Ambirad VPlus40 User manual

WARNING: Improper installation, adjustment,
alteration, service or maintenance can cause
property damage, injury or death. Read the installation,
operating and maintenance instructions thoroughly
before installing or servicing this equipment.
VPLUS OWNERS MANUAL
Vision Range

2
Introduction.
Document Index.
1 Installation Requirements
1.1 Health & Safety
1.2 Packing and Shipping Information
1.3 Heater Suspension
1.4 Wall Mounting
1.5 Clearance to Combustibles
1.6 Gas Connection & Supply Details
1.7 Electrical Connections
1.8 Ventilation Requirements
1.8.1 Unflued Units
1.8.2 Vertical Venting
1.8.3 Fresh Air Intake
1.9 Flue & Combustion Air Inlet
1.10 Technical Details
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 Reflectors
2.2.6 Bends
2.2.7 Burner/Fan Assembly
2.2.8 Detailed Assembly Drawings
Start Up Instructions
3.1 Tools Required
3.2 Start up procedure
4 Servicing Instructions
4.1 Tools Required
4.2 Burner Description
4.3 Burner Removal
4.4 Burner Gas Injector Servicing
4.5 Burner Head and Electrode Servicing
4.6 Combustion Fan Assembly
4.7 Radiant Tube Servicing
4.8 Reflector Servicing
4.9 Sweeping of Vent
4.10 Re-commissioning after Service
5 Spare Parts
6 Troubleshooting Guide
7 Replacing Parts
7.1 Burner Controller Replacement
7.2 Air Pressure Switch Replacement
7.3 Gas Valve Replacement
8 User and Operating Instructions
8.1 To Start Heater
8.2 To Switch Off Heater
8.3 Servicing
and servicing is undertaken on radiant tube
heaters specified in these instructions, due care
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 familiarize yourself with the
components and tools you require at the various
stages of assembly.
All Dimensions shown are in inches unless
otherwise stated.
The manufacturer reserves the right to alter
specifications without prior notice.
Welcome to the new range of high efficiency
AmbiRad VPLUS infra-red heaters. Local
regulations may vary and it is the installer’s
responsibility to ensure that such regulations
are satisfied.
All installation, assembly, commissioning and
service procedures must be carried out by
suitable qualified competent persons and
conform with local building codes, or in the
absence of local codes, with the National Fuel
Gas Code ANSI Z223.1/NFPA 54 or the
National Gas and Propane Installation Code
CSA B149.1
When assembling, installing, commissioning
1. Installation Requirements.
only be installed where flammable gases
or vapors are not generally present.
B. Heaters may be suspended either
horizontal or at an angle, or may be wall
mounted. See section 1.5 for clearance
dimensions.
C. The installation must conform with local
building codes or, in the absence of local
codes, with the National Fuel Gas Code,
ANSI Z223.1/NFPA 54 or the Natural Gas
and Propane Installation Code, CSA
B149.1.
1.1 Health and Safety
A. Heater is intended for heating
non-residential indoor spaces and should
Improper installation, adjustment,
alteration, service or maintenance
can cause property damage, injury or
death. Read the instructions thoroughly
before installing of servicing this
equipment.

