Munters IS 40 Operating Instructions Manual

GB Operating Instructions
DE Bedienungshandbuch
FR Livret d’instruction
IT Manuale istruzioni

1. GENERAL SAFETY RULES

READ AND UNDERSTAND THE INSTRUCTION MANUAL BEFORE USING THE

HEAT RADIATOR AND KEEP IT SAFE FOR FUTURE REFERENCE.

THE UNIT MUST BE INSTALLED AND OPERATED FOLLOWING THE HEALTH,

SAFETY AND FIRE PREVENTION RULES IN FORCE IN THE COUNTRY OF
DESTINATION.

THE HEAT RADIATOR MUST BE USED ONLY ON LEVEL, FLAT FIRE-PROOF

FLOORS.
ENSURE A SAFETY DISTANCE OF 3 m FROM WALLS AND OBJECTS.

THE HEATER IS NOT SUITABLE FOR USE IN ROOMS CONTAINING EXPLOSIVE

DUST, SMOKE, COMBUSTIBLE VAPOURS, FLUIDS AND FLAMMABLE MATERIALS.

THE HEATER CASING BECOMES VERY HOT DURING OPERATION. DO NOT

TOUCH THE UNIT DURING OPERATION AND DURING THE COOLING TIME AFTER
SHUT OFF.

DUAL VOLTAGE UNITS: BEFORE CONNECTING TO MAINS, MAKE

SURE THAT THE VOLTAGE SELECTOR IS SET ON THE CORRECT SETTING.

2. DESCRIPTION OF FUNCTIONING

A pump sucks fuel from the tank and drives it to the burner under pressure. Fuel is sprayed
and atomized by the nozzle and then ignited by burner ignition device. A built-in radial blower
provides the proper combustion air flow. Air and fuel drops mix and form a combustible
mixture. The flames heat up the front plate and guard, thus releasing heat by radiation.

The metal front guard acts as a catalyzer, it complete combustion of hydrocarbons and
reduces emission of pollutants. To direct the heat to a special point or object, the radiator can
be tilted up to 20° upwards or downwards.

3. APPLICATION FIELDS

 Heating working areas in large, well ventilated rooms or outdoors heating.
 Dust-free drying varnished parts.
 Drying and de-icing construction areas, concrete, walls, etc.
 Defrosting machines and buildings.

4. INSTALLATION

Fill the oil tank with clean, water-free Diesel oil.
Connect to a 230V 50Hz earthed electrical outlet complying with local regulations.

Dual voltage model: connect either to a 230-240V 50Hz or 110V 50Hz electrical outlet.
Set the correct voltage on voltage selector.

COLD START: if ignition is difficult at extremely low temperature, check tank, connections

and filter for paraffin formation, and mix Diesel oil with 10% kerosene.

a) INDOOR OPERATION, NO PEOPLE STAYING IN THE HEATED ROOM.

Ensure that sufficient air is available for combustion through windows and doors. The heated
volume (m3)/heat output (kW) ratio must be at least 10:1. People must be properly advised not
to stay permanently in the heated room.

b) INDOOR OPERATION, PEOPLE STAYING IN THE HEATED ROOM.

Ensure that a good natural supply of ventilation air is available as follows:
The heated volume (m3)/heat output (kW) ratio must be at least 30:1.
Air circulation must be ensured through windows and doors or permanent openings near floor
and ceilings, whose total open area (m2) is at least 0.003 times the total heat output (kW).
The volume concentration of O2 (oxygen) in the heated room must always be above 17%.

HEAT RADIATION

1. Loosen the clamping levers on both sides.

2. Position the heat radiator as required.

3. Tighten the clamping levers.

5. START UP

1. To START: set switch to ON

2. To STOP: set switch to OFF



3 m

min.

Ignition does not take place immediately but after a preheating time followed by a prepurge
time of about 30 s.
If no fuel flows to the burner within 4 s, the heater goes automatically to lock-out mode.
In this case, check and eliminate the possible causes of lock-out, then press the RESET
button to restart the heater.
If the heater does not start, please check that the front radiator is not directly exposed to
intense lights (sun, lamps, etc.) as they may interfere with the operation of the burner control
unit. Should this occur, position the unit properly or protect it from excessive light.

NEVER SWITCH THE HEATER OFF BY DISCONNECTING IT FROM MAINS. SET

SWITCH TO “OFF” POSITION BEFORE!

6. CLEANING AND SERVICING

UNPLUG THE HEATER BEFORE CLEANING OR SERVICING THE HEATER.

