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HL2-DS

Series

5.0

Troubleshooting Guide

NOTICE

Bypassing any switch is intended for testing purposes only. Do not leave switch bypassed

during normal operation or the heater’s built-in safety mechanisms will be compromised.

Measure the voltage across

the red wire on the relay

board and ground on the

circuit board. Is there 24 V?

If the heater does not enter High Fire mode, check the following:

Check the power across the green

and black wires of the yellow

control cord. Is there 24 V?

Yes

Repair or replace the faulty

wiring or thermostat.

Yes

The valve is

faulty and must

be replaced.

The high fire relay is faulty

and must be replaced.

NOTE:

To confirm that the heater is not in high fire

mode, check the manifold pressure. If it is 3.5” (natural

gas) or 10” (propane), the indicator light is faulty and

should be replaced. If approximately 2.0” to 2.5”

(natural gas) or 5.0” to 6.5” (propane), the heater is in low

fire mode and the troubleshooting steps described here

should be followed.

Check to make sure gas pressure is within minimum and

maximum inputs, as indicated on the heater’s rating plate.

Is gas pressure OK?

Were the gas lines purged of air?

Is the heater properly

grounded? Is the heater’s

polarity correct?

With micro-ammeter, check amperage

at flame rod (or pins on circuit board).

Is it greater than 1.0

A (micro-amp)?

Check to make sure flame

sensor wire is OK and then

replace circuit.

Sensing rod is faulty or flame is weak.

Check to make sure heater is operating

at proper gas pressure as indicated on the

heater’s rating plate and then, if needed,

replace sensing rod.

Replace gas valve.

Yes

Correct problem.

Yes

Purge gas line.

Содержание HL2-DS Series

Страница 1: ... a commercial tube heater system in residential indoor spaces may result in property damage serious injury asphyxiation or death TheHL2 DSSeriesInfraredTubeHeaterisapositivepressure two stageradiantheatersystemdesigned for unvented use outdoors This manual provides specific information related to the HL2 DS series models All persons involved with the installation operation and maintenance of the h...

Страница 2: ...y Bracing for High Air Movement and Outdoor Applications 17 Outdoor Unvented Operation 18 Gas Supply Installation Instructions 19 Installation of the Gas Line to the Heater 21 Leak Testing 24 Electrical Requirements and Wiring Diagrams 25 Field Wiring Supply Voltage 26 Thermostat Connection 27 4 0 Operation 28 Sequence of Operations 28 Diagnostics 29 5 0 Troubleshooting Guide 30 6 0 Maintenance 34...

Страница 3: ...uded in the heater kit contents e g screws terminals etc are the responsibility of the installer Notify your product representative or Detroit Radiant Products of any discrepancy or missing kit contents prior to installing unit Model Number Gas Type select one BTU H High Fire BTU H Low Fire Length Unit Weight lbs Recommended Mounting Height Radiant Surface Area sq ft 36 Baffle Sections HL2 DS 30 6...

Страница 4: ...om parts Serial No 0914XXXXXXXXXX 0001 Gas Valve Circuit Board Wire Harness N O Switch N O VL Orifice N C Switch N C VL Orifice Diff Switch Diff VL Orifice Igniter Burner 16 Tube Ind Lights Diag Light Term Block Transformer Fan Alt Fan Alt Fan Usage Relay Filter 24 Volt In 120 Volt In Gas In Extra VL Orifice Production Code Version Stock Add On Internal Use Only HEATER TYPE Electric Tag Special 1 ...

Страница 5: ... codes and regulations Post this tag adjacent to the heater s thermostat or controls before operating the heater INSTALLER READ AND POST THIS NOTICE LL001 XM 07 18 CDS This product can expose you to chemicals including lead and carbon monoxide which are known to the State of California to cause birth defects or other reproductive harm For more information go to www P65Warnings ca gov WARNING Avoid...

Страница 6: ...eath or injury Safety is the most important consideration during installation operation and maintenance of the heater You will see the following symbols and signal words when there is a hazard related to safety or property damage Warning indicates a potentially hazardous situation which if not avoided could result in death or injury Caution indicates a potentially hazardous situation which if not ...

