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42

CL3 

Series

Field Wiring Supply Voltage

Before proceeding with electrical connections, ensure that the supply voltage, frequency, phase and 

current capacity meet the requirements specified on the rating plate. A dedicated line voltage supply 

with properly sized wire should run directly from the main electrical panel to the heater. The power to 

the unit must be protected with a circuit breaker appropriate for the load. The unit must be electrically 

grounded in accordance with local codes, or in their absence, with the latest edition of the National 

Electrical Code, ANSI / NFPA 70 and/or the Canadian Electrical Code CSA C22.1, latest edition.

The heater comes equipped with a supply cord to connect the main power supply. It is located at the 

rear of the heater’s burner box and utilizes a grounding prong. This plug must be connected into an 

appropriate outlet receptacle that is properly installed and grounded in accordance to local codes 

and ordinances.

The grounding receptacle must be installed within 5 feet of the heater’s service panel and located in 

the space occupied by the appliance. When plugging in the heater, make sure the supply cord is 

protected from damage, and keep all cords away from the heater’s surfaces and out of the clearances 

to combustibles zones (see page 9). When routing the electrical supply for the unit, ensure that it 

does not interfere or obstruct the heater’s service panel.

Thermostat Connection

NOTE: 

Different thermostats operate according to their particular features. Refer to the thermostat’s 

specifications for details.

Prior to connecting the thermostat wire to the heater, check to make sure the wires will be long 

enough to allow for the heater to freely expand and contract without causing undue strain on the 

wires or terminal. Use 18 gauge wire (or larger) that is suitable for a NEC Class 2 rating for thermostat 

connections.

Each CL3 series heater requires a two-stage thermostat rated for 24 VAC to operate. The heater 

comes standard with a terminal strip for making the thermostatic connection, located on the back 

panel. 

The power supply to the heater must be /- 5% of the voltage rating as indicated on the 

rating plate of the appliance. If input power does not meet these specifications, contact your utility 

company.

CAUTION

!

WARNING

!

Electric Shock Hazard

Do not force the three-prong plug into the grounded outlet, modify the plug, or use an 

adapter. Never operate this appliance if the cord or plug is damaged.

3.0

 Installation

 

 Field Wiring Supply Voltage 

 Thermostat Connection

Thermostat Location

The location of the thermostat should be determined by the desired heating requirements and be 

mounted on an inside wall five (5) feet above the finished floor. Locate the thermostat in a 

conspicuous location, away from where it could be influenced by heat from the unit or other sources, 

Summary of Contents for CL3 Series

Page 1: ...his heater in indoor living or sleeping quarters etc Installation of a tube heater system in residential indoor living spaces may result in property damage serious injury asphyxiation or death CL3 Ser...

Page 2: ...le Assembly and Placement 22 Final Heater Assembly 23 Venting 24 Vertical Venting Category I 26 Horizontal Venting Category III 28 Common Venting Category I 30 Common Venting Category III 31 Optional...

Page 3: ...ht Length U Tube Length Standard Weight lbs Recommended Mounting Height Combustion Chamber Black Coated Radiant Emitter Tube s Black Coated CL3 30 65 Nat or Prop 65 50 Nat 55 Prop 31 5 17 9 185 11 to...

Page 4: ...t BTU output when determining clearances Minimum end clearance for all models is 12 inches Maximum mounting angle is 45 Keep cover in place LLTCL019 1M 12 18 CDS 50 000 W 1 side shield W 2 side shield...

Page 5: ...FOR PARTS LIST AND METHOD OF INSTALLATION AVOID EQUIPMENT FAILURE THIS 10 FT TUBE IS THE CNG LINED COMBUSTION CHAMBER THIS TUBE MUST BE THE FIRST TUBE FOLLOWING THE BURNER CONTROL BOX INSTALLER The co...

Page 6: ...oof heater No tube heater may be used in a Class 1 or Class 2 Explosive environment Consult your local fire marshal insurance carrier and other authorities for approval if the proposed installation is...

