Schwank STW-JZ User manual

STW-JZ / IW I&O Manual
IM101229
RL: 12B- BA
RD: AUG 2013
INSTALLATION / OWNER’S MANUAL
Improper installation, adjustment, alteration, service or
maintenance can cause property damage, injury or death.
Read the installation and operating and maintenance instruc-
tions thoroughly before installing or servicing this equipment.
SAFETY ALERT:
This heater must be installed and serviced only by a trained gas service techni-
cian. Failure to comply could result in personal injury, death, fire and/or property
damage.
Do not store or use gasoline or other flammable vapours and liquids in the
vicinity of this or any other gas fired appliance.
IF YOU SMELL GAS:
 Extinguish any open flame
 Do not attempt to light this or any other appliance
 Don’t touch any electrical switch, or telephone
 Immediately call your gas supplier from a neighbor’s phone
 Follow any and all instruction from your gas supplier
 If your gas supplier is not available, call the fire department
WARNING
FIELD CONVERTIBILITY:
This appliance is field con-
vertible to LP gas.
~ See page 49 ~
Keep this manual in a secure place .
Record for future reference:
Model #:
Serial #:
(located on heater rating label)
&Model
IW (-2)
CAR WASH & HARSH ENVIRONMENT
LOWINTENSITYTUBETYPE INFRARED HEATERS
Model
STW-JZ (-JZ2)

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STW-JZ / IW I&O Manual
IM101229
RL: 12B- BA
RD: AUG 2013
NOTICE:
This manual is current for this product. Occasional revision of the product Certification Stan-
dard may require changes to the product and/or this manual.
This publication, or parts thereof, may not be reproduced in any form, without prior written
consent from The Manufacturer. Unauthorized use or distribution of this publication is strictly
prohibited.
Schwank Group
Schwank and InfraSave brands
5285 Bradco Boulevard
Mississauga, Ontario,L4W 2A6
PO Box 988, 2 Schwank Way
Waynesboro, Georgia 30830
Customer & Technical Services
Phone: [phone]
Fax: [phone]
e-mail: [email protected]
www.schwankgroup.com
www.infrasave.com

3 STW-JZ / IW I&O Manual
IM101229
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RD: AUG 2013
TABLE OF CONTENTS
TOPIC .........PAGE
INSTALLATION
IMPORTANT INFORMATION - READ FIRST
APPLICATION..............................................4
HEATER EXPANSION ...........................5, 31
GAS CONNECTION ...............................5, 31
See also “Flexible Gas Connection”......31
VENTING.................................................5, 26
START UP ‘SMOKE’....................................5
CLEARANCE TO COMBUSTIBLES............6
Clearances Figure & Table ........................7
STACKING HEIGHT SIGN ......................8
1. LABOR REQUIREMENTS ...............................9
2. INSTALLATION IN AIRCRAFT HANGARS .....9
3. INSTALLATION IN COMMERCIAL
GARAGES........................................................9
4. INSTALLATIONS OTHER THAN
SPACE HEATING.............................................9
5. PRE-INSTALLATION SURVEY......................10
6. MOUNTING CLEARANCES...........................11
SERVICE CLEARANCE.................................11
HEATER PLACEMENT GUIDELINES...........12
7. SUSPENDING THE SYSTEM........................13
7-A SEISMIC RESTRAINT ..................................16
7-B HIGH WIND RESTRAINT..............................16
8. SYSTEMS WITH 90° & 180° ELBOWS . 17 - 20
ELBOW KIT DIMENSIONS .………..20, 53
9. BURNER & TUBE INSTALLATION................21
TURBULATORS ............................................24
SPECIAL COUPLING -175 & 200 Mbh .........25
10. REFLECTOR INSTALLATION......................26
11. FLUE VENTING.............................................28
12. COMBUSTION AIR DUCT............................32
TOPIC ……...PAGE
13. GAS SUPPLY ..................................................33
HEATER EXPANSION.....................................34
FLEXIBLE GAS CONNECTION............... 34 - 35
14. ELECTRICAL AND THERMOSTAT.................36
15. HIGH ALTITUDE INSTALLATION..........36 & 50
16. LIGHTING INSTRUCTIONS ...........................36
17. RECOMMENDED MAINTENANCE.................36
18. WIRING DIAGRAM..........................................37
19. WIRING DIAGRAM MULTIPLE HEATERS
PER THERMOSTAT.....................................38
20. SEQUENCE OF OPERATION.........................39
21. TROUBLESHOOTING GUIDE.........................40
22. SPARK IGNITION CIRCUIT ............................42
SPARK IGNITER SET UP...............................42
24. START– UP / COMMISSIONING SHEET .......43
PRODUCT DIMENSIONS & DATA
25. HEATER DIMENSIONS / WEIGHTS ………43
INSTALLATION DIMENSIONS ………. ..45
26. BURNER / TUBE KIT ASSEMBLY CHARTS
ALUMINIZED STEEL TUBE KITS …............47
STAINLESS STEEL TUBE KITS …..............48
27. GAS CONVERSION OF BURNER...................49
29. HIGH ALTITUDE & ORIFICE CHART...... 50 - 51
30. OPTIONAL ACCESSORIES..................... 52 - 54
31. BURNER PARTS LIST ............................ 55 - 56
TUBE SYSTEM PARTS LIST...........................57
WARRANTY STATEMENT ............BACK PAGE
STW-JZ and IW SERIES
GAS FIRED INFRARED
LOW INTENSITY TUBE TYPE

