Sure Flame SE400 User manual

PRODUCTS
October 24, 2011 Rev: 1.1 974-9909
SERVICE AND MAINTENANCE MANUAL
PLEASE RETAIN FOR FUTURE REFERENCE
A Division of Haul-All Equipment Ltd.
4115 - 18 Avenue North
Lethbridge, Alberta T1H 5G1
www.sureflame.ca
CONSTRUCTION HEATERS
SE400 & SE400T

Page 2 P/N:974-9909 SE400 & SE400T Manual Rev. 1.1
SE400 CONSTRUCTION HEATER
Failure to comply with the precautions and instructions
provided with this heater, can result in death, serious
bodily injury and property loss or damage from hazards
of fire, explosion, burn, asphyxiation, carbon monoxide
poisoning, and/or electrical shock.
Only persons who can understand and follow the
instructions should use or service this heater.
If you need assistance or heater information such as
an instruction manual, labels, etc. Contact the
manufacturer.
Fire, burn, inhalation, and explosion hazard. Keep solid
combustibles, such as building materials, paper or
cardboard, a safe distance away from the heater as
recommended by the instructions. Never use the heater
in spaces which do or may contain volatile or airborne
combustibles, or products such as gasoline, solvents,
paint thinner, dust particles or unknown chemicals.
Not for home or recreational vehicle use
WARNING
WARNING
GENERAL HAZARD WARNING

SE400 & SE400T Manual Rev. 1.1 P/N:974-9909 Page 3
READ THIS
WARNING
FIRST !
The heater is designed and approved for use as a construction heater
under CSA 2.14a-2007. The primary purpose of construction heaters
is to provide temporary heating of buildings under construction,
alteration, or repair and to provide temporary emergency heat. Prop-
erly used, the heater provides safe economical heating. Products of
combustion are vented into the area being heated.
The heater is not designed as an Unvented Gas Fired Room Heater
under ANSI-Z21.11.2 and should not be used in the home.
ANSI A119.2(NFPA 501C)-1987 Recreational Vehicle Standard
prohibits the installation or storage of LP-Gas containers even
temporarily inside any recreational vehicle. The standard also prohib-
its the use of Unvented Heaters in such vehicles.
Gas inspection authorities in Canada require that the installa-
tion and maintenance of heaters and accessories be accom-
plished by qualified gas fitters.
Installation must comply with local codes, and with the Natural
Gas and Propane Installation Code CSA-B149.1.
We cannot anticipate every use which may be made for our heaters.
CHECK WITH YOUR LOCAL FIRE SAFETY AUTHORITY IF YOU
HAVE QUESTIONS ABOUT LOCAL REGULATIONS.
Other standards govern the use of fuel gases and heat producing
products in specific applications. Your local authority can advise you
about these.

Page 4 P/N:974-9909 SE400 & SE400T Manual Rev. 1.1
FOR YOUR SAFETY
DO NOT USE THIS HEATER IN A SPACE WHERE
GASOLINE OR OTHER LIQUIDS HAVING
FLAMMABLE VAPOURS ARE STORED OR USED.
SE400/SE400T CONSTRUCTION HEATER
CONTENTS
Specifications ........................................................................................... 5
Installation ............................................................................................... 6
Installation Using A Propane Supply Tank ................................................ 7
Installation For Natural Gas Applications ................................................. 7
Operating Instructions .............................................................................. 8
Preventative Maintenance ......................................................................... 9
Troubleshooting ...................................................................................... 10
SE400 Connection Wiring Diagram ........................................................ 12
SE400 Ladder Wiring Diagram ............................................................... 13
SE400T Connection Wiring Diagram ...................................................... 14
SE400T Ladder Wiring Diagram ............................................................. 15
SE400 Heater Parts ............................................................................... 16
LPG - Propane Fuel Vaporization Rate ................................................... 18

