Heatstar HS250AG, HS400AG, HS408AG User Manual

OPERATING INSTRUCTIONS

AND OWNER’S MANUAL

READ INSTRUCTIONS CAREFULLY: Read and follow all instructions. Place instructions in a safe place

for future reference. Do not allow anyone who has not read these instructions to assemble, light, adjust or operate the heater.

HS250AG

HS400AG

Model #

HS250AG HS400AG HS408AG

HS408AG

WARNING:

— Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any

other appliance. — An LP cylinder not connected for use shall not be stored in the vicinity of this or any other appliance. — WHAT TO DO IF YOU SMELL GAS

• Do not try to light appliance.

• Extinguish any open flame.

• Shut off gas to appliance. — Service must be performed by a qualified service agency.

This is an un-vented gas-fired portable heater. It uses air (oxygen) from the area in which it is used. Adequate combustion and ventilation must be provided. Refer to pages

If the information in this manual is not followed exactly, a fire or explosion may result, causing property damage, personal injury or loss of life.

LANGUAGES INCLUDED

•ENGLISH

•FRENCH

2017 CB HEAT STAR, Inc., 4560 W. 160TH ST., CLEVELAND, OHIO 44135 • 866-447-2194

WARNING:

YOUR SAFETY IS IMPORTANT TO YOU AND TO OTHERS,

SO PLEASE READ THESE INSTRUCTIONS BEFORE YOU OPERATE THIS HEATER.

WARNING:

NOT FOR HOME OR RECREATIONAL VEHICLE USE

WARNING:

GENERAL HAZARD WARNING:

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 INSTRUCTIONS MANUAL, LABELS, ETC. CONTACT THE MANUFACTURER.

THE STATE OF CALIFORNIA REQUIRES THE FOLLOWING WARNINGS:

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.

WARNING: Combustion by-products produced when using this product contain carbon monoxide, a chemical

known to the State of California to cause cancer and birth defects (or other reproductive harm).

WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or

other reproductive harm.

CONTENTS

WARNINGS ..........................................................................2

SPECIFICATIONS ...................................................................3

OPERATING PRECAUTIONS ..................................................4

SAFETY PRECAUTIONS .........................................................4

INSTALLATION .....................................................................5

ELECTRICAL CONNECTIONS .................................................5

GAS LINE OPERATION ..........................................................6

CONTROL PANEL ..................................................................7

FUEL CONVERSION .............................................................9

OPERATING INSTRUCTIONS .................................................8

MAINTENANCE ....................................................................9

TROUBLESHOOTING ......................................................10-11

WIRING DIAGRAM .........................................................12-13

PARTS LISTS AND EXPLODED VIEWS .............................. 14-15

WARRANTY INFORMATION ...............................................16

Forced-Air Agricultural Construction Heater Operating Instructions and Owner’s Manual

SPECIFICATIONS

MODEL# (Stock#)

SUPPLY PRESSURE

RING NOZZLE (INCHES)

HEAT INPUT (BTU/HR)

MANIFOLD PRESSURE

FUEL CONSUMPTION (CFH)

GAS INLET

NOISE LEVEL AT 1m

SUPPLY PRESSURE

RING NOZZLE (INCHES)

HEAT INPUT (BTU/HR)

MANIFOLD PRESSURE

FUEL CONSUMPTION (CFH)

GAS INLET

NOISE LEVEL AT 1m

HS250AG (F130105) HS400AG (F130110) HS408AG (F130115)

Natural Gas

Min 8" W.C - Max 10" W.C Min 8" W.C - Max 10" W.C Min 8" W.C - Max 10" W.C

N. 16 Holes x 0.102" N. 16 Holes x 0.138" N. 16 Holes x 0.138"

250,000 400,000 400,000

2,61 2,38 2,38

233.51 355.52 355.52

3/4" NPT 3/4" NPT 3/4" NPT

77 (dBA) 74 (dBA) 74 (dBA)

L.P.

