Gas-Fired Products PTS 40, PTS 75, PTS 150, PTS N7-L7, PTS 200 User Manual

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

Two Stage Push Through System (Positive Pressure)

Models

:

PTS SERIES: (40, 50, 75, 100, 125, 150, 175, 200) – N7/L7

PTU SERIES: (40, 50, 75, 100, 125, 150, 175, 200) – N7/L7

!INSTALLER: This manual is the property of the owner. Please present this manual to
the owner when you leave the job site.

WARNING: 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.

IF YOU SMELL GAS:



^ DO NOT try to light any appliance.
^ 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.

!IMPORTANT

Post Office Box 36485 (28236)  305 Doggett Street (28203)  Charlotte, North Carolina

Phone [phone]  Fax [phone]  www.spaceray.com  email: [e-mail]

Form #43343530
July 08

FOR YOUR SAFETY

: SAVE THIS MANUAL FOR FUTURE REFERENCE.

SPACE-RAY

DO NOT store or use gasoline or other

flammable vapors and liquids in the
vicinity of this or any other appliance.

TABLE OF CONTENTS

SECTION

DESCRIPTION PAGE

1.0) Safety........................................................................................................................................ 2

2.0) Installer Responsibility........................................................................................................... 2

3.0) General Information ............................................................................................................... 2

4.0) Minimum Clearances to Combustibles ............................................................................... 4

5.0) Specifications .......................................................................................................................... 5

6.0) Packing List ............................................................................................................................. 5

6.1) Accessory Packages ............................................................................................................... 9

7.0) Typical Layouts – PTS/U Series ........................................................................................... 11

7.1) Typical Assembly Layout........................................................................................................ 12

8.0) Dimensions – PTS Series....................................................................................................... 13

8.1) Dimensions – PTU Series ..................................................................................................... 14

8.2) Heater Assembly / Joining of Tube Sections...................................................................... 15

9.0) Typical Suspension Methods................................................................................................. 17

10.0) Assembly of Tube Sections.................................................................................................... 18

10.1) Assembly of Extension Section............................................................................................. 19

10.2) Inserting Turbulators .............................................................................................................. 20

10.3) Adding Body Reflectors.......................................................................................................... 21

11.0) Adding Optional 90º Elbow (PTS Only) ............................................................................... 22

11.1) Adding Optional Corner Reflector (PTS Only) .................................................................... 22

11.2) Adding 180º U-Bend (PTU Only)........................................................................................... 23

11.3) Adding Optional U-Bend Reflector (PTU Only) ................................................................... 23

12.0) Attaching Control Box Assembly .......................................................................................... 24

12.1) Connecting The TISS System ............................................................................................... 25

13.0) Gas Connections And Regulations ....................................................................................... 28

14.0) Instructions For Pressure Test Gauge Connection............................................................. 30

15.0) Electrical Connections............................................................................................................ 31

16.0) Venting...................................................................................................................................... 34

17.0) Air For Combustion ................................................................................................................. 38

17.1) Direct Outside Air For Combustion....................................................................................... 38

18.0) Lighting and Shutdown Instructions .................................................................................... 40

19.0) Sequence of Operation .......................................................................................................... 40

20.0) Burner Component Location ................................................................................................. 41

21.0) Cleaning And Annual Maintenance...................................................................................... 42

22.0) Troubleshooting Guide ........................................................................................................... 43

23.0) Replacing Parts ....................................................................................................................... 46

23.1) Removal of Main Burner And Electrodes ............................................................................ 46

23.2) Removing Gas Valve And Manifold Assembly ................................................................... 47

23.3) Air Switch Pressure Check .................................................................................................... 47

23.4) Ignition System Checks.......................................................................................................... 48

24.0) Installation Data...................................................................................................................... 49

25.0) Replacement Parts Guide...................................................................................................... 49

This heater complies with ANSI Z83.20 (current standard) and CSA 2.34. Copies of the National Fuel Gas Code (ANSI
Z223.1-latest edition) are available from the CSA at 8501 East Pleasant Valley Road, Cleveland, Ohio 44131 or 55 Scarsdale
Road, Don Mills, Ontario M3B 2R3. All NFPA codes are available from the National Fire Protection Association, Batterymarch
Park, Quincy, Massachusetts 02269.

Form #43343530
July 08 –1–

1.0) SAFETY

This heater is a self-contained two stage infrared radiant tube heater. Safety information required during installation
and operation of this heater is provided in this manual and the labels on the product. The installation, service and
maintenance of this heater must be performed by a contractor qualified in the installation and service of gas fired
heating equipment.

All personnel in contact with the heater must read and understand all safety information, instructions and labels
before operation. The following symbols will be used in this manual to indicate important safety information.

Warning instructions must be followed to prevent or avoid hazards which
may cause serious injury, property damage or death.

Caution instructions must be followed to prevent incorrect operation or
installation of the heater which may cause minor injury or property damage.

2.0) INSTALLER RESPONSIBILITY

The installer is responsible for the following:

• The heater and venting, as well as electrical and gas supplies must be installed in accordance with these
installation instructions and any applicable codes and regulations.

• Every heater shall be located with respect to building construction and other equipment so as to permit access to
the heater.

• Each installer must follow the clearances to combustible materials for the heaters.

• Install the heater so that the supports and hangers are correctly spaced in accordance with these instructions. The

heater must be supported by materials having a working load limit of at least 115lbs.

• Ensure that the tube integrity safety system TISS™ supplied is installed in accordance with these instructions and
that the tension is correct.

• Supply the owner with a copy of these Installation and Operation Instructions.

• Where unvented heaters are used, gravity or mechanical means shall be provided to supply and exhaust at least 4

CFM per 1,000 Btu/hr input of installed heaters.

• Never use the heater as a support for a ladder or other access equipment. 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 two stage infrared radiant tube heater for use in locations where flammable gases or
vapors are not generally present (as defined by OSHA acceptable limits) and is intended for the heating of
nonresidential spaces.

INSTALLATION REQUIREMENTS

The installation must conform to local building codes or in the absence of local codes, with the National Fuel Gas
Code ANSI Z223.1/NFPA54 or the Natural Gas and Propane Installation Code CSAB149.1. 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.”

Form #43343530
–2– JJuly 08

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. WARNING

: Minimum clearances marked on the heater must

be maintained from vehicles parked below the heater.

a. Installation of this appliance is to be in accordance with latest edition of CAN 1-B149.1 (Installation Code for



(FOR CANADA ONLY)

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), Space­Ray will not recognize the warranty for any use other than space heating.

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 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.

PTS Series Only

: Since straight tube heaters are always hotter at the control end than at the flue terminal end,

always observe the minimum recommended mounting heights shown on the specification sheets and in Section

5.0 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).

HOT

WARM

WARM

HOT

WARM

WARM

High Altitude

:

Appliances are supplied as standard for altitudes of O to 2,000 feet (0-610 m). High-altitude ratings are obtained
by a change in the orifice size. When ordered for high altitude installations, burners are supplied by the factory
ready for high altitude installation. Check the nameplate for altitude before proceeding with the installation. In
Canada the adjustment for altitude is made in accordance with Standard CGA 2.17, Gas-Fired Appliances for Use
at High Altitudes.

Form #43343530
July 08 –3–

4.0) MINIMUM CLEARANCES TO COMBUSTIBLES

Combustible material must be located outside the
clearance dimensions listed.

Failure to do so may result in death, serious injury or
property damage.

Minimum clearances to combustibles shall be measured from the outer surfaces as shown in the following diagram:

End

End

* Ceiling

Ceiling

Side

Below

Horizontal

Side

Front

Below

45° Angle (Maximum)

Rear

MINIMUM CLEARANCES TO COMBUSTIBLES

Angle Mounted at

Model No.

PTS/PTU 40/25

PTS/PTU 50/30

PTS/PTU 75/50

PTS/PTU 100/65

PTS/PTU 125/80

PTS/PTU 150/100

PTS/PTU 175/110

PTS/PTU 200/125

Mounted Horizontally

Sides Ceiling* Below Ends 45º Front 45º Rear

27” 6” 40” 30” 48” 12”
27” 6” 40” 30” 48” 12”
27” 6” 60” 30” 48” 12”
66” 6” 88” ** 40” 66” 20”
66” 6” 101” ** 40” 66” 20”
84” 6” 106” ** 48” 84” 24”
84” 6” 106” ** 48” 84” 24”
84” 6” 106” ** 48” 84” 24”

45º

* When used indirect vented, minimum clearance for CEILING must be: 12” for PTS/PTU 50-75 and 18” for
PTS/PTU 100-200. If optional corner and u-bend reflectors are not used, the clearance must be 18”.

** Maximum clearance below reduces to 72” once you are 20ft. downstream from the control box.

WARNING

: 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.

NOTE

: The clearances specified above must be maintained to combustibles and other materials that may be
damaged by temperatures 90ºF above ambient temperature. Clearances to combustibles are posted on the
control box. 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.” Space-Ray recommends posting these signs
adjacent to the heater thermostat or other suitable location that will provide enhanced visibility.

Form #43343530
–4– JJuly 08

5.0) SPECIFICATIONS

High

Btu/hr

Model No.

PTS/PTU 40/25 40,000 25,000 #44140061 #32
PTS/PTU 50/30 50,000 30,000 #44140064 3.5mm
PTS/PTU 75/50 75,000 50,000 #44140063 #21

PTS/PTU 100/65 100,000 65,000 #44140062 #12
PTS/PTU 125/80 125,000 80,000 #44140066 #4

PTS/PTU 150/100 150,000 100,000 #44140067 “A”
PTS/PTU 175/110 175,000 110,000 #44140067 “E”
PTS/PTU 200/125 200,000 125,000 #44140068 6.9mm

Input

Low

Btu/hr

Input

Combustion

Air Plate

Part #

Natural Gas Propane Gas

Orifice Size

(0.116)

(0.138)

(0.159)

(0..189))

(0..209)

(0.234)

(0.250)

(0.272)

#49

46

2.5mm

#32
#30

#27
#23

4.1mm

(0.073)

(0.081)

(0.098)

(0.116)

(0.129)

(0.144)

(0.154)

(0.161)

Minimum *

Mounting Height

@

Horizonta

l

45º Angle

10 ft. 9 ft. 4
11 ft. 10 ft. 5
13 ft. 12 ft. 5

14 ft. 13 ft. 3
14 ft. 13 ft. 7

15 ft. 14 ft. 4
16 ft. 15 ft. 0
18 ft. 16 ft. 1

@

Turbulator

* MOUNT HEATERS AS HIGH AS POSSIBLE. Minimums are shown as a guideline for human comfort and uniform
energy distribution for complete building heating applications. Consult your Space-Ray representative for the
particulars of your installation requirements.

Type

Gas:

Natural

or Propane

Gas-Pipe

Connection:

Diameter:

Tube

Flue

Connection: 1

Fresh Air

Connection: 1

½” MPT

(Male) 4” 4” Round 4” Round

Electrical

Supply:

Current
Rating:

120 Volt,

60Hz, 1 Phase 1.74 Amp

1) See Section 16 for vent sizes when multiple heaters are connected into a common vent.

Module Electrical Rating:

Input Power-Control: 18-30 VAC 50/60 Hz (class 2
transformer)
Input Power-Line: 120 VAC (L1, IND contacts only)
Gas Valve Rating: 2.0 A @ 24 VAC (max.)
Combustion Blower Rating: 3.0 FLA @ 120 VAC

Ignition System (direct spark):

15 second trial for ignition period
15 second pre-purge period
60 second inter-purge period
30 second post-purge period

3 tries for ignition (separate flame sensor).
1/4 H.P. Motor
Flame Sensitivity: 0.7 microamps minimum

Qty.

6.0) PACKING LIST

A) PTS/PTU Burner Package QTY

Burner Box Assembly (Refer to the following chart for Package Part Numbers) 1

4”ID x 4”Lg Flue Adapter Collar (#30504500) ...................................................................1

Fastener Kit – Burner Box Attachment/Flue Adapter Collar (#42907040)....................1

containing

¼ - 20 Locknuts (#02167010)..............................................................3

Tube Flange Gasket (#42921000).......................................................................................1

Turbulator 24” Long (#44152240) *See chart above for required quantities. *

Installation & Operation Instructions (#43343530)..........................................................1

Turnbuckle (#30545040) ......................................................................................................1

Gas connector 5/8” OD x 36” (#30302360) .......................................................................1

Form #43343530
July 08 –5–

: #10 x 1/2” Self-Drilling Screws (#02189020)..............................2

BURNER PACKAGE NUMBERS:

NATURAL GAS PROPANE GAS

MODEL NO PART NO.
PTS/U 40-N7 #44149510
PTS/U 50-N7 #44149530
PTS/U 75-N7 #44149550
PTS/U 100-N7 #44149570
PTS/U 125-N7 #44149590
PTS/U 150-N7 #44149610
PTS/U 175-N7 #44149630
PTS/U 200-N7 #44149650

MODEL NO

PART NO.

PTS/U 40-L7 #44149520
PTS/U 50-L7 #44149540
PTS/U 75-L7 #44149560
PTS/U 100-L7 #44149580
PTS/U 125-L7 #44149600
PTS/U 150-L7 #44149620
PTS/U 175-L7 #44149640
PTS/U 200-L7 #44149660

B) PTS 40-200 Body Package Descriptions

(Package Part Number is indicated on the outside of each corresponding carton.)

System Lengths

PTS Body Packages – Aluminized/Hot Rolled or

Alumi-Therm/Hot Rolled

10 Ft.

44134020

20 Ft. pkg

44135000

30 Ft. pkg

44136000

40 Ft. pkg

44137100

50 Ft. pkg

44138100

Part # Each Body Package Includes: Qty. Qty. Qty. Qty. Qty.

42912080 10 Ft. Tube with 24 Hole Flange (Aluminized) 1 1 1 - ­42912169 10 Ft. Tube with 6 Hole Flange (Alumi-Therm) - - - 1 1
41932101 10 Ft. Tube less Flanges (Hot Rolled) - 1 2 3 4
43319100 Reflector, 9’ 11½” 1 2 3 4 5
30462980 Tube Coupling - 1 2 3 4
43318000 Tube Hanger/Support Bracket, 13” 1 2 3 4 5
43980010 Wire Hanger 1 2 3 4 5

Body Fastener Kit (included in body packages) 42907280 42907190 42907200 42907210 42907220
42873000 U-Bolt 1 2 3 4 5
02127110 Hex Nut, 5/16-18 3 5 6 8 10
02189020 HWHSM Screw, #10-16 x ½” TEKS 4 8 10 14 18

60Ft. System 70Ft. System

PTS Body Packages – Alumi-Therm/Hot Rolled

40 Ft. Pkg

44137100

20 Ft. Pkg

44135010

40 Ft. Pkg.

44137100

30 Ft. Pkg

44136040

Part # Each Body Package Includes: Qty. Qty. Qty. Qty.

