Solaronics, Inc., Gas Fired Infrared Radiant Heaters Customizable Master Word Specifications in 2004 Spec
Format for Download. 010090
These specifications are provided to assist in specifying Solaronics, Inc. products. A qualified design
professional should review and edit the specifications to satisfy project requirements.
For more information, contact: Solaronics, Inc., 704 Woodward Avenue, Rochester, Michigan MI 48307;
phone: 248-651-5333, fax: 248-651-0357, website: www.solaronicsusa.com, email:
sales@solaronicsusa.com.
SECTION 23 55 23 - GAS-FIRED RADIANT HEATERS (FORMERLY SECTION 15542)
*** NOTE TO SPECIFIER *** Delete [bracketed] items below not relevant to this project; add others as
required.
PART 1 - GENERAL
1.1
RELATED DOCUMENTS
A.
1.2
Drawings and general provisions of the Contract, including General and Supplementary
Conditions, and Division 01 Specification Sections apply to this Section.
SUMMARY
A.
Section includes:
1.
2.
B.
Related Sections:
1.
2.
3.
1.3
[Gas-Fired Infrared Radiant Tube Heaters.]
[Gas-Fired High-Intensity Infrared Heaters.]
Division 23, Section 23 10 00 "Facility Fuel Systems".
Division 23, Section 23 51 00 "Breechings, Chimneys, and Stacks".
Division 26, Section 26 05 00 "Common Work Results for Electrical".
REFERENCES
A.
Applicable Standards:
1.
American National Standards Institute (ANSI):
a.
b.
2.
Z83.19 - Gas-Fired High-Intensity Infrared Heaters.
Z83.20 - Gas-Fired Low-Intensity Infrared Heaters.
National Fire Protection Association (NFPA):
a.
b.
3.
Underwriters Laboratories Inc. (UL):
a.
b.
1.4
B.
C.
D.
E.
F.
Product Data: Include rated capacities, operating characteristics, physical dimensions,
weights, furnished specialties, and accessories.
Shop Drawings: Include field wiring diagrams of power, signal, and control wiring.
Coordination Drawings: Include anchorages and attachments to structure and to supported
equipment based on input from equipment installers.
Field Quality-Control Test Reports: From Contractor.
Operation and Maintenance Data: For gas-fired radiant heaters include installation,
operation and maintenance manuals.
Warranties: Special warranties specified in this Section.
QUALITY ASSURANCE
A.
Building Codes and Standards.
1.
2.
3.
4.
5.
6.
B.
C.
D.
1.6
486A - Wire Connectors and Soldering Lugs for Use with Copper
Conductors.
486B - Wire Connectors for Use with Aluminum Conductors.
SUBMITTALS
A.
1.5
54 - National Fuel Gas Code.
70 - National Electric Code.
[Gas-Fired Low-Intensity Infrared Radiant Tube Heaters shall be Design Certified by
CSA to ANSI Z83.20. The supplier shall provide the CSA Certification Number and
the heaters shall bear the CSA Seal of Certification.]
[Gas-Fired High-Intensity Infrared Heaters shall be Design Certified by CSA to ANSI
Z83.19. The supplier shall provide the CSA Certification Number and the heaters
shall bear the CSA Seal of Certification.]
Heaters shall comply with current Occupational Safety and Health (OSHA)
Requirements.
Heaters shall be furnished and installed in accordance with NFPA 54, local codes,
building drawings and manufacturer's recommendations.
Natural or mechanical means shall be provided to supply and exhaust at least 4
CFM per 1000 Btu/hour input of installed heaters.
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 combustibles.
Source Limitations: Obtain gas-fired radiant heaters through one source from a single
manufacturer.
Product Options: Drawings indicate size, profiles, and dimensional requirements of gas-fired
radiant heaters and are based on the specific system indicated. Refer to Division 1, Section
"Product Requirements."
Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA
70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked
for intended use.
WARRANTY
A.
B.
Special Warranty: Manufacturer's standard form in which manufacturer agrees to repair or
replace components of gas-fired radiant heater that fails in materials or workmanship within
specified warranty period.
Warranty Period:
1.
[Gas-Fired Infrared Radiant Tube Heaters:]
a.
b.
c.
2.
