Ambirad Vision VSO Series Installation guide

Doc No. 700021 Page 1 of 20
Part No. 700021
Nortek Global HVAC (UK) Limited, Fens Pool Avenue, Brierley Hill, West Midlands, DY5 1QA
WARNINGS
Nortek Global HVAC (UK) Ltd equipment must be installed and maintained in accordance with
the relevant provisions of the Gas Safety (Installations and Use) Regulations 1998 for gas fired
products. Due account should also be taken of any obligations arising from the Health and
Safety at Works Act 1974 or relevant codes of practice. In addition the installation must be
carried out in accordance with the current IEE wiring regulations (BS 7671), BS 6896 (Industrial
& Commercial) and any other relevant British Standards and Codes of Practice by a qualified
installer. All external wiring MUST comply with the current IEE wiring regulations.
AAMBIMBIRRADAD VVISIONISION®VSO/VSXOVSO/VSXO
RRADIANTADIANT TTUBEUBE HHEATERSEATERS
AASSEMBLYSSEMBLY IINSTRUCTIONNSTRUCTION MMANUALANUAL
INDEX Section
Introduction and Document Index
Installation Requirements---------------------------------------------------1
Assembly Instructions -------------------------------------------------------2
User and Operating Instructions ------------------------------------------3

Doc No. 700021 Page 2 of 20
Introduction.
Document Index.
1 Installation Requirements
1.1 Health & Safety
1.2 Model definitions
2 Assembly Instructions
2.1 Tools Required
2.2 Assembly Notes
2.2.1 Tubes
2.2.2 Turbulators
2.2.3 Brackets
2.2.4 Couplers
2.2.5 U Bend
2.2.6 Reflectors
2.2.7 End Caps
2.2.8 Burner Assembly
2.2.9 Heat Exchanger Assembly
2.2.10 HB Damper Assembly
2.2.11 End Moulding Fixing
2.2.12 HB Damper Assembly
2.2.13 Detailed Assembly Drawings
3 User and Operating Instructions
3.1 To Start Heater
3.2 To Switch off Heater
3.3 Routine Maintenance Between Service Intervals
3.4 Frequency of Servicing
1. Installation Requirements.
Isolate any electrical supply to the
heater and controller before proceeding. handling sharp or heavy items. The use of
protective eye wear is also recommended.
1.2 Model Definitions
VSOUT = AmbiRad Vision U Tube Unitary
heater with painted induced burner, ID Fan,
aluminised steel reflectors, end caps,
insulation, tube over shields, painted canopies
and optional end covers.
VSOUH = AmbiRad Vision U Tube
Herringbone heater with painted induced burner,
Damper, aluminised steel reflectors, end caps,
insulation, tube over shields, painted canopies
and optional end covers.
VSXO = AmbiRad Vision High efficiency U
Tube heater with forced burner, recuperative
heat exchanger, aluminised steel reflectors, end
caps, insulation, tube over shields, painted
canopies and optional end covers.
1.1 Health and Safety
AmbiRad heaters must be installed in
accordance with the relevant provisions of the
Gas Safety (Installations and Use) Regulations
1998. Due account should also be taken of any
obligations arising from the Health and Safety
at Works Act 1974 or relevant codes of
practice. In addition the installation must be
carried out in accordance with the current IEE
wiring regulations (BS 7671), BS 6896
(Industrial & Commercial) and any other
relevant British Standards and Codes of
Practice by a qualified installer. Isolate all
electrical supplies to the heater & controller
before proceeding.
For your own safety we recommend the use of
safety boots and leather faced gloves when
and attention is required to ensure that working
at height regulations are adhered to at the
mounting heights specified.
PLEASE READ this document prior to
installation to familiarise yourself with the
components and tools you require at the various
stages of assembly.
All Dimensions shown are in mm unless
otherwise stated.
The manufacturer reserves the right to alter
specifications without prior notice.
Welcome to the new range of high efficiency
AmbiRad Vision radiant tube heaters. Local
regulations may vary in the country of use and
it is the installers responsibility to ensure that
such regulations are satisfied.
All installation, assembly, commissioning and
service procedures must be carried out by
suitably qualified and competent persons to the
statutory regulations in the country of use.
When assembling, installing, commissioning
and servicing is undertaken on radiant tube
heaters specified in these instructions, due care

