Enerco HEATSTAR HS4000 NG, HEATSTAR HS4000 LP Operating Instructions And Owner's Manual
OPERATING INSTRUCTIO
NS AND OWNER’S MANUAL
READ INSTRUCTIONS CAREFULLY:
MODEL
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.
Read
HEATSTAR
BY ENERCO
MODEL
HS4000 NG/LP
NATURAL GAS/
DIRECT FIRED
WARNING:
— Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any
other appliance.
— Service must be performed by a qualified service agency.
This is a vented portable heater. It uses air (oxygen) from the area in which it is used. Adequate
combustion air and ventilation must be provided. Refer to page 5.
If the information in this manual is not followed exactly, afire or explosion
may result causing property damage, personal injury or loss of life.
ENERCO GROUP, INC., 4560 W. 160TH ST., CLEVELAND, OHIO 44135 • 800-251-0001
LPG
FIRED
HEATER
08/11 50401
WARNING :
YOUR SAFETY IS IMPORTANT TO YOU AND TO OTHERS,
SO PLEASE READ THESE INSTRUCTIONS BEFORE YOU
OPERATE THIS HEATER.
GENERAL HAZARD WARNING :
FAILURE TO C OMPLY WITH THE PRECAUTIONS AND
INSTRUCTIONS PROVIDED WITH THIS H EATER, CAN
RESULT IN DEATH, S ERIOUS BODILY INJURY AND
PROPERTY LOSS OR DAMAG E FROM HAZARDS OF FIRE,
EXPLOSION, BURN, ASPHYXIATI ON, CARBON M ONOXIDE 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.
WARNING :
NOT FOR HOME OR RECREATIONAL VEHICLE USE
WARNING :
FIRE, BURN, INHALATION, AND EXPLOSION HAZARD.
KEEP SOLID COMBUSTIBLES, SUCH AS BUILDING MA TERIALS, PAPER OR CARDBOARD, A SAFE DISTANCE
AWAY FROM THE HEATER AS RECOMMENDED BY TH E
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 CH EMICALS.
WARNING :
The State of California requires the following warning:
COMBUSTION BY-PRODUCTS PRODUCED WHEN US ING THIS PRODUCT CONTAIN CARBON MONOXIDE,
A CHEMICAL KN OWN TO THE STATE OF CALIFORNIA
TO CAUSE CANCER AND BIRTH D EFECTS (OR OTHER
REPRODUCTIVE HARM).
WARNING :
READ THE INSTRUCTI
MANUAL B EFORE USING THE APPLIANCE .
• DO NOT USE GASOLINE, NAPHTHA OR VOLATILE
FUELS.
• THE ELECTRICAL SYSTEM TO WHICH THE APPLIANCE
IS CONNECTED MUST C OMPLY WITH A LL SAFETY
REGULATIONS IN FORCE. A R ESIDUAL CURRENT
CIRCUIT BREAKER MUST B E PROVIDED ON THE MAIN
DISTRIBUTION BOARD.
• UNPLUG THE HEATER BEFORE ATTEMPTING ANY
SERVICE OR MAINTENANCE.
• ALWAYS CHECK THE POWER SUPPLY CABLE BEFORE
USE. IT MUST N OT BE BENT, CRUSHED, OR ANYWAY
DAMAG ED.
• THE POWER SUPPLY CABLE MUST BE REPLACED ONLY
BY QUALIFIED PERSONNEL.
• ONLY USE AN ORIGINAL H07RN-F POWER CABLE
WITH WAT ERPROOF PLUG.
• DO NOT TOUCH THE EXHAUST GAS OUTLET. DANGER
OF BURNS!
ONS
GIVEN IN THIS
IMPORTANT
Before using the heater, read and understand all instructions and
follow them carefully. The manufacturer is not responsible for
damages to goods or persons due to improper use of units.