[MT and ST models: Ten (10) years on the heater's burner core, heat
exchanger, and combustion chamber tubes; and two (2) years on all the
heater control assembly components.]
[SMT and SST models: Ten (10) years on the heater's burner core, five (5)
years on the heat exchanger, and combustion chamber tubes; and one (1)
year on all the heater control assembly components.]
[MTSA/MTUA and GQ models: Ten (10) years on the heater's burner core,
five (5) years on the heat exchanger, and combustion chamber tubes; and
two (2) years on all the heater control assembly components.]
[Gas-Fired High-Intensity Infrared Heaters:]
a.
[One (1) year on the entire heater, including burner and controls.]
PART 2 - PRODUCTS
2.1
MANUFACTURERS
A.
In other Part 2 articles where subparagraph titles below introduce lists, the following
requirements apply for product selection:
1.
2.2
Manufacturers: Subject to compliance with requirements, provide products by the
manufacturers specified.
GAS-FIRED LOW INTENSITY INFRARED RADIANT TUBE HEATERS (SECTION 235523.13)
A.
Manufacturers:
1.
Solaronics, Inc. - Basis of design specification.
a.
Heaters shall be SOLARONICS:
i.
ii.
iii.
iv.
v.
vi.
b.
c.
2.
B.
[TRUE DUAL MT-SERIES (2-stage)],
[SUNTUBE IV VERSAMOUNT ST-SERIES (single-stage)],
[STAINLESS-STEEL TRUE DUAL SMT-SERIES (2-stage)],
[STAINLESS-STEEL SUNTUBE IV SST-SERIES (single-stage)],
[ALUMINIZED TRUE DUAL MTUA/MTSA-SERIES (2-stage)], or
[SUNTUBE IV GLOBAL QUALITY GQ-SERIES (single-stage)]
Gas-Fired Infrared Radiant Tube Heaters of: series model numbers, inputs
in MBTUH, lengths and configurations;
Manufactured by Solaronics, Inc., Rochester, Michigan 48307; or
comparable product by the following:
Or equal.
Description: Heater factory assembled, piped, wired, fully tested and ready to install and
complying with ANSI Z83.20.
1.
[2-Stage Control: Heaters shall provide 2-stage control of Both Gas and Air
for the most efficient and complete combustion at both high and low-fire
rates.]
a.
b.
2.
CSA Approval: Heater Design Certified by and bearing the label of CSA (formerly
AGA, the American Gas Association).
a.
b.
c.
3.
b.
b.
[Natural Gas: Heaters designed to satisfactorily operate on natural gas at a
minimum supply inlet gas pressure of 7 inches water column (W.C.) and at
a maximum supply inlet gas pressure of 14 inches W.C.]
[Propane Gas: Heaters designed to satisfactorily operate on propane gas at
a minimum supply inlet gas pressure of 11 inches water column (W.C.) and
at a maximum supply inlet gas pressure of 14 inches W.C.]
Burner Safety Controls:
1.
Gas Control Valve:
a.
b.
2.
3.
4.
D.
[Natural Gas: Heaters designed to operate without adjustments when
burning natural gas having a heat value of 1000 BTU per cubic foot with a
specific gravity of .65.]
[Propane Gas: Heaters designed to operate without adjustments when
burning propane gas having a heat value of 2500 BTU per cubic foot with a
specific gravity of 1.53.]
Supply Inlet Gas Pressure:
a.
C.
For commercial / industrial use.
For either indoor or outdoor installation.
For vented or unvented use.
Type of Gas: Heater designed and built to burn fuel gas with characteristics same
as those of gas available at project site.
a.
4.
[Performance: Highest possible emitter/heat exchanger temperature at both
high-fire and low-fire rates for higher radiant efficiency and lower fuel
usage.]
[Benefits: Stop energy overshoot, improve comfort, cut energy
consumption, and provide more heat quickly when temperature falls
sharply.]
[2-stage, regulated redundant-solenoid 115-VAC electric gas valve
containing pressure regulator and manual shutoff in one body, and no pilot.]
[Single-stage, regulated redundant-solenoid 115-VAC electric gas valve
containing pressure regulator and manual shutoff in one body, and no pilot.]
Blocked Vent Safety: Differential pressure switch in burner safety circuit to stop
burner operation with high discharge pressure or insufficient combustion air.
