Manual
Comfort Air Curtain
Model DF
Version 3.0 - North America
Original Manual
a
English
en
COMFORT AIR CURTAIN
. . . 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 Restrictions on use 9
1.5 Safety instructions 10
2 Installation 12
2.1 Safety instructions 12
2.2 Inspection on delivery 12
2.3 General working method 12
2.4 Hanging the unit up 14
2.5 Connecting the unit to the central heating system 16
2.6 Connecting the unit to the mains power supply 18
2.7 Installing the control panel and external controls 21
2.8 Unit finishing 27
2.9 Switching on and checking operation 29
3Operation 30
3.1 General 30
3.2 Starting and stopping 30
3.3 Adjusting the strength of the air curtain 31
3.4 Adjusting heating 31
4 Maintenance 33
4.1 Cleaning the unit 33
4.2 Scheduled maintenance 33
5Faults 34
5.1 Safety instructions 34
5.2 Resolving simple problems 34
5.3 Remedying faults 35
6Service 39
6.1 Safety instructions 39
6.2 Access 39
6.3 Fuses 42
6.4 Temperature cut-out 43
6.5 Biddle control cable composition 43
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DF MANUAL
7 Dismantling 44
8 Addresses 45
Keywords 46
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Note:
Caution:
Warning:
Danger:
1. . Introduction
1.1 About this manual
This manual describes the installation, operation and maintenance of the comfort air curtain model DF. The manual also
provides instructions and information about servicing.
1.2 How to read this manual
1.2.1 Designations used in the manual
The following symbols are used in the manual:
n Refers to an important section in the text.
c If you do not carry out the procedure or action
correctly, you may cause damage to the unit.
Follow the instructions precisely.
w If 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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d Is used to designate actions that are not
permitted.
Ignoring this prohibition may lead to serious
damage or to accidents resulting in physical
injury.
DF MANUAL INTRODUCTION
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.
S
YMBOL DESCRIPTION
w You have accessed a section of the unit with components carrying a volt-
age.
Access restricted to qualified maintenance staff only.
Caution is required.
w This surface or component may be hot. Risk of burns on contact.
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1.3 About 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.
1.3.1 Application and operation of the air curtain
The air curtain is designed to separate indoor and outdoor climates. The unit draws air from the room and discharges it,
either heated or not, across the width of the doorway. The air
curtain removes the undesired effects of an open door by
either reducing the exchange of indoor and outside air, by
heating the entering air, or a combination of the two.
Mounting methods
The free-hanging model is designed for free, visible installation
above the door.
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Warning:
INTRODUCTION COMFORT AIR CURTAIN
The recessed model is designed for integration into a false
ceiling or into a cove, 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 and with easy
access to the unit.
Other versions and intended use.
We can supply versions for non-standard applications on
request.
w Applications other than those described
above are deemed to be ‘used other than for
the intended purpose’. Biddle is not liable for
damage or loss resulting from improper
usage. Proper usage also entails strict
adherence to the instructions provided in this
manual.
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DF MANUAL INTRODUCTION
1.3.2 Type designation
Type designations, when combined, form a unit type code, e.g.:
DF S-100-W-F-230/22
DF M-150-E-C-230/22
Different combinations may arise.
Explanation of the type code
T
YPE CODE ELEMENT DESIGNATION MEANING
product series DF air curtain
capacity S small
Mmedium
length 100, 150, 200,
250
discharge length
(cm)
battery type W hot water
E electrical
A zonder verwarm-
ing
(Ambient)
model F free-hanging
model
C cassette model
R recessed model
mains power supply 208/32 208V, three-phase
(without neutral
wire), 60 Hz
230/22 230V, split phase,
60 Hz
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INTRODUCTION COMFORT AIR CURTAIN
1.3.3 Type plate
The type plate is located on the top of the unit.
Example of a type plate Designations on the type plate
DESIGNATION MEANING
Type complete type code of the unit
Mweight of unit
P
max
U power supply voltage
I
max
P
motor
P
heating
For water-heated models:
max. permissible operating pressure
max. current
max. power consumption by fans
For electrically heated models:
max. power consumption by heating
element
1.3.4 CE declaration
The unit is compliant with the applicable CE standards. The
complete CE Declaration of Conformity can be found at:
www.biddle.info
1.3.5 Modifications and changes
Without the approval of Biddle, no changes or modifications
may be made to the unit that could adversely affect safety.
1.3.6 Components and accessories
For all models:
• control panel (supplied separately – can be used for multiple units)
• control cable – Type RJ4 (supplied separately)
• optional:
door contact switch (supplied separately)
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DF MANUAL INTRODUCTION
Danger:
For water-heated models (Type W):
• valve for water-side control (supplied separately)
For recessed models (Type R):
• telescopic discharge duct (supplied)
• optional:
inlet grille for installation in alcove (supplied separately)
1.4 Restrictions on use
1.4.1 User environment
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• The unit is only to be used indoors.
• The unit is suitable only for dry and non-dusty environments.
• The unit is not to be used in an environment where corrosive or chemically aggressive gases are present.
• The unit is suitable for ambient temperatures from 0°C to
40°C (32°F to 104°F).
These restrictions also apply to the control unit and/or control panel.
1.4.2 Required skills
• You must be technically qualified to install, maintain or service this equipment in accordance with local legislation,
regulations and standards.