42912169 10 Ft. Tube with 6 Hole Flange (Alumi-Therm)

1 - 1 ­41932101 10 Ft. Tube less Flanges (Hot Rolled) 3 2 3 3
43319100 Reflector, 9’ 11½” 4 2 4 3
30462980 Tube Coupling 3 2 3 3
43318000 Tube Hanger/Support Bracket, 13” 4 2 4 3
43980010 Wire Hanger 4 2

4 3

Body Fastener Kit (included in body packages) 42907210 42907190 42907210 42907200
42873000 U-Bolt 4 2 4 3
02127110 Hex Nut, 5/16-18 8 5 8 6
02189020 HWHSM Screw, #10-16 x ½” TEKS 14 8

14 10

Form #43343530
–6– JJuly 08

C) PTS 40-200 Series Body Package Descriptions – ALC Option (Aluminized Calorized)

(Package Part Number is indicated on the outside of carton.)

System Lengths

PTS Body Packages – Aluminized/Aluminized or

Alumi-Therm/Aluminized

10 Ft. Pkg

44134020

20 Ft. Pkg

44135020

30 Ft. Pkg

44136020

40 Ft. Pkg

44137090

50 Ft. Pkg

44138080

Part # Each Body Package Includes: Qty. Qty. Qty. Qty. Qty.

42912080 10 Ft. Tube with 24 Hole Flange (Aluminized) 1 1 1 - ­42912169 10 Ft. Tube with 6 Hole Flange (Alumi-Therm) - - - 1 1
41932100 10 Ft. Tube less Flanges (Aluminized) - 1 2 3 4
43319100 Reflector, 9’ 11½” 1 2 3 4 5
30462980 Tube Coupling - 1 2 3 4
43318000 Tube Hanger/Support Bracket, 13” 1 2 3 4 5
43980010 Wire Hanger 1 2 3 4 5

Body Fastener Kit (included in body packages) 42907280 42907190 42907200 42907210 42907220
42873000 U-Bolt 1 2 3 4 5
02127110 Hex Nut, 5/16-18 3 5 6 8 10
02189020 HWHSM Screw, #10-16 x ½” TEKS 4 8 10 14 18

60Ft. System 70Ft. System

PTS Body Packages – Alumi-Therm/Aluminized

40 Ft. Pkg

44137090

20 Ft. Pkg

44135030

40 Ft. Pkg

44137090

30 Ft. Pkg

44136050

Part # Each Body Package Includes: Qty. Qty.

42912169 10 Ft. Tube with 6 Hole Flange (Alumi-Therm)

1 - 1 -

Qty. Qty.

41932100 10 Ft. Tube less Flanges (Aluminized) 3 2 3 3
43319100 Reflector, 9’ 11½” 4 2 4 3
30462980 Tube Coupling 3 1 3 3
43318000 Tube Hanger/Support Bracket, 13” 4 2 4 3
43980010 Wire Hanger 4 2

4 3

Body Fastener Kit (included in body packages) 42907210 42907190 42907210 42907200
42873000 U-Bolt 4 2 4 3
02127110 Hex Nut, 5/16-18 8 5 8 6
02189020 HWHSM Screw, #10-16 x ½” TEKS 14 8

14 10

D) PTU 40-200 Body Package Descriptions

(Package Part Number is indicated on the outside of each corresponding carton.)

System Lengths

PTU Body Packages – Aluminized/Hot Rolled or

Alumi-Therm/Hot Rolled

20 Ft. Pkg.

44135000

30 Ft. Pkg

44136010

40 Ft. Pkg

44137100

50 Ft. Pkg

44138110

Part # Each Body Package Includes: Qty. Qty. Qty. Qty.

42912080 10 Ft. Tube with 24 Hole Flange (Aluminized) 1 1 - ­42912169 10 Ft. Tube with 6 Hole Flange (Alumi-Therm) - - 1 1
41932101 10 Ft. Tube less Flanges (Hot Rolled) 1 1 3 3
41932051 5 Ft. Tube less Flanges (Hot Rolled) - 2 - 2
43319100 Reflector, 9’ 11½” 2 2 4 4
43319050 Reflector, 4’ 11 ½” - 2 - 2
30462980 Tube Coupling 1 3 3 5
43318000 Tube Hanger/Support Bracket, 13” 2 4 4 6
43980010 Wire Hanger 2 4 4 6

Form #43343530
July 08 –7–

Body Fastener Kit (included in body packages) 42907190 42907210 42907210 42907221

42873000 U-Bolt 2 4 4 6
02127110 Hex Nut, 5/16-18 5 8 8 13
02189020 HWHSM Screw, #10-16 x ½” TEKS 8 14 14 24

U-Bend Package 43208020 43208020 43208020 43208020
42873000 U-Bend 1 1 1 1
43318500 31” Tube Support/Hanger Bracket 1 1 1 1
30462980 Tube Coupling 1 1 1 1
02189020 HWHSM Screw, #10-16 x ½” TEKS 2 2 2 2

60Ft. System 70Ft. System

PTU Body Packages – Alumi-Therm/Hot Rolled

40 Ft. Pkg.

44137100

20 Ft. Pkg.
44135010

40 Ft. Pkg.

44137120

30 Ft. Pkg.

44136040

Part # Each Body Package Includes: Qty. Qty. Qty. Qty.

42912169 10 Ft. Tube with 6 Hole Flange (Alumi-Therm)

1 - 1 ­41932101 10 Ft. Tube less Flanges (Hot Rolled) 3 2 2 3
41932051 5 Ft. Tube less Flanges (Hot Rolled) - - 2 ­43319100 Reflector, 9’ 11½” 4 2 3 3
43319050 Reflector, 4’ 11 ½’ - - 2 ­30462980 Tube Coupling 3 2 4 3
43318000 Tube Hanger/Support Bracket, 13” 4 2 5 3
43980010 Wire Hanger 4 2

5 3

Body Fastener Kit (included in body packages) 42907210 42907219 42907220 42907200
42873000 U-Bolt 4 2 5 3
02127110 Hex Nut, 5/16-18 8 5 10 6
02189020 HWHSM Screw, #10-16 x ½” TEKS 14 8

18 10

U-Bend Package 43208020 43208020
42873000 U-Bend 1 1
43318500 31” Tube Support/Hanger Bracket 1 1
30462980 Tube Coupling 1 1
02189020 HWHSM Screw, #10-16 x ½” TEKS 2

2

E) PTU 40-200 Series Body Package Descriptions – ALC Option (Aluminized Calorized)

(Package Part Number is indicated on the outside of each corresponding carton.)

System Lengths

PTU Body Packages –Aluminized/Aluminized or

Alumi-Therm/Aluminized

20 Ft. Pkg.

44135020

30 Ft. Pkg.

44136030

40 Ft. Pkg.

44137090

50 Ft. Pkg.

44138090

Part # Each Body Package Includes: Qty. Qty. Qty. Qty.

42912080 10 Ft. Tube with 24 Hole Flange (Aluminized) 1 1 - ­42912169 10 Ft. Tube with 6 Hole Flange (Alumi-Therm) - - 1 1
41932100 10 Ft. Tube less Flanges (Aluminized) 1 1 3 3
41932050 5 Ft. Tube less Flanges (Aluminized) - 2 - 2
43319100 Reflector, 9’ 11½” 2 2 4 4
43319050 Reflector, 4’ 11 ½” - 2 - 2
30462980 Tube Coupling 1 3 3 5
43318000 Tube Hanger/Support Bracket, 13” 2 4 4 6
43980010 Wire Hanger 2 4 4 6

Form #43343530
–8– JJuly 08

13

(33cm)

13

(33cm)

6

(15cm)

12

(30cm)

END REFLECTOR

Body Fastener Kit (included in body packages) 42907190 42907210 42907210 42907221
42873000 U-Bolt 2 4 4 6
02127110 Hex Nut, 5/16-18 5 8 8 13
02189020 HWHSM Screw, #10-16 x ½” TEKS 8 14 14 24

U-Bend Package 43208020 43208020 43208020 43208020
42873000 U-Bend 1 1 1 1
43318500 31” Tube Support/Hanger Bracket 1 1 1 1
30462980 Tube Coupling 1 1 1 1
02189020 HWHSM Screw, #10-16 x ½” TEKS 2 2 2 2



60Ft. System 70Ft. System

PTU Body Packages – Alumi-Therm/Aluminized

40 Ft. Pkg.

44137090

20 Ft. Pkg.

44135030

40 Ft. Pkg.

44137110

30 Ft. Pkg.

44136050

Part # Each Body Package Includes: Qty. Qty. Qty. Qty.

42912169 10 Ft. Tube with 6 Hole Flange (Alumi-Therm) 1 - 1 ­41932100 10 Ft. Tube less Flanges (Aluminized) 3 2 2 3
41932050 5 Ft. Tube less Flanges (Aluminized) - - 2 ­43319100 Reflector, 9’ 11½” 4 2 3 3
43319050 Reflector, 4’ 11 ½’ - - 2 ­30462980 Tube Coupling 3 2 4 3
43318000 Tube Hanger/Support Bracket, 13” 4 2 5 3
43980010 Wire Hanger 4 2

5 3

Body Fastener Kit (included in body packages) 42907210 42907219 42907220 42907200
42873000 U-Bolt 4 2 5 3
02127110 Hex Nut, 5/16-18 8 5 10 6
02189020 HWHSM Screw, #10-16 x ½” TEKS 14 8

18 10

U-Bend Package 43208020 43208020
42873000 U-Bend 1 1
43318500 31” Tube Support/Hanger Bracket 1 1
30462980 Tube Coupling 1 1
02189020 HWHSM Screw, #10-16 x ½” TEKS 2

2

6.1) ACCESSORIES

A) End Reflector Accessory Package, Part #43341010

(1 pkg. per PTS Series or 2 pkgs. per PTU Series)

Contains
End Reflector, #43320000……QTY–2
Speed Clips, #02266010……QTY–4

B) Elbow Accessory Package, Part #43208010

Form #43343530
July 08 –9–

(Option for PTS Series Only)

Contains

Elbow, #431750010……QTY–1
#10-16 x ½ Self-Drilling Screws, #02189020……QTY–2
Tube Coupling, #30462980……QTY–1

:

:

18

(46cm)

30 3/4 (78cm)

Length = 24 (61cm)

C) Corner Reflector Accessory Package, Part #43342000

(Option for PTS Series Only)

Contains

:

Corner Reflector Assembly, #43345000……QTY–1

Speed Clips, #02266010……QTY–4

24

(61cm)

D) U-Bend Package, Part #43208020

(Option for PTU Series Only)

Contains:

U-Bend, #42913020……QTY–1
#10-16 x ½ Self-Drilling Screws, #02189020……QTY–2
Tube Coupling, #30462980……QTY–1
31” Hanger/Tube Support, #43318500……QTY–1

E) U-Bend Reflector Package, Part #43488000

(Option for PTU Series Only)

Contains:
U-Bend Reflector, #43490000……QTY–1
U-Bend End Reflector, #43490050……QTY–1
Speed Clips, #02266010……QTY–11

#10-16 x ½ Self-Drilling Screws, #02189020……QTY–4

F) 31” Hanger/Tube Support, Part #43318500

(Option for Angle Mounting of PTU Series)

31

(79cm)

18

(46cm)

Tube Centers

G) Exhaust Hood Package, Part #42924000

Contains

Exhaust Hood Assembly, #42925540……QTY–1
#10-16 x ½ Self-Drilling Screws, #02189020……QTY–2

:

4 (10cm)

7 1/2
(19cm)

3 3/4 (10cm)

3 1/2 (9cm)

Side View

24

(61cm)

7 1/2
(19cm)

Bird
Screen

Front View

Form #43343530
–10– JJuly 08

7.0) TYPICAL LAYOUTS – PTU / PTS Series

10FT.
SYSTEM

50 FT.
SYSTEM

20 FT.
SYSTEM

30 FT.
SYSTEM

60 FT.
SYSTEM

40 FT.
SYSTEM

LEGEND

Burner Box

Flue Termination

10 FT. Body Section

5 FT. Body Section

90 Deg. Elbow

180 Deg. U-Bend

70 FT.
SYSTEM

EMITTER LENGTH BODY LENGTH

MODEL

PTS 40/25

PTS 50/30

PTS 75/50

PTS 100/65

PTS 125/80

PTS 150/100

PTS 175/110

PTS 200/125

Min. Max.

10 Ft. 20 Ft.

20 Ft 30 Ft.

20 Ft. 30 Ft.

30 Ft. 40 Ft.

30 Ft 50 Ft.

40 Ft. 60 Ft.

50 Ft. 70 Ft.

50 Ft. 70 Ft.

MODEL

PTU 40/25

PTU 50/30

PTU 75/50

PTU 100/65

PTU 125/80

PTU 150/100

PTU 175/110

PTU 200/125

Min. Max.

10 Ft. 10 Ft.

10 Ft. 15 Ft.

10 Ft. 15 Ft

15 Ft. 20 Ft.

15 Ft. 25 Ft.

20 Ft. 30 Ft.

25 Ft. 35 Ft.

25 Ft. 35 Ft.

NOTES:

1) In all configurations, the control unit must be connected directly to either a) the 24-hole flange of the 10 ft.
aluminized steel starting body section (for 10 ft., 20 ft., and 30 ft. systems) or b) the 6-hole flange of the 10 ft.
alumi-therm steel starting body section (for 40 ft., 50 ft., 60 ft., and 70 ft. systems.

2) Joining of two 90º elbows directly together to form a “Z” shape IS NOT permitted.

3) PTS / U 175/110 - 40 ft length available for special applications.

4) 5 Ft. Body Packages may be utilized on any of these heaters to yield heater lengths from 15 ft. to 70 ft.

5) Any configuration of components not shown in the illustrations may be used except as noted in 1 and 2

Form #43343530
July 08 –11–

above.

7.1) TYPICAL ASSEMBLY LAYOUT

POISONOUS GAS AND SOOT HAZARD

The heater must be assembled with the correct number of turbulator sections
and tube length for the rated heat input.

The turbulator must be installed in the last tube section as shown.

Failure to do so may result in death, serious injury, property damage or illness
from Carbon Monoxide poisoning.

