Mestek RBS Series User manual

Form 43343350
Dec 2017
INSTALLATION AND OPERATION INSTRUCTIONS
OWNER / INSTALLER: For your safety this manual must be carefully and thoroughly read and
understood before installing, operating or servicing this heater.
INFRARED RADIANT TUBE HEATER
Single and Two Stage Push Through System (Positive Pressure)
Models:
R (B,S,M) S SERIES: (040, 050, 075, 100, 125, 150, 175, 200) –N1/L1/N2/L2
R (B,S,M) U SERIES: (040, 050, 075, 100, 125, 150, 175, 200) –N1/L1/N2/L2
!INSTALLER: This manual is the property of the owner. Please present this manual to the
owner when you leave the job site.
▲WARNING: Improper installation, adjustment, alteration, service, or maintenance can
cause property damage, injury or death. Read the installation, operation and maintenance
instructions thoroughly before installing or servicing this equipment.
IF YOU SMELL GAS:
FOR YOUR SAFETY
!DO NOT try to light any appliance.
!DO NOT touch any electrical switch; DO NOT use any
telephone in your building.
!IMMEDIATELY call your gas supplier from a neighbor's
telephone. Follow the gas supplier's instructions. If you
cannot reach your gas supplier, call the fire department.
DO NOT store or use gasoline or other
flammable vapors and liquids in the vicinity of
this or any other appliance.
!IMPORTANT: SAVE THIS MANUAL FOR FUTURE REFERENCE.
Mestek, Inc.
260 North Elm St. • Westfield, MA 01085
Telephone [phone] • Fax [phone] • www.mestek.com

Form 43343350
Dec 2017 -1-
TABLE OF CONTENTS
SECTION DESCRIPTION PAGE
1.0) Safety ................................................................................................................................................... 2
2.0) Installer Responsibility ...................................................................................................................... 2
3.0) General Information........................................................................................................................... 2
4.0) Minimum Clearances to Combustibles........................................................................................... 4
5.0) Specifications...................................................................................................................................... 5
6.0) Packing List......................................................................................................................................... 5
6.1) Accessory Packages ........................................................................................................................11
7.0) Typical Layouts –Straight and U Series .......................................................................................13
7.1) Typical Assembly Layout –Straight Series Shown .....................................................................14
8.0) Dimensions –Straight Series.........................................................................................................15
8.1) Dimensions –U Series ....................................................................................................................16
8.2) Heater Assembly / Joining of Tube Sections ...............................................................................17
9.0) Typical Suspension Methods ..........................................................................................................19
9.1) Angle Mounting of Heaters .............................................................................................................20
10.0) Assembly of Tube Sections.............................................................................................................20
10.1) Assembly of Extension Section ......................................................................................................21
10.2) Inserting Turbulators........................................................................................................................23
10.3) Adding Reflectors .............................................................................................................................24
11.0) Adding Optional 90º Elbow - Straight Seies Only ........................................................................25
11.1) Adding Optional Corner Reflector - Straight Series Only............................................................25
11.2) Adding 180º U-Bend - U Series Only ..............................................................................................26
11.3) Adding Optional U-Bend Reflector - U Series Only ......................................................................26
12.0) Attaching Burner Screen –200m BTU Models Only...................................................................27
12.1) Attaching Burner Control Box.........................................................................................................27
12.2) Connecting the TISS System ..........................................................................................................29
13.0) Gas Connections and Regulations.................................................................................................32
14.0) Instructions for Pressure Test Gauge Connection .......................................................................34
15.0) Electrical thermostat Connections ................................................................................................36
15.1) Single Stage (N5/L5) Internal and Thermostat Connections....................................................37
15.2) Two Stage (N7/L7) Internal and Thermostat Connections........................................................39
16.0) Venting ...............................................................................................................................................42
17.0) Air for Combustion ...........................................................................................................................47
17.1) Direct Outside Air for Combustion .................................................................................................47
18.0) Lighting and Shutdown Instructions..............................................................................................49
19.0) Sequence of Operation –single stage (n1/l1) ............................................................................49
20.0) Control Component Location..........................................................................................................51
21.0) Cleaning and Annual Maintenance ...............................................................................................52
22.0) Troubleshooting Guide –SINGLE STAGE (N1/L1).......................................................................53
22.1) Troubleshooting Guide –TWO STAGE (N2/L2)............................................................................56
23.0) Replacing Parts ................................................................................................................................59
23.1) Removal of Main Burner and Electrodes......................................................................................59
23.2) Removing Gas Valve and Manifold Assembly .............................................................................60
23.3) Air Switch Pressure Check..............................................................................................................60
23.4) Ignition System Checks ...................................................................................................................61
24.0) Installation Data ...............................................................................................................................62
25.0) Replacement Parts Guide...............................................................................................................63
26.0) Warnings Card ..................................................................................................................................67
This heater complies with ANSI Z83.20 (current standard) and CSA 2.34. Copies of the National Fuel Gas Code (ANSI
Z223.1-latest edition) are available from the CSA at 8501 East Pleasant Valley Road, Cleveland, Ohio 44131 or 55 Scarsdale
Road, Don Mills, Ontario M3B 2R3. All NFPA codes are available from the National Fire Protection Association, Batterymarch
Park, Quincy, Massachusetts 02269.

