Operating instructions

Adjust Limit Controls
Instructions for each control are included with the controls.
Recommended Boiler Water Temperatures
Type of Heating Unit Limit Control Setting
Standing Radiators ......................................... 180° F
Baseboard and Convector Radiators ............. 180° F
Figure 15 - PILOT FLAME ADJUSTMENT
3i8'!tO 112"
t
Flame
on
Sensor
These settings can be changed after you have had some idea how the
system works. Exam l,_.If your system does not give quite enough heat in
very cold weather, you can raise the limit setting to 190°E
Adjust Thermostat Heat Anticipator
INSTRUCTIONS FOR THE FINAL ADJUSTMENT
OF THE THERMOSTAT ARE PACKAGED WITH
THE THERMOSTAT.
4. Set Heat anticipator at .2.
5. Check thermostat operation. When set above temperature indi-
cated on the thermometer, boiler burners should ignite. Make
certain the thermostat turns off the boiler when room tempera-
ture reaches the selected setting and starts the boiler operating
when room temperature falls a few degrees. After setting limit
control to desired setting, check to see if it shuts off the gas sup-
ply to the burners.
6. Turn your thermostat up to call for heat and let your boiler run
until the temperature of the water reaches the limit setting. The
gas valve should shut off and the circulator keep running until
the thermostat is satisfied, or the water cools enough to restart
the burners through the limit control.
7. To check the operation of the contacts in the pressure switch,
disconnect the rubber tubing (located between the blower and
the pressure switch) from the pressure switch, while the boiler is
operating. The burners should extinguish and the blower should
keep running. When the tubing is reconnected to the pressure
switch, the ignition sequence should begin, resulting in ignition
of the main burners.
8° Finally,set the thermostat for the desired temperature. Special
conditions in your home and the location of the thermostat will
govern this setting.
Safelighting and other performance criteria were met with the gas
manifold and control assembly provided on the boiler when the
boiler underwent tests specifiedin ANSI Z21.13-latestrevision.
Burners
A visual check of the pilot and main burner flames should be made at
least once each year, preferably at the beginning of the heating season.
See Figures 15, and 17.
Figure 16 -AUTOMATIC GAS VALVE
PRESSURE REGULATOR ADJUSTMENT
(UNDER CAP SCREW)
INLET
PRESSURE.
TAP _'-,
INLET
GAS CONTROL KNOB
WIRING
TERMINALS (2)
OUTLET
PRESSURE
TAP
GROUND
(2)
OUTLET _
PILOT
OUTLET
PILOTADJUSTMENT
(UNDER CAP SCREW)
Figure 17 - Main Burner Flame
LIGHT BLUE
Themain burner flameshould form a
sharp blue inner mantel with no yellow.