10 FT. SYSTEM

20 FT. SYSTEM

30 FT. SYSTEM

40 FT. SYSTEM

50 FT. SYSTEM

60 FT. SYSTEM

70 FT. SYSTEM

Burner Box 10ft Aluminized Tube 24

Form #43343530
–12– JJuly 08

Stainless Steel Turbulator
closest to burner PTS / U
40 only.

Hole Flange

or
10ft Alumi-Therm Tube
6 Hole Flange

LEGEND

Coupling 10ft Aluminized or HRS

Tube model dependent

MODEL

PTS/U 40/25
PTS/U 50/30
PTS/U 75/50
PTS/U 100/65
PTS/U 125/80
PTS/U 150/100
PTS/U 175/110
PTS/U 200/125

2ft Stainless
Steel
Turbulator
sections

2 Ft. Turbulator

Sections

2ft Aluminized
Steel
Turbulator
sections

4
5
5
3
7
4
0
1

8.0) DIMENSIONS – PTS Series

Typical Dimensions Up to 60 Ft. Shown.

120VAC

Power Supply Cord

10

(25cm)

Fresh Air

Inlet

1/2 MPT Gas

(37cm)

14-1/2

Connection

9-1/4

(24cm)

Burner

Box

End View

Flue Terminal

12

(30cm)

108

(274cm)

12

12

(30cm)

(30cm)

108

108

(274cm)

(274cm)

12

12

(30cm)

(30cm)

108

108

108

(274cm)

(274cm)

(274cm)

Wire Hanger

13 Tube Support/

Hanger Bracket

Wire Hanger

13 Tube Support/

Hanger Bracket

Wire Hanger

13 Tube Support/

Hanger Bracket

Wire Hanger

10 FT Tube

Assembly

120

(typical)

14

(305cm)

108

(274cm)

(36cm)

Models:

PTS 40

Flue

Terminal

Burner

Box

12

(30cm)

240

(610cm)

14

108

(274cm)

108

(274cm)

(36cm)

Models:

PTS 40, 50,

75

12

12

(30cm)

360

(30cm)

108

(274cm)

108

(274cm)

(914cm)

108

(274cm)

Models:

12

12

PTS 50, 75,

100, 125

(30cm)

480

(30cm)

108

(274cm)

(1219cm)

108

(274cm)

108

(274cm)

Models:

PTS 100, 125

150

108

4 Tube Coupling

(typical)

12

(30cm)

600

(1524cm)

108

12

(30cm)

108

(274cm)

(274cm)

(274cm)

Models:

PTS 125, 150,

175, 200

4 Tube Coupling

(typical)

12

(30cm)

720

12

(30cm)

Bottom View

108

(274cm)

(1829cm)

108

(274cm)

108

(274cm)

Models:

PTS 150, 175,

200

13 Tube Support/

Wire Hanger

13 Tube Support/

Wire Hanger

Bottom View

13 Tube Support/

Hanger Bracket

Hanger Bracket

Hanger Bracket

Form #43343530
July 08 –13–

8.1) DIMENSIONS – PTU Series

Typical Dimensions Up to 50 Ft. Shown.

(36cm)

Models:
PTU 40, 50,
75

Models:
PTU 50, 75,
100, 125

Models:
PTU 100, 125,
150, 175

Models:
PTU 125, 150,
175, 200

14

Burner
Box

Flue
Terminal

(274cm)

(305cm)

108

180

(457cm)

(274cm)

108

(274cm)

120

108

(274cm)

108

240

(610cm)

12

(30cm)

12

(30cm)

12

(30cm)

15

(38cm)

10 FT Tube
Assembly
(typical)

48

(122cm)

300

(762cm)

5 FT Tube
Assembly

108

(274cm)

(274cm)

108

U-Bend

12

(30cm)

(122cm)

4 Tube Coupling
(typical)

48

6

(16cm)

31 Tube Support/
Hanger Bracket

Bottom View

31 Tube Support/
Hanger Brackets
(typical at control end)

Shipped with
U-Bend Package

Flue Terminal

Wire Hangers
(typical)

1/2 MPT Gas
Connection

18 (46cm)

31 (79cm)

PTU (end view)

13 Tube Support/
Hanger Brackets
(typical)

Fresh Air
Inlet

U-Bend

10

(25cm)

Wire Hangers
(typical)

120VAC
Power Supply Cord

Burner
Box

13 Tube Support/
Hanger Brackets
(typical)

14-1/2
(37cm)

Form #43343530
–14– JJuly 08

8.2) HEATER ASSEMBLY / JOINING OF TUBE SECTIONS

a

Flue

Termin

Turbulator

(See specifications

section 5 for required

quantities.)

Typical

Overlap

Not Less

Than 10

#10 Self-Drill Screws

(Typical all tube supports,

tube couplings and flue

terminal.)

Wire Hanger

Tube Support Bracket

Tube Coupling

)

.

8 - 10

(Typical each tube joint

8 - 10

5 hanging points to be used for suspension for a typical 40ft

long system. There must be two hanging points on the first

tube and one on each of the other tubes

U-Bolt Clamp &

5/16" Hex Nuts

Tube

7

8 - 9 ¼

4"OD x 10Ft.

for required tubes.

See section

Flange

24 Hole for Aluminized Steel Tubes

6 Hole for Alumi-Therm Steel Tubes

Mounting

Gasket

(PTS 40FT Shown)

Burner

Box

Maximum 6 distance

from burner box to the

Typical Assembly Overview

tube support/hanger

Burner Box

bracket.

Suspension

Chain

Form #43343530
July 08 –15–

Typical Assembly Overview

(PTU 40FT Shown)

Turbulator
(See specifications
section 5 for required
quantities.)

#10 Self-Drill
Screws
(2 each)

Flue
Terminal

Burner Box

Gasket

Typical
Overlap

31 Tube Support Brk.
with U-Bolt Clamp
& 5/16" Hex Nuts

Mounting Flange
24 Hole for Aluminized Steel Tubes
6 Hole for Alumi-Therm Steel Tubes

Reflector

Wire Hanger

4"OD x 10Ft. Tube
See section 7
for required tubes.

13 Tube Support Brk.
with U-Bolt Clamp
& 5/16" Hex Nuts

U-Bend

Tube Coupling
(Typical each tube joint.)

#10 Self-Drill Screws
(Typical all tube supports,
tube couplings and flue
terminal.)

8 - 10

8 - 9 ¼

Maximum 6 distance
from burner box to the
tube support/hanger
bracket.

Burner Box
Suspension
Chain

6 hanging points to be used for suspension for a typical
40ft long system. There must be two hanging points
on the first tube and one on each of the other tubes

Form #43343530
–16– JJuly 08

9.0) TYPICAL SUSPENSION METHODS

SUSPENSION HAZARD

Burner must be secured to the mounting flange with nuts.

All materials used to suspend the heater must have a minimum working load
of 115 lbs.
All S Hooks must be crimped closed.

Never use the heater to support a ladder or other access equipment.
Failure to do so may result in death, serious injury or property damage.

Various means of suspending the heater can be used. See the following drawings for typical examples.

1. Use only noncombustible materials for hangers and brackets.

2. A minimum No. 2 chain with a working load limit of 115 lbs. is required.

3. Turnbuckles can be used with chains to allow leveling of the heater. All “S” hooks and eye bolts must be
manually crimped closed by the installer.

4. When using rigid means for heater suspension (rod, flat bar, etc.) provide 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 body sections be suspended using chains with turnbuckles. This will allow slight
adjustments after assembly and heater expansion/ contraction during operation.

If a “trapeze” method is used (shown below), the minimum chain length for the two connecting chains is 36”. If these
chains must be less than 36”, then do not use the trapeze method and, instead, use individual chains on each tube
support/hanger bracket.

Minimum
No. 2 Chain

Eyebolt

Turnbuckle

Eyebolt

Failure to install the burner box suspension
chain will void the manufacturers warranty.

Turnbuckle

Minimum
No. 2 Chain

S-Hook crimped
closed (typical)

Wire Hanger

3/16 x 1
wideFlat Bar

Threaded
Rod

Turnbuckle

Eyebolt

Eye bolt

36 (91cm) Minimum

Burner Box Suspension

Form #43343530
July 08 –17–

a.

b.

Tube Support/
Hanger Bracket

c.

Wire
Hanger

d.

10.0) ASSEMBLY OF TUBE SECTIONS

CUT HAZARD

Sheet metal parts, particularly reflectors and vent have sharp
edges. Always use gloves when handling.

Failure to do so may result in death, serious injury or property
damage.

During field assembly of the heater body sections, the recommended procedure is as follows:

1. Before hanging heater sections, first determine the actual layout of the system (see Sections 7.0 & 8.0 for
details). Consideration must also be taken for flue pipe, fresh air ducting, gas piping, clearances to combustibles,
etc. before hanging heater. Typical suspension methods are shown in Section 9.0.

2. Hang each tube section individually. DO NOT

attach the heater tube sections together on the ground and attempt

to hang the entire system.

3. In all configurations, the burner box must be connected directly to either a) the 24-hole flange of the 10 ft.

aluminized steel starting body section (for 10 ft., 20 ft., and 30 ft. systems) or b) the 6-hole flange of the 10 ft.
alumi-therm steel starting body section (for 40 ft., 50 ft., 60 ft., and 70 ft. systems.

4. Assemble a tube support/hanger bracket 4” from the end of the heat exchanger tube having the mounting
flange. Align the tube such that the welded seam is facing down toward the ground.

FAILURE TO ASSEMBLE THE TUBE WITH THE SEAM FACING DOWN
WILL VOID THE MANUFACTURER’S WARRANTY.

8 to 9 1/4

1

S Hooks

U-Bolt Clamp
& 5/16 Hex Nuts

Wire Hanger

2

4"OD x 10Ft. Heat
Treated Aluminized
Steel Tube

Tube Support/

Control Box
Mounting Flange

Maximum 6 distance from
control box mounting flange
to tube support bracket.

Hanger Bracket

5. Suspend the chain to attach the wire hanger and the tube support bracket. Insert the tube into the wire hanger
and then raise the tube support bracket end up to the suspension chain, use “S” hooks to attach the wire hanger
and tube support bracket to the chain.

Form #43343530
–18– JJuly 08

END VIEW

Weld seam to the
bottom of tube.

10.1 ASSEMBLY OF EXTENSION SECTION

MIN 8 MAX 10 BETWEEN HANGERS

Coupling

1

2

Wire Hanger

U-Bolt Clamp
& 5/16 Hex Nuts

3

Tube Support/
Hanger Bracket

See typical assembly overview (Section 8.0) for typical complete assembly. Assemble additional extension
sections as required for all systems. (See Sections 7.0, and 8.0 for typical layout details.)
Join the tube sections together and secure with tube couplings as described below:

Tube Support/
Hanger Bracket

6 approx.

WARNING: THE FOLLOWING COUPLING TIGHTENING INSTRUCTIONS MUST

1. Place the compression coupling over the end of the tube.

2. Use the small hole at the centerline of the coupling to check that the coupling is inserted correctly.

3. Partially tighten the bolt nearest the end of the tube (approximately half closed).

BE FOLLOWED PROPERLY TO AVOID FUTURE PROBLEMS.

1

Tube

Center end of
Tube with hole

2

Tube
Coupling

Partially tighten this bolt

Form #43343530
July 08 –19–

3

4

Center both
tubes with hole

Tube
Coupling

4. Slide the next tube into the coupling.

5. Make sure both tube ends are butted together.

6. Finish tightening both bolts to 40-60 ft.lbs. torque to ensure a complete seal.

7. Use the two Self-drilling screws through the pre-punched holes to secure the tubes in the coupling.

Band

#10 Self-Drilling
Screws
(QTY 2)

5

7

6

Force
Bars

Reaction
Block

8. Check to ensure that the hardware is completely closed and the band is seated on the reaction block and

interference pins as illustrated above.

9. Once all the heater body sections are attached, make sure that the heater system is level

adjustments can be made using the turnbuckles. (See Section 9.0)

Bolt

Interference
Pins

CORRECT
INSTALLATION

IMPORTANT: NEVER REUSE A COUPLING. Always install a new
coupling only and torque as per instructions above and the diagrams
above.

INCORRECT
INSTALLATION

. If it is not, slight

10.2) INSERTING TURBULATORS

POISONOUS GAS AND SOOT HAZARD

The heater must be assembled with the correct number of turbulator sections
and tube length for the rated heat input.

The turbulator must be installed in the last tube section as shown.

Failure to do so may result in death, serious injury, property damage or illness
from Carbon Monoxide poisoning.

1. Assemble the turbulators together by interlocking the slotted end portions. Slide these into the last tube

section until they are flush with the tube end. Note: Refer to the table below for quantities of turbulators
required for each heater model.

Form #43343530
–20– JJuly 08

Turbulators

MODEL 2 Ft. Turbulator Sections

PTS/U 40/25
PTS/U 50/30
PTS/U 75/50
PTS/U 100/65
PTS/U 125/80
PTS/U 150/100
PTS/U 175/110
PTS/U 200/125

4
5
5
3
7
4
0
1

ASSEMBLY HAZARD

The PTS / U 40 has one stainless steel
turbulator. This must be installed
closest to the burner.

Failure to do so may result in
deterioration of the turbulator material
and invalidate the warranty.

10.3) ADDING REFLECTORS

1. Slide the reflectors on the tube support/hanger brackets and through the wire hangers.

2. The tube at the coupling joints must be covered. Slide the reflectors together and provide an overlap of two (2”)
inches for the first reflector overlap after the control unit. All remaining reflector overlaps will be approximately
one (1”) inch. This will allow for the natural expansion and contraction of the heater when in operation. Note: The

heaters can expand and contract up to 1-3/4” of an inch.

3. Secure the reflectors as shown in Detail “A” using #10 x 1/2” self-drilling sheet metal screws at each tube
support/hanger bracket.

40 FT SYSTEM SHOWN

The reflector overlap must be
able to slide at this joint for
expansion of the heater

3 Gap
(between burner box
and reflector)

2 OVERLAP

Burner Box
Suspension
Chain

BURNER
BOX

CORRECT INSTALLATION INCORRECT INSTALLATION

DETAIL A

REFLECTOR
OVERLAP
(offset from tube
hanger support brackets)

REFLECTOR

DETAIL B

DETAIL B

REFLECTOR
OVERLAP
(positioned over tube
hanger support brackets)

1 OVERLAP

1 OVERLAP

DETAIL A

#10 x 1/2 SHEET
METAL SCREW
(Typical all tube
hanger/
support brackets.)