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STW-JZ / IW I&O Manual
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APPLICATION
This model tube heater is approved to ANSI Z83.20-CSA 2.34 Standard for Gas-Fired Low-
Intensity Infrared Heaters (some models are approved for outdoor use - see below). A radiant
tube heater may be installed for heating of commercial / industrial non-residential spaces. It is
beyond the scope of these instructions to consider all conditions that may be encountered in
the field. Installation must conform with all local building codes or, in the absence of local
codes, with the National Fuel Gas Code, ANSI Z223.1/NFPA 54 in the U.S.A. or the Natural
Gas and Propane Installation Code, CSA B149.1 in Canada. The latest edition Electrical Code
ANSI/NFPA N0 70 in the U.S.A. and PART 1 CSA C22.1 in Canada must also be observed.
Installation of a gas fired tube heater must conform to all heating installation design procedures
including clearance to combustibles, connection to gas and electrical supplies, and ventilation.
This heater is not for installation in a Class 1 or Class 2 explosive environment (regardless of
Division), nor a residence. If application of this equipment is in question, consult with local au-
thorities having jurisdiction (Fire Marshall, labor department, insurance underwriter, or others).
Revisions to codes and/or standards, may require revision to equipment and installation proce-
dures. In case of discrepancy, the latest codes, standards, and installation manual will take pri-
ority over prior releases.
TUBE HEATER MODELS AVAILABLE FOR COMMERCIAL/INDUSTRIAL APPLICATION:
Builder Models: S100 / ITB: for budget sensitive projects
Premier Models: STS-JZ / IQ: Competitively priced higher radiant efficiency
P40U Series: Factory assembled 40,000 Btuh x 10 ft; Low input rate for Builder or Premier
installations
Outdoor spaces and wet indoor environments: SPW-JZ / IWP / P40U-P: Powder coated wa-
ter resistant burner enclosure; aluminized steel tube/reflector system.
Outdoor spaces and harsh indoor environments: STW-JZ / IW / P40U-W Models: stainless
steel water resistant burner enclosure; aluminized steel tube/reflector system.
STW-JZ2 / IW2 Models have a stainless steel tube/reflector system; stainless steel tube/
reflector is not available in the P40U packaged model.
ULTRA Series: High efficiency burner; insulated reflector system; highest radiant efficiency
Improper installation, adjustment, alteration, service or maintenance can cause
property damage, injury or death. Read and understand this installation and op-
eration manual thoroughly prior to assembly, installation, operation or service to
this appliance.
This heater must be installed and serviced by a trained gas service technician.
Do not store or use gasoline or other flammable vapours and liquids in the vicinity
of this or any other gas fired appliance.
Failure to comply can result in personal injury, death, fire and/or property damage.
Do not store or use gasoline or other flammable vapours and liquids in the vicinity
of this or any other gas fired appliance.
This appliance may have sharp edges and corners. Wear protective clothing such
as gloves and protective eye wear when servicing this or any other appliance.
WARNING

