Install Instructions

29
16 - OPERATING THE BOILER - SYSTEM START-UP
6
ECONOMY TARGET Economy feature is active,
limit control continually sets target temperatures below
high limit setting to maximize fuel efciency. When boiler
water reaches target temperature, LED illuminates and
burner shuts down. Boiler water will continue to circulate
and heat the house as long as thermostat call continues.
LED will stay lit until boiler temperature drops below
differential set point at which point boiler will be allowed to
re again.
Note: LED illuminates regularly during normal boiler
operation.
7
TEST/SETTINGS Button
To Test Low Water Cut-Off: Press and hold Test/
Settings button for 5 seconds. Display will read LCO.
LWCO TEST
LCO
Red Low Water light should illuminate and burner circuit
(B1 and B2) should de-energize. Note: Control must
be installed with Electro-Well for low water cut-off
functionality.
To View Current Settings: Press and release Test/
Settings button in short intervals to sequentially display the
following settings:
Display will return to boiler temperature (default) if Test/
Settings button is not pressed for 5 seconds.
16.9 Oil Burner
1. Prepare Oil Burner Before Starting. Check burner
air band, air shutter and head setting (if equipped),
readjust if necessary. See “17 - Oil Burner, Nozzle, &
Air Settings” on page 31.
A. Open all oil line valves.
B. Attach a plastic hose to fuel pump vent tting and
provide a pan to catch the oil.
2. Prime Pump and Start Oil Burner
A. Open bleed port tting on fuel pump.
B. Initiate a call for heat
C. Bleed pump until all froth and bubbles are purged.
D. Terminate call for heat. Close bleed port tting on fuel
pump.
E. Adjust oil pressure.
I. Initiate call for heat.
II. Locate oil pressure adjusting screw and turn screw
to obtain proper pump pressure, refer to “17 - Oil
Burner, Nozzle, & Air Settings” on page 31 .
3. Preliminary Oil Burner Adjustments
A. Adjust Draft Regulator for breech draft of -0.05
(preferred) to 0 inches water column after chimney
has reached operating temperature and while burner
is running.
B. Use smoke tester and adjust air if necessary for
minimum smoke (not to exceed trace) with minimum
of excess air. Check using suitable instrumentation to
conrm CO
2
of 11 to 13%. If ame appears stringy
instead of solid re, try another nozzle of same type.
Flame should be solid and compact.
C. Turn off burner and remove pressure gauge. Install
gauge port/bleeder plug and tighten. Start burner
again.
WARNING
Fire, burn, asphyxiation hazard. Do not loosen
or remove any oil line ttings while burner is in
operation. Failure to follow these instructions could
result in death or serious injury.
!
WARNING
Fire, burn, asphyxiation hazard. Do not attempt
to start burner when oil has accumulated in
combustion chamber or unit is full of vapor, or
hot. Check operation of all boiler controls before
installation of boiler is completed. Failure to follow
these instructions could result in death or serious
injury.
!
PN 473900000