Schwank 4N12-JSERIES Owner`s manual

primoSchwank & supraSchwank
HIGH EFFICIENCY COMBINED INTENSITY
Gas-Fired Luminous (High Intensity) Infrared Heaters
Certified by CSA International to ANSI Z83.19b / CSA 2.35b latest edition.
INSTALLATION / OWNER’S MANUAL
WARNING Improper installation, adjustment, alteration, service or
maintenance can cause property damage, injury or death.
Read the installation and operating and maintenance instructions thoroughly before installing or servicing this equipment.
Not approved for use in any residential application.
SAFETY ALERT:
This heater must be installed and serviced only by a trained gas service technician. 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 leave the area and 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 convertible to LP gas. Use kit
available from manufacturer.
See Page 14. Follow all
local and national codes.
INSTALLER: PRESENT THIS MANUAL
TO THE END USER.
Keep this manual in a secure place .
Record for future reference:
Model #:
Serial #:
(located on heater rating label)
supra/primo Manual
IM091112
RD: APR 2013
RL: 13B
NOTICE:
This manual is current for this product. Occasional revision of the product Certification Standard 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: 877-446-3727
Fax: 866-361-0523
e-mail: csr@schwankgroup.com
www.schwankgroup.com
www.infrasave.com
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primoSchwank
supraSchwank
HIGH EFFICIENCY COMBINED INTENSITY
GAS FIRED INFRA-RED HEATERS
TABLE OF CONTENTS
TOPIC
........PAGE
TOPIC
……...PAGE
IMPORTANT INFORMATION - READ FIRST
11. INSTALLATION .............................................. 16
APPLICATION ..............................................4
DIMENSIONS & CAPACITIES ........................ 17
HEATER EXPANSION .................................5
SEISMIC & WIND SUSPENSION ................... 18
GAS CONNECTION ...............................5, 14
VENTING ................................................5, 13
12. LIGHTING INSTRUCTIONS ........................... 19
13. SHUT DOWN INSTRUCTIONS....................... 19
‘SMOKE’ & DISCOLORATION ....................5
14. DISCOLORATION OF HEATER BODY .......... 19
CLEARANCE TO COMBUSTIBLES............6
Clearances Figure & Table ........................7
STACKING HEIGHT SIGN .......................8
WIRING DIAGRAMS
15. FENWAL CONTROL - 24V THERMOSTAT................. 20
16. FENWAL CONTROL - 120V THERMOSTAT ............... 21
1. GENERAL APPLICATION................................9
LABOR REQUIREMENTS................................9
17. SERVICE GUIDE............................................. 22
2. INSTALLATION IN AIRCRAFT HANGARS .....9
18. TROUBLESHOOTING GUIDE ........................ 23
3. INSTALLATION IN COMMERCIAL
GARAGES ........................................................9
19. HIGH ALTITUDE INSTALLATION................... 26
4. INSTALLATIONS OTHER THAN
SPACE HEATING ............................................9
20. SEQUENCE OF OPERATION ........................ 27
ORIFICE CHARTS.................................... 26
21. SPARK IGNITION CIRCUIT ............................ 28
5. PRE-INSTALLATION SURVEY......................10
22. START– UP / COMMISSIONING SHEET....... 29
6. MOUNTING CLEARANCES...........................11
23. OPTIONAL ACCESSORIES ........................... 30
SERVICE CLEARANCE.................................11
PRIMO SIDE SHIELD EXTENSIONS ............. 33
7. HEATER PLACEMENT GUIDELINES ...........12
SUPRA SIDE SHIELD EXTENSIONS............. 34
8. VENTILATION ................................................13
24. EXPLODED VIEW & PARTS LIST ................. 35
9. GAS SUPPLY & PIPING ................................14
WARRANTY STATEMENT ............ BACK PAGE
GAS CONVERSION .....................................14
10. ELECTRICAL & THERMOSTAT ....................15
IMPORTANT
Installer: Present this manual to the end user. Acquaint the
end user with Important Information: Cover & pages 4 to 8.
END USER: In particular you must be aware of ‘Clearances to Combustible’ requirements and the limitations of stacking or placing material near the heaters.
Inform your safety personnel and staff of this information.
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IMPORTANT
Installer: Present this manual to the end user. Acquaint the
end user with Important Information: Cover & pages 4 to 8.
END USER: In particular you must be aware of ‘Clearances to Combustible’ requirements and the limitations of stacking or placing material near the heaters.
Make your safety personnel and staff aware of this information.
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.
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.
APPLICATION
This heater is certified to ANSI Z83.19b / CSA 2.35b latest edition.
A gas-fired luminous (high intensity) radiant 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 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 radiant heater must conform to all heating installation design procedures including clearance to combustibles, connection to the gas and electrical supplies, and
ventilation.
This heater is not for installation in a Class 1 or Class 2 explosive environment, nor for any residential application. If installation of this equipment is in question, consult with local authorities having jurisdiction (Fire Marshall, labor department, insurance underwriter, or others).
WARNING
Revisions to codes and/or standards, may require revision to equipment and installation procedures. In case of discrepancy, the latest codes, standards, and installation manual will take priority over prior releases.
IMPORTANT: DO NOT INSTALL THIS HEATER IN A STRUCTURE WITH NO INSULATION
IN THE ROOF—CONDENSATION WILL OCCUR.
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WARNING
Heater Expansion
It is a normal condition that during heat-up and cool-down a radiant
heater will expand and contract. Allowances for heater expansion
must be made in the gas connection and heater suspension. Improper installation, alteration, or adjustment can result in property
damage, injury or death.
WARNING
Gas Connection
Improper installation, connection, or adjustment can result in property
damage, toxic gases, asphyxiation, injury or death. Use an approved
stainless steel flexible gas connector (field supplied) to connect to the
gas supply to the heater 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.
WARNING
Venting
Inadequate venting of a heater may result in asphyxiation, carbon
monoxide poisoning, injury or death. This heater is 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
WARNING
‘Smoke’ & Discoloration Condition
During start-up, the heating of material coatings used in the production process of the heater
may create a small amount of 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 management and safety personnel to ensure that alarm systems are not unduly
activated.
Under certain conditions in some locations/environments, surface discoloration may occur on the
heater body where the products of combustion discharge from the heater. This discoloration is
due the deposit of ambient air borne particulate or gases that have passed through combustion. The combustion of fuel gas in a clean environment will not cause any discoloration. The
discoloration does not affect the operation of the heater nor the manufacturer’s warranties.
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WARNING
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 flammable or explosive objects, liquids or vapors in proximity of the heater.
The clearance to combustible material represents the minimum distance 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 protected to prevent degradation. Examples of low heat tolerance materials 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. For your convenience, a sign is supplied with this heater - see page 8 for details. 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 electrical
and gas lines, electrical fixtures, and sprinkler heads.
Heaters must be located an appropriate distance from sprinkler heads. This distance may be
greater than the certified clearance to combustibles. Check the temperature rating of the sprinkler heads and locate heaters at a safe distance - in some instances the sprinkler heads may
need to be replaced by higher temperature heads.
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 NEXT PAGE for the certified clearances to combustibles
for the appropriate model input/size.
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MOUNTING CLEARANCE TO COMBUSTIBLES
NOTE:
A ‘PEEL & STICK’ SIGN IS SUPPLIED: 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.