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Heater Expansion
It is a normal condition that during heat-up and cool-down a tube
heater will expand and contract. Allowances for heater expansion
must be made in the gas connection, venting and combustion air
ducting. Improper installation, alteration, or adjustment can result in
WARNING
Venting
Inadequate venting of a heater may result in asphyxiation, carbon
monoxide poisoning, injury or death. This heater may be directly or
indirectly vented from the space. Venting must be in accordance with
all local, state, provincial, and national codes (ANSI Z223.1/NFPA 54 in USA;
B149.1 in Canada) and as indicated in this manual. Refer to Sections 11 & 12
Gas Connection
Improper installation, connection, or adjustment can result in property
damage, toxic gases, asphyxiation, injury or death. Use the approved
Type 1 hose gas connector supplied with the heater to connect the
heater to the gas supply. The gas supply must be connected tested in accordance with all lo-
cal, state, provincial, and national codes (ANSI Z223.1/NFPA 54 in USA; B149.1 in Canada)
and as indicated in this manual. Refer to Section 13
WARNING
WARNING
WARNING Start-Up ‘SMOKE’ Condition
During start up, the heating of material coatings used in the production process of tubes and
reflectors will create smoke during the initial period of operation. This condition is normal and
temporary .
Ensure that there is sufficient ventilation to adequately clear any smoke from the space.
Notify site and safety personnel to ensure that alarm systems are not unduly activated.
WARNING Tube “GLOW”
It is a normal condition that the combustion tube (1st tube) can appear to “glow red”. For inputs
up to 150,000 Btuh, the top surface of the tube can appear red where heat is trapped between
the reflector and the tube. The stainless steel tube used for inputs 175,000 and greater ap-
pears to entirely glow red. The tube material is designed into the heater because it can with-
stand the high temperature of combustion, and the “red glow” is a normal occurrence.

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STW-JZ / IW I&O Manual
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RD: AUG 2013
Clearance to combustibles
Location of flammable or explosive objects, liquids or vapors close to the heater may cause fire
or explosion and result in property damage, injury or death. Do not use, store or locate flamma-
ble or explosive objects, liquids or vapors in proximity of the heater.
The clearance to combustible material represents the minimum dis-
tance that must be maintained between the outer heater surface and
a nearby surface. The stated clearance to combustibles represents a
surface temperature of 90F° (50C°) above room temperature. It is the
installer’s responsibility to ensure that building materials with a low
heat tolerance which may degrade at lower temperatures are pro-
tected to prevent degradation. Examples of low heat tolerance mate-
rials include vinyl siding, fabrics, some plastics, filmy materials, etc.
In locations used for the storage of combustible materials, signs must be posted to specify the
maximum permissible stacking height to maintain the required clearances from the heater to
the combustibles. Such signs must either be posted adjacent to the heater thermostats or in
the absence of such thermostats in a conspicuous location. In addition to stored or stationary
material, consideration must also be given to moveable objects such as cranes, vehicles, and
overhead doors, and structural objects such as sprinkler heads, electrical and gas lines, and
electrical fixtures.
It is beyond the scope of these instructions to consider all conditions that may be encountered.
Consult local authorities such as the Fire Marshall, insurance carrier, or safety authorities if you
are uncertain as to the safety or applicability of the proposed installation.
Refer to Figure 1 and Table 1 for the certified clearances to combustibles for the appro-
priate model input/size.
WARNING

