FOR YOUR SAFETY
If you smell gas:
1. Open windows.
2. DO NOT try to light any appliance.
3. DO NOT use electrical switches.
4. DO NOT use any telephone in
your building.
5. Extinguish any open flame.
6. Leave the building.
7. Immediately call your local gas
supplier after leaving the building.
Follow the gas supplier’s
instructions.
8. If you cannot reach your gas
supplier, call the Fire Department.
®
Blackheat
Vacuum Assisted
Linear, Double Linear,
WARNING
Fire Hazard
Keep all flammable objects, liquids and
vapors the minimum required clearances to combustibles away from
heater.
Some objects will catch fire or explode
when placed close to heater.
Failure to follow these instructions can
result in death, injury or property
damage.
U-Tube, and Multi-Burner
Gas Fired Heating Systems
Installation, Operation &
Service Manual
BH15UT
BH20UT
BH25UT/EF
BH30UT/EF
BH35UT/EF
BH40UT/EF
BH45UT/EF
BH50UT/EF
BH15ST
BH20ST
BH25ST/EF
BH30ST/EF
BH35ST/EF
BH40ST/EF
BH45ST/EF
BH50ST/EF
BH55ST
BH30DL
BH40DL
BH50DL/EF
BH60DL/EF
BH70DL/EF
WARNING
Improper installation, adjustment, alteration, service
or maintenance can result in death, injury or
property damage. Read the installation, operation
and service manual thoroughly before installing or
servicing this equipment.
Installation must be done by a registered installer/
contractor qualified in the installation and service
of gas-fired heating equipment or your gas supplier.
© 2012 Roberts-Gordon LLC
Installer
Please take the time to read and understand
these instructions prior to any installation.
Installer must give a copy of this manual to the owner.
Owner
Keep this manual in a safe place in order to provide
your serviceman with necessary information.
Roberts-Gordon Europe Limited
Unit A, Kings Hill Business Park
Darlaston Road, Wednesbury
West Midlands WS10 7SH UK
Telephone: +44(0)121 506 7700
Fax: +44(0)121 506 7701
Service Telephone: +44(0)121 506 7709
Service Fax: +44(0)121 506 7702
E-mail: uksales@rg-inc.com
E-mail: export@rg-inc.com
www.rg-inc.com
170101UK Rev. P-1 08/12
TABLE OF CONTENTS
© 2010
Roberts-Gordon LLC
All rights reserved. No part of this work covered by the copyrights herein may be reproduced
or copied in any form or by any means - graphic, electronic, or mechanical, including
photocopying, recording, taping or information storage and retrieval systems - without the
written permission of Roberts-Gordon LLC.
SECTION 1: Heater Safety ............................................2
1.1 Manpower Requirements ....................................2
1.2 Safety Labels and Their Placement ....................2
SECTION 2: Installer Responsibility............................4
2.1 Low Level User Instructions................................4
2.2 Corrosive Chemicals...........................................4
2.3 National Standards and Applicable Codes .........4
SECTION 3: Clearances to Combustibles...................5
3.1 Required Clearances to Combustibles ...............5
3.2 Clearance Data - Linear and Double Linear .......6
3.3 Clearance Data -U Tube .....................................8
SECTION 4: Major Component Descriptions............ 10
SECTION 5: General Suspension Details ................. 11
SECTION 6: Linear & Double Linear Heater
Installation.............................................. 13
6.1 Linear Standard Parts List ................................13
6.2 Double Linear Standard Parts List....................16
6.3 Burner Tube Installation ...................................19
6.4 Coupling and Tube Assembly...........................19
6.5 Tube Clamp Package Installation .....................21
6.6 Reflector Installation .........................................22
6.7 Double Linear Tee Installation
(for double linear heaters only) .........................24
SECTION 7: U-Tube Heater Installation.....................25
7. 1 U - Tube Standard Parts List ...............................25
7.2 U-Tube Hanger Placement ...............................29
7.3 Burner Tube and Fan Tube Installation ...........29
7.4 U-Tube Support Bracket Assembly
Installation ........................................................30
7.5 Coupling and Tube Assembly...........................31
7.6 Tube Installation ...............................................32
7.7 U-Tube Installation ...........................................32
7.8 Reflector Installation .........................................33
SECTION 8: Multiburner Configuration &
Installation .............................................35
8.1 Initial Assembly.................................................35
SECTION 9: Burner & Fan Installation ......................37
9.1 Burner Installation.............................................37
9.2 Fan Assembly...................................................37
9.3 Linear & U-Tube Fan Installation ......................38
9.4 Double Linear Fan Installation ..........................38
9.5 Multiburner 83/90 BWLG Fan Assembly
(Horizontal and Vertical Outlets) ......................39
9.6 Condensate Drain Assembly............................40
SECTION 10: Optional Heater Accessories ..............41
10.1 Reflector Side Extension Installation...............42
10.2 U-Tube Cover Installation................................43
10.3 Decorative Grille Installation ...........................44
10.4 Protective Grille Installation.............................45
10.5 Sports Hall Guard Installation.........................46
10.6 Undershield Installation...................................47
10.7 Wall Mounting .................................................48
SECTION 11: Venting..................................................50
11.1 General Venting Requirements .......................50
11.2 Ventilation Requirements................................. 50
11.3 Outside Combustion Air Supply....................... 51
11.4 Common Duct .................................................52
SECTION 12: Gas Piping ............................................53
SECTION 13: Wiring....................................................55
13.1 Typical External Wiring Diagram
(Linear or U-Tube)...........................................55
13.2 Typical External Wiring Diagram
(Double Linear Option 1) ................................55
13.3 Typical External Wiring Diagram
(Double Linear Option 2) ................................56
13.4 Typical External Wiring Diagram
(Multiburner) ...................................................56
13.5 Internal Wiring Diagram .................................57
SECTION 14: Operation..............................................58
14.1 Heater Lockout Indication (Optional) .............. 58
14.2 Testing ............................................................59
14.3 Commissioning (Multiburner)..........................59
14.4 System Checks ...............................................59
14.5 User Instructions.............................................59
14.6 ECA Approved Systems (Multiburner only)..... 60
SECTION 15: Servicing Instructions ......................... 61
15.1 Annual Procedure ...........................................61
15.2 Component Removal...................................... 61
15.3 Maintenance Checklist.................................... 62
SECTION 16: Troubleshooting...................................64
16.1 Troubleshooting Flow Chart
(Linear, Double Linear and U-Tube)................ 65
16.2 Troubleshooting Flow Chart (Multiburner) ......67
16.3 Manifold Gas Pressure Setting .......................69
SECTION 17: Replacement Parts............................... 70
SECTION 18: Specifications....................................... 72
18.1 Material Specifications ....................................72
18.2 Heater Specifications......................................72
18.3 Venting Specifications.....................................72
18.4 Suspension Specifications..............................72
18.5 Controls Specifications ...................................72
18.6 Linear Heater.................................................. 73
18.7 Double Linear Heater......................................73
18.8 U-Tube Heater ................................................ 73
18.9 Burner Specifications...................................... 74
Printed in U.K.
TABLE OF FIGURES
Figure 1: Side and Back Panel Label Placement............2
Figure 2: Top Panel Label Placement.............................3
Figure 3: Linear & Double Linear, Horizontal Mounts .....6
Figure 4: Linear & Double Linear, One Side Reflector....6
Figure 5: Linear & Double Linear, Two Side Reflectors ..6
Figure 6: Linear & Double Linear, 45° Mount..................6
Figure 7: Linear & Double Linear, 2 Foot Deco Grille .....7
Figure 8: Linear & Double Linear, Protective Grille.........7
Figure 9: Undershield .....................................................7
Figure 10: Linear & Double Linear, Venting....................7
Figure 11: U-Tube, Horizontal Mount..............................8
Figure 12: U-Tube, One Side Reflector...........................8
Figure 13: U-Tube, Two Side Reflectors.........................8
Figure 14: U-Tube, Full 45° Mount..................................8
Figure 15: U-Tube, Opposite 45° Tilt ..............................9
Figure 16: U-Tube, Protective Grille................................9
Figure 17: U-Tube, Venting.............................................9
Figure 18: Critical Hanger Placement ...........................12
Figure 19: Linear General Assembly Overview.............14
Figure 20: Linear Layout Overview ...............................15
Figure 21: Double Linear General Assembly
Overview ......................................................17
Figure 22: Double Linear Layout Overview...................18
Figure 23: U-Tube Assembly Overview ........................27
Figure 24: U-Tube Layout Overview .............................28
Figure 25: Multiburner Damper Flange Installation.......35
Figure 26: Typical Manifold Layout (Linear and
U-Tube Configuration)..................................36
Figure 27: U-Tube (Horizontal) .....................................48
Figure 28: U-Tube (Angle Mounted) .............................49
Figure 29: Linear...........................................................49
Figure 30: Individual Flue Connection Detail ................51
Figure 31: Flue Connection Dimensions.......................51
Figure 32: Fresh Air Intake Spigot ................................52
Figure 33: Air Supply with Flue Configurations.............52
Figure 34: Gas Connection with Stainless Steel Flex
Connector.....................................................54
Figure 35: Sequence of Operation Chart ......................58
Figure 36: Burner Cup Position.....................................61
Figure 37: Linear and U-Tube Specifications................74
ROBERTS GORDON® appliances have been tested and CE certified as complying with the essential
requirements of the Gas Appliance Directive, the Low Voltage Directive, the Electromagnetic
Compatibility Directive and the Machinery Directive for use on natural gas and LPG when installed,
commissioned and maintained in accordance with these instructions.
These instructions refer to appliances designed to operate in the European Union.
Appliances designed for other countries (Non-European Union) are available on request.
This appliance must be installed in accordance with the local and national codes in force and used
only in a sufficiently ventilated space, as specified in these instructions.
Before installation, check that the local gas distribution systems, nature of gas and pressure, and
adjustment of the appliance are compatible.
Product Approval
1 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
Logo Label
Fan/Burner Label
Side Panel
Rating Plate Label
Back Panel
Description Part Number
Logo Label 91033200
Fan/Burner Label 91033300
Rating Plate Label 91031300
SECTION 1: HEATER SAFETY
Yo ur Safety is Important to Us!
This symbol is used throughout the manual
to notify you of possible fire, electrical or burn
hazards. Please pay special attention when
reading and following the warnings in these
sections.
Installation, service and annual inspection of heater must
be done by a registered installer/contractor qualified in
the installation and service of gas-fired heating
equipment.
Read this manual carefully before installation, operation
or service of this equipment.
This heater is designed for heating nonresidential indoor
spaces. Do not install in residential spaces. These
instructions, the layout drawing, local codes and
ordinances, and applicable standards that apply to gas
piping, electrical wiring, venting, etc., must be thoroughly
understood before proceeding with the installation.
Protective gear is to be worn during installation, operation
and service. Thin sheet metal parts, such as the reflector
portion of the heater and the various venting
Figure 1: Side and Back Panel Label Placement
components, have sharp edges. To prevent injury, the use
of work gloves is recommended. The use of gloves will
also prevent the transfer of body oils from the hands to
the surface of the reflector.
Before installation, check that the local distribution
conditions, nature of gas and pressure, and adjustment of
the appliance are compatible.
For additional copies of the Installation, Operation
andService Manual, please contact Roberts-Gordon LLC.
1.1 Manpower Requirements
To p r e vent personal injury and damage to the heater, two
persons will be required for installation.
1.2 Safety Labels and Their Placement
Product safety signs or labels should be replaced by the
product user when they are no longer legible. Contact
Roberts-Gordon for obtaining replacement signs or
labels. See Page 2, Figure 1 through Page 3, Figure 2.
2 of 74
Figure 2: Top Panel Label Placement
Description Part Number
Gas Connection Label 91018126
Internal Wiring Label 91031401
SECTION 1: HEATER SAFETY
Top Panel
Top Panel - Inside Door
Gas Connection Label
Internal Wiring Label
3 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
CAUTION
Product Damage Hazard
Do not use heater in area containing
corrosive chemicals.
Refer to appropriate Material Safety Data
Sheets (MSDS).
Failure to follow these instructions can result
in product damage.
SECTION 2: INSTALLER RESPONSIBILITY
• To install the heater, as well as the gas and electrical
supplies, in accordance with applicable specifications
and codes. Roberts-Gordon recommends the
installer contact a local Building Inspector or Fire
Marshal for guidance.
•To use the information given in a layout drawing and
in the manual together with the cited codes and
regulations to perform the installation.
• To install the heater in accordance with the clearances to combustibles.
•To furnish all needed materials not furnished as
standard equipment.
• To plan location of supports.
• To provide access to burners for servicing on all
sides, for burner removal.
• To provide the owner with a copy of this installation,
operation and service manual.
• To never use heater as support for a ladder or other
access equipment and never hang or suspend anything from heater.
• To ensure there is adequate air circulation around the
heater and to supply air for combustion,
and distribution in accordance with local codes.
• To safely and adequately install heater using materials with a minimal working load of 33 kg.
• To ensure the heater is placed in an approved
application.
ventilation
2.1 Low Level User Instructions
In all situations, clearances to combustibles must be
maintained. Signs should be posted in storage areas to
specify the maximum stacking height of items placed
below heater to maintain required clearances to
combustibles. Minimum clearances must be maintained
from vehicles parked below the heater. Caution should be
used when running the system near combustible
materials such as wood, paper, rubber, etc. Consideration
should be given to partitions, storage racks, hoists,
building construction, etc.
A laminated wall tag is available for the heater as a
permanent reminder of the safety instructions and the
importance of the required clearances to combustibles.
