Schwank Infrasave SET Series Operating instructions

SET(U) / ITT(U) Manual

IM091221

RD: APR 2019

RL: 13C

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



FIELD CONVERTIBILITY:

This appliance is field con-

vertible to Propane.

Keep this manual in a secure place .

Record for future reference:

Model #:

Serial #:

(located on heater rating label)

SET - SETU Series &

-



ITT - ITTU Series

SET(U) / ITT(U) Manual

IM091221

RD: APR 2019

RL: 13C

NOTICE:

This manual is current for the product with which it is packaged. Occasional revision of the

product Certification Standard and/or Codes 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 and InfraSave brands

5285 Bradco Boulevard

Mississauga, Ontario,L4W 2A6

PO Box 988, 2 Schwank Way

Waynesboro, Georgia 30830



Phone: 877-446-3727

Fax: 866-361-0523

e-mail: csr@schwankgroup.com





SET(U) / ITT(U) Manual

IM091221

RD: APR 2019

RL: 13C









 ........ 

IMPORTANT INFORMATION - READ FIRST

 ..............................................4

 ...........................5, 31

 ...............................5, 31

 ...............................................5, 26

‘’....................................5

 .......5

‘’..............................................6

............6

Clearances Figure & Table ........................7

 ..........................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. SYSTEMS WITH 90° & 180° ELBOWS .......... 12

ELBOW KIT DIMENSIONS .……… …..13, 50

8. SUSPENDING THE SYSTEM......................... 14

9. BURNER & TUBE INSTALLATION

STRAIGHT TUBE SYSTEM......................... 15

‘U’ TUBE SYSTEM....................................... 17

SPECIAL COUPLING - 175 & 200 Mbh .... ..19

10. REFLECTOR INSTALLATION ........................ 20

11. FLUE VENTING .............................................. 22

12. COMBUSTION AIR DUCT .............................. 28

13. GAS SUPPLY ................................................. 29

HEATER EXPANSION .................................... 30

FLEXIBLE GAS CONNECTION...................... 31

……...

14. ELECTRICAL AND THERMOSTAT ................ 32

15. HIGH ALTITUDE INSTALLATION................... 32

16. LIGHTING INSTRUCTIONS .............. .............32

17. RECOMMENDED MAINTENANCE .............. ..32

18. WIRING DIAGRAM: FENWAL DSI

2-STAGE 24 VOLT THERMOSTAT............. 33

19. WIRING DIAGRAM MULTIPLE HEATERS

PER 2-STAGE THERMOSTAT.................... 34

20. FENWAL DSI: SEQUENCE OF OPERATION ......... 35

SPARK IGNITER ADJUSTMENT ................... 37

21. TROUBLESHOOTING GUIDE: FENWAL DSI......... 38

22. TROUBLESHOOTING GUIDE: HEATER ................ 39

23. START– UP / COMMISSIONING SHEET ...... 41



24. HEATER DIMENSIONS / WEIGHTS ………43

INSTALLATION DIMENSIONS ………. ..44

25. BURNER / TUBE KIT ASSEMBLY CHART

STRAIGHT TUBE SYSTEM ………….......45

‘U’ TUBE SYSTEM ………………………...46

26. TURBULATORS .............................................. 47

TURBULATOR ILLUSTRATION ..................... 48

27. HIGH ALTITUDE & ORIFICE CHART ............. 49

28. OPTIONAL ACCESSORIES ..................... 50 - 52

29. BURNER PARTS LIST ............................ 53 - 56

30. TUBE SYSTEM PARTS LIST .......................... 57

WARRANTY STATEMENT................... BACK PAGE

SET(U) / ITT(U) Manual

IM091221

RD: APR 2019

RL: 13C



A gas-fired 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. 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 Electri-

cal Code ANSI/NFPA N0 70 in the U.S.A. and PART 1 CSA C22.1 in Canada must also be ob-

served.

Installation of a gas fired tube heater must conform to all heating installation design procedures

including clearance to combustibles, connection to the gas and electrical supplies, and ventila-

tion.

