Trane Gas Unit Heaters Installation and Maintenance Manual
Installation, Operation,
and Maintenance
Gas Unit Heater
Tubular Gas-Fired Direct Spark Propeller Unit Heater
SAFETY WARNING
Only qualified personnel should install and service the equipment. The installation, starting up, and
servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific
knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could
result in death or serious injury. When working on the equipment, observe all precautions in the literature
and on the tags, stickers, and labels that are attached to the equipment.
March 2012 GTND-SVX01B-EN
Warnings, Cautions and Notices
Warnings, Cautions and Notices. Note that warnings,
cautions and notices appear at appropriate intervals
throughout this manual. Warnings are provide to alert
installing contractors to potential hazards that could result
in death or personal injury. Cautions are designed to alert
personnel to hazardous situations that could result in
personal injury, while notices indicate a situation that
could result in equipment or property-damage-only
accidents.
Your personal safety and the proper operation of this
machine depend upon the strict observance of these
precautions.
Read this manual thoroughly before operating or servici ng
this unit.
ATT EN TI ON : Warnings, Cautions and Notices appear at
appropriate sections throughout this literature. Read
these carefully:
WARNI NG
CAUTIONs
NOTICE:
Indicates a potentially hazardous
situation which, if not avoided, could
result in death or serious injury.
Indicates a potentially hazardous
situation which, if not avoided, could
result in minor or moderate injury. It
could also be used to alert against
unsafe practices.
Indicates a situation that could result in
equipment or property-damage only
Important
Environmental Concerns!
Scientific research has shown that certain man-made
chemicals can affect the earth’s naturally occurring
stratospheric ozone layer when released to the
atmosphere. In particular, several of the identified
chemicals that may affect the ozone layer are refrigerants
that contain Chlorine, Fluorine and Carbon (CFCs) and
those containing Hydrogen, Chlorine, Fluorine and
Carbon (HCFCs). Not all refrigerants containing these
compounds have the same potential impact to the
environment. Trane advocates the responsible handling of
all refrigerants-including industry replacements for CFCs
such as HCFCs and HFCs.
Responsible Refrigerant Practices!
Trane believes that responsible refrigerant practices are
important to the environment, our customers, and the air
conditioning industry. All technicians who handle
refrigerants must be certified. The Federal Clean Air Act
(Section 608) sets forth the requirements for handling,
reclaiming, recovering and recycling of certain
refrigerants and the equipment that is used in these
service procedures. In addition, some states or
municipalities may have additional requirements that
must also be adhered to for responsible management of
refrigerants. Know the applicable laws and follow them.
WARNING
Proper Field Wiring and Grounding
Required!
All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards. To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/state electrical codes. Failure to
follow code could result in death or serious injury.
WARNING
Personal Protective Equipment (PPE)
Required!
Installing/servicing this unit could result in exposure to
electrical, mechanical and chemical hazards.
• Before installing/servicing this unit, technicians
MUST put on all Personal Protective Equipment (PPE)
recommended for the work being undertaken.
ALWAYS refer to appropriate MSDS sheets and OSHA
guidelines for proper PPE.
• When working with or around hazardous chemicals,
ALWAYS refer to the appropriate MSDS sheets and
OSHA guidelines for information on allowable
personal exposure levels, proper respiratory
protection and handling recommendations.
• If there is a risk of arc or flash, technicians MUST put
on all Personal Protective Equipment (PPE) in
accordance with NFPA 70E or other country-specific
requirements for arc flash protection, PRIOR to
servicing the unit.
Failure to follow recommendations could result in death
or serious injury.
ATTENTION: READ THIS MANUAL AND ALL LABELS
ATTACHED TO THE UNIT CAREFULLY BEFORE
ATTEMPTING TO INSTALL, OPERATE OR SERVICE THESE
UNITS! CHECK UNIT DATA PLATE FOR TYPE OF GAS AND
ELECTRICAL SPECIFICATIONS AND MAKE CERTAIN THAT
THESE AGREE WITH THOSE AT POINT OF INSTALLATION.
RECORD THE UNIT MODEL AND SERIAL No.(s) IN THE
SPACE PROVIDED. RETAIN FOR FUTURE REFERENCE.
© 2012 Trane All rights reserved GTND-SVX01B-EN
WARN ING
Hazardous Service Procedures!
The maintenance and troubleshooting procedures
recommended in this manual could result in exposure
to electrical, mechanical or other potential safety
hazards. Always refer to the safety warnings provided
throughout this manual concerning these procedures.
