Airbloc ACR120HE12 User manual

ACR HE COMMERCIAL & RETAIL
RECESSED AIR CURTAIN
ELECTRICALLY HEATED
1200mm & 1800mm
HIGH CAPACITY
Installation and
operating manual

Figure 1 Wiring Diagram
Health and Safety
Sole liability rests with the installer to ensure that all site safety
procedures are adhered to during installation.
Sole liability rests with the installer to ensure that protective safety
wear such as hand, eye, ear and head protection is used during
installation of the product.
Do not rest anything especially ladders against the product.
Standards
Units conform to the european electrical standard BS EN 60335-2-
30:1997 and to the following european CE directives. 73/23/EEC low
voltage; 89/336/EEC and 98/68/EEC electromagnetic compatibility.
1 Technical specification & safety details
General
All installations must be in accordance with the regulations in force
in the country of use.
These instructions must be given to the user on completion of the
installation.
Installers and service engineers must be able to demonstrate
competence and be suitably qualified in accordance with the
regulations in force in the country of use.
To ensure continued and safe operation it is recommended that the
appliance is serviced annually.
The fan wheel, air inlet and outlet grilles, need to be cleaned
monthly with a soft brush.
The manufacturer, offers a maintenance service. Details available on
request.
The air curtain inlet/outlet grille and case air inlet slots must not be
obstructed during use.
Electrical
The appliance must be earthed.
It is recommended that the electrical supply to the air curtain is via
an appropriate switched isolator in accordance with the regulations
in force in the country of use and must be via a fused double pole
isolator having a contact separation of greater than 3mm in all poles.
Supply is 415V 3 phase and neutral max cable inlet size is 6mm2.
Time switches and thermostats can be installed at the discretion and
responsibility of the installer.
Fixing details
Airbloc units should be installed horizontaly directly over the door
opening. It is recommended that the air curtain is installed on the
inside of the building, within the open room space against a wall or
ceiling. Care must be taken to allow complete free air movement into
the inlet grilles of the unit to ensure correct working operation of the
air curtain. The discharge opening should be as close to the top of
the door as possible and to cover the entire door width.
Clearance distances
It is recommended that a minimum clearance of 100mm is allowed
around the top, front, back and sides of the unit. The clearance allows
for cable entry and prevents combustible surfaces overheating. The
minimum mounting height (floor to grille outlet) is 1.8m. The
recommended maximum mounting height is 4m.
These units are designed for mounting into a ceiling recess.
Models suitable for surface mounting are available.
Model ACR120HE12 ACR180HE18
Weight 38kg 55kg
Case size 550 x 221 x 1150mm 550 x 221 x 1750mm
Element rating 12kW 18kW
Motor rating 240V 50Hz 0.4A 240V 50Hz 0.4A
Cut out size 560 x 1160 560 x 1760
Flange width 25mm 25mm
Note Dimension 221 refers to the height from the ceiling face to the
outside of the case.

2 Air Curtain installation details
It is the sole responsibility of the installer to ensure that the points of
attachment to the building are sound. Consultation with the consult-
ant/architect or owner of the building is recommended to ensure that
a sound, mechanically stable installation is achieved.
All attachments must be capable of supporting the weight of the
product detailed in Section 1.
Step 1
Before fitting or wiring the air curtain, ensure casing faces as above
and see general installation guidance notes.
Step 2
Step 3
Open the grille. The grille is hinged to prevent the inner frame from
dropping.
Step 4
Attachment of the air curtain to the ceiling structure is by means of
the two brackets attached to the side of the air curtain. The
brackets may be removed to assist in passing the air curtain through
the recess then re-attached when in-situ.
Step 5
Either 10mm or 12mm drop rods or catenary wire (available from
manufacturer) can be used to fasten the air curtain to the ceiling
support structure.
Note When using drop rods the casing mounting brackets are slotted
and the mounting plates provided must be used on assembly.
Step 6
The height between the ceiling face and the face of the air
curtain case needs to be adjusted to approximatley 40mm to enable
the grille assembly to fit flush with the ceiling. Adjust accordingly.
ENSURE AIR OUTLET LOUVRES ARE NEAREST TO DOOR APPERTURE.
Access to the inside of
the air curtain grille can
be made by removing the
screws as indicated
below.
Outlet

After suspending the air curtain proceed to wire the product in
accordance with the wiring diagram in Section 1 of these
instructions.
Ensure that all fittings to the flow and return pipes are made
effectively and are water tight.
On completion of the above ensure that the hinge grille is secured
with the fixing screws provided.
3 Electrical connections
Connect the electrical supply to the bottom of the terminal rail.
(See Figure 1. Wiring diagram).
To open terminal depress as shown.
or
Insert correct size flat blade screwdriver from underneath.
Test product and refit the case.
4 General user instructions
Figure 2
To operate the air curtain
First ensure that the electrical supply to the air curtain heater is
turned on. The panel live neon on the switch box should be
illuminated.
Ensure that the settings of any time-switch or thermostats
incorporated in the installation are in a mode to ensure that the air
curtain can operate.
By switching each rocker switch to the down position the
following combinations of control can be achieved:
•ON 1 & HEAT SET 1 provides low air flow and low heat.
•ON 1 & HEAT SET 2 provides low air flow and high heat.
• ON 2 & HEAT SET 1 provides high air flow and low heat.
• ON 2 & HEAT SET 2 provides high air flow and high heat.
•ON 1 provides low ambient air flow.
•ON 2 provides high ambient air flow.
To switch off the air curtain
For short periods ensure that all the rocker switches are in the up
position.
For longer periods turn off the mains supply isolator.
Nordair
Unit 22 Battersea Road
Heaton Mersey Industrial Estate
Stockport Cheshire
SK4 3EA United Kingdom
Telephone [phone]
Facsimile 0161 219 0001
UK sales e-mail: [e-mail]
Website: www.nordair.co.uk
Ambi-Rad Limited
Fens Pool Avenue
Brierley Hill
West Midlands
DY5 1QA United Kingdom
Telephone [phone]
Facsimile 01384 489707
UK sales e-mail: [email protected]
Website: www.ambirad.co.uk
For industrial air curtain
enquires please contact
For commercial/retail air curtain
enquires please contact
Due to continuous product innovation,
we reserve the right to change product
specification without due notice.
Airbloc is a registered trademark of
Ambi-Rad Limited.
Document reference number : GB/NOR/058/0205