AUTOFLAME Mk8 MM User Manual

2 Options & Parameters
Mk8 MM Manual Page | 50
Opt. # Default Range Description
110
1
BC: UV Flame Scanner Type
See option/ parameter 120 for the UV threshold and 122 for the flame
sensor operation. For setting 2, the self-
check UV scanner opens and
closes a shutter to check that the UV scanner is not given a false flame
signal.
1
Standard scanner
2
Self-check scanner
111
0
BC: Pilot Type
For interrupted pilot, when lighting off, the pilot valve will close at the point
the main flame proving phase begins. For intermittent pilot, when lighting
off, the pilot valve will remain open during firing. For continuous pilot, when
the burner goes above its off differential of the required setpoint, the
burner will continue to fire with the pilot valves energised for the set time
period. See options 71 and 72.
0
Interrupted pilot
1
Intermittent pilot
2
No pilot
3
Continuous interrupted pilot
4
Continuous intermittent pilot
Note: Setting 2 no pilot cannot be used with single valve pilot (option/
parameter 130).
112
40
BC: Pre-Purge Time
Purging the boiler before burner start-up with air will force any combustion
remnants out of the stack. Purge time should be set according to boiler
manufacturing guide and local codes and regulations. Time remaining for
the pre- purge process to complete is displayed on the main MM screen.
5 – 240
Seconds
113
3
BC: Pre-Ignition Time
This is the time period when the ignition transformer is on before the pilot
valves opens.
3 – 5
Seconds
114
3
BC: First Safety Time
This is the time period when the pilot valve is open, before the flame is
checked. The time range of this option depends on whether its gas or oil.
3 – 10
Seconds
115
3
BC: Pilot Prove Time - Pilot Trial for Ignition (PTFI)
This is the time period for when the flame is checked after the first safety
time, to prove the pilot flame.
3 – 5
Seconds
116
3
BC: Gas Second Safety Time – Main Trial for Ignition (MTFI)
This is the time period when the main valves are open and the pilot valve
is maintained open, before the flame is checked, for firing on gas. See
option/ parameters 150 – 153. This does not apply for intermittent pilot,
see option/ parameter 111. For firing on oil, see option/ parameter 123.
3 – 10
Seconds
117
5
BC: Main Flame Proving Time
This is the time period after the second safety phase for interrupted pilot or
after the pilot proving phase for intermittent pilot, where the flame is
checked, before going to normal firing/modulation.
5 – 20
Seconds

AUTOFLAME Mk8 MM Specifications

General

Brand	AUTOFLAME
Model	Mk8 MM
Category	Controller
Language	English