When possible, disconnect all electrical power
including remote disconnect and discharge all energy
storing devices such as capacitors before servicing.
Follow proper lockout/tagout procedures to ensure the
power can not be inadvertently energized. When
necessary to work with live electrical components,
have a qualified licensed electrician or other individual
who has been trained in handling live electrical
components perform these tasks. Failure to follow all of
the recommended safety warnings provided, could
result in death or serious injury.
WARN ING
Overheating or Flooding Could Cause Fire
or Explosion!
Overheating or flooding (where any part of the unit
heater has been under water) could result in fire or
explosion. Should overheating occur, or the gas supply
fails to shut off, shut off the manual gas valve to the
unit heater before shutting off the electrical supply. Do
not use the unit heater if any part has been under
water. Immediately call a qualified service technician to
inspect the unit heater and replace any gas control
which has been underwater. Failure to follow these
recommendations could result in death or serious
injury.
Warnings, Cautions and Notices
WARNING
Hazardous Gases and Flammable
Vapors!
Exposure to hazardous gases from fuel substances
have been shown to cause cancer, birth defects or
other reproductive harm. Improper installation,
adjustment, alteration, service or use of this product
could cause flammable mixtures. To avoid hazardous
gases and flammable vapors follow proper
installation and set up of this product and all
warnings as provided in this manual. Failure to follow
all instructions could result in death or serious injury.
GTND-SVX01B-EN 3
Trademarks
Trane and the Trane logo are trademarks of Trane in the
United States and other countries.
Introduction
WARN ING
Safety Alert!
You MUST follow all recommendations below. Failure
to do so could result in death or serious injury.
For Your Safety
The use and storage of gasoline or other flammable
vapors and liquids in open containers in the vicinity
of this appliance is hazardous.
If you smell gas:
1. Do not try to light any appliance.
2. Do not touch electrical switches; do not use any
phone in your building.
3. Immediately call your gas supplier from a
neighbor
instructions.
4. If you cannot reach your
fire department.
Approved For Use in California
’s phone. Follow the gas supplier’s
gas supplier, call your
WARN ING
Toxic Hazard!
Install, operate and maintain unit in accordance with
manufacturer’s instructions to avoid exposure to fuel
substances or substances from incomplete combustion
which could result in death or serious illness. The state
of California has determined that these substances may
cause cancer, birth defects, or other reproductive harm.
Installer’s Responsibility
Installer Please Note: This equipment has been test fired
and inspected. It has been shipped free from defects from
our factory. However, during shipment and installation,
problems such as loose wires, leaks, or loose fasteners
may occur. It is the installer’s responsibility to inspect and
correct any problems that may be found.
Receiving Instructions
Inspect shipment immediately when received to
determine if any damage has occurred to the unit during
shipment. After the unit has been uncrated, check for any
visible damage to the unit. If any damage is found, the
consignee should sign the bill of lading indicating such
damage and immediately file claim for damage with the
transportation company.
Important: It is the equipment owner’s responsibility to
provide any scaffolding or other apparatus
required to perform emergency service or
annual/periodic maintenance to this
equipment.
4 GTND-SVX01B-EN
Table of Contents
Warnings, Cautions and Notices . . . . . . . . . . 2
Model Number Descriptions . . . . . . . . . . . . . . 6
Indoor Gas Heating Units . . . . . . . . . . . . . . . 6
General Information . . . . . . . . . . . . . . . . . . . . . 7
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
General Safety Information . . . . . . . . . . . . . 7
Identification of Parts . . . . . . . . . . . . . . . . . . 8
Unit Dimensions and Weights . . . . . . . . . . . 12
Installation: Mechanical . . . . . . . . . . . . . . . . . 16
Air Distribution . . . . . . . . . . . . . . . . . . . . . 16
Clearances . . . . . . . . . . . . . . . . . . . . . . . . . 17
Nozzle Assembly . . . . . . . . . . . . . . . . . . . 19
Installation: Piping . . . . . . . . . . . . . . . . . . . . . . 21
Gas Supply Piping . . . . . . . . . . . . . . . . . . . . 21
Pipe Sizing . . . . . . . . . . . . . . . . . . . . . . . . 21
Pipe Installation . . . . . . . . . . . . . . . . . . . . . . 22
Installation: Venting . . . . . . . . . . . . . . . . . . . 23
Standard Combustion . . . . . . . . . . . . . . . 25
All Unit Sizes: Vertically Vented Unit Heaters
(Category I) . . . . . . . . . . . . . . . . . . . . . . . . 25
All Unit Sizes: Horizontally Vented Unit Heat-
ers (Category III) . . . . . . . . . . . . . . . . . . . . 26
Unit Sizes 30–120 Only: Vertically Vented Unit
Heaters (Category III) . . . . . . . . . . . . . . . . 28
Separated Combustion . . . . . . . . . . . . . . 32
Unit Sizes 30–120 Only: Category III . . . . 32
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . .46
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . .50
Installation: Electrical . . . . . . . . . . . . . . . . . . . 37
Electrical Connections . . . . . . . . . . . . . . . . . 37
Thermostat Wiring and Location . . . . . . 37
Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
All Unit Sizes: Operation . . . . . . . . . . . . . . . 39
Power Vented Propeller Units—Direct Spark
Ignition . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Gas Equipment Start-Up . . . . . . . . . . . . . . . 43
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Periodic Service . . . . . . . . . . . . . . . . . . . . 44
How to Order Replacement Parts . . . . . . 45
GTND-SVX01B-EN 5
Model Number Descriptions
Indoor Gas Heating Units
Note: All units are AGA approved. For
CGA approved units, contact Air
Handling Product Support.
