Detroit Radiant Products HLV Series User manual

•
Tube Heater Vacuum System Installation, Operation, Maintenance and Parts Manual
A WARNING: This heater must be installed and serviced by trained gas installation and service personnel only!
Improper installation, adjustment, alteration, service or maintenance can cause propertydamage, injury or death.
Readthe installation, operating andmaintenanceinstructions thoroughlybeforeinstalling
or servicing this equipment.
Protect
yourself andothers by observing allsafety information. Retain instructions forfuture reference.
HLVSERIES
TUBE HEATER
VACUUM SYSTEM
Description
Vacuum type tube heaters are negative pressure gas-
fired infrared heaters designed to provide comfort
heat. They consist
of four (4) main components: a
burnercontrol box, radiant tube, reflector assembly,
and vacuum exhauster. The heaters are typically
suspendedfrom the ceiling by chains and controlled
bya thermostat. Theycan be installed eithervented
orunvented, and mayuse outside airforcombustion
if necessary. The radiant tube may be installed
in
different configurations depending on the heating
requirements.
FOR YOUR SAFETY
Do not store or use gasoline or other flammable
vapors andliquids
in the vincinity of this or anyother
appliances.
FOR YOUR SAFETY
What to do if you smellgas:
Do
not try to light anyappliance.
Do
not touch any electricalswitch; do not
use anyphone in your building.
Immediately call
your gas supplierfrom
a neighbor'sphone. Follow the
gas
supplier's instructions.
If you cannotreach your gas supplier,
callthe fire department.
• ·These heaters use infrared energyto heat spaces.
· When heat
is required, the burnercontrol box ignites
a gas/airmixtureand the vacuum pulls the hotgases
into th~ radiant tube. As the gases pass through the
assembly, the tubing is heated and emits infrared,
which
is then directed toward the floor by reflectors.
This
is known as primary infrared and is absorbed
bythe floor, objects and people in the space,raising
theirtemperatures. They
in turn reradiate this heat,
known
as secondaryinfrared, to create acomfortzone
atthe floorlevel. This is how tube heaters can heat
A. WARNING/
In locations used for the storage of combustible
materials, signs mustbe posted to specifythe maximum
permissible stacking height
to maintain the required
clearances from the heater
to the combustibles. Signs
must eitherbepostedadjacent
to the heaterthermostats
or in the absence of such thermostats in a conspicuous
location.
CONSIGNES DE SE.CUR/TE
large spaces without having to provide primary Sivous sentez une odeurde gaz:
infrared for every square foot of area. However, if
the goal is to spot heat a small area within a large
space, only the primary infrared makesthis possible.
Vacuum tube heaters are design certified for use in
industrial and commercial buildings, such as
warehouses, manufacturing plants, aircraft hangars
and vehicle maintenan~e shops. No heatermay be
used in a class 1 or-class"2 explosive environment.
Unless otherwise indicated, they are not certified for
residential use
or whereflammable gases orvapors
1. Ouvrez/es fenetres.
2. Ne touchezpas auxinterrupteurs electriques.
3. eteingnez toute flamme nue.
4. Contactezimmediatement votre compagnie de gaz.
II estinterdit d'utiliser des liquides inflammables ou
degageant des vapeurs inflammables, aproximite
de toutappareilfonctionnant au gaz.
• are generally present, such as spray booths. Printed
in U.S.A.
LIOHLV-1M-11/02 (MWG)
© Detroit Radiant Products Co.
21400 Hoover
Rd., Warren, Ml 48089
T [phone] F. [phone]
http://www.reverberray.com

Tube HeaterVacuum System Installation, Operation, Maintenance and Parts Manual
Tube HeaterVacuum System
Warnings
Detroit Radiant Products Company cannot anticipate every use which may be made of their heaters.
Checkwith your local fire safety authority ifyou have questions about local regulations.
This infrared heater
is designed for use in industrial and commercial buildings such as warehouses,
manufacturing plants, aircraft hangars,service garages, etc.
Maintain all clearances to combustibles at all times!
See page 5 for clearance to combustibles guidelines.
WARNING!
This heater must be installed and serviced by
trained gas installation and service personnel only.
Read and understand these instructions thoroughly
before attempting to install, operate or service this
heater. Failure to comply could result
in personal
injury, asphyxiation, death, fire, and/or property
damage. Retain these instructions for future
reference.
WARNING!
This is not an explosion-proofheater. Where there
is the possibilityofexposure to flammable vapors,
consult the local fire marshal, the fire insurance
carrier and other authorities for approval
of the
proposed installation.
2
WARNING!
NOT FOR RESIDENTIAL USE!
Do not use in the home, sleeping quarters,
attached garages, etc.
WARNING!
Do not operate heater with any part bypassed,
with any part failed or
in any scenario that may
compromise safety.
IMPORTANT!
Any alteration of the system or of factory-
authorized components specified in this manual
or by Detroit Radiant Products Company voids
all certification and warranties.