Form 43343350
-2- Dec 2017
1.0) SAFETY
This heater is a self-contained infrared radiant tube heater. Safety information required during installation and
operation of this heater is provided in this manual and the labels on the product. The installation, service and
maintenance of this heater must be performed by a contractor qualified in the installation and service of gas
fired heating equipment.
All personnel in contact with the heater must read and understand all safety information, instructions and labels
before operation. The following symbols will be used in this manual to indicate important safety information.
Warning instructions must be followed to prevent or avoid hazards which
may cause serious injury, property damage or death.
Caution instructions must be followed to prevent incorrect operation or
installation of the heater which may cause minor injury or property
damage.
2.0) INSTALLER RESPONSIBILITY
The installer is responsible for the following:
The heater and venting, as well as electrical and gas supplies must be installed in accordance with these
installation instructions and any applicable codes and regulations.
Every heater shall be located with respect to building construction and other equipment so as to permit
access to the heater.
Each installer must follow the clearances to combustible materials for the heaters.
Install the heater so that the supports and hangers are correctly spaced in accordance with these
instructions. The heater must be supported by materials having a working load limit of at least 115lbs.
Ensure that the tube integrity safety system TISS™ supplied is installed in accordance with these instructions
and that the tension is correct.
Supply the owner with a copy of these Installation and Operation Instructions.
Where unvented heaters are used, gravity or mechanical means shall be provided to supply and exhaust at
least 4 CFM per 1,000 Btu/hr input of installed heaters.
Never use the heater as a support for a ladder or other access equipment. Do not hang anything from the
heater.
Supply all installation materials necessary that are not included with the heater.
Check the nameplate to make sure that the burner is correct for the gas type in the building and the
installation altitude.
3.0) GENERAL INFORMATION
This heater is a self-contained infrared radiant tube heater for use in locations where flammable gases or vapors
are not generally present (as defined by OSHA acceptable limits) and is intended for the heating of
nonresidential spaces.
INSTALLATION REQUIREMENTS
The installation must conform to local building codes or in the absence of local codes, with the National Fuel Gas
Code ANSI Z223.1/NFPA54 or the Natural Gas and Propane Installation Code CSA B149.1. Heaters shall be
installed by a licensed contractor or licensed installer. Clearances to combustibles as outlined in this manual
should always be observed. In areas used for storage of combustible materials where they may be stacked
below the heater, NFPA54 requires that the installer must post signs that will “specify the maximum permissible
stacking height to maintain the required clearances from the heater to combustibles.”
Every heater shall be located with respect to building construction and other equipment so as to permit access
to the heater. Each installer shall use quality installation practices when locating the heater and must give
consideration to clearances to combustible materials, vehicles parked below, lights, overhead doors, storage
areas with stacked materials, sprinkler heads, gas and electrical lines and any other possible obstructions or
hazards. Consideration also must be given to service accessibility.

Form 43343350
Dec 2017 -3-
The heater, when installed in aircraft hangars and public garages, must be installed in accordance with
ANSI/NFPA 409-latest edition (Standard for Aircraft Hangars), ANSI/NFPA 88a-latest edition (Standard for
Parking Structures), and ANSI/NFPA 88b-latest edition (Standard for Repair Garages) with the following
clearances:
a. At least 10 feet above the upper surfaces of wings or engine enclosures of the highest aircraft that may be
housed in the hangar and at least 8 feet above the floor in shops, offices, and other sections of hangars
communicating with aircraft storage or service areas.
b. At least 8 feet above the floor in public garages. ▲WARNING: Minimum clearances marked on the heater
must be maintained from vehicles parked below the heater.
(FOR CANADA ONLY)
a. Installation of this appliance is to be in accordance with latest edition of CSA B149.1 (Natural Gas and
Propane Installation Code).
b. For installation in public garages or aircraft hangars, the minimum clearances from the bottom of the
infrared heater to the upper surface of the highest aircraft or vehicle shall be 50 percent greater than the
certified minimum clearance, but the clearance shall not be less than 8 feet.
Although these heaters may be used in many applications other than space heating (e.g., process heating),
Mestek, Inc. will not recognize the warranty for any use other than space heating.
For indoor installation only. Not for use in residential dwellings.
This heater is for Indoor Installation and Covered Patio Installation only and can be used in either Vented or
Unvented mode. The term Unvented actually means Indirect Vented. While the products of combustion are
expelled into the building, national codes require ventilation in the building to dilute these products of
combustion. This ventilation may be provided by gravity or mechanical means.
This heater is not an explosion proof heater. Where the possibility of exposure to volatile and low flash point
materials exists, it could result in property damage or death. This heater must not be installed in a spray booth
where the heater can operate during the spraying process. Consult your local fire marshal or insurance company.
R(B,S,M) S Series Only: Since straight tube heaters are always hotter at the control end than at the flue terminal
end, always observe the minimum recommended mounting heights shown on the specification sheets and in
Section 5.0) of this manual. Use U-tube configuration instead of straight tubes for spot or area heating (e.g.,
where a single heater is utilized for space heating).
High Altitude:
Appliances are supplied as standard for altitudes of O to 2,000 feet (0-610 m). High-altitude ratings are obtained
by a change in the orifice size. When ordered for high altitude installations, burners are supplied by the factory
ready for high altitude installation. Check the nameplate for altitude before proceeding with the installation. In
Canada the adjustment for altitude is made in accordance with Standard CGA 2.17, Gas-Fired Appliances for Use
at High Altitudes.
This product can expose you to chemicals including ceramic fibers, which
are known to the State of California to cause cancer, and carbon monoxide,
which is known to the State of California to cause birth defects or other
reproductive harm. For more information go to www.p65warnings.ca.gov.

