Infraglo 700 Series User guide

Our Address
Puravent, Adremit Limited, Unit 5a, Commercial Yard,
Settle, North Yorkshire, BD24 9RH
Get In Touch
Call: 0845 6880112
Email: [email protected]
Form# 44201490
May 2020
Overhead Radiant Plaque Heaters
INSTALLATION, SERVICING AND OPERATING INSTRUCTIONS
OWNER / INSTALLER: For your safety this manual must be carefully and thoroughly read and understood
before installing, operating or servicing this heater. This heater is intended for use with either Natural Gas or
Propane Gas. It must be installed by a qualified service person or a licensed contractor in accordance with
state and local codes.
700 (PILOT) SERIES
MODELS: 708AN, 716AN, 722AN, 731AN, 731ANHILO
716AP, 731AP, 731APHILO
INSTALLER: This manual is the property of the owner. Please present this manual to the owner when
you leave the job site.
WARNING:Improper installation, adjustment, alteration, service, or maintenance
can cause property damage, injury or death. Read the installation,
operation and maintenance instructions thoroughly before installing or
servicing this equipment.
Before installation, check that the local distribution conditions, nature
of gas and pressure and adjustment of the appliance are compatible.
In locations used for the storage of combustible materials, signs must
be posted to specify the maximum permissible stacking height to
maintain the required clearances from the heater to the combustibles.
Signs must either be posted adjacent to the heater thermostats or in
the absence of such thermostats, in a conspicuous location.
Infraglo Limited
Dannemora Drive
Greenland Road Industrial Park
Sheffield S9 5D UK Tel: [phone]
Email: [e-mail]
Country : GB, I 655
NOT FOR RESIDENTIAL USE.
This heater is not approved in any residential application. This includes (but is not limited
to) the home, living quarters, attached garages, etc. Installation in residential indoor
spaces may result in property damage, asphyxiation, and serious injury or death.

Our Address
Puravent, Adremit Limited, Unit 5a, Commercial Yard,
Settle, North Yorkshire, BD24 9RH
Get In Touch
Call: 0845 6880112
Email: [email protected]
1 Form 44201490
May 2020
TABLE OF CONTENTS
Section Title Starting Page
1. Safety 2
2. Installer Responsibility 2
3. General Information 3
4. Minimum Clearances to Combustion 5
5. Technical Data 7
6. Dimensions –Models 708A, 716A, 722A 10
6.1 Dimensions –Models 731A 10
7. Un-Packing 11
8. Installation 11
8a. Suspension 11
9. Gas Supply 12
10. Electrical Supply 14
11. Ventilation 16
11a. Ventilation by Thermal Evacuation 17
11b. Ventilation by Mechanical Evacuation 17
11c. Ventilation by Natural Air Change 17
11d. Air Supply 17
12. Assembly 18
12a. 708A, 716A, 722A, 731A (Direct Burner Spark Ignition) 18
12b. 731A Hi/Lo (Direct Burner Spark Ignition) 18
12c. 708A, 716A, 722A (Standing Pilot Ignition 19
13 Commissioning 19
(Direct Burner Spark Ignition Models)
13a. Ignition 19
13b. Shut Down 20
13c. Checking Gas Pressure 20
13d. Flame Supervision 21
(Standing Pilot Ignition Models)
13e Ignition 21
13f. Shut Down 22
13g. Checking Gas Pressure 22
13h. Flame Supervision 23
14. Servicing 23
14a. Ignition Electrode 23
14b. Flame Sensor Probe 24
14c. Venturi Fabrication 24
14d. Injector 24
14e. Electrical Wiring 24
14f. Reflector 24
14g. Emitter Assembly (ceramic plaque) 24
14h. Pilot Burner Frame (Standing Pilot Ignition) 25
14i. Pilot Injector (Standing Pilot Injector) 25
14j. Re-assemble and Commission 25
14k. Auxiliary Controls 25
15. Replacing Components 26
15a. Ignition Electrode 26
15b. Flame Sensor 26
15c. Ignition Control (SIT #0.579.019) 26
15d. Injector 27
15e. Venturi Fabrication 27
15f. Twin Solenoid Control Valve (direct burner spark ignition) 27
15g. Millivolt Control Valve (Standing Pilot Ignition) 27
15h. Thermocouple (Standing Pilot Ignition) 28
15i. Thermopile (Standing Pilot Ignition) 27
15j. Pilot Injector (Standing Pilot Ignition) 28
15k. Pilot Burner Frame (Standing Pilot Ignition) 28
15l. Reverberatory Screen 28
15m. Emitter Assembly 28
16a. Operating Instructions (direct burner spark ignition models) 29
16b. Operating Instructions (standing pilot ignition models) 29
17. Replacement Parts Guide (Models 708A, 716A, 722A) 30
17.1 Replacement Parts Guide (Models 731A) 32