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TABLE 1 MINIMUM CLEARANCES TO COMBUSTIBLES*
FIGURE 1 MINIMUM CLEARANCES TO COMBUSTIBLES* - refer to Table 1 for values
*The clearance to combustible materials represents the minimum distance that must be main-
tained between the heater and a nearby surface. The stated clearance to combustibles
represents a surface temperature of 90F° (50C°) above room temperature. .
NOTES:
 In the above table the clearances are measured from the reflector
NOTE: A ‘PEEL & STICK’ SIGN IS SUPPLIED: USE AN INDELIBLE MARKER TO
ENTER VALUES ‘H’, ‘S’, ‘F’, & ‘B’ ON THE SIGN.
POST THE SIGN ADJACENT TO THE HEATER THERMOSTAT OR IN A
PROMINENT LOCATION. See next page for details.
F
D
B
A
S S
C
Suspended at an
angle up to 45° Suspended horizontally
C
FLOOR
H
T
H
Maximum
Stack Height
H= T- C
‘T’ is meas-
ured on site,
FLOOR
T
Maximum
Stack Height
H= T- C
‘T’ is meas-
ured on site,
MODEL SUSPENDED AT AN ANGLE UP TO 45 DEGREES SUSPENDED HORIZONTALLY
D
inches (cm) B inches (cm) F inches (cm) C inches (cm) A inches (cm) S inches (cm) C inches (cm)
STW-JZ/IW 200 13 (33) 6(15.2) 74 (188) 70 (178) 14 (36) 44 (112) 76 (193)
STW-JZ/IW 175 12 (31) 6(15.2) 72 (183) 68 (172) 13 (33) 42 (107) 74 (188)
STW-JZ/IW 155 5.5 (14) 1(2.5) 44 (112) 64 (163) 3.5 (9) 19 (48) 64 (163)
STW-JZ/IW 130 4.5 (11) 1(2.5) 35 (89) 60 (152) 3.3 (9) 11 (28) 60 (152)
STW-JZ/IW 110 3.5 (9) 1(2.5) 26 (66) 54 (137) 2 (5) 10 (25) 54 (137)
STW-JZ/IW 80 3(8) 1(2.5) 23 (59) 38 (97) 1.75 (5) 6 (15) 38 (97)
STW-JZ/IW 60 2.5 (6) 1(2.5) 17 (43) 34 (86) 1.5 (4) 5.5 (14) 34 (86)
STW-JZ/IW 45 2.75 (7) 1(2.5) 24 (61) 32 (81) 2.25 (6) 7 (18) 32 (81)

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RD: AUG 2013
VENT END CLEARANCE: Clearances from the vent pipe are determined by local or national
installation codes, but must not be less than 6 inches (15 cm). For ‘unvented’ installation, a
minimum distance of 24 inches (61 cm) is required from the end of heater to a combustible
surface.
In locations used for the storage of combustible materials: Signs
must be posted specifying the maximum permissible stacking height
to maintain the required clearances from the heater to the combustibles.
The signs must be posted either adjacent to the IR heating system thermostats or in the ab-
sence of such thermostats, in a conspicuous place.
For your convenience a “peel and stick” sign
is provided with this heater. Use a permanent
marker to record the required dimensions on
the sign.
To calculate the value ‘H’: (H= T- C)
 Measure the on site distance between bottom of
the heater and the floor = ‘T’ inches (cm).
 Refer to Table 1 to get the value ‘C’ that corre-
sponds to the model you are installing
 Subtract the clearance below the heater ‘C’ from
‘T’ to get value ‘H’.
 Enter this value ‘H’ on the sign.
Refer to the information for the heater model
being installed in Figure 1 and Table 1 to get
the values for dimensions ‘S’, ‘F’ and ‘B’.
WARNING
Post this sign as instructed above.
 It is the installer’s responsibility to ensure that building materials with a low heat
tolerance which may degrade at lower temperatures are protected to prevent deg-
radation.
 Examples of low heat tolerance materials include vinyl siding, fabrics, some plas-
tics, filmy materials, etc.

