Roberts Gorden BH15 UT, BH20 UT, BH25 UT, BH30 UT, BH35 UT Installation & Servicing Instructions Manual
...
VVaaccuuuumm AAssssiisstteedd
SSiinnggllee-bbuurrnneerr aanndd
DDoouubbllee LLiinneeaarr SSyysstteemmss
IInnssttaallllaattiioonn && SSeerrvviicciinngg
IInnssttrruuccttiioonnss
Roberts-Gordon products are designed, tested, manufactured and cer-
tified to meet the highest technical standards in the infrared heating
industry. To ensure safe operation it is essential that systems using
Roberts-Gordon products be installed and commissioned in accor-
dance with the manufacturer’s instructions and other applicable
codes and regulations. Failure to inspect and maintain equipment
properly constitutes a serious safety hazard.
Roberts-Gordon Europe, Ltd.
12 Cobham Road,
Ferndown Industrial Estate
Wimborne, Dorset BH21 7PS
Telephone: +44 (0) 1202 896510
Fax: +44 (0) 1202 861397
http://www.rg-inc.com
© Copyright 1999 Roberts-Gordon P/N 170101UK Rev.F 8/99
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 to provide your
serviceman with information should it become
necessary.
0063
BH15 ST
BH20 ST
BH25 ST
BH30 ST
BH35 ST
BH40 ST
BH45 ST
BH50 ST
BH2 15 ST
BH2 20 ST
BH2 25 ST
BH2 30 ST
BH2 35 ST
BH15 UT
BH20 UT
BH25 UT
BH30 UT
BH35 UT
BH40 UT
BH45 UT
BH50 UT
Blackheat
®
TTaabbllee ooff CCoonntteennttss
11.. IInnttrroodduuccttiioonn .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..11
Read this section carefully. Improper installation,
adjustment, operation or maintenance constitutes a
serious health and safety hazard.
22.. SSppeecciiffiiccaattiioonnss .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..22
Material Specifications . . . . . . . . . . . . . . . . . . . . . . . . .2
Heater Specifications . . . . . . . . . . . . . . . . . . . . . . . . . .2
Venting Specifications . . . . . . . . . . . . . . . . . . . . . . . . .2
Suspension Specifications . . . . . . . . . . . . . . . . . . . . . .2
Controls Specifications . . . . . . . . . . . . . . . . . . . . . . . . .2
Clearances to Combustibles . . . . . . . . . . . . . . . . . . . . .3
Burner Specification . . . . . . . . . . . . . . . . . . . . . . . . . . .4
33.. UU-TTuubbee HHeeaatteerr IInnssttaallllaattiioonn .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..55
Health and Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Clearances To Combustibles . . . . . . . . . . . . . . . . . . . .5
Initial Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Final Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Heater Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Model BH15UT U-Tube Assembly . . . . . . . . . . . . . . . . .7
Model BH20UT/BH25UT U-Tube Assembly . . . . . . . . . .8
Model BH30UT/BH35UT/BH40UT U-Tube Assembly . .9
44.. LLiinneeaarr HHeeaatteerr IInnssttaallllaattiioonn .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..1100
Health and Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Clearances To Combustibles . . . . . . . . . . . . . . . . . . .10
Initial Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Final Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Heater Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Model BH15ST Assembly . . . . . . . . . . . . . . . . . . . . . .12
Model BH20ST/BH25ST Assembly . . . . . . . . . . . . . . .13
Model BH30ST/BH35ST/BH40ST Assembly . . . . . . .14
Model BH45ST/BH50ST Assembly . . . . . . . . . . . . . . .15
55.. DDoouubbllee LLiinneeaarr HHeeaatteerr IInnssttaallllaattiioonn .. .. .. .. .. .. .. .. .. .. .. .. ..1166
Health and Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Clearances To Combustibles . . . . . . . . . . . . . . . . . . .16
Initial Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Final Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Heater Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Typical Installation Layout . . . . . . . . . . . . . . . . . . . . .18
66.. GGaass aanndd EElleeccttrriicc SSuuppppllyy .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..1199