3
D. The unit shall be electrically grounded in
accordance with National Electric Code
ANSJJNFPA 70-1987.
E. The heater may be installed in aircraft
hangars installed in accordance with the
Standard for Aircraft Hangars, ANSI/
NFPA 409 and in automotive garages
when installed in accordance with the
Standard for Parking Structures, ANSI/
NFPA 88A, or the Standard for Repair
Garages, ANSI/NFPA 88B, or the
Canadian Natural Gas and Propane
Installation Code, CSA B149.1, and are
so marked.
Ensure that minimum clearances will be
maintained to vehicles parked below the
heater.
1.2 Packing and Shipping Information
See section 2 for assembly drawings. Material
list with part numbers and descriptions for each
part will accompany each shipment.
Heaters include: Options:
Burner/Control 1 180° Bend
Radiant Tubes 1 or 2 90° Bends
Reflectors
Brackets Ball Valve
Fan Vent Hoods
U-Bend (U-tube only) Hanging Assembly
Flex Gas Connector* (Chain etc)
Tube Couplings
* Connector must comply with ANSI Z21.24/CSA 6.10.
Shipping packages for individual projects will be
boxed and crated as outlined in the specific bill
of lading.
1.3 Heater Suspension
Attachment to the heater support lugs should be
made by a ‘speed link’, D shackle or in the case
of drop rods, a closed formed hook. The
hanging attachments to overhead steelwork
etc. must be purpose made to good sound
engineering practice or of a proprietary type
fixing. They must be adequately fixed and
designed to carry the whole weight of the
heater. In the event of suitable roof steelwork
being unavailable, additional steelwork should
be fitted to enable vertical hangers to be used
for suspending the heaters.
These methods are illustrated in Figure 1. If
there are any doubts as to the strength or
suitability of roof steelwork to which heaters are
to be suspended, please refer to a Consultant,
Architect or owner of the building.
It is recommended that the heater is raised to its
final position once the assembly of the tube/
bracket/reflector has been completed. Longer
tube assemblies may be raised in more than
one sub-assembly with final tube connection
made in the air.
DROP ROD CHAIN 55° SUSPENSION
BEAM CLAMP
3/8"Ø ROD
TURNBUCKLE
(±3"ADJUSTMENT)
2/0 GA CHAIN
(TWISTED LINK, PLATED)
TUBE
NOTE.
HOOKS ARE TO
BE CLOSED UP
AFTER ASSEMBLY
OPTIONAL
REFLECTOR
BRACKET
EYE HOOKS
Figure 1. Recommended Methods of Heater Suspension.

4
Model Recommended Mounting Height (ft)
Standard Inclined
min recommended min recommended
40 12 14 10 11
60 12 14 10 11
100 14 16 12 13
125 14 16 12 13
150 16 18 14 15
170 16 18 14 15
200 18 20 16 17
80 12 14 10 11
Minimum clearance from the heater must be maintained from vehicles parked below heater.
In all situations, clearances to combustibles must be maintained. Signs should be posted in
storage areas to specify maximum stacking height to maintain required clearance to
combustibles. Refer to mounting clearance tables.
WARNING:
Clearance to Combustibles (in)
Model A B B1 C1 C2 C3 D1 D2 E
40 49 24 41 20 822 812 12
80 74 29 41 20 622 812 12
100 74 32 41 20 622 816 12
125 74 39 47 20 622 20 18 12
150 74 39 48 20 622 20 18 12
170 86 48 48 20 622 20 20 12
200 86 48 48 20 622 20 20 12
60 74 29 41 20 622 812 12
The suggested mounting heights for AmbiRad
heaters are given in table 1 below.
1.4 Wall Mounting
These radiant tube heaters can be wall
mounted using the appropriate bracket.
When using the wall mounting brackets the
heater must be inclined at an angle between
35° and 55°.
1.5 Clearance to Combustibles.
Minimum clearance to combustibles are shown
in Figure 2. Refer to table 2 below.

5
Figure 2 Clearance to Combustibles.
The minimum clearances to combustible materials are given in the tables below. These
minimum distances MUST be adhered to at all times.
C2
C1
A
B1
B
B
A
E
D2
0° to 55°
D1
Ensure that there is adequate
provision in the building for
combustion and ventilation air
supply. Installation must meet
minimum requirements and
appliciable codes.
Burner end.
Outlet end.
Angled view.
End view.
C3
Below
heater
Side
vented
Side
unvented
End
unvented
Above outlet
unvented
Above
Reflector
Above
Burner
Service
distance
Return end on
U tube heater
A

6
1.6 Gas Connection and Supply
The gas connection on the heater is ½”N.P.T
external thread.
Injector sizes and manifold pressure for the
burners are shown in the table 3. The gas
supply piping and connections must be installed
so that the minimum pressure stated is
achieved.
A gas shut off valve and union should be fitted
in the gas supply line close to the heater and a
⅛” N.P.T plugged tapping, accessible for test
gauge connection, provided immediately
upstream of the appliance gas inlet.
It is essential to provide some flexibility in the
final gas connection preferably by use of an
approved flexible gas connector or stainless
steel expansion loop.
Take care when making a gas connection
to the heater not to apply excessive turning
force to the internal controls.
Depending on the specific installation, the
flexible gas hose may be routed to the gas cock
at any of the following angles in relation to the
burner:
Care must be taken to observe the minimum
pipe bend diameter (minimum 10”, maximum
14”) & pipe expansion distance (minimum 1⅛”,
maximum 3¾”).
The correct installation as shown will allow
for approx 4” of movement due to expansion.
WARNING: Before installation, check
that the local distribution conditions,
nature of gas and pressure, and adjustment
of the appliance are compatible.
Figure 3. Correct orientation of Ball Valve
Gas Flow
Gas Flow
Figure 4. Correct Installation of Flexible
Gas Connection
WARNING: CONNECTOR MUST BE INSTALLED IN A “U” CONFIGURATION. USE
ONLY THE 36” LONG CONNECTOR OF ½” NOMINAL ID THAT WAS
FURNISHED WITH THIS HEATER.