Page 7: ...in accordance with the latest edition of the Standard for Aircraft Hangars ANSI NFPA 409 In Canada refer to CAN CGA B149 1 and B149 2 In aircraft storage and servicing areas heaters shall be installe...

Page 8: ...Clearances to Combustibles A critical safety factor to consider before installation is the clearances to combustibles Clearance to combustibles is defined as the minimum distance you must have betwee...

Page 9: ...es per hour a minimum distance of 18 from the top of the heater to the ceiling is required Consult the factory for more information 0 Mounting Angle 45 Mounting Angle 0 Mounting Angle with 1 Side Shie...

Page 10: ...eral guidelines NFPA 30A NFPA 52 and all other applicable standards should also be consulted Contact the factory for more information When designing an infrared radiant heating system consider the fol...

Page 11: ...3 1 for dimensions Chart 3 1 Recommended Mounting Heights and Coverages NOTE This chart is provided as a guideline Actual conditions may dictate variation from this data Model Maximum Input BTU h Reco...

Page 12: ...elongated tube hanger TP 19E on the tapered CNG combustion tube with liner s 4 O D end The spacing between the burner control box mounting brackets and the 4 tube hanger should be 2 4 4 Mark location...

Page 13: ...82C Suspension Point Suspension Point Suspension Point Chart 3 2 Heater Mounting Requirements and Weights Refer to page 18 for U bend configuration dimensions Model Dimension Straight Configuration S...

Page 14: ...N THGHxx Pass the loop end of the cable through the hook Thread the other end through the loop the locking fastener the hanger and back up through the locking fastener Adjust to appropriate length NOT...

Page 15: ...ngle with two suspension points using two optional Brass Knuckle P N BK fittings 1 double loop chains and S hooks U Tubes can be mounted from a single suspension point using an optional Single Mountin...

Page 16: ...s and each subsequent tube will utilize one 1 hanger Refer to page 23 for tube installation sequence 2 Slide tube clamps onto radiant tubes see figure 3 7 Figure 3 6 Attach Hangers Figure 3 7 Attach T...

Page 17: ...haust end NOTE If it is difficult to mate the tubes they may be installed incorrectly 4 Center tube clamps over the seam where two radiant tube sections connect If necessary rotate tube clamps so they...

Page 18: ...ure 3 11 U Bend and Elbow Dimensions Chart 3 4 Overall Dimensions for Heaters Configured With U Bend Tube Length Dimension B Notes 30 ft 17 9 213 Requires P N 5EA SUB 40 ft 22 9 273 N A 50 ft 27 5 329...

Page 19: ...1 double loop chain P N THCS to anchor Check that it is securely connected 4 Attach chain assemblies and S hooks to mounting brackets on the burner control box Adjust chain lengths until level and in...

Page 20: ...ng sheet metal screws except at the expansion joint see page 23 NOTE Installer to supply sheet metal screws 4 Attach reflector end caps with polished finish inward to each end of the reflector run Sec...

Page 21: ...Detroit Radiant Products Company Tube Heater Accessory Guide or online at www detroitradiant com Figure 3 16 Reflector Shield Accessories 3 0 Installation Common Reflector Accessories Reflector Assemb...

Page 22: ...the baffle 90 to lock the baffle sections together 5 Repeat this process with all remaining baffle sections to complete assembly Figure 3 17 Assembling the Baffles Figure 3 18 Inserting the Baffles T...

Page 23: ...s 24 32 for complete venting information Final Heater Assembly Chart 3 6 Tube Installation Sequence Baffle Location and Secured Joints for Reflectors 30 Foot 40 Foot 50 Foot Double Swaged Radiant Tube...

Page 24: ...sion or other deficiencies that can cause hazards The vent pipe should be corrosion resistant galvanized steel of a thickness that meets the National Fuel Gas Code Minimum thickness for connectors var...