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2. INSTALLATION IN COMMERCIAL AIRCRAFT HANGARS
Low intensity radiant tube heaters are suitable for use in aircraft hangars when installed in ac-
cordance with the latest edition of the Standard for Aircraft Hangars, ANSI/NFPA No 409 in the
USA, or the Canadian Natural Gas and Propane Installation Code, B149.1.
A. A minimum clearance of 10 ft (3 m) above either the highest fuel storage compartment or
the highest engine enclosure of the highest aircraft which may occupy the hangar. The
clearance to the bottom of the heater shall be measured from the upper surface of either
the fuel storage compartment or the engine enclosure, whichever is higher from the floor.
B. A minimum clearance of 8 ft (2.4 m) must be maintained from the bottom of the heater to
the floor in other sections of the aircraft hangar, such as offices and shops, which communi-
cate with areas for servicing or storage. Refer to Table 1 for proper mounting clearances to
combustibles.
C. Heaters must be located so as to be protected from damage by aircraft and other objects,
such as cranes and movable scaffolding.
D. Heaters must be located so as to be accessible for servicing and adjustment.
1. LABOR REQUIRMENTS
Two persons are required to safely install this equipment. Wear gloves and other required
safety protection.
3. INSTALLATION IN COMMERCIAL GARAGES AND PARKING STRUCTURES
Low Intensity Heaters are suitable for use in commercial garages when installed in accordance
with the latest edition of the Standard for Parking Structures, ANSI/NFPA 88A, or the Standard
for Repair Garages, ANSI/NFPA No. 88B, or the Canadian Natural Gas and Propane Installa-
tion Code, B149.1.
An overhead heater shall be located high enough to maintain the
minimum distance to combustibles, as shown on the heater rating
plate, from the heater to any vehicles parked below the heater.
Overhead heaters shall be installed at least 8 ft (2.4 m) above the floor.
4. INSTALLATIONS OTHER THAN SPACE HEATING
Use for process or other applications that are not space heating will void the C.S.A. certification
and product warranty. Process application requires field inspection and/or certification by local
authorities having jurisdiction.
WARNING

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WARNING
Improper installation, adjustment, alteration, service or maintenance can cause
property damage, injury or death. Read and understand this installation and
operation manual thoroughly prior to assembly, installation, operation or service to
this appliance.
This heater must be installed and serviced only by a trained gas service technician.
Do not store or use gasoline or other flammable vapours and liquids in the vicinity
of this or any other gas fired appliance.
Failure to comply could result in personal injury, death, fire and/or property damage.
Do not store or use gasoline or other flammable vapours and liquids in the vicinity
of this or any other gas fired appliance.
5. PRE INSTALLATION SURVEY
It is recommended that a full heating design including heat loss calculation be conducted on
the structure or area to be heated. Heater sizing and placement must consider available
mounting height, sources of greatest heat loss, and the certified clearances to combustibles
with respect to stored material, moveable objects (cranes, vehicles, lifts, overhead doors, etc),
sprinkler system heads, and other obstructions on the site. Consideration must also be given to
vent / duct placement and the allowable combined lengths of vent and duct. Carefully survey
the area to be heated, and for best results place burner and combustion chamber in the coldest
area(s) .
Installation must conform with all local, state, provincial and national code requirements includ-
ing the current latest edition ANSI Z223.1 (NFPA 54) in the U.S.A. and B149.1 installation
code in Canada, for gas burning appliances and equipment. The latest edition Electrical Code
ANSI/NFPA N0 70 in the U.S.A. and PART 1 CSA C22.1 in Canada must also be observed.
The heating system must have gas piping of the correct diameter, length, and arrangement to
function properly. For this reason, a layout drawing is necessary.

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6. MOUNTING CLEARANCES
This heater must be mounted with at least the minimum clearances between the heater and
combustibles as shown in FIG-1, TABLE 1, Page 7. It is the installer’s responsibility to ensure
that building materials with a low heat tolerance which may degrade at lower temperatures are
protected to prevent degradation. Examples of low heat tolerance materials include vinyl
siding, fabrics, some plastics, filmy materials, etc.
Positioning of lights, sprinkler heads, overhead doors, storage areas, gas and electrical lines,
parked vehicles, cranes and any other possible obstruction or hazard must be evaluated prior
to installation.
Ensure adequate clearance around the air intake at the burner to allow sufficient com-
bustion air supply to the heater.
6A. SERVICE CLEARANCE: The lower ‘jaw’ of the burner cabinet swings down to provide
convenient service access to burner components. Provide a minimum clearance from any wall
or obstruction of 6 inches (15 cm) to the access end of the burner housing, and a minimum of
24 inches (61 cm) to any ONE side to allow servicing of burner, blower and controls. (see Fig-
ure 2 below) - the minimum clearances to combustibles must always be maintained.
For guidelines to heater placement refer to TABLE 2 (next page).
FIGURE 2

