Trane Gas Unit Heaters Installation And Maintenance Manual GBNE SVX001A EN 11/05/2013 Tubular Fired Blower Style Heater / Installation, Operation
2015-04-02
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Installation, Operation
and Maintenance
Tubular Gas Fired Blower Style
Unit Heater
Model: GBNE
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.
November 2013
GBNE-SVX001A-EN
J30-09409
Table of Contents
Description............................................................................ 3
Model Number Description..................................................4
General Safety Information..................................................5
Installation..............................................................................7
Installation Continued
Gas Piping..................................................................10
Installation Continued
Pipe Installation.........................................................11
Blower Set Up and Adjustment..........................................12
Motor and Pulley.................................................................13
Electrical Connections.........................................................14
Venting..................................................................................19
Vertically Vented Unit Heaters
(Category I).................................................................19
Horizontally Vented Unit Heaters
(Category III)...............................................................20
Operation
Power Vented Propeller Units Direct Spark Ignition....24
Operation
Primary Shutter Adjustment.....................................25
Gas Input Rate......................................................................25
Tubular Propeller Troubleshooting Guide.........................23
Tubular Propeller Troubleshooting Guide with
LED Indicator Assistance.....................................................26
Maintenance.........................................................................30
Limited Warranty.................................................................31
Identification of Parts Propeller Unit Heaters....................32
Gas Equipment Start-Up.....................................................34
2
GBNE-SVX001A-EN
Description
NOTICE: It is the equipment owners responsibility to provide any scaffolding or other apparatus required to perform
emergency service or annual/periodic maintenance to this equipment.
The Power Vented Gas Fired Blower Unit Heaters are factory assembled, high static pressure type, centrifugal blower units
designed for heavy duty applications such as continuous operation or where a single unit heater must do the entire heating
job in a large area. These blower type unit heaters may be used with the standard adjustable louvers, with short duct runs
or discharge nozzles for spot heating. These blower type unit heaters may be used where low sound levels are required. The
designs are certified by ETL as providing a minimum of 83% 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.
Figure 1 - Tubular Blower Unit Heater
See Identification of Parts, Figures 12 through 18.
The following terms are used throughout this manual, in addition to the ETL requirements to bring attention to the presence
of potential hazards, or to important information concerning the product:
WARNING
Indicates an imminently hazardous situation which, if not
avoided, could result in death, serious injury, or substantial
property damage.
CAUTION
Indicates an imminently hazardous situation which, if not
avoided, may result in minor injury, or property damage.
NOTICE: Used to notify of special instructions on
installation, operation, or maintenance which are
important to equipment but not related to personal
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.
FOR YOUR SAFETY: If you smell gas:
1. Open windows.
2. Don't touch electrical switches.
3. Extinguish any open flame.
4. Immediately contact your gas supplier.
GBNE-SVX001A-EN
WARNING: Improper installation, adjustment, alteration,
service or maintenance can cause property damage, injury,
or death. Read the installation, operating, and maintenance
instructions thoroughly before installing or servicing this
equipment.
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,
shipment and installation problems such as loose wires,
leaks, and loose fasteners may occur. It is the installer's
responsibility to inspect and correct any problem 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.
WARNING: Install, operate, and maintain unit in accordance
with the manufacturer's instructions to avoid exposure to
fuel substances, or substances from incomplete combustion,
which can cause death or serious illness. The state of
California has determined that these substances may cause
cancer, birth defects, or other reproductive harm.
3
Model Number Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
G
B
N
E
0
2
0
A
T
A
1
0
0
0
J
Digit 1 - Gas Heating Equipment
G - Gas Heating Equipment
Digit 2 - Product Type
B - Tubular Blower
Digit 3 - Fuel Type
N - Natural Gas
P - Propane Gas (LP)
Digit 4
E - Development Sequence
Digits 5,6,7 - Input Capacity
010 - 100 MBh
012 - 125 MBh
015 - 150 MBh
017 - 175 MBh
020 - 200 MBh
025 - 250 MBh
030 - 300 MBh
035 - 350 MBh
040 - 400 MBh
Digit 8 - Main Power Supply
A - 115/60/1
B - 230/60/1
C - 208/60/3
D - 230/60/3
E - 460/60/3
F - 575/60/3
G - 208/60/1
4
Digit 9 - Gas Control Option
H - Electronic Modulating w/Room Sensing
J - Electronic Modulating w/Duct Sensing
L - Electronic Modulation w/external 4-20mA input
N - Electronic Modulation w/external 0-10VDC input
T - Single Stage, Direct Spark Ignition
V - Two Stage, Direct Spark Ignition
W - Electronic Modulation w/Duct Sensing & Room Override Stat
Digit 10 - Design Sequence
A - First design
Digit 11 - Heat Exchanger Material
1 - Standard (Aluminized Steel)
2 - 409 Stainless Steel
Digits 12,13,14
0
Digit 15 - Miscellaneous
0 - None
A - Stainless Steel Burner
B - Air Pressure Switch for Above 5000 Feet
C - 409 Stainless Steel Flue Collector
D - With Summer/Winter Switch
E - Vertical Louvers
J - Totally Enclosed Motor
H - Duct Discharge Flange
3 - Premium Efficiency, Open Drip Proof
4 - Premium Efficiency, Totally Enclosed
GBNE-SVX001A-EN
General Safety Information
WARNING
Failure to comply with general safety information may result in
extensive property damage, severe personal injury, or death.
WARNING
This product must be installed by a licensed plumber or gas fitter when installed within the Commonwealth of Massachusetts.
Installation must be made in accordance with local codes,
or in absence of local codes, with the latest edition of the
ANSI Standard Z223.1 (N.F.P.A. No. 54) National Fuel Gas
Code. All of the ANSI and NFPA Standards referred to in
these installation instructions are those that were applicable
at the time the design of this appliance was certified. The
ANSI Standards are available from CSA Information Services,
1-800-463-6727. The NFPA Standards are available from the
National Fire Protection Association, Batterymarch Park,
Quincy, MA 02269. These unit heaters are designed for
use in airplane hangars when installed in accordance with
ANSI/NFPA No. 409, and in public garages when installed in
accordance with NFPA No. 88A and NFPA No.88B.
If installed in Canada, the installation must conform with local
building codes, or in the 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 HANGARS and PUBLIC GARAGES.
WARNING
Do not alter the unit heater in any way or damage to the unit
and/or severe personal injury or death may occur!
WARNING
Do not attempt to convert the heater for use with a fuel other
than the one intended. Such conversion is dangerous, as it will
create the risks previously listed.
Make certain that the power source conforms to the electrical
requirements of the heater.
WARNING
Do not depend upon a thermostat or other switch as sole means
of disconnecting power when installing or servicing heater.
Always disconnect power at main circuit breaker as described
above. Failure to do so could result in fatal electric shock.
Special attention must be given to any grounding information
pertaining to this heater. To prevent the risk of electrocution,
the heater must be securely and adequately grounded. This
should be accomplished by connecting a ground 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 heater or its air
moving 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 for general heating applications
ONLY. It must NOT be used in potentially dangerous locations
such as flammable, explosive, chemical-laden, or wet
atmospheres.
In cases in which property damage may result from
malfunction of the heater, a back-up system or temperature
sensitive alarm should be used.
WARNING
CAUTION
Disconnect all power and gas supplies before installing or servicing the heater. If the power disconnect is out of sight, lock it
in the open position and tag it to prevent unexpected application of power. Failure to do so could result in fatal electric shock,
or severe personal injury.
The open end of piping systems being purged shall 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 the purging rate, (3)
elimination of all hazardous conditions. All precautions must be
taken to perform this operation in a safe manner!
CAUTION
Ensure that all power sources conform to the requirements of
the unit heater, or damage to the unit will result!
Follow installation instructions CAREFULLY to avoid creating
unsafe conditions. All wiring should be done and checked
by a qualified electrician, using copper wire only. All gas
connections should be made and leak-tested by a suitably
qualified individual, per instructions in this manual. Also
follow procedures listed on “Gas Equipment Start-Up Sheet”
located in this manual.
Unless otherwise specified, the following conversions may
be used for calculating SI unit measurements:
1 foot = 0.305 m
1000 BTU/cu. ft. = 37.5 MJ/m3
1 inch = 25.4 mm
1000 BTU per hour = 0.293 kW
1 gallon = 3.785 L
1 inch water column = 0.249 kPa
1 pound = 0.453 kg
1 litre/second = CFM x 0.472
1 psig = 6.894 kPa
1 meter/second = FPM ÷ 196.8
1 cubic foot = 0.028m3
Use only the fuel for which the heater is designed (see rating
plate). Using LP gas in a heater that requires natural gas, or
vice versa, will create risk of gas leaks, carbon monoxide
poisoning, and explosion.
GBNE-SVX001A-EN
5
Table 1 - Performance and Dimensional Data - Tubular Blower Unit Heater
Unit Size
100 125 150 175 200 250 300 350 400
PERFORMANCE DATA†
Input - BTU/Hr.
100,000 125,000 150,000 175,000 200,000 250,000 300,000 350,000 400,000
(kW)
(29.3) (36.6) (44.0) (51.3) (58.6) (73.3) (87.9) (102.6)
(117.2)
Output - BTU/Hr.