Our Address
Puravent, Adremit Limited, Unit 5a, Commercial Yard,
Settle, North Yorkshire, BD24 9RH
Get In Touch
Call: 0845 6880112
Email: [email protected]
2 Form 44201490
May 2020
!WHAT TO DO IF YOU SMELL GAS:
! DO NOT try to light any appliance. Extinguish any open flame. Open windows.
! DO NOT touch any electrical switch. DO NOT use any telephone in your building.
!Immediately call your gas supplier from a neighbor’s telephone. Follow the gas
supplier's instructions.
! If you cannot reach your gas supplier, call the Fire Department.
1) SAFETY
This heater is a self-contained infrared radiant ceramic heater. Safety information required during installation and
operation of this heater is provided in this manual and the labels on the product. The installation, service and
maintenance of this heater must be performed by a contractor qualified in the installation and service of gas fired
heating equipment.
All personnel in contact with the heater must read and understand all safety information, instructions and labels
before operation. The following symbols will be used in this manual to indicate important safety information.
Warning instructions must be followed to prevent or avoid hazards which
may cause serious injury, property damage or death.
Caution instructions must be followed to prevent incorrect operation or
installation of the heater which may cause minor injury or property
damage.
2) INSTALLER RESPONSIBILITY
The installer is responsible for the following:
1. The heater installation, electrical and gas supplies must be installed in accordance with these installation
instructions and any applicable codes and regulations.
2. Every heater shall be located with respect to building construction and other equipment so as to permit access
to the heater.
3. Each installer must follow the clearances to combustible materials for the heaters.
4. Install the heater so that the supports and hangers are correctly spaced in accordance with these instructions.
The heater must be supported by materials having a working load limit of at least 40kg.
5. Supply the owner with a copy of these Installation and Operation Instructions.
6. Ventilation Gravity or mechanical means shall be provided to supply at least 10m3/h of exhaust air per kw of
operating heat input.
7. Never use the heater as a support for a ladder or other access equipment. Do not hang anything from the
heater.
8. Supply all installation materials necessary that are not included with the heater.
9. Check the nameplate to make sure that the burner is correct for the gas type in the building.
WARNING:
♦Installation and service must be performed by a qualified installer, service agency or
the gas supplier.
♦If the information in these instructions is not followed exactly, a fire or explosion may
result causing property damage, personal injury or death.
♦DO NOT store or use gasoline or other flammable vapors and liquids in the vicinity of
this or any other appliance.