Digit 1 — Gas Heating
Equipment
G = Gas Heating Equipment
Digit 2 — Product Type
T = Tubular Heat Exchanger -
Propeller Type
Digit 3 — Fuel
N= Natural Gas
P=LP Gas (Propane)
Digit 4 — Development
Sequence
D = Fourth Generation
Digits 5, 6, 7 — Input Capacity
Single Furnace
003 = 30 MBh 015 = 150 MBh
004 = 45 MBh 017 = 175 MBh
006 = 60 MBh 020 = 200 MBh
007 = 75 MBh 022 = 225 MBh
009 = 90 MBh 025 = 250 MBh
011 = 105 MBh 030 = 300 MBh
120 = 120 MBh 035 = 350 MBh
040 = 400 MBh
Digit 8 — Main Power Supply
A = 115/60/1 D = 230/60/3
B = 230/60/1 E = 460/60/3
C = 208/60/3 F = 575/60/3
Digit 11 — Heat Exchanger
Material
1 = Aluminized Steel
2 = #409 Stainless Steel
3 = #321 Stainless Steel
Digit 12 — Rooftop
Arrangements
0 = None (Indoor Unit)
Digit 13 — Rooftop Heating Unit
Motor Selection
0 = None (Indoor Unit and Rooftop
Duct Furnace)
Digit 14 — Rooftop Fan Section
0 = None (Indoor Unit and Rooftop
Duct Furnace)
Digit 15 — Miscellaneous
Options
0=None
B = Orifices For Elevation Above
2000 Feet (Specify Elevation)
J = Totally Enclosed Motor
7 = OSHA Fan Guard
Digit 9 — Gas Control Option
D = Single-Stage, Intermittent Pilot
Ignition
E = Two-Stage, Intermittent Pilot
Ignition
H = Electronic Modulating with
Room
T-Stat, Intermittent Pilot Ignition
J = Electronic Modulating with
Duct-Stat, Intermittent Pilot
Ignition
L = Electronic Modulating with
External 4–20 mA Input
N = Electronic Modulating with
External 0–10 Vdc Input
T = Single Stage Direct Spark
Ignition
V = Two-Stage, Direct Spark Ignition
Digit 10 — Design Sequence
G = Seventh Design
6 GTND-SVX01B-EN
General Information
Description
The Tubular Gas-Fired Unit Heater is a factory assembled,
power vented, low static pressure type propeller fan unit
heater designed to be suspended within the space to be
heated. THESE HEATERS ARE NOT TO BE CONNECTED TO
Figure 1. Tubular Propeller Unit Heaters
DUCTWORK. The designs are certified by ETL as providing
a minimum of 80 percent thermal efficiency, and approved
for use in California. Do not alter these units in any
way. If you have any questions after reading this manual,
contact the manufacturer.
Front view (Unit size 150) Rear view (Unit size 150)
General Safety Information
Important: This product must be installed by a licensed
plumber or gas fitter when installed within
the Commonwealth of Massachusetts.
Safety Alert!
You MUST follow all recommendations below. Failure
to do so could result in death or serious injury.
• Installation must be made in accordance with
local codes, or in absence of local codes with the
latest edition of ANSI Standard Z223.1 (N.F.P.A.
No. 54) National Fuel Gas Code.