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Tube HeaterVacuum System Installation, Operation, Maintenance and PartsManual
Table of Contents and Certifications
1. SAFETY INFORMATION .............................................................................................. 4
2. DESIGN .............................. .. ..... ... .. ...... .... .... ...................................... .. ..................... .. .. 6
2.1 Pre-Design .............................. .. ........ ... . .. ........ .. .. .............................. .. .......................... 6
2.2 Design for Non-Condensing System ......
.. ................ .. ...... ... ......................................... .. 7
2.3 Design for Condensing Systems .............................. .. .... ......... .. .. . .. .......... ... ... . .... ... .... .. . 8
2.4 Definitions ........
.. .................................. .. .......... .. .......... .. ........ .. ........... .. ..... ... .. .............. 10
2.5 Vacuum Pump Application .......... .. ..... .. ................... ... ............ ... ........... .. ... .................... 11
2.6 DamperApplication ................. ... ..................... .. ............................................ ... ............. 12
3. INSTALLATION .................... ... ........ .... ...... ... ............................. .. ................................ .. 13
3.1 Pre-Installation ... . ... ..... .. ....................................................................... ...... .... .... .. ......... 13
3.2 Vacuum Pump Assembly & Mounting ................................................. .. ...................... .. 15
3.3 Tube & BurnerBox Mounting ........................................................................................ 15
3.4 Baffle Assembly .. . .. . ... ....... .. ....... ... ................ .. .. .............. .. . .. ... ..... ... .... .. ........................ 17
3.5 ReflectorAssembly... .. ............. .. ........ .. .................................. .. ................................... .. 18
3.6 Reflector Accessories .. ... ...................... .. .............................. ... ................................... .. 19
3.7 Flue Venting for Non-Condensing Systems ............................. .. .......... .. ........................ 20
3.8 Flue Venting for Condensing Systems ............... .. ...... .. .............................. .. ................. 21
3.9 Combustion Air Intake..................... .. ... ............. .. ............. .. .. .. .. .. .................... .. ............. 22
3.10 Gas Supply...... ... ......... .. .... .. ............ ... .. .............. ... .. ............ .. ... ......... ... ........................ 23
4. OPERATION ...................................................................................................... 25
4.1 Electrical Requirements .......... ... ....... .. .................................... .. .... .. .............................. 45
4.2 Lighting Instructions ......................... .. .. ... ...... ... ...... .. ...... ... . .. ................... ... .... .. ............. 25
4.3 Shutdown Instructions ... ...................... .. ........................... .. ................. .. ......... ... ............ 25
4.4 Theory ofOperation ..... .. .. ...... .. ........................................................... .. ................ .. ..... .. 25
4.5 System Start-Up & DamperSetting ...... .......................... .. ...... .. .................................... 29
5. MAINTENANCE ................ .... .. ...................................................... .. .,...... .. .......... 30
5.1 Troubleshooting Chart .. .. ............................................ ... ............. .. ............................... .. 31
5.2 Troubleshooting Flowchart ............................................ .. .. . ... ......... .. ... ...... .. ....... .. .. .. ... .. 32
5.3 HLV Parts List .............................................................................................................. 34
6. LIMITED WARRANTY .......................................................... .. .............................. 36
Approval Standards and Certfications
Detroit Radiant Products units comply with or are certified by the following organizations or standards:
American National Standards (ANSI Z83.6 and Z83.20)
Occupational Safety and Health Act (OSHA)
CSA International (CSA)
National Standards ofCanada
3

Tube HeaterVacuum System Installation, Operation, Maintenance and Parts Manual
Tube HeaterVacuum System
The following mustbe reviewed before installing this heater.
1. SAFETY INFORMATION
jA CAUTION j Check.the CSArating label on the heater
to venfy the proper gas to be used.
Checkthe otherlabels
on the heaterto verify propermounting
and clearance to combustibles.
The installation ofthis heatermust conform with local building
codes
or, in the absence of local codes, with the National
Fuel Gas Code, ANSI Z223.1 (NFPA 544) (latest edition).
Applications
in Canada must conform to CAN/CGA B149.1
and 2 codes and Canadian Electrical Code C22.1 (latest
edition).
IMPORTANT NOTE
HANGARS
The installation of this heater in aircrafthangars mustconform
with the Standard forAircraft Hangars, ANSI/NFPA409 (latest
edition). The heatermust be installed atleast 10
ft .above the
upper wing surfaces and engine enclosures
of the highest
aircraftwhich might
be stored in the hangar. In areas adjoining
the aircraft storage area, the heaters must be installed at
least 8 ft. above the floor. The heaters must be located
in
areas where they will not be subject to damage by aircraft,
cranes, movable scaffolding orother objects.
ELECTRICAL
The heater, when installed, must be electrically grounded in
accordance with the National Electrical CodeANSI/NFPA 70
(latest edition).
Unless otherwise indicated
on the AGAlabel (Chart 2 (C2)
or Chart3 (C3)), this infra-red heateris designed to operate
on standard BTU gas (either 1000 BTU ft3 for natural gas or
2500 BTU ft3 for propane gas) at elevations Oto 4000 feet
MSL (Sea Level). Under no circumstance is either the gas supply line or the
,€ ·
electrical supply line to the heaterto provide any
assistanc8' ·
in the suspension of the heater. ·
GARAGES
The installation of this heater in public garages must conform
with the Standard for Parking Structures, ANSI/NFPA 88A
(latest edition), or the Standard for Repair Garages, ANSI/
NFPA
888 (latest edition), and must be at least 8 ft. above
the floor (see page 5 for Clearances to Combustibles).
Applications
in Canada mustconform to the Canadian Electric
Code C22.1 (latest edition) when an external electrical source
is used.
The weight
of the heater must be entirely suspended from a
permanent part
of the building structure having adequate load
characteristics.
Neitherthe gas supply line, electrical supply line norsprinkler
heads shall be located within the minimum clearances to
combustibles as shown
in the Clearances to Combustibles
Chart
on page 5.
Signs should be posted in storage areas to specify maximum
stacking height allowed
in order to maintain clearances to
combustibles . DRP part #PLQ warning plaques are
recommended.