Doc No. 700021 Page 3 of 20
2. Assembly Instructions.
PLEASE READ this section prior to
assembly to familiarise yourself with the
components and tools you require at the
various stages of assembly. Carefully open the
packaging and check the contents against the
parts and check list.
The manufacturer reserves the right to alter
specifications without prior notice.
Please ensure that all packaging is
disposed of in a safe environmentally
friendly way.
For your own safety we recommend the
use of safety boots and leather faced
gloves when handling sharp or heavy items. The
use of protective eye wear is also
recommended.
Pozidrive
Screwdriver
Saw
Trestles
Leather
Faced
Gloves
Silicone
Sealant
& Gun
4 & 5mm
Allen
Keys
Pop
Riveter
& 3/16”
Rivets
Tape
Measure
13mm
Socket
Wrench With
Extension
10mm,
12mm &
13mm
Spanners
Herringbone
Systems Only
2.1 Tools Required.
The following tools and equipment are
advisable to complete the tasks laid out in this
manual.
Suitable alternative tools may be used.
2.2 Assembly Notes (refer fig’s 1-7)
2.2.1 Tubes
Identify and position tubes (A) on trestles.
Position the tubes so that the tube seams are
facing inwards.
Mark out the position of the bracket centres
from the dimensions shown on the assembly
drawings.
Return tube
Firing Tube
U bend
end
Burner end
2.2.2 Brackets
Slide the bracket assemblies (B) along to the
tubes to the dimensional positions and in their
correct order as detailed in the assembly
drawings. We recommend brackets are fixed to
tubes prior to hanging.
When fixing the bracket to the tubes it
should be noted that the ‘U’ bolts on the
first bracket CLOSEST TO THE BURNER*
and last bracket CLOSEST TO ’U’ BEND
should be tightened to achieve a minimum
torque setting of 15Nm².
* not on the firing tube on 2 module versions
Note:
Four module heaters (45kW & 50kW)
are assembled in two sections.
Note:
First section of burner tube on
PROPANE four module heaters
(45kW & 50kW) is stainless steel.

Doc No. 700021 Page 4 of 20
2.2.4 Couplers
For fixing the U bend. Locate and position tube
couplers (D) Slide the coupler over the
components ensuring that the rivet stop has
butted up to the tube end and the pre-fitted bolts
engage in the pre-cut holes so that the socket
heads are FACING INWARDS.
Moving between the two set pins, tighten both
ensuring that equal pressure is applied to each
set pin in turn.
2.2.5 Coupler Bellows
For adjoining tubes on 3 and 4 module heaters,
locate and position the coupler (Q) onto the
ends of the tubes after firstly positioning a clamp
on both ends. Slide each clamp onto the bellow
ends.
Moving between the two set pins, tighten both
ensuring that equal pressure is applied to each
set pin in turn.
There is one bellow located on the firing
tube on models 30, 35 & 40:
There are two bellows located on each
tube on models 45 and 50:
Due to the length of models 45 and 50,
the coupler bellows are assembled onto
the tube ends ONCE the two halves of the
heater have been fully assembled and
hung in position see “Final Fixings”
section 2.2.7.2.3
All remaining ‘U’ bolts on the RETURN
TUBE should also be tightened to
achieve a minimum torque setting of 15Nm².
All remaining ‘U’ bolts on the FIRING
TUBE and the first ‘U’ bolt on the
FIRING TUBE on 2 module variants, should be
left loose and locked in place with a locknut to
achieve a 3mm clearance above the tube to
allow for thermal expansion (see sketch below).
2.2.3 Turbulators
There are various lengths of turbulators
(G) for the vision range. Identify correct lengths
prior to assembly. We recommend turbulators
are inserted into tubes prior to hanging.
Insert short 976mm turbulator into burner firing
tube from U BEND END.
For models 15, 20 and 25: Insert 3400mm
turbulator into return tube from U BEND END.
For models 30, 35 and 40: Insert one 2600mm
turbulator into return tube from U BEND END
and one 2600mm turbulator into return tube
from OPPOSITE END.
For models 45 and 50: Insert one 3040mm
turbulator into return tube from U BEND END
and one 3400mm* turbulator into return tube
from OPPOSITE END. * Nat Gas only
Floating detailFixed detail
3mm Clearance
Locknut
View from U tube end