Gas Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Electric Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
External Wiring Diagram (Single Burner) . . . . . . . . . .20
External Wiring Diagram (Double Linear Burner) . . . .20
Internal Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . .21
77.. DDiisscchhaarrggee ooff CCoommbbuussttiioonn PPrroodduuccttss .. .. .. .. .. .. .. .. .. .. .. ..2222
General Requirements . . . . . . . . . . . . . . . . . . . . . . . .22
Flue Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Flueless Installation . . . . . . . . . . . . . . . . . . . . . . . . . .22
Ventilation Requirements . . . . . . . . . . . . . . . . . . . . . .22
Air Supply to Burner . . . . . . . . . . . . . . . . . . . . . . . . . .22
Air Supply Requirements . . . . . . . . . . . . . . . . . . . . . . .23
Common Duct . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
88.. OOppeerraattiinngg tthhee SSyysstteemm .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..2244
Detailed Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
System Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
User Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
99.. SSeerrvviicciinngg IInnssttrruuccttiioonnss .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..2255
Annual Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Component Removal . . . . . . . . . . . . . . . . . . . . . . . . . .25
Troubleshooting Flow Chart . . . . . . . . . . . . . . . . . . . .28
1100.. GGaass CCoonnvveerrssiioonn IInnssttrruuccttiioonnss .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..2266
Gas Conversion Kits . . . . . . . . . . . . . . . . . . . . . . . . . .26
Required Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Conversion Procedure . . . . . . . . . . . . . . . . . . . . . . . .26
Adjustment of Step-Flow Rate . . . . . . . . . . . . . . . . . .26
1111.. RReeppllaacceemmeenntt PPaarrttss .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..3300
1122.. TThhee BBllaacckkhheeaatt WWaarrrraannttyy .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..3322
1. Blackheat U-Tube and Linear Tube Configurations . . . .4
2. Bracket Suspension . . . . . . . . . . . . . . . . . . . . . . . . . . .5
3. Model BH15UT U-Tube Assembly . . . . . . . . . . . . . . . . .7
4. Model BH20UT/BH25UT U-Tube Assembly . . . . . . . . .8
5. Model BH30UT/BH35UT/ BH40UT U-Tube Assy . . . . . .9
6. Tube Clamp Package . . . . . . . . . . . . . . . . . . . . . . . . .10
7. Coupling Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . .10
8. Reflector Support Strap . . . . . . . . . . . . . . . . . . . . . . .11
9. Model BH15ST Assembly . . . . . . . . . . . . . . . . . . . . . .12
10. Model BH20ST/BH25ST Assembly . . . . . . . . . . . . . .13
11. Model BH30ST/BH35ST/ BH40ST Assembly . . . . . .14
12. Model BH40ST/BH50ST Assembly . . . . . . . . . . . . . .15
13. Typical Installation Layout (Dbl. Linear) . . . . . . . . . . .18
14. Typical Gas Line Installation . . . . . . . . . . . . . . . . . . .19
15. Typical External Wiring (Single Burner) . . . . . . . . . . .20
16. Typical External Wiring (Double Linear) . . . . . . . . . . .20
17. Burner Internal Wiring . . . . . . . . . . . . . . . . . . . . . . . .21
18. Flue Connection Detail . . . . . . . . . . . . . . . . . . . . . . . .22
19. Fresh Air Intake Spigot . . . . . . . . . . . . . . . . . . . . . . . .23
20. Air Supply w/Flue Configurations . . . . . . . . . . . . . . . .23
21. TEKNIGAS Valve Spring Replacement . . . . . . . . . . . .27
22. SIT Valve Detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
23. TEKNIGAS Valve Detail . . . . . . . . . . . . . . . . . . . . . . . .27
24. Burner Cup Position . . . . . . . . . . . . . . . . . . . . . . . . . .27
25. Troubleshooting Flow Chart . . . . . . . . . . . . . . . . . . . .28
26. Burner Internal Components . . . . . . . . . . . . . . . . . . .30
LLiisstt ooff FFiigguurreess::
1
SSeeccttiioonn 11.. IInnttrroodduuccttiioonn
THAT THE FOLLOWING POINTS HAVE BEEN CAREFULLY CONSID-
ERED.