• For operation in daily use, no special skills are required.
• The unit is not intended for use by children or people with
an intellectual disability.
d NEVER attempt to perform installation,
maintenance, or servicing work on the unit
unless you are sufficiently qualified.
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Warning:
Warning:
Warning:
Caution:
Danger:
Warning:
INTRODUCTION COMFORT AIR CURTAIN
1.4.3 Application limitations with water heating
Application limitations for units with water heating
Heating medium water with max.
20% glycol
Max. water supply temperature 90°C (194°F)
Max. discharge temperature 70°C (158°F)
Maximum operating pressure 8 bar (116 psi)
1.5 Safety instructions
1.5.1 Safety in use
w Do not put any objects into the inlets and
outlets.
w Do not obstruct the unit’s inlets or outlets.
w The upper surface of the unit becomes hot
during operation.
c In exceptional situations, water may run out of the
unit. Therefore, do not place anything under the unit
that could be damaged as a result.
1.5.2 Safety issues relating to installation, maintenance and servicing
d The unit may only be opened by qualified
technical staff.
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w Perform the following actions before opening
the unit:
DF MANUAL INTRODUCTION
Caution:
Warning:
1. Switch the unit off using the control panel.
2. Wait until the fans have stopped.
3. Allow the unit to cool down.
c The heat exchanger or, as the case may be, the
heating elements, can get very hot. Moreover, the
fans may continue to rotate for a while.
4. Disconnect the mains power supply (remove plug from
power socket or set the isolation switch to OFF).
5. If you are going to conduct maintenance or repairs on electrical components: switch the mains power supply group
off.
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6. For water-heated models:
Shut off the central heating feed (if possible).
w The fins of the heat exchanger are sharp.
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Warning:
Warning:
2. . Installation
2.1 Safety instructions
w Installation activities may only be performed
by technical staff qualified for this purpose.
2.2 Inspection on delivery
2.3 General working method
w Before starting installation: read the safety
instructions.
See also:
1.5 "Safety instructions" on page 10
• Check the unit and the packaging to ensure 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.
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2.3.1 Sequence of operations
Biddle recommends working as follows when installing the
unit:
1. Hang the unit up.
2. For water-heated models:
connect the unit to the central heating system.
DF MANUAL INSTALLATION
Caution:
Note:
Note:
3. Connect the unit to the mains power supply.
c Make sure the unit’s power supply voltage matches
the local mains voltage.
The unit’s power supply voltage is displayed on the
type plate.
4. Install the control panel and (any optional) connections to
external controls.
5. Complete appliance installation.
6. Turn the mains power supply on and check that the unit is
working properly.
General instructions
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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.
n Make 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.
n During the installation period, protect the unit
against damage and penetration of dust, cement, etc..
You can, for instance, use the packaging for
protection.
See also:
2.4 "Hanging the unit up" on page 14
2.5 "Connecting the unit to the central heating system" on
page 16
1 "Connecting the mains supply" on page 1
2.7 "Installing the control panel and external controls" on
page 21
2.8 "Unit finishing" on page 27
2.9 "Switching on and checking operation" on page 29
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INSTALLATION COMFORT AIR CURTAIN
2.4 Hanging the unit up
2.4.1 Determining the location of the unit
• Make sure that the structure from which the unit is about
to be suspended can bear the weight of the unit. The unit’s
weight is marked on its type plate.
• Note the following dimensions:
- The unit must be at least as wide as the door opening
(dimension b).
- Position the unit as near to the doorway as possible.
- Position the unit as close to the top of the door as pos-
sible.
w The minimum installation height (dimension
h) is 1.8 m (6 ft).
w The top of the unit may get hot. The unit
should be placed with at least 25 mm(1")
ceiling clearance (dimension x).
- If the unit is mounted against the ceiling:
Make sure that air can enter the unit freely above the
unit.
See also:
1.3.3 "Type plate" on page 8
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DF MANUAL INSTALLATION
2.4.2 Suspending and securing the unit
1. Position the four M8 (metric) screw threads. Make sure
the thread rods are perpendicular.
Dimensions for free-hanging and recessed units.
SIZE TYPE DIMENSIONS
a all DF F, R as needed
b all DF F, R 35 mm(1 3/8")
c all DF F, R 290 mm(11 13/32")
d DF 100-F, 100-R 896 mm(35 9/32")
DF 150-F, 100-R 1396 mm(54 31/32")
DF 200-F, 200-R 1896 mm(74 21/32")
DF 250-F, 250-R 2396 mm(94 11/32")
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Dimensions of hole and suspension for cassette model
SIZE TYPE DIMENSIONS
a DF 100-C 1012 mm(39 27/32")
DF 150-C 1512 mm(59 17/32")
DF 200-C 2012 mm(79 7/32")
DF 250-C 2512 mm(98 29/32")
b all DF C 705 mm(27 3/4")
c DF 100-C 937 mm(36 7/8")
DF 150-C 1437 mm(56 9/16")
DF 200-C 1937 mm(76 1/4")
DF 250-C 2437 mm(95 15/16")
d all DF C 641 mm(25 1/4")
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Caution:
INSTALLATION COMFORT AIR CURTAIN
2. Screw a lock nut 1 onto each threaded rod.
3. Attach the unit to the threaded rods.
4. Secure the unit by tightening the lock nuts 1.
2.5 Connecting the unit to the central heating system
Only for water-heated units (type W)
See also:
6.2.2 "Opening the unit" on page 40
2.5.1 Particulars
c The central heating system’s supply and return pipes
must be attached to the correct connectors 1. On
the unit, the directions are indicated using arrows.