All of the ANSI and NFPA Standards referred to
hese installation instructions are those that
in t
were applicable at the time the design of this
appliance was certified. The ANSI Standards are
available from the CSA Information Services,
1-800-463-6727. The NFPA Standards are
available from the National Fire Protection
Association, Batterymarch Park, Quincy, MA
02269.
Unit sizes 150–400: These units are designed for
use in airplane hangars when installed in
See “Identification of Parts,” p. 8 for unit components.
accordance with ANSI/NFPA No. 409, and in
public garages when installed in accordance
with NFPA No. 88A and NFPA No. 88B.
Unit sizes 30–120: If installed in Canada, the
installation must conform with local building
codes, or in absence of local building codes,
WARNING
with CAN/CanGa-B149.1 “Installation Codes for
Natural Gas Burning Appliances and
Equipment” or CAN/CanGa-B149.2 “Installation
Codes for Propane Gas Burning Appliances and
Equipment”. These unit heaters have been
designed and certified to comply with CSA 2.6.
Unit sizes 150–400: If installed in Canada, the
installation must conform with local building
codes, or in absence of local building codes,
with CSA-B149.1 “Installation Codes for Natural
Gas Burning Appliances and Equipment” or
CSA-B149.2 “Installation Codes for Propane Gas
Burning Appliances and Equipment”. These unit
heaters have been designed and certified to
comply with CSA 2.6. Also see sections on
installation in “Aircraft Hangers,” p. 16 and
“Public Garages,” p. 16.
• Do not alter the unit heater in any way or damage
to the uni
could occur!
t and/or severe personal injury or death
GTND-SVX01B-EN 7
General Information
D4430
Fan Guard
Fan Blade
Hardware
Hardware
Motor
• Turn off the gas supply and disconnect all
electric power, including remote disconnects
before servicing unit. Follow proper lockout/
tagout procedures to ensure the power can not
be inadvertently energized and the gas can not
be inadvertently turned on. Failure to turn off
gas or disconnect power before servicing could
result in death or serious injury.
• Follow installation instructions CAREFULLY to
void creating unsafe conditions. All wiring
a
should be done and checked by a qualified
electrician, using copper wire only.
• All gas connections shoul
d be made and leaktested by a suitably qualified individual, per
instructions in this manual. Also follow
procedures listed in “Gas Equipment Start-Up,”
p. 43.
• Use only the fuel for which the unit heater is
gned (see rating plate). Using LP gas in a
desi
heater that requires natural gas, or vice versa,
will create the risk of gas leaks, carbon
monoxide poisoning and explosion.
Important: Do not attempt to convert the heater
or use with a fuel other than the one
f
intended. Such conversion is
dangerous, as it could create the risks
listed previously.
• Make certain that the power source conforms to
he electrical requirements of the heater.
t
• All field-installed wiring must be completed by
ualified personnel. All field-installed wiring
q
must comply with NEC and applicable local
codes. Failure to follow this instruction could
result in death or serious injuries.
• Special attention must be given to any
ounding information pertaining to this heater.
gr
To prevent the risk of electrocution, the heater
must be securely and adequately grounded. This
should be accomplished by connecting a
grounded conductor between the service panel
and the heater. To ensure a proper ground, the
grounding means must be tested by a qualified
electrician.
• Do not insert fingers or foreign objects into the
heater or its air mo
ving device. Do not block or
tamper with the heater in any manner while in
operation or just after it has been turned off, as
some parts may be hot enough to cause injury.
• This heater is intended f
or general heating
applications ONLY. It must NOT be used in
potentially dangerous locations such as
flammable, explosive, chemical-laden or wet
atmospheres.
• Do not attach ductwork to this product or use it
makeup air heater. Such usage voids the
as a
warranty and will create unsafe operation.
• In cases in which property damage may result
om malfunction of the heater, a backup system
fr
or a temperature sensitive alarm should be used.
• Should overheating occur, or the gas supply fail
to shut of
f, shut off the manual gas valve to the
heater before shutting off the electrical supply.
• The open end of piping system
s being purged
must not discharge into areas where there are
sources of ignition or into confined spaces
UNLESS precautions are taken as follows: 1) by
ventilation of the space, 2) control of purging
rate, 3) elimination of all hazardous conditions.
All precautions must be taken to perform this
operation in a safe manner.
• When connecting to existing gas lines be
sure to
valve off the gas supply ahead of connection
point. To avoid explosion or possible fire, always
purge all residual gas from piping before cutting
into existing line or removing threaded fittings.
Failure to remove all gas vapors could result in
death or serious injury or equipment or propertyonly-damage.