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*GUIDELINE MOUNTING HEIGHTS are typical to provide optimum comfort in general space
heating applications. Variance to these typical heights can occur in some applications:
 Higher mounting heights due to structure or application requirements
 Lower mounting heights: Area or ‘spot’ heat; locations with sufficient horizontal separa-
tion distance from personnel; areas with greater infiltration losses (near overhead doors,
etc)
IMPORTANT: Single or multiple heater placement must be such that continous
operation of heater(s) will not cause combustible material or materials in stor-
age to reach a temperature in excess of ambient temperature plus 90F° (50C°).
It is the installer’s responsibility to ensure that building materials with a
low heat tolerance which may degrade at lower temperatures are pro-
tected to prevent degradation. Examples of low heat tolerance materials
include vinyl siding, fabrics, some plastics, filmy materials, etc.
Refer to “Clearance to Combustibles” information on pages 6 to 8, and
Figure 1 and Table 1.
MODEL INPUT
RATE
(Btuh)
GUIDELINE*
MOUNTING
HEIGHT
ft (m)
MAXIMUM
DISTANCE
BETWEEN
HEATERS
ft (m)
DISTANCE – OUTSIDE WALL
TO HEATER LONG AXIS
(PARALLEL TO WALL) IN “FEET”
HORIZONTAL
ft (m) ANGLE
200,000 18 – 30 (6 - 8) 50 (15) 17 – 25 (5 - 8)
COMBUSTIBLE
CLEARANCE
BEHIND
REFLECTOR -
or greater
(refer to Table 1)
175,000 18 – 30 (6 - 8) 50 (15) 17 – 25 (5 - 8)
150,000 16 – 25 (5 - 7) 45 (14) 15 – 20 (5 - 7)
130,000 15 – 21 (5 - 7) 40 (12) 15 – 20 (5 - 7)
110,000 13 – 19 (4 - 6) 35 (11) 13 – 18 (4 - 6)
80,000 10 – 16 (3 - 5) 30 (9) 12 – 16 (4 - 5)
60,000 8 – 14 (2.5 - 5) 25 (8) 11 – 15 (3.4 - 5)
40 / 45,000 8 – 12 (2.5 - 4) 20 (6) 8 – 12 (2.5 - 4)
TABLE 2: GUIDELINES FOR HEATER PLACEMENT

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7. SUSPENDING THE SYSTEM - GENERAL
Inadequate or improper suspension of the tube heater can result in collapse of
the system, property damage, and personal injury or death.
It is the installer’s responsibility to ensure that the hardware and structural sup-
ports from which the heater is suspended are sound and of adequate strength
to support the weight and expansion forces of the heater.
Consider that the heater will expand in length as much as 1/2 inch (12.5 mm) or more for every
10 ft (3 m) of system length – typically the greater the firing rate, the greater the expansion.
Refer to Sections 13 & 14
1) Survey the available structural supports, considering the system configuration and heat re-
quirements of the area to establish the optimum heater location.
a) Locating a heater directly under joists or beams, or installing supplemental steel support
rail or angle iron can substantially reduce labor and materials
2) Tube system hangers must be located: A) straight in line; B) at a common height (level);
and C) 116” (295 cm) apart.- see Figure 6 next page.
a) NOTE: It is important that the tubes in the system are installed in alignment horizontally
(level) and vertically (in line) – this will ensure system integrity
3) Hardware with a minimum 60 lb. (30 kg) work load must be used at each heater suspension
point. A #8 Jack Chain or equivalent is typically used for suspending the heater.
a) Connect to the structure using typical hardware as illustrated in FIGURE 5 (below) or by
other mechanically sound means
b) If rigid devices such as 3/8” threaded rods are used for suspension, swing joints or other
means must be provided to allow for system expansion - approximately ½ inch to 1 inch
for every 10 ft (1 cm to 2.5 cm for every 3 m) of system length.
4) Two types of hangers are provided to suspend the tube system – see FIGURES 6 & 7
a) Plate hangers support the tubes and reflectors at each end of the tube system
b) Webbed hangers support tubes and reflectors at each tube junction
HOOK OR EYE
BOLT THROUGH
HOLE IN BEAM
BEAM CLAMP
WITH HOOK OR
EYE
HOOK OR
EYE
SCREW
PIPE RING
OR CLEVIS
HANGER
BAR-JOIST
CLAMP
FIGURE 5 TYPICAL MOUNTING HARDWARE
NOTE: It is the installer’s responsibility to ensure that mounting hardware and
fastening to structure are of sufficient strength to support the system.

