VEAB AC22 Technical specifications

AC22
Art.nr: 172783-01
GB Installation and maintenance instruction
for air curtains
IMPORTANT: Read these instructions before the product is installed and used.
Save the instructions for future use.....................................................................................................2

2
AC22
Assembly and operating instructions
Safety
• For all installations of electrically heated products
should a residual current circuit breaker 300 mA for
re protection be used.
• Keep the areas around the air intake and exhaust gril-
les free from possible obstructions!
• CAUTION! During operation the surfaces of the unit
can be hot!
• e unit must not be fully or partially covered with
clothing, or similar materials, as overheating can result
in a re risk! (E)
• e appliance can be used by children, aged from 8
years and above, and by persons (children included)
with reduced physical, sensory, or mental capabilities,
or lack of experience and knowledge, if they have been
given supervision or instruction concerning use of the
appliance in a safe way and understand the hazards
involved.
Children shall not play with the appliance.
Cleaning and user maintenance shall not be made
by children without supervision.
Children, of less than 3 years of age, should be kept
away unless continuously supervised.
Children, aged from 3 years and less than 8 years, shall
only switch on/o the appliance, provided that it has
been placed or installed in its intended normal opera-
ting position and they have been giving supervision or
instruction concerning use of the appliance in a safe
way and understand the hazards involved. Children,
aged from 3 years and less than 8 years, shall not plug
in, regulate and clean the appliance or perform user
maintenance.
General instructions
Read these instructions carefully before installation and
use. Keep this manual for future reference.
e product may only be used as set out in the assembly
and operating instructions. e guarantee is only valid
if the product is used in the manner intended and in ac-
cordance with the instructions.
Application area
e AC22 air curtain unit is supplied without heating,
with electrical heating or hot water heating.
e AC22 is a compact air curtain, suitable for most small
entrances up to 2.2 metres in height. e air curtain has
an integrated control system and can be remotely control-
led.
Protection class for units with electrical heating: IP20.
Protection class for units without heating and units with
water heating: IP21.
Operation
Air is drawn in at the top of the unit and blown out
downwards so that it shields the door opening and mi-
nimizes heat loss. To achieve the optimum curtain eect
the unit must extend the full width of the door opening.
e grille for directing exhaust air is adjustable and is
normally angled outwards to achieve the best protection
against incoming cold air.
e eciency of the air curtain depends on the air tem-
perature, pressure dierences across the doorway and any
wind pressure.
NOTE! Negative pressure in the building considerably
reduces the eciency of the air curtain. e ventilation
should therefore be balanced.
Mounting
e air curtain unit is installed horizontally with the
supply air grille facing downwards as close to the door
as possible. Minimum distance from outlet to oor for
electrically heated units is 1800 mm. For other minimum
distances, see g. 4.
Mounting with wall brackets (g. 6)
1. Mount the brackets on the wall, see g.6A and
dimension drawing g.1. If the wall is uneven
the brackets must be compensated for this.
2. Hook on the unit at the lower edge of the brackets.
(Fig.6B-C)
3. Bend the top of the console over the unit
and slide the units screws along the rail into
the slots on the consoles, (Fig.6D). When the
bracket is bent once, it must be replaced if bent
back more than 45 °.
4. Lock the nuts against the brackets. (Fig.6E)