Unless otherwise specified, the following conversions
may be used for calculating SI unit measurements:
1 foot = 0.305 m 1 inch water column = 0.249 kPa
1 inch = 25.4 mm 1 meter/second = FPM ÷ 196.8
1 psig = 6.894 kPa 1 liter/second = CFM x 0.472
1 pound = 0.453 kg 1000 Btu per hour = 0.293 kW
1 gallon = 3.785 L 1000 Btu/Cu. Ft. = 37.5 MJ/m
1 cubic foot = 0.028 m
3
3
Identification of Parts
Figure 2. All unit sizes: Propeller parts
Note: With unit sizes 30 and 45, no rubber grommets are supplied.
8 GTND-SVX01B-EN
Figure 3. Unit sizes 30–120: Unit parts
General Information
#Description
1. Vestible Panel/Tube Assembly
(Heat Exchanger)
2. Bracket/Gas Train
3. Manifold
4. Burner Assembly
5. Standard Orifice
Natural Gas or Propane (LP) Gas
6. Spark Ignitor
7. Flame Sensor
8. Gas Valve
Natural or Propane (LP) Gas
9. Manual Rollout Safety Switch
10. Transformer, 50 VA, 115/24
11. Air Pressure Switch
12. Terminal Block Plate
13. High Limit Switch
14. Fan Motor
15. OSHA Fan Guard
16. Standard Fan
17. Fan/Guard/Motor Mount Hardware Kit
18. Flue Collector
19. Power Venter (Drafter) Assembly
20. Flue Collar Assembly
21. Vinyl Tubing (Pressure Switch)
22. Power Venter Mounting Plate
23. Louver
24. Louver Spring
25. Control Board
26. Access Panel
27. Top Jacket Panel w/Insulation
28. Bottom Jacket Panel w/Insulation
29. Front Jacket Panel
30. Rear Jacket Panel
31. Bracket, Manifold
32. Tube Support Bracket
33. Green Ground Screw
34. Hanger Bracket
35. Manifold Clamp
36. Pipe Nipple
37. Left Side Panel
38. Manifold Support Bracket Kit
39. Spring
40. Grommet
41. Inlet Screen Assembly
42. Burner Box View Port
(b)
(a)
(a)The orifice shown are for units operating at normal altitudes of 0 to 2000 ft (610 m).
(b)When replacing a flue collector, make sure that the flue collector box is sealed completely with factory supplied gasket.
GTND-SVX01B-EN 9
General Information
D03
Figure 4. Unit sizes 30–120: Component parts
Pressure switch Gas valve
Figure 5. Unit sizes 30–120: Internal furnace
components
Figure 6. Unit sizes 30–120: Power venter assembly
Figure 7. Unit sizes 150–400: Component parts
10 GTND-SVX01B-EN
General Information
Figure 8. Unit sizes 150–400: Heat exchanger
assembly
Figure 9. Unit sizes 150–400: Electrical control panel
Figure 10. Unit sizes 150–250: Power venter assembly
Figure 11. Unit sizes 300–400: Power venter assembly
Figure 12. Unit sizes 150–400: Turbulator/High limit
location
GTND-SVX01B-EN 11
Unit Dimensions and Weights
Ta b le 1. Unit sizes 30–120: Performance and specification data
Unit Size 30 45 60 75 90 105 120
PERFORMANCE DATA
Input Btu/h 30,000 45,000 60,000 75,000 90,000 105,000 120,000
(kW) (8.8) (13.2) (17.6) (22.0) (26.4) (30.8) (35.2)
Output Btu/h 24,900 37,350 49,800 61,500 73,800 86,100 98,400
(kW) (7.2) (10.9) (14.5) (18.0) (21.6) (25.2) (28.8)
Thermal Efficiency %83838382828282
Free Air Delivery CFM cfm 370 550 740 920 1,100 1,300 1,475
(m
Air Temperature Rise °F 60 60 60 60 60 60 60
(°C) (15) (15) (15) (15) (15) (15) (15)
Full Load Amps at 115V 3.0 3.0 4.1 4.1 6.4 6.4 6.4
Maximum Circuit Ampacity 3.5 3.5 4.8 4.8 7.5 7.5 7.5
MOTOR DATA:
Motor hp 1/20 1/20 1/12 1/12 1/10 1/10 1/10
Type SP SP SP SP SP SP SP
RPM 1650165010501050105010501050
Amps @ 115V 1.9 1.9 2.6 2.6 4.2 4.2 4.2
DIMENSIONAL DATA