Please contact Roberts-Gordon or your ROBERTS
GORDON
Affix the tag by peeling off the backing of the adhesive
strips on the rear surface and position the tag on a wall
near the heater (e.g. thermostat or ROBERTS GORDON
Controller).
A copy of the wall tag (P/N 91037912) is illustrated on the
back cover. This copy of the wall tag can be affixed on the
wall near the heater. Know your model number and
installed configuration. Model number and installed
configuration are found on the burner and in the
Installation, Operation and Service Manual. Write the
largest clearance dimensions with permanent ink
according to your model number and configuration in the
open spaces on the tag.
®
independent distributor to obtain the wall tag.
4 of 74
2.2 Corrosive Chemicals
Roberts-Gordon cannot be responsible for ensuring that
all appropriate safety measures are undertaken prior to
installation; this is entirely the responsibility of the
installer. It is essential that the contractor, the sub-
contractor, or the owner identifies the presence of
combustible materials, corrosive chemicals or
halogenated hydrocarbons* anywhere in the premises.
* Halogenated Hydrocarbons are a family of chemical
compounds characterized by the presence of halogen
elements (fluorine, chlorine, bromine, etc.). These compounds are frequently used in refrigerants, cleaning
agents, solvents, etc. If these compounds enter the air
supply of the burner, the lifespan of the heater components will be greatly reduced. An outside air supply must
be provided to the burners whenever the presence of
these compounds is suspected. Warranty will be invalid
if the heater is exposed to halogenated hydrocarbons.
2.3 National Standards and Applicable Codes
All appliances must be installed in accordance with the
latest revision of the applicable standards and national
codes. This refers also to the electric, gas and venting
installation. Note: Additional standards for installations in
public garages, aircraft hangars, etc. may be applicable.
®
SECTION 3: CLEARANCES TO COMBUSTIBLES
WARNING
Fire Hazard
Keep all flammable objects, liquids and
vapors the minimum required clearances to
combustibles away from heater.
Some objects will catch fire or explode when
placed close to heater.
Failure to follow these instructions can result
in death, injury or property damage.
SECTION 3: CLEARANCES TO COMBUSTIBLES
3.1 Required Clearances to Combustibles
Clearances are the required distances that combustible
objects must be away from the heater to prevent fire
hazards. Caution should be used when running the
system near combustibles. Combustibles are materials,
which may catch on fire and include common items such
as wood, paper, rubber, fabric, etc. Maintain clearances
to combustibles at all times for safety.
Clearances for all heater models are located on Page 6,
Figure 3 through Page 9, Figure 17 in this manual. Check
the clearances on each burner for the model heater being
installed to make sure the product is suitable for your
application and the clearances are maintained. Read and
follow the safety guidelines below:
• Keep petrol or other combustible materials including
flammable objects, liquids, dust or vapours away from
this heater or any other appliance.
• The stated clearances to combustibles represents a
surface temperature of 32°C (90° F) above room tem-
perature. Building materials w
(such as plastics, vinyl siding, canvas, tri-ply, etc)
may be subject to degradation at lower temperatures.
It is the installer’s responsibility to assure that adjacent materials are protected from degradation.
• Maintain clearances from heat sensitive equipment
and workstations.
• Maintain clearances from vehicles parked below the
heater.
• Maintain clearances from swinging and overhead
doors, overhead cranes, vehicle lifts, partitions, stor-
age racks, hoists, building construction, etc.
• In locations used for the storage of combustible materials, signs must be posted to specify the
maximum permissible stacking height to maintain
required clearances from the heater to the combusti-
bles. Signs must be posted adjacent to the heater
thermostat. In the absence of a thermostat, signs
must be posted in a conspicuous location.
ith a low heat tolerance
• Consult local Building Inspector, Fire Insurance
Carrier or other authorities for approval of proposed
installation when there is a possibility of exposure to
combustible airborne materials or vapours.
• Hang heater in accordance to the minimum
suspension requirements on Page 73, Section 18.6
through Section 18.8.
• If the radiant tubes must pass through the building
structure, be sure that adequate sleeving and fire
stop is installed to prevent scorching and/or fire
hazard.
5 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
A
C
D
B
A
C
D
B
A
C
D
B
A
C
D
B
3.2 Clearance Data - Linear and Double Linear
NOTE: 1. All dimensions are from the surfaces of all tubes, couplings, tees, elbows and crosses.
2. Clearances B, C and D can be reduced by 50% after 7500 mm of tubing downstream
from the burner.
3. All measurements are in millimeters.
FIGURE 3: LINEAR & DOUBLE LINEAR, HORIZONTAL MOUNTS
Model
A 150 150 150 150 150 150 200 200
B 890 970 970 1020 1170 1220 1280 1330
C 1570 1650 1650 1780 1930 1970 2010 2080
D 890 970 970 1020 1170 1220 1280 1330
BH15ST
BH30DL
BH20ST
BH40DL
BH25ST/EF
BH50DL/EF
BH30ST/EF
BH60DL/EF
FIGURE 4: LINEAR & DOUBLE LINEAR, ONE SIDE REFLECTOR
Model
A 150 150 150 150 150 150 200 200
B 230 230 230 230 230 230 230 230
C 1580 1760 1760 1930 2090 2130 2160 2240
D 1200 1380 1380 1500 1660 1710 1760 1860
BH15ST
BH30DL
BH20ST
BH40DL
BH25ST/EF
BH50DL/EF
BH30ST/EF
BH60DL/EF
FIGURE 5: LINEAR & DOUBLE LINEAR, TWO SIDE REFLECTORS
BH35ST/EF
BH70DL/EF
BH35ST/EF
BH70DL/EF
BH40ST/EF
BH40ST/EF
BH45ST/EF
BH45ST/EF
BH50ST/EF
BH50ST/EF
& BH55ST*
& BH55ST*
Model
A 150 150 150 150 150 150 200 200
B 590 640 640 690 820 860 890 1020
C 1660 1810 1810 1960 2110 2160 2210 2320
D 590 640 640 690 820 860 890 1020
BH15ST
BH30DL
FIGURE 6: LINEAR & DOUBLE LINEAR, 45° MOUNT
* BH55ST only available in multiburner.
Model
A 200 200 200 250 250 275 300 300
B 200 200 200 200 200 200 200 200
C 1500 1660 1660 1860 1960 2030 2110 2160
D 1370 1520 1520 1630 1750 1820 1880 2000
BH15ST
BH30DL
BH20ST
BH40DL
BH20ST
BH40DL
BH25ST/EF
BH50DL/EF
BH25ST/EF
BH50DL/EF
BH30ST/EF
BH60DL/EF
BH30ST/EF
BH60DL/EF
BH35ST/EF
BH70DL/EF
BH35ST/EF
BH70DL/EF
BH40ST/EF
BH40ST/EF
BH45ST/EF
BH45ST/EF
BH50ST/EF
& BH55ST*
BH50ST/EF
& BH55ST*
6 of 74
NOTE: 1. All dimensions are from the surfaces of all tubes, couplings, tees, elbows and crosses.
A
C
D
B
A
C
D
B
A
C
D
B
Radiant tubes
Fan
Unvented
Vented
E
F
2. Clearances B, C and D can be reduced by 50% after 7500 mm of tubing downstream
from the burner.
3. All measurements are in millimeters.
FIGURE 7: LINEAR & DOUBLE LINEAR, 2 FOOT DECO GRILLE
SECTION 3: CLEARANCES TO COMBUSTIBLES
Model
BH15ST
BH30DL
BH20ST
BH40DL
BH25ST/EF
BH50DL/EF
BH30ST/EF
A 150 150 150 150 150 150 200 200
B 890 970 970 1020 1170 1220 1280 1330
C 1570 1650 1650 1780 1930 1970 2010 2080
D 890 970 970 1020 1170 1220 1280 1330
FIGURE 8: LINEAR & DOUBLE LINEAR, PROTECTIVE GRILLE
Model
A 150 150 150 150 150 150 200 200
B 890 970 970 1020 1170 1220 1280 1330
C 1570 1650 1650 1780 1930 1970 2010 2080
D 890 970 970 1020 1170 1220 1280 1330
BH15ST
BH30DL
BH20ST
BH40DL
BH25ST/EF
BH50DL/EF
BH30ST/EF
FIGURE 9: UNDERSHIELD **
BH60DL/EF
BH60DL/EF
BH35ST/EF
BH70DL/EF
BH35ST/EF
BH70DL/EF
BH40ST/EF
BH40ST/EF
BH45ST/EF
BH45ST/EF
BH50ST/EF
BH50ST/EF
& BH55ST*
& BH55ST*
Model
BH15ST
BH30DL
A 150 150 150 150 150 150 - -
B 990 1020 1270 1270 1370 1400 - -
C 840 965 1120 1120 1220 1270 - -
D 990 1020 1270 1270 1370 1400 - -
** When installed in the first 6 m - Not for use on EF models.
FIGURE 10: LINEAR & DOUBLE LINEAR, VENTING
* BH55ST only available in multiburner.
Model
E 1000 1000 1000 1000 1000 1000 1000 1000
F 500 500 500 500 500 500 500 500
BH15ST
BH30DL
BH20ST
BH40DL
BH20ST
BH40DL
BH25ST/EF
BH25ST/EF
BH50DL/EF
BH50DL/EF
BH30ST/EF
BH30ST/EF
BH60DL/EF
BH60DL/EF
BH35ST/EF
BH35ST/EF
BH70DL/EF
BH70DL/EF
BH40ST/EF
BH40ST/EF
BH45ST/EF
BH45ST/EF
BH50ST/EF
& BH55ST*
BH50ST/EF
& BH55ST*
7 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
A
C
D
B
A
C
D
B
A
C
D
B
B
C
D
A
3.3 Clearance Data -U Tube
NOTE: 1. All dimensions are from the surfaces of all tubes, couplings, tees, elbows and crosses.
2. Clearances B, C and D can be reduced by 50% after 7500 mm of tubing downstream
from the burner.
3. All measurements are in millimeters.
4. Add 60 mm clearance to uncovered U-tube.
FIGURE 11: U-TUBE, HORIZONTAL MOUNT
Model
BH15UT
BH20UT
A 150 150 150 150 150 150 200 200
B 890 970 970 1020 1170 1220 1270 1380
C 1580 1730 1730 1910 1980 2050 2110 2210
D 760 940 940 1000 1090 1150 1200 1300
FIGURE 12: U-TUBE, ONE SIDE REFLECTOR
Model
A 150 150 150 150 150 150 200 200
B 230 230 230 230 230 230 230 230
C 1580 1760 1760 1930 2090 2130 2160 2240
D 1200 1380 1380 1500 1660 1710 1760 1860
BH15UT
BH20UT
FIGURE 13: U-TUBE, TWO SIDE REFLECTORS
BH25UT/EF
BH25UT/EF
BH30UT/EF
BH30UT/EF
BH35UT/EF
BH35UT/EF
BH40UT/EF
BH40UT/EF
BH45UT/EF
BH45UT/EF
BH50UT/EF
BH50UT/EF
Model
A 150 150 150 150 150 150 200 200
B 590 640 640 690 820 860 890 1020
C 1660 1810 1810 1960 2110 2160 2210 2320
D 590 640 640 690 820 860 890 1020
FIGURE 14: U-TUBE, FULL 45° MOUNT
Model
A 200 200 200 200 200 200 200 200
B 200 200 200 200 200 200 200 200
C 1500 1650 1650 1860 1960 2040 2110 2160
D 1070 1170 1170 1320 1550 1620 1680 1780
BH15UT
BH15UT
BH20UT
BH20UT
BH25UT/EF
BH25UT/EF
BH30UT/EF
BH30UT/EF
BH35UT/EF
BH35UT/EF
BH40UT/EF
BH40UT/EF
BH45UT/EF
BH45UT/EF
BH50UT/EF
BH50UT/EF
8 of 74
NOTE: 1. All dimensions are from the surfaces of all tubes, couplings, tees, elbows and crosses.
A
C
D
B
A
C
D
B
Radiant tubes
Fan
Unvented
Vented
E
F
2. Clearances B, C and D can be reduced by 50% after 7500 mm of tubing downstream
from the burner.
3. All measurements are in millimeters.
4. Add 60 mm clearance to uncovered U-tube.
FIGURE 15: U-TUBE, OPPOSITE 45° TILT
SECTION 3: CLEARANCES TO COMBUSTIBLES
Model
BH15UT
A 200 200 200 250 250 275 300 300
B 1370 1530 1530 1630 1780 1830 1880 1930
C 1500 1650 1650 1860 1960 2040 2110 2160
D 560 560 560 560 560 560 560 560
FIGURE 16: U-TUBE, PROTECTIVE GRILLE
Model
A 150 150 150 150 150 150 200 200
B 890 970 970 1020 1170 1220 1270 1380
C 1580 1730 1730 1910 1980 2050 2110 2210
D 760 940 940 1000 1090 1150 1200 1300
BH15UT
FIGURE 17: U-TUBE, VENTING
BH20UT
BH20UT
BH25UT/EF
BH25UT/EF
BH30UT/EF
BH30UT/EF
BH35UT/EF
BH35UT/EF
BH40UT/EF
BH40UT/EF
BH45UT/EF
BH45UT/EF
BH50UT/EF
BH50UT/EF
Model
BH15UT
BH20UT
BH25UT/EF
BH30UT/EF
BH35UT/EF
BH40UT/EF
BH45UT/EF
BH50UT/EF
E 1000 1000 1000 1000 1000 1000 1000 1000
F 500 500 500 500 500 500 500 500
9 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
Burner (shown with Tube
Gasket)
Must be installed with the
flame observation window
facing down.
Reflector
(Aluminium or
Stainless Steel)
Alternate overlap as
shown on overview.
Minimum overlap is
160 mm.