Detroit Radiant Products Company
21400 Hoover Road, Warren, Ml 48089
T. [phone] F. [phone]
http://www.reverberray.com
4
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Tube HeaterVacuum System Installation, Operation, Maintenance and Parts Manual
Safety Clearance Information
Clearancesto Combustibles
A WARNING!
In locations used for the storage of combustible
materials,
signs must be posted to specify the
maximum permissiblestacking height
to maintain the
required clearances from the heater to the
combustibles. Signs must eitherbe postedadjacent
to the heater thermostats or in the absence of such
thermostats
in a conspicuous location.
Forthe safe installation ofthis unit, consult the clearance to
combustibles chart. It contains clearances that must be
maintained.
IA WARNING I
Failure to comply with the stated clearances to
combustibles could result
in personal injury,
death and/or property damage.
TOP
TOP
t
~
BELOW
O"MOUNTING ANGLE o·w,1 SIDE SHIELD
BELOW BELOW
45"MOUNTING ANGLE o·
w,2 SIDE SHIELDS
NOTE: Infra-red heaters can cause discomfort to building
occupants ifthe heaters are mounted too low. Therefore, a
minimum mounting height must be observed, based upon
the clearance to combustibles and the specifi
ed minimum
mounting height. Also, am~ximum mounting heightfor each
heatershould be observed for effective radiant heating.
NOTE: See HLV Design Guide for Determination ofPublished
Clearances to Combustibles.
5
jAWARNINGI This heater should be
installed so that the minimum
clearances to combustibles, as marked on the
heater,
will be maintained from vehicles parked
below.
If vehicle lifts are present, ensure that
these clearances will be maintained from the
highest raised vehicle.
Clearances listed in the following table apply to individual
burners located
in the HLV system. Inspecteach burnerrating
label to ensure thatclearances are maintained
CLEARANCES TO COMBUSTIBLES {IN.)
MODEL NO. MOUNTING SIDE TOP
BELOW
ANGLE FRONT BEHIND
HLV 50
(N ,P) o• 9 9 4
47
45° 39 8 10 47
W /1 side shield O" 29 8 4 47
W/2 side shields
O"
9 9 4 47
20
ft from burner O" 7 7 4 30
HLV
60 -HLV 75 (N,P)
o• 9 9 4
48
45° 39 8 10 48
W/1 side shield
o• 29 8 4 48
W/2 side shields O" 9 9 4 48
20 ft from burner
O" 7 7 4 30
HLV
BO (N,P)
O"
11
11 4 48
45° 39 8 10
48
W/1 side shield
o•
29 8 4 48
W/2 side shields O' 16 16 4 48
20
ft from burner O'
7 7 ' 4 30
HLV 90 (N,P)
O"
12
12 4 54
45°
39
8 10 54
W/1 side shield
o•
29 8 4 54
W 12 side shields
0'
16 16 4 54
20
ft from burner O' 7 7 4 30
HLV 100
(N , P)
0'
14
14
4
66
45° 39 8 10 66
W
/1 side shield
o•
29 8 4 66
W/2 side shields 0' 16 16 4 66
20 ft from burner
O"
7 7 4 30
HLV
110- 1 25(N,P) O"
18 18 4 72
45° 58 8 10 72
W/1 side shield O' 42 8 4 72
W/2 side shields
0'
20
20
4 72
20
ft from burner O' 7 7 4 30
HLV 140 -HLV 150 (N,P) 0' 24 24 6 81
45°
58 8 10 81
WI1 side shield
0'
42 8 6 81
W/2 side shields O"
30 30 6
81
20 ft from burner O'
11 11
6 44
HLV 170 -HLV 175 (N,P)
o•
34 34 6
92
45° 63 8 10 92
W /1 side shield 0' 50 8 6 92
W/2 side shields
0'
30 30 6 92
20 ft from burner O"
11
11 6 44
HLV 180 -HLV 200 (N ,P)
o• 41
41 6 94
45° 63 8 10 94
W/1 side shield
o•
54 8 6 94
W/2 side shields
o• 30 30 6 94
21 ft from burner O'
11
11
6 44

Tube HeaterVacuum System Installation, Operation, Maintenance and Parts Manual
Tube HeaterVacuum System
2. DESIGN
2.1 Pre-Design for Condensing and Non-Condensing Systems
1) The HLV can be a Non-condensing system or a
condensing system. Afterthe pre-design section
is read,
go to the appropriate section for the desired system. If it
is uncertain what type of system is to be used, start off
by going to the condensing section (2.
3) and if the
completed design does notrequire condensing pipe, then
by default, the system will
be a non-condensing system.
2) All non-condensing systems must be on a ~
temperature zone. If two temperature zones are required,
the system will
be a condensing system thus continue to
section 2.3.
3) Determine the heat load required for the building.
4) Mounting height and coverage are the two critical variables
in selecting the proper size burners and the number of
burners for a layout.
a) The mounting height ofthe system will determine the
largest size burner that can be used. Refer to the chart
on page 6 of the HLV Design Guide for recommended
mounting height information.
b) During the design phase it may be discovered that
the number
of burners is not enough to achieve proper
coverage, it may be necessaryto use a larger number of
smaller burners.
5) When determining the location of the system, keep in
mind clearances to combustible materials, lights, sprinkler
heads, overhead doors, storage areas with stacked
materials, gas
and electrical lines,parked vehicles, cranes
and any otherpossible obstructions orhazards. Adequate
clearance around air openings leading into the combustion
chamber and accessibility for service must be provided.
Refer to the Warnings, Cautions and the Clearances to
Combustibles Chart
on the previous page and on the heater
to verify that a safe installation condition exists.