Form 43343350
-4- Dec 2017
4.0) MINIMUM CLEARANCES TO COMBUSTIBLES
Install the warnings card (ordered separately) and complete the blank spaces using the clearances from
combustibles table below. See Section 26 for a printed copy of the warnings card.
Minimum clearances to combustibles shall be measured from the outer surfaces as shown in the following
diagram:
MINIMUM CLEARANCES TO COMBUSTIBLES
Model No.
Mounted Horizontally
Angle Mounted at
45º
Sides
Ceiling*
Below
Ends
45º Front
45º Rear
R(B,S,M) S/U 040
22”
6”
52”
15”
40”
12”
R(B,S,M) S/U 050
22”
6”
56”
15”
48”
12”
R(B,S,M) S/U 075
22”
6”
60”
15”
52”
12”
R(B,S,M) S/U 100
28”
6”
70” **
15”
58”
12”
R(B,S,M) S/U 125
28”
6”
76” **
20”
66”
12”
R(B,S,M) S/U 150
34”
6”
81” **
20”
70”
12”
R(B,S,M) S/U 175
38”
6”
86” **
20”
75”
12”
R(B,S,M) S/U 200
42”
6”
93” **
20”
80”
12”
* When used indirect vented, minimum clearance for CEILING must be: 12” for R(B,S,M) S/U 050-075 and 18”
for R(B,S,M) S/U 100-200. If optional corner and u-bend reflectors are not used, the clearance must be 18”.
** Maximum clearance below reduces by 50% once you are 25ft. downstream from the burner box.
▲WARNING: Certain materials or objects, when stored under the heater, will be subjected to radiant heat and
could be seriously damaged. Observe the Minimum Clearances to Combustibles listed in the manual and on the
heater at all times.
NOTE:
1. The clearances specified above must be maintained to combustibles and other materials that may be
damaged by temperatures 90ºF above ambient temperature. Clearances to combustibles are posted on the
burner box. In areas used for storage of combustible materials where they may be stacked below the heater,
NFPA54 requires that the installer must post signs that will “specify the maximum permissible stacking height
to maintain the required clearances from the heater to combustibles.” Mestek, Inc. recommends posting these
signs adjacent to the heater thermostat or other suitable location that will provide enhanced visibility.
2. The stated clearance to combustibles represents a surface temperature of 90 ºF (32 ºC) above room
temperature. Building materials with a low heat tolerance (such as plastics, vinyle 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.

Form 43343350
Dec 2017 -5-
5.0) SPECIFICATIONS
Model No.
Btu/hr
High
Input
(2-stage)
Btu/hr
Low
Input
Air Plate
Part #
Orifice Size
Minimum *
Mounting Height
Turbulator
Qty.
Natural Gas
Propane Gas
@
Horizontal
@
45º Angle
R(B,S,M) S/U 040
40,000
25,000
44140061
#32
(0.116)
#49
(0.073)
10 ft.
9 ft.
4
R(B,S,M) S/U 050
50,000
30,000
44140064
3.5mm
(0.138)
46
(0.081)
11 ft.
10 ft.
5
R(B,S,M) S/U 075
75,000
50,000
44140063
#21
(0.159)
2.5mm
(0.098)
13 ft.
12 ft.
5
R(B,S,M) S/U 100
100,000
65,000
44140062
#12
(0.189)
#32
(0.116)
14 ft.
13 ft.
3
R(B,S,M) S/U 125
125,000
80,000
44140066
#4
(0.209)
#30
(0.129)
14 ft.
13 ft.
7
R(B,S,M) S/U 150
150,000
100,000
44140067
“A”
(0.234)
#27
(0.144)
15 ft.
14 ft.
4
R(B,S,M) S/U 175
175,000
110,000
44140067
“E”
(0.250)
#23
(0.154)
16 ft.
15 ft.
0
R(B,S,M) S/U 200
200,000
125,000
44140068
6.9mm
(0.272)
4.1mm
(0.161)
18 ft.
16 ft.
1
* MOUNT HEATERS AS HIGH AS POSSIBLE. Minimums are shown as a guideline for human comfort and uniform
energy distribution for complete building heating applications. Consult your Mestek, Inc. representative for the
particulars of your installation requirements.
Model Identification:
Control Option
Suffix
Gas Type
Description
N1
Natural
Single Stage Gas Valve –Single Stage Input
L1
Propane
Single Stage Gas Valve –Single Stage Input
N2
Natural
Two Stage Gas Valve –Modulating Input –High/Low Fire
L2
Propane
Two Stage Gas Valve –Modulating Input –High/Low Fire
Type
Gas
Gas Pipe
Connection
Tube
Diameter
Flue
Connection1
Fresh Air
Connection1
Electrical
Supply
Current
Rating
Natural
or Propane
½” MPT
(Male)
4”
4” Round
4” Round
120 Volt, 60Hz,
1 Phase
1.74 Amp
1See Section 16.0) for vent sizes when multiple heaters are connected into a common vent
Module Electrical Rating:
Ignition System (direct spark):
Input-Control: 18-30 VAC 50/60 Hz (class 2 transformer)
Input Power-Line: 120 VAC (L1, IND contacts only)
Flame Sensitivity: 0.7 uA (microamps) minimum
15 second trial for ignition period
15 second pre-purge period
60 second inter-purge period
30 second post-purge period
3 tries for ignition (separate flame sensor).
6.0) PACKING LIST
A. R(B,S,M) S/U Burner Package
Part Description QTY
Burner Box Assembly (Refer to the following chart for Package Part Numbers) .......................... 1
4”ID x 4”Lg Flue Adapter Collar (#30504500) .................................................................................. 1
Fastener Kit –Burner Box Attachment/Flue Adapter Collar (#42907040) .................................. 1
Containing: #10 x 1/2” Self-Drilling Screws (#02189020) .................................................... 2
¼ - 20 Locknuts (#02167010) .............................................................................. 3
Tube Flange Gasket (#42921000) ........................................................................... 1
Turbulator 24” Long (#44152240) *See chart above for required quantities. .............................. *
Installation & Operation Instructions .................................................................................................... 1
Turnbuckle (#30545040)......................................................................................................................... 1
Gas connector 5/8” OD x 36” (#30302360) –US only....................................................................... 1
Screen Assembly –2-5/8” ID x 5-1/2” Long (#44151010) 200M BTU models only................... 1
End Reflector Package (#43341000) .................................................................................................. 1

