widmer WH 2 Instruction Manual Download Page 6

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DESCRIPTION 

EK mobile electrical space heaters have been designed to 
heat different kinds of locations: industrial, civil, warehouses, 
building yards, public places. Air is taken from the environment 
through a fan and heated by armour-plated resistances. 
The fan and resistances are inside the machine and the air 
comes in and out through appropriate grids. Space heaters are 
made of steel sheets and provided with a double wall to 
enhance machine efficiency and limit external walls 
temperatures. They are provided with feet as 
well, to be mounted before use. These offer optimum stability 
to the machine provided it is placed on an horizontal solid 
surface.  

GENERAL ADVICE 

Space heaters must be installed, set up and used in 
accordance with current laws. 
A few general guidelines should be observed: 
• follow the instructions in this booklet very carefully; 
• do not install the heater near showers, bathtubs or swimming 
pools; 
• do not place the heater immediately beneath a fixed wall 
socket; 
• the heater must be placed on a firm surface to avoid 
overturning; 
• inflammable materials must be kept at a safe distance from 
theheater; 
• the heater must not be covered; 
• make sure the heater is always under surveillance and keep 
childrenand animals away from it; 
• after use make sure the disconnecting switch is off.  

INSTALLATION INSTRUCTIONS 

Warning 

Use the four screws provided to fix the feet as shown in 
the picture before using the heater.  

Models WH 2must be connected to a 230V ~ grounded wall 
socket, while models WH 5/9/15 are equipped with a CEE 
plug to be connected to a 400V 3 ~ grounded electric mains. 
Before any attempt to start the heater is made, check that your 
electrical supply conforms to the data on the model plate.  

Warning 

Mains must be fitted with a thermo-magnetic differential 
switch. 
The unit plug must be linked to a socket with a mains 
switch.  

INSTRUCTIONS 

THERMOSTAT 0-40 C° 
Turn on the ON-OFF switch (a). 
By setting the room thermostat to the desired temperature 
level, the 
heater will start and stop automatically. When the selected 
temperature 
level is reached, the fan only goes on for the time required 
(“POSTVENTILATION”).  

POWER SELECTOR 
You can choose power delivery using the selector (b) as 
follows:  

TEMPERATURE-LIMIT THERMOSTAT      

A temperature-limit thermostat will stop the power supply in 
caseof overheating. If the thermostat releases, disconnect 
fan's electricitysupply, wait until the fan has cooled down and 
fix the problem causingthe overheating. In models EK3 A and 
EK9 A press the RESET buttonon the heater cover to reset the 
temperature-limit thermostat. In modelsEK15 A reset is carried 
out at the back of the machine, next to theRESET label: 
unscrew the protective hood and press the red button, replace 
the hood to avoid compromising the heater insulation 
protectionlevel.  

POSTVENTILATION 
When the room temperature reaches the value of the valve on 
thethermostat, the heating stops and the fan goes on until the 
resistanceshave cooled down.  

TURNING OFF 
To stop the appliance, turn the ON-OFF switch (a) to the “0” 
position,the heating stops and the fan goes on until the 
resistances havecooled down.  

MAINTENANCE 

Warning 

Before carrying out any maintenance operation you must: 
• Stop the heater; 
• Turn off the disconnection switch on the electric 
switchboard; 
• Wait until the heater has cooled down.  

 

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