FIGURE 1: MINIMUM DISTANCES TO COMBUSTIBLES - refer to Table 1 for values
SUSPENDED
AT 30°
SUSPENDED
HORIZONTALLY
A
F
A
S
A
B
A
S
T = Site distance
to floor
C
Site distance to floor = T
C
TABLE 1: MINIMUM CLEARANCE TO COMBUSTIBLES
SUSPENDED HORIZONTALLY: Measured from outer surface of heater
BELOW ‘C’ SIDES ‘S’
TOP ‘A’
ENDS ‘E’
MODEL
Inches [cm] Inches [cm] Inches [cm] Inches [cm]
primoSchwank 10
primoSchwank 15
primoSchwank 20
primoSchwank 30
90"
96"
100"
105”
[229]
[244]
[254]
[267]
30” [76]
30” [76]
36” [91]
42” [107]
18"
18"
18"
18"
[46]
[46]
[46]
[46]
48"
48"
48"
48"
[122]
[122]
[122]
[122]
supraSchwank 10
supraSchwank 15
supraSchwank 20
supraSchwank 30
90"
96"
100"
105”
[229]
[244]
[254]
[267]
30”
30”
33”
36”
16”
16”
16”
16”
[41]
[41]
[41]
[41]
48"
48"
48"
48"
[122]
[122]
[122]
[122]
[76]
[76]
[84]
[91]
SUSPENDED AT AN ANGLE OF 30° *: Measured from outer surface of heater
BELOW ‘C’ FRONT ‘F’
BACK ‘B’
TOP ‘A’
ENDS ‘E’
MODEL
Inches [cm] Inches [cm] Inches [cm] Inches [cm] Inches [cm]
primoSchwank 10
primoSchwank 15
primoSchwank 20
primoSchwank 30
67”
66”
70”
74”
[170]
[168]
[178]
[188]
67”
66”
70”
74”
[170]
[168]
[178]
[188]
8”
8”
8”
8”
[20]
[20]
[20]
[20]
24”
24”
24”
24”
[61]
[61]
[61]
[61]
48"
48"
48"
48"
[122]
[122]
[122]
[122]
supraSchwank 10
supraSchwank 15
supraSchwank 20
supraSchwank 30
66”
66”
69”
72”
[168]
[168]
[175]
[183]
66”
66”
69”
72”
[168]
[168]
[175]
[183]
8”
8”
8”
8”
[20]
[20]
[20]
[20]
24”
24”
24”
24”
[61]
[61]
[61]
[61]
48"
48"
48"
48"
[122]
[122]
[122]
[122]
NOTE: Suspended between horizontal and 30°: Use the largest clearance from each column
~ See additional notes on previous & next pages ~
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The clearance to combustible materials represents the minimum distance that must be maintained between the heater 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 protected to prevent degradation.
Examples of low heat tolerance materials include vinyl siding, fabrics, some plastics, filmy materials, etc.
WARNING 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 absence 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’ ( Maximum Material Stacking Height):
Maximum Material Stacking Height: H = T (distance from heater to floor) minus C (the combustibles clearance below the heater)
or 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’ (clearance
to combustibles below heater) that corresponds
to the model you are installing
 Subtract the clearance below the heater ‘C’
from ‘T’ to get value ‘H’ (maximum material
stacking height).
 Enter this value ‘H’ on the sign with permanent
marker.

Then, for the heater model/size being installed,
refer to the information in Figure 1 and Table 1
to get the values for dimensions ‘S’, ‘F’ and ‘B’
(F and B are for ‘angle mounted’ heaters only).
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Post this sign as instructed above.
1. GENERAL APPLICATION
A gas-fired radiant 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 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 radiant heater must conform to all heating installation design procedures including clearance to combustibles, connection to the gas and electrical supplies, and
ventilation.
This heater is not for installation in a Class 1 or Class 2 explosive environment, nor a residence. If installation of this equipment is in question, consult with local authorities having jurisdiction (Fire Marshall, labor department, insurance underwriter, or others).
Revisions to codes and/or standards, may require revision to equipment and installation procedures. In case of discrepancy, the latest codes, standards, and installation manual will take priority over prior releases.
Models primoSchwank and supraSchwank may be installed for heating of commercial / industrial non-residential indoor spaces.
IMPORTANT: DO NOT INSTALL THIS HEATER IN A STRUCTURE THAT HAS NO INSULATION IN THE ROOF - CONDENSATION WILL OCCUR.
This heater must not be installed inside a degreasing plant, nor in an area where chlorine, fluorine or bromine are present.
LABOR REQUIRMENTS
Two persons are required to safely install this equipment. Wear gloves and other required
safety protection.
2.
INSTALLATION IN COMMERCIAL AIRCRAFT HANGARS
Luminous (high intensity) radiant tube heaters are suitable for use in aircraft hangars when
installed in accordance 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 communicate 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.
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3.
INSTALLATION IN COMMERCIAL GARAGES AND PARKING STRUCTURES
Luminous (high intensity) radiant 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 Installation Code, B149.1.
WARNING
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. Process application design should be provided by local experienced process design experts.
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 obstructions on the site. The certified clearances to combustibles with respect to stored material, moveable objects (cranes, vehicles, lifts,
overhead doors, etc), structural components, and sprinkler system heads. Consideration must
also be given to ventilation fan placement. Carefully survey the area to be heated, and for best
results place heaters in the coldest area(s) and at sufficient spacing to provide radiant heat
coverage.
Installation must conform with all local, state, provincial and national code requirements including 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
provide for the total system input. A layout drawing is necessary to calculate properly sized
gas supply piping.
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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. The clearances to combustible material
represent a surface temperature of 90 F° (50 C°) above ambient. 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.
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 combustion air supply to the heater.
6A. SERVICE CLEARANCE: To allow servicing of burner and controls, provide a minimum
clearance of 24 inches (61 cm) from the gas supply / ignition-controls of the heater to a wall or
obstruction . (see Figure 2 below) - the minimum clearances to combustibles must always be
maintained.
For guidelines to heater placement refer to TABLE 2 (next page).
FIGURE 2: SERVICE CLEARANCE
7. HEATER MOUNTING / PLACEMENT
The primoSchwank / supraSchwank Combined Intensity Heaters are approved for both horizontal and angle mounting.
IMPORTANT: When angle mounting, the short axis may be rotated to a maximum of 30° with
the venturi always in the upper position. Improper angle mounting can result in
damage to the heater or unsafe operation.
For either horizontal or angle mounting, the long axis of the heater must be level. Use
only non-combustible mounting hardware.
See FIGURE 3 and TABLE 2 next page for ‘Typical Layout Mounting Distances’
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TABLE 2: SUGGESTED LAYOUT MOUNTING DISTANCES FOR COMFORT*
SUSPENDED HORIZONTALLY TO 30°:
MODEL
primoSchwank or
supraSchwank
TYPICAL ABOVE
FLOOR
<X>
10
15
20
30
15' (460 cm)
18' (550 cm)
20' (610 cm)
24' (730 cm)
TYPICAL BETWEEN
HEATERS
<Y>
TYPICAL
BETWEEN ROWS
<Z>
25' (760 cm)
30' (915 cm)
35' (1070 cm)
45' (1370 cm)
30' (915 cm)
40' (1220 cm)
50' (1525 cm)
70' (2135 cm)
SUSPENDED AT AN ANGLE** 30° TO 45°:
MODEL
primoSchwank or
supraSchwank
TYPICAL ABOVE
FLOOR
<X>
10
15
20
30
13' (400 cm)
16' (490 cm)
18' (550 cm)
21' (640 cm)
TYPICAL BETWEEN
HEATERS
<Y>
TYPICAL
BETWEEN ROWS
<Z>
25' (760 cm)
30' (915 cm)
35' (1070 cm)
45' (1370 cm)
50' (1525 cm)
75' (2290 cm)
100' (3050 cm)
140' (4270 cm)
FIGURE 3: SUGGESTED SPACING FOR COMFORT
Y
Long axis always level
X
Venturi
in upper
position
Z
Z
X
X
Short axis may
rotate up to 30°
* The Mounting distances are suggested, and may vary depending on insulation values, air movement / change, and other site conditions. If in doubt, please contact
Schwank Technical Services.
For ‘spot’ heating, the distance above the floor can be reduced by 2 to 4 feet (61 to
132 cm) depending upon site conditions.