6) Section 2.4 lists the 'System Design Parameter'
definitions. These definitions will need to be referenced
for system design.
'
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Tube HeaterVacuum System Installation, Operation, Maintenance and Parts Manual
Design
2.2 Design for Non-Condensing Systems
The system tube lengths are determined by the gas input (BTU/ H) . The chart below indicates the system design parameters for
each burner model used
in a system. Elbows and tees have already been accounted for, therefore do not add them when
calculating tube lengths.
Designing a non-condensing system can
be quite simple ifthe following four steps are read carefully. Along with these four
steps, an understanding ofthe design definitions
is critical. Refer to section 2.4 for definitions and illustrations.
1) The best approach to designing a system is to start off
by actually laying out adesign without concerning oneself
with the system designparameters. In using this approach
it
is ideal to place the burners where desired and the
vacuum pump where desired. Referring to the Typical
Layouts' section
of the HLVDesign Guide may be helpful.
2) Nowthatthere is a tentative layoutforthe system, make
sure that each run
in the system meets the 'calculated
minimum run' criteria. Calculated
minimum run is
figured by adding the total 'single flow' plus one-half of
the common clow (refer to section 2.4 for illustrations
and definitions). If the system does not meet the
CalculatedMinimum Run, add length to the run to make
sure all burners meet calculated
minimum run.
3) Refer to the chart below for "Non-condensing system
design parameters" and check the 'calculated maximum
run' for every burner. It will
be necessary to make the
system a condensing system or shorten a run if the
calculatedmaximum run is exceeded. Referto section
2.4 for examples
to determine 'calculated maximum run'.
4) Check to make sure the following applies for non-
condensing systems only.
a) A maximum of two elbows per run is allowed in a
system.
b) A maximum ofthree intersections (tees or crosses)
are allowed
in asystem (per vacuum pump).
c) A reflector overan elbow or intersection
is required if
20 feet or less from the burner.
Design Parameters for Non-Condensing Systems
(Refer to Section 2.4 For Chart Definitions)
Minimum Distance Calculated Calculated
HLV Burner from Burner
to first Minimum
Run
Maximum Run
Model Elbow or Intersection (feet) (Distance
is of Actual
(feet) Radint Pipe) (feet)
50, 60
10
30 45
75 , 80 10 35 50
90, 100 10 40 55
110, 125 10 45
60
140, 150 15 50
65
170, 175, 180 15 55 70
200 ·
20 60 75
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Tube HeaterVacuum System Installation, Operation, Maintenance and Parts Manual
Tube Heater Vacuum System
2.3 Design for Condensing Systems
The system tube lengthsare determined by the gas input(BTU/H). The chart below indicates the system design parameterfor
each burner model used
in a system. Elbows and tees have already been accounted for, therefore do not add them when
calculating tube lengths.
Designing a condensing system can be quite simple ifthe following sixsteps are read carefully Along with these sixsteps,
an
understanding of the design definitions is critical. Refer to section 3.6 for definitions and illustrations.
1) The best approach to designing a system is to start off by
actually laying out a design with out concerning oneself
with the system design parameters.
In unsingthis approach
it is ideal
to place the burners where desired and the vacuum
pump where desired. Referring to the Typical Layouts
section 3.2 may be helpful.
2) Nowthat there is a tentative layout for the system, make
sure that each run
in the system meets the 'Calculated
Minimum Run' criteria. Calculated minimum run
is
figured by adding the total 'Single Flow' plus one-half of
the Common Flow (referto section 2.4 for illustrations and
definitions). Ifthe system does not meet the calculated
minimum run, add length to the run to make sure all
burners meet calculatedminimum run.
3) Determine the calculated starting point of the
condensing run. Look up each burner size on the chart
to determine at what point
in the 'calculated run' where
condensing pipe must begin. Once the condensing pipe
begins
in a run, all intersections and elbows thereaftermust
be condensing pipe as well. Dothis for each individual run.
Ifnone
of the runs are long enough to use condensing pipe
then the system
is regarded as a 'non-condensing' system.
3a) Alternate approach to step 3 if simulating an in-line design.
Ifdoing an in-line system,the tie- in burners mustbe at the
minimum distance to elbow(no more, no less). Reference
the Maximum Actual Distance between Tie-Ins to makeJi
sure the tie-in distance is not exceeded. Reference the'f l
StartingPoint of Condensing for 'SimilatedIn-Line'systems
and determine when the condensing pipe starts afterthe
lasttie-in. When using this approach, step
{does not apply.
Design Parameters for Condensing Systems
(Refer to Section 2.4 For Chart Definitions) Simulated in-line Systems
Calculated Maximum Actual
Minimum Distance Calculated Calculated Maximum Run Distance
between Starting Point of
HLV Burner from Burner to first Minimum Starting Point of (Including Tie-Ins for Condensing for
Model Elbow or
Run (feet) Condensing
Run
Condensing Pipe) 'Simulated In- 'Simulated In-Line'
Intersection (feet) (feet) Line' systems systems
(feet) (feet)
50, 60 10 30 45 85 35 30 ft After Last Tie-in
75, 80 10 35 50 95 40 30 ft After Last Tie-in
90, 100 10 40 55 105 45 30 ft After Last Tie-in
110, 125 10 45 60 110 50 40
ft After Last Tie-in
140, 150 15 50 65 120 55 40
ft After Last Tie-in
170, 175, 180 15 55 70 130 55 40 ft After Last Tie-in
200 20. C• 60 75 140
55 40 ft After Last Tie-in
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Tube HeaterVacuum System Installation, Operation, Maintenance and Parts Manual
(C"·. Design
,,
, f:.
