38
GTV
FORCED CONVECTION AIR HEATERS
Instructions for Installation and Servicing
Combined regulator thermostat assembled with the appliance ensures the suitable operation of device�
Combined thermostat: 3 positions (
Honeywell - L4064
):
•
FAN OFF –
stops the fan – depending on the adjusted temperature�
•
FAN ON –
starts the fan – depending on the adjusted temperature
•
LIMIT OFF –
stops the operation of burner – depending on the adjusted temperature a
44. picure: Combined regulator thermostat
FAN
LIMIT
20
40
60
80
°C
100
120
Push man
Pull auto
CA
UT
IO
N
L4064 FAN AND LIMIT CONTROL
FAN
OFF
ON
LI
M
IT
O
FF
The bimetal spring of the thermostat is placed in between the pipes of heating exchanger � It regulates the working of burner and circu-
lating fan during operation� After start the burner works and when the temperature reaches the adjusted value on the thermostat (FAN
ON) the fan starts to work� In this case the burner and fan is working together� If the temperature reaches the LIMIT OFF value than
the thermostat switches off the burner but the fan is working on. As soon as the temperature decreases under the LIMIT OFF the elec
-
tronic control starts the burner again
The values of the combined thermostat is adjusted by the manufacturer so not necessary to modify the values! Only authorized expert
or service can change the adjusted values!
Temperature limiter thermostat (RESET thermostat,located next to the combined regulator thermostat) - Switch off the burner in case of
overheating(100°C)� In this case – after cooling down – the restart can only be possible by pushing of the ”RESET” switch located on
the thermostat� This action can only be realized by authorized expert or service!
Expect emergency it is prohibited to disconnect the electrical supply of appliance during operation, because in this case the appliance
can be overheated and the exchangers can be burned out� At electrical supply cut, the heat exchangers can little be overheated in
case this temperature reaches or surpasses the 100°C the mechanical temperature limiter thermostat switches on� In such a case the
restart can be realized by pushing of RESET button located on the thermostat�
ATTENTION! This action can only be realized by outhorized expert or service!
ATTENTION! If the heater appliance is working, than it is prohibited to close the shutters completely!
Maintenance of regulation system of appliance