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5) Please NOTE that each hanger has a ‘flat’ side and a ‘cavity’ side – FIGURE 6
a) Starting at the burner end of the heater: all hangers except the last plate hanger are ori-
ented with the cavity side of the hanger facing toward the burner end
b) The cavity side of only the vent end plate hanger faces the vent - FIGURE 6
Refer to Figures on next pages, and proceed to Section 9. Burner and Tube Installation
Intermediate Webbed
Hanger (note: cavity side
always faces Burner).
Use solid End Plate Hanger
at Burner and Vent ends
(note cavity side faces
outward from tube)
FIGURE 6 END PLATE & WEBBED HANGERS
Burner
IMPORTANT
FIGURE 7 TYPICAL HANGER & SUPPORT SPACING
1. Burner Assembly
2. Flange Adapter
3. Flanged Tube
4. Swaged Tube
5. Vent termination
(optional; wall or roof)
6. End Plate Hanger
7. Webbed Hanger
8. Hanging Chains
9. Focus Shield Reflector
10.Reflector Stabilizer
10 10
116” (295 cm)
The distance between the
tube flange and face of
the plate hanger must be
2.5” (6 cm)
Angle the burner suspension
chain back over the burner to
allow system expansion
116” (295 cm)
6.5” (16.5 cm)

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FIGURE 8 REFLECTOR STABILIZER
FIGURE 9 PLATE HANGER/ELBOW INSTALLATION see section 7
2
4 6
5
3
6
1
43
2
590° Elbow Kit JS-0508-JZ
1. Webbed-Hanger
2. Reflectors
3. Webbed-Hanger Flange UNDER Reflector
4. Webbed Hanger Flange mounts UNDER
and fastens the next Reflector
5. 90° Tube Elbow
6. Tube/Elbow Coupler
FIGURE 10 HANGER / REFLECTOR ORIENTATION HORIZONTAL TO 450
Bend stabilizer tabs
over reflector
‘edge’ to secure in
place
Equalspace alonglength

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7-A. SEISMIC RESTRAINT - LATERAL AND LONGITUDINAL
In areas prone to earthquake, or as specified on a project, install lateral and longitudinal seis-
mic restraints as indicated in Figure 11. If the heater location can be impacted by wind (aircraft
hangars, etc) refer to High Wind Restraint section 8-B.
These restraint systems indicate suspension of and attachment to the heater. The attachment
of suspension hardware to the structure will be as required by site structural conditions, instal-
lation codes, and/or local engineering design requirements. Other types or systems of restraint
may be specified by local or national codes, or by project engineering design specifications.
Schwank / InfraSave offers optional items: #2 Lion Chain 115 lb work load x 200 ft roll (PN: JL-
0800-XX); and Safety Snap Hooks (PN: JL-0800-SH = pkg 24; JL-0800-SH-B = pkg 100).
All other required seismic mounting hardware is field supplied by the installer.
7-B. HIGH WIND RESTRAINT - LATERAL, LONGITUDINAL, AND VERTICAL
In areas with wind conditions (aircraft hangers, etc) in addition to lateral and longitudinal re-
straint the heater must be restrained from vertical movement. Suspend the heater using 3/8”
threaded rod with 3” adjustment turnbuckle through a safety ring at each hanger location.
FIGURE 11
FIGURE 12

