Space-Ray LTS Series Owner's manual

INFRARED GAS HEATERS
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■ gffrFv^
INSTALLATION AND OPERATION INSTRUCTIONS
OWNER / INSTALLER : For your safety this manual must be carefully and thoroughly read
and understood before installing, operating or servicing this heater.
INFRARED RADIANT TUBE HEATER
Models:
LTS SERIES LTU SERIES
LTS 40
LTU 80
LTS 50
LTU
90
LTS 60
LTU 100
LTS 75 LTU 110
LTS 80
LTU
120
LTS 90
LTU 125
LTS 100
LTU 130
LTS
110
LTU 140
LTS
120
LTU 150
LTS 125
LTU
160
LTS 130
LTU
175
LTS 140
LTS 150
LTS 160
LTS
175
IINSTALLER : This manual is the property of the owner. Please present this manual to
the owner when you leave the job site.
AWARNING : Improper installation, adjustment, alteration, service, or maintenance can
cause property damage, injury or death. Read the installation, operation and maintenance
instructions thoroughly before installing or servicing this equipment.
IIMPORTANT: SAVE THIS MANUAL FOR FUTURE REFERENCE.
SPACE-RAY*
A Division ofGas-FIrod Products, Inc.
Post Office Box 36485 ( 28236 ) • 305 Doggett Street (28203J • Charlotte, North Carolina
Phone [phone] • Fax [phone] • vvww.spaceray.com • email: [email protected]
Form #43155010

TABLE OF CONTENTS
secT/ow p E s cmpriQ N base
1) General Information. 1
2) LTU 80-175 Series - Specifications. 2
3) LTU 80-175 Series - Packing List. 2
4) LTU 80-175 Series - Dimensions. 3
5) LTU 80-175 Series - Heater Assembly. 4
6) LTU 80-175 Series - Joining of Body Sections. 4
7) LTS 40-175 Series —Specifications. 5
8) LTS 40-175 Series - Packing List. 5
9) LTS 40-175 Series - Dimensions. 6
10) LTS 40-175 Series - Typical Layouts. 7
11) LTS 40-175 Series - Assembly/Joining of Body Sections. 7
12) Adding Optional 90* Elbow (LTS Only). 8
13) Adding Optional Corner Reflector (LTS Only). 8
14) Attaching Control Box Assembly. 8
15) Attaching Draft Inducer Assembly. 9
16) Multiple Hanging & Draft Inducer Positions.10
17) Typical Suspension Methods.10
SECTION DESCRIPTION PAGE
18) Inclined Mounting Instructions (LTS Only).11
19) Minimum Clearances To Combustibles.11
20) Gas Connections And Regulations.12
21) Instructions For Pressure Test Gauge Connection.12
22) Electrical Connections.13
23) Venting.13
24) Air For Combustion.16
25) Direct Outside Air For Combustion.16
26) Lighting And Shutdown Instructions.16
27) Ignition System Checks.16
28) Sequence Of Operation.17
29) Troubleshooting Direct Spark Ignition System.18
30) Motor And Blower Wheel Check.19
31) Cleaning And Annual Maintenance.19
32) Replacing Parts.19
33) Installation Data.19
34) Replacement Parts Guide.19
! WHAT TO DO IF YOU SMELL GAS :
! Do not try to light any appliance. Extinguish any open flame. Open windows.
! Do not touch any electrical switch; do not use any telephone In your building.
! 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.
This heater compiies with ANSI Z83.6 (current standard) and CAN 1-2.16. Copies of the National Fuel Gas Code (ANSI Z223.1-latest edition)
are avaiiable from the CSA at 8501 East Pieasant Vaiiey Road. Cleveiand, Ohio 44131 or 55 Scarsdale Road, Don Milis, Ontario M3B 2R3. Ali
NFPA codes are avaiiable from the National Fire Protection Association, Batterymarch Park, Quincy, Massachusetts 02269.
