AUTOFLAME Mk8 MM User Manual

4 Fuel Output Modes and Changeover Options
Mk8 MM Manual Page | 112
4.5 Fuel Change on the Fly (COF)
4.5.1 Overview
Fuel Change on the Fly (COF) can be optioned by setting option/parameter 131 to 2. In this mode, the fuel
setup is the same as in Dual Fuel Output Mode, the fuel changeover process however, is completely
different.
Fuel Chang on the Fly is activated by applying live voltage input to terminals 91 and 92 simultaneously.
When these inputs are active, a message “COF Enabled” is displayed on the MM’s main boiler screen.
Figure 4.5.1: The main MM screen with “COF Enabled” before fuel changeover
If the COF input is not active (no live voltage on terminals 91 & 92) when the selected fuel is changed then
the MM will operate as already described for Dual Fuel Output Mode, shutting down the burner for a fuel
change.
If COF is not enabled, the MM will change fuel in the same way as in Dual Fuel Output Mode, shutting down
the burner and restarting on the newly selected fuel.

AUTOFLAME Mk8 MM Specifications

General

Brand	AUTOFLAME
Model	Mk8 MM
Category	Controller
Language	English