background image

Form #42710000 
May 2013 

-17-             

 

 

FIELD CONNECTION 

FIELD CONNECTION 

FIELD CONNECTION 

FIELD CONNECTION AND THERMOSTAT 

AND THERMOSTAT 

AND THERMOSTAT 

AND THERMOSTAT WIRING DIAGRAMS

WIRING DIAGRAMS

WIRING DIAGRAMS

WIRING DIAGRAMS    

A.

A.

A.

A.

 

LINE VOLTAGE (120V) THERMOSTAT CONNECTIONS 

LINE VOLTAGE (120V) THERMOSTAT CONNECTIONS 

LINE VOLTAGE (120V) THERMOSTAT CONNECTIONS 

LINE VOLTAGE (120V) THERMOSTAT CONNECTIONS –

–    SINGLE HEATER

SINGLE HEATER

SINGLE HEATER

SINGLE HEATER    PER THERMOSTAT

PER THERMOSTAT

PER THERMOSTAT

PER THERMOSTAT    

    
    

Ground
Neutral

Hot (120VAC)

Fused

Disconnect

Switch

Thermostat

Service

Switch

Heater 1

Continue To

Additional

Heaters

Thermostat

Service

Switch

Heater 2

 

    
    
    
    

B.

B.

B.

B.

 

LINE VOLTAGE (120V) THERMOSTAT CONNECTIONS 

LINE VOLTAGE (120V) THERMOSTAT CONNECTIONS 

LINE VOLTAGE (120V) THERMOSTAT CONNECTIONS 

LINE VOLTAGE (120V) THERMOSTAT CONNECTIONS –

–    MULTIPLE HEATERS

MULTIPLE HEATERS

MULTIPLE HEATERS

MULTIPLE HEATERS    PER TH

PER TH

PER TH

PER THERMOSTAT

ERMOSTAT

ERMOSTAT

ERMOSTAT    

    
    

Ground
Neutral

Hot (120VAC)

Fused

Disconnect

Switch

Thermostat

Service

Switch

Heater 1

Continue To

Additional

Heaters

Service

Switch

Heater 2

 

    

C.

C.

C.

C.

 

LOW

LOW

LOW

LOW    VOLTAGE (

VOLTAGE (

VOLTAGE (

VOLTAGE (24

24

24

24V) THERMOSTAT CONNECTIONS 

V) THERMOSTAT CONNECTIONS 

V) THERMOSTAT CONNECTIONS 

V) THERMOSTAT CONNECTIONS –

–    SINGLE HEATER PER THERMOSTAT

SINGLE HEATER PER THERMOSTAT

SINGLE HEATER PER THERMOSTAT

SINGLE HEATER PER THERMOSTAT    

    

WIRE LEGEND

ENGLISH

FRANCAIS

BK

BLACK

NOIR

W

WHITE

BLANC

R

RED

ROUGE

BL

BLUE

BLEU

G

GREEN

VERT

V

VIOLET

VIOLET

A

AMBER

AMBRE

42706990 Rev. D  1/2012

If any of the original wire as supplied

with the appliance must be replaced.

It must be replaced with wiring material

having a temperature rating of at least

105oC. (18 AWG. - UL / CSA 600V

Type TEW)

When connecting the supply circuit to

the heater, wiring material having a

minimum size of 14 AWG and a

temperature rating of at least 90oC

shall be used.

S'il faut remplacer un fil de l'appareil

d'origine, utiliser exclusivement des fils

 à température de service nominale

d'au moins 105C (18 AWG. - UL / CSA

600ÊV

Type TEW).

Pour raccorder le circuit d'alimentation

au radiateur, utiliser des fils de calibre

14 AWG ou plus à température de

service nominale d'au moins 90C.

BL

BL

BK

BK

R

W

BK

BK

W

BK

BK

BK

W

DRAFT

INDUCER

MOTOR

GAS VALVE

AIR SWITCH

TRANSFORMER

120V PRIMARY

24V SECONDARY

A

G

R

HIGH

VOLTAGE

CABLE

ELECTRODE

GAP 3/16”

CONTINUE TO

ADDITIONAL

HEATERS

NEUTRAL

120V

GROUND

L1

L2

TERMINAL

BLOCK

FACTORY WIRING

FIELD WIRING

CONTROL CABINET

MONITORING

 LIGHT

3

4

5

1

LOW VOLTAGE

THERMOSTAT (24V)