Tube and Reflector Hanger
with Clamp Package
Position this hanger no more
than 100 mm away from the
burner assembly.
Coupling Assembly
with Lock
Reflector End Cap
Punch out center section to
accommodate tube.
Fan Assembly (Includes Flange)
Fan Assembly is attached to the last
section of heat exchanger tubing
(Fan Tube).
Tube and Reflector Hanger
Suspend system from these
hangers.
Flex Gas Line
Tube
Heat treated aluminised tube
supplied in 3,000 mm lengths.
Burner Tube
Supplied in 3,000 mm lengths.
Burner tube is always the first
tube after the burner.
Reflector Support Strap, Wire
Form & #8 x 3/4 (3.9 x 19mm)
Screw
Fan Tube with Internal Swirler
Supplied in 3,000 mm lengths. Fan
tube is always the last tube on the
heater where the fan is attached.
The swirler is welded to the inside
of the tube end.
Fan Flange Assembly
and Screws
U-Tube
Height
Adjuster
Bow
Shackle
Tee
Assembly
U-Tube
Support
Bracket
Damper Flange Assembly
For use on Multiburner Systems.
Spring
Hook
S-hook
SECTION 4: MAJOR COMPONENT DESCRIPTIONS
10 o f 74
SECTION 5: GENERAL SUSPENSION DETAILS
WARNING
Severe Injury Hazard
Secure burner to burner tube with bolts and
lockwashers.
Hang heater with materials with a minimum
working load of 75 lbs (33 kg).
Failure to follow these instructions can result
in death, injury or property damage.
WARNING
Cut/Pinch Hazard
Wear protective gear during installation,
operation and service.
Edges are sharp.
Failure to follow these instructions can result
in injury.
SECTION 5: GENERAL SUSPENSION DETAILS
To e n s ure your safety, and comply with the terms of the
warranty, all units must be installed in accordance with
these instructions.
The gas or the electrical supply lines must not be used to
support the heater.
Do not locate the gas or electric supply lines directly over
the path of the flue products from the heater.
The heater must be installed in a location that it is readily
accessible for servicing.
The heater must be installed in accordance with
clearances to combustibles as indicated in this manual.
The minimum and maximum gas inlet pressures must be
maintained as indicated on the rating plate. Typical
installation configurations are shown on Page 12, Figure
18.
Note: Some modles will receive S-hooks (P/N 91907302)
or spring hooks (P/N 91903300), rather than bow
shackles.
11 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
* Allows for thermal expansion of system.
Hanger
Side View
Front View
Hanger
Bow Shackle
I-Beam
I-Beam
Beam
Clamp
Bow
Shackle
Anchor
Concrete
Beam
Locknut
Washer
Screw Hook
min. 10 mm
Washer
Wood
Beam
Turnbuckle
(not included)
600 mm
minimum*
300 mm
minimum*
10 mm
Rod
Typical Suspension Details
45° Angle
100 mm
Max.
Description Part Number
Burner Tube 03051100
Bow Shackle E0007576
Tube/Reflector Hanger 03090100
Figure 18: Critical Hanger Placement
12 of 74
SECTION 6: LINEAR & DOUBLE LINEAR HEATER INSTALLATION
WARNING
Cut/Pinch Hazard
Wear protective gear during installation,
operation and service.
Edges are sharp.
Failure to follow these instructions can result
in injury.
SECTION 6: LINEAR & DOUBLE LINEAR HEATER INSTALLATION
The figures in this section provide a general overview of
component placement in a BLACKHEAT
Double Linear system. The location of some components
such as supports and couplings is crucial for proper
installation. Assemble the heater components as shown
on Page 14, Figure 19.
For optional reflector configurations for linear heaters see
Page 6, Figure 3 through Page 7, Figure 10. Install
appropriate suspension hardware, beam clamps, chain or
rod at predetermined locations. Adjustments of chain
length will provide uniform pitch.
If any step is unclear, please contact Roberts-Gordon at
+44 (0)121 506 7700.
®
Linear and
6.1 Linear Standard Parts List
Part No. Description
072XXXXX Burner Assembly (Input and Fuel Varies) 111111111
BH15ST
BH20ST
BH25ST
BH25ST/EF
BH30ST
BH30ST/EF
BH35ST
BH35ST/EF
BH40ST
BH40ST/EF
BH45ST
BH45ST/EF
BH50ST
BH50ST/EF
BH55ST
07260001Fan Package XP 1 1111- ----
07260002Fan Package XP2 ----111--
07260003Fan Package XP 3 -------1-
03051100Burner Tube, 100 mm x 3048 mm 111111111
91409408Tube, 100 mm x 3048 mm -11222334
S5127WFan Tube, 100 mm x 3048 mm, with 3048 mm Swirler -11111111
S5134WFan Tube, 100 mm x 3048 mm, with 2134 mm Swirler 1--------
01329600 Standard Coupling Assembly 122333445
01329700Coupling Lock 122333445
02750303Reflector, Aluminium, 2439 mm 344666778
027503SSReflector, Stainless Steel, 2439 mm (Optional)* 344666778
02750800Reflector End Cap, Aluminium 222222222
027508SH Reflector End Cap, Stainless (Optional)* 222222222
03090100Tube and Reflector Hanger 344555667
01318901 Tube Clamp Package (including Nut, Washer & Bolt) 111111111
91908004Wire Form 233555667
94320812 Screw #8 x 3/4 (3.9mm x 19mm), (goes with 03050000) 4 6 6 10 10 10 12 12 14
03050000Reflector Support Strap 233555667
E0007576 Bow Shackle** 344555667
91107720 U-Clip Package (20 Pieces) 111111111
S7199K Damper Flange Assembly (For use on Multiburner Systems) 1 Per Heater
* PVC coating must be removed prior to installation.
** Some models may receive S-hooks (P/N 91907302) or
spring hooks (P/N 919003300), rather than bow
shackles.
13 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
Fan Tube
Reflector
Reflector End Cap
Reflector Support
Burner
Coupling
U-Clips
Burner Tube
Tube and Reflector Hanger
Tube Clamp Package
Internal Swirler
Fan Assembly
(For Single Heater)
Damper Assembly
(Required for Multiburner)
Weld
Spot
Figure 19: Linear General Assembly Overview
14 of 74
Figure 20: Linear Layout Overview
a = reflector width (not shown) - 365 mm
b = end cap to burner/fan - 50 mm
c = end cap to hanger - 50 mm
d = distance first hanger - 2290 mm
e = distance typical between hangers - 3050 mm
f = burner height - 366 mm
g = burner length - 291 mm
Burner
Reflector
Tube
Tube/Reflector
Hanger
Coupling
Assembly
Fan
Assembly
LEGEND
Damper
Assembly
BH20ST
BH25ST/EF
g
c
b
de
b
f
e
BH30ST/EF
BH35ST/EF
BH40ST/EF
g
c
b
de
b
f
e e
BH45ST/EF
BH50ST/EF
g
c
b
de
b
f
e e e
BH55ST
g
c
b
de
b
f
e e e e
g
c
b
de
b
BH15ST
f
SECTION 6: LINEAR & DOUBLE LINEAR HEATER INSTALLATION
Model
Reflector
Overlap
(approx.)
BH15ST BH20ST BH25ST/EF BH30ST/EF BH35ST/EF BH40ST/EF BH45ST/EF BH50ST/EF BH55ST
700 mm 250 mm 250 mm 530 mm 530 mm 530 mm 330 mm 330 mm 200 mm
15 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
6.2 Double Linear Standard Parts List
Part No. Description
072XXXXX Burner Assembly (Input and Fuel Varies) 2 2 2 2 2
07260002 Fan Package XP2 1 1 - - -
07260003 Fan Package XP 3 - - 1 1 1
03051100 Burner Tube, 100 mm x 3048 mm 2 2 2 2 2
91409408 Tube, 100 mm x 3048 mm - 2 2 4 4
S5127W Fan Tube, 100 mm x 3048 mm, with 3048 mm Swirler - 2 2 2 2
S5134W Fan Tube, 100 mm x 3048 mm, with 2134 mm Swirler 2 - - - -
E0009170 Tee, 100 mm x 100 mm x 100 mm 1 1 1 1 1
01329600 Standard Coupling Assembly 4 6 6 8 8
01329700 Coupling Lock 4 6 6 8 8
02750303 Reflector, Aluminium, 2439 mm 6 8 8 12 12
027503SS Reflector, Stainless Steel, 2439 mm (Optional)* 6 8 8 12 12
02750800 Reflector End Cap, Aluminium 4 4 4 4 4
027508SH Reflector End Cap, Stainless (Optional)* 4 4 4 4 4
BH30DL
BH40DL
BH50DL
BH50DL/EF
BH60DL
BH60DL/EF
BH70DL
BH70DL/EF
03090100 Tube and Reflector Hanger 6 8 8 10 10
01318901 Tube Clamp Package (including Nut, Washer & Bolt) 2 2 2 2 2
91908004 Wire Form 4 6 6 10 10
03050000 Reflector Support Strap 4 6 6 10 10
E0007576 Bow Shackle** 6 8 8 10 10
91107720 U-Clip Package (20 Pieces) 2 2 2 2 2
E0007582 Height Adjuster 6 8 8 10 10
94320812 Screw #8 x 3/4 (3.9mm x 19mm), (goes with 03050000) 8 12 12 20 20
* PVC coating must be removed prior to installation.
**Some models may receive S-hooks (P/N 91907302) or
spring hooks (P/N 91903300), rather than bow shackles
16 of 74
Figure 21: Double Linear General Assembly Overview
1200 mm approx.
Fan Tube
Burner
Tube Clamp Package
Reflector
Reflector End Cap
Reflector Support
Coupling
Fan Assembly
Burner Tube
Tube and Reflector Hanger
Tube Clamp
Package
U-Clips
Internal Swirler
Weld Spot
SECTION 6: LINEAR & DOUBLE LINEAR HEATER INSTALLATION
17 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
Tee Assembly
Burner
Reflector
Tube
Tube/Reflector
Hanger
Coupling
Assembly
Fan
Assembly
LEGEND
BH60DL/EF
BH70DL/EF
g
c
b
de
b
f
e e
Repeated
Opposite
Side
BH40DL
BH50DL/EF
g
c
b
de
b
f
e
Repeated
Opposite
Side
BH30DL
g
c
b
de
b
f
Repeated
Opposite
Side
a = reflector width (not shown) - 365 mm
b = end cap to burner/fan - 50 mm
c = end cap to hanger - 50 mm
d = distance first hanger - 2290 mm
e = distance typical between hangers - 3050 mm
f = burner height - 366 mm
g = burner length - 291 mm
Figure 22: Double Linear Layout Overview
Model
Reflector Overlap (approx.)
BH30DL BH40DL BH50DL/EF BH60DL/EF BH70DL/EF
700 mm 250 mm 250 mm 530 mm 530 mm
18 of 74
Step 6.3 Burner Tube Installation
Bow Shackle
Burner Tube
Hanger
2290 mm ± 250 mm
Note:
Tubing requires a downward
slope of 13 mm per 6000 mm
away from burner.
Weld seam
must be to the
bottom of the tube.
Offset mounting
hole must be
to the top.
Description Part Number
Burner Tube 03051100
Bow Shackle E0007576
Tube/Reflector Hanger 03090100
Tube
Tube
Orient coupling so that
the impact block is in the
2:00 or 10:00 oclock
positions
Closed
Open
Tab
76 mm to
101 mm
Slide Bar
Coupling
Wide End
Coupling
Tube
Slide Bar
A
Close coupling
with tab.
B
Start slide bar/coupling lock
onto coupling.
C
Insert tubes into coupling.
D
Tighten coupling to join tubes.
Description Part Number
Coupling 01329600
Slide Bar/Coupling Lock 01329700
Tube 91409408
SECTION 6: LINEAR & DOUBLE LINEAR HEATER INSTALLATION
Step 6.4 Coupling and Tube Assembly
19 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
Incorrect Slide Bar
position
Correct Slide Bar
dimensions
± 50 mm
Drive slide bar until tight.
End of slide bar should be
within tolerance listed below.
• Repeat Step 6.4 A - D until all tubes are assembled. See Page 20, Section 6.4.2 shown below.
Tighten slide bar as shown below.
3050 mm Typ
± 250 mm
2290 mm
± 250 mm
Total Overall
Tube Length
Weld spot
at end of
heat exchanger
Model Overall Tube Length (mm)
Number
of Tubes
BH15ST 6,000 2
BH20ST 9,000 3
BH25ST/EF 9,000 3
BH30ST/EF 12,000 4
BH35ST/EF 12,000 4
BH40ST/EF 12,000 4
BH45ST/EF 15,000 5
BH50ST/EF 15,000 5
BH55ST 18,000 6
Step 6.4.1 Coupling and Tube Assembly (Continued)
Step 6.4.2 Coupling and Tube Assembly (Continued)
20 of 74
Step 6.5 Tube Clamp Package Installation
Description Part Number
Tube Clamp Package01318901
Tube Clamp 01396801
Bolt 97113940
Flat Washer 95211600
Nut 92113900
SECTION 6: LINEAR & DOUBLE LINEAR HEATER INSTALLATION
21 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
WARNING
Fire Hazard
Support reflector with reflector hanger
and support strap.
Reflector must not touch tube.
Failure to follow these instructions can result
in death, injury or property damage.
Hanger
Burner Tube
Reflector
Description Part Number
Tube/Reflector Hanger 03090100
Burner Tube 03051100
Reflector 02750303
Step 6.6 Reflector Installation
22 of 74
SECTION 6: LINEAR & DOUBLE LINEAR HEATER INSTALLATION
2. The overlap at the first and second reflector is a slip
overlap. Thereafter, every third reflector joint is a
slip overlap. A slip overlap is achieved by either:
a.) both reflectors lay inside a hanger.