SE400 & SE400T Manual Rev. 1.1 P/N:974-9909 Page 5
SPECIFICATIONS
Model No. SE400/SE400T Construction Heaters
Gases: Natural or Propane
Capacity: 400,000 Btu/h (120 kW) maximum
Orifice Size: 11/64” (x6)
Inlet Air Flow: 1150 cfm (545 l/s) at 20°C (68°F)
Outlet Air Flow: 1800 cfm (850 l/s) at 186°C (367°F)
Electrical Rating: 120 volts, 60 Hz., 7.5 amps, single phase
Minimum Temperature: -30°C (-22°F)
Maximum Duct Length: 32’ (9.8 m)
Duct Diameter: 16” or 18”
Gas Supply:
Inlet Pressure Manifold Pressure
Max. W.C. Min.W.C. Max.W.C.
14" (3500 Pa) 8.0" (2000 Pa) 5.0" (1250 Pa)
(Minimum inlet pressure is for purpose of input adjustment)

Page 6 P/N:974-9909 SE400 & SE400T Manual Rev. 1.1
INSTALLATION
The Sure Flame Model SE400 Construction Heater is a direct fired gas heater
intended to be used primarily for the temporary heating of buildings under
construction, alteration, or repair. Since all the products of combustion are
released into the area being heated, it is imperative that adequate ventilation
is provided.
1 Install the heater in a horizontal position at least 10 feet (3m) from any
LP-gas container. Allow the following clearances from any combustible
materials:
Front Outlet: 12 feet (3.7 m) Sides: 2 feet (0.6 m)
Intake: 2 feet (0.6 m) Top: 5 feet (1.5 m)
Front Outlet must not be directed at any LP-gas container within 20 feet
(6 m).
The heater is designed for use with up to 32 feet of 16” or 18” ductwork.
Ductwork must be able to handle temperatures of up to 200°C (392°F).
Only duckwork supplied by the manufacture shall be use with this
heater.
Also make sure that no flammable vapours are present in the space where
the heater is being used.
2 When connecting the heater to a natural gas or propane supply line ensure
that the pressure at the heater inlet is within the specified range. Excessive
pressure (over 1/2" psi) will damage the controls and void the warranty.
3 Visually inspect the hose assembly and ensure that it is protected from
traffic, building materials, and contact with hot surfaces. If it is evident that
there is excessive abrasion or wear, or the hose is cut, it must be replaced.
4 After installation, check the hose assembly for gas leaks by applying a
water and soap solution to each connection.
5 Connect the heater to an adequate 120 volt electrical supply as specified
on the rating plate. For protection against shock hazard the supply cord
must be plugged directly into a properly grounded three-prong receptacle.
Note: Low Voltage (long extension cord or too many items on circuit) will
shorten motor life.

SE400 & SE400T Manual Rev. 1.1 P/N:974-9909 Page 7
INSTALLATION USING A
PROPANE SUPPLY TANK
1 When installing the heater for use with propane gas, set the gas selector
valve to “Propane” and lock in position.
2 Arrange the propane supply system to provide for vapour withdrawal from
the operating container. Supplying liquid propane to the heater is danger-
ous and will damage the components. Another regulator must be
installed on the heater to reduce the pressure from this regulator to a
maximum inlet pressure of 1/2 psi.
3 Ensure that for the surrounding temperature the size and capacity of the
propane supply container is adequate to provide the rated Btu/h input to
the heater.
4 Turn off the propane supply valve at the container when the heater is not
in use.
5 The installation must conform with local codes and with CSA-B149.1
Natural Gas and Propane Installation Code.
6 When the heater is to be stored indoors the propane container must be
disconnected from the heater and the container moved away and stored
in accordance with the above national standards.
INSTALLATION FOR
NATURAL GAS APPLICATIONS
1 When installing the heater for use with natural gas, set the gas selector
valve to the “Natural” position.
2 A regulator must be installed on the heater to ensure that the pressure to
the heater does not exceed 1/2 psi inlet pressure.
3 The installation of this heater to a natural gas supply must conform with
all applicable local codes and with CSA-B149.1 Natural Gas and Propane
Installation Code.