Min 8" W.C - Max 13" W.C Min 8" W.C - Max 13" W.C Min 8" W.C - Max 13" W.C

N. 12 Holes x 0.079" N. 12 Holes x 0.098" N. 12 Holes x 0.098"

250,000 400,000 400,000

3.64 4.01 4.01

85.94 141. 95 141. 9 5

3/4" 3/4" 3/4"

77 (dBA) 74 (dBA) 74 (dBA)

ELEC. SUPPLY (VOLTS/Hz/PHASE)

CONTINUOUS AMPS

120V-60HZ- 1Ø 120V-60HZ-1Ø 208V-60HZ-1Ø

5.0 AMPS 9.5 AMPS 5.0 AMPS

WAT TS

LENGTH X WIDTH X HEIGHT (in)

45.1" X 23.2" X 17.4" 46.7" x 26.9" x 21.1" 46.7" x 26.9" x 21.1"

WEIGHT (LBS)

CLEARANCE TO COMBUSTIBLES

MODEL

HS250AG

HS400AG

TOP SIDES BACK OUTLET

3'ft- 1M 3'ft- 1M 3'ft- 1M 10'ft- 3m

ELECTRICAL

530 W 1000 W 105 0 W

DIMENSIONS

101 123 12 3

HS408AG

3'ft- 1M 3'ft- 1M 3'ft- 1M 10'ft- 3m

** Heater shall not be directed toward any propane-gas container within 6 m (20 feet) and minimum

clearances from gas cylinder must be 3 m (10 feet)**

Forced-Air Agricultural Construction Heater

Operating Instructions and Owner’s Manual

OPERATING PRECAUTIONS

This is a propane or natural gas, direct-fired, forced air heater. It's intended use is primarily temporary heating of buildings under construction, alteration or repair.

The hot air generator is designed for heating medium and large ventilated premises, for which a fixed heating system is required.

Heater is to be run on heating with natural gas or LPG according to gas supply pressures that must be in conformity with the national laws.

Heater is supplied after a complete functional test and it’s

therefore prearranged for one of the working gas indicated in SPECIFICATION: an adhesive label applied on the gas selector valve (a) indicates the selected gas.

To change the type of gas, follow the detailed instructions

indicated in section “CHANGING TYPE OF GAS”.

The heater is of the direct combustion type. The air is heated by the energy developed during combustion and then conveyed to the environment to be heated together with the combustion products, thus making available 100% of the thermal power produced. The environment must be suitably ventilated in order to ensure adequate air circulation.

In the event of serious malfunction various safety devices (electronic flame control unit, overheating thermostat, air pressure switch) trigger turning off the heater .

The electronic flame control unit monitors if the flame is irregular or goes out, the safety thermostat triggers when the temperature in the combustion chamber exceeds the safety limit value, the air pressure switch will cut in if the airflow is insufficient.

In each of the said cases the unit stops according to the

procedure described in “OPERATING INSTRUCTIONS”.

In each of the said cases the lamp (8) will light up and the heater will stop working. The heater can be restarted only by pressing the reset button (8). Nonetheless, the cause that triggered the safety device should always be carefully analyzed and resolved before restarting the generator (cfr.

“FAULTS, CAUSES AND REMEDIES”).

SAFETY PRECAUTIONS

1. Check the heater thoroughly for damage. DO NOT operate a damaged heater.

2. DO NOT modify the heater or operate a heater which has been modified from its original condition.

3. Use only fuel types for which the heater has been certified.

4. Minimum clearances from combustible material must be: 1 m (3 feet) from side, ceiling, floor and rear (air inlet) of heater 3 m (10 feet) on air outlet of heater.

5. Heater shall not be directed toward any propane-gas container within 6 m (20 feet) and minimum clearances from gas cylinder must be 3 m (10 feet)

6. Don’t install the heater in places where there may be a risk of fire or explosion

7. All fire prevention regulations must be adhered to.

8. The heater is not duct able and shall not be connected to any duct work for air distribution.

9. The room or building which is being heated must be sufficiently ventilated so that the heater has enough air to function properly;

10. The air suction and/or supply pipes are not blocked in any way, there are not sheets or covers resting on the machine or walls and bulky objects near the heater;

11. The generator is placed near a power switchboard having specifications in conformity with those declared;

12. The unit is placed in a fixed position;

13. The generator is regularly monitored during operation and checked before being started up;

14. Don’t let animals or children near the heater.

15. Make sure heater is inspected before each use, and at least annually by a qualified service person.

16. After use make sure the disconnecting switch is off.

17. When using any type of heater it is obligatory: not to exceed the maximum level of heat output of the furnace

(“SPECIFICATION TABLE”);

18. Make sure that there is adequate air circulation and air supply to the heater and that nothing is obstructing the aspiration and expulsion of air; movement of air may be obstructed in various ways including placing covers or other objects on the heater or positioning the heater too near a wall or other large object. If the airflow is not adequate, the combustion chamber will overheat and the overheat thermostat will turn the burner off

19. Use only the electrical power specified. The electrical connection and grounding must comply with National Electrical Code - ANSI/NFPA 70 (USA) and CSA C22.1 Canadian Electrical Code, Part 1 (Canada).