Our Address
Puravent, Adremit Limited, Unit 5a, Commercial Yard,
Settle, North Yorkshire, BD24 9RH
Get In Touch
Call: 0845 6880112
Email: [email protected]
3 Form 44201490
May 2020
3) GENERAL INFORMATION
This heater is a self-contained infrared radiant plaque heater for use in locations where flammable gases or vapors
are not generally present and is intended for space heating non-residential spaces.
SAFETY REQUIREMENTS
! The heater area must be kept clear and free from combustible materials, gasoline and other flammable vapors
and liquids.
! This heater is designed for use with one type of gas (LPG or Natural). Make sure that the type of gas to be
supplied to this heater matches that shown on the heater rating plate.
!DO NOT install this heater directly onto an LPG container or propane cylinder without directions from your
propane company. LPG containers (propane cylinders) must not be stored indoors or in the vicinity of any gas -
burning appliance.
! Children and adults should be alerted to the hazards of high surface temperatures and should stay away to avoid
burns or clothing ignition.
! Clothing or other flammable materials should not be hung from the heater or placed on or near the heater.
! Young children should be carefully supervised when they are in the same space as the heater.
!NEVER attempt to service the heater while it is plugged in, operating or hot. Any guard or other protective device
removed for servicing a heater must be replaced prior to operating the heater.
! Installation and repair should be done by a qualified service person. The heater should be inspected before use
and at least annually by a qualified service person. More frequent cleaning may be required as necessary. It is
imperative that the control compartment, air passageways and burner of the heater be kept clean.
Installation of this heater must be in accordance with all applicable codes shown in the instructions and/or the
local codes and authorities having jurisdiction. In the UK all 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. Installation practices must take into account 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
7671:2001), BS 6896:2005 (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.
Clearances to combustibles as outlined in the manual should always be observed. In areas used for storage of
combustible materials where they may be stacked below the heater, the installer must post signs that will “specify
the maximum permissible stacking height to maintain the required clearances from the heater to combustibles.”
WARNING:Certain materials or objects, when stored under the heater will be subjected to radiant heat and could
be seriously damaged. Observe the MINIMUM CLEARANCES TO COMBUSTIBLES listed in this
manual and on the heater at all times.
Every heater shall be located with respect to building construction and other equipment so as to permit access to
the control housing. Each installer shall use skillful and reliable installation practices when locating the heaters and
must give consideration to service accessibility.
This heater is for INDOOR INSTALLATION ONLY and is used in UNVENTED mode. The term Unvented actually means
Indirect Vented. While the products of combustion are expelled into the building, national codes require ventilation
in the building to dilute these products of combustion. This ventilation must be provided by gravity or mechanical
means. Ventilation requirements are addressed further in these instructions.
These instructions are only valid if the following country code is on the appliance GB or IE. If this code is not present
on the appliance, it is necessary to refer to the technical instructions which will provide the necessary information
concerning the modification of the appliance to the conditions of use for the country.
Although these heaters may be used in many applications other than space heating (e.g., process heating), Infraglo
will not recognize the warranty for any use other than space heating.
This heater is not an explosion proof heater. Where the possibility of exposure to volatile and low flash point
materials exists, it could result in property damage or death. This heater must not be installed in a spray booth
where the heater can operate during the spraying process. Consult your local fire marshal or insurance company.
For optimum temperature control, do no locate thermostats in shaded or draughty locations outside the area to be
heated. The sensor should also be shielded from direct radiation to prevent short cycling of the heater.
This heater must be applied and operated under the general concepts of reasonable use and installed using best
building practices.

Our Address
Puravent, Adremit Limited, Unit 5a, Commercial Yard,
Settle, North Yorkshire, BD24 9RH
Get In Touch
Call: 0845 6880112
Email: [email protected]
4 Form 44201490
May 2020
It is the responsibility of the qualified installer to supply the appropriate lifting equipment to safely installer the
radiant tube heater. Tools required for the safe installation, startup and maintenance are various screwdrivers,
wrenches, pipe wrenches, volt and multimeter, air and gas manometer and required tools to safely install the
chosen hanging materials.
This appliance can be used by children aged from 8 years and above and persons 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 must be supervised not to play with the appliance.

Our Address
Puravent, Adremit Limited, Unit 5a, Commercial Yard,
Settle, North Yorkshire, BD24 9RH
Get In Touch
Call: 0845 6880112
Email: [email protected]
Form 44201190
March 2017
4) MINIMUM CLEARANCES TO COMBUSTIBLES
For maximum safety the building must be evaluated for hazards before installing the heater system.
Examples include, but are not limited to:
Gas and electrical lines
Combustible and explosive materials
Chemical storage areas
Areas of high chemical fume concentrations
Provisions for accessibility to the heater
Adequate clearances around the openings
Combustion and ventilating air supply
Vehicles parking areas
Vehicles with lifts or cranes
Storage areas with stacked materials
Lights
Sprinkler heads
Overhead doors and tracks
Dirty, contaminated environment
A critical safety factor to consider before installation is the clearances to combustible materials. Clearance to
combustibles is defined as the minimum distance you must have between the infrared surface, or reflector,
and the combustible item. Considerations must also be made for moving objects around the infrared heater.
The following is a partial list of items to maintain clearances from:
Combustible Items Include:
Wood
Paper
Fabric
Chemicals
Wall or roof insulation
5
Moving Objects Include:
Overhead doors
Vehicles on lifts
Cranes
Hoists
Car wash equipment