Form 43343350
-6- Dec 2017
BURNER PACKAGE NUMBERS
SINGLE STAGE CONTROLS - MESTEK
TWO STAGE CONTROLS - MESTEK
MODEL NO.
PART NO.
GAS TYPE
MODEL NO.
PART NO.
GAS TYPE
RMS/U040N1U0
44490010
NATURAL
RMS/U040N2U0
44490510
NATURAL
RMS/U050N1U0
44490030
NATURAL
RMS/U050N2U0
44490530
NATURAL
RMS/U075N1U0
44490050
NATURAL
RMS/U075N2U0
44490550
NATURAL
RMS/U100N1U0
44490070
NATURAL
RMS/U100N2U0
44490570
NATURAL
RMS/U125N1U0
44490090
NATURAL
RMS/U125N2U0
44490590
NATURAL
RMS/U150N1U0
44490110
NATURAL
RMS/U150N2U0
44490610
NATURAL
RMS/U175N1U0
44490130
NATURAL
RMS/U175N2U0
44490630
NATURAL
RMS/U200N1U0
44490150
NATURAL
RMS/U200N2U0
44490650
NATURAL
RMS/U040L1U0
44490020
PROPANE
RMS/U040L2U0
44490520
PROPANE
RMS/U050L1U0
44490040
PROPANE
RMS/U050L2U0
44490540
PROPANE
RMS/U075L1U0
44490060
PROPANE
RMS/U075L2U0
44490560
PROPANE
RMS/U100L1U0
44490080
PROPANE
RMS/U100L2U0
44490580
PROPANE
RMS/U125L1U0
44490100
PROPANE
RMS/U125L2U0
44490600
PROPANE
RMS/U150L1U0
44490120
PROPANE
RMS/U150L2U0
44490620
PROPANE
RMS/U175L1U0
44490140
PROPANE
RMS/U175L2U0
44490640
PROPANE
RMS/U200L1U0
44490160
PROPANE
RMS/U200L2U0
44490660
PROPANE
SINGLE STAGE CONTROLS - STERLING
TWO STAGE CONTROLS - STERLING
MODEL NO.
PART NO.
GAS TYPE
MODEL NO.
PART NO.
GAS TYPE
RSS/U040N1U0
44488010
NATURAL
RSS/U040N2U0
44488510
NATURAL
RSS/U050N1U0
44488030
NATURAL
RSS/U050N2U0
44488530
NATURAL
RSS/U075N1U0
44488050
NATURAL
RSS/U075N2U0
44488550
NATURAL
RSS/U100N1U0
44488070
NATURAL
RSS/U100N2U0
44488570
NATURAL
RSS/U125N1U0
44488090
NATURAL
RSS/U125N2U0
44488590
NATURAL
RSS/U150N1U0
44488110
NATURAL
RSS/U150N2U0
44488610
NATURAL
RSS/U175N1U0
44488130
NATURAL
RSS/U175N2U0
44488630
NATURAL
RSS/U200N1U0
44488150
NATURAL
RSS/U200N2U0
44488650
NATURAL
RSS/U040L1U0
44488020
PROPANE
RSS/U040L2U0
44488520
PROPANE
RSS/U050L1U0
44488040
PROPANE
RSS/U050L2U0
44488540
PROPANE
RSS/U075L1U0
44488060
PROPANE
RSS/U075L2U0
44488560
PROPANE
RSS/U100L1U0
44488080
PROPANE
RSS/U100L2U0
44488580
PROPANE
RSS/U125L1U0
44488100
PROPANE
RSS/U125L2U0
44488600
PROPANE
RSS/U150L1U0
44488120
PROPANE
RSS/U150L2U0
44488620
PROPANE
RSS/U175L1U0
44488140
PROPANE
RSS/U175L2U0
44488640
PROPANE
RSS/U200L1U0
44488160
PROPANE
RSS/U200L2U0
44488660
PROPANE