20. Use only in accordance with local codes or, in the absence of local codes, with the Standard for the Storage and Handling of Liquefied Petroleum Gases ANSI/NFPA 54 and CSA B149.1, Natural Gas and Propane Installation Code.

Forced-Air Agricultural Construction Heater Operating Instructions and Owner’s Manual

INSTALLATION

All the operations described in this paragraph must be performed by professional and skilled personnel only.

An approved manual gas valve shall be provided by the installer.

The space heater can be installed suspended from the ceiling or a top a support base.

Ceiling Mount(Fig 1)- These heaters include eye bolt support hooks. It may be hung from the ceiling with metal chain or rope of appropriate load capacity and length. Use the packaged factory eyebolts attach to the four suspension points.

Fig. 1

Warning:

Make sure that the ropes and/or chains form an

angle not more than 5° with vertical to the ceiling, that the ropes do not cross, and that a different rope

is used for each hook.

Warning:

In case of installation in greenhouses, mechanical ventilation shall be interlocked to the heater operation or permanent openings shall be fixed for ventilation air.

ELECTRICAL CONNECTIONS

Warning:

The equipment is fitted with a temporary power cable, used for the final control test at factory.

Warning:

The temporary power cord must be removed and replaced with a proper power cord whose type and dimension shall be in accordance with national

rules.

Warning:

The power line of the generator must feature an earth lead and a residual current circuit breaker. The supply cable must be connected to a switchboard with sectioning switch.

Warning:

When installed, the appliance must be electrically grounded in accordance with local codes, or in the absence of local codes, with the National Electrical Code, ANSI/NFPA 70, and/or the CSA C22.1, Canadian Electrical Code, if an external electrical

The space heater can be installed on a support base (Fig. 2), which must be:

• Stable, horizontal, broader in bas than heater length

and width.

• Made of non-combustible material

• Able to hold 150 lbs.

Fig. 2

source is utilized.

Only for 120 V models, the electrical power cable must be connected in conformity to the polarity specified on the main terminal board of the electrical panel: phase (L) and neutral (N).

Warning:

Only for 120 V models, if polarities L and N are incorrect, the space heater may stop a few seconds after it is switched on for the first time.

If any room thermostat or other accessories are connected to the system (such as the timer for example) this must be done by connecting the electrical cable to the thermostat plug (10):

• Take the plug (c) out of the power switchboard, open it

and remove the electrical jumper between terminals 2 and 3 of the plug.

• Connect the thermostat electrical cable to terminals 2

and 3 of the thermostat plug (c);

• Close the plug again and plug it back into the power

switchboard.

Forced-Air Agricultural Construction Heater

Operating Instructions and Owner’s Manual

Having completed all these operations check carefully that all electrical connections correspond to the wiring diagram. When the heater is first turned on you must check that the fan does not use more current than the maximum permitted limit.

GAS LINE CONNECTIONS

The connection to the gas feed pipe, whose sizes must correspond to the kind of system to be made, must be

carried out by placing the“gas valve”as indicated in Fig. 3:

the gas pipe, the interception tap and the anti-vibration joint are not supplied with the heater and they must be arranged by the person in charge of installation.

Fig. 3

1: Filter-pressure regulator or filter 2: Anti vibration joint 3: Manual shut-off valve 4: Gas valve

In case of connection of heater to natural gas, the installation shall conform with local codes or, in the absence of local codes, with the National Fuel Gas Code ANSI Z223.1/NFPA 54 and the Natural Gas and Propane Installation Code, CSAB149.1.

In case of connection to a propane supply cylinder:

(a) the installation must conform with local codes or, in

the absence of local codes, with the Standard for the Storage and Handling of Liquified Petroleum Gases, ANSI/NFPA 58 and the Natural Gas and Propane Installation Code, CSA B149.1.