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AC22
Start-up (E)
When the unit is used for the rst time or after a long
period of disuse, smoke or odour may result from dust or
dirt that has collected on the element. is is completely
normal and disappears after a short time.
Connecting the water coil (W)
e installation must be carried out by an authorised
installer.
e water coil has copper tubes with aluminium louvers
and is suitable for connection to a closed water heating
system. e heating coil must not be connected to a
mains pressure water system or an open water system.
Note that the unit shall be preceded by a regulating
valve, see valve kit.
e water coil is connected on the upper side of the unit
with ø15 mm smooth copper pipe with a suitable coup-
ling or soldering. e connections to the heating coil
must be equipped with shut o valves (not included) to
allow problem free removal. Water coil is equipped with
a drain valve.
A vent valve should be connected at a high point in the
pipe system. Air valves are not included.
NOTE: Care must be taken when connecting the pipes.
Use a wrench or similar to hold the air curtain connec-
tions to prevent straining of the pipes and subsequent
water leakage during connection to water supply pipe-
work.
Adjustment of the air curtain and air ow
e direction and speed of the air ow should be ad-
justed considering the load on the opening. Pressure
forces aect the air stream and make it bend inwards
into the premises (when the premises are heated and the
outdoor air is cold).
e air stream should therefore be directed outwards to
withstand the load. Generally speaking, the higher the
load, the greater the angle that is needed.
Basic setting fan speed
e fan speed when the door is open is set using the
control. Note that the air ow direction and fan speed
may need ne adjustment depending on the loading of
the door.
* Dimensioning of external wiring shall comply with applicable regulations and local
deviations may occur.
Type Output
[kW]
Voltage
[V]
Minimum
area*
[mm2]
AC22-10-E05 5 400V3N~ 1,5
AC22-15-E08 8 400V3N~ 2,5
AC22-20-E10 10 400V3N~ 2,5
Horizontal mounting on the ceiling
readed rods, hanging brackets and ceiling mounting
brackets for ceiling mounting are available as accessories,
see accessories pages and separate manuals.
Electrical installation
e installation, which should be preceded by an om-
nipolar switch with a contact separation of at least 3
mm, should only be wired by a competent electrician
and in accordance with the latest edition of IEE wiring
regulations.
e control system is pre-installed in the air curtain.
Unit without heating
Connected via the built-in control board with 1,5 m cord
and plug.
Unit with water heating
Connected via the built-in control board with 1,5 m cord
and plug.
Unit with electrical heating
e electrical installation is made on the top of the unit,
g.2. Units are intended for permanent installation.
Power supply for heating (400V3N~) are connected to
terminal block in the internal connection boxes. 2-metre
units require dual power supplies. e largest cable dia-
meter for the terminal block is 16 mm². e cable glands
used must meet the protection class requirements. In the
distribution board it is to be indicated that ”the air cur-
tains can be supplied from more than one connection”.
See wiring diagrams.

4
AC22
Filter (W)
e water coil is protected against dirt and blockage by
an internal air lter which covers the coil face.
Service, repairs and maintenance
For all service, repair and maintenance rst carry out the
following
1. Disconnect the power supply.
2. e front hatch is removed by removing the screws
on the top of the unit and then detach the bent
edge at the bottom. (Fig.3)
3. After the service, repair and maintenance reattach
the front hatch. Place the hatch at the lower edge
with the bent edge and fasten on top with screws.
Maintenance
Unit with water heating:
e appliance lter should be cleaned regularly to ensure
the air curtain eect and the heat emission from the
device. How often depends on local circumstances. A
clogged lter is not a risk, but the appliance function can
fail.
1. Disconnect the power supply.
2. e front hatch is removed by removing the screws
on the top of the unit and then detach the bent
edge at the bottom. (Fig.3)
3. Remove the lter and vacuum clean or wash it.
If the lter is clogged or damaged, it may need to
be changed.
All units:
Since fan motors and other components are maintenance
free, no maintenance other than cleaning is necessary.
e level of cleaning can vary depending on local condi-
tions. Undertake cleaning at least twice a year. Inlet and
exhaust grilles, impeller and elements can be vacuum
cleaned or wiped using a damp cloth. Use a brush when
vacuuming to prevent damaging sensitive parts. Avoid
the use of strong alkaline or acidic cleaning agents.
Overheating
e air curtain unit with electric heater is equipped with
an overheat protector. If it is deployed due to overhea-
ting, reset as follows:
1. Disconnect the electricity with the fully isolated
switch.
2. Determine the cause of overheating and rectify the
fault.
3. Remove the front hatch.
4. Press the red button located inside the air curtain
unit, at the inner gable of the connection box.
5. Reattach the front hatch and connect the unit again.
All motors are equipped with an integral thermal safety
cut-out. is will operate, stopping the air curtain
should the motor temperature rise too high. e cut-out
will automatically reset when the motor temperature has
returned to within the motor’s operating limits.
Temperature control
See control pages.
Replacing the water coil (W)
1. Shut o the water supply to the unit.
2. Disconnect the connections to the water coil.
3. Remove the mounting screws securing the coil in
the unit and lift the coil out.
4. Install the new coil in reverse order to the above.

