Silvan Selecta DH30 User manual

Instruction Manual
MANDH REV A 06/05/20
DIESEL HEATERS 30 & 50KW
DH30, DH50
VICTORIA (HEAD OFFICE)
Telephone: [phone]
Fax: [phone]
www.silvan.com.au
NEW ZEALAND
Hamilton, New Zealand
Telephone: [phone]
Fax: [phone]
www.silvannz.co.nz
SILVAN AUSTRALIA PTY. LTD.
ABN 48 099 851 144

Warning: Service must be performed by a qualified service agency.
Warning: Unvented portable heaters use air (oxygen) from the area in which it is used.
Adequate combustion and ventilation air must be provided. Refer to instructions.
Warning: Do not store or use petrol or other flammable vapors and liquids in the vicinity of
this or any other appliance.
Warning: Not for home or recreational vehicle use.
Warning: Your safety is important to you and to others, so please read these instructions
before you operate this heater.
Warning: The electrical system to which the appliance is connected must comply with current
legislation. Installation requires a residual current circuit breaker (rccb) in the main electrical
distribution board.
Warning: Unplug the appliance before performing any maintenance operations.
Warning: Always check the power cable before using the appliance. It must not be bent, taut,
stretched, crushed or any way damaged.
Warning: The power cable must be replaced by qualified personnel only. Use an original
power cable only with a 3-pin approved plug.
Warning: The front outlet is very hot during operation. Do not touch! Burn danger.
Safety Instructions
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.
Failure to comply with these warnings may result in serious injury or death.
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 petrol, solvents, paint thinner, dust
particles or unknown chemicals.
Direct-fired heaters may cause carbon monoxide (CO) poisoning when incorrectly
used, e.g. indoors without adequate air circulation, or if not properly working. CO
poisoning may lead to death.
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.

Product Description:
Diesel direct-fired mobile/portable space heater with open combustion chamber.
Technical Specifications:
Model
DH30
DH50
Heat Input [kW] *
30
50
Air Flow Rating [m³/h]
720
1100
Fuel Type
Diesel - Kerosene
Diesel - Kerosene
Fuel consumption [kg/h]
2.4
4.0
Fuel Nozzle Size [gph]
0.80
1.20
Voltage [V/Hz]
AC220-240V/50
AC220-240V/50
Air Pressure Setting [bar]
0.31
0.45
Current Rating [A]
1.1
1.5
Electrical Power [W]
230
340
Fuse Rating
T3.15A
T3.15A
Dimensions
Net Weight (kg)
21
27
Length (mm)
880
1090
Width (mm)
456
490
Height (mm)
590
585
Tank Capacity (l)
38
56
Operating range (h)
~13
~12
Standard Accessories
Fuel gauge
yes
yes
Handle
1
1
Ambient thermostat
built-in
built-in
Malfunction detection light
built-in
built-in
* Based on Gross Calorific Value [Hrs]
Specifications

Extract the heater from its carton. If the unit is anyhow damaged, do not use it and contact your
dealer.
DH30 & DH50:
The following accessories are supplied in the shipping carton.
Figure 1
To assemble the heater, proceed as follows (see Fig. 1):
1. Insert the Wheel Shaft (J) to the corresponding hole of Feet Pipe (E)，insert the Cotter (K) to the
corresponding holes; put Plain Washer (I) to the two sides of shaft, slide the Wheel (H) over the
Wheel Shaft (J)，screw the Nut (G) to fix the wheel on the shaft.
2. Put the heater body on the feet pipe assembly, make sure the 4 holes of Handle (A) point towards
the corresponding 4 holes on the feet pipe, respectively.
3. Using the Screw (B), Spring Washer (C), Plain Washer (D) and nut 4 to fix the feet pipe assembly
and handle to the tank.
Pos.
Description
Qty
A
Handle
1
B
Screw
6 or 8
C
Spring washer
6 or 8
D
Plain washer
6 or 8
E
Feet pipe
1
F
Nut M5
6 or 8
G
Nut M12
2
H
Wheel
2
I
Plain washer
ø12
2
J
Wheel shaft
1
K
Cotter
2
Assembly Instructions