Страница 7: ...tional Fuel Gas Code ANSI Z223 1 NFPA 54 Copies of the Standards can be viewed or purchased at www nfpa org Not For Use in Indoor Living Spaces Installing this unit in residential indoor living spaces or sleeping quarters such as bedrooms or basements may result in property damage serious injury or death This unit is approved for unvented commercial industrial outdoor use only WARNING WARNING Cali...

Страница 8: ...supply 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 between the tube surface or reflector and the combustible item Considerations must also be made for moving objects around the tube heater The following is a partial list of items to maintain clearance...

Страница 9: ...ve room temperature Building materials with a low heat tolerance such as plastics vinyl siding canvas tri ply etc may be subject to degradation at lower temperatures It is the installer s responsibility to assure that adjacent materials are protected from degradation Model Number Mounting Angle Sides Front Behind Top Below End HL2 DS 30 65 N P 0 25 25 6 60 12 30 36 10 9 47 12 HL2 DS 30 80 N P 0 25...

Страница 10: ...gning an infrared radiant heating system for a patio consider the following What expectations does the end user have for coverage and comfort level of the space Does the design meet the needs of the space Have recommended mounting heights been observed Have all clearances to combustible situations been observed Is the supply burner end of the heater located where more heat is required Is it best t...

Страница 11: ...mounting heights Chart 3 1 Recommended Mounting Heights and Coverages for HL2 DS Series Heaters Figure 3 2 Mounting Height Dimensions see Chart 3 1 for dimensions Max Input BTU h Typical or Recommended Mounting Height Coverage Area Straight Config LxW Distance Between Heaters ft Dim A Distance Between Heater Rows Dim B Max Distance Between Heaters and Wall Dim C 65 000 9 16 26 x 12 10 20 20 40 16 ...

Страница 12: ...the burner box and place the empty carton at the burner end of the first tube and reflector assembly 3 Disconnect the pressure switch hose Glo Bar connector and electrode wire from their respective connections on the burner tube Remove the conduit nut from the end of the conduit and set aside Holding the burner box on its side so as to keep the Glo Bar clear place the burner tube through the refle...

Страница 13: ...ther The exhaust end reflector will slightly overlap the burner end reflector The tube and reflector assemblies are in the correct position when the reflector screw holes are aligned see Fig 3 7 7 Remove the screw holding the exhaust downturn and set aside Insert the baffle into the exhaust tube locking each baffle together as they are inserted Once in the tube ensure the baffles are in the vertic...

Страница 14: ...ew in each 9 Using the four 4 screws provided and a nut driver attach the reflectors together so that the screws are hand tight Do not overtighten as this will not allow for the expansion and contraction of the reflectors Sheet Metal Screw Reflector Overlap with Reflector Screw Holes Aligned 3 0 Installation Heater Assembly Instructions ...

Страница 15: ... Hanging Chain Bracket 3 0 Installation Heater Assembly Instructions Insert the bolt in the nutsert and secure see Fig 3 8 With one person positioned at each end of the heater carefully flip the unit over and set back down onto the cartons Using the supplied bolts attach the hanging brackets to the top of the unit see Fig 3 8 10 11 ...

Страница 16: ...s referenced in the Safety section and these instructions 1 Mark locations for hanging points 2 Prepare mounting surface If necessary weld blocks and drill holes 3 Fasten beam clamp screw hook or other type of suspension anchor to hanging point 4 Attach and close stainless steel S hook and 1 0 stainless steel bulldog chain to anchor Check that it is securely attached NOTE Threaded rod may be used ...

Страница 17: ...to add additional support structures at the ceiling level for the connection of these side suspensions Apply longitudinal forward backward bracing field supplied at each reflector hanging bracket The desired suspension material shall have a minimum work load rating of 200 pounds 3 0 Installation Sway Bracing for High Air Movement and Outdoor Applications Egg Crate End Panel Bracket End Panel Brack...