Form 43343350
Dec 2017 -7-
SINGLE STAGE CONTROLS –BEACON/MORRIS
TWO STAGE CONTROLS –BEACON/MORRIS
MODEL NO.
PART NO.
GAS TYPE
MODEL NO.
PART NO.
GAS TYPE
RBS/U040N1U0
44492010
NATURAL
RBS/U040N2U0
44492510
NATURAL
RBS/U050N1U0
44492030
NATURAL
RBS/U050N2U0
44492530
NATURAL
RBS/U075N1U0
44492050
NATURAL
RBS/U075N2U0
44492550
NATURAL
RBS/U100N1U0
44492070
NATURAL
RBS/U100N2U0
44492570
NATURAL
RBS/U125N1U0
44492090
NATURAL
RBS/U125N2U0
44492590
NATURAL
RBS/U150N1U0
44492110
NATURAL
RBS/U150N2U0
44492610
NATURAL
RBS/U175N1U0
44492130
NATURAL
RBS/U175N2U0
44492630
NATURAL
RBS/U200N1U0
44492150
NATURAL
RBS/U200N2U0
44492650
NATURAL
RBS/U040L1U0
44492020
PROPANE
RBS/U040L2U0
44492520
PROPANE
RBS/U050L1U0
44492040
PROPANE
RBS/U050L2U0
44492540
PROPANE
RBS/U075L1U0
44492060
PROPANE
RBS/U075L2U0
44492560
PROPANE
RBS/U100L1U0
44492080
PROPANE
RBS/U100L2U0
44492580
PROPANE
RBS/U125L1U0
44492100
PROPANE
RBS/U125L2U0
44492600
PROPANE
RBS/U150L1U0
44492120
PROPANE
RBS/U150L2U0
44492620
PROPANE
RBS/U175L1U0
44492140
PROPANE
RBS/U175L2U0
44492640
PROPANE
RBS/U200L1U0
44492160
PROPANE
RBS/U200L2U0
44492660
PROPANE
B. R(B,S,M) S 040-200 Body Package Descriptions
(Package Part Number is indicated on the outside of each corresponding carton.)
Systems
10Ft.
System
20Ft.
System
30Ft.
System
40Ft.
System
50Ft.
System
R(B,S,M) S Body Packages –Aluminized/Hot Rolled or
Alumi-Therm/Hot Rolled
10 Ft. pkg
44134020
20 Ft. pkg
44135000
30 Ft. pkg
44136000
40 Ft. pkg
44137100
50 Ft. pkg
44138100
Part #
Each Body Package Includes:
Qty.
Qty.
Qty.
Qty.
Qty.
42912180
10 Ft. Tube with 12 Hole Flange (Aluminized)
1
1
1
-
-
42912169
10 Ft. Tube with 6 Hole Flange (Alumi-Therm)
-
-
-
1
1
41932101
10 Ft. Tube less Flanges (Hot Rolled)
-
1
2
3
4
43319100
Reflector, 9’ 11½”
1
2
3
4
5
30462980
Tube Coupling
-
1
2
3
4
43318000
Tube Hanger/Support Bracket, 13”
1
2
3
4
5
43980010
Wire Hanger
1
2
3
4
5
Body Fastener Kit (included in body packages)
42907280
42907190
42907200
42907210
42907220
42873000
U-Bolt
1
2
3
4
5
02127110
Hex Nut, 5/16-18
3
5
6
8
10
02189020
HWHSM Screw, #10-16 x ½” TEKS
4
8
10
14
18