7
1.7 Electrical Connections
This appliance must be electrically grounded
Supply 120V 60Hz single phase.
Standard heater 0.16HP.
Current rating 1.2 amp max (inductive).
Fuse: external 3 amp.
Important: All electrical work should be done by
a qualified electrician in strict accordance with
the National Electrical Code ANSI/NFPA 70. or
Canadian codes CSA C22.1
The electrical supply to the heater is by three
wires: live, neutral and ground connections.
Install in accordance with all state & local
codes.
It is recommended that the electrical circuit
controlling the heater or group of heaters
include thermostats and if required manual
control switches. All such controls and switch
gear must be rated to handle the total inductive
load of the circuit they control. For large
installations the use of relays or contactors
should be considered.
Control panels are available from the
manufacturer incorporating multiple Black Bulb
Thermostats controlling up to 10 heaters per
thermostat for zone control of the heated area.
(Control Panels
are not A.G.A/CSA
design certified)
Where alternative
manufactures’
controls are used,
please refer to
their instructions
for their siting and
installation details.
Table 3 Gas Supply Pressures
Gas Type Natural Gas
Max Supply Pressure (in W.C) 10.0
Min inlet gas supply (in W.C) 40 to 150,000 btu 5.0
Min inlet gas supply (in W.C) 170 to 200,000 btu 7.0
Gas Supply Connection ½” N.P.T internal thread
WARNING: Before making electrical
connections, switch OFF the main
electrical disconnect. There may be more
than one disconnect switch. Lock out
and tag switch with a suitable warning
label. Electrical shock can cause
personal injury or death.
Switch with
Fuse
Fan plugs into burner
Figure 5.a Typical VPLUS U range Wiring Connections
WARNING: FIRE OR EXPLOSION HAZARD - Expansion of the radiant pipe occurs with
each firing cycle causing the burner to move with respect to the gas line. This can
result in a gas leak producing an unsafe condition. It is therefore essential to provide some
flexibility in the final gas line connection - preferably by use of an approved armoured
flexible connector or stainless steel expansion loop as shown in the drawings.

8
Figure 6. Internal Burner Wiring Diagram.
Figure 5.b Typical VPLUS range Wiring Connections
MAIN J.S.T.
BROWN
GREY
BLACK
FLAME SENSOR
IGNITOR
8
7
911
10 12
13
24PURPLE
BLACK
LAMPS
ON
BURNER
YELLOW
GREY
BROWN
GREEN
BROWN
SOLENOID VALVE
SWITCH
N.C.
N.O.
C.
BROWN
BURNER
POWER INPUT
LN
FAN
N
L
ON
POWER
WHITE
WHITE
WHITE
WHITE
WHITE
VACUUM
BROWN
13
2
VALVE
J.S.T.
GREEN
WHITE
GREEN
YELLOW
Switch with
Fuse
Fan plugs into burner
If any of the original wire as supplied with the appliance must be replaced, it must be replaced
with wiring material having a temperature rating of at least 220°F/105°C