Doc No. 700021 Page 5 of 20
1200 CRS. 1785 CRS. 232
1785 CRS.1235 CRS. 1795 CRS.
1235 CRS. 1235 CRS. 1120 CRS. 1235 CRS. 1785 CRS.
232
232
BURNER
END
BURNER
END
BURNER
END
B
A
BB
BBBB
BBBBB B
B
B
B
A
AA
AA
A
A
TWO
MODULE
THREE
MODULE
FOUR
MODULE
3400mm TUBE 3400mm TUBE
3400mm TURBULATOR 976mm TURBULATOR
2600mm TURBULATOR 976mm TURBULATOR
3040mm TURBULATOR 976mm TURBULATOR
2600mm TURBULATOR
3400mm TURBULATOR
(NOT PROPANE)
2535mm TUBE 5220mm TUBE
3735mm TUBE 3735mm TUBE
2535mm TUBE
3065mm TUBE 3065mm TUBE
3mm
DETAIL B
B
B
DETAIL A
DETAIL C
C
C C
END VIEW
Fig. 1 Tube, Brackets and Turbulator detail

Doc No. 700021 Page 6 of 20
2.2.6 U Bend.
Slide U bend (C) into the open end of the
couplers ensuring the pre-fitted bolts engage in
the precut holes. Tighten all four clamping bolts
to provide a tight grip between tubes & U bend.
To avoid damaging the heater whilst
installing we recommend the heater
chassis be suspended prior to fitting reflectors.
2.2.7 Reflectors
There are three reflector section types used in
the construction on the Vision Optima heater.
1. Overshield reflector (J): located on the
underside of the inner reflector positioned
above and in parallel to the radiant tubes.
The two ends of the overshields are
different to allow for thermal expansion
and should be fixed in the correct order as
detailed in the assembly drawings.
2. Inner Reflector (H): aluminised steel
reflectors located over the radiant tubes to
emit the heat downwards.
3. Outer Canopy (L): pre-coated decorative
reflector positioned to the outside of the
reflector. The outer canopies come in two
halves for ease of assembly and are held
together by closing plates (N).
2.2.7.1 Overshield Reflectors
Overshields (J1) are fitted to the underside of,
and run in parallel to, the inner reflectors.
One end of the overshield has two holes for
direct fixing to the reflector, the other end has
two larger slots which along with an expansion
fixing plate allows for thermal expansion.
1. Locate and position correct overshield and
offer to the underside of the reflector so that the
location holes are in line.
2. Using bolts, nuts and washers provided,
fasten through the overshield, reflector and
cross member (J2) which runs across the top.
3. The larger holes located at the other end of
the overshield should line up with the holes in
the reflector. This end is allowed to ‘float’ with
thermal expansion and as such, an expansion
plate (J3) is added and placed to the underside
of the overshield.
4. Using bolts, nuts and washers provided,
fasten through the expansion plate, overshield,
reflector and cross member which runs across
the top.
5. Continue for other reflectors.
Remove the protective plastic coating.
Overshields MUST be fitted prior to
the assembly of the reflectors.
The overshields are supplied in two
lengths and MUST be arranged, in the
correct directions and on the specific
reflector order as indicated in the
detailed drawings.