• Keep the connectors 1 in place by using pliers when con-
necting the pipes.
• Biddle recommends inserting a valve and a venting valve on
both pipes close to the unit.
Application limitations for units with water heating
Heating medium water with max. 20% glycol
Max. water supply
temperature
Max. discharge temperature
Maximum operating
pressure
90°C(194°F)
70°C(158°F)
8 bar(116 psi)
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DF MANUAL INSTALLATION
Note:
2.5.2 Frost protection
Take the following precautions if you install the unit in a room
where frost may occur:
• Provide for constant circulation of the water at the right
temperature;
• Add up to 20% glycol to the water when the unit is not in
operation during the wintertime;
• Or bleed the system and the unit.
2.5.3 Connecting the water-side control
1. Open the unit.
2. Connect the unit and the three-way valve to the central
heating system as shown in the diagram.
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n The diameter of the bypass pipe from Connection B
to the return pipe must be at least 22 mm(7/8").
3. Connect the valve to Terminal Block 1 as shown in the
electrical diagram.
4. Open the valve manually using the handle (Position ‘MAN’).
5. Fill and bleed the system.
6. Check the connections for leakage.
7. Return the handle to its starting position
(Position ‘AUTO’).
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Warning:
Warning:
Note:
INSTALLATION COMFORT AIR CURTAIN
2.6 Connecting the unit to the mains power supply
2.6.1 Special notes about the mains supply
For all models:
w The unit must be earthed.
w Connect unit in accordance with applicable
local requirements.
For water-heated models and models without heating:
• The unit can be switched on and off from the power supply. This requires that the control panel be configured for
this purpose.
• If, on delivery, the unit is equipped with a power sup-
ply cable with plug:
Ensure that an earthed wall socket is available no further
than 1.5 m (5 ft) from the connection side of the unit.
n The power point must remain accessible after
installation so that the unit can be disconnected for
service and maintenance.
• If the unit is not equipped with a power supply cable:
Connect the unit to the mains using a power cable (not
supplied). Maximum ratings are specified on the type plate.
It must be possible to disconnect the unit from the mains
supply. You may choose to use either a plugged power supply cable or an isolation switch.
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DF MANUAL INSTALLATION
Warning:
Warning:
Note:
Electrically-heated models:
w Do not turn unit ON/OFF at its power supply.
Use the control panel.
• Connect the unit to the mains using a power cable (not
supplied). Maximum ratings are specified on the type plate.
• An isolation switch (not supplied) must be fitted between
the unit and the power supply. This switch must:
-be all-pole;
- have a contact separation of at least 3 mm (1/8");
- be positioned no farther than 4 m (13 ft) from the con-
nection side of the unit.
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See also:
1.3.3 "Type plate" on page 8
2.6.2 Fuse ratings
w Each unit should be individually fused
according to the table below.
Fuse ratings
M
AXIMUM AMPERAGE ON
TYPE PLATE L1, L2 OR L3
≤ 10 A 16 A
≤ 15 A 20 A
≤ 20 A 25 A
≤ 25 A 35 A
≤ 35 A 50 A
≤ 50 A 63 A
≤ 65 A 80 A
≤ 80 A 100 A
≤ 102 A 125 A
MAXIMUM FUSE VALUE A
n A single fuse may only be used for multiple units if
they draw a total current of less than 10 A.
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Caution:
INSTALLATION COMFORT AIR CURTAIN
2.6.3 Connecting the unit
For units supplied without a mains power cable/plug only:
w Only connect the unit if you are qualified to
work on three-phase power systems.
Make sure the mains power supply group with
which you are working has been turned off.
1. Fit the isolation switch and connect it to the power supply.
2. Open the unit.
3. Feed the power cable through the cable gland 1.
4. Connect the cable to the unit’s power terminal 2 as
shown in the wiring diagram.
5. Connect the power supply cable to the isolation switch.
c Do not switch the mains supply on yet.
See also:
6.2.2 "Opening the unit" on page 40
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DF MANUAL INSTALLATION
Note:
Note:
Note:
2.7 Installing the control panel and external controls
2.7.1 Control panel details
Posit ioning
• You may fix the control panel either to the wall or to a
standard junction box.
Cabling
n Take the following into account, otherwise faults may
occur:
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- The control cable between the control panel and the
(first) connected unit may not be longer than 30 m
(98 ft).
- Keep control cables away from electromagnetic fields
and interference sources such as high-voltage cables
and fluorescent-light starters.
- Lay control cables out straight or roll them bifilarly
by folding cables in half before rolling them. This significantly reduces inductance.
- Do not remove the dummy plug, unless otherwise
stated.
n Use Biddle control cables only (Type RJ4). Standard
modular telephone cable is NOT suitable.
Multiple units operated from one single control panel
• A maximum of 8 units can be connected to a single control panel.
n The RSR receiver module counts as one unit.
• Units are daisy chained using Biddle control cables and
Connectors
• The total length of the control cables must not exceed 30
m (98 ft). If the distance is too great, an additional control
panel must be connected.
• Configure any one unit as a master. The sequence of the
connected units is not important.
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E and G.