4) Checkthe calculatedmaximum run for every burner. It is
usually recommended to shorten a run if the calculated
maximum run is exceeded. Refer to section 2.4 for
examples to determine 'calculated maximum run'.
6) Check to make sure the following applies forcondensing
systems only. Ifthese items are exceeded, contact the
factory for approval.
5) Iftwo differenttemperature zones are going to be used on
a system, where some burners will be on one thermostat
and the remainder of the burners will
be on a second
thermostat,the following guidelines must
be met.
a) At the point where the two different zones will have
burnersthat share common tubing, condensing pipe must
be used. The condensing pipe will start at this point and
continue through to the pump. See figure
2-1 for an
example.
Zone 1
a) A maximum of three elbows per run is allowed in a
system.
b) A maximum of six intersections (tees orcrosses) are
allowed
in a system (pervacuum pump).
c) A reflector overan elbow or intersection is required if
20 feet or less from the burner.
Condensing pipe
Points where zone
1 & 2 sharecommon
tubing. Condensing
pipe must begin
here.
Zone 2
-(!) -
Figure 2-1
9

Tube Heater Vacuum System Installation, Operation, Maintenance and Parts Manual
Tube Heater Vacuum System
Definitions
2.4 Definitions
Run -Thetotal actual length ofradiant pipe from the individual
burner boxto the exhauster.
Minimum Distance to Elbow or Intersection -The
minimum allowable distance from the burner box to the first
elbow
or intersection.
Single Flow-The radiant pipe in a run from the burner box
to the first intersection (tee or cross). Referto figure 2-2.
Common Flow -The radiant pipe in a run between the
first intersection (tee or cross) and the exhauster. 'Common
Flow' begins atthe point where two (2) ormore burners share
a common exchanger. Referto figure 2-2.
ISOLATION BOOT
20 FT
C
0:;:
Eo
E-
o LL
(.)
Single
Flow
30 FT
-JL
Figure 2-2
PRIMARYDAMPER
(Please read this important definition carefully/)
Calculated Run -Calculated run is determined by
adding thetotal 'single flow' plus one half of the 'common
flow'
of Pipe. For Example, if an actual run, has 30 feet
of 'single flow' and 20 feet of 'common flow', this equals
40 feet (30
ft. + one half of 20 ft.) of Calculated Run.
Referto figure 2-2.
Calculated Minimum Run - The minimum allowable
'calculated run'.
Calculated Starting Point ofCondensing Run -The point
in the 'calculated run' where condensing pipe must begin.
Refer to figure 2-3for
an example.
Calculated Maximum Run -The longestallowable 'calculated
run' from the burnerto the exhauster including the condensing
pipe.
I 40FT --+-Jr 40FT 4
c;,------=mr-r--------------7
"' ~OFT I t
HLV-75 +I HLV-75
I 40FT
Start point of /20 FT JJ
condensing J_
""----- VACUUM PUMP
Figure 2-3
In figure 2-3, a model HLV-75 starts it's condensing pipe at 50
cacluated feet (40 feet plus one-halfof 20 feet). The amount
of condensing pipe in this particular example is 20 ft.
-------------( ..
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Tube HeaterVacuum System Installation, Operation, Maintenance and Parts Manual
Design
PumpApplication
2.5 Vacu.um Pump Application
The following table indicates which vacuum pump should be
used for a system based on the specific BTU/H input. A system containing a HLV-150 burner and two HLV-100
burners would have a total system input of 350,000 BTU/H.
Therefore, this system requires a PB-9 vacuum pump as
indicated the table.
VACUUM TOTAL SYSTEM
PUMP INPUT RANGE
MODEL NO. (BTU/H)
NC-7 * 50,000 -150,000
PB-8 50 ,000 -275,000
PB-9 280,000 -545,000
PB-10A 550,000 -750,000
MAXIMUM
BURNERS
ON PUMP
2
5
6
6
The vacuum pump exhaustventing length must be between 2
feet and 25 feet. The maximum number
of elbows in the
exhaust vent
is two.
Isolation boots provided with the system must be installed
before the vacuum pump
on all systems.
*NC-7 IS FOR NON-CONDENSING SYSTEMS ONLY.
4" Vent ~
\
Use appropriate hardware
to attach to structure
/ Thn,aded Rod
~
Primary Damper
Isolation
_ Bo?
Support Plate
\ l
L _vacuum Pump Control Box
I
LTube & Reflector Hanger
w/ Chain Hanging Set
Vibration Isolators
Figure 2-4
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Tube Hea ter Vacuum System Installation, Operation, Maintenance and Parts Manual
Tube Heater Vacuum System
2.6 DamperApplication
All systems are provided with a prjmary damperwhich is placed before the vacuum pump. Due to variations in gas input and
radianttube length,secondary dampersshould be placed at various points as necessary to balance the system's exhaustflow.
A maximum
of six dampers persystem is allowed. The following are three typical examples of damperplacement:
Example #1 -Figure 2-5
A system containing two HLV-75 burners with equal lengths
of radiant tube running to the vacuum pumpfrom each burner.
This system required only a primary damper as shown
in
Figure 2-5.
ISOLAT ION BO OT
P RI MARY DAMPER
HLV-75 H
LV -75
30 FT . __J c:
Figure 2-5
Example #3. Figure 2-7
A system containing two HLV-75 burners with unequal le ngths
of radianttube running to the vacuum pump from each burner.
This system requires a primary damperat the vacuum pump
and a secondarydamperbefore the tee (HLV-T)
on the shorter
tube length as shown
in Figure 2-7.