(no reflector support needed).
b.) using a reflector support with
loose screws at the reflector
overlap.
3. The remaining reflector overlaps require a
non-slip overlap connection. To affix the
reflectors together in a non-slip overlap
either:
a.) use reflector support and tight screws.
b.) if both reflectors lay inside a hanger,
u-clips or sheet metal screws may be
used.
This section of three reflectors joined
together must be affixed to the tube with
at least one reflector support with tight
screws.
Reflector
End Cap
U-Clips
Wire Form
Reflector Support
Strap
Tight
Sheet Metal
Screw
1. The first reflector after the burner must be affixed in
the middle of the reflector with a reflector support and
tight screws.
Loose screws
loosened 2 mm
to allow slippage.
Option A
Slip Overlap
Reflector
Support
Option B
Slip Overlap
Reflector
Tight
Screws
Option B
Non-Slip Overlap
U-Clip
(2 clips per
non-slip overlap
inside a hanger)
Reflector
Option A
Non-Slip Overlap
First
Reflector
Overlap must
be a minimum
of 160 mm
160 mm
Description Part Number
Reflector Support Package 03050010
Wire Form 91908004
Reflector Support Strap 03050000
Screw #8 x 3/4 94320812
U-Clip Package 91107720
Reflector End Cap 027508XX
Step 6.6.1 Reflector, U-Clip and Reflector Support Installation
The pictorial drawings of the heater construction in
Section 6 are schematic only and provide a general
guideline of where hangers, reflector supports and
U-clips are to be installed.
To ensure proper expansion and contraction movement of
the reflectors, a combination of U-clips and reflector
supports are used. The positioning of reflector supports
and U-clips depend on the individual installation. Use
either pop rivets or sheet metal screws instead of U-clips
when installing end caps and joint pieces in areas where
impact and high wind may be a factor.The following rules
must be observed:
23 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
Tee
Coupling
Coupling
Fan Tube
Fan Tube
Weld Spot
Weld Spot
Description Part Number
Tee E0009170
Fan Tube S51XXW
Coupling 01329600
Slide Bar/Coupling Lock 01329700
Tube/Reflector Hanger 03090100
Step 6.7 Double Linear Tee Installation (for double linear heaters only)
24 of 74
SECTION 7: U-TUBE HEATER INSTALLATION
WARNING
Cut/Pinch Hazard
Wear protective gear during installation,
operation and service.
Edges are sharp.
Failure to follow these instructions can result
in injury.
SECTION 7: U-TUBE HEATER INSTALLATION
The figures in this section provide a general overview of
component placement in a BLACKHEAT
The location of some components such as supports and
couplings is crucial for proper installation. Assemble the
heater components as shown on Page 27, Figure 23.
For optional reflector configurations for U-tube heaters,
See Page 8, Figure 11 through Page 9, Figure 17. Install
appropriate suspension hardware, beam clamps, chain or
rod at predetermined locations. Adjustments of chain
length will provide uniform pitch.
If any step is unclear, please contact Roberts-Gordon at
+44 (0)121 506 7700.
®
U-tube system.
7.1 U-Tube Standard Parts List
Part No. Description
072XXXXX Burner Assembly (Input and Fuel Varies) 11111111
BH15UT
BH20UT
BH25UT
BH25UT/EF
BH30UT
BH30UT/EF
BH35UT
BH35UT/EF
BH40UT
BH40UT/EF
BH45UT
BH45UT/EF
BH50UT
BH50UT/EF
07260001Fan Package XP1 1111 ----
07260002 Fan Package XP2 - - - - 1 1 1 -
07260003Fan Package XP3 -------1
03051100Burner Tube, 100 mm x 3048 mm 11111111
91409408Tube, 100 mm x 3048 mm - - -22222
91409423 Tube, 100 mm x 1524 mm - 2 2 - - - 2 2
S5127WFan Tube, 100 mm x 3048 mm, with 3048 mm Swirler - 1111111
S5134WFan Tube, 100 mm x 3048 mm, with 2134 mm Swirler 1-------
01335901U-Bend 11111111
01329600 Standard Coupling Assembly 24444466
01329700Coupling Lock 24444466
02750303Reflector, Aluminium, 2439 mm 44466688
027503SSReflector, Stainless Steel, 2439 mm (Optional)* 44466688
02750800Reflector End Cap, Aluminium 44444444
027508SH Reflector End Cap, Stainless (Optional)* 44444444
03090100Tube and Reflector Hanger 46666688
01318901 Tube Clamp Package (including Nut, Washer & Bolt) 11111111
91908004Wire Form 24444466
03050000Reflector Support Strap 24444466
03020501U-Bend Support Bracket 11111111
E0007576 Bow Shackle** 46666688
91107720 U-Clip Package (20 Pieces) 22222222
91912501U-Bolt M6 22222222
C0090BNut M6 66666666
96411500Lockwasher 6mm 66666666
25 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
Part No. Description
BH15UT
BH20UT
BH25UT
BH25UT/EF
BH30UT
BH30UT/EF
BH35UT
BH35UT/EF
BH40UT
BH40UT/EF
BH45UT
BH45UT/EF
94320812 Screw #8 x 3/4 (3.9mm x 19mm), (goes with 03050000) 4 8 8 8 8 8 12 12
S7199K Damper Flange Assembly (For use on Multiburner Systems) 1 Per Heater
*PVC coating must be removed prior to installation.
**Some models may receive S-hooks (P/N 91907302) or
spring hooks (P/N 91903300), rather than bow shackles
BH50UT
BH50UT/EF
26 of 74
Figure 23: U-Tube Assembly Overview
mm
200
SECTION 7: U-TUBE HEATER INSTALLATION
27 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
BH20UT
BH25UT/EF
BH15UT
BH30UT/EF
BH35UT/EF
BH40UT/EF
BH45UT/EF
BH50UT/EF
a = overall width (not shown) - 850 mm
b = end cap to burner/fan - 50 mm
c = end cap to hanger - 50 mm
d = distance first hanger - 2290 mm
e = distance typical between hangers - 3050 mm
f = distance between last full tube
hanger and half tube hanger - 1900 mm
g = burner height - 366 mm
h = burner length - 291 mm
U-Tube
Burner
Reflector
Tube
Tube/Reflector
Hanger
Coupling
Assembly
LEGEND
h
c
b
d
g
h
c
b
d
g
f
h
c
b
de
g
h
c
b
de
g
f
Figure 24: U-Tube Layout Overview
Model
Reflector
Overlap
BH15UT BH20UT BH25UT/EF BH30UT/EF BH35UT/EF BH40UT/EF BH45UT/EF BH50UT/EF
1780 mm 250 mm 250 mm 580 mm 580 mm 580 mm 690 mm 690 mm
(approx.)
28 of 74
Step 7.2 U-Tube Hanger Placement
2290 mm ± 250 mm
See Assembly
Drawing
First Tube and
Reflector Hanger
Bow
Shackle
Tube and Reflector
Hanger
Suspension
Chain
Optional
Hanging
Configuration
Washers
Bolt
(Torque:
13.5 Nm
129 in lb)
Bow
Shackle
NOTE: Spreader bar must be used on
single suspension point installations.
Do not hang heater from spreader bar.
Threaded
Bar
Tube and Reflector
Hanger
Suspension
Chain
Spreader
Bar
Description Part Number
Bow Shackle E0007576
Tube/Reflector Hanger 03090100
Spreader Bar 07260010
Fan Tube
Burner Tube
Weld seam
must be to the
bottom of the tube.
Offset mounting
hole must be
to the top.
Weld
Spot
Description Part Number
Burner Tube 03051100
Fan Tube S5127W
SECTION 7: U-TUBE HEATER INSTALLATION
Step 7.3 Burner Tube and Fan Tube Installation
29 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
Tube Clamp
Bolt
Lock Washer
Nut
(Torque: 13.56 Nm
120 in lb)
Weld
Spot
Description Part Number
Tube Clamp Package01318901
Tube Clamp 01396801
Bolt 97113940
Flat Washer 95211600
Nut 92113900
Tight
U-bolt
100 mm u-bolt,
secured to burner tube
with M6 lockwashers
and M6 nuts.
TIGHT.
Loose
U-bolt
100 mm u-bolt,
secured to bracket
with M6 lockwashers
and M6 nuts on top and
bottom to allow for tube
expansion and contraction.
U-tube, Standard U-tube, Opposite 45°
Tight
U-bolt
100 mm u-bolt,
secured to burner tube
with M6 lockwashers
and M6 nuts.
TIGHT.
Loose
U-bolt
100 mm u-bolt,
secured to bracket
with M6 lockwashers
and M6 nuts on top and
bottom to allow for tube
expansion and contraction.
Nut (Torque:
90 in lb
10.2 Nm)
Lock Washer
Lock Washer
U-bolt
Fan Tube
Burner
Tube
U-bolt
Tight to
Tube
U-bolt
Tight to
Bracket
Nut
(Torque: 90 in lb
10.2 Nm)
Step 7.3.1 Tube Clamp Package Installation
Step 7.4 U-Tube Support Bracket Assembly Installation
30 of 74
Step 7.5 Coupling and Tube Assembly
Tube
Tube
Orient coupling so that
the impact block is in the
2:00 or 10:00 oclock
positions
Closed
Open
Tab
76 mm to
101 mm
Slide Bar
Coupling
Wide End
Coupling
Tube
Slide Bar
A
Close coupling
with tab.
B
Start slide bar/coupling lock
onto coupling.
C
Insert tubes into coupling.
D
Tighten coupling to join tubes.
Description Part Number
Coupling 01329600
Slide Bar/Coupling Lock 01329700
Tube 91409408
Incorrect Slide Bar
position
Correct Slide Bar
dimensions
± 50 mm
Drive slide bar until tight.
End of slide bar should be
within tolerance listed below.
• Repeat Step 7.5 A - D until all tubes are assembled.
Tighten slide bar as shown below.
SECTION 7: U-TUBE HEATER INSTALLATION
Step 7.5.1 Coupling and Tube Assembly (Continued)
31 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
Tube
Coupling
Weld Spot
Coupling
U-tube
U-tube Support
Bracket Assembly
Weld Spot
Description Part Number
Coupling 01329600
Slide Bar/Coupling Lock 01329700
U-Tube 01335901
Step 7.6 Tube Installation
Step 7.7 U-Tube Installation
32 of 74
Step 7.8 Reflector Installation
WARNING
Fire Hazard
Support reflector with reflector hanger
and support strap.
Reflector must not touch tube.
Failure to follow these instructions can result
in death, injury or property damage.
Reflector
Weld Spot
Description Part Number
Reflector 02750303
SECTION 7: U-TUBE HEATER INSTALLATION
33 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
2. The overlap at the first and second reflector is a slip
overlap. Thereafter, every third reflector joint is a
slip overlap. A slip overlap is achieved by either:
a.) both reflectors lay inside a hanger.
(no reflector support needed).
b.) using a reflector support with
loose screws at the reflector
overlap.
3. The remaining reflector overlaps require a
non-slip overlap connection. To affix the
reflectors together in a non-slip overlap
either:
a.) use reflector support and tight screws.
b.) if both reflectors lay inside a hanger,
u-clips or sheet metal screws may be
used.
This section of three reflectors joined
together must be affixed to the tube with
at least one reflector support with tight
screws.
Reflector
End Cap
U-Clips
Wire Form
Reflector Support
Strap
Tight
Sheet Metal
Screw
1. The first reflector after the burner must be affixed in
the middle of the reflector with a reflector support and
tight screws.
Loose screws
loosened 2 mm
to allow slippage.
Option A
Slip Overlap
Reflector
Support
Option B
Slip Overlap
Reflector
Tight
Screws
Option B
Non-Slip Overlap
U-Clip
(2 clips per
non-slip overlap
inside a hanger)
Reflector
Option A
Non-Slip Overlap
First
Reflector
Overlap must
be a minimum
of 160 mm
160 mm
Description Part Number
Reflector Support Package 03050010
Wire Form 91908004
Reflector Support Strap 03050000
Screw #8 x 3/4 (3.9 x 19mm) 94320812
U-Clip Package 91107720
Reflector End Cap 027508XX
Step 7.8.1 Reflector, U-Clip and Reflector Support Installation
The pictorial drawings of the heater construction in
Section 6 are schematic only and provide a general
guideline of where hangers, reflector supports and
U-clips are to be installed.
To ensure proper expansion and contraction movement of
the reflectors, a combination of U-clips and reflector
supports are used. The positioning of reflector supports
and U-clips depend on the individual installation. Use
either pop rivets or sheet metal screws instead of U-clips
when installing end caps and joint pieces in areas where
impact and high wind may be a factor. The following rules
must be observed:
34 of 74
SECTION 8: MULTIBURNER CONFIGURATION & INSTALLATION
WARNING
Severe Injury Hazard
Secure burner to burner tube with bolts and
lockwashers.
Hang heater with materials with a minimum
working load of 75 lbs (33 kg).
Failure to follow these instructions can result
in death, injury or property damage.
WARNING
Cut/Pinch Hazard
Wear protective gear during installation,
operation and service.
Edges are sharp.
Failure to follow these instructions can result
in injury.
Fan Tube
Damper Flange
Assembly
Note:
Install in the
fully open position
Weld Spot
SECTION 8: MULTIBURNER CONFIGURATION & INSTALLATION
8.1 Initial Assembly
See Page 13, Section 6 for linear heater assembly
instructions.
See Page 25, Section 7 for U-tube heater assembly
instructions.
Check layout drawings for location of manifold pipe
installation.