ENSURE THAT THE UNIT IS CHECKED BY A QUALIFIED TECHNICIAN AT LEAST ONCE
A YEAR.
MAIN FILTER: replace fuel filter cartridge if you see water or dirt particles in the filter glass
and at least every 200-300 operating hours.

FUEL: empty the tank and fill with clean fuel if the fuel is dirt or mixed with water.

FOR FURTHER DETAILS ABOUT BURNER SERVICING SEE THE INSTRUCTION
MANUAL FOR THE OIL BURNER (INCLUDED).

7. TROUBLE-SHOOTING

ALL ELECTRICAL SERVICING MUST BE CARRIED OUT ONLY BY A QUALIFIED

ELECTRICIAN.

DISCONNECT THE HEATER FROM MAINS BEFORE ANY SERVICING/REPAIR.

Malfunction Possible Causes Remedy
The heater does not start,
when the switch is set to ON

a) no electrical supply
b) defective ON/OFF switch
c) burner lock-out

a) check mains, switch and
fuses
b) replace ON/OFF switch

d) defective motor/capacitor c) reset oil burner; if lock out

repeats, reset after 4-5 min
d) check motor/capacitor,

replace if necessary
The heater starts but a
malfunction immediatley
occurs

a) no fuel in the tank
b) air in the fuel circuit
c) oil filter clogged
d) oil burner lock-out

a) refill oil tank

b) check oil circuit connections

c) replace filter cartridge

d) see operating instructions

for burner
The heater operates but the
combustion is smoky

a) blocked nozzle
b) filter is clogged
c) water in the fuel
d) paraffin formation in the
main filter
e) not enough fuel in the tank
f) air suction in the oil line
g) defective solenoid valve

a) replace nozzle

b) clean filter

c) fill tank with clean fuel

d) replace oil preheater

e) fill tank completely

f) tighten connections in the oil

circuit

g) see operating instructions

for burner
The burner fan goes on
running although the
appliance has been
switched off and cooled
down

a) defective postventilation
relay

a) replace postventilation relay

8. TECHNICAL SPECIFICATIONS

Fuel Type Diesel Oil
Heat Output 38,3 kW (Hs)
Fuel Consumption 3 kg/h
Power 185 W
Voltage 230 V 50 Hz ; 110/230 V 50 Hz (versione

bitensione)
Protection Degree IP 44
Weight (full tank) 98 kg
Fuel Pressure 9,0 bar
Nozzle 0.85 gph 80°H
Air lock adjustment 2,75

9. WIRING DIAGRAMS

230 V - 50 Hz MODELS

see BURNER INSTRUCTION MANUAL

230V/110V – 50Hz DUAL VOLTAGE MODELS

1. ALLGEMEINE SICHERHEITSVORSCHRIFTEN

LESEN SIE DEN INHALT DER BEDIENUNGSANLEITUNG AUFMERKSAM UND
HEBEN SIE DIESE ZUM SPÄTEREN NACHSCHLAGEN AUF.

DAS GERÄT DARF NUR GEMÄSS DER HERRSCHENDEN GESETZE UND

SICHERHEITSNORMEN AUFGESTELLT UND VERWENDET WERDEN UND
MUSS DIE GESUNDHEITS- UND FEUERVORSCHRIFTEN DES
BESTIMMUNGSLANDES BEACHTEN.

DAS GERÄT DARF NUR AUF STABILEN, FLACHEN UND NICHT BRENNBAREN

OBERFLÄCHEN AUFGESTELLT WERDEN. EINEN SICHERHEITSABSTAND
VON 3 m VON WÄNDEN UND GEGENSTÄNDEN EINHALTEN.

DAS GERÄT DARF NICHT IN RÄUMEN VERWENDET WERDEN, IN DENEN

EXPLOSIVE PULVER, RAUCH, ENTFLAMMBARE DÄMPFE, FLÜSSIGKEITEN
UND BRENNMATERIAL VORHANDEN SIND.

DIE OBERFLÄCHE DES GLÜHKÖRPERS ERREICHT SEHR HOHE

TEMPERATUREN. DAS GERÄT WÄHREND DER INBETRIEBNAHME UND AUCH
ENTSPRECHENDE ZEIT NACH DEM ABSCHALTEN UND WÄHREND DER
ABKÜHLZEIT NICHT BERÜHREN.

BEVOR SIE DAS GERÄT AN DIE ELEKTRISCHE LEITUNG ANSCHLIESSEN,
VERGEWISSERN SIE SICH, DASS DER SCHALTER AUF DER GEWÜNSCHTEN

SPANNUNG POSITIONIERT IST (AUSFÜHRUNG BITENSION).

2. FUNKTIONSWEISE



3 m

min.