FLUE
TERMINAL

Form #43343530
July 08 –21–

11.0) ADDING OPTIONAL 90º ELBOW (PTS ONLY)

1. The optional 90º elbow must be located a minimum of 10 ft. after the control box.

2. Hang th e body secti ons in a 90º ( "L") sh aped pattern. Allow spacing for the elbow. The distance from one end of
the elbow to the centerline of the opposite leg is 13" as shown.

3. Join the tube ends of the body sections and the elbow together and secure with tube couplings as described in
Section 10.1.

Self-Drilling Screws
(QTY-2 per coupling)

13 (330mm)

Tube
Coupling

90 Deg. Elbow

13 (330mm)

11.1) ADDING OPTIONAL CORNER REFLECTOR (PTS ONLY)

1. Place the corner reflector over the reflectors of both body sections.

2. Secure by sliding speed clips on the reflector edges. One speed clip is required for each side of reflector.

3. The corner reflector can be used only when the long axis of the heater is level and mounted in a horizontal
position.

Speed Clip
(QTY-4)

Corner
Reflector

Form #43343530
–22– JJuly 08

11.2) ADDING 180°U-Bend (PTU ONLY)

1. Hang body sections parallel with each other. The centerline distance from tube at each body section should be
18” as shown.

2. Join tube ends of body sections and the U-Bend together and secure with tube couplings as described in Section

10.1.

Self-Drilling Screws
(QTY-2 per coupling)

18
(457mm)

Tube Coupling

U-Bend

11.3) ADDING OPTIONAL U-BEND REFLECTOR (PTU ONLY)

1. Place the U-Bend Reflector over the reflectors of each body section with the end resting next to the tube wire
hangers as shown.

2. Slide the speed clips on the reflector edges towards the end of the body section reflectors. Two speed clips are
required for each side of the U-Bend Reflector. Make sure that the speed clips fit tightly over both the U-Bend
Reflector and the reflector on each body section. Use two self-drilling screws to permanently secure both sides to
the reflectors.

3. Place the End Reflector flush with the U-Bend Reflector as shown. Note: Clearance between end of the U-Bend
Reflector and the U-Bend must be a minimum of 1”. Secure by sliding speed clips onto the end reflector edges.
Evenly space the speed clips on the sides (two each side) and top (three each) of the reflectors to provide a snug
fit.

Form #43343530
July 08 –23–

U-Bend Reflector
Part No. 43490000

End Reflector
Part No. 43490050

Speed Clip
Part No. 02266010
(QTY-7)

1 Clearance
(between end reflector
and u-bend)

Speed Clip
Part No. 02266010
(QTY-4)

#10 Self-Drill Screws
Part No. 02189020
(QTY-4)

Wire Hangers

12.0) ATTACHING BURNER BOX ASSEMBLY

1. Attach the burner box and gasket to end of tube flange and secure with 1/4-20 locknuts.

2. Assemble the optional end reflector flush with the end of the main body reflector. Secure by sliding speed clips
onto the reflector edges. Evenly space the speed clips on the sides (one each side) and top (two required) of the
reflectors to provide a snug fit. Leave a 3" space between the end reflector and the burner box assembly.

3. The heater can be mounted horizontally or at an angle of up to 45 degrees maximum from horizontal.

When angle mounting, the burner box unit must be positioned upright as shown below. FAILURE TO INSTALL THE
BURNER BOX IN AN UPRIGHT POSITION WILL VOID THE MANUFACTURER’S WARRANTY.

Speed Clip
(QTY-4)

DO NOT lift burner or support its
weight using the TISS wire. It will
break under heavy load.

Burner Box

Optional
End
Reflector

1/4-20 Locknut
(QTY-3 per flange)

Failure to install the burner box
suspension chain will void
manufacturers warranty.

Turnbuckle

Eye bolt

Burner Box Suspension

Tube Flange
Gasket

Upright Position

Burner
Box

Angle Mounting
Straight Tube Heaters

Reflector

Mounting Flange
24 Hole for Aluminized Steel Tubes
6 Hole for Alumi-Therm Steel Tubes

Upright Position

Burner
Box

Angle Mounting
U-Tube Heaters

Form #43343530
–24– JJuly 08

12.1) CONNECTING THE TISS SYSTEM

Description: The TISS (Tube Integrity Safety System) is designed to shut the main burner off in the event that a
burnout occurs in the first 10ft. section of firing tube. Note: When replacing the firing tube a new TISS wire assembly
PN 44176010 must also be installed.

Instructions:

1. Make sure that the gap between the burner box and end of reflector is 3” and the reflector is securely
attached to the reflector support bracket. Make adjustments if necessary.

TISS Assembly.

#10 x 1/2 Screws
must securely attach
reflector to the bracket

3 Gap (between
burner box and end
of reflector)

Step 1

2. Un-roll the TISS wire assembly from the spool. Be careful not to kink the wires.

Spool with
TISS Wire
Assembly

Step 2

Form #43343530
July 08 –25–

3. Hold the spring retainer clamp and pull the TISS wire assembly to end of reflector at overlap joint.
Slide spring retainer clamp over end of reflector as shown.

Step 3

Spring

Thimble

TISS Wire Assembly
PN 44176000

End View

Spring
Retainer Clamp

4. After attachment of the TISS, check to make sure that there is sufficient tension on the wire. Follow the
diagram below to increase or decrease the tension as necessary.

1. Measure the extension of the spring from the end of the reflector to the thimble as shown below.

11 extension

Thimble

Wire & Sleeving
Assembly

Wire & Sleeving
Assembly

Step 4

Spring
Retainer Clamp

Reflector End

2. Tape one end of the sleeve to the burner box
or use a marker.

3. Mark the other end of the sleeve with tape or
other marker. Use the top of the retainer as a
reference.

4. Loosen screws.

Spring

If the extension is less than 11 follow the
instruction below to increase the extension.

5. Pull one end of the sleeve and wire inside until
the marker is raised by the total adjusment length.
ie. if the extension is 10 then pull through 1 to
increase the exension to 11.

6. Tighten screws.

7. Check extension using the method in step 1.

Form #43343530
–26– JJuly 08

ANGLE MOUNTED HEATERS ONLY

5. If heaters are to be angle mounted, the TISS wire holder clamp must first be re-positioned as shown

using the bottom hole pattern of the clamp. Follow procedures described earlier for all other
adjustments.

End View

Re-position wire clamp using
bottom hole pattern.

Angle Mounted Body Section

Step 5

Form #43343530
July 08 –27–

13.0) GAS CONNECTIONS AND REGULATIONS

Tighten flexible gas hose and components securely.

Flexible metal gas hoses must be installed without any twists or
kinks in them. The hose will move during operation of the heater
and it can crack if it is twisted.

Failure to do so may result in death, serious injury or property
damage.

IMPORTANT BEFORE CONNECTING THE GAS TO THE HEATER

1. Connect to the supply tank or manifold in accordance with the latest edition of National Fuel Gas Code (ANSI
Z223.1), and local building codes. Authorities having jurisdiction should be consulted before the installation
is made. (In Canada, refer to the latest edition of CAN Standard B.149-1 & -2, Installation Codes for Gas
Burning Appliances and Equipment.)

2. Check 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 inlet supply pressures on Section 14.

5. All gas supply lines must be located in accordance with the required clearances to combustibles from the
heater as listed on the clearances label of the heater and section 4 of this manual.

6. Pipe joint compounds must be resistant to the action of liquefied petroleum gases.

7. Tube heaters will expand/contract during operation. Where local codes do not prohibit, a CSA or U.L.
approved flexible connector supplied with this heater is required for connections between the rigid piping
and the heater. A union should be installed before the burner box inlet. An approved shut off valve should
be installed within 6 feet of the union.

8. The gas pipe, flexible hose and connections must be self supporting. The gas pipe work must not bear any of
the weight of the heater or any other suspended assembly.

9. This appliance is equipped with a step-opening, combination gas valve. The maximum supply pressure to
the appliance is 14” W.C. or 1/2 P.S.I. If the line pressure is more than the maximum supply pressure, then
a second stage regulator which corresponds to the supply pressure must be used.

10. After all gas connections have been made, make sure the heater and all gas outlets are turned off before
the main gas supply is turned on slowly. Turn the gas supply pressure on and check for leaks. To check for
leaks, check by one of the methods listed in Appendix D of the National Fuel Gas Code.

11. If a 2

DO NOT USE AN OPEN FLAME OF ANY KIND TO TEST FOR

nd

stage regulator is used, the ball valve down stream in the supply line must be closed when purging
the gas lines to prevent gas seeping through it. If initial gas pressure is higher than 14” w.c. the redundant
combination gas valve is designed to lock out. Pressure build-up in the supply lines prior to the heater must
be released before proper heater operation.

LEAKS.

Form #43343530
–28– JJuly 08

KEY DIMENSIONS AND COMPONENTS OF THE GAS CONNECTIONS

Gas Pressure

Approved
Flexible Connector

14 to 17

(36 to 43cm)

2 (5cm) Max.
Displacement

*Second Stage Regulator with
Vent Leak Limiter to reduce the
Supply Pressure below 14 W.C.

* Available as Accessories

Burner Movement

RECOMMENDED GAS CONNECTION POSITIONS WITH 36 FLEXIBLE GAS HOSE

Alternate Positions

DO NOT install gas connector
vertically if fresh air is to be
connected.

Adaptor 1/2 NPT male

= 2 PSIG
Gas Supply

Piping

*Manual Gas
Shut Off Valve

Sediment Trap
(Drip Leg)

7 5/8

3 7/8 (10cm)

Adaptor 1/2 NPT female

6

END VIEW

Gas pipe work must not restrict
opening of hinged service doors.

Burner Movement

Minimum 1 (25cm)

SIDE VIEW

Certified connectors are recommended to be installed as shown, in one plane, and without sharp bends, kinks or
twists.

INCORRECT POSITIONS

Movement

Movement

WRONG

WRONG

Movement

WRONG

Movement

WRONG

Form #43343530
July 08 –29–

14.0) INSTRUCTIONS FOR PRESSURE TEST GAUGE CONNECTION

Never operate the heater with the access panel open or removed.

The access panels must be closed tightly with all the necessary
screws during operation.

Failure to do so may result in death, serious injury or property
damage.

The access doors on either side of the burner must
be securely fastened before operating the heater.

DANGER

FIRE HAZARD

Never operate the heater with the
access panel open or removed.
This access panel must be closed
tightly with all the necessary screws
during operation.
Failure to do so may result in death,
serious injury or property damage

43269050 Rev. A 03/08

SIDE VIEW

SUPPLY PRESSURE

1. The installer will provide a 1/8” N.P.T. tapped plug, accessible for test gauge connection immediately upstream
of the gas supply connection to the heater.

MANIFOLD PRESSURE– COMBINATION GAS VALVE IS FACTORY SET

Two-stage valves require that you check and adjust both high and low pressure regulator settings.

1. Turn the gas valve to the “OFF” position. Remove the 1/8” plug from the combination gas valve at the outlet
pressure tap and connect a 1/8” nipple to the tapped hole. Connect the gauge to the nipple. Turn on the gas
supply.

2. Set the heater to operate on high. With the main burner operating, check the full rate (high) burner manifold
pressure using a water manometer. Gauges that measure pressure in pounds per square inch are not accurate
enough to measure or set the manifold pressure. All measurements MUST BE made when this heater and all
other gas burning equipment that is connected to the gas supply system are operating at maximum capacity.

3. The combination gas valve is factory set and should not require adjustment. If high pressure adjustment is
required, remove the pressure regulator adjustment cap. Using a 3/32” hex Allen wrench, turn the inner
adjustment screw for HI pressure clockwise  to increase or counterclockwise  to decrease the gas pressure
to the burner.

4. After high pressure has been checked, check low pressure regulation.

5. Using a 3/32” hex Allen wrench, turn the inner adjustment screw for LO pressure clockwise  to increase or

counterclockwise  to decrease the gas pressure to the burner.

6. Once high and low pressures have been checked and adjusted, replace pressure regulator adjustment cap.

Gas pressures are shown in the table below.

GAS PRESSURE TABLE

SUPPLY PRESSURE

GAS TYPE

MANIFOLD PRESSURE

High Low

Minimum* Maximum

Natural Gas 3.5” W.C. 1.4” W.C. 5” W.C. 14” W.C.

Propane Gas 10.0” W.C. 4.0” W.C. 11” W.C. 14” W.C.

* Minimum permissible gas supply pressure for purpose of input adjustment.

Form #43343530
–30– JJuly 08

HI-LO
Adjustment Screws

Electric
Solenoid
Coil

Regulator
Vent Cover

(use 3/32 Hex
Allen Wrench)

INLET

HI

LO

1/8 NPT
Inlet Pressure
Tap with 3/16 Hex
Allen Wrench Plug

TWO-STAGE
GAS CONTROL VALVE

OFF

Gas Control
Knob

15.0) ELECTRICAL CONNECTIONS

ON

CAUTION
Never jumper these terminals. This
shorts out valve coil and may burn
out heat anticipator in thermostat.

Wiring
Terminals (3)

Ground
Terminals (2)

OUTLET

1/8NPT
Outlet Pressure
Tap with 3/16 Hex
Allen Wrench Plug

LO

C

HI

ELECTRIC SHOCK HAZARD

Disconnect electrical power and gas supply before servicing.

This appliance must be connected to a properly grounded electrical source.

Failure to do so may result in death or serious injury.

1. All electric wiring shall conform to the latest edition of the National Electrical Code (ANSI/NFPA No. 70), or

the code legally authorized in the locality where the installation is made.

2. The unit must be electrically grounded in accordance with the National Electrical Code (ANSI/NFPA No.

70-latest edition). In Canada, refer to current standard C22.1 Canadian Electrical Code Part 1.

3. The wiring providing power to the heater shall be connected to a permanently 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 accordance with the required Clearances to Combustibles below the heater as listed on the nameplate on
the heater.

5. Connection to the power supply is provided by a 18/3 gauge x 72” long cord with grounded 3 prong plug.

6. The post purge function of the burner (fan on for 30 seconds after the call for heat) will only be enabled

when using a 24 Volt thermostat. With the line Voltage thermostat post purge operation is disabled.