83,000 103,750 124,500 145,250 166,000 207,500 246,000 290,500 332,000
(kW)
(24.3) (30.4) (36.5) (42.6) (48.6) (60.8) (72.1) (85.1) (97.3)
Thermal Efficiency - %
83 83 83 83 83 83 82 83 83
Free Air Delivery - CFM
1,181
1,476
1,771
2,067
2,362
2,953
3,501
4,134
4,724
(cu. m/s)
(0.557) (0.697) (0.836) (0.976) (1.115) (1.394) (1.652) (1.951) (2.230)
Air Temperature Rise - Deg. F 65 65 65 65 65 65 65 65 65
(Deg. C)
(36) (36) (36) (36) (36) (36) (36) (36) (36)
Outlet Velocity - FPM
370 463 555 395.0
451.0
564.0 422 498 570
(m/s)
(1.879) (2.351) (2.819) (2.006) (2.291) (2.864) (2.143) (2.529) (2.895)
Full Load Amps at 115V
7.3 9.4 9.4 14.2 14.2 15.6 15.6 20.8 20.8
Maximum Circuit Ampacity 8.6 11.2 11.2 17.1 17.1 18.9 18.9 25.4 25.4
MOTOR DATA: Motor HP
1/4 1/2 1/2 3/4 3/4 1 1 1-1/2
1-1/2
Motor kW
0.19
0.37
0.37
0.56
0.56
0.75
0.75
1.11
1.11
Motor Type ODP**
SPH
SPH
SPH
SPH
SPH
Cap. Start Cap. Start Cap. Start Cap. Start
RPM
1,725
1,725
1,725
1,725
1,725
1,725
1,725
1,725
1,725
Amps @ 115V
5.1
7.2
7.2
11.6
11.6
13.0
13.0
18.2
18.2
DIMENSIONAL DATA - inches (mm)
"A" Height to Top of Flue
33-3/4
33-3/4
33-3/4
33-3/4
33-3/4
33-3/4
34
34
34
(857) (857) (857) (857) (857) (857) (864) (864) (864)
"B" Jacket Width of Unit
20-3/4 20-3/4 20-3/4 32-3/4 32-3/4 32-3/4 50-3/4 50-3/4 50-3/4
(527) (527) (527) (832) (832) (832) (1289)
(1289)
(1289)
"C" Width to Centerline Flue 13-3/8 13-3/8 13-3/8 19-3/8 19-3/8 19-3/8 28-3/8 28-3/8 28-3/8
(340) (340) (340) (492) (492) (492) (721) (721) (721)
"D" Depth to Front Hanger 21 21 21 21 21 21 21 21 21
(533) (533) (533) (533) (533) (533) (533) (533) (533)
"E" Hanging Distance Width 18-5/8 18-5/8 18-5/8 30-5/8 30-5/8 30-5/8 48-5/8 48-5/8 48-5/8
(473) (473) (473) (778) (778) (778) (1235)
(1235)
(1235)
"F" Hanging Distance Depth
19 19-1/2 19-1/2 32-3/4 32-3/4 32-3/4 23-1/2 32-3/4 32-3/4
(483) (495) (495) (832) (832) (832) (597) (832) (832)
"G" Discharge Opening Width 18-3/4 18-3/4 18-3/4 30-3/4 30-3/4 30-3/4 48-3/4 48-3/4 48-3/4
(476) (476) (476) (781) (781) (781) (1238)
(1238)
(1238)
"H" Depth to Centerline Flue 4-3/4 4-3/4 4-3/4 4-3/4 4-3/4 4-3/4 5-1/8 5-1/8 5-1/8
(121) (121) (121) (121) (121) (121) (130) (130) (130)
"L" Discharge Opening Height 24-1/2 24-1/2 24-1/2 24-1/2 24-1/2 24-1/2 24-1/2 24-1/2 24-1/2
(622) (622) (622) (622) (622) (622) (622) (622) (622)
"M" Overall Unit Width
25-1/4 25-1/4 25-1/4 37-1/4 37-1/4 37-1/4 55-1/4 55-1/4 55-1/4
(641) (641) (641) (946) (946) (946) (1403)
(1403)
(1403)
"P" Overall Unit Depth
49-3/4 49-3/8 49-3/8 56-1/8 56-1/8 56-1/8 53-3/8 56-1/8 56-1/8
(1264) (1254) (1254) (1426) (1426) (1426) (1356) (1426) (1426)
*Flue Size Diameter - in
5 5 5 5 5 5 6 6 6
(mm)
(127) (127) (127) (127) (127) (127) (152) (152) (152)
Blower Size - inches (Qty)
9
10
10
12
12
12
10 (2)
12 (2)
12 (2)
Gas Inlet, Natural Gas - in 1/2 1/2 1/2 1/2 1/2 1/2 3/4 3/4 3/4
Gas Inlet, LP Gas - in
1/2 1/2 1/2 1/2 1/2 1/2 3/4 3/4 3/4
Approximate Unit Weight - lb 171 175 202 245 264 289 370 390 429
(kg)
(78) (79) (92) (111) (120) (131) (168) (177) (195)
Approximate Ship Weight - lb 256 261 289 381 400 425 520 547 595
(kg)
(116) (118) (131) (173) (181) (193) (236) (248) (270)
† Ratings shown are for unit installations at elevations between 0 and 2,000 ft (0 to 610m). For unit installations in U.S.A. above 2,000 ft. (610m), the unit input must be field derated 4% for
each 1,000 ft. (305m) above sea level; refer to local codes, or in absence of local codes, refer to the latest edition of the National Fuel 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. (610m) are to be ignored. At altitudes of 2,000 ft. to 4,500 ft. (610 to 1372m), the unit must be field
derated to 90% of the normal altitude rating, and be so marked in accordance with the ETL certification. See Table 8A for field deration information.
* Flue collar is factory supplied with unit; to be field installed per included instructions.
** LEGEND:
6
SPH = SPLIT PHASE
CAP. START = CAPACITOR START
ODP = OPEN DRIP PROOF
GBNE-SVX001A-EN
Installation
Figure 2 - Dimensional Drawing - Tubular Blower Unit Heater
1 1/8
E
32 1/2
H
F
C
M
D
Flue
B
33
A
L
(Discharge
Opening)
Electrical Control Panel
D8931B
Gas Valve
Rear View
P
Side View
G
(Discharge
Opening)
Front View
D8931B
WARNING
Do not install unit heaters in corrosive of flammable atmospheres!
Premature failure of, or severe damage to the unit will result!
WARNING
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 will occur!
Since the unit is equipped with an automatic gas ignition
system, the unit heater must be installed such that the gas
ignition control system is not directly exposed to water spray,
rain or dripping water.
NOTICE: Location of unit heaters is related directly to the
selection of sizes. Basic rules are as follows:
MOUNTING HEIGHT: Unit Heaters equipped with standard
fan guards must be installed at a minimum of 8' (2.4m) above
the floor, measured to the bottom of the unit. For mounting
heights above 8', see Table 2 to compare unit height to heat
throw distance.
In Canada, installation must be in accordance to 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. Heat
throw distances are presented in Table 2.
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 byproduct) 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 floor surface. Additional
unit heaters should be installed if a minimum 50°F (10°C)
thermostat setting cannot be maintained.
AIRCRAFT HANGARS: Unit Heaters must be installed in
aircraft hangars as follows: In aircraft hangars, unit heaters
must be at least 10' (3.0m) above the upper surface of wings
or engine enclosures of the highest aircraft to be stored in
the hangar, and 8' (2.4m) 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 Canada, installation is suitable in aircraft hangars
when acceptable to the enforcing authorities.
PUBLIC GARAGES: In repair garages, unit heaters must be
located at least 8' (2.4m) above the floor. Refer to the latest
edition of NFPA 88B, Repair Garages.
GBNE-SVX001A-EN
7
Installation (continued)
Table 2 - Heat Throw Data
Standard Heater
Degree
of
Nozzle
None
Distance From
Floor to Bottom
of Unit "H" Feet (m)
30° Nozzle
150,000
175,000
200,000
250,000
300,000
350,000
400,000
8
60
65
70
75
80
90
105
110
120
(2.4)
(18.3)
(19.8)
(21.3)
(22.9)
(24.4)
(27.4)
(32.0)
(33.5)
(36.6)
10
54
56
60
64
68
78
90
95
100
(3.0)
(16.5)
(17.1)
(18.3)
(19.5)
(20.7)
(23.8)
(27.4)
(29.0)
(30.5)
12
44
46
49
57
61
68
80
84
90
(3.7)
(13.4)
(14.0)
(14.9)
(17.4)
(18.6)
(20.7)
(24.4)
(25.6)
(27.4)
NR
NR
NR
NR
20
(6.1)
45
49
52
60
70
74
80
(13.7)
(14.9)
(15.8)
(18.3)
(21.3)
(22.6)
(24.4)
NR
NR
46
54
63
66
70
(14.0)
(16.5)
(19.2)
(20.1)
(21.3)
8
65
70
75
80
85
95
115
120
125
(2.4)
(19.8)
(21.3)
(22.9)
(24.4)
(25.9)
(29.0)
(35.1)
(36.6)
(38.1)
10
57
60
64
68
72
86
99
105
110
(3.0)
(17.4)
(18.3)
(19.5)
(20.7)
(21.9)
(26.2)
(30.2)
(32.0)
(33.5)
12
50
54
57
60
64
77
88
94
100
(3.7)
(15.2)
(16.5)
(17.4)
(18.3)
(19.5)
(23.5)
(26.8)
(28.7)
(30.5)
15
NR
(4.6)
20
NR
(6.1)
45
48
50
53
64
74
79
84
(13.7)
(14.6)
(15.2)
(16.2)
(19.5)
(22.6)
(24.1)
(25.6)
NR
NR
44
47
58
66
71
75
(13.4)
(14.3)
(17.7)
(20.1)
(21.6)
(22.9)
8
75
80
85
90
95
110
125
130
138
(2.4)
(22.9)
(24.4)
(25.9)
(27.4)
(29.0)
(33.5)
(38.1)
(39.6)
(42.1)
10
65
70
75
79
83
95
109
115
120
(3.0)
(19.8)
(21.3)
(22.9)
(24.1)
(25.3)
(29.0)
(33.2)
(35.1)
(36.6)
12
60
64
68
72
76
84
100
103
108
(3.7)
(18.3)
(19.5)
(20.7)
(21.9)
(23.2)
(25.6)
(30.5)
(31.4)
(32.9)
15
50
54
56
61
65
71
85
88
94
(4.6)
(15.2)
(16.5)
(17.1)
(18.6)
(19.8)
(21.6)
(25.9)
(26.8)
(28.7)
20
(6.1)
90°*
125,000
Approximate Distance of Heat Throw - Feet (Meters)
15
60°
90° Nozzle
UNIT SIZE BTU/Hr
100,000
(4.6)
30°
60° Nozzle
15
(4.6)
20
(6.1)
25
(7.6)
30
(9.1)
NR
30 x 25
49
52
55
59
65
77
81
85
(14.9)
(15.8)
(16.8)
(18.0)
(19.8)
(23.5)
(24.7)
(25.9)
35 x 30
40 x 35
45 x 40
50 x 40
60 x 45
70 x 45
80 x 50
100 x 50
(10.7) (9.1)
(12.2) (10.7)
(13.7) (12.2)
(15.2) (12.2)
(18.3) (13.7)
(21.3) (13.7)
(24.4) (15.2)
(30.5) (15.2)
NR
NR
NR
NR
NR
NR
NR
NR
NR
NR
NR
NR
NR
NR
(9.1)
(7.6)
40 x 35
56 x 40
65 x 40
70 x 45
80 x 45
(12.2) (10.7)
(17.1) (12.2)
(19.8) (12.2)
(21.3) (13.7)
(24.4) (13.7)
50 x 35
60 x 35
65 x 40
75 x 40
(15.2) (10.7)
(18.3) (10.7)
(19.8) (12.2)
(22.9) (12.2)
NR
55 x 35
60 x 35
65 x 40
(16.8) (10.7)
(18.3) (10.7)
(19.8) (12.2)
* It is not recommended to mount a unit with a 90° nozzle under 10 feet.