“A” Jacket Height in. 12-3/8 12-3/815-7/815-7/822-5/822-5/822-5/8
“B” Overall Height in. 13-1/4 13-1/4 16-13/16 16-13/16 23-9/16 23-9/16 23-9/16
“C” Overall Depth in. 25-7/8 25-7/8 26-3/16 26-3/16 26-3/8 26-3/8 26-3/8
“D1” Center Line Height of Flue
“D2” Center Line Height of Air Intake in. 8-1/2 8-1/2 8 8 8-5/8 8-5/8 8-5/8
“E” Fan Diameter in.10101414161616
“F” Discharge Opening Height in. 10-13/16 10-13/16 14-7/16 14-7/16 21-3/16 21-3/16 21-3/16
“G” Vent Connection Diameter in. 4 4 4 4 4 4 4
“H1” Center Line of Flue Connection From Side in. 7-1/4 7-1/4 7-1/4 7-1/4 7-3/4 7-3/4 7-3/4
“H2” Center Line of Air Intake From Side in. 2-3/4 2-3/4 2-3/4 2-3/4 3-1/2 3-1/2 3-1/2
Vent Size Requirements - Standard Combustion
Category I Horizontal
Category III Horizontal in.4444444
Category I & III Vertical in.4444444
Vent Size Requirements - Separated Combustion
Exhaust Diameter** in.4444555
Intake Air Diameter in.4444555
Unit Weight lb 60 65 80 85 95 105 110
Shipping Weight lb 70 75 90 95 110 115 120
(a) Ratings shown are for unit installations at elevations between 0 and 2000 ft. (610 m). For unit installations in USA above 2000 ft. (610 m), the unit
input must be derated 4% for each 1000 ft. (305 m) above sea level; refer to local codes, or in absence of local codes, refer to the latest edition of the
National Gas Code, ANSI Standard Z223.1 (N.F.P.A. No. 54). Also refer to Table 10, p. 42.
For installations in Canada, any reference to deration at altitudes in excess of 2000 ft. (610 m) are to be ignored. At altitudes of 2000 to 4500 ft. (610
to 1372 m), the unit must be derated to 90% of the normal altitude rating, and be so marked in accordance with the ETL certification.
(b)For all installations, the flue collar is included with the unit and should be field-installed per the instructions included with the unit.
(c) 4”–5” reducer supplied where required.
(a)
3
/s) (0.175) (0.260) (0.349) (0.434) (0.519) (0.614) (0.696)
(kW) (0.04) (0.04) (0.06) (0.06) (0.075) (0.075) (0.075)
(mm) (314) (314) (403) (403) (574) (574) (574)
(mm) (337) (337) (427) (427) (598) (598) (598)
(b)
(c)
(mm) (632) (632) (665) (665) (670) (670) (670)
in. 8-1/2 8-1/2 10-3/8 10-3/8 13-5/8 13-5/8 13-5/8
(mm) (216) (216) (263) (263) (346) (346) (346)
(mm) (216) (216) (203) (203) (219) (219) (219)
(mm) (254) (254) (356) (356) (406) (406) (406)
(mm) (275) (275) (367) (367) (538) (538) (538)
(mm) (102) (102) (102) (102) (102) (102) (102)
(mm) (184) (184) (184) (184) (197) (197) (197)
(mm) (70) (70) (70) (70) (89) (89) (89)
in.4445555
(mm) (102) (102) (102) (127) (127) (127) (127)
(mm) (102) (102) (102) (102) (102) (102) (102)
(mm) (102) (102) (102) (102) (102) (102) (102)
(mm) (102) (102) (102) (102) (127) (127) (127)
(mm) (102) (102) (102) (102) (127) (127) (127)
(kg) (27) (29) (36) (39) (43) (48) (50)
(kg) (32) (34) (41) (43) (50) (52) (54)
12 GTND-SVX01B-EN
Figure 13. Unit sizes 30–120: Dimensions, standard units
Unit Dimensions and Weights
GTND-SVX01B-EN 13
Unit Dimensions and Weights
Table 2. Unit sizes 150–400: Performance and specification data
Unit Size 150 175 200 250 300 350 400
PERFORMANCE DATA
Input Btu/h 150,000 175,000 200,000 250,000 300,000 350,000 400,000
(kW) (43.9) (51.2) (58.6) (73.2) (87.8) (102.5) (117.1)
Output Btu/h 124,500 145,250 166,000 207,500 249,000 290,500 332,000