Form 43343350
-8- Dec 2017
Systems
60Ft. System
70Ft. System
R(B,S,M) S Body Packages –Alumi-Therm/Hot Rolled
40 Ft. Pkg
44137100
20 Ft. Pkg
44135010
40 Ft. Pkg.
44137100
30 Ft. Pkg
44136040
Part #
Each Body Package Includes:
Qty.
Qty.
Qty.
Qty.
42912169
10 Ft. Tube with 6 Hole Flange (Alumi-Therm)
1
-
1
-
41932101
10 Ft. Tube less Flanges (Hot Rolled)
3
2
3
3
43319100
Reflector, 9’ 11½”
4
2
4
3
30462980
Tube Coupling
3
2
3
3
43318000
Tube Hanger/Support Bracket, 13”
4
2
4
3
43980010
Wire Hanger
4
2
4
3
Body Fastener Kit (included in body packages)
42907210
42907190
42907210
42907200
42873000
U-Bolt
4
2
4
3
02127110
Hex Nut, 5/16-18
8
5
8
6
02189020
HWHSM Screw, #10-16 x ½” TEKS
14
8
14
10
C. R(B,S,M) S 40-200 Series Body Package Descriptions –ALC Option (Aluminized Heat Treated)
(Package Part Number is indicated on the outside of each corresponding carton.)
Systems
10Ft.
System
20Ft.
System
30Ft.
System
40Ft.
System
50Ft.
System
R(B,S,M) S Body Packages –Aluminized/ Aluminized or
Alumi-Therm/ Aluminized
10 Ft. pkg
44134020
20 Ft. pkg
44135020
30 Ft. pkg
44136020
40 Ft. pkg
44137090
50 Ft. pkg
44138080
Part #
Each Body Package Includes:
Qty.
Qty.
Qty.
Qty.
Qty.
42912180
10 Ft. Tube with 12 Hole Flange (Aluminized)
1
1
1
-
-
42912169
10 Ft. Tube with 6 Hole Flange (Alumi-Therm)
-
-
-
1
1
41932100
10 Ft. Tube less Flanges (Aluminized)
-
1
2
3
4
43319100
Reflector, 9’ 11½”
1
2
3
4
5
30462980
Tube Coupling
-
1
2
3
4
43318000
Tube Hanger/Support Bracket, 13”
1
2
3
4
5
43980010
Wire Hanger
1
2
3
4
5
Body Fastener Kit (included in body packages)
42907280
42907190
42907200
42907210
42907220
42873000
U-Bolt
1
2
3
4
5
02127110
Hex Nut, 5/16-18
3
5
6
8
10
02189020
HWHSM Screw, #10-16 x ½” TEKS
4
8
10
14
18
Systems
60Ft. System
70Ft. System
R(B,S,M) S Body Packages –Alumi-Therm/ Aluminized
40 Ft. Pkg
44137090
20 Ft. Pkg
44135030
40 Ft. Pkg.
44137090
30 Ft. Pkg
44136050
Part #
Each Body Package Includes:
Qty.
Qty.
Qty.
Qty.
42912169
10 Ft. Tube with 6 Hole Flange (Alumi-Therm)
1
-
1
-
41932100
10 Ft. Tube less Flanges (Aluminized)
3
2
3
3
43319100
Reflector, 9’ 11½”
4
2
4
3
30462980
Tube Coupling
3
2
3
3
43318000
Tube Hanger/Support Bracket, 13”
4
2
4
3
43980010
Wire Hanger
4
2
4
3
Body Fastener Kit (included in body packages)
42907210
42907190
42907210
42907200
42873000
U-Bolt
4
2
4
3
02127110
Hex Nut, 5/16-18
8
5
8
6
02189020
HWHSM Screw, #10-16 x ½” TEKS
14
8
14
10

Form 43343350
Dec 2017 -9-
D. R(B,S,M) U 040-200 Body Package Descriptions
(Package Part Number is indicated on the outside of each corresponding carton.)
Systems
20Ft.
System
30Ft.
System
40Ft.
System
50Ft.
System
R(B,S,M) U Body Packages –Aluminized/Hot Rolled or
Alumi-Therm/Hot Rolled
20 Ft. pkg
44135000
30 Ft. pkg
44136010
40 Ft. pkg
44137100
50 Ft. pkg
44138110
Part #
Each Body Package Includes:
Qty.
Qty.
Qty.
Qty.
42912180
10 Ft. Tube with 12 Hole Flange (Aluminized)
1
1
-
-
42912169
10 Ft. Tube with 6 Hole Flange (Alumi-Therm)
-
-
1
1
41932101
10 Ft. Tube less Flanges (Hot Rolled)
1
1
3
3
41932051
5 Ft. Tube less Flanges (Hot Rolled)
-
2
-
2
43319100
Reflector, 9’ 11½”
2
2
4
4
43319050
Reflector, 4’ 11½”
-
2
-
2
30462980
Tube Coupling
1
3
3
5
43318000
Tube Hanger/Support Bracket, 13”
2
4
4
6
43980010
Wire Hanger
2
4
4
6
Body Fastener Kit (included in body packages)
42907190
42907210
42907210
42907221
42873000
U-Bolt
2
4
4
6
02127110
Hex Nut, 5/16-18
5
8
8
13
02189020
HWHSM Screw, #10-16 x ½” TEKS
8
14
14
24
U-Bend Package
43208020
43208020
43208020
43208020
42913020
U-Bend
1
1
1
1
43318500
31” Tube Support/Hanger Bracket
1
1
1
1
30462980
Tube Coupling
1
1
1
1
02189020
HWHSM Screw, #10-16 x ½” TEKS
2
2
2
2
Systems
60Ft. System
70Ft. System
R(B,S,M) U Body Packages –Alumi-Therm/Hot Rolled
40 Ft. Pkg
44137100
20 Ft. Pkg
44135010
40 Ft. Pkg.
44137120
30 Ft. Pkg
44136040
Part #
Each Body Package Includes:
Qty.
Qty.
Qty.
Qty.
42912169
10 Ft. Tube with 6 Hole Flange (Alumi-Therm)
1
-
1
-
41932101
10 Ft. Tube less Flanges (Hot Rolled)
3
2
2
3
41932051
5 Ft. Tube less Flanges (Hot Rolled)
-
-
2
-
43319100
Reflector, 9’ 11½”
4
2
3
3
43319050
Reflector, 4’ 11½”
-
-
2
-
30462980
Tube Coupling
3
2
4
3
43318000
Tube Hanger/Support Bracket, 13”
4
2
5
3
43980010
Wire Hanger
4
2
5
3
Body Fastener Kit (included in body packages)
42907210
42907190
42907220
42907200
42873000
U-Bolt
4
2
5
3
02127110
Hex Nut, 5/16-18
8
5
10
6
02189020
HWHSM Screw, #10-16 x ½” TEKS
14
8
18
10
U-Bend Package
43208020
43208020
42913020
U-Bend
1
1
43318500
31” Tube Support/Hanger Bracket
1
1
30462980
Tube Coupling
1
1
02189020
HWHSM Screw, #10-16 x ½” TEKS
2
2