Indicator Lights: Burner-on indicator light.
Safety Shutoff: Automatic shut-off of gas flow to burner when gas supply or power
supply interrupted.
Burner Type: Non-condensing, gravity-vented or sidewall-vented, power gas burner, with
the following features:
1.
2.
Burner CSA certified for use in unvented mode or vented modes with vertical or
horizontal vent terminal.
Burner Ignition:
a.
b.
3.
4.
5.
Burner Core: Assembly of durable materials, for high efficiency complete
combustion, maximum heat transfer, extremely quiet operation, and extended life.
Sight glass for burner flame and spark ignitor observation from floor level.
Burner Blower:
a.
b.
c.
6.
E.
Direct spark ignition with electronic flame safety.
Direct spark ignitor durable to resist breakage.
Motor: Balanced-rotor, thermally protected, and permanently lubricated.
Blower Impeller: Statically and dynamically balanced.
Capable of drawing in outside combustion air without using additional
supply fans.
[MT propane, SMT, MTSA/MTUA propane, ST propane, SST and GQ propane
models: Inlet air collar supplied with burner control assembly to accept 4" O.D.
supply duct.]
Heater Controls:
1.
[MT, SMT and MTSA/MTUA models: 2-stage operation to include:]
a.
b.
c.
d.
e.
f.
2.
[ST, SST and GQ models: Single-stage operation to include:]
a.
3.
4.
5.
6.
7.
8.
[Total heater shutdown upon control lockout, including burner operation and
combustion air blower, where power interruption (reset thermostat) restarts
firing sequence.]
Direct spark ignition system with three (3) trials-for-ignition and upon loss of flame
sensing three (3) re-trials-for-ignition.
Flame Sensing: Independent sensing rod and circuit for reliability.
Controls isolated from combustion air to prevent corrosion from wet/dirty air.
Controls enclosed with a corrosion resistant housing.
Control enclosure permit easy access to controls from three sides by removing
cover.
Call for heat signal:
a.
b.
9.
[Operation: 2-stage control Both Gas and Air.]
[Input differential: 30% between low-fire and high-fire rates.]
[Purge Control: 30-second pre-purge and 120-second post-purge to remove
products of combustion.]
[Power Thermostat: Provide 24-volt power supply for 2-stage thermostat at
heater terminal board. No additional 24-volt power supply required.]
[Recycle: Automatic recycle after inadvertent shutdown.]
[Self-diagnostics: Ignition module include self-diagnostics and external LED
readout.]
[MT, SMT and MTSA/MTUA models: 24 VAC provided to thermostat by
heater itself for both low-heat and high-heat call signals.]
[ST, SST and GQ models: 115 VAC electrical power supply.]
Electrical Power:
a.
b.
c.
d.
10.
F.
[MT, MTSA/MTUA, ST and GQ models: Include electrical power cord with 3 copper
conductors extending 36 inches from control enclosure with 3-prong plug.]
Combustion Tubing:
1.
[MT, MTAS/MTAU, ST and GQ 65-100 MBTUH models: Combustion chamber
tubing of 4-inch diameter, 16 ga. wall thickness, Aluma-Therm.]
a.
2.
b.
3.
4.
[Material: Aluma-Therm (aluminum coated titanium alloy steel) tubing
coated with corrosion resistant 8% silicon/aluminum alloy, and meet MIL
500 hour salt spray test.]
[MT, MTAS/MTAU, ST and GQ 105-200 MBTUH models: Combustion chamber
tubing of 4-inch diameter, 14 ga. wall thickness, Aluma-Therm.]
a.
[Material: Aluma-Therm (aluminum coated titanium alloy steel) tubing
coated with corrosion resistant 8% silicon/aluminum alloy, and meet MIL
500 hour salt spray test.]
[Additional coating: tubing finished with a high emissivity rated, corrosion
resistant, black coating.]
[ST 40-60 MBTUH models: Combustion chamber tubing of 4-inch diameter, 12 ga.
(.109") wall thickness, black hot-rolled-steel.]
[SMT and SST models: Combustion chamber tubing of 4-inch diameter, 16 ga. wall
thickness, 304L stainless-steel.]
a.
G.
Volts: 115 VAC.