Figure 25: Multiburner Damper Flange Installation
35 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
Typical Fan
Arrangement
150 mm Hanger
150 mm Manifold
Damper (Typical)
Cross
(100 x 150 x 100 x 150)
100 mm Manifold
100 mm Hanger
ID/ID Sleeve
Tee
(100 x 100 x 100)
Cross
(100 x 150 x 100 x 150)
Max
3000 mm
BH25ST
BH25UT
BH25ST
BH25UT
BH25ST
BH25UT
NOTE: Be sure to
silicone seal all
manifold joints
Reducer
(100 x 150)
Max
1000
mm
Figure 26: Typical Manifold Layout (Linear and U-Tube Configuration)
36 of 74
SECTION 9: BURNER & FAN INSTALLATION
Lock
Washer
Gasket
Bolt
(Torque:13.5 Nm
120 in lb)
Burner
Description Part Number
Bolt 94273914
Lock Washer 96411600
Gasket 02568200
Burner 0720XXXX
NOTE: Tube clamp package not shown for clarity.
For details, see Page 21, Step 6.5.
Fan Assembly
Vent Adapter
Screw
(Torque: 2 Nm
18 in lb)
Note: Apply Silicone
(Recommended)
Install vent adapter
with clamp in the
up position.
Description Part Number
Fan Assembly 072600XX
Vent Adapter 9071060X
Screw E00075XX
Step 9.1 Burner Installation
SECTION 9: BURNER & FAN INSTALLATION
Step 9.2 Fan Assembly
37 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
Fan Tube
Fan Assembly
Tighten securely until tube
cannot be removed.
Weld Spot
Tee
Fan Assembly
Tighten securely until tube
cannot be removed.
9.3 Linear & U-Tube Fan Installation
Step 9.4 Double Linear Fan Installation
38 of 74
Step 9.4.1 Double Linear Fan Installation (Continued)
Fan Assembly
Height Adjuster
Bow
Shackle
Suspension Chain
Tee
Weld Spot
Tee
Condensate Cap
Non-Return Valve
83/90 BWLG Fan
Inlet Cone
Horizontal
Exhaust Bend
Vertical Exhaust Tee
Spiral Aluminum
Tube
ID/ID Sleeve
Horizontal
Exhaust Sleeve
Horizontal
Exhaust Louver
Condensation
runs to low level
3/4" CPVC pipe
1" BSP threaded hole.
Use 1" x ¾" reducer.
(not supplied)
Must be connected
to a drain system
in accordance with
local codes.
Description Part Number
Vertical Exhaust Tee C1324B
Horizontal Exhaust Bend C1325B
Horizontal Exhaust Sleeve C1326B
Horizontal Exhaust Louver S5055F
Condensate Cap 4" 02718851
Condensate Cap 6" 02718852
Non-Return Valve 90201200
SECTION 9: BURNER & FAN INSTALLATION
Step 9.5 Multiburner 83/90 BWLG Fan Assembly (Horizontal and Vertical Outlets)
39 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
Tee
Condensate Cap
Wall
1" BSP threaded hole.
Use 1" x ¾" reducer.
(not supplied)
Must be connected
to a drain system
in accordance with
local codes.
3/4" CPVC Pipe
Flow
Non-Return
Valve
3/4" CPVC
Pipe
3/4" Female
Fan
Step 9.6 Condensate Drain Assembly
40 of 74
SECTION 10: OPTIONAL HEATER ACCESSORIES
WARNING
Cut/Pinch Hazard
Wear protective gear during installation,
operation and service.
Edges are sharp.
Failure to follow these instructions can result
in injury.
SECTION 10: OPTIONAL HEATER ACCESSORIES
41 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
Reflector Side
Extension Bracket
(2 per reflector)
Use additional supports
in high air movement
applications.
Tube and Reflector Hanger
Reflector
Tube
Reflector Support
Description Part Number
Reflector Side Extension Package S7377K
Reflector Side Extension 01368000
Retainer Clips 02751200
Reflector Side Extension 01329910
Sheet Metal ScrewSheet Metal Screw
10.1 Reflector Side Extension Installation
Step 10.1.1 Bracket Installation
Step 10.1.2 Side Reflector Installation
42 of 74
SECTION 10: OPTIONAL HEATER ACCESSORIES
4' Reflector
Section
Reflector
Joint
Flatten
Edge
250 mm
maximum
Scribe
Contour
Cut away contour
with tin snips.
Punch/Drill six
3 mm holes
Reflector
End Cap
(Do not remove
cut out)
Attach Reflector
Joint with six #8
sheet metal screws.
10.2 U-Tube Cover Installation
The package contains two reflector joint pieces (P/N 02750901), one 8’ reflector and 18 x #8 sheet metal screws.
Install the U-tube cover using the following procedure.
Step 10.2.1
Cut the 8’ reflector in half to be used on both sides to
cover the U-tube.
Step 10.2.2
Flatten 4’ reflector edge where joint piece matches. Put a
mark on the 4’ reflector, directly over the tube center.
Center the accessory joint piece on the mark and scribe
its contour on the reflector. Scribe the location of the
mounting holes.
Step 10.2.4
Use six #8 sheet metal screws to attach the joint piece.
Step 10.2.3
Cut away the reflector to clear the tube, leaving about 1”
of material inside the scribed contour to attach the
accessory joint. Drill or punch six 3 mm diameter holes in
reflector in the positions shown below.
Repeat Step 10.2.1 through Step 10.2.4 to attach the reflector joint piece on the other reflector.
Step 10.2.5
The overlap of both reflector joint pieces is attached with six #8 sheet metal screws.
Secure overlap
with six #8
sheet metal screws.
4' Reflector Sections
43 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
Description Part Number
Aluminium Grille 610 mm X1220 mm 91407000
Distance "A" Extension
Minimum Maximum Part No. Width
40 150 mm 01370408 200 mm
150 260 mm 01370412 300 mm
260 370 mm 01370416 400 mm
10.3 Decorative Grille Installation
Step 10.3.1 Grille Installation
Step 10.3.2 Frame Shield Installation
Step 10.3.3 Reflector Side Extension Installation for Decorative Grilles
44 of 74
10.4 Protective Grille Installation
Silicone Cap
Grille
Finger
Description Part Number
Grille Section 08050001
Grille End Cap 08050002
Silicone Cap 91915951-6P
Bend up 90°.
Pull outward.
Grille
Grille End Cap
AB
CD
Grille
Grille
End Cap
Reflector
Final Grille
Section
1010 mm
Step 10.4.1 Silicone Cap Installation
Step 10.4.2 Grille End Cap Installation
SECTION 10: OPTIONAL HEATER ACCESSORIES
Step 10.4.3 Grille Installation
45 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
Tube and
Reflector Hanger
Reflector
Tube
Reflector Support
Strap - Stainless Steel
Mesh Guard
Description Part Number
Mesh Guard 2438 mm E0009855
Mesh Guard 1524 mm C2329B
Strap Stainless Steel S5218W
Description Part Number
Nut Spire C1088B
Screw #8 x 3/8 C1089B
10.5 Sports Hall Guard Installation
Step 10.5.1 Grille Installation
Step 10.5.2 Fastener Installation
Step 10.5.3 Mesh Guard Connection
46 of 74
10.6 Undershield Installation
Reflector
Tube
Assembly Hanging Bracket
Stud
Hex Nut
Description Part Number
Undershield Reflector Package 101 cm S7399K
Assembly Hanging Bracket C0318B
Stud M6 x 90 C0693B
Nut M6 C0090B
Undershield Reflector
Hex Nut
Shield Support Bracket
Description Part Number
Undershield Reflector Package 1010 mm S7399K
Undershield Reflector 1010 mm C0521B
Nut M6 C0090B
Shield Support Bracket 02751700
1010 mm
10.6.1 Hanger Installation
10.6.2 Undershield Installation
SECTION 10: OPTIONAL HEATER ACCESSORIES
10.6.3 Adjust Undershield Height
47 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
10.7 Wall Mounting
Install wall mounting brackets at the height shown in the
layout drawing provided by the estimator. Space wall
mounting brackets and hangers as indicated by
dimensions d, e and f (u-tube) in the relevant layout
overview drawing for your heater. For linear heaters see
Page 15, Figure 20, for double linear heaters see Page
18, Figure 22 and for U-tube heaters see Page 28, Figure
24.
10.7.1 Hardware Installation
The wall mounting brackets must be attached to a
suitable wall through all mounting holes. Screw sizes less
than M8 (5/16") may not be used. In order for the wall
Figure 27: U-Tube (Horizontal)
mounting brackets to adequately carry the weight of the
heater, it must be installed with best building practice.
Model
BH15UT 2 BH15ST 3
BH20UT 3 BH20ST 4
BH25UT/EF 3 BH25ST/EF 4
BH30UT/EF 3 BH30ST/EF 5
BH35UT/EF 3 BH35ST/EF 5
BH40UT/EF 3 BH40ST/EF 5
BH45UT/EF 4 BH45ST/EF 6
BH50UT/EF 4 BH50ST/EF 6
Quantity of Wall
Mounting Brackets
Model
Quantity of Wall
Mounting Brackets
48 of 74
Figure 28: U-Tube (Angle Mounted)
Figure 29: Linear
SECTION 10: OPTIONAL HEATER ACCESSORIES
49 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
WARNING
Carbon Monoxide Hazard
Multiburner systems are not approved for
unvented use and must be vented outdoors.
Unitary heaters installed unvented must be
interlocked with sufficient building exhaust.
Heaters must be installed according to the
installation manual.
Failure to follow these instructions can result
in death or injury.
WARNING
Cut/Pinch Hazard
Wear protective gear during installation,
operation and service.
Edges are sharp.
Failure to follow these instructions can result
in injury.
SECTION 11: VENTING
insulated if longer than 8,000 mm. Contact the
manufacturer if more than 2 x 45° offset bends are
necessary. The flue must be self supporting.
Fans
83 BWLG 190 x 75 (hole) 150 mm dia.
90 BWLG 190 x 75 (hole) 150 mm dia.
Horizontal Ver tical
11.1.4 Flueless Installation
If the heater is being installed in an area where
combustion products can be dissipated within the
building, ensure that the fan outlet is horizontal and away
from the burner. Where installation is close to a wall
(perimeter system) or other obstruction close to the fan
outlet or wall angle mounted, install the heater so that the
fan tube is the furthest away from the wall or obstruction,
i.e. the fan will always blow into the building or away from
the obstruction.
11.2 Ventilation Requirements
Detailed recommendations for air supply are given in the
relevant National Standards. There must be an adequate
supply of air for both combustion and general ventilation.
Air vents should have negligible resistance. Do not locate
air vents where they can be easily blocked or flooded, or
adjacent to any flues or extraction systems carrying
flammable vapour.
11.1 General Venting Requirements
11.1.1 Type C
Room Sealed
The heaters are designed to be installed as room sealed
appliances. The flue and air intake are run as separate
pipes to the special concentric wall or roof terminal. The
wire mesh inside the fresh air adapter on the heater must
be removed prior to installation. See Page 52, Figure 33.
11.1.2 Type B22 Appliance
The flue must be fitted with a low resistance terminal. See
Page 52, Figure 33.
, C32 & C62 Appliance
12
11.2.1 Flue Installation
Where the heater(s) is flued, the space containing it must
have a permanent outside air vent with a minimum
effective area of 4.5 cm
mechanical ventilation is employed, the minimum proven
airflow rate shall be 2.35 m/h per kW of heat input.
If the flue is to be horizontally vented through a wall, a
wind-proof terminal must be fitted to outdoor vent pipe to
prevent a back draught.
per kW of heat input. If
11.2.2 Flueless Installation (EN 13410)
The installation room must have a volume of at least
3
10m
/kW of installed nominal heat input. A minimum of
3
10m
/h of exhaust air per kW of operating heat input must
be ventilated out of the installation room by either thermal
or mechanical evacuation. Appropriate exhaust and fresh
air openings must be provided and exhaust fans
interlocked with the operation of the heating equipment.
Further no exhaust system is necessary if the building air
change rate is greater than 1.5 per hour or the density of
operating heat input is not greater than 5 W/m
3
.
11.1.3 Flue Installation
The fan outlet may discharge vertically or horizontally.
Connection should be made using 100 mm minimum
diameter aluminium or stainless steel flue material to
National Standard and must be adapted to insert into the
100 mm flue adapter. Both fresh air supply and flue duct
shall not exceed 10,000 mm. BH15 and BH20 flue must
be insulated if longer than 5,000 mm. BH25 flue must be
50 of 74
Figure 30: Individual Flue Connection Detail
Fan Tube
Flue Pipe
Flue Adapter
Fan Assembly
Screw
(Torque:2 Nm
18 in lb)
Lockwasher
Nut
Fan Tube
Fan
A
B
C
End of Tube
Heater Model Fan Model A B C Part Number
BH 15-30 Torin DSF-133-42 79 mm 95 mm 45 mm C2374B
BH 35-50 AO Smith JF1G 89 mm 102 mm 51 mm 90710000
SECTION 11: VENTING
Figure 31: Flue Connection Dimensions
11.3 Outside Combustion Air Supply
Where necessary, clean air may be ducted into the burner
box through an added spigot on the back of the burner
box replacing the existing dust arrest baffle plate.
See Page 50, Section 11.1.3 for recommendations on duct
length. Air duct should be as straight as possible. Do not
use bends in excess of 45°. Consult the manufacturer if
more than 2 x 45° offset bends are necessary. The fresh
air duct must be self supporting.
