MFC Series Boilers User Manual
CHAPTER 10 – MFC 8000/10000 DUAL FUEL BURNER
P
OMM-0104_94
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
Page
115
of
170
GF-146
Ph.: 800-526-0288
12/29/2015
10.12 Pump Pressure
300 psi
: This is the pressure calibrated in the factory which is usually sufficient for most
purposes. Sometimes, this pressure must be adjusted to:
145 psi:
To reduce fuel delivery. This adjustment is possible only if the surrounding temperature
remains above 0 °C.
In order to adjust pump pressure, use the screw (5) shown in Figure 10-8.
10.13 Burner Firing
Having completed the checks indicated in the previous heading, the ignition pilot of the burner
should fire.
Setting Burner to Fire Gas
1 Set switch (1) in Figure 10-11 to "LOCAL".
2 Set switch (2) in Figure 10-11 to "GAS".
Figure 10-11: Gas Manifold Pressure Measuring Locations
3 If the motor starts, but the flame does not appear and the flame safeguard goes into
lock-out, reset and wait for a new firing attempt.
4 Adjust the pilot per Figure 10-3.
5 Having adjusted the pilot, reconnect the main valve and ignite the main flame. It may
require several attempts to purge the air from the gas lines or to adjust the valve with
little gas.
6 Once the burner has fired, now proceed with calibration operations.
10.14 Changing Fuel Type
There are two possible options for changing fuel:
•
Using switch (2) in Figure 10-11.
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Using a remote selector connected to the main terminal board.
By setting switch (1) in Figure 10-11 to “REMOTE” you activate the remote fuel selection facility.
In this position, if no remote selector is fitted, the display shows the priority fuel.