BK

BK

BK

W

R

FIELD INSTALLED

RELAY KIT

PART NO.43274000

R

FUSE 2A

Circuit d'origine

Connexions client

Lampes témoins

Neutre

Terre

Vers les autres

radiateurs

Plaque à

bornes

Transformateur

bobine primaire 120ÊV

bobine secondaire 24ÊV

pressostat

Robinet à gaz

Écartement

d'électrode

4,7Êmm

Haute tension

Armoire de commande

Moteur

d'amorce

d'aspiration

G

IGNITION MODULE

GND

(BURNER)

25V

Bloc d'allumage

VALVE

VALVE

    

    

    

    

Содержание LTU40-L5

Страница 1: ...trical switch DO NOT DO NOT DO NOT DO NOT use any telephone in your building IMMEDIATELY IMMEDIATELY IMMEDIATELY IMMEDIATELY call your gas supplier from a neighbor s telephone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department DO NOT DO NOT DO NOT DO NOT store or use gasoline or other store or use gasoline or other store or use gasoline or other s...

Страница 2: ... and Shutdown Instructions 25 17 0 Sequence of Operation 25 18 0 Control Component Location 26 19 0 Cleaning And Annual Maintenance 27 20 0 Troubleshooting Guide 28 21 0 Replacing Parts 31 21 1 Removal of Spark Electrode 31 21 2 Removing main burner and Gas Valve 32 21 3 Air Switch Pressure Check 32 21 4 Ignition System Checks 33 21 5 Motor And Blower Wheel Check 34 22 0 Installation Data 34 23 0 ...

Страница 3: ...uipment Do not hang anything from the heater Supply all installation materials necessary that are not included with the heater Check the nameplate to make sure that the burner is correct for the gas type in the building and the installation altitude 3 0 GENERAL INFORMATION This heater is a self contained infrared radiant tube heater for use in locations where flammable gases or vapors are not gene...

Страница 4: ...sidential dwel r use in residential dwel r use in residential dwellings lings lings lings This heater is for Indoor Installation and Covered Patio Installation only and can be used in either Vented or Unvented mode The term Unvented actually means Indirect Vented While the products of combustion are expelled into the building national codes require ventilation in the building to dilute these produ...

Страница 5: ... are posted on the c c c control box In areas used for storage of combustible materials where they may be stacked below the heater ontrol box In areas used for storage of combustible materials where they may be stacked below the heater ontrol box In areas used for storage of combustible materials where they may be stacked below the heater ontrol box In areas used for storage of combustible materia...

Страница 6: ...Current Current Rating Rating Rating Rating Natural or Propane MPT Male 3 4 Round 4 Round 120 Volt 60Hz 1 Phase 2 6 Amp Fuse Fuse Fuse Fuse Rating Rating Rating Rating Ignition System direct sp Ignition System direct sp Ignition System direct sp Ignition System direct spark ark ark ark Spark Module 2 Amp 250V for 24V Circuit 30 second pre purge period 6 0 PACKING LIST A A A A Control Draft Inducer...

Страница 7: ...19cm 3 3 4 10cm 3 1 2 9cm 6 15cm Bird Screen Side View Front View 7 0 DIMENSIONS LTU 40 75 30 SERIES 15 38cm 5 1 2 14cm 202 513cm 88 224cm 11 1 2 29cm 82 208cm 5 1 4 13cm 18 1 2 47cm 7 1 2 19cm Side View Bottom View Tube Support Hanger Bracket QTY 3 Emitter Tube Reflector 15 FT Body Section Plastic Vacuum Air Tube 1 4 O D Tube Strain Relief Bushing Motor Leads Sight Glass 1 2 MPT Gas Connection 8 ...

Страница 8: ...nger bracket U bolt clamp 5 16 Hex nuts 3 OD x 15 tube Mounting flange 12 radial holes Mounting flange 12 radial holes U bend Suspension chain with turnbuckle Reflector foot end 5 1 2 88 82 11 1 2 Reflector control end Reflector Typical overlap 3 control box to reflector control box to chain Suspension chain Control box reflector 3 5 1 2 Side View ...

Страница 9: ...vide sufficient lengths or swing joints to compensate for expansion See Figures b and c 5 Heaters subject to vibration must be provided with vibration isolating hangers 6 Heaters must not be supported by gas or electric supply lines and must be suspended from a permanent structure with adequate load capacity Space Ray recommends that the tube sections be suspended using chains with turnbuckles Thi...