Страница 18: ...be used to accomplish the air displacement Local codes may require that the mechanical exhaust system be interlocked with the electrical supply line to the heaters enabling both to function simultaneously When the space requires mechanical ventilation the exhaust openings for removing the flue products must be located above the level of the heater s Figure 3 12 Minimum End Clearances Unvented heat...

Страница 19: ...he absence of local codes with the latest edition of the National Fuel Gas Code NFPA 54 CAUTION NOTICE The total input to the appliance must fall within 5 of the rated input as indicated on the rating plate Otherwise the heat exchanger may prematurely fail 3 0 Installation Gas Supply Installation Instructions IMPORTANT Before connecting the gas supply to the burner control box Verify that the heat...

Страница 20: ...the heater must be allowed to freely expand and contract without causing undue stress on the gas pipe The heater shall not be connected to the building piping system with rigid pipe or semi rigid metallic tubing including copper When using such material an intermediate connection device that allows for the heater expansion must be used The gas outlet must be in the same room as the appliance is in...

Страница 21: ... the pipe threads require sealing compounds 4 Form the 1 2 x 24 stainless steel flexible gas connector into a smooth C shape allowing approximately 12 inches between the flexible connector s end nuts see Figure 3 13 The connector must reach from the gas supply to the appliance without stretching kinking or twisting 5 Attach the flexible connector to the 5 8 flare adapter on the gas line and the ot...

Страница 22: ... High 3 5 5 0 14 0 76 2 52 000 Low 1 7 49 5 HL2 DS 30 100 100 000 High 3 5 5 0 14 0 95 2 65 000 Low 1 8 61 9 Chart 3 3 Propane Gas Consumption Assumes an average heating value of 1050 BTU SCF and a Specific Gravity of 0 60 Assumes an average heating value of 2500 BTU SCF and a Specific Gravity of 1 53 Chart 3 4 allows for a 0 3 inch W C pressure drop in the supply pressure from the building main t...

Страница 23: ...feet 56 37 115 75 215 141 440 288 670 438 1270 830 60 feet 50 33 105 69 195 127 400 261 610 399 1150 752 70 feet 46 30 96 63 180 118 370 242 560 366 1050 686 80 feet 43 28 90 59 170 111 350 229 530 346 990 647 90 feet 40 26 84 55 160 105 320 209 490 320 930 608 100 feet 38 25 79 52 150 98 305 199 460 301 870 569 125 feet 34 22 72 47 130 85 275 180 410 268 780 510 150 feet 31 20 64 42 120 78 250 16...

Страница 24: ... PSI Before leak testing close the field installed manual shut off valve shown on Figure 3 14 on the supply line to isolate the gas valve from the pressure NOTE All factory installed gas connections have passed an approved leak test For leak testing on pressures above PSI When leak testing with pressures above PSI 14 W C the unit must be isolated from the supply pipe Close the field installed manu...

Страница 25: ...ost current revisions to the Electrical Code ANSI NFPA 70 The unit must be electrically grounded according to these codes Line polarity must be observed when making field connections Internal Wiring Diagram Before wiring this 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 mater...

Страница 26: ...let 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 clearance to combu...

Страница 27: ... OPTIONAL 24V COMMON CHECK THERMOSTAT INSTRUCTIONS TO SEE IF NEEDED 24V 120V G W B G W B G W B Field Wiring 1 When controlling multiple heaters with a single control device one ERK or ERK HE per heater is required 2 An external 24 VAC transformer 2 Amp per heater is required supplied by installer 3 Maintain electrical polarity when hooking up multiple heaters 4 Allow heaters to be switched by zone...

Страница 28: ...roceeding to soft lockout Low Fire Running Circuit After ignition the flame rod monitors burner flame If sense of flame is lost the control closes the gas valve within one second and a new trial sequence identical to the starting sequence is initiated If flame sense is not established within 8 5 seconds the heater will attempt two 2 additional ignition sequences before proceeding to soft lockout T...