Form 43343350
-10- Dec 2017
E. R(B,S,M) U 040-200 Series Body Package Descriptions –ALC Option (Aluminized Heat Treated)
(Package Part Number is indicated on the outside of each corresponding carton.)
Systems
20Ft.
System
30Ft.
System
40Ft.
System
50Ft.
System
R(B,S,M) U Body Packages –Aluminized/Aluminized or
Alumi-Therm/Aluminized
20 Ft. pkg
44135020
30 Ft. pkg
44136030
40 Ft. pkg
44137090
50 Ft. pkg
44138090
Part #
Each Body Package Includes:
Qty.
Qty.
Qty.
Qty.
42912180
10 Ft. Tube with 12 Hole Flange (Aluminized)
1
1
-
-
42912169
10 Ft. Tube with 6 Hole Flange (Alumi-Therm)
-
-
1
1
41932100
10 Ft. Tube less Flanges (Aluminized)
1
1
3
3
41932050
5 Ft. Tube less Flanges (Aluminized)
-
2
-
2
43319100
Reflector, 9’ 11½”
2
2
4
4
43319050
Reflector, 4’ 11½”
-
2
-
2
30462980
Tube Coupling
1
3
3
5
43318000
Tube Hanger/Support Bracket, 13”
2
4
4
6
43980010
Wire Hanger
2
4
4
6
Body Fastener Kit (included in body packages)
42907190
42907210
42907210
42907221
42873000
U-Bolt
2
4
4
6
02127110
Hex Nut, 5/16-18
5
8
8
13
02189020
HWHSM Screw, #10-16 x ½” TEKS
8
14
14
24
U-Bend Package
43208020
43208020
43208020
43208020
42913020
U-Bend
1
1
1
1
43318500
31” Tube Support/Hanger Bracket
1
1
1
1
30462980
Tube Coupling
1
1
1
1
02189020
HWHSM Screw, #10-16 x ½” TEKS
2
2
2
2
60Ft. System
70Ft. System
R(B,S,M) U Body Packages –Alumi-Therm/Aluminized
40 Ft. Pkg
44137090
20 Ft. Pkg
44135030
40 Ft. Pkg.
44137110
30 Ft. Pkg
44136050
Part #
Each Body Package Includes:
Qty.
Qty.
Qty.
Qty.
42912169
10 Ft. Tube with 6 Hole Flange (Alumi-Therm)
1
-
1
-
41932100
10 Ft. Tube less Flanges (Aluminized)
3
2
2
3
41932050
5 Ft. Tube less Flanges (Aluminized)
-
-
2
-
43319100
Reflector, 9’ 11½”
4
2
3
3
43319050
Reflector, 4’ 11½”
-
-
2
-
30462980
Tube Coupling
3
2
4
3
43318000
Tube Hanger/Support Bracket, 13”
4
2
5
3
43980010
Wire Hanger
4
2
5
3
Body Fastener Kit (included in body packages)
42907210
42907190
42907220
42907200
42873000
U-Bolt
4
2
5
3
02127110
Hex Nut, 5/16-18
8
5
10
6
02189020
HWHSM Screw, #10-16 x ½” TEKS
14
8
18
10
U-Bend Package
43208020
43208020
42913020
U-Bend
1
1
43318500
31” Tube Support/Hanger Bracket
1
1
30462980
Tube Coupling
1
1
02189020
HWHSM Screw, #10-16 x ½” TEKS
2
2

Form 43343350
Dec 2017 -11-
6.1) ACCESSORY PACKAGES
A. End Reflector Accessory Package, Part
#43341000
(1 pkg. per S - Straight Series or 2 pkgs. per U -
Series)
Contains:
End Reflector, #43320000……QTY–2
Speed Clips, #02266010……QTY–8
B. Elbow Accessory Package, Part #43208010
(Option for S - Straight Series Only)
Contains:
Elbow, #43175000……QTY–1
#10-16 x ½ Self-Drilling Screws, #02189020……QTY–2
Tube Coupling, #30462980……QTY–1
C. Corner Reflector Accessory Package, Part
#43342000
(Option for S - Straight Series Only)
Contains:
Corner Reflector Assembly, #43345000……QTY–1
Speed Clips, #02266010……QTY–4
D. U-Bend Package, Part #43208020
(Option for U - Series Only)
Contains:
U-Bend, #42913020……QTY–1
#10-16 x ½ Self-Drilling Screws, #02189020……QTY–2
Tube Coupling, #30462980……QTY–1
31” Tube Support/Hanger Bracket,
#43318500……QTY–1