(kW) (36.4) (42.5) (48.6) (60.7) (72.9) (85.1) (97.2)
Thermal Efficiency %83838383838383
Free Air Delivery CFM cfm 2,400 2,850 3,200 3,450 5,000 5,600 5,800
(m
Air Temperature Rise °F 47 46 47 54 45 47 51
(°C) (26) (26) (26) (30) (24) (26) (28)
Full Load Amps at 115V 5.8 8.0 8.0 8.0 11.3 13.5 13.5
MOTOR DATA:
Motor hp 1/4 1/3 1/3 1/3 1/4 (2) 1/3 (2) 1/3 (2)
Type PSC PSC PSC PSC PSC PSC PSC
RPM 1,140 1,140 1,140 1,140 1,140 1,140 1,140
Amps @ 115V 4.7 5.8 5.8 5.8 9.4 11.6 11.6
DIMENSIONAL DATA
“A” Overall Height to Top of Flue in. 33-3/4 33-3/4 33-3/4 33-3/4 34 34 34
“B” Jacket Width of Unit in. 20-3/4 32-3/4 32-3/4 32-3/4 50-3/4 50-3/4 50-3/4
“C” Width to Centerline Flue in. 13-3/8 19-3/8 19-3/8 19-3/8 28-3/8 28-3/8 28-3/8
“D” Depth to Rear of Housing in. 11 11 11 11 12-1/4 12-1/4 12-1/4
“E” Hanging Distance Width in. 18-5/8 30-5/8 30-5/8 30-5/8 48-5/8 48-5/8 48-5/8
“F” Discharge Opening Width in. 18-3/4 30-3/4 30-3/4 30-3/4 48-3/4 48-3/4 48-3/4
“G” Depth to Centerline Flue in. 4-3/4 4-3/4 4-3/4 4-3/4 5-1/8 5-1/8 5-1/8
“H” Discharge Opening Height in. 24-1/2 24-1/2 24-1/2 24-1/2 24-1/2 24-1/2 24-1/2
“L” Overall Unit Width in. 25-1/4 37-1/4 37-1/4 37-1/4 55-1/4 55-1/4 55-1/4
Flue Size Diameter
Fan Diameter in. (Qty)1618181816 (2)18 (2)18 (2)
Gas Inlet-Natural Gas in.1/21/21/23/43/43/43/4
Gas Inlet-LP Gas in. 1/2 1/2 1/2
Approx. Unit Weight lb 155 191 201 211 307 321 335
Approx. Ship Weight lb 195 241 251 261 367 381 395
(a) Ratings shown are for unit installations at elevations between 0 and 2000 ft. (610 m). For unit installations in USA above 2000 ft. (610 m), the unit
input must be derated 4% for each 1000 ft. (305 m) above sea leve l; refer to local cod es, or in absence of local codes, refe r t o the latest edition of the
National Gas Code, ANSI Standard Z223.1 (N.F.P.A. No. 54).
For installations in Canada, any reference to deration at altitudes in excess of 2,000 ft. (610 m) are to be ignored. At altitudes of 2,000 ft. to 4,500 ft.
(610 m to 1372 m), the unit must be derated to 90% of the normal altitude rating, and be so marked in accordance with the ETL certification.
(b)Flue collar is factory-supplied with unit; to be field-installed per included instructions.
(a)
3
/s) (1.133) (1.346) (1.511) (1.629) (2.361) (2.644) (2.738)
(kW) (0.19) (0.25) (0.25) (0.25) (0.19) (0.25) (0.25)
(mm) (857) (857) (857) (857) (864) (864) (864)
(mm) (527) (831) (831) (831) (1289) (1289) (1289)
(mm) (340) (492) (492) (492) (721) (721) (721)
(mm) (279) (279) (279) (279) (311) (311) (311)
(mm) (473) (778) (778) (778) (1235) (1235) (1235)
(mm) (476) (781) (781) (781) (1238) (1238) (1238)
(mm) (121) (121) (121) (121) (130) (130) (130)
(mm) (622) (622) (622) (622) (622) (622) (622)
(b)
(mm) (641) (946) (946) (946) (1403) (1403) (1403)
in.5555666
(mm) (127) (127) (127) (127) (152) (152) (152)
1/2 or 3/4
(kg) (70) (87) (91) (96) (139) (145) (152)
(kg) (88) (109) (114) (118) (166) (173) (179)
14 GTND-SVX01B-EN
Figure 14. Unit sizes 150–400: Dimensions, standard units
C
E
(Hanging)
1-3/8"
(35)
(Hanging)
G
D
32-1/2"
(826)
11-5/8"
(295)
(Hanging)
H
(Discharge
Opening)
33"
A
B
L
F
(Discharge Opening)
1" (25)
Electrical Control Panel
Gas Valve
D4617
Rear View Side View Front View
Flue *
Unit Dimensions and Weights
GTND-SVX01B-EN 15
Installation: Mechanical
NOTICE:
Equipment Damage!