Notes: 1. All throw data figures are approximations. Allowances should be made for optimum performance, altitude, etc.
2. NR - Units not recommended at these mounting heights.
3. 30°, 60° and 90° nozzles are shipped unassembled.
8
GBNE-SVX001A-EN
Installation (continued)
AIR FOR COMBUSTION: The unit heater shall be
installed in a location in which the facilities for ventilation
permit satisfactory combustion of gas, proper venting, and
the maintenance of ambient temperature at safe limits under
normal conditions of use. The unit heater shall be located in
such a manner as not to interfere with proper circulation of
air within the confined space. When buildings are so tight
that normal infiltration does not meet air requirements,
outside air shall be introduced per Sections 1.3.4.2 and
1.3.4.3 of ANSI Z223.1 for combustion requirements. A
permanent opening or openings having a total free area of
not less than one square inch per 5,000 BTU/Hr (1.5 kW) of
total input rating of all appliances within the space shall be
provided.
WARNING
Ensure that all hardware used in the suspension of each unit heater
is more than adequate for the job. Failure to do so may result in
extensive property damage, severe personal injury, or death!
Refer to Figures 3A and 3B for suspension of units.
Figure 3A - Heater Mounting*
NOTICE: Unit Heater sizing should be based on heat loss
calculations where the unit heater output equals or exceeds
heat loss.
CLEARANCES: Each Gas Unit Heater shall be located with
respect to building construction and other equipment so
as to permit access to the Unit Heater. Clearance between
vertical walls and the vertical sides of the Unit Heater shall
be no less than 6" (152mm). To ensure access to the control
box, a minimum of 18" (457mm) is required for the control
box side. A minimum clearance of 6" (152mm) must be
maintained between the top of the Unit Heater and the
ceiling. The bottom of the Unit Heater must be no less than
12" (305mm) from any combustible. The distance between
rear of unit and vertical wall should be no less than 18"
to maintain inlet air flow. The distance between the flue
collector and any combustible must be no less than 6"
(152mm). Also see AIR FOR COMBUSTION and VENTING
sections.
D2788A
* All hanging hardware and wood is not included with the unit
(To be field supplied).
Figure 3B - Heater Suspension
NOTICE: Increasing the clearance distances may be
necessary if there is a possibility of distortion or
discoloration of adjacent materials.
WARNING
Make certain that the lifting methods used to lift the heater and
the method of suspension used in the field installation of the
heater are capable of uniformly supporting the weight of the
heater at all times. Failure to heed this warning may result in
property damage or personal injury!
WARNING
D4804
Make sure that the structure to which the unit heater is to be
mounted is capable of safely supporting its weight. Under no
circumstances must the gas lines, the venting system or the
electrical conduit be used to support the heater; or should
any other objects (i.e. ladder, person) lean against the heater
gas lines, venting system or the electrical conduit for support.
Failure to heed these warnings may result in property damage,
personal injury, or death.
CAUTION
Unit Heaters must be hung level from side to side and from
front to back, see Figure 3A and 3B. Failure to do so will result in
poor performance and/or premature failure of the unit.
GBNE-SVX001A-EN
9
Installation (continued)
Gas Piping
WARNING
To avoid damage or possible personal injury, do not connect gas piping to this unit until a supply line pressure/leak test has been completed.
Connecting the unit before completing the pressure/leak test may damage the unit gas valve and result in a fire hazard.
WARNING
Do not rely on a shut-off valve to isolate the unit while conducting gas pressure/leak tests. These valves may not be completely shut
off, exposing the gas valve to excessive pressure and damage.
PIPE SIZING
To provide adequate gas pressure to the gas unit heater, size
the gas piping as follows:
NOTICE: If more than one unit heater is to be served by the
same piping arrangement, the total cu. ft./hr. input and length
of pipe must be considered.
1. Find the cu. feet/hr. by using the following formula:
Input BTU/Hr.
Cu. feet/hr. =
1000
NOTICE: If the gas unit heater is to be fired with LP gas,
consult your local LP gas dealer for pipe size information.
2. Refer to Table 3. Match “Length of Pipe in Feet”
with appropriate “Gas Input - Cu. Feet/Hr.” figure. This
figure can then be matched to the pipe size at the top of
the column.
Example:
It is determined that a 67 foot (20.4m) run of gas
pipe is required to connect a 200 MBTU gas unit heater
to a 1,000 BTU/cu feet (0.29kW) natural gas supply.
200,000 BTU/Hr
= 200 Cu. feet/hr.
1,000 BTU/cu. feet
Using Table 3, a 1 inch pipe is needed.
NOTICE: HEATER INSTALLATION FOR USE WITH PROPANE
(BOTTLED) GAS MUST BE MADE BY A QUALIFIED L.P.
GAS DEALER OR INSTALLER. HE/SHE WILL INSURE THAT
PROPER JOINT COMPOUNDS ARE USED FOR MAKING
PIPE CONNECTIONS; THAT AIR IS PURGED FROM LINES;
THAT A THOROUGH TEST IS MADE FOR LEAKS BEFORE
OPERATING THE HEATER; AND THAT IT IS PROPERLY
CONNECTED TO THE PROPANE GAS SUPPLY SYSTEM.
Before any connection is made to the existing line supplying
other gas appliances, contact the local gas company to make
sure that the existing line is of adequate size to handle the
combined load.
NOTE: See General Safety Information section for English/
Metric unit conversion factors.
Table 3 - Gas Pipe Size
Nominal
Iron Internal
Maximum Capacity of Pipe in Cubic Feet of Gas per Hour (Cubic Meters per Hour) for Gas Pressures of 0.5 psig (3.5 kPa) or Less,
and a Pressure Drop of 0.5 Inch Water Column (124.4 Pa)
(Based on a 0.60 Specific Gravity Gas)
Length of Pipe, Feet (meters)
Pipe Size Diameter
10 20 30 40 50 60 70 80 90 100
125
150
175
200
Inch
Inch (3.0) (6.1) (9.1) (12.2) (15.2) (18.3) (21.3) (24.4) (27.4) (30.5) (38.1) (45.7) (53.3) (61.0)
1/2
0.622
175
120 97 82 73 66 61 57 53 50 44 40 37 35
(4.96) (3.40) (2.75) (2.32) (2.07) (1.87) (1.73) (1.61) (1.50) (1.42) (1.25) (1.13) (1.05) (0.99)
3/4 0.824 360 250 200 170 151 138 125 118 110 103 93 84 77 72
(10.2) (7.08) (5.66) (4.81) (4.28) (3.91) (3.54) (3.34) (3.11) (2.92) (2.63) (2.38) (2.18) (2.04)
1 1.049 680 465 375 320 285 260 240 220 205 195 175 160 145 135
(19.3) (13.2) (10.6) (9.06) (8.07) (7.36) (6.80) (6.23) (5.80) (5.52) (4.96) (4.53) (4.11) (3.82)
1 1/4
1.380
1400 950 770 660 580 530 490 460 430 400 360 325 300 280
(39.6) (26.9) (21.8) (18.7) (16.4) (15.0) (13.9) (13.0) (12.2) (11.3) (10.2) (9.20) (8.50) (7.93)
1 1/2
1.610
2100
1460
1180 990 900 810 750 690 650 620 550 500 460 430
(59.5) (41.3) (33.4) (28.0) (25.5) (22.9) (21.2) (19.5) (18.4) (17.6) (15.6) (14.2) (13.0) (12.2)
2 2.067 3950 2750 2200 1900 1680 1520 1400 1300 1220 1150 1020 950 850 800
(112) (77.9) (62.3) (53.8) (47.6) (43.0) (39.6) (36.8) (34.5) (32.6) (28.9) (26.9) (24.1) (22.7)
2 1/2 2.469 6300 4350 3520 3000 2650 2400 2250 2050 1950 1850 1650 1500 1370 1280
(178) (123) (99.7) (85.0) (75.0) (68.0) (63.7) (58.0) (55.2) (52.4) (46.7) (42.5) (38.8) (36.2)
3 3.068 11000 7700 6250 5300 4750 4300 3900 3700 3450 3250 2950 2650 2450 2280
(311) (218) (177) (150) (135) (122) (110) (105) (97.7) (92.0) (83.5) (75.0) (69.4) (64.6)
4 4.026 23000
15800
12800
10900 9700 8800 8100 7500 7200 6700 6000 5500 5000 4600
(651) (447) (362) (309) (275) (249) (229) (212) (204) (190) (170) (156) (142) (130)
1. Determine the required Cu. Ft./Hr. by dividing the input by 1000. For SI/Metric measurements: Convert BTU/Hr. to kilowatts. Multiply
the units inputs (kW) by 0.0965 to determine Cu. Meters./Hr. 2. FOR NATURAL GAS: Select pipe size directly from the table. 3. FOR
PROPANE GAS: Multiply the Cu. Ft./Hr. value by 0.633; then, use the table. 4. Refer to the metric conversion factors listed in the General
Safety section for SI Unit measurement conversions.
10
GBNE-SVX001A-EN
Installation (continued)
Pipe Installation
1. Install the gas piping in accordance with applicable local
codes.