5
AC22
Draining the water coil (W)
e drain valves are on the underside of the coil on the
connector side. It can be accessed via the front hatch.
Trouble shooting
If the fans are not working or do not blow properly, check
the following:
e functions and settings of the built-in control system.
at the intake grille/lter is not dirty.
If there is no heat, check the following:
e functions, internal sensor and settings of the built-in
control system.
For units with electrical heating, check also the following:
Power supply to electric heater coil; check fuses and
circuit-breaker (if any).
at the overheat protection for the motors has not been
deployed.
For units with water coil, check also the following:
at the water coil is air free.
at there is enough water ow.
at incoming water is heated enough.
If the fault cannot be rectied, please contact a qualied
service technician.
Residual current circuit breaker (E)
When the installation is protected by means of a residual
current circuit breaker, which trips when the appliance
is connected, this may be due to moisture in the heating
element. When an appliance containing a heater element
has not been used for a long period or stored in a damp
environment, moisture can enter the element.
is should not be seen as a fault, but is simply rectied
by connecting the appliance to the mains supply via a
socket without a safety cut-out, so that the moisture can
be eliminated from the element. e drying time can
vary from a few hours to a few days. As a preventive
measure, the unit should occasionally be run for a short
time when it is not being used for extended periods of
time.

6
AC22
1234
ON
1234
ON
230V~
Controls
e air curtain has an integrated control system and
can be remotely controlled.
PL2DR
(accessory)
ON
Factory setting dip-switches
Units with water heating.
Dip-switch 3 is used for PL2DR (optional).
Factory setting dip-switches
Units with electrical heating and no heat
Dip-switch 3 is used for PL2DR (optional).
OFF
Actuator SD230
(remove the quick con-
nector)
External on/off
Eg time switch.
External potential free closure= off
Black
Brown
Blue

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AC22
External on/off
Eg time switch.
External potential free closure= off
Heat step
Electric: Half/full power
Water: On/off (1 LED)
On/off
~20 °C
Control panel
Units with electric heating and water heating
Remote control - on/off, fan steps and heating steps
Fan step 1/2/3
Control panel
Units with no heat
On/off
Fan step 1/2/3
Functional test
Functional test is started using the remote control.
Push
and
in 5 seconds
Fan and heating steps are tested in 10-second intervals
which are indicated by lighted LEDs. When the test is
completed, all LEDs will ash for 30 seconds.
Temperature control
If the temperature exceeds 50 °C, the fan runs at full
speed for 2 minutes to vent out the heat, if the tempe-
rature rises above 50 °C again during the following 5
minutes overheating alarm is deployed. e red LEDs
ash and all the buttons are locked.
1. Disconnect the electricity with the fully
isolated switch.
2. Determine the cause of overheating and rectify
the fault.
3. Connect the unit again.

8
AC22
145
345
40
183
78
16540
1026 / 1536 / 2026
20
210
10
145
min 500
min 500 min 500
145
62 40
22
Cu ø1
5
min 500 min 500 145
145
ø17, 5ø17,5
ø32,5
ø25,5
ø20,5
ø1
7, 5
Gland
Knock-out
Knock-out
Knock-out
Gland
Fig.1
Fig.2
Gland
2 m
W/A
E

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AC22
Fig.3: Open the unit.
A
B
TX20
C

10
AC22
30 mm
60 mm
Fig.4.
Fig.5.
Minimum distance
min 60

11
AC22
min 500 mm
Fig. 6: Mounting with wall brackets
Mounting with wall brackets
A
B
D
E
C
203575
210
33
ø8 (3x)
ø5
ø10
162
AC22-10 2 pcs
AC22-15 2 pcs
AC22-20 3 pcs

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AC22
VOS
VOT
PL2DR
Type Connection
VOS15LF DN15
VOS15NF DN15
VOS20 DN20
VOS25 DN25
VOT15 DN15
VOT20 DN20
VOT25 DN25
Mounting accessories
PA34TR
PA2P
PA2PF
PAMLK
PA2PF15 Ceiling mounting bracket for 1 and
1.5 meter unit AC22-10, AC22-15 Pendulum brackets for unit mounting
and ceiling bracket for mounting on the
ceiling using hangers or threaded rods
(not included).
PA2PF20 Ceiling mounting bracket for 2
meter unit AC22-20
PA34TR15
Threaded rods for 1 and 1.5 meter
unit Length: 1 m
Units: 4 pcs
AC22-10, AC22-15
Threaded rods for ceiling mounting.
Used with ceiling mounting brackets
PA 2PF.
PA34TR20
Threaded rods for 2 meter unit
Length: 1 m
Units: 6 pcs
AC22-20
PA2P15
Pendulums for 1 and 1.5 meter unit
Length: 1 m
Units: 2 pcs
AC22-10, AC22-15
Pendulum brackets for mounting the unit
suspended from the ceiling. The
pendulum brackets are covered by a
white plastic duct to hide the cables. The
brackets may be cut to the desired length
should shorter suspension heights than 1
m be desired. Used with ceiling mounting
brackets PA2PF.
PA2P20
Pendulums for 2 meter unit
Length: 1 m
Units: 3 pcs
AC22-20
PL2DR Door switch with remote control AC22
Door switch control with a special remote
control for the Auto mode. With a door
switch and operating in Auto mode, the
fan starts/stops with the door open/
closed. The automatic system enables
selection of maintenance heating when
the door is closed.
PAMLK Motor alarm board AC22
Provides a potential free alarm connection
when thermal contact is triggered in the
motor.
Installed in the air curtain.
Optional features
Control valves for water systems (optional)