This heater is not for installation in a Class 1 or Class 2 explosive environment, nor a resi-

dence. If installation of this equipment is in question, consult with local authorities having juris-

diction (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.

andmay be installed for two stage heating of commercial / industrial non-

residential 



(two stage) and -/ (single stage) have a powder coated

water resistant burner enclosure and may be installed for heating of commercial / industrial non

-residential 

-and have a stainless steel water resistant burner enclosure and may be

installed for heating of commercial / industrial non-residential 



Improper installation, adjustment, alteration, service or mainte-

nance 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 techni-

cian.

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 dam-

age.

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

California Proposition 65:

: This product can expose you to chemicals including 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

SET(U) / ITT(U) Manual

IM091221

RD: APR 2019

RL: 13C



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

property damage, injury or death. 





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.



Improper installation, connection, or adjustment can result in property

damage, toxic gases, asphyxiation, injury or death. Using an ap-

proved flexible gas connector in the USA or Type 1 hose connector

in Canada, the gas supply to the heater must be connected and test-

ed 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. 



 -‘’ 

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.

 

Infrared radiant (IR) heating system provide comfort with the effect of radiant heat and ambient

air heat.

If your IR system is controlled with a TruTemp or ThermoControl Plus controller that senses radi-

ant heat, then set the control to the desired comfort temperature (ie: 65°; 68°; 20°C).

If your IR system is controlled with a standard 24V or 120V thermostat that senses only air tem-

perature, then start with a thermostat setting that is 5° to 7°F (3° to 5°C) lower than the desired

comfort temperature. Some trial and error setting may be required to ‘fine tune’ the comfort tem-

perature that best suits the site and provides most economical operation.

Unoccupied (night) set-back of 9°F (5°C) is recommended. Do not turn the system ‘Off’.



SET(U) / ITT(U) Manual

IM091221

RD: APR 2019

RL: 13C



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.









’

         





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.



.



 “”

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 can ap-

pear 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.

SET(U) / ITT(U) Manual

IM091221

RD: APR 2019

RL: 13C



-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. 



’

‘’ USE AN INDELIBLE MARKER TO

ENTER VALUES ‘H’, ‘S’, ‘F’, & ‘B’ ON .

POST THE SIGN ADJACENT TO THE HEATER THERMOSTAT OR IN A

PROMINENT LOCATION. See next page for details.













Suspended at an

angle up to 45°

Suspended

horizontally



FLOOR







Maximum

Stack Height

 = T- C

‘T’ is meas-

ured on site,

‘C’ is in Table

FLOOR



Maximum

Stack Height

 = T- C

‘T’ is meas-

ured on site,

‘C’ is in Table





“” &

“-”

 

  



inches (cm)



inches (cm)



inches (cm)



inches (cm)



inches (cm)



inches (cm)



inches (cm)

 7” (18) 22” (56) 68” (172) 7” (18) 1” (2.5) 57” (145) 68” (172)

 6.5” (16.5) 20” (51) 68” (172) 6.5” (16.5) 1” (2.5) 47” (119) 68” (172)

 6” (15) 19” (48) 64” (163) 6” (15) 1” (2.5) 44” (112) 64” (163)

 4” (10) 11” (28) 60” (152) 5” (13) 1” (2.5) 35” (89) 56” (142)

 3” (8) 10” (25) 60” (152) 4.5” (11) 1” (2.5) 26” (66) 54” (137)

 2.5” (6) 6” (15) 42” (107) 3.5” (9) 1” (2.5) 23” (59) 38” (97)

SET(U) / ITT(U) Manual

IM091221

RD: APR 2019

RL: 13C

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 sur-

face.



 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.

“” 







To calculate the value ‘’: ( =  - )

• Measure the on site distance between bottom of

the heater and the floor = ‘’ inches (cm).

• Refer to Table 1 to get the value ‘’ that corre-

sponds to the model you are installing

• Subtract the clearance below the heater ‘’ from

‘’ to get value ‘’.

• Enter this value ‘’ 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 ‘’, ‘’ and ‘’.

WARNING

Post this sign as instructed above.







SET(U) / ITT(U) Manual

IM091221

RD: APR 2019

RL: 13C

 

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 Section 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.

 

Two persons are required to safely install this equipment. Wear gloves and other required safe-

ty protection.



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 mini-

mum 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.

 

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

SET(U) / ITT(U) Manual

IM091221

RD: APR 2019

RL: 13C

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.

 

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.

This manual suits for next models

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