2-Stage Thermostat

24V 2 stage thermostat connection

HI

43269060 rev A

The two stage heater terminals must
only be supplied with 24V

C

LO

72 grounded 3 prong
electrical cord

Liquid tight fitting
must be tight to
prevent ingress of
moisture

Form #43343530
July 08 –31–

INTERNAL CONNECTION WIRING DIAGRAM — Direct Spark Ignition

CONNECTION WIRING DIAGRAM

Schéma de circuit de connexion

Ignition Module (Fenwal)

Bloc d'allumage

(W)TH

P.SW

V1

NC

IND

L1

(R) 24VAC

V2

GND

S1

HV

FACTORY WIRING

Circuit d'origine

FIELD WIRING

Connexions client

MONITORING LIGHTS

Lampes témoins

Red

Orange

Blue

Black

Black

Red

Blue

Green

Violet

Red
Light

Robinet à gaz

HI

Amber
Lights

Violet

High Voltage

Cable

Haute tension

Air Switch

pressostat

Gas Valve

LO

C

Flame Sensor

Terminal Block
(2-stage thermostat
connections)

LO

Red

Fuse 2A

Red

Transformer

Primary

120V

Secondary

Electrode

Gap 1/8

Écartement

d'électrode

3,2Êmm

HI

C

Red

Transformateur

bobine primaire 120ÊV

bobine secondaire 24ÊV

Fusible

24V

White

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.

TISS
(Tube Integrity

Safety System)

Red

Black

White

Blower

Moteur

d'amorce

d'aspiration

Green

Green

Terminal
Block

Plaque

Black
(ribbed)

Terminal

Block

Plaque

L1 Black

L2 Black
(ribbed)

GROUND

L1 (hot) 120V

L2 NEUTRAL

CONTINUE TO

ADDITIONAL

HEATERS

Vers les

autres

radiateurs

NOTES

:

IGNITION MODULE TERMINAL DESIGNATIONS

24VAC/R 24 VAC Supply to Module

TH/W Thermostat Input
PS/W Pressure Switch Input

GND System Ground

V1 Valve Power
V2 Valve Ground
L1 120/240 VAC Input (Hot)

IND Blower Output

NC Alarm (if equipped)
S1 Remote Flame Sensor

1. 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 Ga. CSA 600V Type TEW)

2. 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.

Form #43343530
–32– JJuly 08

FIELD CONNECTION WIRING DIAGRAMS

A. LOW VOLTAGE (24V) THERMOSTAT CONNECTIONS – SINGLE HEATER

Ground
N Neutral
L1 Hot (120V)

Fused
Disconnect
Switch

HI

C

LO

Receptacle

Continue To
Additional
Heaters

Power Supply
Cord (120V)

High FireLow Fire

Burner Control Box

B. LOW VOLTAGE (24V) THERMOSTAT CONNECTIONS – MULTIPLE HEATERS

Ground

N Neutral

L1 Hot (120V)

Fused
Disconnect
Switch

Terminal Block
(thermostat
connections)

Burner Control Box

HI

C

LO

Receptacle

Power Supply
Cord (120V)

1/4 Quick connect
terminals

Two-Stage Thermostat
(field supplied)

Receptacle

Burner Control Box

HI

C

LO

Continue To
Additional
Heaters

Power Supply
Cord (120V)

HI

24V

CHI

HI
FIRE

Relay Kit externally
mounted
(PN 44195000)

LO
FIRE

24V

LO

RELAY BOARD

LO

CHI

HI

3/16 Quick

HI

connect terminals

FIRE

LO
FIRE

LO

RELAY BOARD

LO

Continue To

24V Transformer
(field supplied)

Additional
Heaters

24V

C

High FireLow Fire

Two-Stage Thermostat
(field supplied)

Form #43343530
July 08 –33–









16.0) VENTING

CARBON MONOXIDE HAZARD

Heaters installed in an unvented mode require a minimum ventilation flow of
4 CFM per 1,000 Btu/hr of total installed capacity.

In buildings with airborne contamination such as poultry houses the heater
must be installed with fresh air for combustion.

Failure to do so may result in death, serious injury, property damage or illness
from Carbon Monoxide poisoning.

A. BASIC FLUE VENTING — Venting must comply with the latest edition of the National Fuel Gas Code (ANSI
Z223.1-latest edition) or the authority having jurisdiction. Other venting references are in the equipment volume of
the ASHRAE Handbook.

Model Heat

exchanger

Maximum vent length ft.
(4” diameter)

length ft

Maximum Fresh air
intake length ft (4”
diameter)

Max. combination of
fresh air and vent ft. (4”

diameter)
PTS/U 40/25 20 45 50 75
PTS/U 50/30 20 45 50 75
PTS/U 50/30 30 35 40 65
PTS/U 75/50 20 45 50 75
PTS/U 75/50 30 35 40 65
PTS/U 100/65 30 45 50 75
PTS/U 100/65 40 35 40 65
PTS/U 125/80 30 60 50 75
PTS/U 125/80 40 50 40 65
PTS/U 125/80 50 40 30 55
PTS/U 150/100 40 60 50 75
PTS/U 150/100 50 50 40 65
PTS/U 150/100 60 40 30 55
PTS/U 175/110 50 60 50 75
PTS/U 175/110
PTS/U 175/110
PTS/U 175/110

60 50 40 65
70 40 30 55

50 60 40 65
PTS/U 200/125 60 50 30 55
PTS/U 200/125

70 40 30 45

Vent lengths shown in the table are for horizontal and vertical venting. If a longer length of vertical or horizontal
venting is required contact the manufacturer for assistance with vent sizing.

SINGLE HEATER VENTING (VERTICAL THROUGH THE ROOF)

1. When venting the heater to outside of building through a roof, use single-wall metal pipe. This is to be
constructed of galvanized sheet metal or other approved noncombustible corrosion-resistant material as
allowed by state or local codes.

2. A vent passing through a combustible roof shall extend through an approved clearance roof thimble.
Double-wall, Type B vent must be used for the portion of the vent system which passes through the roof. An
approved vent cap (Leslie “VersaCap”-Type B or equal) must be attached to end of the flue.

3. The maximum equivalent length of vent pipe should be carefully observed. A safety switch in the heater is
designed to shut the heater off before excessive flue restriction causes bad combustion. Refer to the Vent
Sizing Table for maximum vent lengths and vent pipe diameter.

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. All portions of the vent pipe shall be supported to prevent from sagging (6’ spacing is recommended).

6. When the vent pipe passes through areas where the ambient temperature is likely to induce condensation of

Form #43343530
–34– JJuly 08

the flue gases, the vent pipe should be insulated and a condensation drain should be provided.

7. Minimum clearance for single-wall flue pipe to combustible material shall be 6 inches. This may be reduced
when the combustible material is protected as specified in the National Fuel Gas Code or the authority
having jurisdiction.

8. Single-wall metal pipe shall not originate in any unoccupied attic or concealed space and shall not pass
through any attic, inside wall or concealed space, or through any floor. For the installation of a single-wall
metal pipe through an exterior combustible wall, refer to latest edition of the National Fuel Gas Code or the
authority having jurisdiction.

9. A venting system shall terminate at least 3 ft. above any forced air inlet located within 10 ft.

2 ft (77cm) minimum

(when no wall or

parapet exists)

or less

Vent

2 ft (77cm)

minimum

Wall or

Parapet

4 Vent Pipe
(vertical position)

#10 Self-Drill
Screws
(typical)

Flue Adapter
Collar

4 Vent Elbow

Vent Cap (Leslie
VersaCap Type B)

Flashing

2 (5cm)
Clearance
Thimble

Seal Joint
and Annular
Space

10 ft (305cm)

4 Diameter

SINGLE HEATER VENTING (HORIZONTAL THROUGH SIDEWALL)

When venting the heater horizontally through a combustible outside sidewall, the same requirements listed
previously for venting Vertical Through The Roof apply except as follows:

1. A vent passing through a combustible wall must pass through an approved clearance thimble (Air-Jet #4VT
or Ameri-Vent #4EWT or other thimbles that are listed by a nationally recognized testing agency.

2. An approved vent cap (Breidert-Type L or equal) must be attached to the end of the vent pipe.

NOTE

: To minimize problems associated with condensation in long horizontal runs, vent pipe can be insulated.

3. Use the following correction factors to obtain the equivalent length when elbows are used:

c. Subtract 10 ft. for each elbow beyond 15 ft. from the heater.
d. Subtract 15 ft. for each elbow within 15 ft. of the heater.

4. Limit to (2) 90º elbows in the vent system.

5. When venting through a sidewall, the horizontal vent pipe shall fall not less than 1/2 inch per 20 feet from
the start of the vent system to the vent terminal. All portions of the vent pipe shall be supported to prevent
sagging. (6’ spacing is recommended)

6. A minimum clearance of 6 inches must be maintained between the outside wall and vent cap.

7. The horizontal venting system shall not terminate:

a. Less than 4 ft. (1.2m) below, 4 ft. (1.2m) horizontally from or 1 ft. (30cm) above any door, operable

window or gravity air inlet into any building. The bottom of the vent terminal shall be located at least 7

ft. (2.1m) above grade or above snow accumulation level as determined by local codes.
b. Less than 3 ft. (0.9m) from a combustion air inlet.
c. Less than 3 ft. (0.9m) from any other building opening or any gas service regulator.
d. Less than 7 ft. (2.1m) above public walkways.
e. Directly over areas where condensate or vapor could create a nuisance or hazard or be harmful to the

operation of gas utility meters, regulators, relief valves, or other equipment. Building materials should

be protected from flue gases and condensate.

8. In regions of the country where prevailing winds are consistently higher than 40 mph, it may be necessary to

terminate the vent system above the roof level.

Form #43343530
July 08 –35–

#10 Self-Drill
Screws
(typical)

4 Vent Pipe
(horizontal position)

6 (15cm)

minimum

2 (5cm)
Clearance
Thimble

Flue Adapter
Collar

1/2 (12mm) fall per 20 ft
(6m) toward vent terminal

Vent Cap
(Breidert or
equivalent Type L)

MULTIPLE HEATER VENTING (CONNECTIONS INTO A COMMON VENT OR MANIFOLD)

Requirements for venting of multiple heaters are the same as described for SINGLE HEATER VENTING except as
follows:

1. The common vent size and total vent height is normally determined by the number of heaters per common

vent, length of horizontal connector runs, and connector rise. Connector lengths should be as short as
possible and have a minimum 1/2 inch per 20 foot fall. Without regard to connector rise and total vent
height due to many possible venting configurations, the following should be observed:

a. Common vent pipe & vent connector diameter should be no less than that shown in the following Vent

Sizing Table.
b. The connector length should be no more than 75% of the vertical portion of vent above the connector.
c. Where possible, use a Y-connector to the common vent.

2. Material for connectors should be constructed of galvanized sheet metal or other approved noncombustible

corrosion resistant material as allowed by state or local codes. All common vent pipe should be 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.

Multiple Heater Vertical venting arrangement.

Vent Cap (Leslie
VersaCap Type B)

2 ft (77cm) minimum

(when no wall or

parapet exists)

Wall or

Parapet

2 ft (77cm)

minimum

Flue Collar

adaptor

To ta l
Vent

Height

Plan View

Flashing

2 (5cm)
Clearance
Thimble

Seal Joint
and Annular
Space

10 ft (305cm)

or less

See multiple

vent size table

for diameter

4 Diameter

single wall Vent

Connections to the common vent
must be arranged to avoid direct
opposition of exhaust products.

Form #43343530
–36– JJuly 08

Multiple Heater Horizontal venting arrangement.

Vent Cap

6 (15cm)

minimum

(Breidert or
equivalent Type L)

COMMON VENTING OF MULTIPLE HEATERS IN CONFINED SPACES IS
PROHIBITED. If any heater connected to a common vent system for
multiple heaters is found inoperative, the heater should be
disconnected from the vent system and its entrance into the vent
system capped.

Plan View

6 (15cm)

minimum

1/2 (12mm) fall per 20 ft
(6m) toward vent terminal

4 Diameter

single wall Vent

2 (5cm)
Clearance
Thimble

Swept Tee

See multiple

vent size table

for diameter

Flue Collar

adaptor

1/2 (12mm) fall per 20 ft
(6m) toward vent terminal

4 Diameter

single wall Vent

Swept Y

2 (5cm)
Clearance
Thimble

See multiple

vent size table

for diameter

Flue Collar

adaptor

VENT SIZING TABLE — Multiple Heater Venting

Number of Heaters

Horizontal and vertical Vertical Only

1 2 3 4

PTS/U 40/25 4” 4” 4” 4”
PTS/U 50/30 4” 4” 4” 5”
PTS/U 75/50 4” 4” 5” 6”
PTS/U 100/65 4” 5” 6” 6”
PTS/U 125/80 4” 5” 6” 7”
PTS/U 150/100 4” 6” 7” 7”
PTS/U 175/110 4” 6” 7” 8”
PTS/U 200/125 4” 6” 7” 8”

(If a size is not available use the next larger size.)

COMMON VENT DIAMETER

B. INDIRECT VENTING (UNVENTED HEATERS) — This heater requires ventilation in the building to dilute the

products of combustion and provide fresh air for efficient combustion. Where unvented heaters are used, gravity
or mechanical means shall be provided to supply and exhaust at least 4 CFM per 1,000 Btu/hr input of installed
heaters. Exhaust vents must be located at the highest point above and in the vicinity of the heaters, and the inlet
vents must be located below the level of the heaters. An exhaust hood (Part #42924000) must be placed on the
flue adapter collar located on the end of the last body section when used unvented and must be mounted only in

an downward position as shown.

4 (10cm) Exhaust hood PN 42924000
(point down away from ceiling)

#10 Self-Drill
Screws

Flue Adapter
Collar

(typical)

Form #43343530
July 08 –37–

17.0) AIR FOR COMBUSTION

If indoor combustion air is to be supplied for a tightly enclosed area, one square inch of free area opening shall be
provided below the heater for each 1,000 Btu/hr of heater input. Adequate clearances around the air inlet screen
must be maintained a t all times. In larger ope n area s of buildings, infiltration normally is adequate to provide air for
combustion.

17.1) 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 contaminants include paints, solvents,
corrosive vapors or any other foreign particles that may cause damage to the heater or result in poor combustion.

Outside combustion air can be brought directly to the heater by a 4” diameter duct less than 50 ft. long or equivalent
(see table in Section 16). This is attached to the 4” diameter starting collar (supplied with heater). The starting collar
is fitted to the rear of the burner box cabinet as shown below. An approved vent cap must be placed directly on the
end of the outside combustion air inlet pipe. The combustion air inlet should be not less than 3 ft. (0.9m), either
vertically or horizontally, from the flue vent termination. The air intake terminal must be located not less than 1 ft.
(30cm) above grade. It is good installation practice to supply combustion air from the same pressure zone as the
vent outlet. Avoid bringing combustion air to the heater from an attic space. There is no guarantee that adequate
combustion air will be supplied.