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Note:
INSTALLATION COMFORT AIR CURTAIN
• Connect the control panel and external control components to the master unit.
n Do NOT remove the external control input bridges
on the other units.
Units with two control circuit boards
Only the following types: DF S-250-E, M-250-E.
These units have two control circuit boards that each control
a part of the unit. The control circuit board on the connection side has been configured as master on delivery.
You can connect one or more of these units to a single control panel in combination with other units. The following
applies in this regard:
• A unit with two control circuit boards counts as two units.
• A unit with two control circuit boards is always the master unit. Units with a single control circuit board must be
configured as normal units.
• If several units have two control circuit boards, then one of
these units is configured as the master unit. All control circuit boards in all other units must be configured as normal
units.
• The control panel and the external control components
must always be connected to the master unit.
2.7.2 Control panel settings
Optional
Several dip switches are located inside the control panel.
These allow the control panel to be configured.
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DF MANUAL INSTALLATION
Control panel settings
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N
1 unit remains turned off
POSITION OFF
O.
(FACTORY SETTING)
after supply voltage
interruption
POSITION ON
unit continues running in
the same mode after
supply voltage interruption
2 fans continue running as
long as the unit is turned
fans do not run if heating
is not required
on
3 heating is turned OFF
once the set room temperature has been
heating is always on as
long as the unit is turned
on
reached
4 display heating settings
using multiple LEDs
display heating settings
with only one LED (does
not affect operation)
2.7.3 External control input
A door switch and/or building management system can be
connected to the input.
• The connector is located on the control circuit board
(INHIBIT connector). This connector has been fed through
to Connector 1 on the outside of the unit.
• This connector is fitted with a bridge on delivery.
• The input is suitable for potential-free switches.
Working of the input
contact closed (or bridged) unit operates normally
contact open unit remains off
resistor across contact
(3.3 kΩ)
unit working, but heating
remains turned off (summer
mode)
See also:
2.7.5 "Unit settings" on page 24
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INSTALLATION COMFORT AIR CURTAIN
2.7.4 Fault signal output
A building management system (BMS) can be connected to the
output.
• The connector is located on the control circuit board
(HEALTHY connector).
Output operation
24 VDC unit operates normally
no power supply voltage
2.7.5 Unit settings
temperature cut-out has turned the
heating off or the unit is not being powered
Optional unless otherwise stated
Several dip switches 1 are located on the unit’s control circuit board. These allow the unit to be configured.
Control circuit board settings
OSITION OFF
P
NO.
(
FACTORY SETTING)
1 fan and heating mode
independently adjustable
2 fans continue running for
two minutes after shutdown for cooling purposes
3 unit operates normally unit configured as a mas-
4 only heating is turned off
when the temperature
cut-out activates.
POSITION ON
high heating setting disabled for low and medium
fan settings
d not permitted
for electrically
heated units
fans stop immediately
after shutdown
ter unit
heating AND fans shut
down when the temperature cut-out activates.
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DF MANUAL INSTALLATION
Master settings
Only if multiple units have been connected to a single
control panel
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all units configured as normal
units
external control
input
automatic temperature control
2.7.6 Mounting and connecting control panel
1. Open the control panel.
2. Feed the control cable through an opening in the rear
plate.
only connected
unit responds
each unit is
independently
controlled
one unit configured as a master
unit
all units follow
the master
all units are
controlled by
the master
3. Attach the rear plate to the wall.
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INSTALLATION COMFORT AIR CURTAIN
4. Secure the cable in a tension-free state.
The cable should protrude by approx. 9 cm(3 1/2").
5. Optional:
Set the dip switches on the front plate.
6. Attach the control cable’s connector to the PCB.
7. Replace the front plate onto the rear plate.
See also:
2.7.2 "Control panel settings" on page 22
6.5 "Biddle control cable composition" on page 43
2.7.7 Connecting control panel to unit
The control panel is connected to one of the two modular
unit connectors (marked with Symbols
The two sockets are identical.
E and H).
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DF MANUAL INSTALLATION
2.8 Unit finishing
2.8.1 Edge finishing
For cassette models (Type DF C) only:
1. Make a hole in the ceiling for the unit.
Dimensions of hole and suspension for cassette model
SIZE TYPE DIMENSIONS
a DF 100-C 1012 mm(39 27/32")
DF 150-C 1512 mm(59 17/32")
DF 200-C 2012 mm(79 7/32")
DF 250-C 2512 mm(98 29/32")
b all DF C 705 mm(27 3/4")
c DF 100-C 937 mm(36 7/8")
DF 150-C 1437 mm(56 9/16")
DF 200-C 1937 mm(76 1/4")
DF 250-C 2437 mm(95 15/16")
d all DF C 641 mm(25 1/4")
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2. Attach the angle sections using the screws supplied along
the unit’s edges.
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Let op:
INSTALLATION COMFORT AIR CURTAIN
2.8.2 Attaching discharge section
For recessed models (Type DF R) only:
1. Make a hole in the ceiling for the discharge.
B
C
Discharge section hole dimensions
SIZE TYPE DIMENSIONS
a R 90 mm (3 17/32")
b 100-R 970 mm (38 3/16")
150-R 1470 mm (57 7/8")
200-R 1970 mm (77 9/16")
250-R 2470 mm (97 1/4")
2. Attach the two angle sections 1 to the unit along the dis-
charge openings' edges using the screws supplied.