Страница 29: ... types of lockout Soft Lockout The heater will attempt to light three times In the event of a failed attempt to light gas pressure valve no flame sense etc the heater will enter a Soft Lockout period for 30 minutes and then attempt to light three more times before entering Hard Lockout mode Hard Lockout If proof of flame is not established a component failure occurs or blockages are evident the he...

Страница 30: ... should be replaced or repaired Find source of electrical problem between the external transformer and thermostat Is there 24 V on the secondary side of the external transformer Is there 24 V to the thermostat Yes Yes No Yes No No Yes Yes No Yes Does the igniter warm up and glow red Is the igniter physically damaged Replace igniter Check voltage at igniter sequence usually 5 to 15 seconds after po...

Страница 31: ...must be replaced Repair wiring between power in and transformer The fan is faulty and must be replaced The internal transformer is faulty and must be replaced Is the power across the TH terminal and ground on the circuit board 24 V Yes No No Yes Yes No No Yes Check for loose wiring or restrictions in hose connec tions to pressure switch Are they OK Replace wiring or hose connections After 1 30 sec...

Страница 32: ...s rating plate Is gas pressure OK Does the burner stay on for approx 8 seconds and then shut off Does the burner come on and turn off immediately 1 or 2 seconds Check to make sure gas pressure is within minimum and maximum inputs as indicated on the heater s rating plate Is gas pressure OK Pressure switch may be faulty or there is a restriction in the exhaust Does the heater stay ON until a call f...

Страница 33: ...If it is 3 5 natural gas or 10 propane the indicator light is faulty and should be replaced If approximately 2 0 to 2 5 natural gas or 5 0 to 6 5 propane the heater is in low fire mode and the troubleshooting steps described here should be followed Check to make sure gas pressure is within minimum and maximum inputs as indicated on the heater s rating plate Is gas pressure OK Were the gas lines pu...

Страница 34: ... damage from fire Gas Connection Inspect the integrity of the 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 tightness of the safety shut off valves turn off the manual valve upstream of the appliance combination control Remove the hex head plug on the inle...

Страница 35: ...ity of the 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 Reflector To maintain effective infrared heating always keep both sides of the reflector clean Maintenance can vary significantly depending on the environment Dirt and dust can be vacuumed or wiped with a soap an...

Страница 36: ... TP 10D 3 x 3 4 Metal Conduit TP 204 Gas Orifice consult factory TP 14 Sight Glass Gasket TP 205 Glo Bar Holder TP 15 Sight Glass TP 206 Glo Bar Holder Spring Clip TP 16 Sight Glass Washer TP 207 Pressure Switch Mounting Bracket TP 17 Sight Glass Kit TP 208A Gas Valve Mounting Bracket TP 31B Control Box Mounting Bracket TP 212 1 2 x 3 Pipe Nipple TP 33B 1 2 Shut Off Ball Valve Inlet Tap TP 219 Dif...

Страница 37: ...ol Box Outer Shell Black TP 884 Service Access Panel TP 809 Support Bracket TP 885 Mounting Bracket TP 811A Egg Crate Assembly 4 Per Heater TP 886 Air Intake Hood with Birdscreen TP 826 40 VA Transformer TP 1018 Diff Switch Silicone Sensing Tube Exhaust TP 828 Amber Operational Indicator Light TP 1428 Green Operational Indicator Light TP 840A Two Stage Natural Gas Valve Assembly TP 3072 Burner Gre...

Страница 38: ...cts 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 purpose of identification and do not express or imply a warranty that the products are merchantable or fit for a particular purpose or that the products will necessarily conform to the illustrations or descriptio...

Страница 39: ...39 HL2 DS Series 7 0 Maintenance Notes Notes ...

Страница 40: ...signs must be posted to specify the maximum permissible stacking height to maintain the required clearances from the heater to the combustibles Signs must either be posted adjacent to the heater thermostats or in the absence of such thermostats in a conspicuous location Not for residential use Do not use this heater in the home sleeping quarters attached garages etc Installation of a commercial tu...

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