Figure 4 - Pipe Installation, Standard Controls
2. Check gas supply pressure. Each unit heater must be
connected to a manifold pressure and a gas supply
capable of supplying its full rated capacity as specified
in Table 4. A field LP tank regulator must be used to limit
the supply pressure to a maximum of 14 inches W.C. (3.5
kPa). All piping should be sized in accordance with the
latest edition of ANSI Standard Z223.1 (NFPA 54),
National Fuel Gas Code; in Canada, according to CSA
B149. See Tables 1 & 3 for correct gas piping size. If gas
pressure is excessive on natural gas applications, install
a pressure regulating valve in the line upstream from the
main shutoff valve.
3. Adequately support the piping to prevent strain on the
gas manifold and controls.
D3631C
4. To prevent the mixing of moisture with gas, run the takeoff piping from the top, or side, of the main.
5. Standard Unit Heaters, optional two-stage units are
supplied with a combination valve which includes:
a. Manual "A" valve
b. Manual "B" valve
c. Solenoid valve
d. Pressure regulator
Pipe directly into the combination valve (see Figure 4).
6. Gas valve has a pressure test post requiring a
3/32 inch hex head wrench to read gas supply and
manifold pressures. Open 1/4 turn counterclockwise to
read, turn clockwise to close and reseat. A 5/16 inch ID
hose fits the pressure post.
7. Provide a drip leg in the gas piping near the gas unit
heater. A ground joint union and a manual gas shutoff
valve should be installed ahead of the unit heater
controls to permit servicing. The manual shutoff valve
must be located external to the jacket (See Figure 4).
8. Make certain that all connections have been adequately
doped and tightened.
CAUTION
Do not over tighten the inlet gas piping into the valve. This may
cause stresses that will crack the valve!
D3631C
WARNING
Never use an open flame to detect gas leaks. Explosive conditions may exist which may result in personal injury or death!
The appliance and its individual shutoff valve must be
disconnected from the gas supply piping system during any
pressure testing of that system in excess of 1/2 psig (3.5 kPa).
The appliance must be isolated from the gas supply
piping system by closing its individual manual shutoff
valve during any pressure testing of the gas supply
piping system at test pressures equal to or less than
1/2 psig (3.5 kPa).
Table 4 - Gas Piping Requirements
SINGLE STAGE GAS PIPING REQUIREMENTS*
GasType
Natural Gas
Propane (LP) Gas
Manifold
Pressure
3.5 inch WC
(0.9 kPa)
10.0 inch WC
(2.5 kPa)
Supply Inlet
Pressure
14.0 inch WC Max.
(3.5 kPa)
14.0 inch WC Max.
(3.5 kPa)
5.0 inch WC Min.
(1.2 kPa)
11.0 inch WC Min.
(2.7 kPa)
NOTICE: Use pipe joint sealant resistant to the action of
liquefied petroleum gases regardless of gas conducted.
*For single stage application only at normal altitudes.
WARNING
Check all pipe joints for leakage using a soap solution or other
approved method. Never use an open flame or severe personal
injury or death may occur!
GBNE-SVX001A-EN
11
Blower Set Up and Adjustment
BLOWER SET UP
The drive ratio of the motor and blower sheaves has been
preset at the factory for a temperature rise of 65°F at .2" W.C.
If the unit is to be operated under different static air flow or
pressure requirements, the drive ratio must be altered by
means of the adjustable sheave on the blower motor.
1. Ensure that all packing material, support blocks, etc
have been removed from the unit.
2. Adjust the blower drive belt tension by means of the two
tension bolts on the blower motor base. When proper
tension has been achieved, the mid-point deflection of
the belt will be 3/4" when subjected to a 5 lb. force.
3. Recheck all electrical connections.
4. When power is applied, ensure that the motor and
blower are rotating in a counter clockwise direction
when viewed from the drive side.
5. Measure the current draw of the motor.
CAUTION
The "at speed" current draw of the motor must never exceed
that specified on the motor rating plate or severe damage to the
motor will result!
Figure 5 - Motor & Blower Assembly *
BLOWER DRIVE ADJUSTMENT
WARNING
Never attempt to adjust the drive belt without first disconnecting all electrical power to the unit or severe personal injury may
result!
1. Remove the belt guard and loosen the belt tension bolts
on the blower motor base.
2. Loosen the set screw on the adjustable half of the
motor sheave. To increase the blower speed, turn
the adjustable half of the sheave clockwise, counter
clockwise to slow the blower. Retighten the set screw.
3. Realign the blower and motor sheaves if necessary.
4. Adjust the belt tension as specified in the BLOWER SET
UP section under step 2.
5. Replace the belt guard.
WARNING
Never operate the unit without the belt guard in place of severe
personal injury may result!
5. Check that the air flow of the unit, the rpm and current
draw of the blower motor and the temperature rise are
within the limits specified in Table 1, the blower motor
rating plate and the rating plate on the unit, respectively
(also see Motor Data on page 13).
* PART DESCRIPTION
A. Blower Housing and Wheel
C. Blower Shaft
D. Bearings
E. Drive Pulley
F. Driven Pulley
G. V-Belt
H. Blower Motor
I. Blower Housing Support (LH)
H. Blower Housing Support (RH)
D9000
CAUTION
Never operate the unit beyond the specified limits or severe
damage to, and or premature failure of, the unit will result!
12
* NOTICE: THE BLOWER ASSEMBLY FOR THE 100/250 UNITS
CONSISTS OF 1 WHEEL, 1 HOUSING, 1 SHAFT AND 2 BEARINGS.
FOR 300/400 UNITS THE BLOWER ASSEMBLY CONSISTS OF 2
WHEELS, 2 HOUSINGS, 1 SHAFT AND 3 BEARINGS.
GBNE-SVX001A-EN
Motor And Pulley
All motor data based on standard ODP Motors.
Table 5
Motor Full Load Amps*
HP
1/4
1/2
3/4
1
1-1/2
2
115-1
5.1
7.2
11.6
13.0
18.2
21.0
208-1
2.2
3.7
5.2
6.6
9.1
11.3
VOLTAGE - PHASE
230-1
208-3
2.3
1.7
3.8
2.3
5.0
3.0
6.5
3.4
9.1
5.1
10.5
6.2
* Average value, all speeds and frequencies.
230-3
1.3
2.2
3.4
3.4
5.2
6.0
460-3
0.7
1.1
1.7
1.7
2.6
3.0
575-3
N/A
0.8
1.1
1.3
1.7
N/A
Table 6
Pulley Table 1725 RPM Motors (1/3 to 2 H.P.)
BLOWER PULLEYS
MOTOR PULLEYS
IVL34
IVL44
1.9-2.9
2.8-3.8
Turns Open
5
4-1/2
4
3-1/2
3
2-1/2
2
1-1/2
1
1/2
5
0
4-1/2
4
3-1/2
3
2-1/2
2
1-1/2
1
1/2
0
GBNE-SVX001A-EN
AK51
4.7
AK56
5.2
AL64
6.0
AL74
7.0
AL84
8.0
AL104
10.0
697
734
771
807
844
880
918
954
991
1027
1064
1101
1137
1174
1211
1247
1284
1321
1357
1394
630
663
697
730
763
796
829
863
896
928
962
995
1028
1061
1094
1127
1161
1194
1227
1260
546
575
603
633
661
690
719
748
776
805
834
863
891
920
949
978
1006
1035
1064
1093
468
493
517
542
567
591
616
641
665
690
715
739
764
789
813
838
863
887
912
936
410
431
453
474
496
517
539
560
582
604
625
647
668
690
712
733
755
776
798
819
327
345
362
380
397
414
431
448
466
483
500
518
535
552
569
587
604
621
638
656
13
Electrical Connections
HAZARDOUS VOLTAGE!
DISCONNECT ALL ELECTRIC
POWER INCLUDING REMOTE
DISCONNECTS BEFORE
SERVICING. Failure to disconnect
power before servicing can cause
severe personal injury or death.
Standard units are shipped for use on 115 volt, 60 hertz,
single phase electric power. The motor name-plate and
electrical rating of the transformer should be checked before
energizing the unit heater electrical system. All external
wiring must conform to the latest edition of ANSI/NFPA No.
70, United States National Electrical Code, and applicable
local codes; in Canada, to the Canadian Electrical Code, Part
1, CSA Standard C22.1.
CAUTION
Do not use any tools (i.e. screwdriver, pliers, etc.) across terminals to check for power. Use a voltmeter.
It is recommended that the electrical power supply to
each unit heater be provided by a separate, fused, and
permanently live electrical circuit. A disconnect switch of
suitable electrical rating should be located as close to the
gas valve and controls as possible. Each unit heater must be
electrically grounded in accordance with the latest edition of
the United States National Electrical Code, ANSI/NFPA No.
70, or CSA Standard C22.1. Refer to Figures 6a, 6b, 6c, 6d,
6e, 6f and 6g.
Figure 6a Low-voltage
Thermostat Wiring
Single Stage
D4788
Figure 6b Low-voltage
Thermostat Wiring
Two Stage
D8541
Figure 6c Low-voltage
T834H or T834N
(or equivalent)
Thermostat Wiring
Single Stage
D8922C
NOTICE: The start-up fan delay should not exceed
30 seconds from a cold start.
IMPORTANT: For all wiring connections, refer to the wiring
diagram shipped with your unit (either affixed to the side
jacket or enclosed in the installation instructions envelope).
Should any original wire supplied with the heater have to be
replaced, it must be replaced with wiring material having a
temperature rating of at least 105°C.
Should any high limit wires have to be replaced, they must
be replaced with wiring material having a temperature
rating of 200°C minimum.
THERMOSTAT WIRING AND LOCATION:
NOTICE: The thermostat must be mounted on a vertical,
vibration-free surface, free from air currents, and in
accordance with the furnished instructions.
Mount the thermostat approximately 5 feet (1.5m) above the
floor, in an area where it will be exposed to a free circulation
of average temperature air. Always refer to the thermostat
instructions, as well as our unit wiring diagram, and wire
accordingly. Avoid mounting the thermostat in the following
locations:
1. Cold Areas - Outside walls or areas where drafts may
affect the operation of the control.
2. Hot Areas - Areas where the sun's rays, radiation, or
warm air currents may affect the operation of the
control.
3. Dead Areas - Areas where the air cannot circulate freely,
such as behind doors or in corners.