Our Address
Puravent, Adremit Limited, Unit 5a, Commercial Yard,
Settle, North Yorkshire, BD24 9RH
Get In Touch
Call: 0845 6880112
Email: [email protected]
When installing the infra-red heater system, the minimum clearances to combustibles must be maintained. These
distances are shown in Chart below and on the heater. If you are unsure of the potential hazards, consult your local
fire marshal, fire insurance carrier or other qualified authorities on the installation of gas fired infra-red heaters for
approval of the proposed installation.
Minimum clearances shall be measured from the outer surfaces as shown below:
Table 1
MODEL
HORIZONTAL
450
ABOVE
BELOW
SIDE
FRONT
BACK
FRONT
BACK
708A
610mm
610mm
865mm
205mm
915mm
1220mm
610mm
716A
915mm
915mm
1830mm
305mm
915mm
2590mm
1145mm
722A
1145mm
1145mm
2085mm
305mm
915mm
2975mm
1270mm
731A, 731AHILO
1375mm
1375mm
2365mm
305mm
915mm
3355mm
1525mm
Fig. 1
NOTE: The clearance to combustible materials noted above must be maintained at all times and the same
clearance distances must be adhered to from any other materials that may be damaged by temperatures 90oF
above the ambient temperature. It is the installer’s responsibility to ensure that building materials with a low heat
tolerance (such as plastic, vinyl siding, canvas, tri-ply etc.) which may degrade at lower temperatures are protected
to prevent degradation. Clearances to combustibles are posted on the reflector near the control end of the heater.
Fire sprinkler heads must be located at an appropriate distance from the heater. This distance
may exceed the published clearance to combustibles. Certain applications will require the use of high temperature
sprinkler heads or relocation of the heaters.
Sprinkler systems containing propylene glycol or other flammable substances are not to be used in conjunction
with this heater without careful consideration for and avoidance of potential fire or explosion hazards. For further
information consult NFPA 13. Always observe applicable state and local codes.
6
INSTALLER
In locations used for storage of combustible materials where they may be stacked below the heater,
NFPA 54 requires that the installer must post signs that will “specify the maximum permissible stacking
height to maintain the required clearances from the heater to combustibles.” Infraglo recommends
posting these signs adjacent to the heater thermostat or other suitable location that will provide
enhanced visibility. It is important to provide warnings to alert individuals of potential hazards and safety
actions. Posted signs should state the hazards for the particular application and be legible to building
occupants.
45° max
Above
Below
Below
Side Side
Back
Front
Back
Front
Above
Above

Our Address
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Settle, North Yorkshire, BD24 9RH
Get In Touch
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5) TECHNICAL DATA
Table 2
MODEL
708AN
Heat Input
7.6kW (Hs) 6.84kW (Hi)
Appliance Type
A1
Appliance Cat.
I2H
Adjusted for
2H G20 20mbar
Setting Pressure
12.0mbar
Injector (1 piece)
Ø2.2mm
NOx Class
4
Electrical Supply
230v~50Hz 25W
Fuse Externally
3A
Dimensions
L = 0.645m W = 0.428m H= 0.325m
Weight
6.0kg
Gas Connection
Rp - ½
Table 3
MODEL
716AN
716AP
Heat Input
15.2kW (Hs) 13.68kW (Hi)
15.0kW (Hs) 13.5kW (Hi)
Appliance Type
A1
A1
Appliance Cat
I2H
I3+
Adjusted for
2H G20 20mbar
3+ G30/G31 29/37mbar
Setting Pressure
12.0mbar
None
Injector (1 piece)
Ø3.1mm
Ø1.9mm
NOx Class
4
4
Electrical Supply
230V ~ 50Hz 25W
Fuse Externally
3A
Dimensions
L = 0.925m W = 0.435m H = 0.325m
Weight
11.0kg
Gas Connection
Rp - ½
Table 4
MODEL
722AN
Heat Input
21kW (Hs) 18.9kW (Hi)
Appliance Type
A1
Appliance Cat
I2H
Adjusted for
2H G20 20mbar
Setting Pressure
15.0mbar
Injector (1 piece)
Ø3.4mm
NOx Class
4
Electrical Supply
230V ~ 50Hz 25W
Fuse Externally
3A
Dimensions
L = 1.205m W = 0.435m H = 0.325m
Weight
14.0kg
Gas Connection
Rp - ½
7