(b) to determine size and capacity of the cylinder(s) and

for any specific requirements consult your LP gas supplier. In any case propane tank should not be lower than 100 lb (90 liters)

for vapour withdrawal from the operating cylinder;

(d) the gas shall be turned off at the propane supply

cylinder when the heater is not in use;

(e) when the heater is to be stored indoors, the

connection between the propane supply cylinder and the heater must be disconnected and the cylinders removed from the heater and stored in accordance with Standard for the Storage and Handling of Liquefied Petroleum Gases, ANSI/NFPA 58 and CSA B149.1, Natural Gas and Propane Installation Code.

The appliance and its individual shut-off valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psi (3.5 kPa).

The appliance must be isolated from the gas supply piping system by closing its individual manual shut-off valve during any pressure testing of the gas supply piping system at test pressures equal or less than 1/2 psi (3.5 kPa).

A minimum 1/8” NPT plugged tapping, accessible for

test gauge connection, must be installed immediately upstream of the gas supply connection to the appliance.

The heater is supplied after a complete functional test and

it’s therefore prearranged for one of the gas (natural or

LPG) indicated in Specification: an adhesive label applied on the gas valve (Fig. 3) indicates the working gas (usually

it’s natural gas). Should it be necessary to change the kind

of gas (from natural gas to LPG or vice versa) follow the

detailed instructions indicated in section “Fuel Conversion"

Only when the heater has been prearranged according to the proper working gas will it be possible to carry out the following operations:

• Leak away some gas from the feed pipe;

• Check that the pipe is gas proof;

• Open the gas stop on/off valve and start the hot air

generator;

For installation in the U.S.A. at elevation above 2,000 feet (610 m), the appliance shall be derated 4 per cent for each 1,000 feet (305 m) of elevation above sea level.

For installation in Canada at elevation above 2,000 feet to 4,500 feet above sea level, the heater is derated reducing the output for the appropriate fuel in accordance with the rating plate manifold pressure.

Forced-Air Agricultural Construction Heater Operating Instructions and Owner’s Manual

CONTROL PANEL

b c d

8 9 10

1 COMBUSTION CHAMBER

2 BURNER

3 DIFFUSION RING

4 FLAME GUARD SHIELD

5 COOLING FAN

6 IONIZATION ELECTRODE

7 IGNITION ELECTRODE

8 CONTROL FLAME RESET BUTTON

9 HEATING SWITCH

10 ROOM THERMOSTAT PLUG

FIG. 4

1 6

FIG. 5

11 POWER CONTROL LAMP

12 SAFETY THERMOSTAT LAMP

13 VENTILATION MODE SWITCH

14 SAFETY THERMOSTAT RESET BUTTON

15 CABLE FASTENER FOR POWER CORD

¬¬¬

MANIFOLD ASSEMBLY

a SHUT OFF / FIRING VALVE b MANIFOLD PRESSURE PORT (MANIFOLD) c MANIFOLD PRESSURE REGULATOR d MAIN GAS VALVE

FIG. 6

Operating Instructions and Owner’s Manual

Forced-Air Agricultural Construction Heater

OPERATING INSTRUCTIONS

Warning

Any time the power cord of the heaters is connected to a receptacle check the polarity of power supply:

• Check switch (9) and (13) are on “0” (REFER to FIG. 5)

• Connect plug to receptacle

• If lamp (#14 FIG. 5) lights up, then reverse polarity

Warning

If the correspondence of phase / neutral polarity is not correct, the unit may stop in the reset mode.

HEATING MODE Turning ON:

• Make sure switch (#9 FIG. 5) is on “0”;

• Power the heater by means of the sectioning switch on

the switchboard;

• If the unit is operated manually (without any thermostat

or any other control device) turn the switch (9) to posi-

tion “1”. The burner starts up, the combustion chamber

heats up and then the fan starts;

• If the unit operates automatically (being connected to

any thermostat or any other control device) turn the

switch (9) to position “1” and set the room thermostat

at the desired level: the heater will now start and stop automatically.

• If after these operations, the generator does not work, refer to the “FAULTS, CAUSES AND REMEDIES” para-

graph and find the cause.