Страница 10: ...e at the flange end the slide tube support hanger bracket between marks on tubes and tighten the U bolt hex nuts Follow instructions in Section 10 1 for the field assembly of the heater 88 reference Remove end reflectors from packaging Slide tube support hanger bracket between marks on tubes and tighten the U bolt hex nuts 1 2 Lift this end 6 reference 82 reference ...

Страница 11: ... the control box end 88 82 Suspension Chain 18 1 2 18 1 2 18 1 2 1 Trapeze Method Trapeze Method Trapeze Method Trapeze Method Individual Suspension Method Individual Suspension Method Individual Suspension Method Individual Suspension Method 2 Lift the tube section and suspend it into place When lifting caution should be used to avoid damaging the assembly Make sure that the long axis of heater i...

Страница 12: ...with 1 4 20 locknuts The control box must be mounted with the perforated fresh air plate on top facing the ceiling 6 Attach the draft inducer assembly to the left hand draft inducer tube flange and secure with 1 4 20 locknuts A flue restrictor plate is attached to the draft inducer weld studs DO NOT DISCARD RESTRICTOR PLATE DO NOT DISCARD RESTRICTOR PLATE DO NOT DISCARD RESTRICTOR PLATE DO NOT DIS...

Страница 13: ... clamp installation detail which allows the reflector to clamp installation detail which allows the reflector to clamp installation detail which allows the reflector to clamp installation detail which allows the reflector to slide under the clamp during hea slide under the clamp during hea slide under the clamp during hea slide under the clamp during heater operation ter operation ter operation te...

Страница 14: ...k that the gas fuel on the burner rating plate matches the fuel for the application 3 Check that the gas supply piping has the capacity for the total gas consumption of the heaters and any other equipment connected to the line 4 Check that the calculated supply pressure with all gas appliances and heaters operating will not drop below the minimum supply pressure required for these heaters Check in...

Страница 15: ...on a tubular type infrared heater per the standard for Connectors A gas connector certified for use on a tubular type infrared heater per the standard for Connectors for Gas Appliances ANSI Z21 24 CSA 6 10 is supplied for installation in US only The gas connector is 36 long for Gas Appliances ANSI Z21 24 CSA 6 10 is supplied for installation in US only The gas connector is 36 long for Gas Applianc...

Страница 16: ...d should not require adjustment The combination gas valve is factory set and should not require adjustment If full rate adjustment is required remove the cover screw Using a small screwdriver turn the adjustment screw clockwise to increase or counterclockwise to decrease the gas pressure to the burner Replace the cover screw NOTE NOTE NOTE NOTE The step opening pressure of this gas valve is not ad...

Страница 17: ...ently live electrical circuit one that is not controlled by a light switch 4 The power supply to the unit should be protected with a fused disconnect switch or circuit breaker A service switch as required by local codes shall be located in the vicinity of the heater check local codes for allowable distances and should be identified as Heater Service Switch All electrical wiring must be located in ...

Страница 18: ... pressostat Robinet à gaz Écartement d électrode 4 7Êmm Haute tension Armoire de commande Moteur d amorce d aspiration S il faut remplacer un fil de l appareil d origine utiliser exclusivement des fils à température de service nominale d au moins 105C 18 AWG UL CSA 600ÊV Type TEW Pour raccorder le circuit d alimentation au radiateur utiliser des fils de calibre 14 AWG ou plus à température de serv...

Страница 19: ... HEATER PER THERMOSTAT WIRE LEGEND ENGLISH FRANCAIS BK BLACK NOIR W WHITE BLANC R RED ROUGE BL BLUE BLEU G GREEN VERT V VIOLET VIOLET A AMBER AMBRE 42706990 Rev D 1 2012 If any of the original wire as supplied with the appliance must be replaced It must be replaced with wiring material having a temperature rating of at least 105oC 18 AWG UL CSA 600V Type TEW When connecting the supply circuit to t...

Страница 20: ...g the supply circuit to the heater wiring material having a minimum size of 14 AWG and a temperature rating of at least 90ºC shall be used 3 A replaceable 2 amp fuse 1 1 4 long is located inside the control box D D D D L L L LOW OW OW OW VOLTAGE VOLTAGE VOLTAGE VOLTAGE 24 24 24 24V THERMOSTAT CONNECTIONS V THERMOSTAT CONNECTIONS V THERMOSTAT CONNECTIONS V THERMOSTAT CONNECTIONS MULTIPLE HEATERS MU...