** IMPORTANT: When angle mounted the gas-inlet/venturi side of the heater
MUST BE IN THE UPPER POSITION.
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8. VENTILATION
WARNING
Inadequate venting of a heater may result in asphyxiation, carbon monoxide
poisoning, injury or death. Heating system venting must be in accordance with
all local, state, provincial, and national codes (ANSI Z223.1/NFPA 54 in USA;
B149.1 in Canada).
This heater is approved for unvented (indirect venting) application. Ensure that there is adequate ventilation to supply combustion air and to dilute the products of combustion in accordance with all local, state, provincial, and national codes. A balanced exhaust / inlet air system
is required to ensure that a negative air condition is not created. See below for a summary of
exhaust capacity requirements by the national codes in the U.S.A. and Canada.
Air Supply: “Loose” buildings may not require any additional air supply if infiltration rates are
sufficient. However, for “tighter” buildings, or if air movement is stagnant in an area, air can
typically be supplied via inlet(s) with an area of 1 sq. in. per 1,000 Btuh input (22 sq cm per
kW). Locate air inlet(s) up at the level of the heaters to avoid cold drafts at work level, and effectively supply combustion and dilution air to the heaters and balance the system.
Heater Zoning: Exhausters are sized according to the input requirements of each controlled
zone of heaters. Multiple smaller zones are usually more effective in both comfort and ventilation control than one large zone. Maximum zone size is limited by the total input that can be
handled by the capacity of an exhauster, and by the proximity of the exhauster to heaters in the
zone.
Exhauster Location & Proximity: Exhaust must be located as high as practicable in the
structure above the level of the heater(s) to effectively dilute and remove the warm (rising)
products of combustion. The exhauster should be as centrally located as practicable in the
zone of heaters. Schwank recommends a maximum 6:1 ratio of the horizontal distance between the exhauster and the furthest heater in a zone, to the height the heaters are mounted
above the floor . For example, if heaters are mounted 20 ft above the floor, then the exhaust
fan should be located no more than 120 ft from the furthest heater in the zone. Sufficient air
supply must be provided.
Exhauster Capacity:
USA: Natural or mechanical means shall be provided to supply and exhaust at least
4ft3/min/1000Btuh (0.38m3/min/kW) Natural Gas input of installed heaters [4.5ft3/
min/1000Btuh (0..43m3/min/kW) Propane input]. Some local codes may require an interlock to a dedicated exhaust fan. Consult your local code and ANSI Z223.1 latest edition
for all venting requirements and practices.
Canada: It is required that the heater(s) be electrically interlocked to dedicated exhaust
fan(s) by means of an Air Proving Switch. Exhaust fan(s) must be sized to create 300
cfm (8.5 cu m/min) exhaust for every 100,000 Btuh (30 kW) or any fraction thereof of
total input of installed equipment. Provide combustion and ventilation air supply compatible with exhaust volume . Consult the latest edition of CSA.B149.1 Section 7.22.
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9. GAS SUPPLY PIPING
WARNING
Install and connect gas lines in accordance with local, state, provincial and national codes (ANSI
Z223.1/NFPA 54 in USA; B149.1 in Canada).
Incorrect installation and connection of gas lines
may results in fire, explosion, property damage, injury or death
Do not install any gas piping or wiring in the heat zone directly above the heater.
Do not subject heater controls to leak test pressures when checking the main supply piping.
A. Gas piping must be sized to provide adequate input capacity to all heaters and appliances
in the system and at the pressure indicated in Table 3 below.
IMPORTANT: Minimum supply line pressure at the inlet to the heater regulator must not be lower than 6.0 inches of water column pressure for natural gas and 12” w.c. for propane. The supply gas pressure must be
checked with all heaters in operation.
B. Provide a 1/8 in (3.2 mm) NPT plugged tapping, accessible for test gauge connection, immediately upstream of the gas supply connection to the heater.
C. It is recommended to install an approved flexible connector between the heater and gas
piping - available as option from Schwank or from your local supplier.
D. A drip-leg prior to the inlet connection to the heater must be provided in the gas line.
E. On propane-fired units, a main line filter is recommended.
F. Piping joint compounds must be resistant to the action of natural gas or LPG
G. TEST FOR LEAKS: Apply soap suds solution to all connections and joints and if bubbles
appear, leaks have been detected and must be corrected. DO NOT USE A MATCH OR
OPEN FLAME OF ANY KIND TO TEST FOR LEAKS. NEVER OPERATE THE HEATER
WITH LEAKING CONNECTIONS. Leak test according to local or national codes.
DO NOT use pressure greater than 1/2 psig to pressure check the heater.
The supply system should be checked first with heater turned “OFF” followed by another
check with heater turned “ON”.
WARNING
GAS CONVERSION
This heater may be field converted from one fuel gas to another (natural gas or
LPG). Conversion must be accomplished with a kit available from the manufacturer . Contact your local distributor for the kit that is specific to the model installed. Conversion may include changing of the air restrictor as well as the orifice and gas valve spring. Follow the instructions supplied with the conversion kit.
Gas conversion must only be done by a trained gas service technician, according
to all local and national codes. Incorrect conversion may result in fire, explosion,
property damage, injury or death
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GAS SUPPLY PRESSURE: The maximum supply pressure must be limited to 14 inches w.c.
(0.51 psi). If the line pressure is above 14 inches w.c. then a separate pressure reducing regulator must be used - follow all codes. The minimum pressure at the inlet to the heater regulator
must be equal to or greater than 6.0 inches w.c. for NG and 12 inches w.c. for LP. A sealed
regulator is supplied with the heater which maintains the proper manifold pressure when the
main burner is operating under the following pressures:
TABLE 3
LINE PRESSURE ( “ w.c.)
MANIFOLD PRESSURE
inches w.c.
AT TAP IN GAS VALVE
MINIMUM
MAXIMUM
NATURAL GAS
6.0
14.0
5.0
PROPANE GAS
11.0
14.0
10.0
10 ELECTRICAL REQUIREMENTS AND THERMOSTAT CONTROL
All electrical installations must meet local codes and the latest edition Electrical Code PART 1
CSA C22.1 in Canada and ANSI/NFPA N0 70 in the U.S.A..
TRANSFORMER SPECIFICATIONS
Single heater requires 24 Volt, 60 Hz electrical transformer sized at 40 VA.
Multiple heaters in a zone are powered by a single transformer. The proper transformer is 24
Volt AC, 60 Hz, sized at 40 VA for the first heater plus 20VA for each additional heater in the
zone - round up the calculated value to the next higher available sized transformer. For example, four heaters in a zone require a transformer of : 1 x 40VA + 3 x 20 VA = 100 VA . It is not
recommended to install more than 12 heaters per zone.
PROPER WIRING POLARITY MUST BE MAINTAINED, particularly when grouping the heaters
in a zone. Total wiring distances of up to 200' must use minimum 16 gauge electrical wire, and
wiring distances of over 200' must use minimum 14 gauge electrical wire. The heater must be
electrically grounded in accordance with local and national electrical codes. Malfunction of the
heating system will result if the voltage varies by more than +10% or -10%.
The heater can be controlled by a line voltage thermostat, a 24 volt thermostat or “off-on”
switch. Total load of all heaters must be considered in determining the required contact rating
of the controlling thermostat or switch.
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11. INSTALLATION
A. Properly size and install ventilation as per Section 8, gas supply as outlined in Section 9,
previous page, and electrical supply as per Section 10 above.
B. Ensure adequate clearance around air openings into the combustion chamber
C. The ignition control assembly is shipped in the carton with the heater. Assemble the gas
valve / ignition control assembly to the heater at the gas-supply union.
D. Suspended infrared heaters shall be fixed in position independent of gas and electric supply
lines. Hangers and brackets shall be of non-combustible material. Heaters subject to vibration shall be provided with vibration-isolating hangers.