11.3.1 Air Supply Requirements
When fresh air duct is used, follow one of these rules:
• The flue must penetrate the roof while fresh air can
penetrate any wall. (See Page 52, Figure 33)
• The flue and fresh air supply must penetrate the
same roof, at a minimum of 1 m apart. (See Page 52,
Figure 33)
• The flue must penetrate 1 m higher than the fresh air
inlet on the same wall. (See Page 52, Figure 33)
51 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
Burner
Dust Arrest
Baffle Plate
100 mm Diameter
Fresh Air Intake Spigot
Sheetmetal
Screw
Description Part Number
Dust Arrest Baffle 07230000
Fresh Air Intake Spigot 07260000
Figure 32: Fresh Air Intake Spigot
Figure 33: Air Supply with Flue Configurations
C
52
C
32
C12 C32 C
62
C
B
12
22
52 of 74
11.4 Common Duct
When using a common air inlet duct, always ensure that
the area of the common air inlet duct represents the area
of all air ducts.
SECTION 12: GAS PIPING
WARNING
Fire Hazard
Tighten gas line fittings to connect gas supply
according to Figure 34.
Flex gas line can crack when twisted.
Gas line moves during normal operation.
Use only 1000 mm long connector of 1/2" or
3/4" nominal ID.
Failure to follow these instructions can result
in death, injury or property damage.
SECTION 12: GAS PIPING
hose. This can cause a gas leak resulting in an unsafe
condition if the gas connection is not made in strict
accordance with Figure 34.
Meter and service must be large enough to handle all the
burners being installed plus any other connected load.
The gas hose which feeds the system must be large
enough to supply the required gas
pressure drop of 13 mm wc. When gas piping is not
included in the layout drawing, the local gas supplier will
usually help in planning the gas piping.
IMPORTANT - the complete installation must be tested
for gas soundness and be purged in accordance with
local and national codes.
• Check the pipe and tubing ends for leaks before
placing heating equipment into
service. When checking for gas leaks, use a soap
and water solution; never use an open flame.
with a maximum
WARNING
Explosion Hazard
Leak test all components of gas piping
before operation.
Gas can leak if piping is not installed
properly.
Do not high pressure test gas piping with
heater connected.
Failure to follow these instructions can result
in death, injury or property damage.
It is important that the gas supply pipe and electrical
connections do not support any of the heater’s weight.
Installation pipes should be fitted in accordance with
National Standards. Pipe work from the meter to the
heater(s) must be of adequate size. Pipes of smaller size
than the heater inlet gas connection should not be used.
Install the gas hose as shown on Page 54, Figure 34. The
gas hose accommodates expansion of the heating
system and allows for easy installation and service of the
burner. Before connecting the burners to the supply
system, verify that all high pressure testing of the gas
piping has been completed.
There is an expansion of the tube with each firing cycle.
This will cause the burner to move with respect to the gas
53 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
INCORRECT POSITIONS (WRONG INSTALLATION)
Heater Movement
Heater Movement
Heater Movement Heater Movement
CORRECT POSITIONS
Correct position with flex connector not supplied by Roberts-Gordon.
Burner
Stainless Steel Flexible Connector
supplied by Roberts-Gordon 1000 mm Long
Minimum Bend Radius 140 mm
Shut-Off Valve
Flex Line
Connector
45°
0°
45°
545 mm
minimum
Gas Supply Pipe
Flexible Gas Hose
1000 mm length
300 mm
Shut-Off Valve
(included with gas
hose) must be parallel
to burner gas inlet. The
80 mm displacement
shown is for the cold
condition. This
displacement may
reduce when the
system is fired.
80 mm
max. displacement
Side View
Heater Movement
CAUTION
Product Damage Hazard
Hold gas nipple securely with pipe wrench
when attaching gas hose.
Failure to follow these instructions can result
in product damage.
Figure 34: Gas Connection with Stainless Steel Flex Connector
54 of 74
SECTION 13: WIRING
DANGER
Electrical Shock Hazard
Disconnect electric before service.
Heater must be properly grounded.
Failure to follow these instructions can result
in death or electrical shock.
230 V
1 Ø
50 Hz
Burner 1
L
N
Earth
Fan 1
Earth
N
L
Burner 2
Fan 2
Burner 3
Fan 3
Controller or
Thermostat
230 V
1 Ø
50 Hz
Burner 1
Burner 2
L
N
Earth
Earth
N
L
Fan
Controller or
Thermostat
SECTION 13: WIRING
Connect to the electrical supply using a 3 pin plug via a
locally mounted double pole fused switch having a
minimum disconnection of 3 mm on each pole. This
switch should be fused to 3 amps. The burner is fused at
2 amps. There are no control connections in the standard
burner. Control is affected by interruption of the main
power inlet. See Page 55, Section 13.1 through Page 56,
Section 13.4 for the external wiring details for the single-
burner, double linear and multiburner heater systems.
All wiring must comply with current wiring regulations and
any local regulations which may apply. Always switch off
the supply to the burner and disconnect by removing the
plug before removing the burner side panel.
13.1 Typical External Wiring Diagram (Linear or U-Tube)
13.2 Typical External Wiring Diagram (Double Linear Option 1)
55 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
Controller or
Thermostat
Burner 1 Burner 2
L
N
Earth
Fan
Earth
N
L
230 V
1 Ø
50 Hz
13.3 Typical External Wiring Diagram (Double Linear Option 2)
13.4 Typical External Wiring Diagram (Multiburner)
56 of 74
13.5 Internal Wiring Diagram
SECTION 13: WIRING
57 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
P
P
Fan Neon
Burner Neon
Neon
Ignition
Gas
Valve
Flame
Sensing
Pressure
Switch
Fan
Thermostat
KEY TO
SYMBOLS
T0 T1 T2 T3 T4 T5 T6 T7
10 sec
Tp
40 sec max.
Interruption of main
Tp
10 sec
Ts
10 sec
flame sensing
11 sec typical
T8
Lockout Alarm
Signal (optional)
Burner Lockout
signal received after
3 ignition trial
failures
SECTION 14: OPERATION
DANGER
Electrical Shock Hazard
Disconnect electric
before service.
Explosion Hazard
Turn off gas supply to
heater before service.
WARNING
Burn Hazard
Allow heater to cool
before service.
Cut/Pinch Hazard
Wear protective gear
during installation,
operation and service.
More than one
disconnect switch may
Tubing may still be hot
after operation.
Edges are sharp.
be required to
disconnect electric from
heater.
Heater must be
connected to a properly
grounded electrical
source.
Failure to follow these instructions can result in death, electric shock, injury or property damage.
Figure 35: Sequence of Operation Chart
NOTE: If the heater operates for more than 24 hours continuously, the ignition module will automatically recycle the
burner to ensure that all safety functions are still in working condition.
14.1 Heater Lockout Indication (Optional)
In case of flame loss during operation of the heater, the
burner control unit goes to lockout mode after three
ignition trials. At this stage a signal or closed relay will
enable the ROBERTS GORDON
58 of 74
®
controller, BMS
system, etc. to indicate precisely which heater has failed.
This can be done by two options.
14.1.1 Heater Lockout Indicator by Connector
A 230 V signal is provided which enables the ROBERTS
GORDON
heater that has failed. An additional wire has to be
installed from the heater lockout indicator connector to
the monitoring computer. See Page 57, Section 13.5.
Description Part Number
Connector male - Lockout Indicator 91324000
Connector female - Lockout Indicator 91324001
Wire Blue 12" 91300011
Wire Brown 12" 91300012
®
controller, BMS system, etc. to indicate the
14.1.2 Heater Lockout Indicator by Volt Free
Connector
A volt free contact relay is closed which enables the
ROBERTS GORDON
indicate the heater that has failed. An additional wire has
to be installed from the heater volt free connector to the
monitoring computer. See Page 57, Section 13.5.
Description Part Number
Connector male - Volt Free 91324000
Connector female - Volt Free 91324001
Wire Blue 7" 91300004
Wire Brown 7" 91300005
Wire Yellow 12" 91300003
Screw #8 x 3/8 Hex Wshr PHH Type 23 94961406
Base relay P2RF05E C1050B
Relay G2R1-SN IMO 220 V 10 A C1049B
®
controller, BMS system, etc. to
14.2 Testing
Establish that a satisfactory purged gas supply and an
electrical supply is available to the heater. Ensure that all
time clocks and thermostats are set to call for heat.
With the gas supply cut off at the appliance isolating cock
and the electrical supply isolated by switching off at the
local switch and removing the appliance inlet plug, open
the control chamber secured by the two screws. Loosen
the sealing screw from the pressure test point and
remove the cover cap from the governor.
Turn on the gas supply and connect appliance electrical
plug. Ensure that the timer or thermostat, if fitted, are set
to call for full gas rate. Switch on at the local switch. The
sequence as described should take place. If not, refer to
detailed fault finding sequence. When flame is
established, check the gas pressure reading and adjust if
necessary. Refer to burner data label.
Check the gas pressure at the outlet of the gas valve. See
Page 74, Section 18.9.1 or See Page 75, Section 18.9.2
for pressure settings or refer to the data plate.
Switch off the electrical supply (shutting down the heater),
remove pressure gauge - tighten pressure test point
screw, ensuring a tight gas seal. Replace governor cover
cap. Close burner side cover.
14.3 Commissioning (Multiburner)
1. Establish that a satisfactory purged gas supply and
an electrical supply is available to the heater.
2. ENSURE that all the dampers are in the fully open
position.
SECTION 14: OPERATION
3. With the gas supply off at each of the burners and
the electrical supply isolated, open the control
chamber secured by t wo self tapping screws.
4. Ensure that all time clocks and thermostats are set
to call for heat.
5. Switch on the electrical supply at the main isolator.
This will start the exhaust fan.
6. Balancing Cold Vacuum
Check each burner vacuum by connecting an
inclined pressure gauge to the tee on the pressure
switch inlet side in the burner. Adjust the damper so
that the vacuum is 1.9 mbar. Repeat for each burner.
7. Starting at the end burner (furthest from the exhaust
fan), with the inclined pressure gauge connected as
described above. Turn on the gas supply and con-
nect appliance electrical plug, reset the pressure
switch by removing vacuum from the inlet side of the
pressure switch waiting several seconds and recon-
necting. The start up sequence described on Page
58, Section 14 should take place. If not, refer to
detailed fault finding sequence. When flame is
established, check the gas pressure reading and
adjust if necessary. See data label.
Check the gas pressure at the outlet of the gas
valve. See Page 74, Section 18.9.1 or See Page 75,
Section 18.9.2 for pressure settings or refer to the
data plate.
Switch off the electrical supply (shutting down the
heater), remove pressure gauge - refit pressure testpoint screw, ensuring a tight gas seal. Replace gov-
ernor cover cap.
Repeat this procedure for each burner in the system.
Close the control chamber and secure with two
sheet metal screws.
8. Balancing
Hot Vacuum
Reconnect all the burners on the system and allow
them to reach full operating temperature (approximately 20 minutes). Return to each burner and
recheck the hot vacuum at the tee on the inlet to the
pressure switch. Readjust the damper so that the
hot vacuum of 1.5 mbar (2.0 mbar for BH40EF) is
achieved and lock the damper in position.
14.4 System Checks
Switch on again at the local switch to ensure smooth
ignition. Carry out the following system checks:
When running, turn off the gas supply at the appliance.
The heater will immediately shut down followed by three
ignition attempts followed by lockout.
Linear and Double Linear only:
When running, disconnect the fan plug from the burner.
The unit should shut down within three seconds, proving
operation of the pressure switch.
14.5 User Instructions
After satisfactory testing, ensure that the client is fully
aware of the operation of the system. Bring this manual to
59 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
the attention of the user or purchaser; instruct them in the
safe operation of the heater(s). Advise the user that if the
system is unflued, any reduction in the natural ventilation
of the building may require a flue to be fitted, or additional
ventilation grilles will be required.
14.6 ECA Approved Systems (Multiburner only)
On ECA approved systems, it must be verified that the
requirement of 91% net combustion efficiency is met.
Measurements of temperature and CO
the exhaust gasses have to be done. The net combustion
efficiency calculates as follows;
100 - [ (t
t
E
t
R
- tR) (A/CO2m - B) ] = net combustion efficiency
E
- Exhaust Temperature °C
- Room Temperature °C
A - G20 = 0.37, G31 = 0.42
B - G20 = 0.009, G31 = 0.008
CO
- Measured CO2 Concentration %
2m
concentration in
2
60 of 74
SECTION 15: SERVICING INSTRUCTIONS
Cut/Pinch Hazard
Wear protective gear
during installation,
operation and service.
Edges are sharp.
WARNING
Failure to follow these instructions can result in death, electric shock, injury or property damage.
Burn Hazard
Allow heater to cool
before service.
Tubing may still be hot
after operation.
Explosion Hazard
Turn off gas supply to
heater before service.
DANGER
Electrical Shock Hazard
Disconnect electric
before service.
More than one
disconnect switch may
be required to
disconnect electric from
heater.
Heater must be
connected to a properly
grounded electrical
source.
SECTION 15: SERVICING INSTRUCTIONS
IMPORTANT: Never use the heater as a support for
ladders or other access equipment. Always test for gas
soundness with a suitable detection fluid after completing
any servicing or exchange of gas carrying component.
On completion of any service/fault finding tasks which
require the breaking and remaking of electrical
connections, the checks:- A:Earth Continuity, B:Polarity
and C:Resistance to Earth must then be repeated.
15.1 Annual Procedure
Carry out the following procedure annually. The preferred
time would be immediately before the winter heating
period. If very dirty conditions arise, it may be necessary
to carry out this procedure more often. If the unit takes in
air through an air duct or filter assembly, more frequent
service may be necessary.
order. Carry out the Testing Procedure. See Page 59,
Section 14.2.