CONTENTS
WARNINGS .................................................................................. 2-3
SPECIFICATIONS ........................................................................... 4
SAFETY DEVICES .......................................................................... 4
OPERATION ................................................................................. 5
MAINTENANCE ............................................................................ 5
VENTILATION ............................................................................... 5
TROUBLESHOOTING .................................................................... 6
WIRING DIAGRAMS ..................................................................... 7
PARTS LIST .............................................................................11-16
ENERCO GROUP, INC. |Indirect Fired Portable Heater Operating Instructions and Owner’s Manual
2
WARNING :
The heater is designed and approved for use as a construction heater in accordance with Standard
ANSI Z83,7 CGA 2.14.
CHECK WITH YOUR LOCAL FIRE SAFETY AUTHORITY IF YOU HAVE QUESTIONS ABOUT
APPLICATIONS.
Other standards govern the use of fuel gases and heat producing products in specific
applications.Your local authority can advise you about these.
WARNING :
This heater can be washed, provided that:
A. The heater is disconnected from the electrical supply.
B. All access panels are securely clos
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 andwhile in storage.
ed.
WARNING :
Proper gas supply must be provided to the inlet of the appliance.
Refer to rating plate for proper gas supply pressure.
Gas pressure in excess of maximum inlet pressure specified at the appliance inlet can cause fire or
explosions, leading to serious injury, death, building damage or loss of lives
Likewise, gas pressure below the minimum inlet pressure specified at the appliance inlet may cause
improper combustion,leading to asphyxation, carbon monoxide poisoning and therefore serious
injury or death to humans and livestock.
Position heater properly before use.
For either indoor or outdoor use adequate ventilation must be provided.
Minimum clearance from combustible materials and propane containers: 10 ft.
Do not operate heater with panels removed.
Not for use
To avoid injury from moving parts, disconnect all electrical power to equipment before opening
doors or removing panels.
with ductwork.
tock.
WARNING :
IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE CAN
CAUSE INJURY OR DEATH.
READ THE INSTALLATION, OPERATING AND MAINTENANCE INSTRUCTIONS THOROUGHLY
BEFORE INSTALLING OR SERVICING THIS EQUIPMENT.
WARNING :
RETAIN THIS INSTRUCTION FOR FUTURE REFERENCE. .
Operating Instructions and Owner’s ManualENERCO GROUP, INC. |Indirect Fired Portable Heater
3
TECHNICAL SPECIFICATIONS GE/N 250C GE/N 400C
Normal
Canada)
Normal
Canada)
Natural gas
L.P.G.
altitude 0 -
2,000 ft above
sea level
(U.S.A. and
Altitude 2,000
- 4,500 ft
above sea
level (Canada
only)
altitude 0 -
2,000 ft above
sea level
(U.S.A. and
Supply pressure [in WC]
Selector valve position
Heat input [BTU/h] 254.684 403.753
Manifold pressure [in WC] 4,33 4,40
Fuel consumption [CFH] 241,52 381,35
Heat input [BTU/h] 229.216 363.378
Manifold pressure [in WC] 4,11 4,18
Fuel consumption [CFH] 217,37 343,21
Supply pressure [in WC]
Selector valve position
Heat input [BTU/h] 241.413 394.134
Manifold pressure [in WC] 4,28 4,50
Fuel consumption [CFH] 88,98 145,12
min 7" w.c.
max 10" w.c.
min 8" w.c.
max 13" w.c.
min 7" w.c.
max 10" w.c.
min 8" w.c.
max 13" w.c.