1.4.1 Highly elevated installations:
1. Do you have the proper equipment to install and
maintain the system in the proposed location?
2. Do you have suitable equipment to access the system for maintenance after the system is installed?
3. Will the proposed location allow future access to
the system (i.e., will machinery be erected at a later
date that may make access to the system difficult
or impossible)?
NO
TE:
DDOO NNOOTT
lean ladders against a suspended
heater system. The BH unitary systems
employ a non-rigid attachment system that
will not support external apparatus.
4. Is the installed height within the parameters specified by the manufacturer?
1.4.2 Ventilation/Air Supply:
1. Will a flue be added to the system? If so, have you
checked the flue recommendations specified by
the manufacturer?
2. Is there an adequate supply of fresh air to support
combustion
1.4.3 Environment of the Facility:
1. Are there halogenated hydrocarbons* and/or other
combustible materials (i.e., cleaning agents, wood,
paper, rubber, etc.) within the area to be heated?- If
so, is there adequate exhaust ventilation and clearances?
NO
TE: In poorly vented, dusty areas, fresh outside
air should be provided to prevent premature
aging of the equipment.
In very dusty areas (i.e., woodworking facilities) regular dusting of the tubes and reflectors is essential as a fire preventative
measure.
1.4.4 Clearances to Combustibles:
1. Be sure that the clearances (as recommended by
the manufacturer) to halogenated hydrocarbons
and/or other combustible materials is observed.
2. Be sure that the manufacturer recommended
clearances between the heater system and vehicles parked below are maintained.
3. Be sure that signs are posted in storage areas to
specify maximum stacking height below the heater
system.
4. 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 risk of
* 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 may be invalidated if the heater is exposed to halogenated hydrocarbons.
11..11 WWHHAATT IISS AA BBLLAACCKKHHEEAATT UUNNIITTAARRYY HHEEAATTEERR SSYYSS-
TTEEMM??
The Blackheat BH is a gas-fired, vacuum-assisted, lowintensity radiant heating system. The BH was developed by Blackheat in partnership with
Roberts-Gordon, who pioneered low-intensity heating
in 1962 with their revolutionary CoRayVac system.
Please note that the Blackheat BH is available in several configurations. This manual describes the single
burner and double linear versions. The single burner
systems are available in both linear tube and U-tube
configurations. The double linear systems are comprised of two linear heaters with a common fan
assembly.
Optionally, HiLo models are available that incorporate
an extra solenoid valve to operate at a low (approx
80%) rate. Linked to a secondary thermostat, this provides a low rate at an intermediate setting below the
“off” stat. These models are described in manual
174900UK.
Multi-burner systems are covered in manual
172101UK. These systems manifold several heaters
to a single vacuum pump.
11..22 AABBOOUUTT RRAADDIIAANNTT HHEEAATT
Radiant heat is the most effective way of providing
comfortable environmental conditions in large open
spaces. Radiant energy operates like light, travelling in
straight lines and can be directed to specific individuals and areas which require heating. Comfort levels
are created when the radiant energy is absorbed by
the floor, plant and machinery, and lower walls without
initially losing energy to the air space between.
The objects which have absorbed the radiant energy in
turn release heat to the air and act as low power radiators. In this way, all useable energy is absorbed and
utilised in the occupied zone – the lower 2 metres –
not in the entire structure and roof space. Comfort
conditions are achieved using lower air temperatures
and as a result lower heat losses with a subsequently
lower fuel bill.