Our Address
Puravent, Adremit Limited, Unit 5a, Commercial Yard,
Settle, North Yorkshire, BD24 9RH
Get In Touch
Call: 0845 6880112
Email: [email protected]
Table 5
MODEL
731AN
731AP
Heat Input
30.4kW (Hs) 27.36kW (Hi)
30.0kW (Hs) 27kW (Hi)
Appliance Type
A1
A1
Appliance Cat
I2H
I3+
Adjusted for
2H G20 20mbar
3+ G30/31 29/37mbar
Setting Pressure
12.0mbar
None
Injector (2 pieces)
2 x Ø3.1mm
2 x Ø1.9mm
NOx Class
4
4
Electrical Supply
230V ~ 50Hz 25W
Fuse Externally
3A
Gas Connection
Rp - ½
Dimensions
L = 1.455m W = 0.435m H = 0.325
Weight
24.0kg
Table 6
MODEL
731ANHILO
731APHILO
Heat Input
30.4kW/15.2kW (Hs)
30.0kW/15.0kW (Hs)
Appliance Type
A1
A1
Appliance Cat
I2H
I3+
Adjusted for
2H G20 20mbar
3+ G30/G31 29/37mbar
Setting Pressure
12.0mbar
None
Injector (2 pieces)
2 x Ø3.1mm
2 x Ø1.9mm
NOx Class
4
4
Electrical Supply
230V ~ 50Hz 25W
Fuse Externally
3A
Gas Connection
Rp - ½
Dimensions
L = 1.455m W = 0.435m H = 0.325m
Weight
24.0kg
8

Our Address
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Settle, North Yorkshire, BD24 9RH
Get In Touch
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Email: [email protected]
Table 7
MODEL
708AN (PILOT)
Heat Input
7.6kW (Hs) 6.84kW (Hi)
Appliance Type
A1
Appliance Cat
I2H
Adjusted for
2H G20 20mbar
Setting Pressure
12.0mbar
Injector (1 piece)
Ø2.2mm
NOx Class
4
Pilot Injector
TJ020
Dimensions
L = 0.615m W = 0.428 H = 0.325m
Weight
6.0kg
Gas Connection
Rp - ½
Table 8
MODEL
716AN (PILOT)
716AP (PILOT)
Heat Input
15.2kW (Hs) 13.68kW (Hi)
15.0kW (Hs) 13.5kW (Hi)
Appliance Type
A1
A1
Appliance Cat
I2H
I3P
Adjusted for
2H G20 20mbar
3P G31 37mbar
Setting Pressure
12.0mbar
24.0mbar
Injector (1 piece)
Ø3.1mm
Ø2.1mm
NOx Class
4
4
Pilot Injector
TJ020
TJ012
Dimensions
L = 0.895 W = 0.435 H = 0.325
Weight
11.0kg
Gas Connection
Rp - ½
Table 9
MODEL
722AN (PILOT)
Heat Input
21.0kW (Hs) 18.9kW (Hi)
Appliance Type
A1
Appliance Cat
I2H
Adjusted for
2H G20 20mbar
Setting Pressure
15.0mbar
Injector (1 piece)
Ø3.4mm
NOx Class
4
Pilot Injector
TJ020
Dimensions
L = 1.175m W = 0.435m H = 0.325m
Weight
14.0kg
Gas Connection
Rp - ½
9

Our Address
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Settle, North Yorkshire, BD24 9RH
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Email: [email protected]
6) DIMENSIONS –Models 708A, 716A, 722A (DBI controls shown)
Fig. 2
6.1) DIMENSIONS –Models 731A (DBI controls shown)
Fig. 3
10