E. Suspension hardware must be of adequate capacity to support the weight of the heater see Table 4 next page. Typical suspension chain is #8 Jack Chain (60 lb work load rating)
and/or #2 Lion Chain (also called “Double Loop” Chain) (115 lb work load rating).
F. For Seismic & Wind condition suspension see Figure 7 page 18
G. Mounting at an angle of up to 30°: see Figure 6 page 18
 Rotate on the short axis only - long axis must always be horizontal
 The venturi side of the heater must be in the upper position when angle mounted
 The ‘center of gravity’ of the heater allows angle mounting up to 30° using the suspension tabs attached to the heater
E. Mounting at an angle greater than 30° up to 45°: see Figure 6 page 18
 Rotate on the short axis only - long axis must always be horizontal
 The gas-supply/venturi side of heater must be in the upper position when angle
mounted
 The heater requires an Angle Mounting Bracket (JO-0331-XX - available as an optional accessory) for angle mounting over 30° up to 45° - the Angle Mounting
Bracket bolts to the suspension tabs on the heater - see Figure 6 page 18
F. Mount heaters to structure by using non-combustible mounting hardware such as that illustrated in FIGURE 5 on page 18.
G. Observe the minimum clearances to combustibles as per the Clearance To Combustibles
section and Figure 1 and Table 1 pages 6, 7.
H. In locations used for the storage of combustible materials, signs shall be posted to specify
the maximum permissible stacking height to maintain required clearances from the heater
to the combustible materials. SEE PAGE 8
I. Connect heater to the main gas line. It is recommended to use a 1/2" flexible connector
(available as option from Schwank) to absorb gas line expansion and any vibration from the
building. The flexible gas connector must be formed into a smooth ‘C’ shape.
J. Mount thermostat at desired location, away from direct infra-red rays of heater. If the thermostat is located on a cold wall, place sufficient insulation behind the thermostat.
K. Test gas line for leaks by using gas pressure test and/or soap test and as per all local and
national codes. Ensure gas pressure meets the requirements outlined in Section 9.
When testing the main gas line pressure, ensure the gas shut-off valve is “OFF”, otherwise damage to the combination gas valve can result.
L. Test fire the heating system by following the lighting instructions on the next page and on
heater.
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16
FIGURE 4: DIMENSIONS: primoSchwank & supraSchwank
TABLE 4: DIMENSIONS / WEIGHT / CAPACITY
primoSchwank
MODEL
primoSchwank 10
primoSchwank 15
primoSchwank 20
primoSchwank 30
supraSchwank
MODEL
supraSchwank 10
supraSchwank 15
supraSchwank 20
supraSchwank 30
‘A’
In.
[cm]
‘S’
In.
[cm]
23.75" 21.7"
[60.3] [55.1]
34.50" 32.6"
[87.6] [82.8]
45.62" 43.5"
[116] [110.5]
67.32"
65"
[171]
[165]
‘A’
In.
[cm]
‘S’
In.
[cm]
23.87" 21.7"
[60.6] [55.1]
34.60" 32.6"
[87.9] [82.8]
45.75" 43.5"
[116] [110.5]
67.5"
65"
[171]
[165]
CAPACITY
WEIGHT
Lbs.
[kg]
GAS
TYPE
INPUT
Btuh [kW]
IR OUTPUT
Btuh [kW]
23.5
[10.7]
33.6
[15.2]
40.3
[18.3]
54.9
[24.9]
NG
LPG
NG
LPG
NG
LPG
NG
LPG
37,500 [11]
34,100 [10]
56,000 [16]
51,000 [15]
75,000 [22]
68,500 [20]
113,000 [33]
103,000 [30]
24,600 [7.2]
22,370 [6.6]
35,400 [10.4]
32,230 [9.4]
49,050 [14.4]
44,800 [13.1]
76,500 [22.4]
69,730 [20.4]
CAPACITY
WEIGHT
Lbs.
[kg]
GAS
TYPE
INPUT
Btuh [kW]
IR OUTPUT
Btuh [kW]
37
[17]
53
[24]
62
[28]
82
[37]
NG
LPG
NG
LPG
NG
LPG
NG
LPG
29,500 [9]
27,000 [8]
44,000 [13]
40,500 [12]
59,000 [17]
54,500 [16]
88,500 [26]
81,500 [24]
22,800 [6.7]
20,850 [6.1]
34,630 [10.1]
31,870 [9.3]
46,730 [13.7]
43,160 [12.6]
71,700 [21.0]
66,100 [19.4]
17
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FIGURE 5: TYPICAL SUSPENSION HARDWARE (supplied by others)
EYE BOLT THRU BEAM
BEAM CLAMP
EYE OR HOOK
FIGURE 6: SUSPENDING HEATER
FIGURE 7: SEISMIC & WIND SUSPENSION
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PIPE RING
BAR JOIST CLAMP
12. LIGHTING INSTRUCTIONS
A Open the isolation valve in the main gas line and turn gas control knob on the combination
gas valve to the “ON” position.
B Switch on electrical circuit by turning the thermostat to the highest temperature setting.
C The heater should attempt ignition and remain lit within thirty seconds. Note that the corresponding exhaust fan is operating properly.
D If ignition does not occur, then cut off electrical power by turning the thermostat to off position.
WARNING
If heater back-fires during operation it must be turned off
immediately.
Indication of back-firing:
A. Loud ignition noise, then followed by distinct hissing sound.
B. Little or no visible burning on the ceramic
tile.
C. Combustion is taking place inside the
burner body.
Cause & remedy of back-firing:
A. Improper gas pressure entering the venturi
tube = test & remedy gas pressure.
B. Breakage of a ceramic tile and or gasket =
replace damaged part.
C. Faulty sealing of the ceramic tile to the
burner body, caused by breakdown of gasket material = contact your Schwank distributor.
13. SHUT DOWN INSTRUCTIONS
A. Turn off electrical circuit for temporary shutdown.
B. Turn off the electrical circuit, close gas stop-cock in gas supply line, and turn gas control knob to
the “OFF” position for complete shut-down.
14. DISCOLORATION OF HEATER BODY
Under certain conditions in some locations/environments, surface discoloration may occur on the
heater body where the products of combustion discharge from the heater. This discoloration is
due the deposit of ambient air borne particulate or gases that have passed through combustion. The combustion of fuel gas in a clean environment will not cause any discoloration. The
discoloration does not affect the operation of the heater nor the manufacturer’s warranties.
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15. FENWAL 35-60 - WIRING DIAGRAM - 24V CONTROL (Honeywell Control previous page)
Fenwal Control Terminal Designation
TH
Thermostat / 24V Supply Input
GND
System Ground
V1
Valve Power
V2
24V Supply Neutral
NC
Alarm
LED
S1
Remote Flame Sensor
Steady on Internal Control Failure
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Error Mode
2 flashes
Flame with No Call for heat
3 flashes
Ignition Lockout
16. FENWAL 35-60 - WIRING DIAGRAM - 120V CONTROL (Honeywell Control previous page)
LED
Error Mode
Steady on Internal Control Failure
2 flashes
Flame with No Call for heat
3 flashes
Ignition Lockout
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17. SERVICE GUIDE
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.
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.
Servicing of heater is essential for continued efficient operation. Servicing should be performed
at minimum annually by qualified service personnel.
A. Visually inspect the tiles for cracks or blockage:
 A crack or blockage will appear as a ‘dark’ line or spot on the tile surface during operation
B. Clean the ceramic tile with compressed air. Avoid directing air stream at the gasket material
between tile and heater body. The air pressure must be lower than 20 psi.
C. Clean the venturi tube with compressed air.
D. Clean the reflectors.
E. Confirm gas and electrical supplies are at required settings - see Sections 9 and 10
F. Ensure that the gas valve is operating properly and that no particulate matter is fouling the
seating of the valve and allowing gas leakage - replace valve if necessary.