9
1.8 Vent Requirements and Details
1.8.1 Unvented units
Heaters maybe installed without a vent
providing the governing building codes are met
and consideration is properly given to
possibilities of condensation on cold surfaces.
Installation shall meet the following
requirements when unvented:
• Internal volume of the heated room must
be greater than 214cu.ft. per 100 BTU/
HR of heaters installed.
OR
• Natural or mechanical means shall be
provided to supply and exhaust at least 4
CFM per 1000 BTU per hour input of in-
stalled heaters.
• Combustion gasses shall not impinge on
combustible materials with a temperature
in excess of 150°F.
1.8.2 Vertical venting
The heater can be installed with a vertical vent.
All vent piping should be adequately supported
from the building structure and terminated with
an approved terminal. The maximum
recommended vent length is 25ft with a
maximum of two bends. All connections
should be properly sealed. refer fig 7a
1.9.3 Horizontal venting
Individual units can be vented horizontally
through side walls. Venting must be installed in
accordance with ANSI Z223.1 (NFPA-54) and
local codes. Recommended terminals are
AmbiRad V0700 for 4” and V0800 for 6” vent.
Maximum length of vent is 25ft with 2 - 90° long
radius elbows.
Runs of 12ft or shorter can use 4” dia vent.
Runs over 12ft should use 6” flue pipe.
Any portion of vent that passes through a
combustible wall must be insulated, or use an
approved insulating thimble.
Standard vent terminals must extend at least 6”
from the wall and at least 24” from any
combustible overhang. Protect the building
material from degradation by the vent gasses.
Vent joints should be sealed and secured using
at least 3 sheet metal screws. Should
condensation occur the vent should be
shortened or insulated.
The terminal should be at least 3ft away from
any air intake to the building
If the heater is equipped with ducted combustion
air, the vent terminal must be at least 3ft away
from the air inlet and located higher than the
inlet.
The vent terminal must be protected from
blockage by snow. Refer fig 7a & b
1.9 Fresh Air Intake
Whenever the heater is installed in locations
where airbourne dust or other pollutants are
present, a fresh air supply should be ducted to
the burner.
Fig-
Heater 1 Heater 2 Heater 3 Heater 4 Heater 5 Heater 6
Double pole insulator
adjacent to each
heater
Thermostats
Zone 1 Zone 2
Zone 1 Zone 2
Time
switch Manual
switch
L
N
G
Frost Thermostat
120v
1ph 60Hz
(Two Zones)
*
**
Double pole
fuse isolator
{
*Optional

10
A fresh air duct of 4” dia. Should be
installed from the fresh air to the air
intake connection on the fan
housing. A flexible jointing piece
should be installed at the fan
connection with hose clamps to
facilitate expansion and contraction.
The maximum recommended length
air duct is 25ft and the maximum
number of bends is 2. The minimum
length is 18”. The location of the
fresh air duct inlet must be where it
will receive dust free clean air. An
inlet cap with bird screen must be
fitted at the inlet of the duct. If the
duct inlet is located above the roof
the underside of the inlet terminal
must be at least 2ft above roof level
and at least 10” above any
projection on the roof within 7ft of
the inlet. Intake pipe, fittings and
sealant are not furnished by the
manufacturer. Refer fig 8c & d
REFLECTOR
END OF RADIANT TUBE
VENT ADAPTOR ELBOW
12'-0"
12'-0"
(APPROXIMATE
MAXIMUM DIMENSIONS)
CODE APPROVED VENT
THROUGH ROOF
SEAL
SUPPLIED BY OTHERS
ROOF
4" O.D. OR 6" O.D. FLUE
HIGH TEMPERATURE SILICONE
SEAL JOINTS WITH
(REQUIRED ONLY FOR 6" DIA. VENT)
4" TO 6"DIA. ALUMINIUM ADAPTER
RADIANT
TUBE
REFLECTOR
4" TO 6"DIA. ALUMINIUM ADAPTER TERMINAL
6"
COLLAR
SEAL JOINTS WITH
HIGH TEMPERATURE
WALL
(REQUIRED ONLY FOR 6" DIA. VENTS)
4" O.D. MAXIMUM LENGTH = 12'-0"
6" O.D.MAXIMUM LENGTH = 25'-0"
(PLUS A MAXIMUM OF 2 x 90° BENDS
END OF
SUPPLIED BY OTHERS
COUPLER
SILICONE
4" O.D. PIPE
CLAMPS
4" O.D. FLEXIBLE DUCT
BURNER
MAX LENGTH = 25'-0" WITH 2-90° LONG RADIUS BENDS
INLET WITH
6"
SEAL JOINTS WITH
SILICONE OR DUCT TAPE
WALL
BIRD SCREEN
Figure 8.a Vertical Venting.
Figure 8.b Horizontal Venting.
Figure 8.c Fresh Air Ducted Intake. Figure 8.d Wall Terminal Intake Kit.