12
Example #2 -Figure 2-6
Figure 2-6 shows a system containing a HLV-75 burner (gas
input
of 75 MBTU/H) and a HLV-100 burner(gas input of 100
MBTU/H) with equal lengths
of radiant tube running to the
vacuum pump from each burner. This system required a
primarydamperat the vacuum pump and a secondary damper
before the tee (HLV-T) serving the lowerMBTU/H heater.
SECONDARY DAM P~
H CV- 0 ~
VAC UU M P UM P
PRIMARY DAMPER
HLV-100
Figure 2-6
ISO LAT ION BOOT
SE
CO NDARY DAMPER
HL V-75 ~
4DFT. __J
SE CO ND AR .Y DA MP~~
HCV O ~
VAC UU M PUMP~
PRIMARY DAMPER f ISOLATION BOOT
I SECONDARY D AM PER
20 FT.
Figure 2-7 (

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.
Tube HeaterVacuum System Installation, Operation, Maintenance and Parts Manual
Installation
3. INSTALLATION
3.1 Pre-Installation
1) Verifythat all parts have been received by checking them
againstthe packing list. Ifanything is missing, notify the
Re-Verber-Ray representative orDetroit Radiant Products.
2) Check the AGA rating label on the burner to verify the
model number,the gas to
be used and that the clearances
to combustibles will be met.
3) Checkthe AGArating label on the vacuum pump to verify
that
it is adequate forthe gas input(BTU/H) ofthe system.
4) Identify the Alumi-Ti 10 ft. tube(s), and ensure that one
exists for each burner.
5) Following a layout drawing, determinethe location ofthe
suspension points forthe system
in relation to the building
structure. Ensure thatthe finished installation will conform
6) Each system is supplied with the necessarywire hangers
for suspending the burner, radiant tubing and reflectors
(see Figure 3-1).
7) Use of 12 gauge, size #1, double-loop chain (THCS) is
recommended when hanging the system. Quantity3 per
burner, 1 pertube.
8) Mounting chains musthang perpendicularto the system.
9) The first 10ft. of tube downstream from a burnermust be
titanium alloy aluminized steel tube (Alumi-Ti). Identify
this tube and make sure it is installed with welded seam
down (see Figure
3-1 ).
A to the design requirements listed in the foreword, and
·~ . the Clearances to Combustibles Charton page
5.
First Tube (Alum-Ti)
downstream of the burner
box • Referred to as the ------------
Combustion Chamber
_. c__ _ Welded seam must be
positioned downward
Figure 3-1
13
175,000 · 225,000
models require a
stainless steel tube
clamp between the
first and second
10 foot radiant tubes.

Tube Heater Vacuum System Installation, Operation, Maintenance and Patts Manual
Tube Heater Vacuum System
INSTALLATION NOTES
l@I
MOUNT BURNER BOX LEVEL
Figure 3-2
IMPORTANT: Mountburner control box and chain sets level
to the ground. Do not rotate control box assembly.
IMPORTANT: 175,000through 225,000 BTU/H models must
be installed with a stainless steel tube clamp at
the~
joint of the exchanger between the first and second radiant
tubes.
IMPORTANT: Mount all tubes with welded seam facing
downward (see figure 3-3). Be sure to have swaged ends
pointed towards the exhaust end
of the heater.
NOTE: If windy conditions exist in the space around the
heater, it may be necessary to rigidly mount the heater to
prevent swaying.
It is recommended that threaded rod be
used for the two hanging points at the burnercontrol box (see
Figure 3-2). The remaining hanging points should use chains
to allowfor heater expansion.
NOTE: The tube clamps provided with the heater are pre-
assembled at the factory. If a clamp is dismantled, it is
importantthat upon reassembly the spacer
is properly inserted
(see Figure 3-7). The spacer's concave surface must face
the radiant tube. Incorrect spacer placement will result
in
shearing of the bolt when torqued to the recommended
specifications (40-60-lb. ft.).
14
WELDED SEAM MUST BE POSITIONED DOWNWARD
Figure 3-3
NOTE: When positioning heaters, keep
in mind the clearance
to combustible materials, lights, sprinkler heads, overhead
doors, storage areas with stacked materials, gas and electrical
lines, parked vehicles,
cranes and any other possible
obstructions
or hazards. Refer to the Warnings, Cautions
and the Clearance to Combustibles chart in the Safety
Information Section and on the heater to verify that a safe
installation condition exists.
-IMPORTANT -
Do not exceed the maximum vent length forexhausting
the heater. Consult sections 3.7 & 3.8 for guidelines.
Consult Combustion Air Requirements section on page 22.
Do not exceed the maximum duct length for fresh air
intake. Consult Air Intake Duct Chart on page 22.
Do notdrawfresh air into the heaterfrom an attic space.
There is no guarantee that adequate airwill be supplied.
All unvented heaters must use Part No. WVE-GALV vent
with flapper.
Once all ofthe safety precautions and design criteria are met,
the actual installation
of the heater may begin.
'· ·. ··
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Tube HeaterVacuum System Installation, Operation, Maintenance andParts Manual
Installation
3.2 Vacuum Pump Assembly and Mounting
1. Before mounting vacuum pump make sure that the
building structure and support brackets have adequate
load characteristics to supportthe pump. See chart
below.
Vacuum Pump Vacuum Pump
Model No. Weight (lbs.l
NC-7 20
PB-8 60
PB-9 67
PB-10A 73
2 Install vacuum pump as shown on plan drawing. Make
sure pump
is properly aligned with system. Allow an 8"
to 12" space for the isolation boot between the primary
damper and the vacuum pump inlet adapter. Refer
to
figure 3-6.