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18. TROUBLESHOOTING GUIDE
SET THERMOSTAT TO CALL FOR HEAT
IS THE HEATER BURNING?
THE SYSTEM
STOP.
YES
IS
WORKING
PROPERLY.
NO
→CHECK FOR DARK SPOTS OR LINES ON
THE TILE SURFACE
→’DARK’ AREAS REPRESENT CRACKS OR
BLOCKAGE OF THE TILE
→SEE ’SERVICE’ SECTION 15
IS THERE LINE VOLTAGE TO
THE THERMOSTAT CONTROL?
→CHECK CIRCUIT BREAKERS OR FUSE
→CHECK ON/OFF SWITCH
→CHECK NIGHT TIME SET BACK CONTROL
NO
YES
→CHECK ELECTRICAL CONNECTION
FROM THERMOSTAT TO FAN MOTOR
→CHECK THERMOSTAT, REPLACE IF
NECESSARY
IS THERE VOLTAGE TO THE
FAN SYSTEM?
NO
YES
→CHECK EXHAUST FAN MOTOR, REPLACE
IF NECESSARY
IS FAN MOTOR OPERATING?
NO
YES
IS THERE VOLTAGE TO THE
TRANSFORMER?
→CHECK ELECTRICALCONNECTION
TO TRANSFORMER
→CHECK LINE VOLTAGE TO PRIMARY
SIDE OF TRANSFORMER
NO
YES
IS THERE VOLTAGE FROM TRANSFORMER TO AIR-PROVING SWITCH?
→CHECK ELECTRICAL CONNECTION FROM
TRANSFORMER TO AIR SWITCH
→CHECK TRANSFORMER, REPLACE IF
NECESSARY
NO
YES
CONT’D
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IS THERE VOLTAGE FROM AIRPROVING SWITCH TO IGNITION
CONTROL MODULE?
NO
YES
→CHECK ELECTRICAL CONNECTION FROM AIR
SWITCH TO IGNITION CONTROL MODULE.
→ENSURE LOW VOLTAGE WIRES ARE
PROPERLY INSTALLED, WIRING POLARITY
IS CRITICAL
→CHECK VA RATING ON THE TRANSFORMER.
→ENSURE AIR HOSE IS CONNECTED
PROPERLY FROM A I R
SWITCH
TO
EXHAUST FAN
→CHECK AIR SWITCH, REPLACE IF
NECESSARY
→ENSURE THE IGNITER GAP IS 1/4" WIDE
(6MM)
→ENSURE THE FLAME SENSOR IS WITHIN
1/4” TO 1/8" ABOVE CERAMIC TILE
→CHECK SPARK IGNITER CE RAMIC FOR
CRACK, REPLACE SPARK IGNITER IF NECES
SARY
→CHECK HI-VOLTAGE WIRE C O N N E C T I O N
FROM SPARK IGNITER TO IGNITION MODULE
→ENSURE HIGH VOLTAGE S P A R K S
ARE
GENERATED ON THE IGNITION CONTROL
TERMINAL BY FOLLOWING THE STEPS AS
SHOWN BELOW:
-SHUT OFF ELECTRICAL POWER
-REMOVE THE HI-VOLTAGE WIRE ON THE
IGNITION CONTROL TERMINAL
IS THERE A SPARK AT IGNITION
SPARK IGNITER?
NO
YES
WARNING: BEFORE REMOVING HI-VOLTAGE
WIRE, ELECTRICAL POWER TO THE SYSTEM
MUST BE SHUT OFF. THIS TERMINAL CARRIES
15,000 AC VOLTS.
 TURN ON ELECTRICAL POWER
 PLACE A METAL CONDUCTOR 1/8" AWAY
FROM THE HI-VOLTAGE TERMINALS
WARNING: THE HANDLE ON THE METAL
CONDUCTOR MUST BE HEAVILY INSULATED.
A LONG SCREW DRIVER WITH THICK PLASTIC
INSULATION
HANDLE IS IDEAL FOR THIS
APPLICATION.
 IF NO SPARKING OCCURS ACROSS THE
GAP TO THE METAL CONDUCTOR, THEN
THE IGNITION CONTROL IS DEFECTIVE.
REPLACE WITH NEW IGNITION CONTROL. SHUT OFF ELECTRICAL POWER AND RECONNECT THE HI-VOLTAGE WIRE.
CONT’D
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→CHECK ELECTRICAL WIRES FROM IGNITION
IS THERE VOLTAGE FROM IGNITION
CONTROL TO COMBINATION GAS
VALVE?
CONTROL TO COMBINATION GAS VALVE
→CHECK IGNITION CONTROL, REPLACE IF
NO
NECESSARY
YES
IS GAS COMING THROUGH
ORIFICE ON THE HEATER?
→ENSURE ALL GAS VALVES ARE OPEN
NO
YES
→CHECK SPARK IGNITER FOR CRACKS,
DOES THE IGNITION CONTROL
TERMINATE THE SPARKING
PROCESS AFTER THE HEATER IS
OPERATING?
REPLACE SPARK IGNITER IF NECESSARY
→ENSURE THE SENSING WIRE IS SECURELY
CONNECTED TO THE SENSING PROBE
→CLEAN THE SENSING PROBE ON THE SPARK
IGNITER
→ENSURE THE FLAME SENSOR IS WITHIN 1/4"
ABOVE THE CERAMIC TILE
→CHECK FLAME SIGNAL WITH METER, IF LOW
CHANGE SENSOR
→REPLACE WITH NEW IGNITION CONTROL
UNIT IF OTHER CHECKS ARE OK
NO
YES
DOES HEATER SHUT DOWN
AFTER IGNITION CEASES?
→CHECK FLAME SIGNAL USING A METER
INSTALLED IN SERIES WITH SENSOR CABLE,
CHECK (MICROAMPS) STRENGTH OF SIGNAL
FOR 1.5uA MINIMUM
YES
NO
STILL HAVING TROUBLE
OPERATING THE HEATER?
→IF SIGNAL IS LOW REPLACE SENSOR AND
WIRE
→REPEAT THE ABOVE TROUBLE SHOOTING
PROCEDURES
→IF THE PROBLEM PERSISTS, CONTACT YOUR
SCHWANK DISTRIBUTOR.
YES
NO
TROUBLESHOOTING
COMPLETE
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19. HIGH ALTITUDE INSTALLATION
This heater not to be installed at altitude above:
NG = 6,800 feet; LPG = 4,500 feet
USA: The factory installed orifice for this appliance is approved for altitudes zero to 2000
feet above sea level. When installed above 2000 feet, refer to information below.
Canada: The factory installed orifice for this appliance is approved for altitudes zero to
4500 feet above sea level. When installed above 4500 feet, refer to information below.
When this appliance is installed above the standard altitude stipulated for the USA or Canada,
the input must be de-rated by 4% for each 1000 ft above sea level. The orifice must be
changed according to the chart below - ensure you search the correct model. Check with your
local utility regarding the gas supply and the de-rating of this appliance.