Our Address
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Settle, North Yorkshire, BD24 9RH
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7) UN-PACKING
The appliance is supplied in a carton, assembled complete and ready for installation. Any optional equipment
supplied is packed inside the carton also.
8) INSTALLATION
Not withstanding their limited scope, the appliance should be installed in accordance with the relevant
provisions of any National Gas Safety (Installation and Use Regulations). Due account should also be taken of
any obligations arising from any National Health and Safety at Work Regulations, National and Local Building
Regulations and National Electrical Wiring Regulations. The appliance must be installed, and where necessary,
converted for use on other gases, by a qualified installer.
A. Suspension
1. The appliance should be located with respect to building construction and other equipment, to permit access to
the appliance for servicing etc.
2. For suspending the appliance, it is recommended that suitable protected welded chain (ø3mm x 65 links/m) or
ø6mm (minimum) mild steel drop rods and suitable brackets are used. Attach the chains or drop rods to the 4
holes located at each corner of the appliance plenum body, by use of M8 screws and nuts. Providing at least
ø5mm closed link hooks are used, chains may be attached directly to the 4 holes in the appliance plenum body.
3. The appliance must be suspended with its longitudinal axis horizontal, but may have its lateral axis either
horizontal or at an angle of up to 450(maximum) from the horizontal, as shown in Fig. 4. below.
IMPORTANT: When suspended at an angle from the horizontal, the appliance MUST be positioned
with the exhaust vent (located between the plenum body and reflector) along the higher side of the
appliance.
4. The appliance may be mounted off a vertical surface also in which case it is recommended that use is made of
the purpose designed pair of brackets that are available as optional equipment. The brackets provide for a
range of mounting angles from the horizontal (150, 22.50, 300, 37.50, 450) by virtue of adjustable straps attached
to the surface mounted brackets.
5. The brackets should first be fixed to the vertical surface by means of 4 bolts (M8 minimum) through pre-formed
holes in the brackets. Attach the brackets to the 4 holes located at each corner of the appliance plenum body
by use of M8 screws and nuts.
11

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Fig. 4
9) GAS SUPPLY
12
45° max Adjustable
Wall Brackets
15°/22.5°/30°/37.5°/45°
Exhaust Vent
Exhaust Vent
Exhaust Vent
2°

Our Address
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Settle, North Yorkshire, BD24 9RH
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1. Natural Gas - G20 at 20mbar supply pressure (appliance cat 2H).
Maximum supply pressure (Pmax) - 25 mbar
Minimum supply pressure (Pmin) - 17mbar
Setting Pressure - 12.5 mbar
Gas Connection - Rp - ½
2. Gas pipe sizing must be calculated in accordance with local or National codes taking into account all gas
appliances installed using the common gas supply. For assistance contact the distributor.
3. Installation pipes should be fitted in accordance with National and Local Regulations. Pipes of a smaller size
than the appliance connection (Rp - ½) should not be used and the pipework must be designed to achieve a
gas supply pressure between the maximum and minimum valves stated above, measured at the appliance inlet
pressure test point.
A field installed manual shut-off valve must be installed in the gas piping to each brooder. This will allow service
of individual heaters without having to shut down the entire gas supply system.
It is essential to provide a flexible metallic hose, which must conform to National or Local
Regulations, to connect the appliance to the gas supply. Minimum size to be ½" (12.7mm) bore.
Fig. 5
4. LPG - G30/G31 at 29/37mbar supply pressure (appliance cat 3+).
Maximum supply pressure (Pmax) G30 - 35mbar
G31 - 45mbar
Minimum supply pressure (Pmin) G30 - 20mbar
G31 - 25mbar
Note:- for appliances cat 3+, the governor is not operational.
Gas connection: Rp - ½.
5. The appliance should be connected to a permanent piped supply of LPG, with pipes of adequate size to
achieve a gas supply pressure between the maximum and minimum valves stated above, measured at the
appliance inlet pressure test point.
6. The complete installation MUST be tested for soundness in accordance with National or Local Regulations.
13