Page 8 P/N:974-9909 SE400 & SE400T Manual Rev. 1.1
HEATER OPERATING INSTRUCTIONS
1) Set GAS SELECTOR VALVE to gas being used. The conversion shall
only be done by the owner or lessor of the equipment.
NOTE: When using Propane Gas the SELECTOR VALVE must be locked
in position.
2) Ensure valve is in the "ON" position.
3) Connect Power - 120 volt supply. Open gas supply.
4) Set switch to "HEAT" mode.
5) Push "START" button.
6) If equipped with a thermostat, set thermostat to desired temperature.
To stop, push the "STOP" button and turn gas off. Fan will continue operating
for 60 second.
The appliance area should be kept clear and free from combustible materials,
gasoline, and other flammable vapours and liquids.
Ensure that the flow of supply air and combustion gases is not obstructed.
The installation and operation of the heater shall comply with the code
requirements specified by the authorities having jurisdiction.
General criteria for the use of construction heaters may be found in the
applicable sections of the Natural Gas and Propane Installation Code CSA-
B149.1.
THE INSTALLATION AND MAINTENANCE OF THE
HEATER MUST BE ACCOMPLISHED BY A
QUALIFIED SERVICE PERSON.
FAN OPERATING INSTRUCTIONS
1) Set switch to "FAN" mode.
2) Push "START" button.
To stop push the "STOP" button.

SE400 & SE400T Manual Rev. 1.1 P/N:974-9909 Page 9
PREVENTIVE MAINTENANCE
Sure Flame construction heaters are built to withstand the rigours of operating
on construction sites, in mining applications, and in a multitude of other
locations where heaters are used. To maintain the reliable performance
required it is necessary to do a certain amount of regular maintenance.
PERIODIC MAINTENANCE:
Weekly:
Gas Hose Check for cracks or damaged connectors
Obstruction of Air flow Clean & remove debris
Monthly:
Cords & Connectors Check for cracks, exposed wires & dirt in
electrical connectors. Clean with water and
dry out before connecting power.
Physical Integrity Check for damage to body, louvers and
inlet screens that may impact combustion
quality.
End of season:
Manifold Pressure Check for nominal pressure specified in
specification label. Adjust regulator
pressure if necessary.
Fan Blade Remove dirt buildup. Replace damaged or
unbalanced blades.
Strainer Inspect and clean if necessary.
Combustion Chamber &
Flame Rod
Remove nose cone and inspect inside for
integrity. Remove accumulated carbon
deposits with a wire brush. Clean flame
rod with solvent or emery cloth. Inspect
insulator for cracks. Check flame rod tip for
1/8” gap to ground. Install nose cone.
Gas leaks Using soapy water or gas leak detector
check all gas connections for leaks
Air Tubes Verify that air tubes are not blocked and
that they are securely attached.
Wiring &
Drain holes
Check the electrical box for loose or
overheated wires and connectors. Using a
dry cloth or compressed air clean bottom
drain holes if necessary. Check for
integrity of cover seal.

Page 10 P/N:974-9909 SE400 & SE400T Manual Rev. 1.1
TROUBLESHOOTING CHART
Motor does not start
Symptom Problem
No electrical supply
Fuse or transformer failure (motor starts when
manual button on motor relay is pressed)
Start switch failure. (After engaging power relay
test button green light turns on)
Power relay failure
Stop switch failure
Motor relay failure. Motor won’t start (starts after
manual button is pressed in motor relay).
Motor failure
Thermostat failure (starts OK with Jumper Plug)
Thermostat and jumper not connected
Green light is on. Motor does not start in
Heat mode, but does start in Fan mode.
Error light on flame controller is on or
flashing
Flame control failure
Motor starts, but no flame
Symptom Problem
Flame control failure
Flame rod wet
Manual valve closed
Limit switch failure. No continuity between
terminals
Air proving switch failure, air switch set too high,
or restricted duct switch set too low; Tubes or air
restrictor blocked or in negative pressure
position
Solenoid valve failure
Second stage regulator set too high, solenoid
valve will not open
Upstream regulators installed backwards
Flame control failure
Poor quality power (such as from a generator).
Dirty signal or wrong hertz
Motor running in reverse (incorrect wiring on
replacement)
Ignitor failure. Cracked ceramic or Incorrect gap
to burner plate (should be 1/8")
Burner not grounded
Hose diameter too small and/or hose too long,
blocked hose
Low inlet pressure
Gas selector valve set to wrong fuel
Second stage regulator set too low
Main regulator setting too low
No green power light (after pressing start
button)
Green light is on. Motor does not start in
Heat mode, but does start in Fan mode.
No error lights on flame controller
Green light comes on when start button
pressed, but goes off when released
Green light is on. Motor does not start in
either Heat or Fan mode
Blower Motor starts, but burner does not
ignite. Flame controller error light flashes 2
times. No gas odor at heater outlet.
Blower Motor starts, but burner does not
ignite. Flame controller error light flashes 3
times. No gas odor at heater outlet.
Blower Motor starts, but burner does not
ignite. Flame controller error light flashes 3
times. Gas odor at heater outlet.

