AERCO BMK 2.0 LN Dual Fuel Nov 2010 - Manual (Page 57)

SAFETY DEVICE TESTING
6-7
AIR/FUEL VALVE COVER
(ROTATE CCW TO REMOVE)
6.13 IGNITION SWITCH OPEN DURING
IGNITION
The Ignition Switch (and the Purge Switch) is
located on the Air/Fuel Valve. To check the
switch, proceed as follows:
1. Set the unit’s ON/OFF switch to the OFF
position.
2. Place the unit in Manual Mode and set the
valve position to 34%.
3. Remove the Air/Fuel Valve cover (Figure
6-5) by rotating the cover counterclockwise
to unlock and lift up to remove.
4. Remove one of the two wires (#169 or #170)
from the Ignition Switch (Figure 6-6).
5. Initiate a unit start sequence.
Figure 6-5
Air/Fuel Valve Cover Location 6. The unit should begin it’s start sequence
and then shut down and display IGN
SWITCH OPEN DURING IGNITION.
7. Replace the wire on the Ignition Switch and
press the CLEAR button. The unit should
restart.
17
2 17
1
16
9
17
0
6.14 SAFETY PRESSURE RELIEF
VALVE TEST
Test the Safety Pressure Relief Valve in
accordance with ASME Boiler and Pressure
Vessel Code, Section VI.
Figure 6-6
Air/Fuel Valve Purge and Ignition Switch
Locations