FOR USE AT ALTITUDES ABOVE (FEET)
Gas Orifice Drill Size / Part#
MODEL
Supplied
USA Only
0
2000
primoSchwank 10
NG
2.65 mm
JO-0310-NG
2.60 mm
JO-1260-MM
2.57 mm
2.53 mm
2.49 mm
2.45 mm
JO-1257-MM JO-1253-MM JO-1249-MM JO-1245-MM
primoSchwank 10
LPG
1.67 mm
JO-0310-LP
1.64 mm
JO-1164-MM
1.62 mm
1.60 mm
JO-1162-MM JO-1160-MM
primoSchwank 15
NG
3.20 mm
JO-0313-NG
3.14 mm
JO-1314-MM
3.10 mm
3.06 mm
3.01 mm
2.96 mm
JO-1310-MM JO-1306-MM JO-1301-MM JO-1296-MM
primoSchwank 15
LPG
2.10 mm
JO-0313-LP
2.06 mm
JO-1206-MM
2.04 mm
2.01 mm
JO-1204-MM JO-1201-MM
primoSchwank 20
NG
3.75 mm
JO-0311-NG
3.68 mm
JO-1368-MM
3.64 mm
3.59 mm
3.53 mm
3.48 mm
JO-1364-MM JO-1359-MM JO-1353-MM JO-1348-MM
primoSchwank 20
LPG
2.43 mm
JO-0311-LP
2.39 mm
JO-1239-MM
2.36 mm
2.32 mm
JO-1236-MM JO-1232-MM
primoSchwank 30
NG
4.55 mm
JO-0312-NG
4.47 mm
JO-1447-MM
4.41 mm
4.35 mm
4.29 mm
4.22 mm
JO-1441-MM JO-1435-MM JO-1429-MM JO-1422-MM
primoSchwank 30
LPG
2.90 mm
JO-0312-LP
2.84 mm
JO-1284-MM
2.81 mm
2.77 mm
JO-1281-MM JO-1277-MM
supraSchwank 10
NG
2.35 mm
JU-0319-NG
2.31 mm
JU-1231-MM
2.28 mm
2.25 mm
2.21 mm
2.18 mm
JU-1228-MM JU-1225-MM JU-1221-MM JU-1218-MM
supraSchwank 10
LPG
1.50 mm
JU-0319-LP
1.47 mm
JU-1147-MM
1.45 mm
1.43 mm
JU-1145-MM JU-1143-MM
supraSchwank 15
NG
2.85 mm
JU-0318-NG
2.80 mm
JU-1280-MM
2.76 mm
2.73 mm
2.68 mm
2.64 mm
JU-1276-MM JU-1273-MM JU-1268-MM JU-1264-MM
supraSchwank 15
LPG
1.85 mm
JU-0318-LP
1.82 mm
JU-1182-MM
1.79 mm
1.77 mm
JU-1179-MM JU-1177-MM
supraSchwank 20
NG
3.35 mm
JU-0320-NG
3.29 mm
JU-1329-MM
3.25 mm
3.20 mm
3.16 mm
3.10 mm
JU-1325-MM JU-1320-MM JU-1316-MM JU-1310-MM
supraSchwank 20
LPG
2.18 mm
JU-0320-LP
2.14 mm
JU-1214-MM
2.11 mm
2.08 mm
JU-1211-MM JU-1208-MM
supraSchwank 30
NG
4.05 mm
JU-0319-NG
3.98 mm
JU-1398-MM
3.93 mm
3.87 mm
3.81 mm
3.75 mm
JU-1393-MM JU-1387-MM JU-1381-MM JU-1375-MM
supraSchwank 30
LPG
2.60 mm
JU-0319-LP
2.55 mm
JU-1255-MM
2.52 mm
2.49 mm
JU-1252-MM JU-1249-MM
26
4000
5000
6000
DO NOT INSTALL
DO NOT INSTALL
DO NOT INSTALL
DO NOT INSTALL
DO NOT INSTALL
DO NOT INSTALL
DO NOT INSTALL
DO NOT INSTALL
DO NOT INSTALL AT ALTITUDE ABOVE 6,800 FEET
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3000
USA & CANADA*
20. SEQUENCE OF OPERATION FOR FENWAL 35-60 DSI CONTROL
Start up - Heat Mode:
On a call for heat the Fenwal 35-60 control will reset, perform a self check routine, flash the
diagnostic LED for up to four seconds. The gas valve and spark are energized commencing
the trial for ignition period. When flame is detected during the trial for ignition, spark is shutoff
immediately and the gas valve remains energized. The thermostat and main burner flame are
constantly monitored to assure the system continues to operate properly. When the thermostat is satisfied and the demand for heat ends, the gas valve is de-energized.
Flame Failure - Multi Trial Model:
Should the main burner fail to light, or the flame is not detected during the first trial for ignition
period, the gas valve is de-energized and the control goes through an interpurge delay before
another ignition attempt. The control will attempt two additional ignition trials before going into
lockout and the valve relay is de-energized.
Recovery from lockout requires a manual reset by either resetting the thermostat or removing
24 volts for a period of 5 seconds. If the thermostat is still calling for heat after one hour the
control will automatically reset and attempt to ignite the burner again.
Flame Failure - Re-Ignition:
If the established flame signal is lost while the burner is operating, the control will respond
within 0.8 seconds. The HV spark will be energized for a trial ignition period in an attempt to
relight the burner.
If the burner does not light the control will make two more attempts to relight the burner before
de-energizing the gas valve. If the burner does not relight, the control will go into lockout as
noted above in “Failure to light”. If flame is re-established, normal operation resumes. Multi-try
models will allow three trials for ignition including interpurge delay between trials.
Flame current is the current
which passes through the flame
from the sensor to ground. The
minimum flame current necessary to keep the Fenwal 35-60
system from lockout is 0.7 microamps (µA). To measure the
flame current, connect analog
DC microammeter to the FCFC+ terminals.
Meter should read 0.7 µA or
higher. If the meter reads below
“0” on scale, meter leads are
reversed. Disconnect power
and reconnect meter leads for
proper polarity.
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Cautions:
1. Ceramic insulators should not be in or close to the flame.
2. Electrode assemblies should not be adjusted or disassembled. Electrodes should have a
gap spacing of 1/8”- 3/16” (3.12± 0.81 mm). If this spacing is not correct, the assembly
must be replaced. Electrodes are preset and NOT field adjustable.
3. Exceeding the temperature limits can cause nuisance lockouts and premature electrode
failure.
The control must be secured in an area that will experience a minimum of vibration and remain below the maximum operating temperature of 160°F.
21. SPARK IGNITION CIRCUIT
The step-up transformer in the ignition control provides spark ignition at 30,000 volts (open
circuit). To check the spark ignition circuit, proceed as follows.
1 Shut off gas supply to the gas control
2 Disconnect the ignition cable at the ignition control stud terminal to isolate the circuit from
the spark igniter or igniter/sensor
3 Prepare a short jumper lead, using heavily insulated wire such as ignition cable
CAUTION
In the next step, DO NOT allow fingers to touch either
the stripped end of the jumper or the stud terminal. This is a very
high voltage circuit and electrical shock can result.
1 Perform this test immediately upon energizing the system before the ignition control goes
into safety lockout and interrupts the spark circuit. Touch one end of the jumper firmly to
the ignition control GND terminal. (DO NOT remove the existing ground lead.) Slowly
move the other end of the jumper wire toward the stud terminal on the ignition control to
establish a spark.
2 Pull the wire away from the stud and note the length of gap at which spark discontinues.
3 A spark length of 1/8 in. (3mm) or more indicates satisfactory voltage output. If no arc can
be established, or the maximum spark is less than 1/8 in. (3mm), and power to the ignition
control input terminals was proved, replace the ignition control.
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22. COMMISSIONING REPORT
THIS APPLIANCE HAS BEEN FACTORY TESTED PRIOR TO SHIPMENT.
HOWEVER, IT IS NOT A “PLUG-IN” APPLIANCE AND REQUIRES FIELD ADJUSTMENT
AND COMMISSIONING TO ENSURE SAFE AND EFFICIENT OPERATION.
A QUALIFIED GAS SERVICE TECHNICIAN MUST COMMISSION THE APPLIANCE AND
COMPLETE THE COMMISSIONING REPORT.
CONFIRM THAT THE APPLIANCE IS INSTALLED ACCORDING TO ALL LOCAL AND NATIONAL CODES AND THE INSTRUCTIONS IN THIS MANUAL.