Form 43343350
-12- Dec 2017
E. U-Bend Reflector Package, Part #43488000
(Option for U - Series Only)
Contains:
U-Bend Reflector, #43490000……QTY–1
U-Bend End Reflector, #43490050……QTY–1
Speed Clips, #02266010……QTY–11
#10-16 x ½ Self-Drilling Screws, #02189020……QTY–4
Installation Form, #43489000……QTY-1
F. 31” Hanger/Tube Support, Part #43318500
(Option for Angle Mounting of U –Series Only)
G. Exhaust Hood Package, Part #42924000
Contains:
Exhaust Hood Assembly, #42925550……QTY–1
#8-18 x ½ Self-Drilling Screws, #02189030……QTY–2
H. Kit, 2-Stage Relay Board,
Part #44195000
Contains:
Relay Board , #30709058……QTY–1
Enclosure, #30709059……QTY–1
Cord Connector –½” ,
#30635040……QTY–2

Form 43343350
Dec 2017 -13-
7.0) TYPICAL LAYOUTS –STRAIGHT AND U SERIES
MODEL
EMITTER LENGTH
MODEL
BODY LENGTH
Min.
Max.
Min.
Max.
R(B,S,M) S 040
10 Ft.
20 Ft.
R(B,S,M) U 040
10 Ft.
10 Ft.
R(B,S,M) S 050
20 Ft
40 Ft.
R(B,S,M) U 050
10 Ft.
20 Ft.
R(B,S,M) S 075
20 Ft.
40 Ft.
R(B,S,M) U 075
10 Ft.
20 Ft
R(B,S,M) S 100
30 Ft.
50 Ft.
R(B,S,M) U 100
15 Ft.
25 Ft.
R(B,S,M) S 125
30 Ft
60 Ft.
R(B,S,M) U 125
15 Ft.
30 Ft.
R(B,S,M) S 150
40 Ft.
60 Ft.
R(B,S,M) U 150
20 Ft.
30 Ft.
R(B,S,M) S 175
50 Ft.
70 Ft.
R(B,S,M) U 175
25 Ft.
35 Ft.
R(B,S,M) S 200
50 Ft.
70 Ft.
R(B,S,M) U 200
25 Ft.
35 Ft.
NOTES:
1. In all configurations, the control unit must be connected directly to either a) the 12-radial hole flange of the
10 ft. aluminized steel starting body section (for 10 ft., 20 ft., and 30 ft. systems) or b) the 6-hole flange of
the 10 ft. alumi-therm steel starting body section (for 40 ft., 50 ft., 60 ft., and 70 ft. systems).
2. Joining of two 90º elbows directly together to form a “Z” shape IS NOT permitted.
3. 5 Ft. Body Packages may be utilized on any of these heaters to yield heater lengths from 15 ft. to 70 ft.
4. Any configuration of components not shown in the illustrations may be used except as noted in 1 and 2
above.

Form 43343350
-14- Dec 2017
7.1) TYPICAL ASSEMBLY LAYOUT –STRAIGHT SERIES SHOWN

Form 43343350
Dec 2017 -15-
8.0) DIMENSIONS –STRAIGHT SERIES
Typical Dimensions Up to 60 Ft. Shown.

Form 43343350
-16- Dec 2017
8.1) DIMENSIONS –U SERIES
Typical Dimensions Up to 50 Ft. Shown.

Form 43343350
Dec 2017 -17-
8.2) HEATER ASSEMBLY / JOINING OF TUBE SECTIONS

Form 43343350
-18- Dec 2017

Form 43343350
Dec 2017 -19-
9.0) TYPICAL SUSPENSION METHODS
Various means of suspending the heater can be used. See the following drawings for typical examples.
1. Use only noncombustible materials for suspending hangers and brackets.
2. A minimum No. 2 chain with a working load limit of 115 lbs. is required.
3. Turnbuckles can be used with chains to allow leveling of the heater. All “S” hooks and eye bolts must be
manually crimped closed by the installer.
4. When using rigid means for heater suspension (rod, flat bar, etc.) provide sufficient lengths or swing joints to
compensate for expansion. See Figures b and c.
5. Heaters subject to vibration must be provided with vibration isolating hangers.
6. Heaters must not be supported by gas or electric supply lines and must be suspended from a permanent
structure with adequate load capacity.
Mestek, Inc. recommends that the body sections be suspended using chains with turnbuckles. This will allow
slight adjustments after assembly and heater expansion/ contraction during operation.
If a “trapeze” method is used for tube support/hanger brackets (shown below), the minimum chain length for the
two connecting chains is 36” to minimize any vibration that might be generated by the burner box. If these
chains must be less than 36”, then do not use the trapeze method and, instead, use individual chains on each
tube support/hanger bracket.