11..33 UUSSEE OOFF AACCCCRREEDDIITTEEDD IINNSSTTAALLLLEERR
Installation of this equipment must only be carried out
by a registered installer. (In the United Kingdom,
installer must be CORGI registered.)
11..44 GGEENNEERRAALL RREEQQUUIIRREEMMEENNTTSS
P
LEASE NOTE THAT FAILURE TO COMPLY STRICTLY WITH THESE
INSTALLATION AND SERVICING INSTRUCTIONS MAY INVALIDATE THE
LIMITED WARRANTY SET OUT IN SECTION
11
OF THESE INSTRUC
-
TIONS
.
BEFORE PROCEEDING WITH THE INSTALLATION OF THE
B
LACKHEAT UNITARY SYSTEM IT WILL BE HELPFUL TO CHECK
2
SSeeccttiioonn 22.. SSppeecciiffiiccaattiioonnss
22..22 HHEEAATTEERR SSPPEECCIIFFIICCAATTIIOONNSS
2.2.1 Sequence Controller
Fully automatic direct spark 100% shut off
ignition flame rectification module
2.2.2 Electrical
Rating: 230V, 50 Hz, single phase, 1 amp
Connection: 3 pin moulded plug
2.2.3 Gas Supply
Connection: Rc1/2 (1/2" BSP int)
Natural G20:
Minimum - Inlet 15.00 mbar (6 in wg)
Maximum - Inlet 50.00 mbar (20 in wg)
Natural G25:
Minimum - Inlet 17.50 mbar (7 in wg)
Maximum - Inlet 50.00 mbar (20 in wg)
LP Gas (propane or butane):
Minimum - Inlet 32.50 mbar (13 in wg)
Maximum - Inlet 50.00 mbar (20 in wg)
22..11 MMAATTEERRIIAALL SSPPEECCIIFFIICCAATTIIOONNSS
2.1.1 Combustion and Emitter Tubes
100 mm dia. 16 gauge heat treated aluminised
mild steel
2.1.2 Reflectors
NS3 H14 aluminium or 1.4016 2R stainless steel
(option)
22..33 VVEENNTTIINNGG SSPPEECCIIFFIICCAATTIIOONNSS
2.3.1 Fans
BH-15, 20, 25, 30 Model: Airflow 45BTFR
BH-35, 40, 45 Model: Torin AUO75871
BH-35, 40, 45, 50 Model: Magnetek JF1G
BH2-15, 2-20 Model: Airflow 45BTFR
BH2-25, 2-30 Model: Torin AUO75871
BH2-25, 2-30, 2-35 Model: Magnetek JF1G
NNoottee::
For Models BH-35, BH-40, BH-45, BH2-25
and BH2-30, the Magnetek fan is provided
as standard, and the Torin fan is available
as an alternate.
2.3.2 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.
22..44 SSUUSSPPEENNSSIIOONN SSPPEECCIIFFIICCAATTIIOONNSS
Galvanised straight link welded chain.
22..55 CCOONNTTRROOLLSS SSPPEECCIIFFIICCAATTIIOONNSS
Time switches, thermostats etc. can be wired into the
electrical supply. External controls supplied as an
optional extra.