Phase: Single.
Hertz: 60 Hz.
Total Maximum Current Draw: 3 Amps.
[Additional coating: tubing finished with a high emissivity rated, corrosion
resistant, black coating.]
Emitter/Heat Exchanger Tubing:
1.
2.
Non-Condensing Emitter: No condensation forms from combustion in emitter/heat
exchanger tubing while at operating temperatures.
Heaters utilize downstream turbulator, factory installed, in the last 10-foot long
emitter/heat exchanger section.
a.
3.
4.
[MT and ST models Standard: Heat exchanger tubing of 4-inch diameter, 12 ga.
(.109") wall thickness, black hot-rolled-steel.]
[MT and ST models Alternate: Heat exchanger tubing of all Aluma-Therm finished
with a high emissivity rated, corrosion resistant, black coating.]
a.
b.
5.
Turbulator wave formed for optimal thermal efficiency.
[Material: Aluma-Therm (aluminum coated titanium alloy steel) tubing
coated with corrosion resistant 8% silicon/aluminum alloy, and meet MIL
500 hour salt spray test.]
[Additional coating: tubing finished with a high emissivity rated, corrosion
resistant, black coating.]
[SMT and SST models: Heat exchanger tubing of 4-inch diameter, 16 ga. wall
thickness, 304L stainless-steel.]
6.
H.
Tubing Connections:
1.
2.
3.
4.
I.
[MTSA/MTUA and GQ models: Heat exchanger tubing of 4-inch diameter, 16 ga.
(.065") wall thickness, aluminized-steel, and meet MIL 500 hour salt spray test.]
[MT and ST models: Clamps of two layers of 18 ga. (.052") thick aluminized-steel,
8" length, compression coupling design having uniform draw and pressure, with four
(4) 5/8"-11x2" zinc plated carriage bolts and nuts to hold 65 foot-pounds torque.]
[SMT and SST models: Clamps of two layers of stainless-steel, 8" length,
compression coupling design having uniform draw and pressure, with four (4) 5/8"11x2" stainless-steel carriage bolts and nuts to hold 65 foot-pounds torque.]
[MTSA/MTUA and GQ models: Flared/swaged joints with 3-inch tube overlap.
Flared end of tubes have two (2) clearance holes for two (2) multi-metal self-drilling
screws.]
[MTSA/MTUA and GQ models: The coupler joining burner and combustion chamber
tube 16 ga. (.065") wall thickness aluminized-steel, 8" length, meet MIL 500 hour
salt spray test, and have two (2) sets of two (2) clearance holes for two (2) multimetal self-drilling screws.]
Reflector:
1.
2.
Reflector geometrically shaped for not less than 91.7% reflectional efficiency.
Material:
a.
b.
3.
Mounting and Rotation:
a.
b.
c.
d.
e.
J.
[MT, MTSA/MTUA, ST and GQ models: Reflector .025" thick, #3003H25
aluminum Brite finish.]
[SMT and SST models: Reflector 20 ga., 304 stainless-steel, highly
polished.]
Reflector mountable to heater without use of tools.
Reflector mounting permit heater expansion, minimizing noise and/or
rattles.
[MT, MTSA/MTUA, ST and GQ models: Reflector held by .229" diameter
aluminized-steel wire hangers.]
[MT and ST models: Reflector sections independently rotatable from all
other sections, or overlapped between, or combination of both over system
length.]
[SMT and SST models: Mounting incorporate ability to rotate reflector up to
45 degrees, in either direction with tubing center as the axis of rotation.]
Venting:
1.
2.
[Unvented: Heaters indirectly vented by natural or mechanical means with supply
and exhaust of at least 4 CFM per 1000 Btu/hour input of installed heaters.]
[Vented: Heaters directly vented outdoors with insulated flue pipe.]
a.
b.
3.
4.
5.
6.
[Gravity-vented.]
[Sidewall-vented.]
[Connector at exit end of emitter/heat exchanger tubing for vent-pipe connection.]
[Dual venting on one thermostat: two (2) heaters controlled by one thermostat.]
[Dual venting with two thermostats: concentric vent for two (2) heaters controlled by
two (2) thermostats with vent cap for individual vent coupler.]
[Vent Terminal:]
a.
b.
K.
[Vertical.]