Do not install unit heaters in corrosive or flammable
atmospheres! Premature failure of, or severe damage to
the unit could result! Avoid locations where extreme
drafts can affect burner operation. Unit heaters must
not be installed in locations where air for combustion
would contain chlorinated, halogenated or acidic
vapors. If located in such an environment, premature
failure of the unit could occur!
Since the unit is equipped with an automatic gas ignition
system, the unit heaters must be installed such that the gas
ignition control system is not directly exposed to water
spray, rain, or dripping water.
Additional Requirement for Canadian
Installations
Refer to specification table and installation manual for
proper usage.
The following instructions apply to Canadian installations
in addition to installation and operating instructions:
1. Installation must conform with local building codes, or
in the absence of local codes, with current CSA B149.1,
“Installation Codes for Natural Gas Burning
Appliances and Equipment”, or CSA B149.2,
“Installation Codes for Propane Gas Burning
Appliances and Equipment”.
2. Any reference to U. S. standards or codes in these
instructions are to be ignored, and the applicable
Canadian standards or codes applied.
Note: Location of unit heaters is related directly to the
selection of sizes. Basic rules are as follows:
Mounting Height. Mounting height varies by unit size:
Unit sizes 30–120: If the unit heater is installed in a garage,
it must be installed with a minimum clearance above the
floor of 18 inches (457 mm).
Unit sizes 150–400: Unit heaters equipped with standard
fan guards must be installed at a minimum of 8 feet (2.4 m)
above the floor, measured to the bottom of the unit. At
heights above 8 feet (2.4 m), less efficient air distribution
will result. If a unit is to be mounted below 8 feet (2.4 m)
from the floor, an OSHA approved fan guard is required on
the unit.
Canada, installation is suitable in aircraft hangars when
acceptable to the enforcing authorities.
Public Garages. Unit sizes 150–400: In repair garages,
unit heaters must be located at least 8 feet (2.4 m) above
the floor. Refer to the latest edition of NFPA 88B, Repair
Garages.
In parking structures, unit heaters must be installed so that
the burner flames are located a minimum of 18 inches
(457 mm) above the floor or protected by a partition not
less than 18 inches (457 mm) high. However, any unit
heater mounted in a parking structure less than 8 feet
(2.4 m) above the floor must be equipped with an OSHA
approved fan guard. Refer to the latest edition of
NFPA 88A, Parking Structures.
In Canada, installation must be in accordance with the
latest edition of CSA-B149 “Installation Codes for Gas
Burning Appliances and Equipment.”
Air Distribution
Direct air towards areas of maximum heat loss. When
multiple heaters are involved, circulation of air around the
perimeter is recommended where heated air flows along
exposed walls. Satisfactory results can also be obtained
where multiple heaters are located toward the center of
the area with heated air directed toward the outside walls.
Be careful to avoid all obstacles and obstructions which
could impede the warm air distribution patterns.
NOTICE:
Maintain Minimum Thermostat Setting!
Unit heaters should not be installed to maintain low
temperatures and/or freeze protection of buildings. A
minimum of 50°F (10°C) thermostat setting must be
maintained. If unit heaters are operated to maintain
lower than 50°F (10°C), hot flue gases are cooled inside
the heat exchanger to a point where water vapor (a flue
gas by-product) condenses onto the heat exchanger
walls. The result is a mildly corrosive acid that
prematurely corrodes the aluminized heat exchanger
and can actually drip water down from the unit heater
onto the floor surface. Additional unit heaters should
be installed if a minimum 50°F (10°C) thermostat
setting cannot be maintained. Failure to follow these
recommendations could result in equipment or
property damage.
Aircraft Hangers. Unit sizes 150–400: Unit heaters must
be installed in aircraft hangars as follows: in aircraft
hangars, unit heaters must be at least 10 feet (3.0 m) above
the upper surface of wings or engine enclosures of the
highest aircraft to be stored in the hangar, and 8 feet
(2.4 m) above the floor in shops, offices and other sections
of the hangar where aircraft are not stored or housed.
Refer to current ANSI/NFPA No. 409, Aircraft Hangars. In
16 GTND-SVX01B-EN
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