3
UU-TTuubbee HHeeaatteerr
BH15UT BH20UT BH25UT BH30UT BH35UT BH40UT BH45UT BH50UT
Rate - Gross (kW) 15 kW 20 kW 25 kW 30 kW 35 kW 40 kW 45kW 50kW
Rate - Net (kW) 13.5 kW 18 kW 22.5 kW 27 kW 31.5 kW 36 kW 40.5kW 45kW
Heat Exchanger Length (mm) 3323 4843 4843 6363 6363 6363 7998 7998
Overall Heater Length (mm) 3406 5236 5236 6456 6456 6456 8328 8328
Weight (kg) 39 kg 54 kg 54 kg 65 kg 65 kg 66 kg 96kg 96kg
Heated Area (m
2
) 20-160 30-210 40-265 50-315 55-370 65-420 70-475 80-525
Min. Installed Ht (m) 3.5 m 3.5 m 4.0 m 4.7 m 5.0 m 5.0 m 5.0m 5.0m
Clearances to Combustibles
Above (mm) 100 100 100 100 100 100 100 100
Side (mm) 760 840 840 840 910 910 1140 1140
Below (mm) 1520 1600 1600 1600 1680 1680 1980 1980
DDoouubbllee LLiinneeaarr HHeeaatteerr
BH2-15ST BH2-20ST BH2-25ST BH2-30ST BH2-35ST
Rate - Gross (kW) 30 kW 40 kW 50 kW 60 kW 70 kW
Rate - Net (kW) 27 kW 36 kW 45 kW 54 kW 63 kW
Heat Exchanger Length (mm) 12802 18898 18898 24994 24994
Overall Heater Length (mm) 13630 19738 19738 25030 25030
Weight (kg) 82 kg 110 kg 110 kg 136 kg 136 kg
Heated Area (m
2
) 50-315 65-420 80-525 100-630 110-740
Min. Installed Ht (m) 3.5 m 3.5 m 3.5 m 3.5 m 4.6 m
Clearances to Combustibles
Above (mm) 100 100 100 100 100
Side (mm) 760 840 840 840 910
Below (mm) 1520 1600 1600 1600 1680
LLiinneeaarr HHeeaatteerr
BH15ST BH20ST BH25ST BH30ST BH35ST BH40ST BH45ST BH50ST
Rate - Gross (kW) 15 kW 20 kW 25 kW 30 kW 35 kW 40 kW 45 kW 50 kW
Rate - Net (kW) 13.5 kW 18 kW 22.5 kW 27 kW 31.5 kW 36 kW 40.5 kW 45 kW
Heat Exchanger Length (mm) 6096 9144 9144 12192 12192 12192 15240 15240
Overall Heater Length (mm) 6685 9739 9739 12785 12826 12826 15876 16120
Weight (kg) 41 kg 55 kg 55 kg 68 kg 68 kg 68 kg 81 kg 81 kg
Heated Area (m
2
) 20-160 30-210 40-265 50-315 55-370 65-420 70-475 80-525
Min. Installed Ht (m) 3.5 m 3.5 m 3.5 m 3.5 m 4.6 m 5.0 m 5.0 m 5.0 m
Clearances to Combustibles
Above (mm) 100 100 100 100 100 100 100 100
Side (mm) 760 840 840 840 910 910 1140 1140
Below (mm) 1520 1600 1600 1600 1680 1680 1980 1980
Table 1. U-Tube Heater Specifications
Table 2. Linear Heater Specifications
Table 3. Double Linear Heater Specifications
4
Swirler
Fan Tube
PLAN VIEW
100 mm
254 mm
Heat Exchanger Length
Fan
U-Tube
Flanged Burner Tube
171 mm
273 mm
SIDE VIEW
PLAN VIEW
317 mm
100 mm
Heat Exchanger Length
Fan
Swirler
END VIEW
Figure 1. Blackheat U-Tube and Linear Tube Configurations
22..66 BBUURRNNEERR SSPPEECCIIFFIICCAATTIIOONN
BBuurrnneerr AAiirr PPllaattee
BH15 BH20 BH25 BH30 BH35 BH40 BH45 BH50
Identification Number: 14 15 12 6 7 9 10 11
GGaass CCoonnssuummppttiioonn **
BH15 BH20 BH25 BH30 BH35 BH40 BH45 BH50
Natural G20 (m
3
/h) 1.43 1.91 2.38 2.86 3.34 3.81 4.29 4.77
Natural G25 (m
3
/h) 1.66 2.22 2.77 3.32 3.88 4.43 4.99 5.54
Propane (m
3
/h) 0.56 0.75 0.94 1.13 1.32 1.51 1.69 1.88
Butane (m
3
/h) 0.43 0.57 0.72 0.86 1.00 1.15 1.29 1.43
GGoovveerrnnoorr PPrreessssuurree
BH15 BH20 BH25 BH30 BH35 BH40 BH45 BH50
Butane (mbar) 21.4 19.7 19.2 17.4 18.2 17.9 16.9 18.4
Butane (in wg) 8.6 7.9 7.7 7.0 7.3 7.2 6.8 7.4
Natural G20: 8.7 mbar 3.5 in wg
Natural G25: 11.1 mbar 4.5 in wg