[Horizontal.]
Capacities and Characteristics:
1.
Gas Input:
a.
[Specify MBTUH (1000 Btu/hr).]
i.
ii.
2.
3.
4.
Gas Supply Piping Connection: 1/2 inch FPT.
Gas Connector: 36” long stainless steel flexible gas supply connector.
Altitude:
a.
b.
5.
[Sea level to 2000 feet.]
[Above 2000 feet.]
Total Combustion and Emitter/Heat Exchanger Tubing length:
a.
[Specify from 10 to 70 feet in 5-foot increments.]
i.
ii.
iii.
iv.
v.
vi.
vii.
viii.
ix.
x.
xi.
xii.
xiii.
6.
[2-stage models: 85/65, 100/65, 125/95, 150/100, 175/125, 200/145
MBTUH.]
[Single-stage models: 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95,
100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 155, 160,
165, 170, 175, 180, 185, 190, 195, 200 MBTUH.]
[Single-stage 40 MBTUH models: 10 feet.],
[Single-stage 40 MBTUH models: 15 feet.],
[2-stage 85/65 MBTUH models and single-stage 40 thru 85 MBTUH
models: 20 feet.],
[2-stage 85/65 MBTUH models and single-stage 65 thru 85 MBTUH
models: 25 feet.],
[2-stage 100/65 MBTUH and natural gas 125/95 MBTUH models
and single-stage 65 thru 100 MBTUH and natural gas 105 thru 130
MBTUH models: 30 feet.],
[2-stage 100/65 MBTUH and natural gas 125/95 MBTUH models
and single-stage 65 thru 100 MBTUH and natural gas 105 thru 130
MBTUH models: 35 feet.],
[2-stage 100/65, 125/95 and 150/100 MBTUH models and singlestage 65 thru 150 MBTUH models: 40 feet.],
[2-stage 125/95 and 150/100 MBTUH models and single-stage 100
thru 150 MBTUH models: 45 feet.],
[2-stage 125/95, 150/100, 175/125 and 200/145 MBTUH models
and single-stage 100 thru 200 MBTUH models: 50 feet.],
[2-stage 150/100, 175/125 and 200/145 MBTUH models and
single-stage 150 thru 200 MBTUH models: 55 feet.],
[2-stage 150/100, 175/125 and 200/145 MBTUH models and
single-stage 150 thru 200 MBTUH models: 60 feet.],
[2-stage 175/125 and 200/145 MBTUH models and single-stage
150 thru 200 MBTUH models: 65 feet.],
[2-stage 175/125 and 200/145 MBTUH models and single-stage
150 thru 200 MBTUH models: 70 feet.]
Configuration of Emitter/Heat Exchanger Tubing:
a.
b.
c.
L.
Accessories:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
2.3
[Straight Tube System.]
[U-Tube System.]
[L-Shaped System.]
Manual gas ball valve.
Mounting chain with S-hooks.
Indoor venting kit.
4-inch roof venting cap for single heater.
4-inch wall venting kit for single heater.
[MT, MTSA/MTUA, ST and GQ natural gas models: Inlet air collar to connect
combustion air ducting to burner.]
[MT, MTSA/MTUA, ST and GQ models: Blower motor enclosure, factory installed,
for harsh environments.]
4-inch roof combustion air supply kit for single heater.
4-inch wall combustion air supply kit for single heater.
90-degree 4-inch heater emitter/heat exchanger elbow for making "L" shaped
heater systems.
4x4x5-inch Y-coupler for dual venting to join two (2) heaters to one common 5-inch
vent using one (1) thermostat.
5-inch roof vent cap for dual venting two (2) heaters.
5-inch wall vent kit for dual venting two (2) heaters.
4x4x6-inch individual vent coupler (Y) to join two (2) heaters to one common or
individual 6-inch vent using one (1) or (2) thermostats.
6-inch roof vent cap for dual venting two (2) heaters.
6-inch wall vent kit for dual venting two (2) heaters.
Vent cap for individual vent coupler to independently vent two (2) heaters thru one
(1) 6-inch roof vent when using two (2) thermostats.
6-inch roof supply kit to supply combustion air for two (2) heaters.
6-inch wall supply kit to supply combustion air for two (2) heaters.