3. Mountthe inlet and outlet adapters to the vacuum pump
using self-tapping sheet metal screws, and seal thejoints
with high temperature sealant.
(The NC-7 does not require
an inlet adapter or isolation
boots. See figure 3-5 for illustration).
4. Install isolation boot with clamps provided.
See figure 3-6.
NOTE: The average soundlevel of the PB series vacuum
pumps is between 60 and 63 DBA. If the application
requires a lower sound level, relocation
of the vacuum
pump or a sound-deadening enclosure may be used.
Consult factory. Bar Joist Clip
Beam Clamp Wood Beam
Turnbuckle (Part#V-TB) is recommended on all condensing
pipe suspension points for ease
of slope adjustments.
Figure 3-4
15
3.3 Tube & Burner Box Mounting
1) Installation will begin at the vacuum pump. Condensing
Qin.§ has to be sloped downward at 1 /4" per 10 feet as it
approaches the pump (which
is upward at 1/4" per 10 feet
going from the pump). The standard radiant pipe wiil be
mounted level. Refertofigure 3-6 on the following page.
2) It may be easiest to start by mounting the first tube with
two (2) hangers spaced approximately 8 to 9 feet apart.
Every 10 foot tube thereafter should only need one ( 1)
hanger spaced atapproximately 8 to 9 feet apart. Refer
to figure 3-13
on page 18 for an example of hanger
placement.
3) It is critical that the tube mounting starts with the
run having the greatest amount
of condensing pipe.
If there is no condensing pipe in the system, start
with the longest run.
4) Clamps must be placed directly over the tube seams.
Referto figure 3-7.
5) After the first run is completely installed with all tubes,
dampers, elbows, intersections, etc
., install the run with
next greatest amount ofcondensing pipe, and so
on and
so on, until all runs are complete.
6) Forease of installation, it is recommended that reflectors
be mounted with each tube as it is installed (see
instructions
on reflector assembly.
7) Make sure all dampers have been properly placed in the
system
and temporarily set each damperto half-closed.
8) Adjust suspension hardware so that the tubes are in line
and straight. Adjust chain lengths until standard radiant
pipe
is level and the condensing pipe is at the proper
pitch.
It is recommended that the condensing pipe is
installed with turnbuckles (Part#V-TB) forease ofsloping
the tube(s). One V-TB needed per suspension point.
9) Heater must be independently supported. It must not
rely
on the gas orelectrical lines for any of its support.
10) Mountburnercontrol box level and be sure thatthe
burner sight glass
is visible from the floor.

Tube HeaterVacuum System Installation, Operation, Maintenance and Parts Manual
Tube Heater Vacuum System
Use appropriate hardware
to attach to structure
EXHAUSTER
ASSEMBLY
SAFETY
CHAIN
-POWER
BOX
NOTE: Isolation
boots are
not needed between the
damper and exhauster
assembly when using the
NC-7 model
exhauster on
an HLV system
/,be& Roflocto, Haoge,
Figure 3_5 w/ Chain Hanging Set
Primary Damper
Turnbuckle Part#V-TB is ~
/'";;.commended for all condensing
/ tube suspension points for ease
lsolatio
Boot
of slope adjustment.
CON E,S,NG ,,,. _,.,..._,,,.~ ' 1 "ANOAE :i
I All Condensing
pipe must be installed on 1/4"
per 10
foot downward slope toward exhauster. All
standard exchanger pipe
must be installed level.
1 ~~
lVacuum Pump Control Box Vibration Isolators
LTube & Refleclor Hanger
wl Chain Hanging Set
Figure 3-6
Swaged Tube / Tube Clamp
----..<i p--~m~+-- _- --=----_-___,,-,Ii
~Seam-
4 Clamp·
Correct Incorrect Figure 3-7
16
FLAT
SURFACE
CONCAVED
SURFACE
(

1/ ·
1;:
Tube Heater Vacuum System Installation, Operation, Maintenance andParts Manual
Installation
Baffle Assembly
3.4 Baffle Assembly & Installation Instructions
1. All systems include 99" ofbaffle. Baffle must be installed
as close to the pump as possibe
in the section of tubing
that allows insertion
of the entire length of baffle. Referto
figure 3-8.
NOTE: Install assembled baffle so thatthe key hole is inserted
first. All baffles must be placed vertically
in the radiant
tube/heatexchanger.
2. As shown in figure 3-9, assemble the baffle to the proper
length. Baffle assembly may be done on the ground or
assembled
in increments of 33" while being fed into the
tube.
Place male side (tab fittings) against female
side (keyhole) at a 90-degrce angle.
' /
Figure 3-8
~-~--
Insert one tab into keyhole
and slide fully to one side.
' '
1 l
! !
With tabs centered, rotate haffle
90-degrees to complete assembly. Center tabs. Repeat process
as
necessary to complete entire baffle.
Figure 3-9
17
/
® ·- -·
____ i_i
Place opposite tab through
keyhole and slide baffle back
towards the center position.
Place complete baffle into radiant tubes.
In stall baffle in the horizontal position.

Tube HeaterVacuum System Installation, Operation, Maintenance andParts Manual
Tube Heater Vacuum System
3.5 ReflectorAssembly
1. Mount reflector center support (RCS) at halfway point
between hangers (see figure 3-10).
2. Slide reflectors through wire hangers and overlap mating
reflector ends four inches for support (see figure 3-
11) .
Install sheet metal screws as shown.