Altitude 2,000
- 4,500 ft
above sea
level (Canada
only)
Air flow [cfm] 2.766 4.120
Power supply
Electric consumption
Ring nozzle [in] N. 16 holes x 0,079" N. 16 holes x 0,102"
Gas inlet connection thread 3/4" NPT 3/4" NPT
Air distribution
duct
Noise level at 1 m [dBA] 77 74
Heater
Max Static pressure [in] 0,60 0,56
Max length [ft] 50 50
Heat input [BTU/h] 217.272 354.721
Manifold pressure [in WC] 4,06 4,27
Fuel consumption [CFH] 80,08 130,61
Phase 1 1
Voltage [V] 120 120
Frequency [Hz] 60 60
[W] 500 900
[A] 5,0 8,5
Dimensions, L x W x H [in] 40,6 x 24,6 x 21,7 56,,1 x 29,5 x 25,7
Weight [lb] 101 192
Packaging
Dimensions, L x W x H [in] 42,3 x 21,9 x 29,45 57,7 x 24,4 x 32,6
Weight [lb] 134 225
Operating Instructions and Owner’s ManualENERCO GROUP, INC. |Indirect Fired Portable Heater
4
CONTROL PANEL - TABLEAU DE COMMANDE
89101312
11
14
abcdefabcde
f
4 1 6 3 2 7 5
Fig. 1
1 COMBUSTION CHAMBER
2 BURNER
3 DIFFUSION RING
4 FLAME GUARD SHIELD
5 COOLING FAN
6 IONIZATION ELECTRODE
7 IGNITION ELECTRODE
MANIFOLD ASSEMBLY
8 CONTROL FLAME ELECTRONIC RESET
9 HEATING SWITCH
10 ROOM THERMOSTAT PLUG
11 POWER CONTROL LAMP
12 POWER CORD
13 VENTILATION MODE SWITCH
14 PHASE / NEUTRAL LINE TEST PUSH BUTTON
GE/N 250 GE/N 400
a GAS SELECTOR VALVE
b MANIFOLD PRESSURE PORT (MANIFOLD)
c MANIFOLD PRESSURE REGULATOR
ENERCO GROUP, INC. |Indirect Fired Portable Heater Operating Instructions and Owner’s Manual
5
Fig. 2
d MAIN GAS VALVE
e INLET PRES
f SHUT OFF / FIRING VALVE
SURE PORT
DESCRIPTION
The hot air generator is designed for heating medium and large
ventilated premises, for which a fixed or mobile heating system is
required.
Heater is to be run on heating with natural gas or L.P.G. according
to gas supply pressures that must be in conformity with the national
laws.
Gases to be used are indicated in Tab. I together with the supply
pressures, the regulation of the gas valves group (burner pressure)
and gas flow.
Hea
ter is supplied after a complete functional test and it’s therefore
prearranged for one of the working gas indicated in Tab. I: 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 produ
thus making available 100% of the thermal power produced. The
environment must be suitably ventilated in order to ensure adequate
air circu-lation.
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 chambe
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
r exceeds the safety limit value, the air pressure
generator (cfr. “FAULTS, CAUSES AND REMEDIES”).
cts,
GENERAL ADVICES
Installation, setting and use of the heater must be effected in
accordance with the applicable regulations and laws relating to
machine use.
WARNING :
Check with your local fire safety authority if you have
questions about applications
• Make sure heater is inspected before each use, and at least
annually by a qualified service person.
• After use make sure the disconnecting switch is off.
When using any type of heater it is obligatory:
• not to exceed the maximum level of heat output of the furnace
(“TECHNICAL SPECIFICATION TABLE”);
• to make sure that there is adeguate air circulation and air supp
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
(“OBSERVED FAULTS, CAUSES AND REMEDIES”).
INSTALLATION INSTRUCTION
WARNING :
All the operations described in this paragraph must
be performed by professional and skilled personnel
only
The installation shall be in accordance with National Fuel Gas
Code ANSI Z223.1/NFPA 54 and with CAN1-B149.1 Installation
code.
An approved manual gas valve shall be provided by the installer.
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 power line of the generator must fea
earthlead and a residual current circuit breaker.
The supply cable must be connected to a switchboard
with sectioning switch.
Every heater is supplied along with the safety and control devices
which are indispensable to the correct functioning of the unit being
already electrically connected.
ture an
ly
Here are a few guidelines which shall be followed:
• The instructions in this manual are carefully followed;
• Minimum clearances from combustible material must be:
1 m (3 feet) from side and rea
0.7 m(2 feet) from ceiling
3 m (10 feet) on air outlet of heater.
• 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)
• Don’t install the heater in places where there may be a risk of fire
or explosion
• All fire prevention regulations must be adhered to.