If the heater is installed less than 2 ft. from the ceiling, a combustion air inlet kit PN 44129510 must be provided to
allow for expansion/contraction of straight tube heaters (PTS series).

In colder climates, where necessary, insulate the outside combustion air duct. In high humidity applications, the
burner box should be sealed with silicone sealer.

Vertical

Through the roof

Combustion Air Cap
(Leslie VersaCap
Type B)

3 ft. (91cm)
Minimum

Horizontal

Through Sidewall

6 (15cm)
Minimum

Flashing

4 Diameter
Single-Wall Pipe

1/4 (6mm)
per ft. slope downwards
towards vent terminal

4 Spring
Tension Clamp (2 each)

(Part No. 30676040)

4 Starting Collar

Burner Box
(side view)

4 Flexible Air Inlet Hose
2 Ft. Long

(Part No. 30675020)



Form #43343530
–38– JJuly 08

In multiple heater applications, the combustion air intake may be ducted individually or common ducted in the same
configuration as shown for venting in Section 16.0. For combustion air intake duct sizing, please refer to the Vent
Sizing Table and use the diameter indicated, based on the number of heaters per duct.

SIDE VIEW

(straight configuration)

Flue vent termination
must be 1 ft. (30 cm)
higher than combustion

Combustion
Air Intake

air inlet cap.

18.0) LIGHTING AND SHUTDOWN INSTRUCTIONS

Never operate the heater with the access panel open or removed.

The access panels must be closed tightly with all the necessary
screws during operation.

Failure to do so may result in death, serious injury or property
damage.

The access doors on either side of the burner must
be securely fastened before operating the heater.

DANGER

FIRE HAZARD

Never operate the heater with the
access panel open or removed.
This access panel must be closed
tightly with all the necessary screws
during operation.
Failure to do so may result in death,
serious injury or property damage

43269050 Rev. A 03/08

SIDE VIEW

1) Turn on the gas and electrical supply. Rotate the gas valve knob counter-clockwise to the “ON” position.

2) Set the thermostat to call for heat (high fire). The blower motor will energize.

3) Ignition should occur after the 15-second pre-purge.

4) If the burner fails to light, or flame is not detected during the first trial for ignition (a period of approximately 15
seconds) the gas valve is de-energized and the control goes through an inter purge delay of approximately 60
seconds before another ignition attempt. The control will attempt two additional ignition trials before going into
lockout, and the valve relay will be de-energized immediately. The blower will be turned off following a post-purge
period of approximately 30 seconds.

5) If the heater does not light, manually reset the thermostat or shut off power completely for 5 minutes before
attempting to relight.

6) CAUTION:

The heater must be grounded. Poor grounding will give nuisance lockouts, particularly during

momentary power interruptions.

7) When the thermostat is satisfied with high heat, the heater will switch to low fire.

8) To shut off the heater, rotate the gas valve knob clockwise to the “OFF” position and turn off the gas at the
manual gas shut off valve supplying the heater and disconnect the electrical supply.

NOTE

: THE LIGHTING AND SHUTDOWN INSTRUCTIONS ARE ALSO SHOWN ON THE PERMANENT NAMEPLATE LABEL

ATTACHED TO THE HEATER.

Form #43343530
July 08 –39–

19.0) SEQUENCE OF OPERATION

The chart below shows the sequence of operation for the normal operating cycle of the PTS/PTU when connected
to a permanent 120V power supply and the heater is turned on and off by a remote 24V thermostat. (Electrical
connection diagram B).

Thermostat low fire

Thermostat high fire

Blower

Air switch

Red power light

Ignition

Gas valve low fire

Gas valve low fire

Gas valve high fire

Flame sensing

Amber valve light - low fire

Amber valve light - high fire

Call for heat, Thermostat on
15 secs pre-purge
15 secs trial for ignition

Normal high fire operation
flame sensing

Thermostat - high fire off

Thermostat (turn off)

30 secs post-purge

Heater OFF

T0 T1 T2 T3 T4 T5 T8

Function ON Function OFF

T6

T7

If the flame is not sensed during sequence T3 then the burner will automatically begin re-ignition sequence T2. The
ignition sequence will be repeated three times with a 60 second inter-purge. If the flame is not re-established the
heater will go to lockout.

Form #43343530
–40– JJuly 08

20.0) BURNER COMPONENT LOCATIONS

2

30

9

7

33

6

32

31

12

8

Note: This panel
must remain closed
for burner operation.

17

15

14

16

13

Legend

1 Cabinet Assembly
2 Access Panel - Top
3 Access Panel - Hinged (2 ea)
4 Access Panel - LH Burner
5 Access Panel - RH Burner
6 Air Inlet Screen
7 Gas Inlet Connection - 1/2NPT
8 Power Supply Cord - 120V
9 Burner Sight Glass
10 Indicator Light - Amber (Gas Valve)
11 Indicator Light - Red (Air Switch)
12 Tube Flange Connection
13 Main Burner
14 Flame Screen (200m/BTU units only)
15 Electrode
16 Flame Sensor
17 Main Burner Orifice
18 Air Restrictor Plate

18

4

3

10

22

34

23

11

Note: This panel
must remain closed
for burner operation.

3

5

24

21

26

35

25

19

:

20

28

27

19 Gas Control Valve
20 Ignition Module
21 Ignition Cable
22 Blower Assembly
23 Transformer - 120/24 VAC
24 Terminal Block/Fishpaper Shield
25 Air Switch
26 Air Sensing Tube (P1+)
27 Air Sensing Tube (P2-)
28 Manifold Pipe
29 Manifold Support Bracket/Clamp
30 Terminal Block (24V thermostat)
31 Terminal Block (TISS connection)
32 Starting Collar
33 Valve Holder Plate
34 Fuseholder/Fuse (2 amp)
35 Combustion Air Plate

1

29

Form #43343530
July 08 –41–

21.0) CLEANING AND MAINTENANCE

ELECTRIC SHOCK & EXPLOSION HAZARD

Disconnect electrical power and gas supply before
servicing.

Failure to do so may result in death or serious injury.

This heater must be cleaned and serviced annually by a qualified contractor before the start of each heating season
and at any time excessive accumulation of dust and dirt is observed. Maximum heating efficiency and clean
combustion will be maintained by keeping the heater clean.

The contractor shall check the following during periodic maintenance.

• Clearances to combustibles:

objects, liquids or vapors near the heater. See also Section 4.

• Reflectors:

output).

• Heat exchanger tubes:

signs of fatigue.

• Combustion air intake:

flashlight to make sure no foreign material has collected in the tubes and that there is no obstruction around the
air intake openings. Clean any foreign materials. Inspect any joints to make sure they are completely sealed. See
also Section 17.

• Venting System:

has collected in the pipes. Check the external vent cap and make sure that there is no obstruction around the
exhaust openings. Clean any foreign materials. Inspect any joints to make sure they are completely sealed. See
also Section 16.

• Gas lines:

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 13.

• Burner Box:

Check that the burner box is level, use the turnbuckle on the burner suspension eyebolt to adjust the level of the
burner. See also Section 9.

• Burner sight glass:

door. If there any signs of distortion, the sight glass must be replaced. See section 20 for sight glass location.

• Blower wheel and housing:

air. See section 20 for blower location.

• Electrode condition: Visually check that the electrode gap is maintained at 1/8” and that the tips of the flame

sensor and spark electrode are free from deposits. Clean off any deposits. Check that the electrode ceramic is
free from cracks. See Section 23.1

• Suspension system:

hanging securely, look for any evidence where the heater may have been hit accidentally and tighten any loose
hanging points. Check that S hooks are closed. Check that there is no evidence of wear on the chain at the
connection to the heater and at the ceiling.

• Tube Integrity Safety System:

Adjust tension if necessary. See section 12.1

• Main Burner and Orifice:

Section 23.1

Reflectors should be kept clean, at a minimum blow off the reflectors. (Dirty reflectors will reduce heat

Disconnect vent pipe and inspect internally using a flashlight to make sure no foreign material

Make sure that the gas lines are not leaking. Check the gas connection to the heater for any signs of

In order to extend the longevity of the heater, the heat exchanger tube and the burner must be level.

Check that the burner sight glass is clean and that the glass is sealed against the housing

Check that the suspension system is holding the heater level. Make sure that the heater is

Check that clearances are being maintained. Make sure there are no flammable

Inspect the heat exchanger tubes to make sure they are not cracked, sagging or showing

Disconnect combustion air intake from the burner box and inspect internally using a

Check that the blower wheel spins freely, blow out any dust or dirt with compressed

Check that the tension of the tube integrity safety system is maintained at 11”.

Check the Main burner and orifice, remove any dirt or debris including spider webs. See

Form #43343530
–42– JJuly 08

22.0) TROUBLESHOOTING GUIDE

Replace heat

exchanger tube,

reflector and TISS.

Yes

No

The TISS has broken

continuity. Check the

first tube and reflector

Check TISS wire for

a break if it is close to

the terminal repair.

Otherwise replace

TISS wire.

is there a hole?

No

Repair or replace

jumper check all wire

terminals.

No

Replace air switch.

Yes

No

Check the probes and

hoses to the air switch

are they clear and

Yes

Is the black tap on the

air switch connected

to the upper probe?

Yes

Does the LED on the

ignition module flash

once?

Yes

Clean out hoses and

unobstructed?

No

Switch hoses on the

No

Check NO terminal of

probes.

pressure taps.

the air switch

connection. Replace

if fuse carrier is tight

Check terminals for

red light.

Is there 24V between

No

No

transformer.

Is there 24V on the

Is there 24V between

Is the LED on the

and the fuse has no

continuity, replace the

fuse.

continuity at

transformer. If they

are good, replace

Yes

both terminals of the

TISS and ground?

Yes

other side of the fuse

carrier?

Yes

the inlet to the fuse

carrier and the

No

ignition module

steady ON?

No

ground?

Is there 24V between

both terminals of the

Is 120V at the terminal

block in the blower?

Check that red wire is

connected to TH from

Yes

Replace ignition

module.

No

thermostat connection

and ground?

Does the system have

a 24V individual

thermostat?

Yes

Yes

Replace ignition

modules.

No

air switch terminal C.

Repair connection.

Remove jumper, air

switch must be open

circuit first for blower

Yes

Yes

to operate.

Repair or replace

thermostat. Check

external wiring.

No

Are air switch

terminals jumpered?

Yes

No

Is the orange wire

from PSW connected

to the NO terminal of

the air switch?

No

Replace amber light.

Air switch is stuck in

the closed position.

Replace air switch.

Move orange wire to

NO terminal. Restart

troubleshooting.

Are the black wires

Are the blue wires

Restart

troubleshooting.

Yes

No

to the amber light

securely on the gas

valve terminals?

Yes

No

secure in the

terminals and firmly

on the ignition

module terminals?

Yes

Repair connection.

Restart

troubleshooting.

Repair connection.

Restart

troubleshooting.

No

24V between V1 and

V2 ignition module

terminals?

Replace ignition

No

Yes

steady ON?

No

Replace ignition

module.

module.

Yes

Troubleshooting

Does the blower

come on?

No

Turn on line voltage

and adjust thermostat

to the highest setting.

Does the red

monitoring light come

on?

Check line voltage

circuit. Repair fault.

No

No

Is 120V at the terminal

block in the blower?

Check terminals for

continuity and repair.

No

Yes

Is there 120V

between ground and

the L1 terminal on the

module?

Yes

During start up, is

there 120V between

ground and the IND

terminal on the

Yes

module?

Remove any

obstructions. Repeat

start up. If motor will

not run. replace

motor.

No

Yes

Disconnect the power

and check the blower

wheel. Does it turn

freely?

Yes

Does the LED on the

ignition module flash

once?

Yes

Replace motor.

Is the knob on the gas

valve turned to the

ON position?

No

Yes

Does the blower stay

on?

Move black light wire

to NO terminal of the

air switch. Restart the

troubleshooting.

No

Turn on the gas

valve?

After 15 seconds

post purge is there

Is the LED on the

ignition module

Yes

Does the low fire

amber light come on?

Form #43343530
July 08 –43–

continued on the next

page.

Contact factory for

assistance.

Yes

No

Check flame sense

wire does it have

continuity?

Yes

Replace flame sense

wire.

No

Replace amber light.

Restart

troubleshooting.

Yes

No

Are the black wires

to the amber light

securely on the gas

valve terminals?

Repair connection.

Yes

No

Is there 24V at the HI

terminal on the gas

valve?

Yes

Check terminal

connections to the

gas valve, are they

Yes

Is the there 24V

between the

thermostat terminal

No

Repair terminal

No

tight?

Repair terminal

block high fire contact

and ground (yellow

wire)?

Restart

troubleshooting.

connections. Restart

troubleshooting.

connections.

Check external

thermostat wiring and

thermostat set point.

Yes

No

Remove red wire

from the Low fire

terminal, is there 24V

at the center C

No

terminal?

Check the red wires

C should be

connected to the TISS

and LO connected to

W (TH) module

terminal.

See next page for

troubleshooting

sequence.

No

Yes

Through the

inspection window is

there a flame visible

during start up?

Yes

No

Is the knob on the gas

valve turned to the

ON position?

No

Replace ignition

module.

Yes

No

Check the micro

Amps at the FC-FC+

terminals of the

module is it greater

than 0.7µA with flame.

Yes

No

Is the heater properly

grounded?

Yes

No

Does LED on the

ignition module flash

three times?

Turn on the gas

valve?

Remove and inspect

flame sense

electrode. Is it clean

and the ceramic

intact?

Repair or replace

Yes

No

Check the terminal on

the flame sense

electrode, is it tight?

Correct grounding

problem.

Replace ignition

module.

Adjust terminal

flame sense

electrode.

connection. Restart

troubleshooting.

Replace amber light.

Restart

troubleshooting.

Yes

No

Are the black wires

to the amber light

securely on the gas

valve terminals?

Repair connection.

Yes

No

Is there 24V at the HI

terminal on the gas

valve?

Yes

Check terminal

connections, is the

yellow wire

Yes

Is there 24V between

the thermostat

terminal block low fire

No

Repair terminal

No

connected to the high

fire terminal?

Switch terminal

No

contact and ground?

Check external

Restart

troubleshooting.

connections. Restart

troubleshooting.

connections. Red wire

LO should be

connected to ignition

module W (TH)

terminal.

thermostat wiring and

thermostat set point.

Does the high fire

amber light come on?

Yes

Does the low fire

amber light stay on

past 10 seconds?

Yes

With the thermostat

set to low fire only

does the low fire

amber light come on

after 15 seconds?

Yes

Troubleshooting

continued on the next

page.