SE400 & SE400T Manual Rev. 1.1 P/N:974-9909 Page 11
TROUBLESHOOTING CHART (cont.)
Heater starts but then fails
Symptom Problem
Flame rod failure
Flame control failure
Changeover valve set to propane when
connected to natural gas Low heat, High CO ;
Random shutdown;
Second stage regulator set too low
Main regulator setting too low
Strainer plugged or dirty
Outlet duct too long or obstructed
Limit switch failure
Heater sensitive to wind gusts Restricted duct switch set to too low a pressure
Nose cone gap too small
Changeover valve set to natural gas when
connected to propane.
Connected to liquid propane
Main regulator setting too high
Blower motor overheats in function
(Thermal protection in motor); Random
shutdown
Poor quality power (such as from a generator).
Dirty signal or wrong hertz
Other Problems
Symptom Problem
Motor relay failure
Start switch failure
Normal function; Heater stops only if
unplugged
Stop switch failure
Flame interrupts in function. Frost on
propane tank
Propane tank too small to vapourize fast enough,
tank freezes
Burner unstable Nose cone gap too big
Irregular flame in combustion chamber.
Excessive carbon deposit in combustion
chamber; B urner unstable
Burner orifices plugged or dirty
Gas odor when no call for heat. Solenoid valve leak
Excessive heater noise. Vibrations Damaged or unbalanced fan blade
Operates in only heater mode, or only fan
mode
Toggle switch failure
Air switch failure
Restricted duct switch set to too high a pressure
Motor runs as soon as heater is plugged
in.
Excessive Flame; Heater stops after a few
minutes of function (High Limit Switch
opens)
Normal function-when inlet obstructed
flame shooting out (High Limit Switch
opens)
Heater starts, but fails after running for a
period of time
Heater starts, but flame goes out about 4
seco nds af ter ignit ing

Page 12 P/N:974-9909 SE400 & SE400T Manual Rev. 1.1
Note:: All wires 18 Ga STR TEW 600Vunless otherwise specified.
SE400 Connection Wiring Diagram
1
NC2
NO
P
COM
RESTRICTED
DUCT SW.
+-
1
NC
2
NO
P
COM
AIR
PROVING
SW.
+
-
WHT
HEAT 3
2
1
FAN
24
SP
G
BL
1
2
3
4
5
6
7
8
9
HV
FENWAL 35-61
10
11
B.GND
V2 (G)
R (24)
L1
IND
NC
V1
Psw
TH
120VAC
24VAC
Transformer
C O I L
NO
NO
LOGIC RELAY
01
2468
N O
START
N C
STOP
Ground
Screw
C O I L
NO
NO
BLOWERRELAY
0
1
2468
COM
24VAC
Gas Valve
COM
M
HiLi
M
14Ga HV
Spark
Plug
Fuse 2A
GRN 16Ga
GRN
BRN
BRN
BRN
BRN
BRN
BRN
ORG
ORG
YEL
YEL
YEL
YEL
BLK
BLK
PRL
PRL
PRL
PRL
PRL
PRL
BLU
BLU
BLU
BLU
BLU
RED
RED 250°C
RED 250°C
GRN 250°C
WHT
WHT
WHT
Error
LED
NO
COM
L- L+
NC
COM
Rev 1.1
RED
BLK 16Ga
WHT 16Ga
BLK
BLK 16Ga
WHT 16Ga