U-bend reflector assembly.
Corner reflector assembly for 90-degree heater elbow.
Parabolic reflector assembly to concentrate radiant infrared energy for high
mounting height applications or for spot heating.
Reflector side extension assembly.
End cap for reflector.
Outdoor kit.
Decorative grille kit.
GAS-FIRED HIGH INTENSITY INFRARED HEATERS (SECTION 235523.16)
A.
Manufacturers:
1.
Solaronics, Inc. - Basis of design specification.
a.
Heaters shall be SOLARONICS:
i.
ii.
b.
c.
[STK-SERIES (2-stage)] or
[K-SERIES (single-stage)]
Gas-Fired High-Intensity Infrared Heaters of series model numbers and
inputs in MBTUH;
Manufactured by: Solaronics, Inc., Rochester, Michigan 48307;
d.
2.
B.
Or equal.
Description: Heater factory assembled, piped, wired, fully tested and ready to install and
complying with ANSI Z83.19.
1.
[2-Stage Control: STK-SERIES (2-stage) heaters shall provide 2-stage control of
Both Gas and Air to provide the most efficient and complete combustion at both
high and low fire rates.]
a.
2.
3.
4.
5.
b.
6.
[Natural Gas: Heaters designed to operate without adjustments when
burning natural gas having a heat value of 1000 BTU per cubic foot with a
specific gravity of .65.]
[Propane Gas: Heaters designed to operate without adjustments when
burning propane gas having a heat value of 2500 BTU per cubic foot with a
specific gravity of 1.53.]
Supply Inlet Gas Pressure:
a.
b.
7.
[Performance: 2-stage heaters shall stop energy overshoot, improve
comfort and cut energy consumption when less heat is needed, yet provide
more heat quickly when temperature falls sharply.]
CSA Approval: Heater Design Certified by and bearing the label of CSA (formerly
AGA, the American Gas Association).
For commercial / industrial use only.
For indoor installation only.
Type of Gas: Heater designed and built to burn fuel gas with characteristics same
as those of gas available at project site.
a.
[Natural Gas: Heaters designed to satisfactorily operate on natural gas at a
minimum supply inlet gas pressure of 7 inches water column (W.C.) and at
a maximum supply inlet gas pressure of 14 inches W.C.]
[Propane Gas: Heaters designed to satisfactorily operate on propane gas at
a minimum supply inlet gas pressure of 11 inches water column (W.C.) and
at a maximum supply inlet gas pressure of 14 inches W.C.]
Design Features:
a.
b.
C.
Over 45 years of experience manufacturing gas-fired high-intensity infrared
heaters, or comparable product by the following:
Heaters capable of angle mounting from 5 to 30 degrees, without the use of
an additional reflector.
Heater of modular design employing multiple burners to achieve the
specified input.
Burner:
1.
Construction: Burner consists of ceramic combustion surface (emitter), aluminizedsteel plenum chamber with stainless-steel surface retainers, aluminized-steel
venturi tube, and aluminized-steel burner mounting bracket.
a.
b.
Plenum chamber of 20 ga. (.035") corrosion-free aluminized steel, onepiece fabrication and seamless no-weld construction.
Stainless-steel surface retainer of one-piece to hold the ceramic surface in
place around its entire perimeter.
c.
2.
D.
3.
4.
5.
2.
3.
Construction: Heater frame of 16 ga. (.065") corrosion-free aluminized steel and of
no-weld construction.
Design Features: Heater frame shall have double turned upper edge and two (2)
corner reinforcement brackets for rigidity.
Mounting Points: The side frames shall have four (4) 3/8" diameter holes for easy
mounting with S-hooks and chain.
Reflector:
1.
2.
3.
G.
Description: Ceramic combustion surface.
Performance: Emitter comply with ANSI Z83.19, Section 2.10 Radiant Coefficient,
without the use of a secondary re-radiating surface of either rods or screen.
Capability: Emitter capable of reaching temperatures up to 1850 degrees F (an
incandescent appearance) and withstand thermal shock when water quenched.
Design Features: Emitter of cordierite-based grooved ceramic with alternate rows of
230 perforations per square inch terminate at the bottom of slots making half the
flame below the top ceramic surface creating more contact between flame and
surface. This design increases ceramic surface temperature and radiant output with
lower gas input and greater resistance to drafts.