ENSURE THAT SITE CONDITIONS MEET THE SPECIFICATIONS IN THIS MANUAL REGARDING:





SUSPENSION
CLEARANCES TO COMBUSTIBLE MATERIAL
VENTING AND AIR SUPPLY
ELECTRICAL SUPPLY, WIRING, AND CONNECTION
GAS CONNECTION, SUPPLY AND MANIFOLD PRESSURE
THIS COMMISSIONING REPORT MUST BE SUBMITTED TO OUR TECHNICAL SERVICES DEPARTMENT PRIOR TO ANY CALL FOR TECHNICAL ASSISTANCE.
FAX THE COMPLETED REPORT TO 1-866-361-0523
Call Technical Services: 1-877-446-3727
INSTALLING CONTRACTOR: …………………………………………………………….
COMMISSIONING TECHNICIAN: ………………………………………………………..
ADDRESS: …………………………………………………………….
CITY: …………………………………………………………….
STATE/PROV: …………………………………………………………….
PHONE: …………………………………………………………….
CELL: …………………………………………………………….
DATE INSTALLED: ……………………………
PROJECT NAME: …………………………………………………………….
PROJECT CITY: …………………………………………………………….
HEATER MODEL #: …………………………………………………………….
HEATER SERIAL #: …………………………………………………………….
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TO BE COMPLETED BY THE LICENSED INSTALLER:
HIGH INTENSITY
LUMINOUS
HEATER COMMISSIONING REPORT
TYPE OF GAS:
NG
LP
DOES BUILDING HAVE A NEGATIVE CONDITION:
YES
NO
WILL HEATER BE EXPOSED TO WELDING FUMES:
YES
NO
IS HEATER EXPOSED TO CHEMICAL OR CORROSIVE ATMOSPHERE:
YES
NO
IS AN OPEN FLAME COMPATIBLE WITH THE INSTALLED LOCATION:
YES
NO
MINIMUM CLEARANCES CONFORM AS PER I&O MANUAL:
YES
NO
IF THIS IS A HIGH ALTITUDE AREA WHAT IS THE ALTITUDE ABOVE SEA LEVEL
Feet
IS HEATER SHORT AXIS HORIZONTAL WITH THE VENTURI ON TOP:
YES
NO
IS HEATER INTERLOCKED WITH AN EXHAUST FAN SYSTEM:
YES
NO
IS FAN SYSTEM 3 CFM PER 1000Btu/hr OF THE TOTAL HEAT LOAD:
YES
NO
WILL HEATER BE AFFECTED BY OVERHEAD CRANES / VIBRATION:
YES
NO
IS GAS SUPPLY LINE ADEQUATELY SIZED FOR SYSTEM VOLUME:
YES
NO
HAVE GAS LINES AND BRANCHES BEEN PURGED OF AIR:
YES
NO
THIS HEATER WAS FIELD TEST FIRED WITHOUT ANY MALFUNCTION:
YES
NO
INLET GAS SUPPLY PRESSURE WITH HEATER OPERATING:
WC"
GAS VALVE OUTLET (Manifold) PRESSURE WITH HEATER OPERATING:
WC"
HAS THE WIRING POLARITY BEEN MAINTAINED THROUGHOUT:
YES
WHAT IS THE VOLTAGE READING AT THE IGNITION MODULE:
NO
VOLTS
WHAT IS THE FLAME SIGNAL STRENGTH IN uA FROM SENSOR:
uA (microamps)
IS THE HEATER CONTROLLED BY A THERMOSTAT:
YES
NO
IS THE THERMOSTAT STRATEGICALY LOCATED:
YES
NO
TOTAL HEATERS SUPPLIED FROM ONE SINGLE TRANSFORMER:
WHAT IS THE RATING OF THE TRANSFORMER IN VA:
TOTAL
V.A.
WHAT IS THE TOTAL LENGTH OF THE LOW VOLTAGE WIRING:
WHAT IS THE GAUGE OF THE LOW VOLTAGE WIRING:
FEET
GAUGE
THIS HEATER MUST HAVE GOOD ELECTRICAL GROUNDING:
1-866-361-0523
* FAX COMPLETED FORM TO TECHNICAL SERVICES: CANADA
- 905-712-8336 USA - 706-554-9390
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23. OPTIONAL ACCESSORIES
PART #
JL-0772-XX
Line Voltage Thermostat
TruTemp Thermostat
 Senses and averages ambient and
radiant temperatures for true comfort
control of IR systems
 Automatic unoccupied setback of 9°F
(5°C) - can be overridden
JM-0150-XX
FOR SECURITY TO PREVENT UNAUTHORIZED OPENING:
2 - Stainless Steel Tamper Proof Screws for TruTemp Thermostat,
including 1 Tool. (only one Tool is necessary for most projects)
JM-0180-XX
2 - Stainless Steel Tamper Proof Screws for TruTemp Thermostat.
(2 for each additional Thermostat on project)
JM-0180-AA
JS-0569-WR
Low Voltage Digital Thermostat (24 Volts)
31
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Flexible Gas connector 1/2” x 24”
JL-0771-XX
Pressure Equalizer Venturi Cover
 For drafty locations (near
overhead doors, etc)
JO-0368-XX
Control Center / Transformer Relay
JM-0300-XX
AT72D-40VA Transformer for single
heater
JL-0776-XX
Transformer Size
100 VA Transformer
up to 4
JL-0778-XX
150VA Transformer
up to 6
JL-0779-XX
200 VA Transformer
up to 9
JL-0780-XX
250 va transformer
up to 11
JL-0781-XX
350 VA Transformer
up to 16
JL-0781-AA
500 VA Transformer
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Heaters
Serviced
32
JL-0781-BB
33
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24. PARTS LIST
15
LP
NOTE: ORIFICES (Item 3) and
AIR RESTRICTOR PLATES
(Item 5) are different for
PRIMO & SUPRA
4
IM
PR
y
od ed
b
ter sulat
a
e n
- H not i
O
3
P
SU
6
h
r
wit ove
y
c
d
b o te e l
d
e
t
ds
ula inize
s
: In lum
A
a
R
7
5
15
1
2a
8
9
2
16a
11
12
16
16b
13
Reverberating Screens
& Retainers
- SUPRA ONLY
17a
17
16b
35
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24. PARTS LIST
ITEM
1
2
2a
3
3
4
5
5
6
7
8
9
PART NUMBER
PART DESCRIPTION
JO-0370-XX CERAMIC TILE
JO-0343-XX TILE RETAINER STRIP (2 PER 3 TILES)
JO-0344-XX TILE HOLDER (2 PER 3 TILES)
PRIMO - MAIN BURNER ORIFICE
JO-0310-LP PRIMO 10 LP
JO-0310-NG PRIMO 10 NG
JO-0313-LP PRIMO 15 LP
JO-0313-NG PRIMO 15 NG
JO-0311-LP PRIMO 20 LP
JO-0311-NG PRIMO 20 NG
JO-0312-LP PRIMO 30 LP
JO-0312-NG PRIMO 30 NG
SUPRA - MAIN BURNER ORIFICE
JU-0319-LP SUPRA 10 LP - 1.50mm
JU-0319-NG SUPRA 10 NG - 2.35mm
JU-0318-LP SUPRA 15 LP - 1.85mm
JU-0318-NG SUPRA 15 NG - 2.85mm
JU-0320-LP SUPRA 20 LP - 2.18mm
JU-0320-NG SUPRA 20 NG - 3.35mm
JU-0321-LP SUPRA 30 LP - 2.60mm
JU-0321-NG SUPRA 30 NG - 4.05mm
ORIFICE HOLDER
JO-0307-XX PRIMO / SUPRA 10
JO-0307-AA PRIMO / SUPRA 15
JO-0308-XX PRIMO / SUPRA 20
JO-0309-XX PRIMO / SUPRA 30
PRIMO - VENTURI AERATION RESTRICTOR PLATE
JO-0375-XX MODEL PRIMO 10 (LP) (L.A.) # 45
JO-0375-XX MODEL PRIMO 15 (LP) (L.A.) # 45
JO-0376-XX MODEL PRIMO 15 (NG) (L.A.) # 48
JO-0377-XX MODEL PRIMO 20 (LP) (L.A.) 55 X 73
SUPRA - VENTURI AERATION RESTRICTOR PLATE
JO-0373-XX MODEL SUPRA 10 (LP) # 37
JO-0373-XX MODEL SUPRA 10 (NG) # 40
JO-0373-XX MODEL SUPRA 15 (LP) # 40
JO-0377-XX MODEL SUPRA 20 (LP) # 55
JO-0377-XX MODEL SUPRA 30 (NG) # 55
JO-0315-XX ½" X ½" UNION
JS-0588-XX ½" X 90 DEGREE ELBOW
JO-0316-XX ½' NIPPLE
COMBINATION GAS VALVE
JL-0701-XX HONEWELL VR8205A2065B - 5"W.C. NG
JL-0703-XX HONEWELL VR8205A2016B - 11"W.C. LP
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MODEL
PRIMO ONLY
PRIMO ONLY
PRIMO ONLY
PRIMO ONLY
PRIMO ONLY
PRIMO ONLY