17 STW-JZ / IW I&O Manual
IM101229
RL: 12B- BA
RD: AUG 2013
System Configuration
1 Straight line
2 “U” tube with 2 x 90° elbow kits
3 “L” tube with one 90° elbow kit
4 Twinned tubes into common TEE flue vent
FIGURE 3 SYSTEM ELBOW KIT - see page 53 for 180° elbow dimensions
FIGURE 4 SYSTEM CONFIGURATIONS
8. SYSTEMS INCORPORATING 90° ELBOWS AND 180° ELBOWS
A radiant tube heater can be installed in configurations as illustrated in FIGURE 4. (below) with
a maximum of two 90° elbows per heater. The use of elbows reduces the total maximum vent
allowable. (See Section 11 : Flue venting)
90° elbows (JS-0528-JZ) are shipped as a kit with one coupler, one reflector and one plate
hanger. For a 180° elbow, order 2 x 90° kits that connect to create a 180°. An optional kit
(JS-0504-JZ) to angle mount a reflector adjacent to an elbow is also available and must be or-
dered separately. The reflectors must be secured to each of the elbow plate hangers, See
PAGE 19 IMPORTANT: Models with input 100 Mbh x 20 ft (30 kW x 6 m) must only be in-
stalled as a straight system with no elbows allowed at the 10 ft (3 m) location.
Elbow Location / Input: A minimum run of straight radiant tube must be con-
nected to the burner before any elbow as follows: Inputs 200,000 and 175,000
= 25 ft (7.6 m); 150,000 = 20 ft (6 m); 130,000 and 110,000 = 15 ft (4.6 m); and
inputs 80,000 and 60,000 a minimum of 10 ft (3 m) straight tube before elbow.
JS-0504-JZ
Angle mounting of the reflector system either side of an el-
bow requires adapter JS-0504-JZ. The elbow always remains
in a horizontal orientation.

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STW-JZ / IW I&O Manual
IM101229
RL: 12B- BA
RD: AUG 2013
90° ELBOW KIT ASSEMBLY
#1
Add the coupler to the 90° elbow over the
swaged end of the elbow.
#2
Slacken the coupler bolts. Slide the cou-
pler over the elbow from the swaged end.
#3
Add the plate hanger to the system
Important: the plate hanger must be in-
stalled with the cavity side facing up-
stream toward the burner.
#4
Install the next plate hanger (supplied
with tube kit) over the unswaged end of
the elbow with the cavity side facing up-
stream toward the burner.
(Not to be reversed)
#5
Place the reflector over the plate hang-
ers. Secure reflector to hangers with
sheet metal screws provided.
CAVITY
SIDE
INSTALLATION INSTRUCTIONS FOR 90° AND 180° ELBOW KITS
When installing systems that incorporate a 90° or 180° elbow, assembly of the system is facili-
tated by first locating and installing the elbow assembly, then install the remainder of the tube/
reflector system working away from the elbow.
FLOW DIRECTION
SWAGED END

19 STW-JZ / IW I&O Manual
IM101229
RL: 12B- BA
RD: AUG 2013
#6
After installation of the elbow assembly,
fasten the corners of the reflector cover
with the 2 screws provided.
For 90° installation finish with step # 7
For 180° installation skip # 7 and proceed
to step # 8
#7
Suspending the elbow kit in horizontal
position prepared for tube installation in
horizontal mode.
#8
180° ELBOW KIT ASSEMBLY
Add the second coupler to the 90° elbow
kit to form 180° elbow kit
Slacken the bolts and slide the coupler
over the elbow at the swaged end.
#9
Add the third plate hanger to the elbow kit
– pay attention to the mouting position of
the plate. Always with the cavity facing
toward the ‘burner end’ of the system
#10
Place the second reflector over the plate
hangers. Secure the reflector with 8
screws to the plate hanger.

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STW-JZ / IW I&O Manual
IM101229
RL: 12B- BA
RD: AUG 2013
#11/A
Suspend with 3 chains in horizontal posi-
tion and continue installing the tubes and
reflectors to complete the system.
#11/B
When hanging a heater with a 180° el-
bow kit at 45° angle the vent run tubes
must be on top, with the burner on the
lower side.
JS-0504-JZ REFLECTOR ANGLE ADAPTER -JZ SERIES
1. A reflector angle adapter can be
installed on either side or both
sides of an elbow, depending
upon site requirements for an-
gling of reflectors
2. The angle adapter is installed on
the ‘flat’ side of the webbed
hanger (concave side of hanger
must face inward towards the el-
bow)
3. Rotate the angle adapter around
the tube to the desired angle of
the reflector - established by the
tube/reflector system hangers lo-
cated before or after the elbow
4. Align one of the holes in the angle adapter with the hole at top center of the elbow/tube
hanger
5. Bolt the angle adapter to the elbow/tube hanger through the aligned holes
6. The angle adapter will remain in place by resting on the tube
7. Attach reflector to the angle adapter with sheet metal screws
5
7
BURNER ON
LOWER SIDE