1) GENERAL INFORMATION _
This heater is a seif-contained infrared radiant tube heater for use in iocations where fiammabie gases or vapors are not
generaliy present (as defined by OSHA acceptable limits) and is intended for the heating of nonresidential spaces.
INSTALLATION REQUIREMENTS
Installation of this heater must be in accordance with all applicable codes shown in the instructions and/or the local codes
and authorities having jurisdiction. In Canada, the installation must conform to current CAN/CGA-B149.1/2 Installation Code
in the absence of local codes. Heaters shall be installed by a licensed contractor or licensed installer. Clearances to
combustibles as outlined in this manual should always be observed. In areas used for storage of combustible materials where
they may be stacked below the heater, NFPA54 requires that the installer must post signs that will “specify the maximum
permissible stacking height to maintain the required clearances from the heater to combustibles.”
Every heater shall be located with respect to building construction and other equipment so as to permit access to the heater.
Each installer shall use quality installation practices when locating the heater and must give consideration to clearances to
combustible materials, vehicles parked below, lights, overhead doors, storage areas with stacked materials, sprinkler heads,
gas and electrical lines, and any other possible obstructions or hazards. Consideration also must be given to service accessibility.
The heater, when installed in aircraft hangars and public garages, must be installed in accordance with ANSI/NFPA 409-latest
edition (Standard for Aircraft Hangars), ANSI/NFPA 88a-latest edition (Standard for Parking Structures), and ANSI/NFPA 88b-
latest edition (Standard for Repair Garages) with the following clearances:
a. At least 10 feet above the upper surfaces of wings or engine enclosures of the highest aircraft that may be housed in the
hangar and at least 8 feet above the floor in shops, offices, and other sections of hangars communicating with aircraft
storage or service areas.
b. At least 8 feet above the floor in public garages. AWARNING : Minimum clearances marked on the heater must be
maintained from vehicles parked below the heater.
- (FOR CANADA ONLY) -
a. Installation of this appliance is to be in accordance with latest edition of CAN 1-B149.1 (Installation Code for Natural Gas
Burning Appliances and Equipment), and/or CAN B149.2 (Installation Code for Propane Gas Burning Appliances and
Equipment).
b. For installation in public garages or aircraft hangars, the minimum clearances from the bottom of the infrared heater to
the upper surface of the highest aircraft or vehicle shall be 50 percent greater than the certified minimum clearance, but
the clearance shall not be less than 8 feet. _
Although these heaters may be used in many applications other than space heating (e.g., process heating), Gas-Fired
Products, Inc. will not recognize the warranty for any use other than space heating.
Form #43155010
Feb-04
- 1 -

This heater is for indoor instaiiation and Covered Patio Instaliation 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 products of combustion. This ventilation may be provided by gravity or
mechanical means.
This heater Is not an explosion proof heater. Where the possibility of exposure to volatile and low flash point materials exists,
it could result in property damage or death. This heater must not be installed in a spray booth where the heater can operate
during the spraying process. Consult your local fire marshal or insurance company.
LTS Series Only : Since straight tube heaters are always hotter at the control end than at the draft inducer end, always
observe the minimum recommended mounting heights shown on the specification sheets and In Section 7 of this manual.
Use U-tube configuration instead of straight tubes for spot or area heating (e.g., where a single heater is utilized for space
heating).
AWARNIMG : Certain materials or objects, when stored under the heater, will be subjected to radiant heat and could be
seriously damaged. Observe the Minimum Clearances to Combustibles listed In the manual and on the heater at all times.
! ATTENTION : SAVE THIS MANUAL FOR FUTURE REFERENCE.
2) LTU 80-175 SERIES - SPECIFICATIONS
Model No.