Natural G20 Hi/Lo : 8.7/5.0 mbar 3.5/2.0 in wg
Natural G25 Hi/Lo : 11.1/6.5 mbar 4.5/2.6 in wg
Propane: 27 mbar 10.5 in wg
JJeett NNuummbbeerr
BH15 BH20 BH25 BH30 BH35 BH40 BH45 BH50
Natural G20 & G25
3.4 mm 3.8 mm 4.3 mm 4.7 mm 4.9 mm 5.4 mm 5.8 mm 6.0 mm
Propane/Butane
2.1 mm 2.35 mm 2.7 mm 3.0 mm 3.2 mm 3.4 mm 3.6 mm 3.75 mm
Pressure Couple
1.95 mm 2.25 mm 2.5 mm 2.7 mm 2.9 mm 3.2 mm 3.25 mm 3.4 mm
(*) Based on Gross Caloric Value
5
SSeeccttiioonn 33.. UU-TTuubbee HHeeaatteerr IInnssttaallllaattiioonn
3.1 HEALTH AND SAFETY
Blackheat cannot be responsible for ensuring that all
appropriate safety measures are undertaken prior to
installation; this is entirely the responsibility of the
installer. If Blackheat installs the appliance, it is
essential that the contractor, the sub-contractor, or
the owner indicate the presence of combustible materials or halogenated hydrocarbons anywhere in the
premises.
3.2 RELATED DOCUMENTS
Notwithstanding their limited scope, the appliance
should be installed in accordance with relevant
National Codes.
33..33 CCLLEEAARRAANNCCEESS TTOO CCOOMMBBUUSSTTIIBBLLEESS
Before proceeding with installation, ensure that
proper clearances to combustible materials will be
observed in the final installed position of the heater.
Clearance distances may be found in Section 2 of
these instructions.
33..44 IINNIITTIIAALL AASSSSEEMMBBLLYY
3.4.1 Prepare a work area corresponding to the size of
heater selected. The area should be clear and free of
debris. The manufacturers approved layout drawing
should be referred to so that the work area is convenient for the final system position.
3.4.2 Layout the appropriate Figure (3, 4, or 5 depending on
heater model) and keep it at a convenient place for
frequent reference. Pull out every part from the package and lay them out roughly at the position shown in
the assembly drawings. For BH35UT and BH40UT
make sure that the end of the fan tube with the swirler
points away from the U-bend. Keep the bolts and
screws at a convenient place for later usage.
3.4.3 With the suspension holes uppermost, slide the first
and intermediate brackets onto the fan and burner
tubes. For Model BH15, there is no intermediate
bracket. In the following assembly procedures, please
pay attention to this point.
3.4.4 Use two bolts to connect the U-bend and end bracket
together with the suspension holes uppermost. Insert
the plain ends of the burner tube and fan tube into the
two legs of the U-bend, and secure them with four
bolts.
3.4.5 Place intermediate bracket over the ends of the
tubes. Slide bracket onto tubes approximately 500
mm.
3.4.6 Join the burner tube and the remaining plain end tube
using the couplings and bolts provided. See section
4.4.5 for details.
3.4.7 Place the reflectors over the brackets as shown in the
assembly diagrams, and secure them using six screws
at each end. Seal the seam on top of the reflectors
using U-clips at least every 300 mm.
NOTE: Remove PVC coat from stainless steel reflec-
tors.
3.4.8 Insert the quick-links into the holes at the top edges of
the end, intermediate and first brackets.