Warning: Position the heater on a flat, level, non-flammable, solid surface.
Warning: Direct-fired heaters are intended for use in outdoor open areas or in indoor well-
ventilated areas. For indoor use, provide permanent ventilation openings of at least 25
cm²/kW, equally distributed between floor and high level, with a minimum of 250 cm².
DH30
DH50
Minimum Opening Size
800 cm²
1250 cm²
•Only install the heater in normal upright position.
•Do not place the heater near walls, corners or low ceilings.
•Do not place the heater below a socket outlet.
•Do not place the heater on moving vehicles or where it can tip over.
•Keep the heater away from flammable, combustible, explosive or corrosive materials.
•Keep the heater away from curtains or similar materials that could block the air inlet and outlet.
•Never block or restrict the air inlet and outlet for any reason.
•Keep the power cable away from heat sources, sharp edges, cutting and moving parts.
•Do not expose directly to the weather or to excessive humidity.
•Do not place the heater in the immediate surroundings of a bath, shower or swimming pool.
•Follow general and special fire safety regulations in force in all fields of applications. In any case
ensure the following minimum safety clearances from materials or objects in the surroundings
of the heater:
oSide: 0.6 m
oAir Inlet Side: 1 m
oTop: 1.5 m
oHot Air Outlet Side: 3 m
oFloor: 0 m
•Floors and ceilings must be made of fireproof materials in the place where the heater is operated.
•Do not connect direct-fired heaters to air ducts.
Installation Instructions

1. Start-Up
Fill tank with clean fuel. Only use Diesel. The fuel gauge on top of the tank allows to check fuel level.
Connect the power cord plug to a 230 V 50 Hz earthed electrical supply system. Earthing is
mandatory.
Models DH30:
a) When complete “start-up” above, the power indicator will light, the display window will show
the ambient temperature value.
b) Push the power switch to “on” position.
c) If the thermostat control knob setting temperature is higher than the ambient temperature, the
electrodes start sparking and after 7 seconds, the heater starts.
d) If the thermostat control knob setting temperature is lower than the ambient, turn thermostat
control knob to desired temperature setting, the electrodes start sparking and after 7 seconds, the
heater starts.
Model DH50
a) When complete “start-up” above, the left display window shows “--”, the right display window
shows ambient temperature value.
b) Push the power switch to “on” position.
c) The default temperature setting is 20℃, be showed on the left display window. If the ambient
temperature is lower than default temperature, the electrodes start sparking, after 7 seconds, the
heater starts.
d) If the ambient temperature is higher than default temperature, turn thermostat control knob
to desired temperature, the electrodes start sparking, after 7 seconds, the heater starts.
COLD START-UP: At low temperature keep the air vent hole (see Fig. 5) closed by a finger during
ignition to make start-up easier.
Figure 5
ABNORMAL OPERATION: In case of malfunction (flame failure, reduced air flow, bad combustion,
etc.) the heater stops, and the indicator light starts FLASHING (THE LOCK-OUT MODE code will be
showed on the display window).
Operating Instructions

2. Manual Reset/Restart
If the heater is in lock-out mode, check and remove the cause of lock-out before restarting the
heater. To reset, turn the ON/OFF switch to 0 and then again to I. In case of repeated malfunction,
call technical service. Turning the thermostat control knob will NOT reset the heater.
3. Shutdown
Move switch to "OFF" (O) position. Unplug the unit when not used for a long time.
Warning: Never disconnect the heater from mains to stop it while in operation. Always allow
the cooling sequence to be completed (DH50), otherwise the residual heat could damage
internal components.
Warning: Do not cover the heater. Do not block the air inlet and outlet.
Warning: The heater outlet is very hot during operation and after use. Do not touch! Use
personal protecting equipment if needed.
Warning: Children should be supervised to ensure that they do not play with the appliance.
Warning: The appliance is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge.
Warning: Unplug the heater before moving it. Never pull the cable to unplug or move the unit.
Warning: Do not leave the heater unattended when in use.
Warning: Never use the appliance with wet hands or when either the heater or the power cable
is wet.
Warning: If the supply cable is damaged, it must be replaced by the manufacturer, by a service
agent or a similar qualified person.
Operating Instructions (cont.)

