
Door response
The unit and the auto-active 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 active.
• Direct door response: the unit responds directly to the
opening and closing of the door.

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• 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:
nWith the door closed, the unit can be set to keep
the room at a minimal room temperature.
Note:
nIn some situations the unit is not active, even though
it is on.
1.3.4 i-sense infra red technology
The i-sense infra red technology makes it possible to use the
automatic CHIPS control without adding external controls
such as an outdoor temperature sensor and a door contact
switch.
Next to the discharge grille is an IR sensor which measures
the temperature in a strip of 8 planes perpendicular to the
door opening. As a result, the sensor provides the controller
with diverse information:
Note:
nThe temperature of a floor surface changes gradually.
• indoor temperature (T8)
• outdoor temperature (lowest measured value of T1, T2
and T3)
Note:
nAn outdoor temperature is only measured if the IR
sensor recognises the door as being open.
• door position
If the difference between T5 and T1, T2 or T3 is at least
3°C is, it is assumed that the door is open.
Note:
nAn outdoor temperature can only be recognised if
the unit is on and climate separation is active.
• signal for quick start or 30 minutes on (T7 and T8)
If the measured value briefly changes, it is assumed that
someone is walking below the sensor.

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i-sense conditions
In most situations, the IR sensor meets the requirements as an
information source for the auto-active control.
For correct operation, the following conditions apply:
• The IR sensor must be able to measure the temperature
on the outdoor floor:
- The sightlines must be free. (see Position of IR sensor)
- In a situation with several doors, the door at which the
sensor is aimed must also open regularly.
• The temperature of the floor must be reliable.
Factors such as underfloor heating, direct sunlight on a
dark floor or a strongly-reflective surface can make the
measurements unreliable.
• The sensor is less suitable for situations in which
extremely high outdoor temperatures (more than 10°C
higher than the indoor temperature) regularly occur and
the room makes use of air conditioning.
Position of IR sensor
When the unit is switched on for the first time, the Installa-
tion Guide will start up. At the same time, a test is also made
to see whether the IR sensor can perform the necessary
measurements.
Possibly check in advance whether the position of the unit is
suitable for use of the i-sense infra red technology.
The IR sensor measures the temperature in a strip of 8 planes
perpendicular to the door opening. In order to be able to
make use of the i-sense infra red technology, at least 1 com-
plete plane must be able to measure the temperature on the
outdoor floor.
The sightlines of the sensor can be limited by:
• structures and objects above the door opening (angle α).
• position of the threshold in relation to the unit (angle β).

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Check whether the IR sensor can measure the outdoor tem-
perature:
1. Measure angle α
Note:
nTake account of elements that can block the angle
(exit sign, door control system and suchlike)
-If angle α< 16° (H1:B1 < 3.5):
The IR sensor does not measure the outdoor tempera-
ture.
Change the position of the unit or use an alternative
for the measurement of the outdoor temperature.
-If angle α≥16° (H1:B1 ≥3.5):
Measure angle β.
2. Measure angle β.
3. Check in the table that angle βdoes not exceed the maxi-
mum value corresponding to the measured angle α.
-If angle βis too large:
The IR sensor does not measure the outdoor tempera-
ture.
Change the position of the unit or use an alternative
for the measurement of the outdoor temperature.
-If angle βis satisfactory:
The unit is hanging in a good position in order to use
the IR sensor for the i-sense infra red technology.
maximum angle βat angle α
Note:
nIf angle α< 16° then the situation is not suitable for
i-sense infra red technology
Note:
nIf angle β> 24° then the situation is not suitable for
i-sense infra red technology
ANGLE ΑANGLE ΒMAXIMUM
DEGREES H1:B1 DEGREES H2:B2
16° – 24° 2.2 – 3.5 8° 7.1
24° – 32° 2.2 – 1.6 16° 3.5
> 32° > 1.6 24° 2.2