Installed Position: Emitter horizontal when heater installed at 0 degrees.
Main Frame:
1.
F.
Removability: Burners removable with a single screw for cleaning or replacement
without disconnecting any gas, electrical or hanging device.
Emitter:
1.
2.
E.
Burner mounting bracket of 14 ga. (.083") aluminized steel for holding the
burner assembly in place to achieve proper alignment of the surface,
venturi and orifice.
Material: Reflectors of 21 ga. (.032") highly polished Mirror Brite aluminum.
Reflectivity: Reflectors reflectivity of not less than 98%.
Design Features: Reflector of standard design (shape), with .352 square feet of
reflective area per linear foot, double turned edge for rigidity and mounted to heater
at factory.
Heater Controls: Control designation based on: gas type, number of stages, voltage, and
ignition type.
1.
[STN: natural gas, 2-stage, 24 VAC direct spark ignition control, 100% safety shut
off with flame monitoring, and 12 VA maximum power consumption.]
a.
2.
[STL: propane gas, 2-stage, 24 VAC direct spark ignition control, 100% safety shut
off with flame monitoring, and 12 VA maximum power consumption.]
a.
3.
[Control capable of 2-stage operation on low and high modes in conjunction
with a 2-stage microprocessor thermostat.]
[Control capable of 2-stage operation on low and high modes in conjunction
with a 2-stage microprocessor thermostat.]
[QSAN: natural gas, single-stage, 24 VAC direct spark ignition control, 100% safety
shut off with flame monitoring, and 6 VA maximum power consumption.]
4.
5.
6.
7.
[QSAL: propane gas, single-stage, 24 VAC direct spark ignition control, 100%
safety shut off with flame monitoring, and 6 VA maximum power consumption.]
[DSAN: natural gas, single-stage, 115 VAC direct spark ignition control, 100%
safety shut off with flame monitoring, and 6 VA maximum power consumption.]
[DSAL: propane gas, single-stage, 115 VAC direct spark ignition control, 100%
safety shut off with flame monitoring, and 6 VA maximum power consumption.]
[TAN: natural gas, single-stage, millivolt manual pilot ignition control, 100% safety
shut off of constant pilot and main burner(s) in case of pilot outage.]
a.
b.
c.
d.
8.
[TAL: propane gas, single-stage, millivolt manual pilot ignition control, 100% safety
shut off of constant pilot and main burner(s) in case of pilot outage.]
a.
b.
c.
d.
H.
[Gas regulator field adjustable.]
[Pilot flame concealed to protect it from drafts.]
[Control supplied with 35' of 18-2 wire and a millivolt thermostat.]
[Control operates with no external electrical power, but instead uses millivoltage generated by pilot flame.]
[Gas regulator field adjustable.]
[Pilot flame concealed to protect it from drafts.]
[Control supplied with 35' of 18-2 wire and a millivolt thermostat.]
[Control operates with no external electrical power, but instead uses millivoltage generated by pilot flame.]
Capacities and Characteristics:
1.
Gas Input:
a.
[Specify MBTUH = 1000 Btu/hr.]
i.
ii.
2.
3.
Gas Supply Piping Connection: 1/2 inch FPT.
Altitude:
a.
b.
I.
[2-stage models: natural gas 100/50, 150/100 and 200/100
MBTUH; propane gas 90/45, 120/80 and 160/80 MBTUH.]
[Single-stage models: natural gas 30, 35, 40, 45, 50, 55, 60, 70, 75,
80, 85, 90, 95, 100, 110, 120, 125, 130, 135, 150, 160, 175 and
200 MBTUH; propane gas 50, 70, 75, 80, 85, 90, 120 and 160
MBTUH.]
[Sea level to 2000 feet.]
[Above 2000 feet.]
Accessories: Certified by CSA for use with heater.
1.
2.
3.
4.
5.
6.
7.
Heat-Deflector Shield for heaters of 30 thru 100 MBTUH to reduce required
clearance to combustible materials above heater.
Secondary Re-radiating Wire Grid to improve heater performance in drafty areas
and increase efficiency.
Parabolic Reflector Extension to concentrate radiant infrared energy for high
mounting height applications or for spot heating.