Page 25: ...n the venting system Have all vent pipe seams or connectors sealed with high temperature silicone sealant approved for at least 550 F field supplied and fastened together with at least three 3 corrosi...

Page 26: ...nted heaters that are Category I must be connected to a chimney or vent complying with a recognized standard or lined masonry or concrete chimney with a material acceptable to the authority having jur...

Page 27: ...223 1 Gas Vent Termination criteria if roof pitch exceeds 9 12 24 in Min Double Wall B Vent Roof Heater 1 in Minimum Clearance Use Attic Insulation Shield Field Supplied Fire Stop Spacer 8 Sheet Metal...

Page 28: ...provincial and local codes The venting system must be provided by the installer and should be comprised of single wall venting materials with a thickness of no less than 26 gauge All joints must be s...

Page 29: ...t to public walkways must terminate a minimum of 7 feet above grade level The vent cap must be a minimum of 6 inches from the sidewall of the building Vent must be a minimum of 36 inches below or exte...

Page 30: ...elbow installed within the common portion of the vent carrying system reduces the maximum common vent capacity by 10 Refer to NFPA 54 IFEC tables 11 2 and 11 3 for capacity The vent connector capaciti...

Page 31: ...m must follow all guidelines for Category III venting as listed on pages 28 29 The vent connector should be routed in the most direct route from the units to the common vent Where two or more vent con...

Page 32: ...with the electrical supply line to the heaters enabling both to function simultaneously The minimum clearance between the air intake and the exhaust terminal is 4 feet NOTE When installing in a U tube...

Page 33: ...ls such as chlorinated or fluorinated hydrocarbons typical sources are refrigerants solvents adhesives degreasers paints paint removers lubricants pesticides etc are present in the atmosphere High hum...

Page 34: ...2 90 directional changes elbows in the system Seal all joints with metallic tape or silicone sealant Wrap the tape two full turns around the vent pipe Slope air intake pipe inch per foot upward or dow...

Page 35: ...es heaters must utilize outside air for combustion Figure 3 25 Outside Combustion Air Vertical Intake Side View Figure 3 26 Outside Combustion Air Sidewall Intake Side View Non contaminated outside ai...

Page 36: ...In the United States refer to the latest edition of the ANSI Z223 1 NFPA 54 Standard and in Canada refer to the latest edition of the CAN CGA B149 1 Standard Supply gas piping to the unit should conf...

Page 37: ...atest edition or CSA B149 1 and B149 2 Support all gas piping with pipe hangers metal strapping or other suitable material Do not rely on the heater to support the gas pipe When connecting piping to t...

Page 38: ...nt Do not use the gas piping to electrically ground the heater Installation of the Gas Line to the Heater 1 Install a sediment trap drip leg in the supply line at the lowest spot prior to the gas ball...

Page 39: ...30 40 75 75 000 BTU h 3 5 5 0 74 4 CL3 30 40 50 80 80 000 BTU h 3 5 5 0 76 2 CL3 30 40 50 85 85 000 BTU h 3 5 5 0 81 0 Chart 3 9 allows for a 0 3 W C pressure drop in the supply pressure from the buil...

Page 40: ...controls must never exceed 14 W C 1 2 PSI Supply pressures greater than 14 W C can damage the controls resulting in personal injury property damage or death WARNING Testing for gas leaks with an open...

Page 41: ...is appliance check the existing wiring replace if necessary If any of the original wire supplied with the appliance must be replaced it must be replaced with copper wiring material having a rating of...

Page 42: ...upply for the unit ensure that it does not interfere or obstruct the heater s service panel Thermostat Connection NOTE Different thermostats operate according to their particular features Refer to the...

Page 43: ...e needed for thermostats that require constant power 24VAC N Low High EXTERNAL TRANSFORMER field supplied THERMOSTAT To 120VAC grounded outlet To 120VAC grounded outlet To 120VAC grounded outlet N Bur...