SE400 & SE400T Manual Rev. 1.1 P/N:974-9909 Page 13
SE400 Ladder Wiring Diagram
TH
V2
P.Sw
V1
L1
GND
IND
24VAC
Supply
Thermostat
Input
Pressure
Switch
Valve
Neutral
Valve
Power
Inducer
Output
Hi Voltage
Output
Burner
Ground
24VAC
R
HV
NC
Alarm
M
Blower Motor
Air Proving Sw.
Burner
Ground
Igniter
Gas Valve
Solenoid
24VAC
Inducer Power
Supply
Hi Limit Sw.(NC)
Blower Relay
(24VAC Coil)
Power Relay
(24VAC coil)
START
(GREEN)
Power ON Lamp
(Start Button)
2
1
X1 X2
01
0
1
68
86
24
P1
COM
M
120/24VAC
Transformer
24VAC
COM120V
Fuse
N
L1
HEAT
3
21
FAN
NC
STOP
(RED)
NO
NO
34
Power Relay
(contacts)
Blower Relay
contacts
Duct Restricting Sw.
P2
NC NO

Page 14 P/N:974-9909 SE400 & SE400T Manual Rev. 1.1
Note:: All wires 18 Ga STR TEW 600Vunless otherwise specified.
SE400T Connection Wiring Diagram
1
NC2
NO
P
COM
RESTRICTED
DUCT SW.
+-
1
NC
2
NO
P
COM
AIR
PROVING
SW.
+
-
WHT
HEAT
3
2
1
FAN
24
SP
G
BL
1
2
3
4
5
6
7
8
9
HV
FENWAL35-61
10
11
B.GND
V2 (G)
R (24)
L1
IND
NC
V1
Psw
TH
120VAC
24VAC
Transformer
COIL
NO
NO
POWERRELAY
01
2468
NO
START
NC
STOP
2
1
X2X1
3
4
Ground
Screw
COIL
NO
NO
BLOWERRELAY
0
1
2468
BROWN
(24VAC)
BLUE
(Call for
Heat)
GREEN
(GROUND)
Thermostat Plug
COM
24VAC
Gas Valve
COM
M
HiLi
M
14Ga HV
Spark
Plug
Fuse 2A GRN 16Ga
GRN
GRN
BRN
BRN
BRN
BRN
BRN
BRN
ORG
ORG
YEL
YEL
YEL
YEL
BLK
PRL
PRL
PRL
PRL
PRL
PRL
BLU
BLU
BLU
BLU
BLU
RED
RED250°C
GRN250°C
BLU
BRN
WHT
Error
LED
Rev 1.1
RED250°C
RED
ORG
BLK 16Ga
WHT 16Ga
WHT 16Ga
BLK 16Ga

SE400 & SE400T Manual Rev. 1.1 P/N:974-9909 Page 15
SE400T Ladder Wiring Diagram
TH
V2
P.Sw
V1
L1
GND
IND
24VAC
Supply
Thermostat
Input
Pressure
Switch
Valve
Neutral
Valve
Power
Inducer
Output
Hi Voltage
Output
Burner
Ground
24VAC
R
HV
NC
Alarm
M
Blower Motor
Restricted Duct Sw.
Burner
Ground
Igniter
Gas Valve
Solenoid
24VAC
Inducer Power
Supply
Hi Limit Sw.(NC)
Thermostat
Jumper
Blower Relay
(24VAC Coil)
Power Relay
(24VAC coil)
START
(GREEN)
Power ON Lamp
(Start Button)
2
1
X1 X2
01
0
1
68
86
24
1P
13
COM
M
120/24VAC
Transformer
24VAC
COM120V
Fuse
N
L1
HEAT
3
21
FAN
NC
STOP
(RED)
NO
NO
34
Power Relay
(contacts)
Blower Relay
contacts
Air Proving Sw.
P2
NC NO

Page 16 P/N:974-9909 SE400 & SE400T Manual Rev. 1.1
30
31
SE400 & SE400T HEATER PARTS DIAGRAM
12
3
4
6
5
7
8
9
10
11
12
13
1415
16
18
19 20
25 21 22 23
24
26
27
28
29
32 40
41
42
43
44
39 38
36
3534
33
17
37
47
46
45

