PART II: OPERATION
30
Fig. 37 - Progressive burners only
Keys
A
Mains switch ON - OFF
B
Lockout signalling lamp
C
Reset button for control box
D
Gas pressure switch consent signalling lamp
F
High flame operation signalling lamp (or air damper opening during pre-purge stage)
G
Low flame operation signalling lamp
H
Ignition transformer in operation signalling light
I
EV2 opening signalling lamp
L
EV1 opening signalling lamp
P
Modulator (on fully modulating burners only)
Q
Operation selector MAN - AUTO (operation in manual or automatic mode):
MIN = operation with minimum output
0
= Stop
MAX = operation at the maximum output
P
Q
