Dewhot 25MJ User manual

Dewhot | Space heater manual Page 1 of 24
25MJ
GAS SPACE HEATER
This appliance cannot be used in a space smaller than
100m3 (25MJ) without ventilation

Page 2 of 24 Dewhot | Space heater manual
Read these instructions carefully before operating the
gas space heater and familiarize yourself with the ap-
pliance before connecting it to the gas cylinder. Keep
these instructions for future reference.
IF YOU SMELL GAS
1. Turn o the gas supply at the bottle
2. Extinguish all naked flames
3. Do not operate any electrical
appliances or your vehicle
4. Ventilate the area
5. Check for leaks as described in
this manual
6. If gas smell persists, contact your
dealer or gas supplier immediately
7. Do not modify the appliance
BURN-BACK
In the event of a burn-back, where the
flame burns back to the jet, immediately
turn the gas supply o at the gas cylinder.
After ensuring the flame is extinguished,
wait for I minute and then re-ignite the
appliance as per normal. Should the
appliance burn back again, close the gas
cylinder and call a registered installer.
Do not use the appliance again until the
installer has confirmed that it is safe to
do so.
GAS-PRESSURE REGULATOR
Only install a LPG or NG low pressure
regulator that complies with the
SANS 1237 requirements.
GUARANTEE
After installation, please register your
product on the Dewhot website (You
will need your invoice and Certificate of
Compliance (COC) to complete
the registration.
User
Important

Dewhot | Space heater manual Page 3 of 24
Dewhot | Space heater manual
Only a registered gas
installer can install your
gas heater and must
comply to SANS 10087-1
This appliance may only be installed by a
registered LPG/NG installer.
Registered installers are issued with a card
that displays their registration number.
Insist on seeing this card and make a note
of their registration number.
When they have finished their installation
make sure the installer performs an
operational and safety briefing with you.
Before you sign o the installation, make
sure you also receive your COC.
Installer
This appliance may only be installed by an
Installer registered with the South African
Qualification and Certification Committee
(SAQCC). The appliance must be installed
in accordance with the requirements of
SANS 10087-l for use with LPG or NG and
or any fire department regulations and/or
local bylaws applicable to the area.
If in doubt, check with the relevant
authority before continuing with the
installation. Once an installation is
complete you are required to brief, in full,
the operational and safety functions of
the appliance and installation.

Page 4 of 24 Dewhot | Space heater manual
Technical parameters
Description Gas Space Heater
Model no DH25SH
Gas Pressure 2.8 kPa (LPG)
2.0 kPa (NG)
Max Gas Consumption 0,5 Kg/h
Maximim Room Size 225m3
Minimum Room Size 100m3
Rated Voltage 240V
Rated Frequency 50Hz
Rated Electric Power 34W
Unit Size 610 x 210 x 485mm
Unit Weight 13.3kg
Packaged Size 600 x 282 x 550mm
Packaged Weight 14.7 Kg

Dewhot | Space heater manual Page 5 of 24
Dewhot | Space heater manual
Control Panel
On/O Button
Handle
Handle
Remote Control
IR Receiver
Warm Air Outlet
Remote
Control IR
Reciever
Gas Inlet
Connector
Temperature
Sensor
Power Cord
Air Filter
Power Cord
storage
Parts diagram

Page 6 of 24 Dewhot | Space heater manual

Dewhot | Space heater manual Page 7 of 24
Dewhot | Space heater manual
No. Description No. Description Qty
1 Fan blade assembly 1 25 ODS wind shield 1
2 Air duct left bracket 1 26 Combustion chamber heat shield 1
3 Air duct right bracket 1 27 Fuse fixing bracket 2
4 Motor inner fixing bracket 1 28 Ignition pin 1
5 Fan motor 1 29 Combustion chamber guide plate 1
6 Motor anti vibration ring 2 30 Display 1
7 Motor outer fixing bracket 1 31 Infrared filter plate 1
8 Air duct back panel 1 32 Remote receiver 1
9 Air duct front panel 1 33 Control panel glass 1
10 Vent louver assembly 1 34 Top cover 1
11 Igniter 1 35 Back panel 1
12 Base 1 36 Air filter assembly 1
13 Main PCB 1 37 Remote controller capsule 1
14 Base cover 1 38 Remote controller 1
15 Main gas pipe assembly 1 39 Brass connector 1
16 ODS gas pipe 1 40 Handle slot 2
17 Nozzle 1 41 Wire rack 2
18 Burner assembly 1 42 Power cord 1
19 Combustion Chamber Cover 1 43 Room temperature sensor cover 1
20 Combustion Chamber assembly 1 44 Room temperature sensor base 1
21 Combustion Chamber right
bracket
1 45 Proportional valve assembly 1
22 Combustion Chamber left
bracket
1 46 Front panel 1
23 ODS fixing bracket 1 47 Igniter bracket 1
24 ODS (Oxygen depletion sensor) 1

Page 8 of 24 Dewhot | Space heater manual
1. Economy Button
2. O Timer Set Button
3. Current Room Temperature/Hour
Display
4. Minute Digit Display
5. Child Lock Icon
6. Boost Mode Display
7. Set Temperature Display
8. Combustion Condition Display
9. Increase Button
10. Boost Mode Button
11. Auto Mode Button
12. On Timer Setting Button
13. Child Lock Function
14. Room Temperature Icon
15. ECO Display icon
16. ON Timer Icon
17. OFF Timer Icon
18. Set Temperature Icon
19. AUTO Mode Icon
20. Decrease Button
21. ON/OFF Button
Control panel functions
1 2 3 4 5 6 7 8 9 10
11 12 14 15
13 16 17 18 19 20 21

Dewhot | Space heater manual Page 9 of 24
Dewhot | Space heater manual
Battery Compartment
LCD Display
Timer Function
ON/OFF
ON/OFF
button
Operating
mode
Increase/ Decrease
Child Lock
Remote control functions

Page 10 of 24 Dewhot | Space heater manual
ECO MODE
The heater cuts o when the room
temperature reaches the set temperature.
The heater turns back on in a low output
mode when the room temperature
drops 2°C.
BOOST MODE
The heater cuts o when the room
temperature reaches the set temperature.
The heater turns back on in full output
mode when the room temperature
drops 1°C.
AUTO MODE
The heater starts up with maximum heat
output and then switches to eco mode
once the set temperature is reached to
maintain room temperature.
REMOTE CONTROLLED
Simplicity of adjusting the temperature,
timer and turning the applinace on and o
by using the remote.
THERMOSTATICALLY
CONTROLLED
The appliance will automatically turn itself
on and o when the room temperature
reaches the set temperature. This can be
adjusted from 16°C to 30°C in
1°C incremenets.
CHILD LOCK
Prevent children or unwanted adjustments
by activating child lock and locking the
adjustment functions.
AUTOMATIC IGNITION
The heater automatically ignites itself
once the ON button has been pushed.
FAN ASSISTED COMBUSTION
The motor and fan force oxygen
into the appliance to fuel the heater
more eeciently, decreasing gas
consumption and maximizing
complete combustion.
TIMER FUNCTION
Use the timer function to set the
countdown timer to automatically turn
your heater on or o in a specified amount
of time.
MULITPLE SAFETY FEATURES
The heater is equipped with over heat
temperature protection, oxygen depletion
sensor, flame detection device and a
tilt switch.
Functions & features