SE400 & SE400T Manual Rev. 1.1 P/N:974-9909 Page 17
Ref Part No. Description Ref Part No. Description
1 SE-4091 Top Cover 25 SE-4712 Gas Line Assembly 2 9843 Limit Switch 26 9834 Flare Adapter 3 SE-4018 Nose Cone 27 SE-4718 Gas Selector Valve with Handle 4 SE-4725 Duct Adapter 28 SE-4510 Inlet Coupling 5 SE-4507 Combustion Chamber 29 9830 Gas Valve 6 SE-4151 Bulkhead Fitting 30 SE-4715 Thermostat Assembly with Cord 7 SE-4027 Front Leg 31 2453 Thermostat 8 SE-4090 Bottom Panel 32 9872 Relay 9 1525 Fan Blade 33 4510 24V 40VA Transformer
10 9827 Motor 34 9883 Fuse Holder 11 6119 Semi-Pneumatic Wheel 35 9884 Fuse, 2A/250V, Fast Acting 3AG 12 SE-4721 Wheel Assembly 36 SE-4732 Restricted Duct Switch 13 SE-4726 Blower Plate Assembly 37 SE-4731 Air Proving Switch 14 SE-4509 Motor Mount 38 9823 Terminal Block 15 SE-4508 Control Box 39 9828 Flame Control 16 SE-4728 Right Inlet Panel 40 9879 Start Switch 17 SE-4716 Thermostat Jumper Plug 41 9880 Stop Switch 18 SE-4723 Control Box Lid w/Jumper Plug 42 9881 Heat / Fan Switch 19 SE-4727 Left Inlet Panel 43 9882 Switch Gasket 20 SE-4730 Electrode Assembly 44 WRS-163 Thermostat Receptacle 21 9833 Flare Elbow 45 SE-4145 Air Tube Damper 22 9832 Bowed Snap Ring 46 1707 Air Tube 23 SE-4078 Burner Washer 47 1181 Barb Y Fitting 24 9831 Burner Head 48 SE-4521 18" duct adapter (not shown)

Page 18 P/N:974-9909 SE400 & SE400T Manual Rev. 1.1
+40 F. +30 F. +20 F. +10 F. 0 F. -10 F -20 F. -30 F.
150 214,900 187,900 161,800 148,000 134,700 132,400 108,800 107,100
(600)
250 288,100 251,800 216,800 198,400 180,600 177,400 145,800 143,500
(1000)
500 478,800 418,600 360,400 329,700 300,100 294,800 242,300 238,600
(2000)
1000 852,800 745,600 641,900 587,200 534,500 525,400 431,600 425,000
(4000)
MAXIMUM BTU CONTENT
(PROPANE)
The following table shows the maximum BTU's that a cylinder contains.
CYLINDER SIZE BTUCONTENT
100 pound 2,159,100
250 gallon USA 22,922,500
500 gallon USA 45,845,000
1000 gallon USA 91,690,000
CAUTION: In extremely cold weather it is impossible to
completely empty a propane cylinder.
PRESSURE & FLOW EQUIVALENTS
1 Std. Atmosphere = 14.73 lb./sq. in. = 1.014 bar
1" Water Column (W.C.) = 0.58 oz./sq. in. = 2.49 millibar
11" Water Column = 0.4 lb./sq. in.= 27.39 millibar
1 lb./sq. in. (psig) = 27.71" W.C. = 0.0689 bar
1" Mercury = 0.49 psig = 33.86 millibar
1 Std. Cubic Ft./Hr. = 2,500 BTU/Hr. = 0.02832 cu. m/hr.
1 BTU/Hr. = 0.2931 Watts
LPG - PROPANE FUEL
VAPORIZATION RATE
The following chart shows the amount of BTU's that various sizes of tanks will
produce on the average at specific temperatures and regular atmospheric
conditions.
Tank Size
Gallons
(Pounds)
Maximum intermittent withdrawal rate (BTU/hr) without tank frosting*
if lowest outdoor temperature (average for 24 hours) reaches.
* Frosting on the outside of the tank acts as an insulator, reducing the
vaporization rate.