11
1.10 Technical Details
Table 4 - Technical Details. All heaters to run on Natural Gas (G20)
Burner
Size
Nominal
Gross Heat
Input
Burner
Head Burner Orifice Plate Injector Injector Pressure
BTU/Hr Part No. Part No. Part No. Inches WG.
VPLUS200 200,000 201063-24 201631-32 3.5
VPLUS170 169,000 201063-24 201631-28 3.4
VPLUS150 150,000 201063-25 201007-30 4.2
VPLUS125 123,500 201063-26 201007-24 4.1
VPLUS100 100,000 201063-23 201007-21 3.5
VPLUS80 80,000 201063-29 201007-18 3.5
VPLUS40 41,500 201063-18 201007-13 4.2
200988
VPLUS60 60,000 201063-45 201007-15 3.5
No of Injectors 1
Gas Connection ½” N.P.T nipple.
Electrical Supply 120 volt 1 phase 60Hz
Vent size (in) 4” or 6”
Unitary Fan Motor Details 120 volt 1 phase 60Hz
Current Rating 1.2A MAX
Ignition Electronic Program Start up with Spark Ignition
Burner
Size
Combustion Fan
Details Pressure
Switch Min. Heater Length Max. Heater Length
Fan Type Orifice
Part No. Part No. U (ft) S (ft) U (ft) S (ft)
VPLUS200 2560-1 201911 201697 60 50 80 80
VPLUS170
201687
201425 60 50 80 80
VPLUS150 201637 40 40 60 70
VPLUS125 L200262 40 40 60 60
VPLUS100 L200281 40 30 40 50
VPLUS80 201654 20 20 40 40
VPLUS60 L200281 20 20 40 40
VPLUS40 201563 201508 20 10 20 30
201676

12
OPTIONS
1 All standard units fitted with unvented flue, natural gas, aluminum reflectors and ducted air attachments.
2 Tube length (U20-10ft and S20-20ft) 3 180° bend (U suffix), 1-90° bend (SE1 suffix), 2-90° bends (SE2 suffix) 4 Vented design (v suffix) 5 Stainless steel tubes (ST suffix) 6 Stainless steel reflectors (SR suffix) 7 End caps (E suffix)
MODEL HEAT
INPUT U TUBE STRAIGHT TUBE TUBE TYPE
MATERIAL MIN
DISTANCE
TO BEND
Btu/h U20 U40 U60 U80 S10 S20 S30 S40 S50 S60 S70 S80 SE1 SE2 AL.S MS
VPLUS200 200,000 00000000TUBE 1 & 2 REMAINDER 30
VPLUS170 169,000 00000000TUBE 1 & 2 REMAINDER 30
VPLUS150 150,000 00000000TUBE 1 REMAINDER 20 VPLUS125 123,500 0000000TUBE 1 REMAINDER 20
VPLUS100 100,000 000000TUBE 1 REMAINDER 20
VPLUS80 80,000 0000000TUBE 1 REMAINDER 10
VPLUS60 60,000 0 0 0 0
00TUBE 1 REMAINDER 10
VPLUS40 41,500 000000TUBE 1 REMAINDER 10
VPLUS100- U40- V- ST- SR- E
End caps Stainless steel reflectors Stainless steel tubes Vented heater U tube heater 20ft long (40ft long tubes) 100,000 Btu/h heater

13
2. Assembly Instructions.
2.2.3 Brackets
There can be four types of brackets supplied
with these heaters:
• Type ‘H’ are suspension brackets with
tube straps.
• Type ‘G’ are suspension brackets with
no tube straps.
2.2 Assembly Notes.
2.2.1 Tubes
Each heating unit has two types of emitter
tubes. The first tube section, connected to the
burner, will be AlumaTherm®, silver in color
and marked with yellow paint. The remaining
tubes are mild steel marked with blue paint.
Exception: 170,000 through 200,000 Btu units
require a second section of AlumaTherm®, 20ft
total, steel tube connected together by a high
temperature coupling. All other tube
connections are made with a band coupling.
Identify and position tubes on saw horses. For
aesthetics it is advisable to position all tube
seam facing down. Position coupling fastener
so that these cannot be seen from beneath the
heater.
Mark out the position of the bracket centres
from the dimensions shown on the assemblers'
drawings.
2.2.2 Turbulators (where fitted)
Insert turbulator into correct tube as indicated in
the assembly drawings
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.
Phillips
Screwdriver
Saw
Horses
Leather
Faced
Gloves
Tape
Measure
5/16”
Drive
Cordless
Drill
Wrench
Set
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.
Please read these assembly notes in
conjunction with the correct assembly
drawings (figs 14 to 28).
"A" VIEW ON "A"
3/16” (5mm)
5/32” (4mm)
Allen
wrench