Doc No. 700021 Page 7 of 20
B
A
REFLECTOR #2
B
A
B B
A A
REFLECTOR #1
REFLECTOR #1
REFLECTOR #3 REFLECTOR #2
REFLECTOR #1
REFLECTOR #4 REFLECTOR #2
REFLECTOR #3
201931 201928
1200 OVERSHIELD 1680 OVERSHIELD
201928
1680 OVERSHIELD
201928
1680 OVERSHIELD
201928
1680 OVERSHIELD
201928
1680 OVERSHIELD
201928
1680 OVERSHIELD
201931
1200 OVERSHIELD
201931
1200 OVERSHIELD
BURNER
END
BURNER
END
BURNER
END
AV NUT
WASHER
CROSS
MEMBER
OVERSHIELD
REFLECTOR
WASHER SET PIN
EXPANSION PLATE
AV NUT
WASHER
CROSS
MEMBER
OVERSHIELD
REFLECTOR
WASHER SET PIN
OVERSHIELD DETAIL
FLOATING - POSITION A
OVERSHIELD DETAIL
FIXED - POSITION B
TWO
MODULE
THREE
MODULE
FOUR
MODULE
B B
A A
B B
A A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
A A
B B
Fig. 2 Overshield detail

Doc No. 700021 Page 8 of 20
2.2.7.2 Inner Reflectors
2.2.7.2.1 Two Module units
1. Place inner reflectors (H) on the heater by
sliding the reflectors between the tubes and the
brackets.
2. Locate the FIRST slot on reflector over the
M8 bolt on the first bracket. Secure using large
washers and anti vibration nuts.
3. The slot in other end of the first reflector
should align with M8 bolt on the second bracket.
4. Locate the second reflector onto the same
bolt using the SECOND slot in from the end and
OVERLAP the first reflector. This should create
a 114mm overlap. Secure using large washers
and anti vibration nuts.
4. Locate the M8 bolts on last bracket to slot in
second reflector approx one third distance from
reflector end. Secure using large washers and
anti vibration nuts.
5. Slight re-adjustment of brackets may be
necessary for reflector alignment. Ensure U
bolts are tightened correctly as described in
section 2.2.3.
2.2.7.2.2 Three Module Units
1. Place inner reflectors (H) on the heater by
sliding the reflectors between the tubes and the
brackets.
2. Locate the FIRST slot on reflector over the
All reflectors must be positioned/
attached to the brackets exactly as
detailed in the assembly drawings.
Remove the protective plastic coating.
M8 bolt on the first bracket. Secure using large
washers and anti vibration nuts.
3. The slot in other end of the first reflector
should align with M8 bolt on the second bracket.
4. Locate the second reflector onto the same
bolt using the FIRST slot in from the end and
OVERLAP the first reflector. This should create
a 77mm overlap. Secure using large washers
and anti vibration nuts.
5. The slot in other end of the second reflector
should align with M8 bolt on the third bracket.
6. Locate the third reflector onto the same bolt
using the FIRST slot in from the end and
OVERLAP the second reflector. This should
create a 67mm overlap. Secure using large
washers and anti vibration nuts.
7. Locate the M8 bolts on last bracket to slot in
third reflector approx one third distance from
reflector end. Secure using large washers and
anti vibration nuts.
8. Slight re-adjustment of brackets may be
necessary for reflector alignment. Ensure ‘U’
bolts are tightened correctly as described in
section 2.2.3.
2.2.7.2.3 Four Module Units.
Models 45 and 50 are assembled in two halves.
Working on the half closest to the Burner:
1. Place the first two inner reflectors (H) on the
heater by sliding the reflectors between the
tubes and the brackets.
2. Locate the FIRST slot on reflector over the
M8 bolt on the first bracket on this half. Secure
using large washers and anti vibration nuts.
3. The slot in other end of the first reflector
should align with M8 bolts on the second
bracket on this half.
4. Locate the second reflector onto the same
bolt using the FIRST slot in from the end and
OVERLAP the first reflector. This should create
a 77mm overlap. Secure using large washers
and anti vibration nuts.
Ensure the 3rd reflector sits on top
of the 2nd reflector and the 2nd
reflector on top of the 1st
Ensure the 2nd reflector sits on top
of the 1st.