3. Extend the telescopic discharge grille 2 into the unit’s dis-
charge opening until it reaches the required height.
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4. Attach the discharge duct to the angle sections 1 using
the screws supplied.
c For the unit to work properly, it is essential that
there are sufficient openings in the alcove or ceiling
for air to enter the unit.
DF MANUAL INSTALLATION
2.9 Switching on and checking operation
For all models:
1. Connect all units.
2. Check the following connections:
- power supply;
- control cables between control panel and unit (or
units);
- If applicable:
external control components.
3. Switch the mains power supply on and/or plug in all connected units.
4. Start up the air curtain using the control panel.
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5. Check that air is being blown out of all units across their
full width.
For water-heated models:
1. Check whether the heat exchanger and the control valve
have been connected correctly.
2. Make sure that the central heating system has been turned
on.
3. Turn the heating on using the control panel.
4. Check whether the airflow is getting hotter for all connected units. This may take some time.
5. Vent the heat exchanger if necessary.
Electrically-heated models:
1. Turn the heating on using the control panel.
2. Check whether the airflow is getting hotter for all connected units across their full width.
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Note:
3. . Operation
3.1 General
All regular features can be operated from the control panel.
The control panel allows you to:
• start and stop the air curtain
• set the required heating capacity
3.2 Starting and stopping
• set the required room temperature
• turn the heating on and off
• adjust the air curtain’s airflow rate
If multiple units are connected to a single control panel:
The settings on the panel are the same for all units.
Press Button 1 repeatedly to start and stop the air curtain,
and to select the required temperature control mode:
• The air curtain is running in manual mode –
is on.
• The air curtain is running in automatic mode –
is on.
• The air curtain is not running – all LEDs are off.
MANUAL LED
AUTO LED
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n The unit continues to run at a low fan speed after it
has been turned off to allow it to cool down
See also:
3.4.1 "Manual temperature control" on page 31
3.4.2 "Automatic temperature control" on page 32
DF MANUAL OPERATION
Note:
Caution:
3.3 Adjusting the strength of the air curtain
You can select three air curtain airflow settings:
• Button 4: low fan
• Button 5: medium fan
• Button 6: high fan
n To achieve maximum climate separation for
minimum energy consumption, Biddle recommends
selecting the lowest setting at which no draughts
occur.
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3.4 Adjusting heating
3.4.1 Manual temperature control
In manual mode, heating can be set to full or reduced capacity, or turned off.
• Press Button 2 to reduce the heating setting by one level.
• Press Button 3 to increase the heating setting by one
level.
Control panel LEDs indicate the air curtain’s heating setting.
Room temperature when heating
c Heating may not be used when the room
temperature is higher than 25°C (77 °F), otherwise
faults may occur.
Heating needs to be turned off manually if temperature settings are being adjusted manually.
Heating is turned off automatically when using automatic temperature control.
See also:
3.4.3 "Turning off heating" on page 32
Manual version 3.0 - North America (15-07-2014) en-31
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OPERATION COMFORT AIR CURTAIN
3.4.2 Automatic temperature control
In automatic mode, the unit measures the air inlet temperature and automatically selects the required heating setting to
adjust the air temperature to the configured level.
• Set the required temperature using Buttons 2 and 3
The LEDs display the temperature in a range from 18 °C to
25 °C (64 °F to 77 °F). This temperature is measured at the
unit’s air inlet and may deviate slightly from actual room temperature.
3.4.3 Turning off heating
You can turn off heating to achieve climate separation without
actually heating the air, e.g. if indoor air is being cooled and is
colder than outside.
This can be configured in both manual and automatic modes.
To turn heating off:
• Press Button 2 until blue LED 7 illuminates.
To turn heating on:
• Press Button 3: the blue LED turns off and one or more
of the yellow LEDs turns on.
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4. . Maintenance
Caution:
4.1 Cleaning the unit
You may clean the exterior of the unit with a damp cloth and a
domestic cleansing agent. Do not use any solvents.
c Make sure no water runs into the unit.
en
4.2 Scheduled maintenance
Biddle recommends to have the following inspection and maintenance works performed by an installer or other technical
expert each year.
• Check that the heat exchanger and the electrical heating
element are clean. Settled dust may cause unpleasant
smells.
•Gently remove dust with a vacuum cleaner.
• Check whether fans are working properly.
Manual version 3.0 - North America (15-07-2014) en-33
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Danger:
Warning:
5. . Faults
5.1 Safety instructions
d All work on the inside of the unit may only be
carried out by appropriately qualified
technical staff.
w Before you begin: read the safety instructions.
See also:
1.5 "Safety instructions" on page 10
5.2 Resolving simple problems
If you suspect a fault, first try to resolve the problem, using
the table below. You need not be an expert for this.
Solutions to simple problems
P
ROBLEM PROBABLE CAUSE WHAT TO DO
There is a draught Air curtain is turned off. Turn the air curtain on.
Air curtain is adjusted too low. Switch the air curtain to a higher
operating strength.
Air curtain is adjusted too high. Turn the air curtain down.
The unit’s heater has been turned
off.
The heater is adjusted too low. Turn the heater up.
It is too hot. Space heating and air curtains are
colletively producing too much
heat.
It is too cold. Room is too cold. 1. Turn space heating up.