Page 44: ...properly grounded as per the National Electrical Code ANSI NFPA 70 or Canadian Electrical code CSA C22 1 Part 1 9 9 The unit is properly mounted to a permanent structure able to bear the weight of the...

Page 45: ...ly lights the burner This heater cannot be lighted manually Do not try to light the burner by hand Verify minimum inlet gas supply pressure 7 Turn on all other gas appliances that are on the same supp...

Page 46: ...ted manually Do not try to light the burner by hand Verify manifold pressure 7 After the unit has successfully ignited wait five minutes prior to taking any readings The heater must be in a steady sta...

Page 47: ...all of your tools 9 9 Leave the Installation Operation Maintenance and Parts Manual with the owner or end user Chart 3 10 Manifold Pressure Pressure Equivalents 1 W C equals 058 oz in2 equals 2 49 mb...

Page 48: ...2 m above MSL sea level in the United States Contact the factory for installations above these elevations WARNING Explosion hazard This heater must be converted by a trained gas installation and servi...

Page 49: ...he lowest setting 3 Turn OFF all electrical power to the appliance 4 Turn manual shutoff clockwise to OFF 5 Wait 5 minutes to clear out any gas If you smell gas STOP Follow the safety information foun...

Page 50: ...e to flow to a higher output single stage must be energized as well The thermostat determines which stage to maintain for the desired temperature Shut Down When the thermostat is satisfied the fan wil...

Page 51: ...sure switch error Some LED codes have a time delay before the LED will flash Some LED codes have a time delay before the LED will flash LED CODE FAULT STATUS FAULT CODE DELAY Initial flash on power up...

Page 52: ...and the 24 V terminal plug Repair the wiring between power in and transformer Yes No Yes No Yes Yes Does the igniter warm up and glow red Is the igniter physically damaged Replace igniter Check volta...

Page 53: ...24 V across the TH and ground terminals on the circuit board Correct wiring Is the circuit board sending 120 V to the fan Is the fan obstructed Remove ob struction Is the pressure switch stuck in the...

Page 54: ...ated on the heater s rating plate Is gas pressure OK Does the burner stay on for approximately 8 seconds and then shut off Does the burner come on and turn off immediately 1 or 2 seconds Check to make...

Page 55: ...em No No Yes Yes No Yes Purge gas line No Is there 24 V across the GROUND and HIGH HIGH to COM on heaters with optional isolation relays on the terminal strip located on the outside of the control box...

Page 56: ...1 2 Female Male Flare Fitting TP 17 Sight Glass Kit TP 85 1 2 Male Male Flare Fitting TP 19E 4 Elongated Wire Hanger with Tension Spring TP 105 Aluminum Reflector End Cap TP 20C 10 Aluminum Reflector...

Page 57: ...r Color Code GREEN TP 832 Thermostat Terminal Strip TP 3093 8 23 Cage Nut Qty 4 TP 851B 35 66 Diagnostic Circuit Board TP 3094A 8 32 x 1 2 Zinc Coated Steel Knurled Thumb Screw Qty 4 TP 1018 Different...

Page 58: ...he gas connection to the heater Check for leaks damage fatigue or corrosion Do not operate if repairs are necessary and turn off gas supply to the heater Contact service personnel To check gas tightne...

Page 59: ...passageways Burner Check for proper ignition burner flame and flame sense Flame should extend directly outward from burner without floating or lifting Wiring Check electrical connections for tightnes...

Page 60: ...60 CL3 Series Maintenance Log Date Maintenance Performed Replacement Parts Required 5 0 Maintenance Maintenance Log...

Page 61: ...61 CL3 Series Notes 5 0 Maintenance Notes...

Page 62: ...62 CL3 Series 5 0 Maintenance This page intentionally left blank...

Page 63: ...adiant Products Company has made a diligent effort to provide product information and illustrate the products in this literature accurately however such information and illustrations are for the sole...

Page 64: ...mply could result in personal injury asphyxiation death fire or property damage Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance In loc...

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