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1.3.5 Type designation
The table below provides an overview of the available models
of the air curtain and the corresponding type designations. In
combination, the type designations constitute the type code,
for instance: -480/52SR S-150-H3-F-208/32
If some part of the manual applies to certain models only,
these will be indicated with the corresponding type designa-
tion, for example:
• S: models with capacity S
• 150: models with discharge width 150
• H: water-heated models
• E: electrically-heated models
• F: free-hanging models
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.
Explanation of the type code
T
YPE CODE ELEMENT DESIGNATION MEANING
product series SR general designation for the series
SRV for connection to Daikin VRV system (‘multi’)
SRQ for connection to Daikin ERQ system (‘pair’)
capacity S short range
M medium range
Llongrange
length 100, 150, 200 or 250 discharge length in cm
battery type H3 water heating
E electrical heating
A without heating
DK heating with Daikin direct expansion system
model F free-hanging model
R recessed model
R(O) recessed model without grille plenum
C cassette model
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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1.3.6 Type plate
The type plate is located at the left on the intake side of the
unit.
Designations on the type plate
1.3.7 Field of application
Observe the following limits for the unit:
Application limits for all models
DESIGNATION MEANING
Type complete type code of the unit
Code configuration code
Noserial number, production week and
year
Mweightofunit
Medium medium
pmax maximum permissible operating pres-
sure
Capacity Index Daikin capacity index
U power supply voltage
Imax max. current
Pmotor max. power consumption by fans
Pheating For electrically heated models:
max. power consumption by heating
element
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 (140 °F)
50 °C (122 °F)

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Parameters of use for water-heated models
Caution:
c(257 °F/16 bar)
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, outdoors or in very
dusty or aggressive air conditions.
Warning:
wElectrical models may not be used in wet
environments.
Biddle shall not be held liable for damage caused by
use in such situations.
Sound levels
The emission sound pressure level at 3 m (10 ft.) distance
from the unit is lower than 70 dB(A).
1.3.8 Modifications and changes
Without the approval of Biddle, no changes or modifications
may be made to the unit that could adversely affect safety.
Heating medium water with max.
20% glycol
Maximum operating pressure and tem-
perature
6 bar at 110°C
Maximum valve pressure
difference
type S/M 0.5 bar
type L 1.0 bar

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1.4 Components and accessories
1.4.1 Components supplied
For all models:
• suspension rails (2 per unit, 3 with models 250)
• operating package:
-b-touch control panel (able to control a maximum of 10
units);
- Biddle control cable, available in various lengths;
With free-hanging models (type F):
•setofsidecaps
1.4.2 Accessories
• wall bracket set (‘Standard’ or ‘Design’);
• threaded rod lining;
• door contact switch;
• external outdoor temperature sensor
• filter sensor (pressure sensor) in the unit to measure filter
contamination;
•b-connect communication module.
1.4.3 Components not supplied
The following components required for installation must be
obtained from third parties:
• threaded rods (M8)
• other cabling
1.4.4 Daikin components
The following Daikin components are required for models that
are to be connected to a Daikin direct expansion system:
• outdoor unit
•optional, only possible with a VRV system:
one or more indoor units
• Daikin control panel
• connection materials, such as cooling pipes, wiring, etc.:
see the Installation Manual for the outdoor unit

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Caution:
cThe control system and the capacity index of the
Daikin outdoor unit must correspond to those of
the Biddle air curtain.
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.
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.

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4. For models intended for connection to a Daikin
direct expansion system:
turn the Daikin system off and disconnect the mains sup-
ply from the Daikin external unit.
5. Disconnect the mains supply (remove plug from the power
socket or set the isolation switch to OFF).
6. For water-heated models:
shut off the central heating feed (if possible).
Caution:
cFor models to be connected to a Daikin direct
expansion system:
water may be present in the inspection panel if the
system is, or was recently, running in defrost mode.
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:
1.5.2 "Safety issues relating to installation, maintenance and ser-
vicing" on page 17
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 16
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.
2. For water-heated models (type H):
connect the unit to the central heating system.

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3. For models to be connected in a Daikin direct
expansion system:
install the Daikin components in accordance with the rele-
vant Installation manuals.
- outdoor unit;
-if applied in your system:
indoor unit(s);
- control panel.
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. For models to be connected to a Daikin direct
expansion system:
connect the unit to the Daikin system.
8. 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.