14
A standard stainless steel 4” coupling which is
used for all other fixings.
Slide the coupler over the tube ensuring that the
rivet stop has butted up to the tube ends. Using
the 5/16” drive, tighten the bolts.
DO NOT OVERTIGHTEN.
Moving between the two tightening bolts, tighten
both ensuring that equal pressure is applied to
each in turn.Complete assembly by drilling and
screwing self tapping retention zip screws.
• Type ‘F’ are fixed reflector brackets.
• Type ‘S’ are sliding reflector brackets.
Slip the suspension brackets onto the tube
assembly. The fixed suspension point ’H’
shown on the drawings are adjacent to the
burner and secures the first suspension bracket
to the tube with a tube strap. All other
suspension brackets ’G’ shown on the
drawings, have floating suspension points.
Reflectors are fixed at point ’F’ with a reflector
support bracket and reflectors are held in
position with fixing screws. Fixed and sliding
joints alternate along the heater at the spacings
indicated on the individual heater assembly
sheets.
2.2.4 Couplers
There are two types of couplers for joining
radiant tubes and U bends.
A high temperature stainless steel 4” coupling
which is used to connect the FIRST and
SECOND radiant tubes on VPLUS 170 and
200 ONLY.
Slide the coupler over the tube ensuring that
the rivet stop has butted up to the tube ends.
Using the allen wrench, tighten the pins.
DO NOT OVERTIGHTEN.
Moving between the two set pins, tighten both
ensuring that equal pressure is applied to each
set pin in turn. Complete assembly by drilling
and screwing self tapping retention zip screws
2 x SCREWS TIGHTENED TO FIX REFLECTOR
At this point raise the tube assembly into
position and suspend from previously
fixed chains (2/0 min. gauge), or attach
to wall mounting brackets. Wall
mounting brackets must support heater
at an angle of inclination of 45° ± 10°.
Longer tube assemblies may be raised in
more than one sub-assembly with final
tube connection made in the air. It is
recommended that the heater be
suspended to slope slightly down-ward
from the burner approximately 1” in 20
feet, but not more than 2” total overall.
STAINLESS
STEEL
SPACER
SELF TAPPING ZIP
SCREWS
DRAW BAND COUPLING
BOLTS
Self Tapping
Zip Screws
Draw Band Coupling
Bolts
Stainless
Steel
Spacer
LEAVE 1/8" MIN. GAP TO ALLOW REFLECTOR TO SLIDE

15
Typical usage of bend kits:
Bend kit comprises of:
1 off Bend (90° or 180°)
1 off Coupler
1 off extra Support Bracket
1 off extra Suspension Bracket
1 off End Cap (optional)
Fasteners as necessary.
2.2.7 Burner/Fan Assembly.
Slide the burner assembly onto the open tube
end, ensuring it is fully engaged. Secure with set
screws.
For the purpose of unvented applications, a 4”
90° elbow should be used on the terminating
end of the radiant tube sections. This elbow
should be turned with the outlet facing either
side.
Connect Gas and Electrical supplies as
described in sections 1.6 and 1.7.
2.2.8 Detailed Assembly Drawings
The following pages show the technical
dimensional details of the VPLUS range of
heaters.
Please note the heater type, length and
reference number from the delivery/advice note
before identifying the correct model drawing.
2.2.5 Reflectors.
After removing the protective plastic coating,
slip the reflectors through the hanger brackets
until they overlap each other.
The first and second reflector are fixed at the
point F by a type F reflector support bracket
and are held in place by tightening the fixing
screws.
Alternate fixings of further reflectors by type S
and type F reflector brackets and space as
indicated by individual assembly sheets.
2.2.6 Bend(s) (where fitted)
The heater can be installed with 1 or 2 90°
bends or a 180° U bend.
Slide the bend into the open end of the
coupler ensuring that the rivet stop has butted
up to the tube ends. Refer to 2.2.4 for
fastening.
All reflectors must be positioned/
attached to the brackets exactly as
detailed in the assembly drawings.
ASSEMBLY
HREFLECTORS FSF
BURNER
90° Bend
End Caps (optional )
End Caps (optional )
16” crs
15”
180° Bend
Reflector support bracket assemblies are
fitted at each reflector joint, with the clamp
screws adjusted so that reflectors are
fixed together.
Each subsequent reflector must
OVERLAP the previous one as shown
below and to a distance as indicated by
their individual assembly sheets.