Our Address
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Settle, North Yorkshire, BD24 9RH
Get In Touch
Call: 0845 6880112
Email: [email protected]
10) ELECTRICAL SUPPLY
1. Direct Burner Spark Ignition: the electrical wiring to the appliance must be installed in accordance with the latest
or current National Regulations and any Local Regulations which apply.
Electrical supply 230v ~ 50Hz 25W
Current rating 0.11A
Fuse externally 3A
2. Twin core and earth PVC covered flexible supply cable (0.5mm2- to National or Local standard specification)
must be used, with connections made as shown in Fig. 6.
3. SRP30 Hi/Lo models only.
Three core and earth PVC covered flexible supply cable (0.5mm2- to National or Local standard specification)
must be used, with connections made as shown in Fig. 7.
708A, 716A, 722A, 731A
Fig. 6
14
THERMOSTAT SWITCHTHERMOSTAT SWITCH
HEATER 1 HEATER 2
GREEN/YELLOW
BLUE
BROWN
7
N
L
7 7
SINGLE HEATER PER THERMOSTAT
7
L
N
HEATER 1
7
MULTIPLE HEATERS PER THERMOSTAT
SWITCH
BROWN
BLUE
GREEN/YELLOW
HEATER 2
7
SWITCH
THERMOSTAT

Our Address
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Get In Touch
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Email: [email protected]
731AHILO
Fig. 7 Notes: -
The method of connection to the electrical supply must facilitate complete isolation and should preferably be via
a fused double pole isolator having a constant separation of at least 3mm in all poles and supplying the
appliance ONLY.
Alternatively connections may be made via a 3 pin plug and unswitched socket; both complying with the
requirements of National or Local Regulations. Neither thermostat nor switches are supplied as standard
equipment.
N.B. In the event of an electrical fault after installation of the appliance, preliminary system checks are required
to be carried out, i.e. earth continuity, polarity and resistance to earth.
4. Internal Wiring Diagram (S.I.T. Controls) –ON/OFF
Fig. 8
15
THERMOSTAT 1 SWITCHTHERMOSTAT 1 SWITCH
HEATER 1 HEATER 2
GREEN/YELLOW
BLUE
BROWN
7
N
L1
7 7
SINGLE HEATER PER THERMOSTAT
7
L1
N
HEATER 1
7
MULTIPLE HEATERS PER THERMOSTAT
SWITCH
BROWN
BLUE
GREEN/YELLOW
HEATER 2
7
SWITCH
THERMOSTAT 1
L2
THERMOSTAT 2 SWITCH
3
THERMOSTAT 2 SWITCH
3
BLACK
THERMOSTAT 2
L2
SWITCH
3
BLACK
3

Our Address
Puravent, Adremit Limited, Unit 5a, Commercial Yard,
Settle, North Yorkshire, BD24 9RH
Get In Touch
Call: 0845 6880112
Email: [email protected]
5. Internal Wiring Diagram (S.I.T. Controls) –Hi/LO
Fig. 9
11) VENTILATION
The installation room should have a volume of at least 10m3/kW of installed nominal heat input of the radiant
heater.
The ventilation requirements and calculation methods for unflued appliances are set out in the European
Standards EN 13410:2001 and must be applied. The following is guidance to the standard:
Ventilation may be achieved by any of the three following different means:
a) thermal evacuation of the products of combustion/air mixture
b) mechanical evacuation of the products of combustion/air mixture
c) natural air change
16

Our Address
Puravent, Adremit Limited, Unit 5a, Commercial Yard,
Settle, North Yorkshire, BD24 9RH
Get In Touch
Call: 0845 6880112
Email: [email protected]
A. Ventilation by Thermal Evacuation
Ventilation by thermal evacuation is sufficient if 10m3/kW of operating heat input are ventilated out of the
installation room.
The air/products of combustion mixture must be evacuated above the radiant heaters, if possible near the ridge,
by means of exhaust mixture opening(s), (vents).
Where the exhaust mixture opening(s) can be closed, it shall only possible to operate the radiant heaters when
they are open.
The maximum horizontal distance between a radiant heater and a vent opening shall be:
6 (six) times the vent height in the case of wall openings
3 (three) times the vent height in the case of roof openings
B. Ventilation by Mechanical Evacuation
Ventilation by mechanical evacuation is sufficient if 10m3/h of exhaust air per kW of operating heat input are
ventilated out of the installation room.
The air/products of combustion mixture must be evacuated above the radiant heaters using fan(s).
It shall only be possible to operate the radiant heaters whilst the exhaust airflow is proven.
The maximum horizontal distance between a radiant heater and a fan shall be:
6 (six) times the fan mounting height in the case of wall openings
3 (three) times the fan mounting height in the case of roof openings
Total minimum proven ventilation airflow in m/h will be:
Total installed kW input X 10
Note: Mechanical exhaust air openings must be positioned such that the burner stability of the nearest
appliance is unaffected.
C. Ventilation by Natural Air Change
Gas-fired radiant heaters may be operated without any special exhaust system if the exhaust gases are
discharged to the outside atmosphere by a sufficient natural air change in the installation room.
Furthermore, no provision for thermal or mechanical ventilation is required in the following particular cases:
Buildings with natural air change greater than 1.5 volumes per hour
Buildings with a density of operating heat input not greater than 5W/m
D. Air Supply
Air supply openings are required to admit air and shall be located below the radiant heaters.
The total area of the unobstructed cross-sections of all the air supply openings shall not be smaller than the
total area of the unobstructed cross-sections of all the exhaust openings.
Slits and gaps of fixed cross-section can also be used as air supply openings.
Where the air supply openings can be closed, it shall only be possible to operate the radiant heaters when they
are open.
17