Form #43343530
–44– JJuly 08

Yes

Replace air switch

No

No

Replace blower

assembly.

No

Repair or replace

jumper check all wire

terminals.

No

Check the pressure

across the air switch

during hot running is

it higher than the

minimum required?

Yes

Replace air plate.

Yes

Remove blower does

the wheel turn freely?

Yes

Check vent and fresh

air lengths, are they

within the maximum

Yes

Check turbulator, are

the correct number of

lengths installed?

Check air plate

permissible?

No

Change number of

No

stamped part

numbers. Are they

correct?

turbulators.

Yes

Contact factory for

assistance.

Replace flame sense

wire.

Contact factory for

assistance.

Yes

Contact factory for

assistance.

Yes

No

Check flame sense

wire does it have

continuity?

Yes

Remove and inspect

flame sense

electrode. Is it clean

and the ceramic

intact?

Yes

No

Tighten terminals.

Restart

troubleshooting.

No

Repair or replace

flame sense

electrode.

No

Remove and re-insert

electrode. If it still

sparks to the side.

Replace electrode.

Yes

Is there are spark to

the side of the burner

cup?

Yes

No

Are the terminals tight

on the electrode and

the ignition module?

Replace electrode.

Carefully bend the

terminal away from

the burner casting.

Restart

Yes

No

Check the terminal at

the electrode does it

arc to the burner

casting?

No

Turn off gas and

check for spark. Is

there a spark to the

throat of the burner

No

Yes

Remove spark

electrode and

inspect, is the

ceramic cracked or

Yes

No

troubleshooting.

No

Replace flame sense

wire ignition cable. If

Yes

Check nameplate are

cup?

loose?

the gas type, orifice

Contact factory for

assistance.

Yes

problems persist

contact factory for

assistance.

Yes

and airplates correct

for the stated burner

specification?

Contact factory for

assistance.

No

No

Clean blower wheel.

Restart

troubleshooting.

Remove blower is the

Check the air intake

Does LED on the

wheel free from dirt

and dust?

No

Yes

Remove blockage.

and vent are there

any blockages?

Yes

ignition module flash

once?

No

Restart

Contact factory for

assistance.

No

Does LED on the

ignition module flash

troubleshooting.

Check gas pipe

No

Yes

three times?

Check the gas supply

Check the micro

Amps at the FC-FC+

Is the heater properly

grounded?

Remove burner

sizing, regulators and

system supply gas

pressures.

No

pressure with all the

heaters on. Does it

stay above the

minimum required?

casting and check

Yes

After an initial step

opening is the

terminals of the

module is it greater

than 0.7µA with flame.

Check the terminal on

the flame sense

electrode, is it tight?

Yes

No

Correct grounding

problem.

Yes

No

Remove blockage.

Restart

the orifice. Is it clean

and free from

blockage?

Yes

manifold gas

pressure correct?

troubleshooting.

No

Adjust manifold

pressure. Restart

troubleshooting.

Adjust terminal

connection. Restart

troubleshooting.

Yes

Adjust spark gap

carefully. Restart

troubleshooting.

Yes

Replace gas valve.

Troubleshooting

continued from

previous page

Check electrode

spark gap. Is it 1/8?

No

Check the manifold

gas pressure during

start up. Is it zero

inches w.c?

Yes

No

Check the inlet

pressure to the gas

valve. Is it between

the minimum and

maximum for the gas

pressure?

No

Yes

Is the LED on the

ignition module

steady on?

Yes

No

Remove burner and

check the orifice. Is it

clean and free from

blockage?

Yes

No

After an initial step

opening is the

manifold gas pressure

correct?

Adjust manifold gas

pressure.

Replace ignition

module.

Remove blockage.

Restart

troubleshooting.

Adjust manifold

pressure. Restart

troubleshooting.

Purge the gas supply

Does the amber light

stay on until the

thermostat turns off?

Troubleshoot Ends

Has all the air been

purged from the gas

supply lines?

lines.

Form #43343530
July 08 –45–

23.0) REPLACING PARTS

ELECTRIC SHOCK & EXPLOSION HAZARD

Disconnect electrical power and gas supply before
servicing.

Failure to do so may result in death or serious injury.

Only use genuine Space-Ray replacement parts. Parts are available from the factory for replacement by a licensed
person. Refer to the Replacement Parts Guide in Section 25 for all replacement parts.

23.1) REMOVAL OF MAIN BURNER AND ELECTRODES

The main burner can be inspected without removing the burner housing from the heat exchanger tube.

1

3

2

5

1/8 spark gap

4

7

8

6

1. Disconnect electrical supply and Remove cover 1.

2. Remove screw securing burner casting to the gas manifold.

3. Disconnect Spark lead and sensing wire.

4. Pull burner forward from the gas manifold and then out through the side of the box as shown.

5. Check that the spark gap is 1/8” between the electrode and the burner casting as shown. Spark electrode

should be clean and free from debris.

6. Flame sensor should be clean and free from debris.

7. Check ceramic on the spark electrode, for replacement into the box the spark electrode is the ¼” terminal

which connects to the spark lead.

8. Check ceramic on flame sense electrode, for replacement into the box the flame sense electrode is the

3/16” terminal which connects to the violet wire. (in some models the terminal is ¼” painted violet)

Form #43343530
–46– JJuly 08

23.2) REMOVAL OF GAS VALVE AND MANIFOLD ASSEMBLY

Loosen screws from

Step 1

Remove side
access panel.

Step 2

manifold clamp and
burner assembly.

Open hinged access
panel and disconnect

Step 3

wires from gas valve.

23.3) AIR SWITCH PRESSURE CHECK

P1
+

Connector
Tees

-

+

0.65 WC

P1
+

P2

-

Digital or Inclined
Water Manometer
scale 0-2w.c.

Air
Switch

P2

-

Temporary 1/4 ID Silicone /
plastic tubing for pressure
test.

Step 4

Remove (6) screws from
end panel. Rotate gas valve
and manifold assembly
slightly counter-clockwise
and slide out from housing.

Common C

Normally
open NO

1. Open hinged access panel.

2. Add tubing to connect the air switch tubing P1 + and P2 - with the connector tees and the probes P1+ and P2+.

Form #43343530
July 08 –47–

3. Connect plastic tubing of a digital or inclined water manometer with a 0-2” scale onto the connector tees.

4. Turn heater on and wait until blower motor is activated.

5. Observe air pressure from manometer. This should be higher than the set point indicated below for correct
operation.

Model

Operating Pressure

Model

Operating Pressure
PTS/U 40/25 0.98” W.C. Hot PTS/U 125/80 0.39” W.C. Hot
PTS/U 50/30 0.98” W.C. Hot PTS/U 150/100 0.39” W.C. Hot
PTS/U 75/50 0.70” W.C. Hot PTS/U 175/110 0.39” W.C. Hot
PTS/U 100/65 0.70” W.C. Hot PTS/U 200/125 0.39” W.C. Hot

All pressures are with the heater in operation for at least 15 minutes.

23.4) IGNITION SYSTEM CHECKS

TO CHECK FLAME SENSOR CIRCUIT.

Flame current is the current which passes through the flame from the sensor to ground. The minimum flame

current necessary to keep the system from lockout is 0.7 microamps.
a) Turn off heater at thermostat.
b) Connect a me ter (dc mi cro amm ete r sca le) in seri es wi th the ground le ad as sho wn in the diagra m. Con nect the

meter as follows:

 Connect the black (negative) meter lead to the electronic control FC- terminal.

 Connect the red (positive) meter lead to the electronic control FC+ terminal.

c) Restart the system and read the meter. The flame sensor current must be steady and measure at least 0.7

microamps.
d) If the meter reads less than the minimum or if reading is unsteady:

 Make sure burner flame is capable of providing a good rectification signal.

 Make sure fasteners securing igniter/sensor are tightened to assure correct positions. DO NOT relocate

igniter/sensor.

 Check for excessive (over 1000ºF) temperature at ceramic insulator on flame sensor. Excessive temperature

can cause short to ground. DO NOT relocate igniter/sensor.

 Check for cracked ceramic insulator, which can cause short to ground, and replace sensor if necessary.

 Make sure that electrical connections are clean and tight. Replace damaged wire.

e) If the meter reads below “0” on the scale, meter leads are reversed. Disconnect power and reconnect meter

leads for proper polarity.
f) Remove microammeter. Return system to normal operation.

IGNITION MODULE DIAGNOSTICS

Flame Fault

If at any time the main valve fails to close completely and maintains a flame, the full time flame sense circuit will
detect it and energize the combustion blower. Should the main valve later close completely removing the flame
signal, the combustion blower will power off following the post purge period.

Fault Conditions

MULTIPURPOSE METER

Error Mode LED Indication

Flame Sensor Current Check

Internal Control Failure Steady On
Air Flow Fault 1 Flash
Gas valve failure (stuck open) 2 Flashes
Ignition Lockout 3 Flashes

The LED located on the ignition module will flash ON
for ¼ second, then OFF for ¼ second during a fault
condition. The pause between fault codes is 3
seconds.

Form #43343530
–48– JJuly 08

S1
GND
V2
(R) 24VAC

L1

IND

NC
V1
P.SW
(W)TH

Ignition Module (Fenwal)

FC-

FC+

BLACK (-)

RED (+)

LED Display

USE
MICROAMP
SCALE

24.0) INSTALLATION DATA

Date of Installation: # of Heaters in System:

Serial No.

N = Natural Gas

Model: PTS or PTU

L = Propane Gas

25.0 REPLACEMENT PARTS GUIDE – BURNER BOX

Item

No. Part No. Description Qty.

Fasteners

1 02295040 PHTCS #6-32 x 3/8" 3

1a 02266010 Speed Clips (for air inlet plate) 2

2 02261030 HHTCS #8-32 x 3/8" (green coated) 1
3 02242050 PHTCS #8-32 x 3/8" 5
4 02215020 HHMS #8-32 x 3/4" 2

5 02167010 Locknut 1/4-20 Keps 5

5a 02309000 Eyebolt 1/4-20 x 2” 1

6 02167040 Locknut #8-32 Keps 9
7 02212020 HWHSMS #8 x 1/2" “B” Point (typical all access panels) 45
8 02132020 Rivet 1/8" 14

Housing Components

9 44139990 Housing Assembly (welded) 1
9a 44140111 Valve Holder Plate 1
10 44140000 Access Panel (top) 1
11 44140040 Access Panel (hinged) 2

11a 02201070 Hinge 1-1/16” x 6” 2

12 44140058 Access Panel (LH burner end) –with sight glass- 1
13 44140090 Access Panel (RH burner end) 1
14 4414006x Combustion Air Plate (see size requirements in section 5.0) 1

Burner Components

15 42700500 Burner, Investment Casting - Machined 1
16 44146030 Manifold Support Bracket 1

17 44146040 Manifold Support Clamp 1

17a 44146050 Manifold Extension Bracket 1

18 30703000 Blower Assembly 1
19 30632500 Spark Module - Fenwal-24V #35-615935-197 1

20 30702010 Flame Sensor #PSE-GF24 1
21 30702020 Electrode #PSE-GF25 1

22 30281000 Terminal Block #EK-204 1

22a 30738030 Terminal Bushing (3 x ¼” tabs) 1
22b 30713000 Fuse Holder 1

22c 30202000 Fuse 1/4 x 1-1/4” (2 amp) 1

22d 30738020 Terminal Bushing (2 x ¼” tabs) 1

23 30279000 Transformer 120v-24V 20VA 1
24 02175020 Strain Relief #SR-6P3-4 (ignition cable) 1

25 02175060 Strain Relief #SR-2M-1 (flame sensor wire) 1
26 30514020 Grommet .250ID #739 (air sensing tube) 1

26a 30512020 Split Bushing #2871 (misc. wiring, ignition cable, sensor wire) 2

27 30700040 Grommet, Pipe Sealing 1/2" #63595K34 1
28 42447000 Sight Glass (1-5/8" square plexiglass) 1

Form #43343530
July 08 –49–

29 42744079 Air Sensing Tube Asm. (straight) 1/4"od 1
30 42744069 Air Sensing Tube Asm. (90 deg bend) 1/4" 1
31 30635030 Cord Connector 1/2” #LPCG50 1
32 03988100 Plastic Vacuum Air Tube 10" (P2- to static pressure point) 1
33 03988100 Plastic Vacuum Air 10" (P1+ to total pressure point) 1
34 43563040 Supply Cord -Flat (SPT-1 18/3 x 72" long) 1
35 42709000 Shield, Terminal Block 1
36 42395010 Gasket, Blower 1
37 03946010 Sealing Strip 1/8" x 3/8" wide (access panels) -not shown- Ft.

38 42752250 Air Inlet Screen 1

38a 30504040 Starting Collar (combustion air inlet) 1

39 30701240 Ignition Cable - Female (2) 1/4" QC x 24"lg #PSE-GF23 -not shown- 1
40 44145060 Manifold Pipe – 6-1/4”lg 1

40a 03333140 Pipe Nipple – 4”lg 1

41 30333250 Gas Valve #VR8205Q-3819 (natural gas) 2-stage 1

41a 30333260 Gas Valve #VR8205Q-3827 (propane gas) 2-stage 1

42

42a

43 03259xxx Main Burner Orifice #7/16-27 (see size requirements in section 5.0) 1
44 42741150 Air Restrictor Plate 2-3/4” 1
45 44151010 Burner Screen Sub-Assembly (PTS/PTU 200 only) 1
46 42398030 Monitoring Light – Amber (gas valve operation) 2
47 42398150 Monitoring Light – Red (air switch operation) 1
48 30186250 Air Switch (set point @ .93”WC) PTS/PTU40 & 50 1

48a 30186260 Air Switch (set point @ .65”WC) PTS/PTU75 & 100 1
48b 30186270 Air Switch (set point @ .34”WC) PTS/PTU125,150,175 & 200 1

Labels/Manual

49 42848000 Label, Nameplate (Space-Ray) 1
50 42013000 Label, Logo (Space-Ray) (Not Shown) 1
51 43344070 Label, Clearances to Combustibles 1

52 42874030 Label, Wire Connection Diagram 1
53

54 42875000 Label, Warning (installation/configuration/chemical) 1
55 43269060 Label, 2 stage 24V Thermostat Connection 1

56 43269020 Label, TISS Connection 1
57 43269030 Label, Eyebolt Suspension Warning 1
58 43269040 Label, Gas Valve in “OFF” Position 1
59 43269050 Label, Burner Warning (access panel must remain closed) 1
60 43344110 Label, Flex Gas Connector 1
61 42785010 Label, Ladder Wiring Connection 1
62 42834000 Label, 120V Caution 1
63 42922030 Label, Sidewall Venting 1
64 43343530 Installation & Operation Manual (Not Shown) 1

Tube Integrity Safety Switch (TISS) Components

65 44175000 Retainer clamp 1
66 30519020 Spring 1
67 30736000 Thimble 1
68 44176010 TISS replacement assembly 1

Form #43343530
–50– JJuly 08

9a

35

7

23

38a

5, 5a

38

22a

22

3

61

Red
Light

6

120V

Transformer

24V

Amber

TISS

Light

Thermostat

MV MV

Motor
Gas
Valve

Air
Switch

Flame
Sensor

S1

L1

HV

V2

V1
NC

IND

Igniter

GND

P.SW

(W)TH

24VAC

Ignition Module

SCHEMATIC WIRING DIAGRAM

42785020 03/08

24

25

26a

7

27

31

1

43

2

3

40

46

47

48

7

17a

40a

41, 41a

30

29

36

22d

26

18

1a

CONNECTION WIRING DIAGRAM

Schéma de circuit de connexion

(R) 24VAC

Ignition Module (Fenwal)

Bloc d'allumage

FACTORY WIRING

Circuit d'origine

FIELD WIRING

Connexions client

Optional Low

TISS

Red

Terminal Block

Voltage (24V)

(Tube Integrity

Light

Plaque à

Thermostat

Safety Switch)

bornes

Remove jumper wire.