16
Figure 9. VPLUS Heater Assembly: Model Linear 40-S10.
TURBULATOR DETAIL PT. NO. 201704
GH
BURNER
END
CAPS
(OPTIONAL)
6"
4"
VPLUS40-S10
MODEL NUMBER
41,500
BTU/HR
10' 3" REFLECTOR
END
CAPS
(OPTIONAL)
TURBULATOR
SEE DETAIL
F
DISTANCE BETWEEN
SUSPENSION POINTS
NO TO EXCEED 12'
11'6½" NOMINAL OVERALL ASSEMBLED LENGTH
FIRST SUSPENSION POINT TUBE STRAP
"A" VIEW ON "A"
DETAIL
TUBE & REFLECTOR SUSPENSION BRACKET
DETAIL
DETAIL
TUBE
STRAP
RADIANT
TUBE
SUPPLIED
NUT & BOLT
SUSPENSION
BRACKET
SLIDING REFLECTOR BRACKET
DETAIL
FIXED REFLECTOR BRACKET
REFLECTOR
REFLECTOR
TUBE
STRAP
RADIANT
TUBE
2 x SCREWS TIGHTEN TO
FIX REFLECTOR
2 x SCREWS MIN 1/8" GAP TO
ALLOW REFLECTOR TO SLIDE
SUPPLIED
NUT &
BOLT
C
L
2" MINIMUM
REFLECTOR OVERLAP
H G
SF
STANDARD 4" COUPLER

17
Figure 10. VPLUS Heater Assembly: Model Linear 40-S20, 60-S20 and 80-S20.
G
6"-9" REFLECTOR OVERLAP
F
GH
COUPLERS
BURNER
END
CAPS
(OPTIONAL)
6"
4"
VPLUS40-S20
MODEL NUMBER
41,500
BTU/HR
VPLUS60-S20 60,000
10' 3" REFLECTORS TYPICAL OF 2
END
CAPS
(OPTIONAL)
BURNER INSERT
SEE DETAIL
S
DISTANCE BETWEEN
SUSPENSION POINTS
NO TO EXCEED 12'
21'6½" NOMINAL OVERALL ASSEMBLED LENGTH
VPLUS80-S20 80,000
FIRST SUSPENSION POINT TUBE STRAP
"A" VIEW ON "A"
DETAIL
TUBE & REFLECTOR SUSPENSION BRACKET
DETAIL
DETAIL
TUBE
STRAP
RADIANT
TUBE
SUPPLIED
NUT & BOLT
SUSPENSION
BRACKET
SLIDING REFLECTOR BRACKET
DETAIL
FIXED REFLECTOR BRACKET
REFLECTOR
REFLECTOR
TUBE
STRAP
RADIANT
TUBE
2 x SCREWS TIGHTEN TO
FIX REFLECTOR
2 x SCREWS MIN 1/8" GAP TO
ALLOW REFLECTOR TO SLIDE
SUPPLIED
NUT &
BOLT
C
L
2" MINIMUM
REFLECTOR OVERLAP
BURNER INSERT DETAIL PT. NO. 201688
NOTE: FOR VPLUS80 AND 100 ONLY
H G
SF
STANDARD 4" COUPLER

18
Figure 12. VPLUS Heater Assembly: Model Linear 40-S30, 60-S30, 80-S30 and 100-S30.
G
6" REFLECTOR OVERLAP 6" REFLECTOR OVERLAP
F
GGH
S F
COUPLERS
BURNER
END
CAPS
(OPTIONAL)
6"
4"
31'6½" NOMINAL OVERALL ASSEMBLED LENGTH
VPLUS40-S30
MODEL NUMBER
41,500
BTU/HR
VPLUS80-S30 80,000
10' 3" REFLECTORS TYPICAL OF 3
VPLUS100-S30 100,000
END
CAPS
(OPTIONAL)
BURNER INSERT
SEE DETAIL
DISTANCE BETWEEN
SUSPENSION POINTS
NO TO EXCEED 12'
FIRST SUSPENSION POINT TUBE STRAP
"A" VIEW ON "A"
DETAIL
TUBE & REFLECTOR SUSPENSION BRACKET
DETAIL
DETAIL
TUBE
STRAP
RADIANT
TUBE
SUPPLIED
NUT & BOLT
SUSPENSION
BRACKET
SLIDING REFLECTOR BRACKET
DETAIL
FIXED REFLECTOR BRACKET
REFLECTOR
REFLECTOR
TUBE
STRAP
RADIANT
TUBE
2 x SCREWS TIGHTEN TO
FIX REFLECTOR
2 x SCREWS MIN 1/8" GAP TO
ALLOW REFLECTOR TO SLIDE
SUPPLIED
NUT &
BOLT
C
L
2" MINIMUM
REFLECTOR OVERLAP
BURNER INSERT DETAIL PT. NO. 201688
NOTE: FOR VPLUS80 AND 100 ONLY
H G
SF
STANDARD 4" COUPLER
VPLUS60-S30 60,000

