AUTOFLAME Mk8 MM - Page 160

10 Water Level Control
Mk8 MM Manual Page | 160
# Default Range Description
6
0
WLC: Second Low Probe
For setting 0, it is recommended that an auxiliary second low mains input
is wired to terminals 2AI. For setting 1, the Autoflame conductive second
low probe is wired to terminals 4P-, 4P+, 6T- and 6T-. Please see local
codes/ regulations for second low probe and auxiliary second low alarm
setup. For the possible water level sensing device combinations, please
see section 3.3.
0
Second low probe disabled
1
Second low probe enabled
7
0
WLC: Pre-High Alarm Percentage
The pre-high alarm level is at percentage between the control point and
high water, with the control point being referring to 0% and the high water
referring to 100%. For setting 0 there is no pre-high alarm and for settings
higher than 1, the MM will generate an alarm if the water level reaches
this % value between the commissioned control point and high water. For
example, if this is set to 45%, then a pre-high alarm will occur if the water
level rises to 45% between the control point and high water level.
0
Disabled
1 – 99
1% - 99%
8
0
WLC: Pre-First-Low Alarm Percentage
The pre-first-low alarm level is at percentage between the control point
and first low, with the control point being referring to 0% and the first low
referring to 100%. For setting 0 there is no pre-first-
low alarm and for
settings higher than 1, the MM will generate an alarm if the water level
reaches this % value between the commissioned control point and first
low. For example, if this is set to 45%, then a pre-first-low alarm will occur
if the water level drops to 45% between the control point and first low
level.
0
Disabled
1 – 99
1% - 99%
9
0
WLC: Burner Operation at High Water
For setting 0, the burner will continue to fire at high water. For setting 1
the burner will stop firing at high water. Expansion option 10 sets whether
the pump turns off above the control point or high water.
0
Burner runs at high water
1
Burner stops at high water
10
0
WLC: Pump Turn Off Point
The water level at which the pump turns off is set as a percentage above
the control point for setting 0, or above the high water for setting 1, see
expansion option 11.
0
Pump turns off above control point
1
Pump turns off above high water
11
30
WLC: Pump Turn Off Percentage
When the water level reaches this percentage of the control point or high
water, depending on how expansion option 10 is set, the pump will turn
off. If expansion option 10 is set to 0, then this percentage will be between
the control point and high water. If expansion option 10 is set to 1, then
this percentage is above high water, and should not be set more than a
safe top of the probe level.
0 – 100
0% - 100%