Burnham Series 5B - Manual (Page 64)

64
18. CHECK THERMOSTAT OPERATION. Raise and
lower thermostat setting as required to start and stop
burners.
19. CHECK HIGH LIMIT CONTROL. Jumper
Thermostat terminals or thermostat connections in
Limit Control. Allow burners to operate until shutdown
by limit. REMOVE JUMPER.
20. TEST IGNITION SYSTEM SAFETY SHUT-OFF
DEVICE AS FOLLOWS:
Place the boiler into operation by following the
appropriate lighting instructions in this manual.
Proceed with test as follows:
a. Thermocouple Pilot System
Using a 3/8” wrench loosen the thermocouple lead
at the gas valve. Main gas and pilot gas must shut
off. If not, replace gas valve.
b. EI Pilot System
Carefully remove ignitor sensor wire from ignition
module Main gas and pilot gas must shut off
immediately. If not, replace the module.
c. OP and EP Pilot Systems
Carefully remove the flame rod wire from terminal
“11” on the RM7890 Control. Main gas and pilot
gas must shut off. If not, replace the RM7890
Control.
21. COMBUSTION CHAMBER BURN-OFF
a. The mineral wool combustion chamber panels
contain a cornstarch based binder that must be
burned out at installation to prevent odors during
subsequent boiler operation.
b. Ventilate the boiler room, set the high limit to its
maximum setting, set the thermostat to call for heat.
Allow the boiler to fire for at least an hour or until
the odor from the cornstarch has dissipated.
c. Return the high limit and thermostat to their desired
settings.
cAUTiON
Avoid operating this boiler in an environment
where saw dust, loose insulation fibers, dry wall
dust, etc. are present. If boiler is operated under
these conditions, the burner interior and ports
must be cleaned and inspected daily to insure
proper operation.
SecTiON iV - OPeRATiON (continued)