19
Figure 13. VPLUS Heater Assembly: Model Linear 80-S40, 100-S40, 125-S40 and 150-S40.
G
F
G GH
S S
COUPLERS
BURNER
END
CAPS
(OPTIONAL)
6"
4"
41'6½" NOMINAL OVERALL ASSEMBLED LENGTH
MODEL NUMBER BTU/HR
VPLUS80-S40 80,000 VPLUS100-S40 100,000
END
CAPS
(OPTIONAL)
DISTANCE BETWEEN
SUSPENSION POINTS
NO TO EXCEED 12'
VPLUS125-S40 123,500 VPLUS150-S40 150,000
10' 3" REFLECTORS
TYPICAL OF 4
6" REFLECTOR
OVERLAP
G
F
3" REFLECTOR
OVERLAP
BURNER INSERT
SEE DETAIL
6" REFLECTOR
OVERLAP
FIRST SUSPENSION POINT TUBE STRAP
"A" VIEW ON "A"
DETAIL
TUBE & REFLECTOR SUSPENSION BRACKET
DETAIL
DETAIL
TUBE
STRAP
RADIANT
TUBE
SUPPLIED
NUT & BOLT
SUSPENSION
BRACKET
SLIDING REFLECTOR BRACKET
DETAIL
FIXED REFLECTOR BRACKET
REFLECTOR
REFLECTOR
TUBE
STRAP
RADIANT
TUBE
2 x SCREWS TIGHTEN TO
FIX REFLECTOR
2 x SCREWS MIN 1/8" GAP TO
ALLOW REFLECTOR TO SLIDE
SUPPLIED
NUT &
BOLT
C
L
2" MINIMUM
REFLECTOR OVERLAP
BURNER INSERT DETAIL PT. NO. 201688
NOTE: FOR VPLUS80 AND 100 ONLY
H G
SF
STANDARD 4" COUPLER

20
Figure 14. VPLUS Heater Assembly: Model Linear 100-S50, 125-S50, 150-S50, 170-S50, and 200-S50
G
F
G GH
S F
* HT COUPLER
ON VPLUS 170 & 200
BURNER
END
CAPS
(OPTIONAL)
6"
4"
51'6½" NOMINAL OVERALL ASSEMBLED LENGTH
MODEL NUMBER BTU/HR
VPLUS100-S50 100,000
END
CAPS
(OPTIONAL)
DISTANCE BETWEEN
SUSPENSION
POINTS NOT TO EXCEED 12'
VPLUS125-S50 123,500 VPLUS150-S50 150,000
10' 3" REFLECTORS
TYPICAL OF 5
G
S
BURNER INSERT
SEE DETAIL
6" REFLECTOR
OVERLAP
FIRST SUSPENSION POINT TUBE STRAP
"A" VIEW ON "A"
DETAIL
TUBE & REFLECTOR SUSPENSION BRACKET
DETAIL
DETAIL
TUBE
STRAP
RADIANT
TUBE
SUPPLIED
NUT & BOLT
SUSPENSION
BRACKET
SLIDING REFLECTOR BRACKET
DETAIL
FIXED REFLECTOR BRACKET
REFLECTOR
REFLECTOR
TUBE
STRAP
RADIANT
TUBE
2 x SCREWS TIGHTEN TO
FIX REFLECTOR
2 x SCREWS MIN 1/8" GAP TO
ALLOW REFLECTOR TO SLIDE
SUPPLIED
NUT &
BOLT
C
L
2" MINIMUM
REFLECTOR OVERLAP
BURNER INSERT DETAIL PT. NO. 201688
NOTE: FOR VPLUS100 ONLY
H G
SF
STANDARD 4" COUPLER
* HIGH TEMP 4" COUPLER
MODEL NUMBER BTU/HR
*VPLUS170-S50 169,000 *VPLUS200-S50 200,000
6" REFLECTOR
OVERLAP
COUPLERS
G
F
3" REFLECTOR OVERLAP
3" REFLECTOR OVERLAP