Reznor AirBloc AC Series User manual

AC COMMERCIAL & RETAIL
ELECTRICALLY HEATED,
AMBIENT & LPHW
1000 & 1500 & 2000mm
High & Standard Capacity
Installation and
operating manual

Technical specification & safety details
Installation details
Servicing
Element and motor replacement
General user instructions
Fault finding
Spare parts
5
4
3
2
1
6
7
Index

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 are
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.
Electrically heated supply is 415V 3 phase and neutral max cable
inlet size is 6mm2.
Ambient & LPHW supply is 230V 1phase 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 200mm is allowed
around the top and front 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 3m for the standard capacity and 4m
for the high capacity. These units are designed for surface
mounting only. Models suitable for recessing into ceilings are
available
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
1

Figure 1 Wiring Diagram - Electric
2
Drawing Number - 900092R1

Figure 2 Wiring Diagram - Ambient / LPHW
3
Drawing Number - 900220

Model AC1000SE09 AC1500SE12 AC2000SE18 AC1000HE12 AC1500HE18 AC2000HE24
Weight 39.5kg 49kg 60kg 39.5kg 49kg 60kg
Element rating 9kW 12kW 18kW 12kW 18kW 24kW
Motor rating 230V 50Hz 2.1 amps max
Amps per phase 14.2 18.2 26.7 18.5 29.5 38.4
Figure 3
ABCD
1000mm 1062 992 1095 1138
1500mm 1562 1492 1553 1638
2000mm 2062 1992 2053 2138
Dimensions
Technical specification - Electric (415V 50Hz supply required)
4
Technical specification - LPHW & Ambient (230V 50Hz supply required)
Model AC1000SW09 AC1500SW12 AC2000SW18 AC1000HW12 AC1500HW18 AC2000HW24
AC1000SAW AC1500SAW AC2000SAW AC1000HAW AC1500HAW AC2000HAW
Weight 39.5kg 49kg 60kg 39.5kg 49kg 60kg
LPHW Element
rating 9kW 12kW 18kW 12kW 18kW 24kW
Motor rating 230V 50Hz 2.1 amps max

Step 6
Drill the wall then fix the backbox in position. Lift the chassis
(using lifting gear if necessary) onto the studs on the back box
brackets. Refit and tighten the nuts.
Step 7
It is the sole responsibility of the installer to ensure that the
points of attachment to the building are sound. Consultation
with the consultant/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.
It is recommended that the chassis is removed from the back box to
avoid having to support the weight of the product during
installation. To separate the chassis from the back box undo and
remove the nuts shown and lift the chassis away from the back box.
The product can be installed using either M12 drop rods or
fastened direct to the wall using appropriate sized fixings suitable
for the wall surface and the weight of the product.
Step 1
2 Installation details
Remove all packaging. Remove decorative cover. Undo screws
securing the outlet.
Note All outer metal surfaces are covered by a protective plastic
film, which must be removed before final fixing and operating of
the unit.
Adjust the grille by turning the screw inside with an allen key.
Step 2
Step 3
Step 5
Step 4
To wall mount the product, position the back box against the wall
at the desired mounting height and mark through the holes in
the back box brackets to enable the wall to be drilled for the
appropriate fixings.
5

Step 9
Adjust the product to the required height and ensure that it is
fitted level using a spirit level across the back box as required.
Tighten the lock nuts and re-assemble in reverse order. Adjust
outlet to required angle to give desired performance, and tighten
outlet screws.
Holes are provided in the back box for the feed cable to enter the
case. Choose the appropriate hole top rear to suit the installation.
Fit suitable cable gland for size of cable.
or
Insert correct size flat blade screwdriver from underneath.
Step 8
To install the product using M12 drop rods follow instructions from
step 4. If the decorative tube is to be used, fit this over the drop
rod, then pass the drop rod through the back box brackets.
6
2.1 Installation details - LPHW Only
Access to the heating coil and mains terminal block is via
removal of the case as detailed below
Main Terminal Block
Flow connection with case Return connection with case
removed. Diameter 15mm O/D removed. Diameter 15mm O/D
copper tubing copper tubing
Electrical Connections
With case removed, connect the electrical supply and switchbox
interconnecting wiring to the bottom of the terminal rail (See
wiring diagrams figures 1-4)
To open terminal depress as shown

The product should be serviced annually. Airbloc offer a service
facility, call 01384 489700.
Servicing shall be undertaken by a competent person.
Ensure electrical power is isolated from the product.
3 Servicing
Slacken two bolts on both ends.
Step 4
Remove three bolts securing the access plate.
Carefully hinge down the access plate.
Note Take the weight as access plate swings down.
Step 5
With a soft brush clean away any dust from the motor and
elements. Check all connections and components for soundness or
signs of deterioration and replace as necessary. Re-assemble and
test.
Step 1
Undo screws securing the grille.
Adjust the grille by turning the screw inside with an allen key.
Remove 4 screws securing the top of the case and remove.
Step 2
Step 3
7

Follow steps 1 - 4 below.
Repeat steps 1 - 2 for opposite rotor.
Disconnect the wires from the motor to the mains terminal rail.
Remove 3 screws securing fan bearing plate to access panel.
Carefully remove plate with bearing housing from rotor bearing.
Step 1
4 Motor Replacement
Slacken the grub screw securing rotors to the motor shaft, remove
rotor.
Step 2
Remove the bolts securing the motor to the chassis.
Replace motor as required.
Refit in reverse of previous steps and test the performance of the
product.
Step 3
Remove the rotors and motor from the assembly and replace as
required.
Refit in reverse of the previous steps and test the performance of
the product.
Step 4
8