PRIMO ONLY
PRIMO ONLY
SUPRA ONLY
SUPRA ONLY
SUPRA ONLY
SUPRA ONLY
SUPRA ONLY
SUPRA ONLY
SUPRA ONLY
SUPRA ONLY
PRIMO ONLY
PRIMO ONLY
PRIMO ONLY
PRIMO ONLY
SUPRA ONLY
SUPRA ONLY
SUPRA ONLY
SUPRA ONLY
SUPRA ONLY
24. PARTS LIST - continued
ITEM
10
PART NUMBER
PART DESCRIPTION
GASKET SET (NOT SHOWN)
JO-0345-XX PRIMO / SUPRA 10 - STAINLESS STEEL GASKET SET
JO-0348-XX PRIMO / SUPRA 15 - STAINLESS STEEL GASKET SET
JO-0346-XX PRIMO / SUPRA 20 - STAINLESS STEEL GASKET SET
JO-0347-XX PRIMO / SUPRA 30 - STAINLESS STEEL GASKET SET
11
JX-0206-XX CONTROL BRACKET
12
DIRECT SPARK IGNITION CONTROL
JP-2573-FW DSI - FENWAL 3 TRIAL 24VAC - SUPRA-3T 10 to 30 - Serial #: SU3Txxxxxx
JX-0202-XX HONEYWELL S87C CONTROL - SUPRA 10 to 30 - Serial #: SUXXxxxxxx
JP-2573-FW FENWAL 35-60 3-TRIAL DSI CONTROL
JX-0201-DD FENWAL 2462D901-029 DOUBLE IGNITION CONTROL - supraSchwank 40
JX-0202-PX HONEYWELL S87C DS1140 SYNETEK CONTROL REPLACEMENT KIT FOR JX13
HIGH VOLTAGE WIRE - SPARK (NOT SHOWN)
JO-0323-XX STANDARD
14
WIRES WITH TERMINALS (NOT SHOWN)
JX-0229-VA LOW VOLTAGE WIRE - VALVE
JX-0229-GR LOW VOLTAGE WIRE - GROUND
15
JO-0305-XX IGNITER SENSOR
SUPRA ONLY - SCREENS AND RETAINERS
16
JU-0363-KX SCREEN KIT WITH TWO RETAINERS
16a
JU-0363-XX REVERBERATING SCREEN
16b
JU-0364-XX SCREEN RETAINER
17
JU-0363-KA IGNITER END SCREEN KIT WITH TWO RETAINERS
17a
JU-0363-AA IGNITER END REVERBERATING SCREEN
* PLEASE SEE YOUR CURRENT PRICE LIST
37
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LIMITED WARRANTY CERTIFICATE
GAS-FIRED INFRA-RED LUMINOUS SERIES: PRIMOSCHWANK / SUPRASCHWANK
The Manufacturer warrants that this product is free from defects in material or workmanship under normal use and service subject to
the terms of this document.
FIVE YEAR WARRANTY
Subject to the conditions and limitations stated herein, during the term of this limited warranty, we will supply any component part
(at our option a new or repaired component part) of the heater, as defined below, excluding any labor, which the Manufacturer’s examination determines to be defective in workmanship or material for a period of five years (5 years) from the date of installation,
unless otherwise specified below. This warranty applies to the heater’s original owner, and subsequent transferees and only if the
unit is installed and operated in accordance with the printed instructions accompanying the unit and in compliance with all applicable installation, building codes and good trade practices. Warranty is only applicable to Schwank components, other parts are limited
to their own Manufacturers’ warranty. (1 year)
FIFTEEN YEAR WARRANTY
The Manufacturer warrants the Ceramic Tiles for a period of fifteen years (15 years)
WHAT IS NOT COVERED
This warranty does not cover heating products improperly installed, misused, exposed to or damaged by negligence, accident, corrosive or contaminating atmosphere, water, excessive thermal shock, impact, abrasion, alteration or operation contrary to the owner’s
manual or if the serial number has been altered, defaced or removed. This warranty shall not apply if the input to the heating product exceeds by more than 2% of the rated input on the rating plate. The Manufacturer shall not be responsible for any expenses, including service, labor, diagnosis, analysis, material or transportation charges incurred during removal or reinstallation of this product, or any of its components or parts. All labor or service charges shall be paid by the owner. The Manufacturer shall not be liable
for any default or delay in performance by its warranty caused by any contingency beyond its control, including war, government
restrictions, or restraints, strikes, fire, flood, acts of God, or short or reduced supply of raw materials or products.
WARRANTY PROCEDURE
To establish the installation date for any purpose under this Limited Warranty, you must retain the original records that can establish
the installation date of your unit. If you do not provide such documents, the start date of the term of this Limited Warranty will be
based upon the date of unit manufacture, plus thirty (30) days. Failure to maintain the equipment through regular annual service
maintenance by a qualified service technician shall void the warranty.
LIMITATIONS AND EXCLUSIONS
This document contains all warranties made by the Manufacturer and may not be varied, altered or extended by any person. There
are no promises, or agreements extending from the Manufacture other than the statements contained herein. THIS WARRANTY IS
IN LIEU OF ALL WARRANTIES EXPRESSED OR IMPLIED, TO THE EXTENT AUTHORIZED BY THE LAWS OF THE
JURISDICTION, INCLUDING SPECIFICALLY THE WARRANTIES OR MERCHANTIBILITY OF FITNESS FOR A PARTICULAR PURPOSE.
It is understood and agreed that the Manufacturer’s obligation hereunder is limited to repairing or replacing parts determined to be
defective as stated above. In no event shall the Manufacturer be responsible for any alleged personal injuries or other special, incidental or consequential damages. As to property damages, contract, tort or other claim the Manufacturer’s responsibility shall not
exceed the purchase priced paid for the product.
All replacement parts will be warranted for the unused portion of the warranty coverage period remaining on the applicable unit.
Some Authorities do not allow certain warranty exclusions or limitations on how long a warranty lasts or the exclusions or limitations of incidental or consequential damages. In such cases, the above limitations or exclusions may not apply to you and are not
intended to do so where prohibited by law. This warranty gives you specific legal rights. You may also have other rights which
vary by each jurisdiction.
SCHWANK 5285 BRADCO BLVD. MISSISSAUGA, ON, L4W 2A6
Ph: 905-7121-4766
SP-DSUA-BX-03B
PRIMO-SUPRA WARRANTY
March 2006
RL: 3B
KH
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