15.2 Component Removal
First, isolate the heater from the gas and electrical
supplies. Entry to the burner assembly is gained by
removing the door screws and opening the hinged side
cover. Entry to the combustion chamber is gained by
removing the combustion chamber cover.
15.2.1 Electrode
Figure 36: Burner Cup Position
15.1.1 Burner and Fan Removal
Isolate the heater from the gas and electrical supplies.
Remove the fan plug from the burner. Unscrew the
securing screws on the burner flange. The burner can
now be removed. Take care not to disturb the gasket on
the flanged burner tube. Unscrew the securing screw on
the fan flange spigot. The fan can now be removed.
15.1.2 Burner and Fan Removal Maintenance
Remove the fan and burner independently to floor level
and clean both items internally using a soft brush and
compressed air, if available. Take care not to damage the
internal parts of the burner. Check fan impeller for
cleanliness and free rotation.
The electrodes are an integral part of the burner. To
check spark gap, remove the securing screws on the
electrode and withdraw it ensuring the gasket is not
damaged. Spark gap on electrode should be
approximately 3 mm.
15.1.3 Tube and Reflector Maintenance
With burner and fan removed, clean the outer surfaces of
the tubes using a brush and wipe the inner surface of the
reflector with a soft damp cloth - use a household
detergent if necessary. Never use abrasive cleaners on
the reflectors. Reassemble the burner and fan in reverse
15.2.2 Burner Head/Injector Jet
When the cover is removed completely, the burner
assembly is exposed. Unscrew the burner cup. Remove
brass injector jet (orifice). Replace in reverse sequence.
15.2.3 Solenoid Valve/Governor
Remove burner head. Remove screws securing the
solenoid/governor body bracket. Withdraw the four wires
between the solenoids. The solenoid/governor and
fittings can now be withdrawn from the compartment. The
solenoid(s) can be removed from the body by unscrewing
central screw. Replace in reverse sequence. Note: Earth
is green/yellow.
61 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
15.2.4 Automatic Flame Control Unit
Remove black ignition lead. Withdraw the connectors.
Remove two screws from the cover. Replace if faulty.
Refit in reverse sequence.
15.3 Maintenance Checklist
Installation Code and Annual Inspections:
All installation and service of ROBERTS GORDON
equipment must be performed by a contractor
15.2.5 Pressure Switch
Disconnect the two silicone tubes. Remove wires from
the three blades. Remove two screws which secure the
pressure switch to the burner. Remove pressure switch.
Replace pressure switch, if faulty, and refit in reverse
sequence ensuring that the rubber tubes are reconnected
to the switch correctly.
Note: Wires fitted as follows:
NO - Yellow
NC - White
Common - Black
15.2.6 Neons
Remove the two push on connectors and remove the
neons by pushing downwards. Replace in reverse
sequence.
qualified in the installation and service of equipment
sold and supplied by Roberts-Gordon and conform
to all requirements set forth in the ROBERTS
®
GORDON
manuals and all applicable
governmental authorities pertaining to the
installation, service and operation of the equipment.
To help facilitate optimum performance and safety,
Roberts-Gordon recommends that a qualified
contractor conduct, at a minimum, annual
inspections of your ROBERTS GORDON
®
equipment and perform service where necessary,
using only replacement parts sold and supplied by
Roberts-Gordon.
The Vicinity of the Heater Do not store or use flammable objects, liquids or vapours near the heater.
Immediately remove these items if they are present.
See Page 5, Section 3.
®
Vehicles and Other
Objects
Maintain the clearances to combustibles.
Do not hang anything from, or place anything on, the heater.
Make sure nothing is lodged underneath the reflector, in between the tubes
or in the decorative or protective grilles (included with select models).
Immediately remove objects in violation of the clearances to combustibles.
See Page 5, Section 3.
Reflector Support reflector with hanger and support strap.
Reflector must not touch tube.
Make sure there is no dirt, sagging, cracking or distortion.
Do not operate if there is sagging, cracking or distortion.
Make sure reflectors are correctly overlapped. See Page 23, Section 6.6.1.
or Page 34, Section 7.8.1.
Clean outside surface with a damp cloth.
Vent Pipe Venting must be intact. Using a flashlight, look for obstructions, cracks on
the pipe, gaps in the sealed areas or corrosion.
The area must be free of dirt and dust.
Remove any carbon deposits or scale using a wire brush.
See Page 50, Section 11.
Outside Air Inlet Inlet must be intact. Look for obstructions, cracks on the pipe, gaps in the
sealed areas or corrosion.
The area must be free of dirt and dust. Clean and reinstall as required.
62 of 74
SECTION 15: SERVICING INSTRUCTIONS
Tubes Make sure there are no cracks.
Make sure tubes are connected and suspended securely.
See Page 11, Section 5.
Make sure there is no sagging, bending or distortion.
Gas Line Check for gas leaks. See Page 53, Section 12.
Burner Observation
Window
Blower Scroll, Wheel and
Make sure it is clean and free of cracks or holes.
Clean and replace as required.
Compressed air or a vacuum cleaner may be used to clean dust and dirt.
Motor
Burner Cup and Orifice Clear of obstructions (even spider webs will cause problems).
Carefully remove any dust and debris from the burner.
Electrode Replace if there are cracked ceramics, excessive carbon residue, or erosion
of the electrode.
The electrode gap should be 3 mm.
Thermostat There should be no exposed wire or damage to the thermostat.
See Page 55, Section 13.
Suspension Points Make sure the heater is hanging securely.
Look for signs of wear on the chain or ceiling.
See Page 11, Section 5.
Sports Hall Guard,
Decorative and Protective
Grilles (optional)
The grille must be securely attached. If the grille is loose or off, contact a
contractor qu
alified in the installation and service of gas-fired heating equip-
ment for repair.
Check that side reflector extensions are installed correctly and secured in
place if necessary (decorative grille only).
See Page 42, Section 10.1 and Page 45, Section 10.4.
Make sure shield is installed correctly and secured in place if necessary.
(Decorative grille only.) See Page 44, Section 10.3.2.
Wall Tag If a wall tag is present, make sure it is legible and accurate. Please contact
Roberts-Gordon LLC or your ROBERTS GORDON
®
independent distributor
if you need a wall tag. See Page 4, Section 2.1.
63 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
DANGER
Electrical Shock Hazard
Disconnect electric before service.
Heater must be properly grounded.
Failure to follow these instructions can result
in death or electrical shock.
Fire Hazard
Keep all flammable
objects, liquids and
vapors the minimum
required clearances to
combustibles away
from heater.
Some objects will catch
fire or explode when
placed close to heater.
Cut/Pinch Hazard
Wear protective gear
during installation,
operation and service.
Edges are sharp.
WARNING
Failure to follow these instructions can result in death, injury or property damage.
Burn Hazard
Allow heater to cool
before service.
Tubing may still be hot
after operation.
Explosion Hazard
Turn off gas supply to
heater before service.
SECTION 16: TROUBLESHOOTING
64 of 74
16.1 Troubleshooting Flow Chart (Linear, Double Linear and U-Tube)
No
No NoNo
Yes
No YesYesNo
No
No
No
No
Yes
NoNoYes
Yes
Yes
YesNoYes
Yes
Yes
Yes
Replace ignition
module.
Is there power out
from pin 10 on
ignition module?
Replace Fan.
Turn up thermostat.
Does the fan turn on?
Place a jumper across
the thermostat terminals.
Does the fan turn on?
Check thermostat wiring
and replace thermostat if
necessary.
Is there power (230V)
at the burner?
Check relay wiring
(if applicable) and wiring
to the burner.
Remove Black & White
leads from the pressure switch;
place jumper between leads.
Does the fan turn on?
Replace pressure switch.
Remove obstruction.
Unplug burner.
Does the fan
turn freely?
Is the fan obstructed?
Fan bearings may have
failed. Replace fan.
Remove obstruction.
Repair, replace or
tighten hoses
as necessary.
Is the flue pipe or
the inlet of the
burner obstructed?
Are the hoses to the pressure
switch secure and leak free?
Remove Black and Yellow
leads from the pressure switch;
place a jumper between leads.
Is there a spark?
Replace pressure switch.
Is the igniter gap
set at 3 mm?
Carefully reset gap
to 3 mm.
Replace automatic
control unit.
Unplug burner and check
electrode and ignition wire.
Are they damaged?
Replace electrode and
ignition wire as needed.
Is there spark at the igniter?
SECTION 16: TROUBLESHOOTING
65 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
No NoNo
NoYesYes
No
No YesNoYes
No
YesYes
NoNo
Yes
Yes
NoYesNo
Yes
Yes
Yes
Yes
Yes
No
Does the burner light?
Were the gas lines
purged of air correctly?
Is there sufficient inlet gas
pressure (See Specification
Section) during ignition?
Purge Lines.
Measure voltage on valve
terminals. Is there 230 V
during ignition time?
Check gas line stop cock.
Check gas supply at meter.
Contact gas company.
Are the wires connecting the
automatic control unit OK?
Replace automatic
control unit.
Check for the proper jet
and air plate inside the
burner.
Is the gas outlet pressure
in accordance with
specification section
of this manual?
Is there gas outlet pressure
available during the
ignition period?
Replace/Correct wires.
Adjust the governor
pressure.
Replace solenoid
coil.
Ignition module may have
failed. Replace module.
Is the insulation on the
electrode/sensor leads
OK?
Replace/Correct
Wires.
Re-establish connections.
Is the wiring at the
module properly
connected?
Are the Live and Neutral
reversed?
Reverse polarity.
Is the continuity of the
earth wire established?
Reestablish continuity.
Does the burner
stay on?
Does the burner turn off
when the call for heat ends?
Check the thermostat and
check the continuity of the
ground wire.
TROUBLESHOOT ENDS.
If problems persist, contact
Roberts-Gordon at
Tel: +44 (0)121 506 7700 or
Fax: +44 (0)121 506 7701 or
online at www.rg-inc.com
Troubleshooting Flow Chart (Linear, Double Linear and U-Tube)
66 of 74
16.2 Troubleshooting Flow Chart (Multiburner)
Refer to control panel
IOS manual for
troubleshooting.
Fan motor may have to
be replaced.
Remove obstruction.
No
No YesYesNo
No
No
Yes
NoNoYes
Yes
Yes
Yes
No
No
Yes No
Yes
Yes
No
No
No Yes
Check thermostat
and replace if
necessary.
Turn up thermostat.
Does the fan turn on?
Remove obstruction.
Repair, replace or
tighten hoses
as necessary.
Is the flue pipe or
the inlet of the
burner obstructed?
Are the hoses to the pressure
switch secure and leak free?
Remove Black and Yellow
leads from the pressure switch;
place a jumper between leads.
Is there a spark?
Replace pressure switch.
Is the igniter gap
set at 3 mm?
Carefully reset gap
to 3 mm.
Replace automatic
control unit.
Unplug burner and check
electrode and ignition wire.
Are they damaged?
Replace electrode and
ignition wire as needed.
After 20 second pre-purge
Is there spark at the igniter?
Check clock program.
Reset as required.
Is there power (230V)
to the control panel?
Is the clock set to on?
Is there power output
to the fan?
Disconnect power to the
motor. Does the
motor turn freely?
Motor may have have tripped
overload switch. Wait
10 - 15 minutes for
automatic reset.
Is the motor connected
properly? Refer to the wiring
diagrams on the motor and
in the installation manual.
Is there an obstruction to
the pump impeller?
SECTION 16: TROUBLESHOOTING
67 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
No
Yes
Do the burners turn off
when the call for heat ends?
Check the
control panel.
NoYes
YesNoNo
Yes
Yes
Consult venting and wiring
sections of this manual
for reversal instructions.
Follow burner check
procedure given above.
Manifold ID/ID Connectors
may be installed improperly.
High temperature silicone
sealant should be used at
all connections.
Is the rotation of the pump
motor correct?
Are there any "dead" burners
in a branch?
Is the vacuum setting
too low?
Adjust system for proper
vacuum. See
Specification Section.
Is the system leaking water?
No
No NoNo
NoYesYes
No
No YesNoYes
YesYes
NoNo
Yes
Yes
NoYesNo
Yes
Yes
Yes
Yes
No
Do all burners light?
Were the gas lines
purged of air correctly?
Is there sufficient inlet gas
pressure (See Specification
Section) during ignition?
Purge Lines.
Measure voltage on valve
terminals. Is there 230 V
during ignition time?
Check gas line stop cock.
Check gas supply at meter.
Contact gas company.
Are the wires connecting the
automatic control unit OK?
Replace automatic
control unit.
Check for the proper jet
and air plate inside the
burner.
Is the gas outlet pressure
in accordance with
Specifications Section
of this manual?
Is there gas outlet pressure
available during the
ignition period?
Replace/Correct wires.
Adjust the governor
pressure.
Replace solenoid
coil.
Ignition module may have
failed. Replace module.
Is the insulation on the
electrode/sensor leads
OK?
Replace/Correct
Wires.
Re-establish connections.
Is the wiring at the
module properly
connected?
Are the Live and Neutral
reversed?
Reverse polarity.
Is the continuity of the
earth wire established?
Re-establish continuity.
Do the burners
stay on?
TROUBLESHOOT ENDS.
If problems persist, contact
Roberts-Gordon at
Tel: +44 (0)121 506 7700 or
Fax: +44 (0)121 506 7701 or
online at www.rg-inc.com
Troubleshooting Flow Chart (Multiburner)
68 of 74
16.3 Manifold Gas Pressure Setting
Governor (orifice) pressure
while burner is running. See
Page 74, Section 18.9.1 or See
Page 75, Section 18.9.2
Gas Supply pressure
while burner is running. See
Page 74, Section 18.9.1 or
See Page 75, Section 18.9.2
Governor Adjustment Screw
(behind cover)
SECTION 16: TROUBLESHOOTING
Manometer
6
5
4
3
2
1
0
1
2
3
4
5
6
6
5
4
3
2
1
0
1
2
3
4
5
6
69 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
Carbon Monoxide Hazard
WARNING
Use only genuine ROBERTS GORDON
®
replacement parts per this installation, operation and
service manual.