14
GBNE-SVX001A-EN
Electrical Connections (continued)
Figure 6d - Tubular Blower Units 100-150 with Single Stage Ignition, Natural Gas and Propane (LP) Gas
GBNE-SVX001A-EN
15
Electrical Connections (continued)
Figure 6e - Tubular Blower Units 100-150 with Two Stage Ignition, Natural Gas and Propane (LP) Gas
16
GBNE-SVX001A-EN
Electrical Connections (continued)
Figure 6f - Tubular Blower Units 175-400 with Single Stage Ignition, Natural Gas and Propane (LP) Gas
GBNE-SVX001A-EN
17
Electrical Connections (continued)
Figure 6g - Tubular Blower Units 100-150 with Two Stage Ignition, Natural Gas and Propane (LP) Gas
18
GBNE-SVX001A-EN
Venting
ANSI now organizes vented
appliances into four categories.
Venting Categories
Non
Condensing Condensing
Negative
Vent I
II
Pressure
Positive
Vent III IV
Pressure
Category I
Includes non-condensing appliances
with negative vent pressure, like the
traditional atmospheric unit heater.
Category II
Groups condensing appliances
with negative vent pressure.
Category IV
Covers condensing appliances with
positive vent pressure.
NOTICE: Category II and IV do not
apply to equipment specified within
this manual.
Category III
Appliances are non-condensing
and operate with a positive vent
pressure.
All unit heaters must be vented! All Venting installations shall be in accordance with the latest edition of Part 7, Venting of
Equipment of the National Fuel Gas Code, ANSI Z223.1 (NFPA 54), or applicable provisions of local building codes. Refer to
page 21 for Canadian installations. Refer to Figures 7, 8, 9A, 9B, 10A and 10B.
WARNING
CARBON MONOXIDE! Your venting system must not be blocked by any snow, snow drifts, or any foreign matter. Inspect your venting
system to ensure adequate ventilation exists at all times! Failure to heed these warnings could result in Carbon Monoxide Poisoning
(symptoms include grogginess, lethargy, inappropriate tiredness, or flu-like symptoms).
Do not damper or add heat recovery devices to the flue piping. Failure to open such a damper prior to operating
gas unit will result in the spillage of flue gas into the occupied space.
Vertically Vented Unit Heaters (Category I)
Observe the following precautions when venting the unit:
1. Use flue pipe of the same size as the flue connections
on the gas unit heater (See Table #1). All heaters should
be vented with double wall or single wall vent, a factory
built chimney, or a lined brick and mortar chimney that
has been constructed in accordance with the National
Building Code. Type B vent should only be used for
vertical rise portions of a Category I vent pipe system.
Type B vent pipe should not be used for horizontal runs
of vent pipe.
2. Provide as long a vertical run of flue pipe at the gas unit
heater as possible. A minimum of 5' (1.5m) of vertical
flue is required. The top of the vent pipe should extend at
least 2' (0.61m) above the highest point on the roof. Install
a weather cap over the vent opening. Consideration
should be made for anticipated snow depth.
3. Slope horizontal runs upward from the gas unit heater at
least 1/4" per foot (21mm/m) minimum. Horizontal runs
should not exceed 75% of the vertical height of the vent
pipe, or chimney, above the flue pipe connection, up to
a maximum length of 10' (3m). Horizontal portions of the
venting system shall be supported at minimum intervals
of 4' (1.2m). In Canada, support at minimum intervals of
3' (1m).
GBNE-SVX001A-EN
4. Use as few elbows as possible.
5. Seal all vent pipe joints and seams to prevent
leakage. Use General Electric RTV-108, Dow
Corning RTV-732, or equivalent silicone sealant
with a temperature rating of 500 degrees F, or 3M #425
aluminum foil tape (or equivalent).
6. Avoid running vent pipe through unheated spaces.
7. When this cannot be avoided, insulate the pipe to
prevent condensation of moisture on the walls of the
pipe.
8. Do not damper the flue piping. Failure to open such a
damper prior to operating the gas unit heater will result
in the spillage of flue gas into the occupied space.
9. Avoid installing units in areas under negative pressure
due to large exhaust fans or air conditioning. When
required, a flue vent fan should be installed in
accordance with the instructions included with the fan.
10. Vent connectors serving Category I and Category II
heaters shall not be connected into any portion of
mechanical draft systems operating under positive
pressure.
19
Venting (continued)
Horizontally Vented Unit Heaters (Category III)
Horizontal venting arrangements are designed to be used
with single wall vent pipe. Horizontal venting arrangements
must terminate external to the building using UL 1738 Listed
single wall or double wall vent. For installations in Canada,
use corrosion resistant and gas-tight, listed vent pipe
conforming with local building codes, or in the absence of
local building 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. See Figures 8, 9A and 10A for
special installation requirements regarding these venting
conditions.
WARNING
The vent terminal must be at least 12" (305mm) from the
exterior of the wall that it passes through to prevent
degradation of the building material by flue gases.
Through the wall vent for these appliances shall NOT
terminate over public walkways, or over an area where the
condensate or vapor could create a nuisance or hazard or
could be detrimental to the operation of regulators, relief
valves, or other equipment.
The vent pipe equivalent length must not exceed 50' (15.2m).
Equivalent length is the total length of straight sections PLUS
10' (3.05m) for each 90° elbow and 4' (1.22m) for each 45° elbow.
Maintain clearance between the vent pipe and combustible
materials according to vent pipe manufacturers instructions
Do not use Type B (double wall) vent internally within the building on horizontally vented power vented units! This can result
in death, serious injury or substantial property damage.
If double wall venting is used, components which are UL
Listed and approved for Category III positive pressure venting
systems MUST be used.
A Breidert Type L, Fields Starkap, or equivalent vent cap must
be supplied by the customer for each power vented unit. The
vent pipe diameter MUST be as specified in Table 1. All unit
sizes are factory equipped with the required flue size collar;
attach in place (if not mounted to outlet); refer to included
vent collar instruction sheet for additional requirements.
Seal all vent pipe joints and seams to prevent leakage. Use
General Electric RTV-108, Dow-Corning RTV-732 silicone
sealant or equivalent sealant with a temperature rating of 500°
F; or 3M #425 aluminum foil tape (or equivalent). The vent air
system must be installed to prevent collection of condensate.
Pitch horizontal pipes downward 1/4" per foot (21mm per
meter) toward the outlet for condensate drainage.
Horizontal portions of the venting systems shall be supported
at maximum intervals of 4' (1.2m) to prevent sagging (in
Canada, support at 3' (1m) maximum intervals).
Insulate single wall vent pipe exposed to cold air or running
through unheated areas.
Each unit must have an individual vent pipe and vent
terminal! Each unit MUST NOT be connected to other vent
systems or to a chimney.
Table 7
Vent Systems Termination Clearance Requirements
Minimum Clearance for Termination Locations
Structure/Object
USA
CANADA
Door, window, or gravity vent inlet;
combustion air inlet for other appliances
9 inch for 10,000 to 50,000 BTU/Hr input;
12 inch for input exceeding 50,000 BTU/Hr.
9 inch (230mm) for 10,000 to 50,000 BTU/Hr input;
12 inch (305mm) for input exceeding 50,000 BTU/Hr.
Forced air inlet within 10 feet
3 feet above
6 feet (1.8m)
Adjoining Building or parapet
6 feet
6 feet (1.8m)
Adjacent public walkways
7 feet above grade
7 feet (2.1m) above grade
Electric, gas meters
& regulators
4 feet horizontal
3 feet (0.9m) horizontally from meter/regulator asembly.
6 feet (1.8m), any direction, from a gas service regulator
vent outlet
Above grade level*
1 foot
1 foot (0.3m)
*Above maximum anticipated snow depth.
20
GBNE-SVX001A-EN
Venting (continued)
Figure 7 - Vertically Vented Tubular Unit Heater – Category I
D8929
Figure 8 - Horizontally Vented Tubular Unit Heater – Category III
D8930
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.
GBNE-SVX001A-EN
21
Venting (continued)
Figure 9A
D3620F
Figure 9B
D3619C
22
GBNE-SVX001A-EN
Venting (continued)
Figure 10A
D3661F
Figure 10B
D3662D
GBNE-SVX001A-EN
23
Operation
Power Vented Blower Units Direct Spark Ignition
EXPLANATION OF CONTROLS:
1. The unit heater is equipped with a power vent system
that consists of a power venter motor and blower,
pressure switch, and sealed flue collector in place of the
conventional draft diverter.
2. The power venter motor is energized by the room
thermostat through the integrated control board when
a demand for heat is sensed. The pressure switch
measures the flow through the vent system and
energizes the direct spark ignition system beginning the
pre-purge timing when the flow is correct.
WARNING
The pressure switch MUST NOT be bypassed. The unit MUST
NOT be fired unless the power venter is operating. An unsafe
condition could result.
3. The direct ignition system consists of an ignition control
module and a gas valve. When the pre-purge period
ends, the spark ignition system is energized, and the
gas valve opens to supply gas to the burners. When the
thermostat is satisfied, the vent system is de-energized
and the valve closes to stop the flow of gas to the unit.
4. The limit switch interrupts the flow of electric current to
the control board, interrupting the flow of gas to the gas
valve if the unit heater becomes overheated.
5. Once the thermostat is satisfied, or the limit switch
interrupts the flow of electric current to the control
board, the unit will begin a post-purge period. When the
post-purge period ends, the power venter motor is deenergized.
6. The fan operation is delayed 30 seconds once the
thermostat is closed, and continues operation for 30
seconds after the thermostat opens.
7. The wall thermostat, supplied optionally, is a temperature
sensitive switch that operates the vent and ignition system
to control the temperature of the space being heated. The
thermostat must be mounted on a vertical, vibration-free
surface free from air currents and in accordance with the
furnished instructions (also refer to Electrical Section).
START-UP (Also refer to lighting instruction plate equipped
on the unit)
1. Open the manual gas valve in the gas supply line to the
unit heater. Loosen the union in the gas line to purge it of
air. Tighten the union and check for leaks.
WARNING
Never use an open flame to detect gas leaks. Explosive conditions may exist which could result in personal injury or death.