3.4.9 Prepare the hanging chains at the position where the
heater will be located. Suspend the heating system as
recommended below. Use the center holes of the end
and first bracket to lift the heating system into position. Chains used should have 100 kg minimum
breaking load and preferably should be galvanised
finish. Figure 2 shows two suspension methods.
Method A is recommended because it provides a
semi-rigid suspension. Method B is acceptable.
Figure 2. Bracket Suspension
3.4.10 Never lift the assembled heater by passing ropes
around the reflector which would cause severe damage to the reflectors.
3.4.11 When angle mounting the heater, the burner tube
must be the tube nearest the floor and the fan tube is
always furthest from the wall (when suspended adjacent to a wall). It is recommended wherever possible
that the heater is suspended from above from
unequal length chains to effect the necessary angle
(maximum 20° from horizontal). Always allow extra
lengths of chain so that adjustment of angle can be
made to provide the best heat distribution for your
customer.
33..55 FFIINNAALL AASSSSEEMMBBLLYY
3.5.1 Place the gasket on the flange of the burner tube.
Carefully insert the flanged end into the burner box.
Secure the burner on the burner tube using the four
mounting bolts and washers. Use a spanner to tighten
the bolts evenly.
3.5.2 Place the fan assembly onto the end of the last fan
tube. Slide the fan assembly up to its stop. Tighten
the pinch screw on the assembly making sure that the
fan outlet is positioned as required.
Recommended
Suspension
Acceptable
Suspension
A
B
6
Table 4. Blackheat U-Tube Heater Parts List
Part No. Description BH15UT BH20UT BH25UT BH30UT BH35UT BH40UT BH45UT BH50UT
1 Burner Assembly with Gasket 1 1 1 1 1 1 1 1
2 S7340K Fan Assembly (includes flange) - Airflow 45 BTFR 1 1 1 1 - - - 3 S7104K Fan Assembly (includes flange) - Torin - - - - 1 1 1 4 S7320K Fan Assembly (includes flange)- Magnetek - - - - - - - 1
5 03051100 Burner Tube, 100 mm x 3048 mm 1 1 1 1 1 1 1 1
6 91409408 Heat Treated Aluminised Tube, 100 mm x 3048 mm - - - 2 2 2 2 2
7 S5127W Fan Tube, 100 mm x 3048 mm with 3048 mm Swirler - 1 1 1 1 1 1 1
8 S5140W Heat Treated Aluminised Tube, 1702 mm - 2 2 - - - 2 2
9 S5134W Fan Tube, 100 mm x 3048 mm with 2134 mm Swirler 1 - - - - - - -
10 S7302K Reflector Kit, 2439 mm, 4 pcs, Alum. - 1 1 - - - - 11 S7301K Reflector Kit, 3048 mm, 2 pcs, Alum. 1 - - - - - - 12 S7303K Reflector Kit, 3048 mm, 4 pcs, Alum. - - - 1 1 1 - 13 S7318K Reflector Kit, 2430 mm, 4 pcs, 3048mm Long, 2pcs,Alum - - - - - - 1 1
14 S7338K Reflector Kit, 2439 mm, 4 pcs, Stls Steel (optional) - 1 1 - - - - 15 S7337K Reflector Kit, 3048 mm, 2 pcs, Stls Steel (optional) 1 - - - - - - 16 S7339K Reflector Kit, 3048 mm, 4 pcs, Stls Steel (optional) - - - 1 1 1 - 17 S7440K Reflector Kit, 2430mm, 4 pcs, 3048mm Long 2pcs Stls Steel (optl) - - - - - - 1 1