Doc No. 700021 Page 9 of 20
2.2.8 Insulation mats.
Using the recommended safety equipment i.e.
gloves, goggles and a face mask, cover the
back of reflectors with the insulation mats. Tuck
in the edge of the mat behind the lip of the
reflector.
The insulation mats come in two sections for the
four module variants.
5. Locate the M8 bolts on third bracket on this
half to slot in same reflector approx one third
distance from reflector end. Secure using large
washers and anti vibration nuts.
Now working on the second half:
6. Place the remaining inner reflectors (H) on
the heater by sliding the reflectors between the
tubes and the brackets.
7. Locate the fourth reflector onto the M8 bolts
of the first bracket on this half using the slot
approx one third distance in from the end of the
reflector. Secure using large washers and anti
vibration nuts.
8. The last slot in other end of this reflector
should align with M8 bolts on the second
bracket on this half.
9. Locate the fourth reflector onto the same bolts
using the FIRST slot in from the end and
OVERLAP the third reflector. This should create
a 84mm overlap. Secure using large washers
and anti vibration nuts
10. Locate the M8 bolts on last bracket to slot in
fourth reflector approx one third distance from
reflector end. Secure using large washers and
anti vibration nuts.
11. Slight re-adjustment of brackets may be
necessary for reflector alignment. Ensure ‘U’
bolts are tightened correctly as described in
section 2.2.3.
Final fixings for four module units.
12. At this stage, with the bellow couplers
already affixed to one half, align and offer other
side of bellow couplers to adjoining tubes,
carefully overlapping the second reflector to the
third to create a 50mm overlap. Secure using
bolts, large washers and anti vibration nuts.
13. Tighten bellow couplers as stated in section
2.2.5
14. With the assembly correctly fitted, a gap of
1120mm between brackets 3 and 4 should be
apparent.
Note: Third reflector ONLY is turned
through 180° to all other reflectors.
Ensure the 2nd reflector sits on top
of the 1st.
Ensure the 4th reflector sits on top of
the 3rd.

Doc No. 700021 Page 10 of 20
TWO
MODULE
THREE
MODULE
FOUR
MODULE
114mm OVERLAP
67mm OVERLAP 77mm OVERLAP 84mm OVERLAP 77mm OVERLAP
50mm OVERLAP
WASHER
REFLECTOR
WASHER
REFLECTOR FIXING
DETAIL- D
AV NUT
Fig. 3 Reflector detail

Doc No. 700021 Page 11 of 20
other and insert M8 self tapping screws
provided.
6. Repeat the procedure for 3rd set of outer
canopies.
2.2.9.3 Four Module Units
1. Slide on the two halves to cover the centre
section of the heaters and fit closing plates to
each end (P).
2. Slide on two more outer canopies.
3. Stop short of the canopies already fitted and
fit closing plates (P).
4. Insert the ends of the second set of canopies
inside the first set at the central joint.
5. A slot is located 15mm from the end of each
canopy. Align each slot i.e. one on top of each
other and insert M8 self tapping screws
provided.
6. Repeat the procedure for 3rd and 4th set of
outer canopies.
2.2.9 Outer Canopy's
The outer canopies are made up of identical half
covers (L) which engage into the side of the
inner reflectors and join at the centre by way of
a closing plate which holds the two halves
together. Install the outer canopies using the
following method;
2.2.8.1 Two Module Units
1. Slide on the two halves to cover the 1st
section of the heaters and fit closing plates to
each end to the second set of canopies.
2. Slide on two more outer canopies.
3. Stop short of the canopies already fitted and
fit closing plates (N).
4. Insert the ends of the second set of canopies
inside the first set at the central joint.
5. A slot is located 15mm from the end of each
canopy. Align each slot i.e. one on top of each
other and insert M8 self tapping screws
provided.
2.2.8.2 Three Module Units
1. Slide on the two halves to cover the centre
section of the heaters and fit closing plates to
each end (P).
2. Slide on two more outer canopies.
3. Stop short of the canopies already fitted and
fit closing plates (P).
4. Insert the ends of the second set of canopies
inside the first set at the central joint.
5. A slot is located 15mm from the end of each
canopy. Align each slot i.e. one on top of each
Remove the protective plastic coating.