• For air distribution use only original ductworks type M1 Spiraflex
from distributor and respect max leng
• The room or building which is being heated must be sufficiently
ventilated so that the heater has enough air to function properly;
• 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;
• The generator is placed near a power switchboard having
specifications in conformity with those declared;
• The unit is placed in a fixed position;
• The generator is regu
checked before being started up;
• Don’t let animals or children near the heater.
r (air inlet) of heater
th as declared in Tab. I
larly monitored during operation and
WARNING :
When installed, the appliance must be electrically
grounded in accordance with local codes, or in the
absence of local codes, with the National Elec
Code, ANSI/NFPA 70, and/or the CSA C22.1, Canadian
Electrical Code, if an external electrical source is
utilized.
The following operations must now be carried out:
• Plug in the power cord having read the rating plate that specify
electric supply characteristics.
• Connect accessories such as the room thermostat or clock to the
unit’s control panel with the thermostat receptacle.
Having completed all these operations check carefully that all
electrical connection
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 ramp” 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
Operating Instructions and Owner’s ManualENERCO GROUP, INC. |Indirect Fired Portable Heater
6
s correspond to the wiring diagram. When the
in charge of installation.
trical
1 Main gas pipe 3 Antivibrating coupling
2 Manual shut-off valve 4 Gas valves group
Fig. 3
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
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)
(c) the cylinder supply system shall be arranged to provide for
vapour withdrawal from the operating cylinder;
(d) the gas shall be turned off at the propane supply cylinder when
the heater is no
(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 Liquified 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).
appliance must be isolated from the gas supply piping system
The
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.
STARTUP
The heater is supplied after a complete funct
therefore prearranged for one of the gas (natural or L.P.G.) indicated
in Tab. I: an adhesive label applied on the manual gas selector valve
(Fig. 4) indicates the working gas (usually it’s natural gas). Should it
necessary to change the kind of gas (from natural gas to L.P.G or
viceversa) follow the detailed instructions indicated in section
“CHANGING TYPE OF GAS”.
Only when the heater has been prearranged according to the
proper working gas it will be possible to carry ou
operations:
• Leak away some gas from the feed pipe;
• Check that the pipe is gas proof;
• Open the gas stopcock 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 deratedy reducing the input for the
appropriate fuel in accordance with the rating plate man
pressure.
t in use;
Storage and
ional test and it’s
t the following
ifold
WARNING :
THE CONVERSION SHALL BE CARRIED OUT BY A
MANUFACTURER’S AUTHORIZED REPRESENTATIVE,
IN ACCORDANCE WITH THE REQUIREMENTS OF THE
MANUGFACTURER, 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 adiacent to the Rating Label:
THIS APPLIANCE HAS BEEN CONVERTED FOR USE
AT AN ALTITUDE OF _______
Orifice size: ______________________________________
Manifold pressure: ______________________________________
Input rate: ______________________________________
Date of conversion: ______________________________________
Type of fuel: ______________________________________
Converted by: ______________________________________
For installation in Canada at elevation above 4,500 feet above sea
level, consult Provincial or Territorial Authorities having jurisdiction.
CHANGING TYPE OF GAS
This operation may be carried out several times during the working
life of the
check the adhesive label attached to the manual gas selector valve
(a) in Fig. (2) to establish the original category of the gas and then
consult Tab. I to identify the supply pressure, the working pressure,
the use conditions of manual valve.
machine and not only at initial start-up. Therefore, first of all
To change kind of gas it is necessary (Fig. 2):
• to remove the sticker on the manual gas selector valve stating
the gas used at that time,
• to remove the screw under the sticker and
handle on the correct side according to the condition described in
Tab.I and by following instruction:
• After having moved the handle into the opposite position, put
again the fixing screw and a new sticker on it, stating the gas
which has to be used (a number of different stickers are supplied
with the machine)
____ FEET (ABOVE 2000 FEET)
turn the manual
Fig. 4
WARNING :
Burner pressure shall not be adjusted: the heater is
ready to run on the new gas
Should it necessary to check the burner pressure:
• connect a manometer to the pressure port (b) ,
• carry out the pressure reading on the manometer and turn the
pressure regulator (c) if necessary to ob
pressure value indicated in Tab. I
tain the correct burner
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”
• connect plug to receptacle
• push button (14): if it lights up, then reverse polatiry
WARNING :
If the correspondance of phase / neutral polarity is not
correct, the unit may stop in the reset mode.