It is too noisy. Air curtain is at highest setting. Turn the unit down.
Turn the heater on.
1. Turn space heating down.
2. Turn the unit down.
3. Turn the heater down.
2. Turn the unit up.
3. Turn the heater up.
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DF MANUAL FAULTS
P
ROBLEM PROBABLE CAUSE WHAT TO DO
The unit is not working and the
control panel LEDs are off.
The air curtain is switched off but is
still working.
The unit is switched off. Turn the unit on.
The unit has no power supply. Check the power supply:
• is the plug in the socket?
• Is the isolation switch on?
• is there a voltage present?
The unit cools off automatically. This is not a fault. The unit will nor-
mally shut down automatically
within two minutes.
See also:
3.2 "Starting and stopping" on page 30
3.3 "Adjusting the strength of the air curtain" on page 31
3.4 "Adjusting heating" on page 31
en
5.3 Remedying faults
If you suspect a fault:
1. Check whether the problem can be easily resolved.
2. Try to resolve the problem using the table below. Technical expertise is needed for this.
3. If you have identified a fault, and the previous section does
not provide a solution, then contact the supplier.
Manual version 3.0 - North America (15-07-2014) en-35
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FAULTS COMFORT AIR CURTAIN
Fault rectification (for qualified technical staff only)
PROBLEM POSSIBLE CAUSE RESOLUTION
The control panel works normally
but the unit does not respond.
The unit is not working and the
control panel LEDs are off.
One fan does not work. The fan is defective or not receiving
The power supply to the fans is cut. 1. Check the fuses on the control
circuit board.
2. For water-heated units and for
units at ambient temperature,
check the extra fuses in the unit.
3. Check wiring between the control circuit board and the fans.
The connection between the control panel and the control circuit
board is not correct.
The contact on the external control
input is open.
The unit is not receiving power. Check power supply connections,
The connection between the control panel and the control circuit
board is not correct.
The control circuit board is not
working.
The control panel is defective. Check the control panel by con-
a power supply.
1. Check the control cable.
2. Check wiring between
Connectors
unit’s control circuit board.
1. If no external control is con-
nected:
Check the bridge at the input.
2. If an external control has
been connected (door contact switch or BMS):
Check the operation of the control component.
3. Check wiring and connection of
control components to the
input.
4. Check wiring between the input
and the control circuit board
(INHIBIT connector).
wiring and fuses.
1. Check the control cable.
2. Check wiring between
Connectors
unit’s control circuit board.
1. Check the control circuit board’s
fuse.
2. For water-heated units and for
units at ambient temperature,
check the extra fuses in the unit.
3. Check the power supply cable.
4. Replace the control circuit
board.
necting another unit. Replace the
control panel if it is not working.
1. Check the wiring of the fan.
2. Replace the fan.
E and H and the
E and H and the
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DF MANUAL FAULTS
PROBLEM POSSIBLE CAUSE RESOLUTION
Fans are not working at a particular
speed level.
Not all connected units are working
(or only partially).
If several units are connected to
a single control panel:
The units (or part of a unit) are not
responding uniformly to the external control (door contact switch or
BMS).
The unit is blowing out cold air. For water-heated units:
The connection at the particular fan
speed level is faulty.
The control panel is not communicating with one or more connected
units (or with one of the control
circuit boarda in a dual-control circuit board unit).
The master unit (or the master
control circuit board in a dual-control circuit board unit) has not been
configured properly.
The contact on the external control
input is open.
The unit is not being supplied any
hot water.
Check the fans’ wiring.
1. Check that power is supplied to
all connected units.
2. Check the control cables:
• are they connected and free
from breaks?
• are they stretched out or
rolled up neatly? (folded double
before being rolled up)
• are they shielded from
magnetic fields?
3. Check the control circuit board’s
fuses in each connected unit.
4. For water-heated units and for
units at ambient temperature,
check the extra fuses in all units.
5. Check wiring between
Connectors
control circuit board(s).
Check that the unit to which the
external control has been connected has been configured as the
master.
For dual-control circuit board
units:
Check whether the control circuit
board on the connection side has
been configured as the master.
Check the input bridges on the
units to which no external controls
have been connected.
For dual-control circuit board
units:
Check the input bridge on the secondary control circuit board.
1. Check the central heating system.
2. Check whether the valve is
allowing hot water to pass.
3. Check valve drive and inlet temperature sensor wiring and connectors.
4. Take the drive from the valve
and check the interior for
mechanical operation and
defects.
E and H and the
en
Manual version 3.0 - North America (15-07-2014) en-37
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FAULTS COMFORT AIR CURTAIN
PROBLEM POSSIBLE CAUSE RESOLUTION
The unit (or part of the unit) is
blowing cold air.
The LEDs on the control panel are
flashing.
Discharge air is not hot enough. For water-heated units:
The unit continues to blow hot air. For water-heated units:
The unit always blows cold air in
automatic mode.
If multiple units have been connected to a single control panel:
The units warm up unevenly in
automatic mode.
For electrically heated units:
The temperature cut-out has
turned the unit (or part of the unit)
off to prevent overheating.
w This may indicate a seri-
ous fault that may be
hazardous.
This fault can also occur if the unit
has been powered down for a short
while.
The supply water temperature is
too low.
For electrically heated units:
One or more phases on the power
supply have tripped out.
The valve has been opened manually.
The temperature sensor is not
working.