Btu/hr
Input
Heat
Exchanger
Length
Total
Heater
Length
Flue Restrictor
Plate I.D. & Part #
Orifice Size
Minimum
Mounting Height
Natural Gas Propane Gas
@
Horizontal
@
45° Angle
LTU80
80,000
30’ 1T-6V2"
1-1/2”
#42741050 #19
(0.166)
#38
(0.102)
12’
12’
LTU90 90,000
1-1/2”
#42741050 #16
(0.177)
#36
(0.106)
12’
12'
LTUlOO 100,000
1-5/8” #42741060 #14
(0.182)
#33
(0.113)
12’
12’
LTUllO 110,000
1-3/4” #42741070 #10
(0.194)
#31
(0.120)
14’
13’
LTU120 120,000
1-3/4”
#42741070
13/64
(0.203) 1/8
(0.125)
14’ 13'
LTU125
125,000
1-7/8” #42741080
#5
(0.206)
#30
(0.129)
14’
13’
LTU 130 130,000
1-7/8” #42741080
#4
(0.209)
3.3mm
(0.130)
14’
13’
: z _
LTU125* 125,000
40’
22’-GW
1-7/8”
#42741080
#5
(0.206)
#30 (0.129)
14’
13’
LTU130* 130,000
1-7/8” #42741080
#4
(0.209)
3.3mm
(0.130)
14’
13’
LTU140* 140,000
2-1/32” #42741090 5.5mm
(0.216)
#29
(0.136)
15’
14’
LTU150* 150,000
2-1/32” #42741090 5.7 mm
(0.224)
#28
(0.140)
15’
14’
LTU 160* 160,000
2-1/4” #42741100 5.8mm
(0.228)
#27 (0.144)
15’
14’
LTU175* 175,000
2-1/4”
#42741100
“C”
(0.242)
3.8mm
(0.150)
16’
15’
^ These models require the use of an additional 5’ body section.
Type
Gas-Pipe Tube
Flue Fresh Air Electrical
Current
Gas;
Connection:
Diameter:
Connection: Connection: Supply:
Rating:
Natural
or Propane
NPT
(Female)
4” 6” Round 6’ Round
120 Volt,
60Hz, 1 Phase 2.6 Amp
Fuse Rating:
Ignition System:
In-line: 2 Amp 250V
(for 24V Circuit)
Spark Module: 3 Amp 250V
(for 24V Circuit)
Direct Spark
(with 30-second prepurge period)
3) LTU 80-175 SERIES - PACKING LIST
A) Control/Draft Inducer Package OTY
Control Box Assembly 1 |
Draft Inducer & Junction Box Assembly 1 I ^
Flue Restrictor Plate (attached to blower housing with 3 locknuts) . 1
Plastic Vacuum Air Tube (#03988120).1
4” X 6” Starting Collar (#42892000).1
Control Fastener Kit (#42907010).1
containing ; #8-32 Screws (#02166010) & Nuts (#02127030).2 ea.
Va - 20 Locknuts (#02167010).6
Tube Flange Gasket (#42921000).2
Installation & Operation Instructions (#43155010).1
- 2 -
CONTROl/DRAFT INDUCER
PACKAGE NUMBERS:
MODEL NO.
PART NO,
—
NATURAL GAS-
LTU80-N5 .
__#42883010
LTU90-N5.-
_.#42883030
LTU100-N5 #42883050
LTU110-N5
.#42883070
LTU120-N5
#42883090
LTU125-N5
#42883110
LTU130-N5
#42883130
LTU140-N5 .....#42883190
LTU150-N5-
_ . ..#42883210
LTU160-N5 ____#42883230
LTU175-N5
____#42883250
PROPANE GAS-
LTU80-L5^ .#42883020
LTU90-L5 #42883040
LTU100-L5
.#42883060
LTU110-L5 _#42883080
LTU120-L5_ ...#42883100
LTU125-L5 .. ... . #42883120
LTU130-L5 .....#42883140
LTU140-L5 __ _#42883200
LTU150.L5^
_ ._. ,#42883220
LTU160-L5 _#42883240
LTU175-L5. ..^^#42883260
Form #43155010
Fel>04

B) LTU 80-175 Body Package Descriptions (Package Number Is Indicated on the outside of each corresponding carton.)