Remove jumper wire.

Blue

Blue

GROUND

L1 (hot) 120V

L2 NEUTRAL

Terminal

Air Switch

Block

Blue

pressostat

(jumper)

Red

Draft Inducer

(W)TH

Gas Valve

Fuse 2A

Motor

Red

Robinet à gaz

P.SW

Fusible
Moteur
d'amorce

V1

Orange

d'aspiration

Amber

NC

Light

Black

IND

Black

L1

Green

Blue

V2

Orange
Green

GND

Electrode

Violet

S1

Gap 1/8

HV

High Voltage Cable

Haute tension

Écartement

If any of the original wire as supplied with the

d'électrode

appliance must be replaced. It must be

3,2Êmm

replaced with wiring material having a
temperature rating of at least 105oC. (18

Violet

AWG. - UL / CSA 600V Type TEW)

Flame Sensor

MONITORING LIGHTS

When connecting the supply circuit to the

Lampes témoins

heater, wiring material having a minimum size
of 14 AWG and a temperature rating of at
least 90oC shall be used.

52

Blue

(jumper)

Blue

Terminal Block

Transformer

Plaque à

Primary 120V

(line voltage)

bornes

THERMOSTAT

Secondary 24V

Black

L1 Black

L2 Black

White

(ribbed)

Transformateur
bobine primaire 120ÊV
bobine secondaire 24ÊV

Yellow

Green

Black
(ribbed)

CONTINUE TO
ADDITIONAL

HEATERS

Vers les autres

radiateurs

42874020 6/07

22c

1

22b

21

3

15

45

3

3

20

5

14

44

1a

10 22a

UN MUR LATÉRAL

SIDEWALL VENTING ONLY

Note: When venting a single

Nota: le conduit d'échappement
d'un radiateur simple traversant

heater horizontally through a

un mur combustible doit passer

combustible outside wall the

dans une gaine de 2 po (Air Jet

vent must pass through a 2

n° 4VT ou Ameri-vent n° 4EWT

clearance thimble (Air Jet No.

ou autre gaine normalisée par

4VT or Ameri-vent No 4EWT

un organisme d'essai reconnu

or other thimbles which are

à l'échelle nationale.
listed by nationally recognized
testing agency.

Poser un capuchon d'évent

(Breidert n° 4L ou équivalent)
Attach a vent cap (Breidert No.
4L or equivalent)

Longueur minimale équivalente

du tuyau d'échappement = 1,5m

(5pi)
Minimum equivalent length of

Longueur maximale équivalente
vent pipe = 5ft (1.5m)

du tuyau d'échappement = 15m
Maximum equivalent length of

(50pi)
vent pipe = 50ft (15m)

LIGHTING & SHUTDOWN INSTRUCTIONS

1. Turn on gas & electrical supply.

2. Set thermostat to call for heat.

Infrared Radiant Tube Heater

3. Ignition should occur after prepurge.

Radiateur à tuve rayonnant à infrarouge

4. If ignition fails, the unit will spark for approximately 21 seconds
& go into safety lockout. Turn thermostat (or power) off for 60

For indoor installation only

seconds to take out of lockout.

Installer à lintérieur seulement

5. If heater does not light, shut off gas completely for 5 minutes

Vented or Unvented

before attempting to relight.

Gas Fired products Inc. Charlotte, NC

6. To shut down the heater, turn off the gas & electrical supply.

ANSI Z83.20b / CSA 2.34b - 2003 Tel: [phone] e-mail [e-mail]

INSTRUCTIONS DALLUMAGE ET DE FERMETURE

SERIAL NO.

MODEL NO.

1. mettre la valve a gaz et linterrupteur a ON.

2. Creer une demande de chauffage au thermostat.

No. de Modelè

No. de Série

3. Lallumage devrait se produire apres de prepurge.

ALTITUDE

CODE DATE

4. Si lallumage ne se fait pas, le controle dallumage continu de
produire des etincelles sur une periode de 21 sec. et ensuite
tomber en securite. Mettre le thermostat (ou le courant) en

INPUT Btu/Hr

GAS TYPE

position darret (OFF) pour une periode de 60 sec. a fin
dinterrompre le processus de securite.

Consommation Btu / Hr

Type de Gaz

5. Si lappareil ne sallume pas, fermez le gaz completement pour

SUPPLY PRESSURE

MAXIMUM

une period de 5 min. avant deffectuer une nouvelle tentative

MINIMUM

dallumage.

Pression de Sortie

6. Pour fermer lappareil, fermez le gaz et le courant electrique.

MANIFOLD PRESSURE

ORIFICE SIZE

Installation in:

1. Aircraft hangers must be in accordance with the standard for Aircraft Hangers.

Pression a lechappement

Dimensions bec Veilleuse

ANSI/NFPA 409 (latest edition).

2. Public garages must be in accordance with the standard for parking structures,

ELECTRICAL:

MAX ANGLE:

ANSI/NFPA 88a (latest edition), or with the standard for repair garages,

Max Angle

Electrique

ANSI/NFPA 88b (latest edition)

DANGER

FIRE HAZARD

Never operate the heater with the
access panel open or removed.
This access panel must be closed
tightly with all the necessary screws
during operation.
Failure to do so may result in death,
serious injury or property damage

12 8, 28 13

63

AÉRATION

WARNING

ELECTRIC SHOCK

HAZARD

Disconnect electrical supply
before servicing
Failure to follow these
instructions may result in
death, serious injury or
property damage.

THIS UNIT EQUIPPED WITH A
2 AMP IN LINE-FUSE FOR
OVERCURRENT PROTECTION
OF CONTROL CIRCUIT

42922030 Rev - 11/07

ATTENTION INSTALLER!

THE GAS CONTROL VALVE IS FACTORY
SET AT OFF POSITION. OPEN THIS
ACCESS PANEL TO TURN THE GAS
VALVE TO ON POSITION. BY THIS
ACTION YOU CERTIFY THAT ALL GAS

42848000 Rev. H 10/04

CONNECTIONS AND CHECKS COMPLY
WITH WRITTEN I & O INSTRUCTIONS
SHIPPED WITH THIS HEATER.

43269040 12/0743269040 12/0743269040 12/07

WARNING: Improper

AVERTISSEMENT: Une

installation, adjustment,

installation, un réglage, une

alteration, service or

modification, une réparation

maintenance can cause

ou un entretien incorrect peut

property damage, injury

entraîner des dommages

or death. Read the

matérials, des blessures ou

Installation, Operating

la mort. Lisez attentivement

and Maintenance

les instructions dinstallation,

Instruction thoroughly

de fonctionnement et

before servicing this

dentretien avant de procéder

equipment.

à linstallation ou à lentretien

de cet équipment.
This heater can be
installed in various

WARNING: This product
configurations as shown

contains a chemical known
in the heater layout

to the state of California to
section of the instructions

cause cancer.

43269050 Rev. A 03/08

WARNING: If not

installed, operated and
maintained in accordance
with the manufacturers
instructions, this product
could expose you to
substances in fuel or from
fuel combustion which can
cause death or serious
illness and which are
known to the State of
California to cause cancer,
birth defects or other
reproductive harm.

38a

BURNER SUSPENSION CHAIN
MUST BE USED TO SUPPORT
BURNER BOX. FAILURE TO USE

EYEBOLT SUSPENSION WILL VOID
MANUFACTURERS WARRANTY.

USE A TURNBUCKLE FOR LEVEL
ADJUSTMENT OF BURNER BOX.

43269030 12/07

2-Stage Thermostat

HI
C
LO

43269060 rev A

55

58

54

42875000 Rev. E 10/04

59 49 59 61

57

9

31

34

51 56

Combustible material must be located outside the clearance dimensions listed.

Failure to do so may result in death, serious injury or property damage

Models: PC(S,A)

Horizontal

Montage horizontal

Model No A B C D E F

B

75 27 6 60 30 48 12

(69cm) (15cm) (152cm) (76cm) (122cm) (30cm)

AA

100 66 6 88 40 66 20

(168cm) (15cm) (224cm) (102cm) (168cm) (51cm)

C

125 66 6 101 40 66 20

45 degrees

(168cm) (15cm) (257cm) (102cm) (168cm) (51cm)

Montage à 45°

B

150 84 6 106 48 84 24

(213cm (15cm) (269cm) (122cm) (213cm) (61cm)

E

F

Ceiling Clearance is 18 (46cm) when installed in an UNVENTED configuration. Ceiling

C

clearance is 18 (46cm) when the optional U-bend reflectors are not used.

D

D

Le dégagement au-dessus de l'appareil doit être d'au moins 46 cm quand l'appareil est installé
SANS ÉCHAPPEMENT. Le dégagement au-dessus de l'appareil doit être d'au moins 46cm

quand les réflecteurs d'angle optionnels ne sont pas utilisés.

43344080 10/07

Install the gas flexible hose as shown in the diagram below:
Sharp bends, kinks, twists and tension in the hose may cause failure resulting in a gas leak.
Failure to follow these instructions may result in death, serious injury or property damage.

RECOMMENDED GAS CONNECTION POSITIONS WITH 24 FLEXIBLE GAS HOSE

Alternate Positions

Sediment Trap

Optional Second Stage Regulator with

Position 1 Position 2

(Drip Leg)

Vent Leak Limiter if required to reduce
the Supply Pressure below 14 W.C.

B

B

C

12

7 5/8

(305mm)

194mm

Flexible
Connector

Gas pipe work must

A

6

not restrict opening of

150mm

A

Burner Movement

hinged service doors.

END VIEW

SIDE VIEW

Position A B C
1 6 3/4 (171mm)9 5/8 (245mm) 3 7/8 (99mm)

43344110 03/08

2 9 1/8 (232mm)7 5/8 (194mm) 3 7/8 (99mm)

DANGER

FIRE HAZARD

Never operate the heater with the
access panel open or removed.
This access panel must be closed
tightly with all the necessary screws
during operation.
Failure to do so may result in death,
serious injury or property damage

43269050 Rev. A 03/08

118, 11a

65 66 67 68

1818

23

23

48, 48a

19

TUBE INTEGRITY SAFETY SYSTEM

FRAGILE! DO NOT Lift the burner box by
these wires.
The system must be installed with tension
on the spring.

11

Reflector edge.

In the event of tube failure the wire inside
the sleeve will break. For safety replace
the entire wire assembly including the
sleeve PN 44176010
Patent Pending

22a

43269020 Rev. B 03/08

3332

16 17

15

Form #43343530
July 08 –51–

BODY COMPONENTS

ITEM

PART NO. DESCRIPTION

1 02266010 Reflector Speed Clip
2 43980010 Wire Hanger
3 42873000 “U” Bolt Clamp, 4” OD Tube

3a 02127110 5/16-18 Hex Nut (2 per “U” Bolt)

4 43318000 Tube Support/Hanger Bracket, 13”
5 43319050 Reflector, 4’-11½” long (5’ section only; 1 per 5 ft. body section)
6 43319100 Reflector, 9’-11½” long (10’ section only; 1 per 10 ft. body section)
7 43320000 End Reflector (optional)
8 43342000 Corner Reflector Package (optional)
9 42921000 Tube Flange Gasket

10* 44028170 10’ Tube Assembly Kit, 4” OD, ATC steel with one 6-hole flange (start tube)

10a** 44028030 10’ Tube Assembly Kit, 4” OD, ALC steel with one 24-hole flange (start tube)

11 44028100 10’ Tube Assembly Kit, 4” OD, HRS steel without flanges (extension tube & exhaust tube)

11a 44028060 10’ Tube Assembly Kit, 4” OD, ALC steel without flanges (extension tube & exhaust tube)

12 44028120 5’ Tube Assembly Kit, 4” OD, HRS steel without flanges (extension tube & exhaust tube)

12a 44028010 5’ Tube Assembly Kit, 4” OD, ALC steel without flanges (extension tube & exhaust tube)

13 43208010 4” O.D. Elbow Package
14 02189020 #10 x ½” Self-Drilling Screw
15 30462980 4” OD Tube Compression Coupling w/bolts
16 43208020 4” OD U-Bend (Required for PTU Only)
17 43488000 U-Bend Reflector (PTU Option)
18 30504500 Flue Adapter Collar
19 44152240 Turbulator (see specifications section 5.0 for quantities)

* Required on 40ft, 50ft, 60ft and 70ft systems for mounting of control box.
** Required on 10ft, 20ft and 30ft systems for mounting of control box.

17

1

16

6

14,15

2

10,10a,11,11a

7

3

1

9

4

3a

10 FT
BODY COMPONENTS

8

13

4

14,15

3a

5 FT
BODY COMPONENTS

5

3

1

7

12,12a

2

19

14,18

ALL ILLUSTRATIONS ARE INTENDED TO GIVE THE GENERAL IMPRESSION OF UNITS ONLY. OTHER COMBINATIONS OF 5 FT. AND 10 FT. SECTIONS,
AND ONES WITH OR WITHOUT THE ELBOW PACKAGE ARE POSSIBLE. PLEASE CONSULT WITH YOUR Space-Ray SALES REPRESENTATIVE. WE
RESERVE THE RIGHT TO ALTER ANY SPECIFICATION WITHOUT NOTICE.

Form #43343530
–52– JJuly 08