Protective Screen for locations where foreign objects may damage the heater's
ceramic surface.
Stainless-steel flexible connector with manual valve.
Hanger chain with S-hooks.
Pre-assembled chain mounting kit.
2.4
TEMPERATURE CONTROL
A.
B.
C.
D.
E.
F.
G.
Wires and Cables: Specified in Division 23, Section "Control/Signal Transmission Media."
Sensor, Components, and Wiring: Specified in Division 23, Section "HVAC Instrumentation
and Controls."
[Thermostat: 2-stage, 24-VAC wall-mounting type with 50 to 90 degree F operating range.]
[Thermostat: Single-stage, 24-VAC wall-mounting type with 50 to 90 degree F operating
range.]
[Thermostat: Single-stage, 115-VAC wall-mounting type with 50 to 90 degree F operating
range.]
[Locking Thermostat Guard.]
[Control Transformer: 120 to 24-VAC.]
PART 3 - EXECUTION
3.1
EXAMINATION
A.
B.
3.2
INSTALLATION
A.
B.
C.
D.
E.
3.3
Examine roughing-in for radiant heater piping systems to verify actual locations of piping
connections before equipment installation.
Proceed with installation only after unsatisfactory conditions have been corrected.
Install radiant heaters in accordance Manufacturer's requirements in the Installation,
Operation, and Maintenance Manual supplied with each heater.
Install radiant heaters level and plumb.
Install and connect gas-fired radiant heaters and associated fuel and vent features and
systems according to NFPA 54, applicable local codes and regulations, and manufacturer's
written installation instructions.
Suspend Units: Suspend from substrate using chain hanger kits and building attachments.
Maintain manufacturer's required clearance to combustibles.
CONNECTIONS
A.
B.
C.
D.
E.
Piping installation requirements are specified in other Division 23 Sections. Drawings
indicate general arrangement of piping, fittings, and specialties.
Install piping adjacent to heater to allow service and maintenance.
Gas Piping: Comply with applicable requirements in Division 23, Section "Facility Fuel Gas
Piping." Connect gas piping to heater gas inlet; provide union with enough clearance for
burner removal and service. Provide CSA-approved flexible gas connector.
Connect vents according to Division 23, Section "Breechings, Chimneys, and Stacks."
Electrical: Comply with applicable requirements in Division 26 Sections.
1.
2.
F.
Install electrical devices furnished with heaters but not specified to be factory
mounted.
Install control and power wiring and conduit for controller, sensors, [mechanical
ventilation relays and interlock switches,] and heaters.
Ground equipment according to Division 26, Section "Grounding and Bonding for Electrical
Systems."
G.
3.4
Tighten electrical connectors and terminals according to manufacturer's published torquetightening values. If manufacturer's torque values are not indicated, use those specified in
UL 486A and UL 486B.
FIELD QUALITY CONTROL
A.
Manufacturer's Field Service: Engage a factory-authorized service representative to inspect
field-assembled components and equipment installation, including piping and electrical
connections.
1.
2.
3.
4.
Verify proper electrical earth grounding.
Verify electrical supply polarity is correct.
Test and adjust controls and safeties. Replace damaged and malfunctioning
controls and equipment.
Test Reports: Prepare a written report to record the following:
a.
b.
c.
3.5
COMMISSIONING
A.
B.
C.
D.
3.6
Review Manufacturer's instructions before commissioning or making any adjustments to the
heater.
Verify that gas-fired radiant heaters are installed and connected according to Manufacturer's
instructions.
Measure gas supply inlet pressure and adjust as necessary at startup per Manufacturer's
instructions.
Test and adjust controls and safeties. Replace damaged and malfunctioning controls and
equipment.
ADJUSTING
A.
B.
3.7
Test procedures used.
Test results that comply with requirements.
Test results that do not comply with requirements and corrective action to
achieve compliance with requirements.
Adjust initial temperature [and humidity] set points.
Adjust burner and other unit components following Manufacturer's instructions for optimum
heating performance and efficiency.
DEMONSTRATION
A.
Engage a factory-authorized service representative to train Owner's maintenance personnel
to adjust, operate, and maintain gas-fired radiant heaters. Refer to Division 01.
END OF SECTION 23 55 23 (FORMERLY SECTION 15542)