Benchmark Platinum-Edge: Operation-Service Manual
SECTION 5 – SAFETY DEVICE TESTING
OMM-0137_D • GF-211
•
7/16/2019
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Purge Switch Open During Purge Check Instructions
Figure 5-11c: Air/Fuel Purge and Ignition Locations – BMK 5000 & 6000
5.11 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:
Ignition Switch Open During Ignition Check Instructions
1. Set the Controller’s
Enable/Disable
switch switch to
Disable
.
2. Go to
Main Menu
Diagnostics
Manual Run
and then put the unit in
Manual
Mode
.
3. Set the valve position
between 25% and 30%
using the
+
(Plus) and
–
(Minus) controls.
4. Remove the Air/Fuel Valve cover (Figure 5-10, above) by rotating the cover
counterclockwise.
5. Remove one of the two wires (#169 or #170) from the Ignition switch (see Figure 5-11a –
5-11c, above).
6. Set the Controller’s
Enable/Disable
switch to
Enable
to start the unit.
7. The unit should begin its start sequence and then shut down and display
Ign Switch Open
During Ignition
.
8. Replace the wire on the Ignition switch and press the
CLEAR
button. The unit should
restart.
5.12 SAFETY PRESSURE RELIEF VALVE TEST
Test the safety Pressure Relief Valve in accordance with ASME Boiler and Pressure Vessel
Code, Section VI.
PURGE
POSITION
SWITCH
IGNITION
POSITION
SWITCH
DIAL
AIR IN
TO BLOWER