HEATING MODE
ENERCO GROUP, INC. |Indirect Fired Portable Heater Operating Instructions and Owner’s Manual
7
Turning ON
• Make sure switch (9) 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 position “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
heater will now start and stop automatically.
• If after these operations, the generator does not work, refer to the
“FAULTS, CAUSES AND REMEDIES” paragraph and find the
cause.
Setting Post Ventilation Mode
By the switch (13) 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 (134) is on pos. “0” then postventilation lasts for 30
sec.
• when switch (13) is on pos. “1” then
Turning OFF
In manual operation turn switch (9) to “0” or turn thermostat control
knob off.
After switching off the machine, a post ventilation function works
according to the previous setting.
postventilation is continuous.
desired level: the
WARNING :
Finally, close the gas supply stopcock, close the shutoff valve (f) and turn off the sectioning switch (Fig. 1-
2).
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.
The hot air generators with wheels must be wheeled.
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 pe
rson.
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 stopcock 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
chamber and the whole burner head: any debris shall be taken away.
the combustion
VENTILATION MODE
To obtain the ventilation function only, make sure switch (9) is on
position “0” and then simply turn the switch (14
stop it, turn the switch “4” to position “O”.
) to position “1”. To
WARNING :
Whichever be the reason, the unit try to restart once.
If the cause of malfunction remain, the unit definitevely
stop and lamp (8) will light up
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”).
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 combustuion chamber (front side) and clean carefully inside the
combustion chamber and the whole burner head and electrode
WARNING
Operating the heater without the flame guard panel of combustuion
chamber (4) can cause the flame to work with risk to the health of
exposed persons (because of formation of carbon monoxide, CO)
and constituting a danger for the environment.
:
After cleaning, the flame guard panel of combustion
chamber (4) must be put back in place and secured
with the relative screws before operate the heater.
s.
ENERCO GROUP, INC. |Indirect Fired Portable Heater Operating Instructions and Owner’s Manual
8
TROUBLESHOOTING GUIDE
heater
FAULTS CAUSES REMEDIES
• Check power specifications
• The generator fails to start
• The generator stops and the indicator
light (1) comes on
• No power supply
• Main switch in wrong position • Select correct position
• Faulty operation of room thermostat
• Safety device (control unit, safety
thermostat, etc.) not reset after a repair
• The duct gives too much back pressure
and airpressure switch PA1 blocks the
• Gas pressure switch trips due to
interruption of gas flow (gas pressure
switch electric contact does not close
during operation)
• Micro-switch PAM intervention for fan
malfuction
• The flame sensor is not operating
correctly
• The safety thermostat trips due to
overheating of the combustion chamber
(the thermostat electrical contact does not
close during operation)
• Control unit trips due to irregular
operation of burner
• Faulty gas pressure switch
• Faulty micro-switch PAM
• Check power connections
• Check fuse integrity
• Check thermostat position
• Check thermostat operation
• Press button (1) on the control panel
• Reduce back pressure by straightening
the duct or by reducing duct length
• Make sure the gas supply hose has been
bled
• Check gas supply pressure
• Make sure the suction and feed grilles
are not blocked
• Make sure the fan is turning properly
• Check the electric motor and capacitor
and, if these are faulty, replace
• Remove the flame sensor and clean
• Makes sure the suction and feed grilles
are not blocked
• Make sure the environment is well
ventilated
• Make sure the warm air can exit freely
• Make sure the flow and pressure of the
gas are not too high
• Contact After-Sales Service
• Check the pressure switch and, if
necessary, replace
• Check the micro-switch and, if
necessary, replace
• Fan noise or vibrations
ENERCO GROUP, INC. |Indirect Fired Portable Heater Operating Instructions and Owner’s Manual
• Faulty electronic control unit • Check the unit and, if necessary, replace
• Faulty thermostat
• Foreign bodies on fan blades • Remove foreign bodies
• Little air circulation • Eliminate and obstacles to proper air flow
• Check the thermostat and, if necessary,
replace
9
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