■ LTU 80-130 (30’ TUBE^
Each 30’ LTU tube heater contains one 15’ Body Package as listed below.
(1)
#42881000.15 Ft. Bodv Package fOTV-ii containing:
a) #42914000, Pre-assembled 15’ ALC steel U-tube (two 24-hole flanges) with Reflector (QTY-i)
b) #42895000, Control End Reflector (QTY-l)
c) #42896000, Foot End Reflector (QTY-l)
d) #02266010, Speed Clips (QTY-20)
■ LTU 125-175 (40’ TUBE)
Each 40’ LTU tube heater contains one 15’ Body Package and one 5’ Body Package as listed below.
(1)
#42881000,15 Ft. Body Package (QTY- 1 ) (same as listed above)
(2)
#42882000. 5 Ft. Bodv Package (OTY-ii containing:
a) #42915000, Pre-assembled 5’ ALC steel tube (two 24-hole flanges) with Reflector (QTY-l)
b) #42907020. Bodv Fastener Kit rOTY-lt containing: #02167010. V4-20 Locknuts (OTY-12i
#02259000, V4-20 Machine Screws (QTY-12)
#02266010, Speed Clips (QTY-2)
c) #42921000, Tube Flange Gasket (QTY-2)
Junction Box
Exhaust Hood
-Required for UNVENTED use-
4”x6” Starting Collar
Form #43155010
FeiM}4
- 3 -

5) LTU 80-175 SERIES - HEATER ASSEMBLY
1. Place the flanges of the control end reflector (packaged with the 15’ body section) flush with the end of the body reflector.
Secure by sliding the speed clips onto the reflector edges. Evenly space the speed clips on the sides and top of the
reflector to provide a snug fit. Place the foot end reflector (not shown) on the opposite end of the body reflector and
secure as described above. DO NOT relocate the tube supporVhanger brackets, especially at the control end of the heater.
Slide the reflector toward the U-bend and leave a 3” space between the control end reflector and the control box.
2. Attach the control box and gasket to the right hand tube flange and secure with the ’4-20 locknuts. The control box must
be mounted with the perforated fresh air plate on top, facing the ceiling.
3. Attach the draft inducer assembly and gasket to the left hand tube flange and secure with the V4-20 locknuts. A flue
restrictor plate Is attached to the draft Inducer weld stud. Make sure this remains In place while the draft Inducer Is
being attached to the heater body. NOTE : The draft inducer can be mounted in either a verticai, a 45° or a horizontai
position. Refer to the diagram on multiple hanging and draft inducer positions (Section 16).
4. Take the end of the SJO cable from the junction box and insert it through the 3/8” connector of the control box. Connect
the wire leads of the SJO cable to “1” and “2” of the terminal block. Refer to the Connection Wiring Diagram (Section 22).
Tighten the screws of the connector.
5. Place the starting collar on the draft inducer and secure with the #8-32 screws and nuts.
6. If the heater is for UNVENTED use, place the exhaust hood (supplied as an accessory) on top of the starting collar. Secure
with the #8 sheet metal screws. The exhaust hood must be mounted only In an upright position and directed towards
the reflector body.
7. If heater is to be vented to the outside of the building, place the flue pipe directly onto the starting collar and terminate
with an approved vent cap.
1/2” MPT Gas Pipe Connection
6) LTU 125-175 SERIES - JOINING OF BODY SECTIONS
Models LTU125-175 - ► These models require the use of an additional
5’ body section, as shown on the heater dimension sheet. Follow the
instruction below for joining these sections.
1. Join the tube flanges of the body sections together with the gaskets in
between. Secure the flanges with the ’4-20 screws and locknuts
provided in the 5’ body package.
2. Pull the reflector onto the 15’ body section over the reflector on the 5’
body section to maintain approximately an one-inch overlap. Secure
the reflectors by sliding the speed clips on the reflector edges as show
in the diagram. One speed clip is required for each side of the reflector.
- 4 -
Form #43155010
Fel>04