SETTING POST VENTILATION MODE:

By the switch (#13 FIG. 5) on control panel, select the

post-ventilation mode, that is the time the fan goes on blowing air when unit is switched off:

• When switch (#13 FIG. 5) is on pos. “0” then post ventilation lasts for 30 sec.

• When switch (#13 FIG. 5) is on pos. “1” then post ventilation is continuous.

Turning OFF:

In manual operation turn switch (#9 FIG. 5) to “0” or turn

thermostat control knob off.

After switching off the machine, a post ventilation function works according to the previous setting.

Warning

Finally, close the gas supply on/off valve, close the shut-off valve (f) and turn off the sectioning switch

(Fig. 5).

VENTILATION MODE

To obtain the ventilation function only, make sure switch (#9 FIG. 5) is on position “0” and then simply turn the switch

(#13 FIG. 5) to position “1”. To stop it, turn the switch to position “O”.

Warning

Whichever the reason, the unit only tries to restart once. If the cause of malfunction remain, the unit definitively stop and lamp (8# FIG. 5) will light up.

The heater can be restarted only by pressing the reset

button (#8 FIG. 5). Nonetheless, the cause that triggered

the safety device should always be carefully analyzed and

resolved before restarting the generator (cfr.“FAULTS, CAUSES AND REMEDIES”).

TRANSPORT AND HANDLING:

Warning

Before moving the unit:

• Stop the machine as indicated in the “STOP”

paragraph;

• Disengage the power supply by removing the plug from the power socket;

• Fully unscrew the fitting connecting the gas hose

pipe to the heater;

• Wait for the heater to cool down.

Fuel Conversion

Warning:

The conversion shall be carried out by a manufacturer’s authorized representative, in accordance with the requirements of the manufacturer, provincial or territorial authorities having jurisdiction and in accordance with the requirements of the can/cga-b149.1 Or can/cgab149.2

Installation codes.

A conversion label shall be applied adjacent to the Rating Label:

THIS APPLIANCE HAS BEEN CONVERTED FOR USE

AT AN ALTITUDE OF ___________ FEET (ABOVE 2000 FEET)

Orifice size: ______________________________________ Manifold pressure: ______________________________________ Input rate: ______________________________________ Date of conversion: ______________________________________ Type of fuel: ______________________________________ Converted by: ______________________________________

This operation may be carried out several times during the working life of the heater and not only at initial start-up. First of all refer to SPECIFICATIONS to identify the reference category for natural gas or propane gas type. For each gas category the supply pressure, the working

pressure and the arrangement of the diffusion ring (#3

FIG. 4) are stated. To convert from one type of gas to another proceed as follows:

•If stated in Tab.I, change the diffusion ring (#3 Fig. 4):

•Remove the upper body of the heater;

•Unscrew and remove the ionization electrode (#6 FIG. 4)

Forced-Air Agricultural Construction Heater Operating Instructions and Owner’s Manual

• Undo the screws that secure the combustion head (3) to the combustion chamber (#1 FIG. 4)

• Remove the three screws on the burner head plate and

change the diffusion ring securing it in such a way that the ignition electrode is equidistant between the two subsequent holes;

• Calibrate the gas pressure switch on the gas valve group (#4

Fig.3):

• Regulate the gas pressure switch to a value equal to 80% the

supply pressure;

• Regulate the pressure regulator for the gas valve group

(Fig.3); to the burner pressure stated in SPECIFICATIONS.

• Connect a gauge to the pressure intake (1) upstream and a

second gauge to the pressure intake downstream (2) of the valve group;

• Start the heater and take the reading off the 1st supply

pressure gauge and if necessary adjust the pressure regulator

(#3 FIG. 6) for the gas supply system until the correct supply

pressure shown in SPECIFICATIONS is reached.

• Take a reading off the 2nd working pressure gauge and if

necessary use a screwdriver to adjust the pressure of the

gas valve group (#4 FIG. 3) to restore the working pressure

shown in SPECIFICATIONS.

• Apply the adhesive label with the words “SET UP FOR …”

corresponding to the type of fuel and the chosen category on the gas valve group

clean carefully inside the combustion chamber and the whole burner head and electrodes.

This heater can be washed, provided that: A. The heater is disconnected from the electrical supply. B. All access panels are securely closed. C. Water spray nozzle shall not discharge within 6 feet of the

heater.