The temperature is set independently in each unit.
1. Check and reset the temperature cut-out.
2. Check the fans. If one or more
fans do not work, check:
• the fan wiring;
• control circuit board connections
• control circuit board fuses
3. If these are in order, then
replace the fan.
Raise the central heating system’s
water temperature.
1. Check the power supply’s fuses
and electrical connections.
2. Check the control thermostat.
These should be set to
60°C (140°F).
Turn the handle on the valve to the
‘AUTO’ position.
1. Check Connector J3 on the control circuit board.
2. Replace the sensor.
Configure one unit as a master.
en-38
See also:
2.7.2 "Control panel settings" on page 22
2.7.3 "External control input" on page 23
2.7.5 "Unit settings" on page 24
6.3 "Fuses" on page 42
6.4 Temperature cut-out op pagina 43
6. . Service
Warning:
Warning:
6.1 Safety instructions
en
w Servicing activities may only be carried out by
personnel who are technically qualified to do
so.
6.2 Access
w Before you begin: read the safety instructions.
See also:
1.5 "Safety instructions" on page 10
6.2.1 Removing the front panel
For free-hanging models only:
1. Remove the locking bolts 1 from the front panel 2.
2. Remove the front panel 2 from its suspension hooks 3.
Manual version 3.0 - North America (15-07-2014) en-39
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SERVICE COMFORT AIR CURTAIN
6.2.2 Opening the unit
For fee-hanging and recessed models with electrical
heating (Types DF E-F, E-R) and models without heating (Types DF A-F, A-R):
1. Remove the front panel, if necessary.
2. Remove the inlet grille 4.
For cassette models (Type DF C):
1. Push the inlet grille’s left- and right-hand latches towards
each other. Use a screwdriver to do this.
2. Twist the inlet grille open and allow to hang freely.
3. Remove the inlet grille, if necessary, by opening the latches
on the other side.
en-40
DF MANUAL SERVICE
Caution:
For all models:
1. Remove the screws along the edge of the panel.
2. Pull the panel a little forward and take it away.
c The entire panel comes free once pulled forward –
make sure it does not fall.
en
6.2.3 Removing the control circuit board
With all units:
1. Open the unit.
For water-heated units and units without heating:
1. Remove the screws 1 on the top of the unit.
Manual version 3.0 - North America (15-07-2014) en-41
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SERVICE COMFORT AIR CURTAIN
2. Remove the control circuit board 2.
3. Disconnect all unit-connected connectors and grounded
connections from the control circuit board.
For electrically heated units:
6.3 Fuses
1. Disconnect all connectors and earth contacts connecting
the unit and control circuit board 1.
2. Remove the control circuit board.
See also:
6.2.2 "Opening the unit" on page 40
The unit’s control circuit board has two fuses – 1 and 2. Values have been marked on the PCB.
Electrically heated units have an extra fuse 3. The value is
indicated on the fuse.
Units that are water-heated and (ambient) units without heating have two extra fuses in the unit 4. The value is indicated
on the fuses.
en-42
DF MANUAL SERVICE
Note:
6.4 Temperature cut-out
Electrically-heated models only:
The unit has been fitted with a temperature cut-out to prevent too much heating.
For the following types: DF S-250-E, M-250-E.
These units have two temperature cut-outs. These protect
each section of the unit and can operate independently of one
another.
6.4.1 Resetting the maximum temperature cut-out
1. Turn the unit off.
2. Allow the unit to cool down for 10 minutes.
en
3. Push back the temperature cut-out pin 1.
n Remove the front panel, if necessary.
4. Check unit connections.
5. Turn the unit on.
6. Check whether fans are working properly.
See also:
6.2.2 "Opening the unit" on page 40
6.5 Biddle control cable composition
The control system cable is made up as follows:
• The plugs are modular, type 4P4C connectors.
• Connectors are untwisted, i.e. at both cable ends cores are
connected to the same pin.
Manual version 3.0 - North America (15-07-2014) en-43
en
7. . Dismantling
The dismantling of the installation and the handling of the
coolant, oil and other components must be carried out by a
qualified fitter in accordance with the relevant local and
national legislation and regulations.
By ensuring that this product is disposed of in the correct
manner, you are helping to prevent potential negative consequences for the environment and public health. For more
information about this, please contact your supplier or the relevant government authority.
en-44
8. . Addresses
If you have any comments or queries relating to this product,
please do not hesitate to contact your Biddle branch.
en
Biddle bv
P. O . B o x 1 5
9288 ZG Kootstertille
The Netherlands
T +31 (0)512 33 55 55
E info@biddle.nl
I www.biddle.nl
Manual version 3.0 - North America (15-07-2014) en-45
Biddle Air Systems Ltd.