Страница 21: ...m the heater Subtract 15 ft for each elbow within 15 ft of the heater 4 Joints between sections of piping shall be fastened by sheet metal screws or other approved means and should be sealed to prevent leakage of flue gas into building Aluminum or Teflon tape suitable for 550ºF 3M Company tapes 433 or 363 or silicone sealant is recommended 5 Avoid locating elbows in the first 5 of vent pipe whenev...

Страница 22: ...izontal vent pipe shall rise not less than 1 4 inch per foot from the start of the vent system to the vent terminal The heater must be installed level All portions of the vent pipe shall be supported to prevent sagging 6 spacing is recommended 4 A minimum clearance of 6 inches must be maintained between the outside wall and vent cap 18 clearance will provide stability under high wind conditions 5 ...

Страница 23: ...al codes All common vent pipe should be insulated flue pipe or double wall Type B vent 3 Avoid unnecessary bends Limit to two 2 90º elbows 4 The entire length of vent connector shall be readily accessible for inspection cleaning and replacement 5 Groups of heaters with a common vent must be controlled by a common thermostat If any heater connected to a common vent system for multiple If any heater...

Страница 24: ...Venting Multiple Heater Venting Multiple Heater Venting Multiple Heater Venting Number of Heaters Number of Heaters Number of Heaters Number of Heaters 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 LTU 40 4 4 5 5 6 LTU 50 4 4 5 5 6 LTU 60 4 5 6 6 7 LTU 75 4 5 6 6 7 COMMON VENT DIAMETER COMMON VENT DIAMETER COMMON VENT DIAMETER COMMON VENT DIAMETER If a size is not available use the next larger size THE ...

Страница 25: ...he perforated fresh air plate must be maintained at all times In larger open areas of buildings infiltration normally is adequate to provide air for combustion 15 1 DIRECT OUTSIDE AIR FOR COMBUSTION Outside combustion air should be supplied directly to the heater when the building is subject to negative pressure or when contaminants or high humidity are present in the building air These contaminan...

Страница 26: ...ng Table ing Table and use the diameter indicated based on the number of heaters per duct Flue vent termination must be 1 ft 30cm higher than combustion air inlet cap Perforated Cover Remove The combustion air inlet should be not less than 3 ft 0 9m either vertically or horizontally from the flue vent termination Combustion Air Cap Leslie VersaCap Type B 4 Diameter Single Wall Pipe Flashing 1 2 12...

Страница 27: ...f the gas and electrical supply NOTE NOTE NOTE NOTE T T T The lighting and shutdown instructions are also shown on the permanent nameplate label attached to the he lighting and shutdown instructions are also shown on the permanent nameplate label attached to the he lighting and shutdown instructions are also shown on the permanent nameplate label attached to the he lighting and shutdown instructio...

Страница 28: ...ht Red 6 Monitoring Light Amber 7 Access Panel 8 Restrainter Nipple 5 Long 9 Terminal Block and Shield 10 Air Switch 11 Gas Valve 12 Orifice 13 Main Burner 14 Burner Clamp 15 Spark Electrode 16 Ignition Cable 17 Ignition Module 18 Transformer 120 24 VAC NOTE NOTE NOTE NOTE Access panel Access panel Access panel Access panel on on on only ly ly ly opens opens opens opens to to to to 90 90 90 90 ...

Страница 29: ... lines are not leaking Check the gas connection to the heater for any signs of damage fatigue or corrosion If there are any signs of damage to the gas connection or leaks found in the gas piping immediately stop using the heater until the gas pipe and connections have been repaired or replaced Check that the gas lines are not bearing the weight of the heater See also Section 11 0 Control Control C...

Страница 30: ...e Are they clear and unobstructed Check the pressure at the air switch Is it higher than the minimum required Is the red wire from transformer securely connected to air switch terminal C Move the red wire to air switch terminal C Replace the red monitoring light Is one wire of the red light connected to air switch terminal NO No Yes Replace transformer Are the black and white wires to the transfor...

Страница 31: ... it 24 vac No Yes Move the white wire to the transformer terminal Is the fuse OK on ignition module Yes No Replace the fuse Yes Is there a spark across igniter sensor gap Yes No Is the ground wiring between the ignition module and the control box OK No Yes Adjust the electrode tip into the flame Is the ceramic insulator OK on the spark electrode No Yes Replace the spark electrode Is the spark gap ...

Страница 32: ...eck the spark gap Is it 3 16 No Yes Adjust the spark gap to 3 16 Has all the air been purged from the gas supply lines No Yes Purge the gas supply line Check the inlet pressure to the gas valve Is it between minimum and maximum for the gas type No Yes Adjust supply gas pressure Restart troubleshooting Check the manifold gas pressure during startup Is it zero inches Yes No Replace gas valve After a...

