Chappee 987T Manuel D'entretien page 34

3.8 Fuel heating
TIGRA 2 CF 510
In order to obtain smooth starting and operation across its output
range the burner is fitted with an electric resistance, which heats
up the light oil in the nozzle line.
This heater (R) is energized when the limit thermostat (TL) calls
for heat, and at the same time the motor will start.
The heater remains energised during working and cuts out when
burner shuts-down.
3.9 Burner start-up cycle
TIGRA 2 CF 510
Normal
Limit thermostat
Heater
Fan motor
Ignition transformer
Oil valve
Flame
Lock-out signal
~
TIGRA 2 CF 510R
Normal
Limit thermostat
Heater
Fan motor
Ignition transformer
Oil valve
Flame
Lock-out signal
0 - 150s
(*) Lock out is indicated by a lamp on the control box 4)(Fig. 1).
20019291
Burner operation
1 2 s
~12s
TIGRA 2 CF 510R
In order to obtain smooth starting and operation across its output
range the burner is fitted with an electric resistance, which heats
up the light oil in the nozzle line.
This heater (R) is energized when the limit thermostat (TL) calls
for heat and after a delay of approximately two minutes depen-
ding on room temperature, the motor will start.
The heater (R) remains energised during working and cuts out
when burner shuts-down.
Lock-out due to failure to light *
~ 1 2 s
Lock-out due to failure to light *
0 ÷ 150s
14
GB
~ 5 s
~12s ~5s
D9869
D5329