2. Open the manual valve on the unit heater.
3. Turn ON the electrical power.
4. The unit should be under the control of the thermostat.
Turn the thermostat to the highest point and determine
that the power venter motor starts and the burners ignite.
Turn the thermostat to the lowest point and determine
that the power venter motor shuts off and the burners
are extinguished.
5. Turn the thermostat to the desired position.
6. See Gas Input Rate and Adjustments sections.
SHUT DOWN
1. Turn the valve selector lever to the “OFF” position.
2. Turn off the electricity.
3. To relight, follow “start-up” instructions.
See Figures 11-17 for parts/identification.
NOTICE: The start-up fan delay must not exceed 30 seconds
from a cold start.
Figure 11 Direct Spark Ignition
System, Bottom View
D6923B
24
GBNE-SVX001A-EN
Operation (continued)
Primary Air Shutter Adjustment
Primary air adjustment is made at the factory. No field adjustments are necessary.
Gas Input Rate
Check the gas input rate as follows (Refer to General Safety
Information section for metric conversions).
CAUTION
Never overfire the unit heater, as this may cause unsatisfactory
operation, or shorten the life of the heater.
1. Turn off all gas appliances that use gas through the same
meter as the unit heater.
2. Turn the gas on to the unit heater.
2. PROPANE GAS: An exact manifold pressure of 10.0
inches WC (2.5 kPa) must be maintained for proper
operation of the unit heater. If the unit is equipped with
a pressure regulator on the combination gas valve,
follow steps "a" through "d" above. If the unit is not
so equipped, the propane gas supply system pressure
must be regulated to attain this manifold operating
pressure.
3. The adjusted manifold pressure should not vary more
than 10% from pressure specified in Table 8.
3. Clock the time in seconds required to burn 1 cubic foot
of gas by checking the gas meter.
4. Insert the time required to burn one cubic foot of gas into
the following formula and compute the input rate.
3600 (Sec. per Hr.) X BTU/Cu. Feet
Time (Sec.)
= Input Rate
For example:
Assume the BTU content of one cubic foot of gas is 1000, and
that it takes 18 seconds to burn one cubic foot of gas.
3600 x 1000
= 200,000
18
NOTICE: If the computation exceeds, or is less than 95%
of the gas BTU/hr. input rating (see Table 1), adjust the gas
pressure.
Adjust the gas pressure as follows:
1. NATURAL GAS: Best results are obtained when the
unit heater is operating at its full rated input with the
manifold pressure of 3.5 inches WC (0.9 kPa). Adjustment
of the pressure regulator is not normally necessary since
it is preset at the factory. However, field adjustment may
be made as follows:
a. Attach manometer at the pressure tap plug adjacent
to the control outlet.
b. Remove the regulator adjustment screw cap, located
on the combination gas valve.
c. With a small screwdriver, rotate the adjustment screw
counterclockwise to decrease pressure, or clockwise
to increase pressure.
d. Replace regulator adjustment screw cap.
GBNE-SVX001A-EN
Table 8 - Main Burner Orifice Schedule*
*
INPUT
IN
1000
BTU
100
125
150
175
200
250
300
350
400
TYPE OF GAS
NATURAL
PROPANE
HEATING VALUE
1050 BTU/Ft3
2500 BTU/Ft3
(39.1 MJ/m3)
(93.1 MJ/m3)
3.5 INCH WC
(0.87kPA)
10 INCH WC
(2.49 kPA)
93
42
116
42
140
42
163
42
186
42
233
42
280
42
326
42
372
42
40
53
50
53
60
53
70
53
80
53
100
53
120
53
140
53
160
53
MANIFOLD
PRESSURE
FT 3/HR
ORIFICE DRILL
FT 3/HR
ORIFICE DRILL
FT 3/HR
ORIFICE DRILL
FT 3/HR
ORIFICE DRILL
FT 3/HR
ORIFICE DRILL
FT 3/HR
ORIFICE DRILL
FT 3/HR
ORIFICE DRILL
FT 3/HR
ORIFICE DRILL
FT 3/HR
ORIFICE DRILL
NUMBER
OF BURNER
ORIFICES
4
5
6
7
8
9
10
11
12
*This schedule is for units at operating at normal altitudes of 2000 feet
(610m) or less.
When installed in Canada, any references to deration at altitudes in
excess of 2000 feet (610m) are to be ignored. At altitudes of 2000 to
4500 ft. (610 to 1372m), the unit heaters must be field derated to 90%
of the normal altitude rating, and be so marked in accordance with ETL
certification. See Table 8A for field deration information.
25
Operation (continued)
TUBULAR UNIT HEATER
HIGH ALTITUDE DERATION
This Tubular Unit Heater has been manufactured utilizing
standard burner orifices and a normal manifold pressure
setting as per the specifications shown on your unit rating
plate.
in the field, attach label #J17-06459 to the unit, and record
adjusted manifold pressure, altitude of the unit installation
and the technician’s name and date on the label using a
permanent marker.
All unit deration must be done through field adjustments by
a qualified technician. Once the proper adjustments are made
Refer to Installation Instruction section on Adjustments-Gas
Input Rate for adjusting the manifold pressure.
Table 8A
High Altitude Deration - United States
Manifold Pressure
Altitude
Natural Gas2
BTU Output1
Liquid Propane3
Feet
Meters
Inches W.C.
Pa
Inches W.C.
Pa
Percentage
0-2,000
0-610
3.5
872
10
2,491
100%
2,001-3,000
611-915
3.2
797
9.2
2,292
96%
3,001-4,000
916-1,220
2.9
722
8.4
2,092
92%
4,001-5,000
1,221-1,525
2.7
673
7.7
1,918
88%
5,001-6,000
1,526-1,830
2.4
598
7
1,744
84%
6,001-7,000
1,831-2,135
2.2
548
6.4
1,594
80%
7,001-8,000
2,136-2,440
2
498
5.7
1,420
76%
8,001-9,000
2,441-2,745
1.8
448
5.1
1,270
72%
9,001-10,000
2,746-3,045
1.6
399
4.6
1,145
68%
Notes:
1. Deration based on ANSI Z223.1 (NFPA 54).
2. Table based on heating value of 1,050 BTU/Cu. ft. at sea level.
3. Table based on heating value of 2,500 BTU/Cu. ft. at sea level.
4. Consult local utility for actual heating value.
High Altitude Deration - Canada
Manifold Pressure
Altitude
BTU Output1
Liquid Propane3
Feet
Meters
Inches W.C.
Pa
Inches W.C.
Pa
Percentage
0-2,000
0-610
3.5
872
10
2,491
100%
2,001-3,000
611-915
3.2
797
9.2
2,292
96%
3,001-4,000
916-1,220
2.9
722
8.4
2,092
92%
4,001-4,500
1,221-1,371
2.8
697
7.9
1,968
90%
Notes:
26
Natural Gas2
1. Deration based on CGA 2.17-M91
2. Table based on heating value of 1,050 BTU/Cu. ft. at sea level.
3. Table based on heating value of 2,500 BTU/Cu. ft. at sea level.
4. Consult local utility for actual heating value.
GBNE-SVX001A-EN
Table 9 - Tubular Propeller Troubleshooting Guide
SYMPTOMS
POSSIBLE CAUSE(S)
CORRECTIVE ACTION
A. Flame pops
back.
1. Burner orifice too small.
1. Check with local gas supplier for proper orifice size and replace.
Refer to "Gas Input Rate."
B. Noisy Flame.
1. Irregular orifice causing whistle or resonance.
2. Excessive gas input.
1. Replace orifice.
2. Test and reset manifold pressure (see Table 4 - "Gas Piping
Requirements").
C. Yellow tip
flame (some
yellow tipping
on LP gas is
permissible).
1 Clogged main burners.
2. Misaligned orifices.
3. Insufficient combustion air.
1. Clean main burner ports.
2. Replace manifold assembly.
3. Refer to "Installation - Clearances" and "Venting" to ensure unit is
properly mounted and vented.
4. Check gas input and manifold pressures.
D. Floating
flame.
1. Blocked venting.
2. Insufficient combustion air.
3. Blocked heat exchanger.
4. Air leak into combustion chamber or flue
collector.
1. Clean flue. Refer to "Installation."
2. Clean combustion air inlet openings.
3. Clean heat exchanger. Refer to "Installation."
4. Determine leak and repair accordingly.
E. Gas odor
1. Gas leak. Shut off gas supply immediately!
2. Leaking gas test port on valve.
3. Blocked heat exchanger.
4. Blocked flue collector.
5. Negative pressure in the building.
1. Inspect all gas piping and repair accordingly.
2. Check to ensure gas test ports are sealed.
3. Clean heat exchanger. Refer to "Installation."
4. Clean flue collector. Refer to "Installation."
5. See "Installation."
F. Delayed
ignition.
1. Improper ground.
2. Bad or broken spark cable.
3. Faulty control.
4. Pressure regulator set too low.
5. Main burner orifices dirty.
6. Improper venting.
1. Check grounding wires and spark bracket connections.
2. Inspect spark cable connections and cuts. Replace if necessary.
3. Check to ensure spark is energized after pre-purge period.
4. Test and reset manifold pressure.
5. Clean or replace orifices.
6. Refer to "Installation."
G. Failure to
ignite.
1. Gas leak. Shut off gas supply immediately!
2. No power supply to unit.
3. Thermostat not calling.
1. Open all manual valves, check for leaks.
2. Turn on power supply, check fuses and replace if bad.
3. Turn up thermostat. Check for 24V on terminals R and W1 on
terminal strip.
4. Check switch for continuity if open with no heat present; replace.
5. Check switch operation to ensure switch closes after draftor
purge period. If it does not make, check tubing connections for
blockage.
6. Check for continuity and voltage in safety and control circuits;
replace an item where continuity or voltage not found.
7. Check all wiring per diagram.
8. Check all ground wires and connections.
9. Check both for wiring according to diagram; check for 24V at gas
valve terminals during trial for ignition period. If present and valve
does not open, replace valve.
4. Possibly over fired.
4. Defective high limit.
5. Defective draftor prove switch.
6. Defective spark ignitor, gas valve,
thermostat or transformer.