Our Address
Puravent, Adremit Limited, Unit 5a, Commercial Yard,
Settle, North Yorkshire, BD24 9RH
Get In Touch
Call: 0845 6880112
Email: [email protected]
12) ASSEMBLY
A. 708A, 716A, 722A, 731A (Direct Burner Spark Ignition)
1. The appliance should be raised and suspended from chains or drop rods or from brackets fixed to vertical
surfaces which have been previously installed in accordance with section 8a. - Suspension.
2. Connect the gas supply in accordance with Section 9. - Gas Supply, of these Installation Instructions.
3. Using twin core and earth flexible supply cable, as specified in Section 10, suitable for 230V ~ 50Hz 25W
supply, connect to the terminal block (fitted to inside junction box, attached to the Control Valve) as follows:-
Brown - to terminal marked 1
Blue - to terminal marked 2
Green/Yellow - to terminal marked 7 (earth)
External fuse required - 3 amp.
See section 10. for electrical supply requirements.
B. 731AHILO (Direct Burner Spark Ignition)
1. The appliance should be raised and suspended from chains or drop rods, or from brackets fixed to vertical
surfaces that have been previously installed in accordance with Section 8a. - Suspension.
2. Connect the gas supply in accordance with Section 9. - Gas supply, of these Installation Instructions.
3. Using three core and earth flexible supply cable as specified in Section 10., suitable for 230v ~ 50Hz 25W
supply, connect to the terminal block (fitted to inside junction box, attached to the Control valve) as follows:-
Brown - to terminal marked 1
Blue - to terminal marked 2
Black - to terminal marked 3
Green/Yellow - to terminal marked 7 (earth)
External fuse required - 3 amp
See Section 10. for electrical supply requirements.
18

Our Address
Puravent, Adremit Limited, Unit 5a, Commercial Yard,
Settle, North Yorkshire, BD24 9RH
Get In Touch
Call: 0845 6880112
Email: [email protected]
C. 708A, 716A, 722A (Standing Pilot Ignition)
1. The appliance should be raised and suspended from chains or drop rods, or from brackets fixed to a vertical
surface which have been previously installed in accordance with Section 8a. Suspension.
2. Connect the gas supply in accordance with Section 9. - Gas Supply, of these Installation Instructions.
3. IMPORTANT: THIS APPLIANCE MUST NOT BE CONNECTED TO ANY ELECTRICAL SUPPLY.
The appliance may be controlled via a 2 pole switch and/or a thermostat, connected by 2 core flexible supply
cable (suitable for millivolt electrical supply) to the appliance control valve connections marked TH
(see Fig. 10).
Fig. 10
13) COMMISSIONING
It is essential that all new pipework installations are purged and tested for sounding using a suitable leak
detection fluid prior to attempting to ignite any appliance. This work should be carried out in accordance with
National or Local Regulations.
N.B. DO NOT TEST FOR SOUNDNESS BY USE OF NAKED FLAMES.
Direct Burner Spark Ignition Models:
A.Ignition
1. Turn on the gas supply to the appliance.
2. Switch on the electrical supply to the appliance.
19
ROOM
THERMOSTAT
TP = MILLIVOLT GENERATOR
TH = SWITCH / THERMOSTAT
AUTOMATIC SHUT-OFF VALVE
POWERED BY MILLIVOLT GENERATOR