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AC22
AC22-10-A/ AC22-15-A/ AC22-20-A
5A x 3
5A
16A
NH1H2
N
1
On
Off
F1 F2 F3
on/off2
N
LPE NL
PE
~
0 -10V
0 - 10V HEAT
ALARM
WATER
INTERNAL SENSOR
IR
M
Blue
Black
Brown
C°
~
Right motor
M
Blue
Black
Brown
C°
~
C3
Run
C2 Lo
C1
Mid
Left motor
Only 2 m version
PL2210CA PL2215CA PL2220CA
C3
Run
C2 Lo
C1
Mid

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AC22
AC22-10-E
5A x 3
5A
16A
NH1H2
N
1
On
Off
F1 F2 F3
on/off 2
N
LPE NL
PE
~
0 -10V
0 - 10V HEAT
ALARM
WATER
INTERNAL SENSOR
IR
M
Blue
Black
Brown
C°
~
Over heat cut-out
°C
C1
L2 PE
L1 LN
L3
400V 3N~
L2 PE
L1 LN
L3
230V~
PL2210CE05
C3
Run
C2 Lo
C1
Mid

15
AC22
AC22-15-E/ AC22-20-E
5A x 3
5A
16A
NH1H2
N
1
On
Off
F1 F2 F3
on/off2
N
LPE NL
PE
~
0 -10V
0 - 10V HEAT
ALARM
WATER
INTERNAL SENSOR
IR
C2
Over heat cut-out
°C
C1
L2 PE
L1 LN
L3
400V 3N~
Over heat
°C
cut-out
PL2215CE08 PL2220CE10
M
Blue
Black
Brown
C°
~
Right motor
M
Blue
Black
Brown
C°
~
C3
Run
C2 Lo
C1
Mid
Left motor
Only 2 m version
C3
Run
C2 Lo
C1
Mid
C4
C3
L2 PE
L1
L3
400V3~

16
AC22
AC22-10-W/ AC22-15-W/ AC22-20-W
5A x 3
5A
16A
NH1H2
N
1
On
Off
F1 F2 F3
on/off2
N
LPE NL
PE
~
0 -10V
0 - 10V HEAT
ALARM
WATER
INTERNAL SENSOR
IR
PL2210CW PL2215CW PL2220CW
M
Blue
Black
Brown
C°
~
Right motor
M
Blue
Black
Brown
C°
~
C3
Run
C2 Lo
C1
Mid
Left motor
Only 2 m version
C3
Run
C2 Lo
C1
Mid
Black
Brown Blue

17
AC22
M
Blue
Black
Brown
C°
~
Lo
Mid
Run
Right motor
NF1F2F3
OUT PA 2MLK
CNC NO
Motor alarm (pot. free contact)
M
Blue
Black
Brown
C°
~
Lo
Mid
Run
Left motor
Only 2 m version
5A x 3
5A
16A
NH1H2
N
1
On
Off
F1 F2 F3
on/off2
N
LPE NL
PE
~
0 -10V
0 - 10V HEAT
ALARM
WATER
INTERNAL SENSOR
IR
On
Off
M
C°
~
PAMLK, Motor alarm card

VEAB Heat Tech AB
Box 265
S-281 23 Hässleholm
SWEDEN
Visitors adress
Stattenavägen 50
Delivery adress
Ängdalavägen 4
Org.no/F-skatt
556138-3166
VAT.no
SE556138316601
Postal Cheque Service
48 51 08- 5
Bank Transfer
926-0365
Fax
Int [phone]
E-mail
[e-mail]
Phone
Int [phone]
Website
www.veab.com
NB: We reserve us from typographical errors and the right to make changes and improvements to the contents of this manual without prior notice.
AC22
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