3. Install elbow and tee reflector assemblies ifused.
4. Install elbow and tee reflector end-caps
at any exposed
ends
of the reflectors using four clips per end cap (see
figure3-12).
·- ,- -- ~ ,
16-18 In.
APPROX. APPROX. 4 IN.
-8"-10" 1 r- OVERLAP
RCS 1
=-.i APPROX.
HANGER 9-8ft.
Figure3-10
\
Reflector
Expansion
Joints
I
I
Note: Leave an expansionjoint in each
run of reflector, the preferred location
is between reflector one and two.
ANTI-RATILE SPRING
Figure 3-11
ANTI-RATTLE SPRING
CLIPS
..._____ __ _
REFLECTOR ENDCAP
Figure 3-12
~ F>~t ;",tallod tobo(s) "" be
7mounted using two hangers.
All tube(s) installed after the
first tube typically require
4 ""''"t'"'\ ~
Figure3-13
18
sheet metal screws at all
non.expansion joints.
\
Reflector
Expansion
Joints
I
I €
,
_;

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l
•
Tube HeaterVacuum System Installation, Operation, Maintenance and Parts Manual
Installation
3.6 ReflectorAccessories
Different applications will require the use of reflector
accessories. Available options include side shield extensions,
protective guards, elbow
or U shields, stainless steel reflectors
and drop ceiling panels. Consultthe Detroit Radiant Products
Accessory Guide fordetailed product information.
Side Shield Extensions. (Part No. SSE) Designed to direct
infra-red rays downward, away from sidewalls and
combustibles. This includes stored combustible containers,
heating between two large vehicles, crane rail motors, wiring
and other applications that require protection. Figure 3-14
details a side shield assemblyinstallation. Figure 3-15 shows
where to measure the new clearances from. Data forthese
clearances is available in the productinsertfor each series
of
heaters.
Figure3-14
TOP
BELOW
O"W/1 SIDE SHIELD O'
W/2 SIDE SHIELDS
Figure 3-15
19
Reflector Elbows (Part No . RE) are designed to fit atop an
elbow tube fitting (see figure 3-16).
"U" Reflectors (Part No. RU) coverTF1 B "U" Fittings. They
attach to standard reflectors covering the end of a "U"
configuration (seefigure 3-17). Reflectors
cannot be rotated
after installation
of this accessory.
Figure 3-16 Figure 3-17
Protective Guards. (PartNo. PG) Designed to attach to the
standard reflector.
They are typically used to prevent debris
or objects from becoming lodged between the radiant tube
and reflector.
Aluminum Egg Crate.(Part No. EC) is designed to fit into a
standard 2' x 4' ceiling tile opening.
Drop ceiling side panels
(Part No.
DCSP) are needed for complete installation of egg
crate. The side panels are used to direct infra-red rays away
from ceiling tiles.
Protective HeatShields (Part No. PHS) attach belowreflector
to shield
heat sensitive areas. Can only be used on 0°
mounted reflectors.
Stainless Steel Reflectors (Part No . SSR or SSRAO) are
also available for applications in harsh environments.
See
the Accessory Guide for product specific information.
li
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Tube HeaterVacuum System Installation, Operation, Maintenance and Parts Manual
Tube Heater Vacuum System
3.7 Flue Venting for Non-Condensing Systems
The following guidelines must be observed to ensure propersystem performance and safety.
• Check all applicable codes priorto installing any exhaust
vent. Local codes mayvary.
In the absence oflocal codes
see the National Fuel Code ANSI Z223.1 (NFPA 54) latest
edition. This system is designed to operate with a 4"
diameterexhaust vent.
Itis recommended that single-wall vent material be used.
The portion
of the vent which goes through combustible
material
in the building wall or roof must pass through a
dual insulated ventsleeve with
an approved 1inch clearance
thimble (see Figure 3-18 and 3-19).
• Vertical vents which exitthrough the roofshould be at least
2 ft.
higher than any portion of the building within a
horizontal radius of 10
ft. of where it passes through the
roof
of the building (see Figure 3-18). A standard rain cap
may be used to shield the vent.
• Theventtube length allowed must be between 2 ft. and
ft. Do not use more than two 90° elbows in the vent
models).
• Horizontal venting must
be terminated using a vent cap
with flapper {HLV-WVE) and havea 1 inch clearance from
combustible walls (see Figure 3-19). Through the
wall
venting shall not terminate over public walkways and must >
be at least 4 ft. below, 4 ft. horizontallyfrom, or 1ft. above<
any door, window orgravity air inlet into any building.
• All vent tubes must be sealed to prevent leakage
of flue
gas into building.
• Single-wall vent tube that is exposed to cold air must be
insulatedto prevent condensation.
• Vent cap must be protected from blockage
by snow.
• The building must be protected from damage by flue gases.·
• Single wall aluminum flue pipe -minimum 26 ga. €
,.,· ...
.
'
CO M3US'i': BLE Jl: OOf
SU!>P ORT RO D
('l'YP~ 4 )
ISO LATlO~
BOOT
Vi\ cuc.w :
E'-' U:'i?
.\Pl' :..ovr.o 1 IN.
:: :.t. AR.t.NC E ':" fl J~l aL3
:YP.! " B" V!-:h't'
S:JPFC::lf
PLATE:
Typical Vertical Venting for Non-Condensing Systems
Figure 3-18
20
\\ \\\ \ \\\
!
:oM c!US'.::l B1.C.
WALL
TY PE: "' B" VENT
CA'.'-W \. "E
Typical Horizontal Venting for Non-Condensing Systems
Figure 3-19