Failure to follow these instructions can result in death, electric shock, injury or property damage.
Explosion Hazard
DANGER
Electrical Shock Hazard
Fire Hazard
SECTION 17: REPLACEMENT PARTS
70 of 74
A
SECTION 17: REPLACEMENT PARTS
N
L
D
M
K
E
F
C
G
H
Q
I
O
J
Item Description Part Number Item Description Part Number
A Automatic Control Unit 90438702 O Dust Arrest Baffle Plate 07230000
C Flex Line Adapter 91220700 Q Mains in socket with EMC Filter 90438902
Pressure Switch for
BH25 - BH55, BH50EF, (0.23" w.c.)
BH15 and BH20 (0.32" w.c.)
D
BH30EF and BH35EF (0.41" w.c.)
BH45EF (0.47" w.c.)
BH40EF (0.79" w.c.)
BH25EF (0.59" w.c.)
E Amber Neon Lamp 91320602 N/S Outside Air Kit 07260000
F Gas Valve 90033101 N/S Flue Collar 100 mm 91911700
GGovernor Screw N/A N/S Outside Air Mounting Plate 07261000
H Outlet Pressure Tap N/A N/S #8 x 3/8 Washer Head Screw 94118106
I Flex Manifold 03090702T N/S Burner Tube Gasket 02568200
J Star Washer 96212100 N/S Wire Purple 12.5" 07250007
Jet Orifice
K
(See Page 74, Section 18.9.1)
L Burner Cup Assembly 03020100 N/S Wire Harness BH Pressure Switch 07250005
M Mica Window Assembly 02552303 N/S Wire Harness BH Main Power 07250004
N Electrode Assembly 90427403 N/S Lockout Indicator Connector (male) 91324000
N/S Electrode Gasket 02558501 N/S Lockout Indicator Connector (female) 91324001
Notes:
90439801
90439802
90439803
90439804
90439808
90439809
N/A N/S Wire Harness BH Gas Valve 07250006
N/S Ignition Wire 90427704
71 of 75
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
SECTION 18: SPECIFICATIONS
18.1 Material Specifications
18.1.1 Combustion and Tubes
100 mm dia. 16 gauge heat treated
aluminised mild steel.
18.1.2 Reflectors
NS3 H14 aluminium or 1.4016 2R stainless
steel (option).
18.2 Heater Specifications
18.2.1 Sequence Controller
Fully automatic, three try, direct spark, 100% shut off
ignition flame rectification module.
18.2.2 Electrical
Rating: 230V, 50 Hz, 1 Ø, 1 A
Connection: 3 pin moulded plug
18.3 Venting Specifications
18.3.1 Fans
BH-15, 20, 25, 30............. Model: Torin DSF 133-42
BH-25 EF, 30 EF, 35 EF,
BH-35, 40, 45 .................. Model: Torin DSA 524-202
BH-40 EF, 45 EF,
50 EF, BH-50 .................. Model: Magnetek JF1G
BH30DL, 40DL, BH50DL/EF,
60DL/EF, 70DL/EF ........... Model: Magnetek JF1G
Multiburner .................. Model: Airflow 83 BTLW
.................. Model: Airflow 90 BTLW
Consult the manufacturer for availability of alternate fans.
18.2.3 Gas Supply
Connection: Rc1/2 (1/2" BSP int)
Natural G20:
Minimum - Inlet 15 mbar (6 in wg)
Maximum - Inlet 50 mbar (20 in wg)
Natural G25:
Minimum - Inlet 17.5 mbar (7 in wg)
Maximum - Inlet 50 mbar (20 in wg)
LP Gas (Propane or Butane):
Minimum - Inlet 32.5 mbar (13 in wg)
Maximum - Inlet 50 mbar (20 in wg)
18.3.2 Flue
When fitted, the flue must be 100 mm, or greater in
diameter, and must conform to National Codes. The flue
must be self supporting. Inlet must be 100 mm diameter.
Multiburner - Flue must be 150 mm diameter and will be
sized to suit arrangement and will connect to the fan. Flue
material must conform to National Codes. The flue must
be self supporting.
18.4 Suspension Specifications
Hang heater with materials with a minimum working load
of 33 kg.
18.5 Controls Specifications
Time switches, thermostats, etc. can be wired into the
electrical supply. External controls supplied as an
optional extra.
72 of 74
SECTION 18: SPECIFICATIONS
18.6 Linear Heater
BH15ST
BH20ST
BH25ST
BH25ST/EF
BH30ST
BH30ST/EF
BH35ST
BH35ST/EF
BH40ST
BH40ST/EF
BH45ST
BH45ST/EF
BH50ST
BH50ST/EF
Input - Gross (kW) 15 20 25 30 35 40 45 50/51 55
Input - Net (kW) 13.5 18 22.5 27 31.5 36 40.5 45/46 49.5
Tube Length (mm) 6096 9144 9144 12192 12192 12192 15240 15240 18288
Overall Heater Length (mm) 6661 9709 9709 12757 12767 12767 15815 15850 18579
Weight (kg) 39 55 55 68 68 68 81 81 95
Heated Area (m
Minimum Installation
Height(mm)
Recommended Installation
Height (mm)
2
) 20-160 30-210 40-265 50-315 55-370 65-420 70-475 80-525 90-620
3500 3500 3500 3500 4600 5000 5000 5000 6000
3500 3600 3900 4200 4800 5500 6700 7600 8000
* Only available in Multiburner.
18.7 Double Linear Heater
BH30DL
BH40DL
BH50DL
BH50DL/EF
BH60DL
BH60DL/EF
BH70DL
Input - Gross (kW) 30 40 50 60 70
Input - Net (kW) 27.5 36 45 54 63
Tube Length (mm) 12802 18898 18898 24994 24994
Overall Heater Length (mm) 13462 19558 19558 25654 25654
Weight (kg) 82 110 110 136 136
Heated Area (m
2
) 50-315 65-420 80-525 100-630 110-740
Minimum Installation Height (mm) 3500 3500 3500 3500 4600
Recommended Installation Height
(mm) 3500 3600 3900 4200 4800
BH55ST*
BH70DL/EF
18.8 U-Tube Heater
BH15UT
BH20UT
BH25UT
BH25UT/EF
BH30UT
BH30UT/EF
BH35UT
BH35UT/EF
BH40UT
BH40UT/EF
BH45UT
BH45UT/EF
Input - Gross (kW) 15 20 25 30 35 40 45 50
Input - Net (kW) 13.5 18 22.5 27 31.5 36 40.5 45
Tube Length (mm) 3531 5055 5055 6579 6579 6579 8103 8103
Overall Heater Length (mm) 3822 5346 5346 6870 6870 6870 8394 8394
Weight (kg) 41 54 54 65 65 66 96 96
Heated Area (m
2
) 20-160 30-210 40-265 50-315 55-370 65-420 70-475 80-525
Minimum Installation Height (mm) 3500 3500 4000 4700 5000 5000 5000 5000
Recommended Installation Height (
mm) 3500 3600 4000 4700 5000 5500 6700 7600
73 of 75
BH50UT
BH50UT/EF
BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL
Fan
Damper
Swirler*
Plan View
Reflector
171 mm
End View
Internal Swirler*
273 mm
317
mm
Tube Length
Tube Length
Fan Tub e
U-Tube
Plan View
Fan
Burner Tube
Burner Tube
100 mm
100 mm
Damper
*Swirler must always be located in Fan Tube.
367
mm
457 mm
Weld Spot
Weld Spot
18.9 Burner Specifications
Figure 37: Linear and U-Tube Specifications
18.9.1 Standard
Burner Specifications
Burner Airplate
ID Number
Jet Numbers Natural G20 & 25
Jet Numbers Propane/Butane
Jet Numbers Pressure Couple
Gas Consumption**
Natural G20 (m
Gas Consumption**
Natural G25 (m
Gas Consumption**
Propane (m
Gas Consumption**
Butane (m
Governor Pressure
Butane (mbar)
3
Governor Pressure
Butane (in wg)
Governor Pressure
Propane (mbar)
Governor Pressure
Propane (in wg)
3
/h)
3
/h)
3
/h) [kg/h]
/h)
BH15 BH20 BH25 BH30 BH35 BH40 BH45 BH50 BH55*
20 15 12 6 7 9 10 11 19
#30 3.8 mm #19 4.7 mm #9 #3 #2 B
E
6.8 mm (G25)
#46 2.3 mm #37 #33 3.1 mm 3.3 mm #29 #26 #24
1.95 mm 2.25 mm 2.5 mm 2.7 mm 2.9 mm 3.2 mm 3.25 mm 3.4 mm -
1.43 1.91 2.38 2.86 3.36 3.81 4.29 4.77 5.25
1.66 2.22 2.77 3.32 3.88 4.43 4.99 5.54 6.09
0.56
[1.07]
0.75
[1.43]
0.94
[1.79]
1.13
[2.15]
1.32
[2.50]
1.51
[2.86]
1.69
[3.22]
1.88
[3.58]
2.07 [3.94]
0.43 0.57 0.72 0.86 1.00 1.15 1.29 1.43 1.57
21.4 19.7 19.2 17.4 18.2 17.9 16.9 18.4 18.3
8.6 7.9 7.7 7.0 7.3 7.2 6.8 7.4 7.3
26.1 26.1 26.1 27.4 26.1 28.6 28.6 26.1 26.1
10.5 10.5 10.5 11.0 10.5 11.5 11.5 10.5 10.5
*Only available in Multiburner. **Based on Gross Caloric Value.
Natural G20: 8.7 mbar 3.5 in wg
Natural G25: 11.1 mbar 4.5 in wg
Natural G25 BH 55*: 9.5 mbar 3.8 in wg
74 of 74
SECTION 18: SPECIFICATIONS
18.9.2 EF Burner Specifications
BH25/EF BH30/EF BH35/EF BH40/EF BH45/EF BH50/EF
Burner Airplate ID Number 14565610
Jet Numbers - Natural G20 #20 #16 #9 #5 #2 B
Gas Consumption** - Natural G20 (m
3
/h) 2.38 2.86 3.36 3.81 4.29 4.86
**Based on Gross Caloric Value.
75 of 75
Infrared Heating
Maintain clearance
to the side and
clearance below
the heater from vehicles
and combustible materials.
www.rg-inc.com Printed in U.S.A. P/N 91037912 Rev. H
Attach this information to a wall near the ROBERTS GORDON
®
heater.
Read the Installation, Operation, and Service Manual thoroughly before installation, operation, or service.
Know your model number and installed configuration.
Model number and installed configuration are found on the burner and in the Installation, Operation and Service Manual.
Write the largest clearance dimensions with permanent ink according to your model number and configuration in the open spaces below.
OPERATING INSTRUCTIONS
1. STOP! Read all safety instructions on this information sheet.
2. Open the manual gas valve in the heater supply line.
3. Turn on electric power to the heater.
4. Set the thermostat to desired setting.
1. Set the thermostat to off or the lowest setting.
1. Set the thermostat to off or the lowest setting.
2. Turn off electric power to the heater.
3. Turn off the manual gas valve in the heater supply line.
4. Call your registered installer/contractor qualified in the
installation and service of gas-fired heating equipment.
IF THE HEATER WILL NOT OPERATE, TO ENSURE YOUR SAFETY,
FOLLOW THESE INSTRUCTIONS TO SHUT DOWN YOUR HEATER
Fire Hazard
Keep all flammable objects, liquids and vapors the minimum
required clearances to combustibles away from heater.
Some objects will catch fire or explode when placed close to
heater.
Failure to follow these instructions can result in death, injury
or property damage.
TO TURN OFF THE HEATER
Service Telephone: +44 (0)121 506 7709
Service Fax: +44 (0)121 506 7702
E-mail: uksales@rg-inc.com
E-mail: export@rg-inc.com
Roberts-Gordon LLC
1250 William Street
P.O. Box 44
Buffalo, NY 14240-0044 USA
Telephone: 716.852.4400
Fax: 716.852.0854
Toll Free: 800.828.7450
WARNING
Roberts-Gordon Europe Limited
Unit A, Kings Hill Business Park
Darlaston Road, Wednesbury
West Midlands WS10 7SH UK
Telephone: +44 (0)121 506 7700
Fax: +44 (0)121 506 7701
®
Installation Code and Annual Inspections:
All installation and service of ROBERTS GORDON® equipment must be performed by a contractor qualified in the installation and service of equipment sold and supplied by Roberts-Gordon and
conform to all requirements set forth in the ROBERTS GORDON
®
manuals and all applicable governmental authorities pertaining to the installation, service and operation of the equipment. To help
facilitate optimum performance and safety, Roberts-Gordon recommends that a qualified contractor conduct, at a minimum, annual inspections of your ROBERTS GORDON
®
equipment and
perform service where necessary, using only replacement parts sold and supplied by Roberts-Gordon.
Further Information: Applications, engineering and detailed guidance on systems design, installation and equipment performance is available through ROBERTS GORDON® representatives.
Please contact us for any further information you may require, including the Installation, Operation and Service Manual.
This product is not for residential use.
© 2009 Roberts-Gordon LLC All rights reserved. No part of this work covered by the copyrights herein may be reproduced or copied in any form or by any means – graphic, electronic, or mechanical, including photocopying,
recording, taping, or information storage and retrieval s
ystems – without written permission of Roberts-Gordon LLC.
Loading...