Doc No. 700021 Page 12 of 20
*CANOPY FIXING
FOUR MODULE ONLY
POSITION E
FOUR
MODULE
THREE
MODULE
SCRAP PLAN VIEW
FROM ABOVE HEATER
30mm OVERLAP 30mm OVERLAP 30mm OVERLAP
90mm OVERLAP 30mm OVERLAP 30mm OVERLAP
55mm 35mm
E
SCRAP PLAN VIEW
FROM ABOVE HEATER
SCRAP PLAN VIEW
FROM ABOVE HEATER
FOURTH
CANOPY THIRD
CANOPY
CANOPY FIXING
DETAIL (EXCEPT *)
15mm 15mm
SCRAP VIEWS FROM ABOVE
TWO
MODULE
Fig. 4 Canopy detail

Doc No. 700021 Page 13 of 20
2.2.10 End Caps
Position the end cap with no tube holes (M)
beneath the reflector profile at the U bend end
making sure that the end cap engages inside
the inner reflector . Fasten to canopy using M5
pozi set pin and washers.
Position the end cap with tube holes beneath
the reflector profile at the burner end making
sure that the end cap engages inside the inner
reflector . Fasten to canopy using M5 pozi set
pin and washers.
2.2.11 Burner Assembly.
Slide the burner assembly (F) onto the RIGHT
HAND TUBE when viewed from behind,
ensuring it is fully engaged. Secure with grub
screws.
2.2.12 Heat Exchanger Assembly
On VSXO only, slide the heat exchanger
assembly (E1) onto the LEFT HAND TUBE
when viewed from behind ensuring it is fully
engaged. Secure with pinch screws.
2.2.13 Fan Assembly
On unitary heaters only, slide the fan
assembly (E2) onto the LEFT HAND TUBE
with the test point closest to the tube when
viewed from behind ensuring it is fully engaged.
Secure with pinch screws.
2.2.14 Herringbone Damper Assembly
On Herringbone heaters only, slide the
damper assembly (E3) onto the LEFT HAND
TUBE with the test point closest to the tube
when viewed from behind ensuring it is fully
engaged. Secure with pinch screws.
Note: The damper assembly must be located
with its damper blade vertical and left in the
closed position. The manifold tube is to be
sealed and secured (as described below) to the
damper assembly.
Remove the protective plastic coating.

Doc No. 700021 Page 14 of 20
2.2.15 Fixing of optional End Mouldings.
If end mouldings (P) have been ordered
(optional item) fit the end mouldings with the
screws provided / quick release clips to the
holes in top of the canopy.
2.2.16 HB Manifold Assembly.
VSO Models ONLY. After fixing the heaters in
the desired position, the manifold system
requires fitting.
After allowing for a minimum of 75mm (3in) of
penetration of the fitting into the tube, cut the
tubes to the lengths required and remove all
burrs and wipe off any grease or oil with a clean
rag.
Method of jointing aluminium tube
Using the applicator gun exude 4mm diameter
bead of high temperature silicon jointing
compound externally round the end of the fitting
and internally round the end of the tube.
Enter the fitting into the tube using a slight
rotating movement to spread the jointing
compound uniformly until a penetration of 75mm
(3in) is achieved.
Note The silicon jointing compound remains
workable after application for only 5 minutes.
Secure the joint by drilling through the tube and
fitting and fix with three pop rivets at 12 o’clock,
4 o’clock and 8 o’clock positions. 4.8mm
(3/16in) diameter pop rivets are recommended.
2.2.17 Detailed Assembly Drawings
The following pages show the exploded
diagrams of the VSO and VSXO range of
heaters.
Please note the heater type, length and
reference number from the delivery/advice note
before identifying the correct model drawing
Fitting
Manifold
External bead of
jointing compound
Internal bead of
jointing compound
Manifold Tube
Vacuum Test Point
Damper Blade
Emitter Tube
FLOW
FLOW

Doc No. 700021 Page 15 of 20
Fig. 5 Two Module drawings
A
B
C
G
P
J1
J2
D
H
J3
K
L
M
N
F1 E1 E2 E3
F2
HReflectors
J1 Overshields J2 Expansion Plate J3 Cross Member
KInsulation
LOuter Canopy
M Canopy End Cap
N Closing Plates
P End Mouldings (optional)
Ref Description
ARadiant Tubes BSuspension Brackets CReturn Bend DCouplers
E1 Heat Exchanger (VXSO) E2 Fan (unitary heaters) E3 Damper (Herringbone)
F1 Forced Burner (VSXO) F2 Induced Burner (VSO)
GTurbulators