7. Loose wiring.
8. Improper ground.
9. Improper thermostat or transformer wiring.
H. Condensation
1. Improper venting.
2. Unit under fired.
3. Building/space too cold.
1. Refer to "Installation."
2. Check gas supply pressures to unit. Refer to "Installation."
3. Refer to "Installation."
I. Burners will
not shut off.
1. Thermostat located improperly.
2. Improper thermostat wiring.
1. Relocate thermostat away from outside wall or drafts.
2. Check thermostat circuit for open and close on heater terminal
strip "R" and "W."
3. Check thermostat circuit for shorts or any staples piercing wires.
4. If thermostat is calling after set point has been satisfied, replace.
5. Check for 24V on gas valve terminals when thermostat not
calling. Replace if necessary.
6. Check for 24V at terminals "R" and "W." If not present and board
is not in flash code mode, replace board.
7. Refer to "Pipe Installation" and Table 4 - "Gas Piping
Requirements."
3. Shorted circuit.
4. Defective thermostat.
5. Defective/sticking gas valve.
6. Defective control board.
7. Excessive gas supply pressure.
J. Rapid burner
cycling.
1. Loose electrical connections at thermostat
or gas valve.
2. Excessive thermostat heat anticipator
setting.
3. Unit cycling on high limit.
4. Thermostat located improperly.
K. Blower will
not run.
1. Loose electrical connections.
2. Defective motor or overload.
3. Defective control board.
4. Contactor or starter overload tripped.
5. Broken belt.
GBNE-SVX001A-EN
1. Tighten all electrical connections.
2. Adjust heat anticipator setting for longer cycles. Refer to
"Electrical Connections."
3. Check for proper air supply across heat exchanger and proper
gas supply.
4. Relocate thermostat away from outside wall or drafts.
1. Check and tighten wires on blower circuit.
2. Test for 115V on terminal ACB Heat and "L2." If voltage is present,
replace motor.
3. Test for 115V on terminal ACB Heat and "L2." If voltage is not present 45
seconds after trial for ignition, replace board.
4. Test for 115V on coil of contactor. Check if overload has tripped;
reset. Check amp draw to motor. Check incoming for power and
contactor operation.
5. Replace belt.
27
Table 9 - Tubular Propeller Troubleshooting Guide (continued)
SYMPTOMS
POSSIBLE CAUSE(S)
L. Blower motor
turns on and off
while burner is
operating.
1. Motor overload protection is tripping.
M. Blower motor will
not stop.
1. Control board is in flame failure mode.
N. Not enough heat.
1. Incorrect gas input.
2. Heater undersized.
2. Loose wiring or connection.
3. Control board is defective.
2. Improperly wired blower circuit.
3. Control board is defective.
3. Thermostat malfunction.
4. Heater cycling on limit.
5. Incorrect orifice sizes.
O. Too much heat.
1. Unit is over fired.
2. Thermostat malfunction.
3. Heater runs continuously.
4. Defective gas valve.
5. Excessive gas supply pressure.
6. Excessive static pressure.
CORRECTIVE ACTION
1. Check motor amp against the motor name plate, check voltage,
replace if found defective.
2. Check for 115V between motor leads.
3. Check terminal ACB Heat for voltage. If voltage not constant,
replace board.
1. Turn 115V power off to the unit, wait 10 seconds and reapply
voltage to the unit.
2. Check wiring of blower circuit to wiring diagram.
3. If unit is not calling for heat and board is not in flash code
mode, replace board.
1. Refer to "Gas Input Rate"
2. Is the heater output sized correctly for the heat loss of the
space? Has the space been enlarged? Is the heater located in
the space properly (see "Installation")?
3. Check thermostat circuit; 24V on terminals "R" and "W" on
terminal strip.
4. Check air movement across heat exchanger. Check voltage and
amps at the blower motor. Check gas input to ensure unit is not
over fired. Check heat exchanger to ensure unit is not dirty.
5. Check orifice size (Refer to "Gas Input Rate"), replace if
necessary.
1. Refer to "Gas Input Rate." Check orifice size. Replace if too large.
2. Check thermostat for operation, to ensure circuit open and closes.
3. Check wiring per diagram. Check operation at the gas valve.
Look for a short in thermostat circuit.
4. Replace valve and check pressure setting (See Table 4 "Gas
Piping Requirements").
5. Refer to "Pipe Installation" and Table 4 - "Gas Piping
Requirements."
6. Adjust blower sheave to correct RPM - See "Blower Set Up and
Adjustment."
P. Noisy blower/
motor.
1. Blower wheel loose.
2. Blower wheel is dirty.
3. Blower wheel is rubbing on housing.
4. Bearings are dry.
5. Pulley is loose.
1. Replace or tighten.
2. Clean blower wheel.
3. Realign blower wheel.
4. Oil bearings on blower motor. (Refer to label on motor.)
5. Check Blower and Motor pulleys. Replace or tighten as necessary.
Q. Cold air is
delivered during
heater operation.
1. Incorrect manifold pressure or input.
1. Test and reset manifold pressure (see Table 4 - "Gas Piping
Requirements").
2. Check Blower and Motor pulleys. Replace or tighten as necessary.
R. High limit is
tripping.
1. Unit is over fired.
2. Air flow is too low.
3. Defective high limit.
2. Air throughput too high.
4. Defective control board.
S. Power ventor will
not run.
1. No power supply to unit.
2. Thermostat not calling.
3. Loose wiring or connection.
4. Motor overload protection is tripping or
bad motor.
5. Defective control board.
T. Power ventor turns
on and off during
operation.
1. Power ventor improperly wired.
2. Motor overload cycling or defective
motor.
3. Defective control board.
1. Refer to "Gas Input Rate." Check orifice size. Replace if too large.
2. Check for proper voltage; ensure blower assembly is correct.
3. Check operation of switch. If switch is open during operation,
check gas pressure and/or CFM; adjust accordingly. If switch is
open during start-up, replace switch.
4. Check for 24V on line side of high limit. Constant voltage
should be recorded. If not, control board is suspect. Check
flash code.
1. Turn on power supply, check fuses and replace if bad.
2. Turn up thermostat. Check for 24V on terminals R and W1 on
terminal strip.
3. Check all wiring in the power vent circuit to ensure good
connection, including "Neutral."
4. Check for 115V between motor leads and check amp draw of
motor. Replace if necessary.
5. Check for continuous 115V on terminal "CBM" Blower" and
neutral during call for heat. If not present and all checks are
normal, replace.
1. Check power ventor circuit per wiring diagram.
2. Check motor voltage and amp draw to motor name plate,
replace if motor found defective.
3. Check for continuous 115V on terminal "CBM" Blower" and
neutral during call for heat. If not present and all checks are
normal, replace.
U. Power ventor will
not stop.
1. Power ventor improperly wired.
2. Main burner did not light on call for heat.
3. Defective control board.
1. Check power ventor circuit per wiring diagram.
2. Heater is in lockout mode; check flash code table for problem.
3. If no flash codes present along with no call for heat, replace
control board.
V. Noisy power
ventor.
1. Power ventor wheel loose.
2. Power ventor wheel is dirty.
3. Power ventor wheel is rubbing on
housing.
1. Replace or tighten.
2. Clean power ventor wheel.
3. Realign power ventor wheel.
28
GBNE-SVX001A-EN
Table 9A - Tubular Blower Troubleshooting with LED Indicator Assistance
No Cycling or appliance power
or thermostat call for heat since
appliance failure has occurred.
WARNING
Line voltage power can cause
product damage, severe injury or
death. Only a trained experienced
service technician should perform
this trouble-shooting.
1. Check the system thermostat
to make sure it is calling for
heat. (Do not cycle the thermostat on and off at this time.)
LED STATUS
INDICATES
Control OK, no call for heat.
Not Applicable
Control OK, call for heat present.
Not Applicable
Steady Off
Internal control fault, or no power.
1. Line voltage on terminals 120
and C on transformer.
2. Low voltage (24V) on terminals
24 and C on transformer.
3. 5 Amp fuse on circuit board.
Steady On
Control internal failure or bad
ground.
1. Common side of transformer
grounded to chassis.
2. Loose spark ignitor.
2 Flashes
In lockout from failed ignitions
or flame losses.
1. Gas supply off or gas supply
pressure too low.
2. Flame sense rod contaminated
or loose wire.
3. Gas valve switch is off or wires
are not connected.
4. Broken or cracked porcelain on
flame probe or spark ignitor.
3 Flashes
Pressure Switch open with inducer
on or closed with inducer off.
1. Obstructions or restrictions
in appliance air intake or flue
outlet are preventing proper
combustion airflow.
2. Moisture or debris in tubing that
connects pressure switch and
draft inducer.
3. Airflow switch jumpered or
miswired.
4 Flashes
Limit or rollout switch is open.
1. Open manual reset rollout switch.
2. Gas pressure too high, over fire
condition.
3. Incorrect airflow due to blockage
or motor not operating.
2.
Remove
the
appliance
burner compartment door.
Do not interrupt power to the
control board by opening any
electrically interlocked panels.
3. Observe the LED indicator on
the control board (a greem
LED labeled “OK” indicates
system faults); check and
repair system as noted in the
chart to the right.
*NOTICE: Air flow proving switch
and power ventor hose barbs
must be free of any dust or
debris at all times. Periodically
check these openings and/or if
any problems occur.
5 Flashes
6 Flashes
GBNE-SVX001A-EN
CHECK/REPAIR
Slow Flash
Fast Flash
Flame sensed while gas valve is off. 1. Flame probe miswired
or shortened.
On-board microprocessors disagree. 1. Thermostat is interfering
with control board.
29
Maintenance
PERIODIC SERVICE
NOTICE: The heater and vent system should be checked once
a year by a qualified technician.
All Maintenance/Service information should be recorded
accordingly on the Inspection Sheet provided in this manual.
WARNING
Open all disconnect switches and disconnect all electrical and
gas supplies and secure in that position before servicing unit.
Failure to do so may result in personal injury or death from
electrical shock.
WARNING
Gas tightness of the safety shut-off valves must be checked on
at least an annual basis. Failure to do so may result in death,
serious injury or substantial property damage.
