BENSON GUHA, User Instructions

 If for any reason the pilot light is 
extinguished  

no attempt should be made 

to re light it within three minutes

 
a) Switch on electrical supply 
 
b) Turn on gas supply, and open burner 
viewing port 
 
c) Depress and hold in control start button 
whilst operating igniter until pilot light is 
present 
 
dl) Hold in start button for at least one minute 
to establish pilot - carefully release button 
confirming presence of pilot 
 

Warning 

If the pilot fails to become established 

do not

attempt to re light for at least three minutes , 
if the pilot is established continue as follows.  
 
e) Close burner viewing port 
 
f) Set the thermostat to the highest setting, 
and the main burner will light then re-open 
the viewing port and check that the main 
burner is providing a good flame i.e. even, 
stable, and conical. 
 

Caution 

 
If the fan fails to operate within approximately 
two minutes and the heater goes to overheat 
it will shut down through breaking the circuit 
to the gas valve, the cause must be 
ascertained and rectified before re-ignition.  
Once the limit thermostat has tripped out it 
must be manually reset to allow re-ignition to 
take place. 
 
g) Set controls as required    

10.4 Ignition sequence automatic 
versions 

Automatic control is by way of a Satronic 
controller (with automatic gas valve replacing 
the manual standing pilot valve) used in 
conjunction with a Satronic spark generator 
(which replaces the piezo igniter as fitted to 
manual units) , giving a maximum pilot 
sequence of 15 seconds. 
Flame supervision is via a flame sensor rod. 

instead of the thermocouple as fitted to the 
manual units.  
The sequence is as follows: as per 10.3 a-i  
The start signal will ignite the pilot, once the 
flame proving has taken place the main gas 
valve will supply the burner and burner 
ignition will occur. 

10.5  Stop procedure  

 
(a)  Set  controller to off position. 
 
(b)  The fan motor will continue to run until 
heat dissipation allows the fan and limit stat 
to shut down the fan. 
 

Caution 

Do not use the main electrical isolator to turn 
off the heater, to do so can cause damage to 
the heat exchanger and combustion 
chamber, and thereby invalidate the 
warranty. 
 

10.6 Shut down procedure  

 
(

a)  Follow steps 10.5 (a) and (b), when fan 

stops turn main electrical isolator off, and 
shut gas supply cock 
 

10.7 Ventilation only  

 
(

a)  Set heat/ventilate switch to 'ventilate'. 

10.8 Lockout situations  

 
If either the burner or the fan and limit stat go 
to lockout, the lockout must be cleared 
manually before the ignition sequence can 
be re-initiated. 

 
Caution 

Repeated or frequent lockouts must be 
investigated and their cause determined by a 
qualified and competent engineer.