D. The heater is not reconnected to electrical supply until

thoroughly dried. Improper cleaning of the heater can cause severe personal injury or property damage due to water and/or cleaning solutions: A. In electrical components, connections and wires causing

electrical shocks or component failure. B. On gas control components causing corrosion which can

result in gas leaks and fire or explosion from the leak. The hose assembly must be protected from the traffic, building materials and contact with hot surfaces both during use and while in storage.

Warning

After cleaning, the flame guard shield must be screwed securely back in place before operating heater.

Operating the heater without the flame guard shield can result in combustion producing CO (carbon monoxide) which can pose danger to those exposed to this to this environment.

MAINTENANCE

To regulate operation of the unit, the fans, combustion chamber and the burner must be at least annually inspected and periodically cleaned by a qualified service person.

Warning

Before performing any maintenance operation:

• Stop the machine as indicated in the “STOP”

paragraph;

• Disengage the power supply by removing the plug from the power socket;

• Close the gas supply stop on/off valve and shut-off valve (f);

• Wait for the heater to cool down.

During cleaning any foreign bodies must be removed from the fan suction grille. To access the burner, remove the flame guard panel (4) by removing the four screws and clean carefully inside the combustion chamber and the whole burner head: any debris shall be taken away.

Warning

Do not direct jets of compressed air towards the air

pressure points near the main fan: the air pressure

switch could be permanently damaged.

Cleaning of the burner shall be regularly performed by qualified service person. To access the burner, remove the flame guard panel of combustion chamber (front side) and

Forced-Air Agricultural Construction Heater

Operating Instructions and Owner’s Manual

TROUBLESHOOTING

SYMPTOMS CAUSE SOLUTIONS

The heater does not start:

Lamp is off

The heater does not start:

Lamp is on

The heater works erratically and the burner goes on and off alternately: Gas flow insufficient

The heater does not work:

Lamp flashes

The heater does not work:

Lamps and are on.

No power supply

Switch (#9 FIG. 5) in wrong

position

Defective room thermostat

Gas pressure switch tripped

due to no gas or insufficient

pressure

Voltage control has tripped due to insufficient electrical supply (V < 95V)

Manual reset safety thermostat has tripped due to excessive overheating of combustion chamber

• Check functioning and position of switch

• Check the mains

• Check power connections

• Check the fuse

Select correct position

• Check that thermostat connection plug is inserted

• Check the electrical connections of the thermostat

• Check thermostat setting and correct it

• Check functioning of thermostat

• Check that gas feed pipe has been bled

• Check gas feed pressure

• Check and clean gas filter.

• Clean and recalibrate the burner.

• The heater restarts automatically when sufficient voltage is restored

(V>95V)

• Check the power line if the heater starts and stops several times

• Check the power line if the heater does not start and remains in safety

stop

• Check that the fan motor starts correctly and is not obstructed

• Check that the fan motor is not burned out or that the motor condenser is

not broken

• Check burner calibration

The heater does not work:

Lamp is steady on

Number of flashes of lamp (8)

No flame during ignition cycle

Micro switch with blade has tripped (electrical contact remained open)

at start of ignition cycle

Parasite flame detected in pre-wash phase dur-

ing ignition cycle

Micro switch with blade has tripped (electrical contact has opened)

during ignition cycle

LAUNCH THE SELF-DIAGNOSIS PROCEDURE

PUSH BUTTON (8) FOR 12 SECONDS AND RELEASE:

THE BUTTON LAMP FLASHES WITH 2 TO 7 FLASHES

• Check gas pressure at burner

• Check and clean gas filter

• Check that ionization probe is not discharging to ground

• Check ionization probe connection cables (they must not discharge to

ground)

• Check wire connection of pressure switch

• Check pressure switch and replace if necessary

• Check that there is no remaining gas in the combustion chamber

• Check that ionization probe is not discharging to ground

• Check ionization probe connection cables (they must not discharge to

ground)

• Check wire connection of pressure switch

• Check that burner motor and fan are not blocked or broken; replace if

necessary

• Check that smoke exhaust chimney is not partially or totally obstructed

• Check pressure switch and replace if necessary

Forced-Air Agricultural Construction Heater Operating Instructions and Owner’s Manual

+ 22 hidden pages