11 King St. Unit #3
Barrie, ON L4N 6B5
Canada
T 705 797 0007
E biddle@biddle.ca
I www.biddle.ca
en
COMFORT AIR CURTAIN
. . . Keywords
A
accessories . . . . . . . . . . . . . . . . . . . . . . . . . 8
addresses . . . . . . . . . . . . . . . . . . . . . . . . . 45
application . . . . . . . . . . . . . . . . . . . . . . . . . 5
B
battery type . . . . . . . . . . . . . . . . . . . . . . . . 7
C
cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
CE declaration . . . . . . . . . . . . . . . . . . . . . . 8
central heating system . . . . . . . . . . . . . . . 16
cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . 33
control cable . . . . . . . . . . . . . . . . . . . . . . 43
control panel . . . . . . . . . . . . . . . . . . . . . . 21
control unit
connecting . . . . . . . . . . . . . . . . . . . . 26
mounting . . . . . . . . . . . . . . . . . . . . . 25
settings . . . . . . . . . . . . . . . . . . . . . . . 22
special points to note . . . . . . . . . . . 21
D
H
hanging up . . . . . . . . . . . . . . . . . . . . . 14, 15
heating
regulation. . . . . . . . . . . . . . . . . . . . . 31
switching OFF . . . . . . . . . . . . . . . . . 32
I
input
external control . . . . . . . . . . . . . . . 23
installation . . . . . . . . . . . . . . . . . . . . . . . . 12
control unit . . . . . . . . . . . . . . . . . . . 21
external controls. . . . . . . . . . . . . . . 21
M
mains power supply. . . . . . . . . . . . . . . 7, 18
maintenance. . . . . . . . . . . . . . . . . . . . . . . 33
scheduled. . . . . . . . . . . . . . . . . . . . . 33
model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
cassette . . . . . . . . . . . . . . . . . . . . . . . 6
fee-hanging. . . . . . . . . . . . . . . . . . . . . 5
installation . . . . . . . . . . . . . . . . . . . . . 6
modifications . . . . . . . . . . . . . . . . . . . . . . . 8
mounting method . . . . . . . . . . . . . . . . . . . 5
delivery inspection . . . . . . . . . . . . . . . . . . 12
designations . . . . . . . . . . . . . . . . . . . . . . . . 4
determine location . . . . . . . . . . . . . . . . . 14
discharge section . . . . . . . . . . . . . . . . . . . 28
dismantling . . . . . . . . . . . . . . . . . . . . . . . . 44
documentation. . . . . . . . . . . . . . . . . . . . . . 5
O
operation . . . . . . . . . . . . . . . . . . . . . . . . . 30
checking. . . . . . . . . . . . . . . . . . . . . . 29
output
Building Management System (BMS) 24
error message . . . . . . . . . . . . . . . . . 24
F
faults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
finishing . . . . . . . . . . . . . . . . . . . . . . . . . . 27
frost protection . . . . . . . . . . . . . . . . . . . . 17
fuse ratings . . . . . . . . . . . . . . . . . . . . . . . . 19
fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
P
problems
resolving . . . . . . . . . . . . . . . . . . . . . 34
product series . . . . . . . . . . . . . . . . . . . . . . 7
R
restrictions on use . . . . . . . . . . . . . . . . . . 9
en-46 B
DF MANUAL
S
safety instructions
installation. . . . . . . . . . . . . . . . . . . . . 12
installation, maintenance and service 10
maintenance . . . . . . . . . . . . . . . . . . . 34
service. . . . . . . . . . . . . . . . . . . . . . . . 39
usage . . . . . . . . . . . . . . . . . . . . . . . . . 10
securing. . . . . . . . . . . . . . . . . . . . . . . . . . . 15
service. . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
settings
control unit . . . . . . . . . . . . . . . . . . . . 22
unit . . . . . . . . . . . . . . . . . . . . . . . . . . 24
start. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
strength
regulation . . . . . . . . . . . . . . . . . . . . . 31
switching ON . . . . . . . . . . . . . . . . . . . . . . 29
symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 4, 5
en
T
temperature control
automatic . . . . . . . . . . . . . . . . . . . . . 32
manual. . . . . . . . . . . . . . . . . . . . . . . . 31
room . . . . . . . . . . . . . . . . . . . . . . . . . 31
type code . . . . . . . . . . . . . . . . . . . . . . . . . . 7
type designation . . . . . . . . . . . . . . . . . . . . . 7
type plate . . . . . . . . . . . . . . . . . . . . . . . . . . 8
W
water-side control . . . . . . . . . . . . . . . . . . 17
wiring diagram . . . . . . . . . . . . . . . . . . . . . . 5
working method . . . . . . . . . . . . . . . . . . . . 12
Manual version 3.0 - North America (15-07-2014) en-47
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Copyright and Trademarks
All information and drawings contained in this manual are the property of Biddle and may not be used (other than
for the purpose of unit operation), photocopied, reproduced, translated and/or communicated to third parties
without prior written permission from Biddle.
The name Biddle is a registered trademark of Biddle BV.
Warranty and liability
For the warranty and liability provisions and terms, please refer to the terms & conditions of sale and supply.
At all times, Biddle shall not be held liable for consequential damages.
Liability as regards the manual
Although great care has been taken to ensure the correct and, where necessary, complete description of the
relevant components, Biddle shall not be held liable for loss or damages as a consequence of errors and/or
imperfections in this manual.
Biddle reserves the right to alter the specifications as mentioned in this manual.
Should you nevertheless discover any errors or ambiguities in the manual, we shall be glad to learn that from you.
It helps us to improve the documentation still further.
For more information
If you have any comments or queries relating to this product, please do not hesitate to contact Biddle. You will find
the contact information for your Biddle branch in chapter 8 Addresses.
Biddle bv
P.O. Box 15
9288 ZG Kootstertille
The Netherlands
T +31 (0)512 33 55 55
E info@biddle.nl
I www.biddle.nl
Name and telephone number of installer:
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