18 07290000 U-Bend Assembly 1 1 1 1 1 1 1 1
19 C0176B Quick Link 6 9 9 9 9 9 12 12
20 07281000 First Bracket 1 1 1 1 1 1 1 1
21 07282000 End Bracket 1 1 1 1 1 1 1 1
22 07283000 Intermediate Bracket - 1 1 1 1 1 2 2
23 91107720 U-Clip Package (20 per package) 1 1 1 1 1 1 2 2
24 S7311K Screw Kit 1 1 1 1 1 1 - 25 S7317K Screw Kit - - - - - - 1 1
26 S7401K Support Bracket Package - - - 1 1 1 - 27 S7402K Support Bracket Package - - - - - - 1 1
28 01329600 Standard Coupling Assembly - 2 2 2 2 2 4 4
29 01329700 Coupling Lock - 2 2 2 2 2 4 4
30 S7402K Support Bracket Package 1 - - - - - 1 1
7
(1) Fan Assembly
(1) Fan Tube 100 mm x 3048 mm
with Swirler
(1) Burner Tube
100 mm x 3048 mm
(1) Burner Assembly
(1) Reflector Kit
(2) 3048 mm long pieces
U-Clips (package of 20)
(4) Quick Links
(1) End Bracket
(1) First Bracket
(1) U-Bend Assembly
(1) Gasket
(1) Swirler
(included in heating tube)
(12) Sheet Metal Screws
Reflector Support Bracket
(1) Nut
(1) U-Bolt
Figure 3. Model BH15UT U-Tube Assembly
c
a
b
a = 534 mm b = 356 mm c = 3050 mm
8
(1) Fan Assembly
(1) Burner Tube
100 mm x 3048 mm
(1) Burner Assembly
(1) Reflector Kit
(4) 2439 mm long pieces
(1) Swirler
(included in fan tube)
U-Clips (package of 20)
(6) Quick Links
(1) End Bracket
(1) Intermediate Bracket
(1) First Bracket
(1) U-Bend Assembly
(1) Gasket
(1) Fan Tube
100 mm x 3048 mm
with Swirler
(24) Sheet Metal Screws
(2) Stainless Steel Coupling
(2) Aluminised Tube
100 mm x 1829 mm
Figure 4. Model BH20UT/BH25UT U-Tube Assembly
c
a
b d
a = 534 mm b = 356 mm
c = 2440 mm d = 2440 mm
9
(1) Fan Assembly
(1) Fan Tube
100 mm x 3048 mm
with Swirler
(1) Burner Assembly
(1) Reflector Kit
(4) 3048 mm long pieces
U-Clips (package of 20)
(6) Quick Links
(1) End Bracket
(1) Intermediate Bracket
(1) First Bracket
(1) U-Bend Assembly
Gasket
(1) Swirler
(included in fan tube)
(24) Sheet Metal Screws
(1) U-Bolt
Reflector Support Bracket
(Typical 2 Places)
(1) Nut
(2) Stainless Steel Coupling
(1) Burner Tube
100 mm x 3048 mm
(2) Aluminised Tube
100 mm x 3048 mm
Figure 5. Model BH30UT/BH35UT/BH40UT U-Tube Assembly
c
a
b d
a = 534 mm b = 356 mm
c = 3050 mm d = 3050 mm
10
(1) Fan Assembly
(1) Fan Tube
100 mm x 3048 mm
with Swirler
(1) Burner Assembly
(6) Quick Links
(1) First Bracket
(1) U-Bend Assembly
Gasket
(1) Swirler
(included in fan tube)
(1) U-Bolt
Reflector Support Bracket
(Typical 3 Places)
(2) Stainless Steel Coupling
(1) Burner Tube
100 mm x 3048 mm
(2) Aluminised Tube
100 mm x 3048mm
(1) Nut
(1) Intermediate Bracket
(1) Intermediate Bracket
(2) Aluminised Tube
100 mm x 1702 mm
(2) Stainless Steel Coupling
(1) Reflector Kit
(2) 3048 mm long pieces
U-Clips (package of 20)
(24) Sheet Metal Screws
(1) Reflector Kit
(4) 2439 mm long pieces
(1) End Bracket
Figure 6. Model BH45UT/BH50UT U-Tube Assembly
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