Страница 33: ...son Refer to the Replacement Parts Guide in Section 23 0 for all replacement parts 21 1 REMOVAL OF SPARK ELECTRODE A 1 3 2 4 6 5 Access panel only opens to 90 3 16 1 Disconnect electrical supply and open access panel 2 Pull out the ignition cable hooked to spark electrode 3 Remove two mounting screws 4 Take out the spark electrode Check that the spark gap is 3 16 5 Check spark electrode Spark elec...

Страница 34: ...Tube 0 16 WC Connector Tee Digital or Inclined Water Manometer scale 0 2 w c Temporary 1 4 ID Silicone plastic tubing for pressure test Control Box Air sensing tube bracket 1 Open hinged access panel 2 Add tubing to connect the air switch with the connector tee and the existing tubing 3 Connect plastic tubing of a digital or inclined water manometer with a 0 2 scale onto the connector tees 4 Turn ...

Страница 35: ...al to gas valve d Replace spark module if fuse and power are OK IGNITION MODULE DIAGNOSTICS IGNITION MODULE DIAGNOSTICS IGNITION MODULE DIAGNOSTICS IGNITION MODULE DIAGNOSTICS Fenwal 35 Fenwal 35 Fenwal 35 Fenwal 35 6087J1 6087J1 6087J1 6087J1 034 module only 034 module only 034 module only 034 module only The LED LED LED LED located on the ignition module will flash ON ON ON ON for second then OF...

Страница 36: ...eel turns freely and is not rubbing housing Blower wheel may have worked loose from shaft and jammed against housing d Check for blower wheel damage replace if necessary If no damage readjust blower wheel on shaft retighten set screw e If all above does not correct replace motor 22 0 INSTALLATION DATA Date of Installation of Heaters in System Serial No Model L L L LTU TU TU TU N Natural Gas L Prop...

Страница 37: ...tor Spacer 4 per motor 4 4 42740000 Motor Plate 1 5 03723000 Blower Wheel 1 6 43221000 Draft Inducer Gasket 1 7 42744000 Sensing Tube Draft Inducer 1 8 42742000 Sensing Tube Bracket 1 9 42739000 Blower Housing Sub Assembly 1 10 40504020 4 O D Flue Pipe Starting Collar 1 11 42741040 Restrictor Plate 1 I D 40 000 Btu hr 1 12 42741030 Restrictor Plate 1 1 8 I D 50 000 Btu hr 1 13 42741020 Restrictor ...

Страница 38: ...r Nipple 5 long 1 33 30333070 Valve VR8205P 2408 3 W C Natural Gas 1 34 30333080 Valve VR8205P 2416 10 W C Propane Gas 1 35 42701000 Orifice Fitting Test Gauge Connection 1 37 03259xxx xxx xxx xxx Orifice for LTU 40 75 State Mo State Mo State Mo State Model Gas Type for Size del Gas Type for Size del Gas Type for Size del Gas Type for Size 1 38 42700000 Main Burner 1 39 30148000 Universal Bushing ...

Страница 39: ... Gaz MAXIMUM MINIMUM MANIFOLD PRESSURE Pression a l echappement INPUT Btu Hr Consommation Btu Hr ORIFICE SIZE Dimensions bec Veilleuse MODEL NO No de Modelè Installation in 1 Aircraft hangars must be in accordance with the standard for Aircraft Hangars ANSI NFPA 409 latest edition 2 Public garages must be in accordance with the standard for parking structures ANSI NFPA 88a latest edition or with t...

Страница 40: ...r control end 7 42761010 Reflector foot end 8 44028141 15 Tube Replacement Kit 3 OD ALC w one 12 radial hole flange for LTU40 for LTU40 for LTU40 for LTU40 75 75 75 75 9 42764000 U Bend 3 OD x 3 3 4 centerline radius 10 02254010 Set Screw 5 16 24 x 1 2 2 per heater 9 10 7 5 5 6 8 8 3a 2 4 3 1 1 1 Note 1 Screws Nuts and Washers are standard hardware items and can be purchased at any local hardware ...

Страница 41: ...stible materials 43344990 July 2012 Installation Code and Annual Inspections Installation and Service of Space Ray equipment must be performed by a qualified contractor and conform with all requirements set forth in the Space Ray Installation and Operating Instructions and any National and Local codes pertaining to the installation service and operation of the equipment Annual inspection is recomm...

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