Regularly wipe the enclosure using a soft sponge or cloth. For very dirty parts, use a sponge wetted
with lukewarm water and a mild detergent, then dry using a clean cloth.
Keep air inlet and fan free from dust and dirt. To clean inner parts, gently blow compressed air
through air inlet.
Regularly inspect the power cable: if worn, cracked or damaged have it replaced by technical service.
Before storing the heater, make sure it is perfectly cool and dry. Cover the unit with a plastic bag,
put it in its packing box and store it in a dry, ventilated place.
Warning: Before starting any maintenance task, shut down, unplug and let the heater cool
down for at least 15 minutes.
Warning: Do not attempt any electrical repair yourself. If the heater needs service or repair,
contact a qualified technician.
Warning: Do not use a faulty unit unless a qualified technician has inspected and repaired it.
Warning: When cleaning, make sure that water does not enter the unit.
Warning: Do not open the enclosure to clean the inner parts. Do not spray water into the
heater.
Warning: Never use solvents, petrol, toluene and similar aggressive chemicals to clean the
heater.
The following checks BY QUALIFIED PERSONNEL ONLY are recommended before every seasonal
use:
Nozzle:
Carefully unscrew nozzle from nozzle fitting. Blow compressed air through nozzle orifice to free it
from dirt. Replace nozzle if necessary.
Air Filters:
Clean air filters. Remove filter End Cover (11), wash Air Intake Filter (10) using a light detergent and
dry it thoroughly before re-installing. Replace Air Delivery Filter (9) once a year (Fig.2)
Figure 2
Cleaning, Maintenance & Storage

Ignition Electrodes:
Clean, adjust and if necessary, replace ignition electrode. For electrode gaps see Fig. 3-4 (dimensions
in mm).
Figure 3 Figure 4
Compressor Pressure Adjustment (Fig. 5):
Warning: The compressor pressure is factory set and must be checked and adjusted by
qualified technicians only. Tampering with the unit may be dangerous.
Remove pressure gauge cap. Connect a pressure gauge on the pressure measuring port on the rear
guard. Start heater and read air pressure value. If necessary, adjust pressure to the correct value
turning the adjusting screw (the air vent hole in the adjusting screw middle) clockwise to increase,
anticlockwise to decrease the pressure:
Figure 5
Model
Air Pressure (bar)
DH30
0.31
DH50
0.45
Electrical:
Inspect cables, electrical parts and connections.
Cleaning, Maintenance & Storage

Wiring Diagram for DH30
Wiring Diagram for DH50
Wiring Diagrams

Problem
Cause
Solution
Motor does not start
(E1 display on the screen)
No power or low voltage
Check power line and voltage
Check fuse and replace if necessary
Faulty or damaged power cord
Contact service agent
Faulty motor/capacitor
Contact service agent
Lock-out of appliance due to
previous overheating
Detect the cause of overheating. Shut
appliance down. Check air inlet and
outlet. Wait some minutes and restart
the appliance
(E2 display on the screen)
The temperature probe is
faulted or the connector for
temperature probe is loosen
Contact service agent
Motor runs but the
heater does not ignite
and locks out after a
short time
(E1 display on the screen)
Empty fuel tank, dirty or
wrong fuel
Remove wrong or dirty fuel. Fill tank
with clean diesel or kerosene
Fuel filter clogged
Clean fuel filter
Air leaks in oil line
Check hoses, tighten connections
Burner nozzle clogged
Clean nozzle blowing compressed air
Flames come out of fuel
outlet
(E1 display on the screen)
Insufficient airflow into
combustion chamber
Check air inlet, fan, motor
Compressor pressure too high
Check air pressure –contact service
agent
Heater stops during
operation
(E1 display on the screen)
The room temperature set on
room thermostat has been
reached
Normal operation –to start turn the
temperature control knob clockwise
on a higher setting
Heater stops during
operation
(E1 display on the screen)
Flame failure
Check and remove the cause(s) of
malfunction. To reset, turn on/off
switch to 0 and then to 1.
Call service agent if the problem
persists
Bad combustion
Reduced airflow
Overheating
Troubleshooting