Doc No. 700021 Page 16 of 20
Ref Description
ARadiant Tubes BSuspension Brackets CReturn Bend DCouplers
E1 Heat Exchanger (VXSO) E2 Fan (unitary heaters) E3 Damper (Herringbone)
F1 Forced Burner (VSXO) F2 Induced Burner (VSO)
GTurbulators
Fig. 6 Three Module drawings
A
B
C
G
P
J1
J2
D
H
J3
K
L
M
N
F1
F2
E1 E2 E3
HReflectors
J1 Overshields J2 Expansion Plate J3 Cross Member
KInsulation
LOuter Canopy
M Canopy End Cap
N Closing Plates
P End Mouldings (optional)
Q Bellow coupler
Q

Doc No. 700021 Page 17 of 20
Ref Description
ARadiant Tubes BSuspension Brackets CReturn Bend DCouplers
E1 Heat Exchanger (VXSO) E2 Fan (unitary heaters) E3 Damper (Herringbone)
F1 Forced Burner (VSXO) F2 Induced Burner (VSO)
GTurbulators
HReflectors
J1 Overshields J2 Expansion Plate J3 Cross Member
KInsulation
LOuter Canopy
M Canopy End Cap
N Closing Plates
P End Mouldings (optional)
Q Bellow coupler
Fig. 7 Four Module drawings
A
B
C
G
P
J1
J2
D
H
J3
K
L
M
N
F1
F2
E1 E2
Q
E3

Doc No. 700021 Page 18 of 20
Notes.

Doc No. 700021 Page 19 of 20
Notes.

Doc No. 700021 Page 20 of 20
3.1 To Start the Heater
1. Ensure gas supply is turned on.
2. Electrical supply to the controls is on.
3. Ensure that the controls are correctly set
i.e.;
• Clock is correctly set.
• Heater program is correctly set.
• Required room temp is correctly set
4. Once the heating controller ‘calls for heat’
power will be supplied to the heater(s). The
red neon will then illuminate.
5. After a pre-purge period of 10 seconds the
burner will ignite and the amber neon will
then illuminate.
6. If lockout occurs press the lockout reset
button (if available), or switch off electrical
supply and restart after 15 seconds.
7. If lockout occurs three times consecutively
switch off and isolate the gas and
electricity supplies.
Call an AmbiRad Service Engineer.
3.2. To Switch Off Heater
1. Switch off electrical supply to the heater.
The burner will stop and the fan will shut
off.
2. If the heater is to be switched off for
periods in excess of one week it is highly
recommended that both the gas and the
electrical supplies are turned off.
3.3. Routine Maintenance between Service
Intervals
After ensuring that the heater is cold and
mains electric isolated, cleaning of the
reflectors with a soft cloth and a mild
detergent (non solvent based cleaners only)
in water can be undertaken.
Additional removal of dust from the radiant
tubes, burner and heat exchanger can be
undertaken.
3.4 Frequency of Servicing
The manufacturer recommends that to
ensure continued efficient and safe
operation of the appliance it is
recommended that the heater is serviced
annually by a competent person e.g. every
year in normal working conditions but in
exceptional dusty or polluted conditions
more frequent servicing may be required.
The manufacturer offers a maintenance
service.
Details are available on request.
For Service requirements, please contact
AmbiRad
For further technical and service support
visit our Support Information Database at
www.s-i-d.co.uk
3. User & Operating Instructions.
Document reference number GB/VS/177A/0112 Replaces GB/VS/177A/0110
Nortek Global HVAC is a registered trademark of Nortek Global HVAC Limited. Because of continuous product innovation, Nortek Global HVAC reserves the right to change product specification without due notice.
NORTEK GLOBAL HVAC (UK) LTD
Fens Pool Avenue
Brierley Hill
West Midlands DY5 1QA
United Kingdom
Tel: [phone]
Fax: [phone]
[email protected]
www.ambirad.co.uk
Registered in England No. 1390934. Registered office: 10 Norwich Street, London, EC4A 1BD