Patterson-Kelley THERMIFIC MODU-FIRE, Инструкция к добавке

Страница: 13 / 27

Modu-Fire
®
Gas-Fired Boiler Installation/Operation
cock for measuring the gas supply pressure (1/4”
IPS). The supply pressure during main burner
operation must be greater than the minimum
indicated on the rating plate (4 in. W.C. for natural
gas.) The second tap is located downstream from
the last main gas control at the elbow where the gas
line enters the back of the cabinet and is for
measuring the manifold gas pressure (1/8” I.P.S.)
To adjust the gas pressure, remove the cover plate
from the air / gas ratio control valve. Set the boiler
at High fire as described in the boiler operation
section of the manual. The High fire gas pressure is
adjusted with the lower screw of the air / gas ratio
control vale. Using combustion measurement
equipment adjust the oxygen reading between 6.5%
and 7.5%Set the boiler at Low fire as described in
the boiler operation section of the manual. For
initial adjustment the cabinet pressure should be the
same as shown on the “Factory Firetest” label. The
Low fire gas pressure is adjusted with the upper
screw of the air / gas ratio control valve. Using
combustion measurement equipment adjust the
oxygen reading between 6.5% and 7.5%.
Low fire
Adjustment
High fire
Adjustment
Run the firing rate up and down through the
complete firing range and verify that the oxygen
readings are within the proper range.
4.0 OPERATION
4.1 G
ENERAL
4.1.1 Control Panel Front
Become familiar with the basic operation of the
boiler. The front of the control panel shows
Operating Instructions and a series of illuminated
green and amber (operating) and red (problem)
indicator lights which show the condition of the
boiler.
Operating Instructions Temperature Control
Indicator Lights
On-Off Switch
4.2 L
IGHTING AND
S
HUT
-D
OWN
P
ROCEDURES
(Refer To TBIG Latest Edition)
10