To check gas tightness of the safety shut-off valves, turn off
the manual valve upstream of the appliance combination
control. Remove the 1/8 inch pipe plug on the inlet side
of the combination control and connect a manometer to
that tapping. Turn the manual valve on to apply pressure
to the combination control. Note the pressure reading on
the manometer, then turn the valve off. A loss of pressure
indicates a leak. If a leak is detected, use a soap solution
to check all threaded connections. If no leak is found,
combination control is faulty and must be replaced before
putting appliance back in service.
Should maintenance be required, perform the following
inspection and service routine:
1. Inspect the area near the unit to be sure that there is
no combustible material located within the minimum
clearance requirements listed in this manual.
WARNING
Under no circumstances should combustible material be located
within the clearances specified in this manual. Failure to provide
proper clearance could result in personal injury or equipment
damage from fire.
30
2. Turn off the manual gas valve and electrical power to the
unit heater.
3. To clean or replace the burners, remove burner cover.
Remove top strip from above burners. Lift burners up
and pull away from manifold to remove.
4. With the burners removed, wire brush the inside surfaces
of the heat exchanger.
5. Remove any dirt, dust, or other foreign matter from the
burners using a wire brush and/or compressed air.
6. Reassemble the unit heater by replacing all parts in
reverse order.
7. Check the burner adjustment.
8. Check all gas control valves and pipe connections for leaks.
9. Check the operation of the automatic gas valve by
lowering the setting of the thermostat, stopping the
operation of the gas duct furnace. The gas valve should
close tightly, completely extinguishing the flame on the
burners.
10. Inspect and service motor/fan assembly. To maintain
efficient air flow, inspect and clean the fan blades and
guard to prevent buildup of foreign matter.
11. Check motor lubrication. If oiling is required, add 1 or 2
drops of electric motor oil as follows:
a. Light Duty - After 3 years or 25,000 hours of
operation.
b. Average Duty - Annually after 3 years or 8,000 hours
of operation.
c. Heavy Duty - Annually after 1 year or at least 1500
hours of operation.
CAUTION
Never over oil the motor or premature failure may occur! Over
oiling the motor may result in minor injury or property damage.
12. Check and test the operational functions of all safety
devices supplied with your unit.
GBNE-SVX001A-EN
Limited Warranty
Power Vented Tubular Blower Unit Heaters
1. The "Manufacturer" warrants to the original owner at original installation site that the above model Gas-Fired Heater ("the
Product") will be free from defects in material or workmanship for (1) year from the date of shipment from the factory, or
one and one-half (1-1/2) years from the date of manufacture, whichever occurs first. The Manufacturer further warrants
that the complete heat exchanger, flue collector, and burners be free from defects in material or workmanship for a period
of ten (10) years from the date of manufacture. If upon examination by the Manufacturer the Product is shown to have a
defect in material or workmanship during the warranty period, the manufacturer will repair or replace, at its option, that
part of the Product which is shown to be defective.
2. This limited warranty does not apply:
a. if the product has been subjected to misuse or neglect, has been accidentally or intentionally damaged, has not been
installed, maintained, or operated in accordance with furnished written instructions, or has been altered or modified
in any way by any unauthorized person.
b. to any expenses, including labor or material, incurred during removal or reinstallation of the Product
c. to any damage due to corrosion by chemicals, including halogenated hydrocarbons, precipitated in the air
d. to any workmanship of the installer of the Product
3. This limited warranty is conditional upon:
a. advising the installing contractor, who in turn notify the distributor or manufacturer
b. shipment to the Manufacturer of that part of the Product thought to be defective. Goods can only be returned with
prior written approval of the Manufacturer. All returns must be freight prepaid.
c. determination in the reasonable opinion of the Manufacturer that there exists a defect in material or workmanship
4. Repair or replacement of any part under this Limited Warranty shall not extend the duration of the warranty with respect
to such repaired or replaced part beyond the stated warranty period.
5. THIS LIMITED WARRANTY IS IN LIEU OF ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, AND ALL SUCH OTHER
WARRANTIES, INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE, ARE HEREBY DISCLAIMED AND EXCLUDED FROM THIS LIMITED WARRANTY. IN NO EVENT
SHALL THE MANUFACTURER BE LIABLE IN ANY WAY FOR ANY CONSEQUENTIAL, SPECIAL, OR INCIDENTAL DAMAGES
OF ANY NATURE WHATSOEVER, OR FOR ANY AMOUNTS IN EXCESS OF THE SELLING PRICE OF THE PRODUCT OR
ANY PARTS THEREOF FOUND TO BE DEFECTIVE. THIS LIMITED WARRANTY GIVES THE ORIGINAL OWNER OF THE
PRODUCT SPECIFIC LEGAL RIGHTS. YOU MAY ALSO HAVE OTHER RIGHTS WHICH MAY VARY BY JURISDICTION.
In the interest of product improvement, we reserve the right to make changes without notice.
GBNE-SVX001A-EN
31
Identification Of Parts Blower Unit Heaters
Figure 12 - Blower Parts
Figure 13 - Component Parts
Hanger Locations
Flue
Power Vent
Assembly
Belt Guard
Motor
Blower
Baffle (Secondary)
Electrical Control
Panel Assembly
Flame Sensor
Manifold Burner
Assembly
Burner Cover
Vestibule Panel/
Tube Assembly
Ignitor
Gas Valve
Peep Hole Cover
(Burner)
D8927
D8925B
Figure 14 - Vestibule Panel/Tube Assembly
D8927
Figure 15 - Electrical Control Panel Assembly
Accordian Fastener
Pressure Switch
Power Venter
Connection
Transformer
Fan Motor
Connection
Control Board
D8928
Base
Terminal Block
D9064
Electrical Control
Panel Door
D8928
32
D9064
GBNE-SVX001A-EN
Figure 17 - Power Venter Assembly
(300/400 Unit Sizes Shown)
Figure 16 - Power Venter Assembly
(100/250 Unit Sizes Shown)
D4798
D4780
Figure 18 - Turbulator/High Limit Location
Power Venter Ass'y
Vestibule Panel/
Tube Ass'y
Flue Collector
Turbulator
D8926
High Limit Ass'y
D8926
How To Order Replacement Parts
Please send the following information to your local representative: if further assistance is needed, contact the
manufacturer's customer service department.
• Unit Number
• Serial Number
• Part Description and Number as shown
GBNE-SVX001A-EN
33
Gas Equipment
Start-Up
Customer ____________________________________ Job Name & Number _________________________
Type of Equip:
PRE-INSPECTION INFORMATION
With power and gas off.
Unit Heater
Serial Number _________________________ Model Number __________________________
Name Plate Voltage:
_____________
Name Plate Amperage: _____________
Type of Gas:
Natural
Tank Capacity _______ lbs.
_______ kg
❐
❐
❐
❐
❐
❐
❐
❐
LP
Rating: ______ BTU @ ____ °F
______ kw @ ____ °C
Are all panels, doors, vent caps in place?
Has the unit suffered any external damage?
Damage ______________________________
Does the gas piping and electric wiring appear to be installed in a professional manner?
Has the gas and electric been inspected by the local authority having jurisdiction?
Is the gas supply properly sized for the equipment?
Were the installation instructions followed when the equipment was installed?
Have all field installed controls been installed?
Do you understand all the controls on this equipment? If not, contact your wholesaler or rep.
(DO NOT START this equipment unless you fully understand the controls.)
GENERAL
With power and gas off.
❐ Make certain all packing has been removed.
❐ Tighten all electrical terminals and connections.
❐ Check all fans & blowers for free movement.
❐ Check all controls for proper settings.
FAN
With power and gas off.
❐
❐
❐
Check voltage. L1_____ L2_____ L3_____
Check rotation of main blower(s).
Check motor amps. L1_____ L2_____ L3_____
GAS HEATING
With power and gas on.
❐ Inlet gas pressure. ____ in. W.C. or ____ kPa
❐ Burner ignition.
❐ Manifold gas pressure. ____ in. W.C. or ____ kPa
❐ Cycle firestat and/or freezestat.
❐ Check electronic modulation. Set at: __________
❐ Cycle and check all other controls not listed.
❐ Check operation of remote panel.
❐ Entering air temp. _____ °F or ____ °C
❐ Discharge air temp. (high fire) ____ °F. or ____ °C
❐ External static pressure _________ in. W.C.
❐ Cycle by thermostat or operating control.
❐ Combustion readings:
Carbon Monoxide:______PPM
Carbon Dioxide:______%
_____________________________________________
__________________________________________________
__________________________________________________
Remarks:
34
GBNE-SVX001A-EN
ERTEK
INT
CM
VER
IFIE D
ENERGY
PERFORMANCE
VERIFIED
RENDEMENT
ENERGETIQUE
VERIFIE
Trane optimizes the performance of homes and buildings around the world. A business of Ingersoll Rand, the leader in
creating and sustaining safe, comfortable and energy efficient environments, Trane offers a broad portfolio of advanced
controls and HVAC systems, comprehensive building services, and parts. For more information, visit www.Trane.com.
Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.
© 2013 Trane All rights reserved
GBNE-SVX001A-EN 05 Nov 2013
We are committed to using environmentally
(NEW)
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14:22:10-06:00 Metadata Date : 2013:11:26 14:22:10-06:00 Creator Tool : Adobe InDesign CC (Windows) Instance ID : uuid:0234a017-3c80-4693-80b9-ae60f4e6dfd3 Document ID : xmp.id:b79b7b27-0f33-8044-a332-2609e3161c4e Rendition Class : proof:pdf Original Document ID : adobe:docid:indd:1d0b4152-8d81-11de-86a7-9e04c073e866 Derived From Instance ID : xmp.iid:d8f2d1f3-51ba-064c-9bea-1dd18c50dcf1 Derived From Document ID : xmp.did:8ac12334-dfae-ce43-9181-4568e949215c Derived From Original Document ID: adobe:docid:indd:1d0b4152-8d81-11de-86a7-9e04c073e866 Derived From Rendition Class : default History Action : converted History Parameters : from application/x-indesign to application/pdf History Software Agent : Adobe InDesign CC (Windows) History Changed : / History When : 2013:11:25 10:54:26-06:00 N Pages : 35 Format : application/pdf Title : GBNE-SVX001A-EN 11/05/2013 Tubular Gas Fired Blower Style Unit Heater / Installation, Operation and Maintenance Creator : Adobe InDesign CC (Windows) 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