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ADJUST PILOT BURNER
Pilot flame should surround 3/8" to 1/2" of the pilot sensor. Refer to Fig. 18. If flame needs adjusting, do it as follows:
1.Remove screw cover over pilot adjusting screw.
2.Insert small screwdriver and adjust flame as needed. Turn screw counterclockwise to increase flame, clock+ wise to decrease.
3.Replace screw cover over pilot adjusting screw.
MAIN BURNER(S)
The main burners do not require primary air adjustment and are not equipped with primary air shutters Main burner flames should form sharp blue inner cones in a softer blue outer mantef, with no yellow. Puffs of air from blowing on the flame or stamping on the floor wilt cause the flames to turn orange momentarily This is not unusual. Remain still when observing the main burner flames. If the flame appearance is not correct, check main burner orifices and the burner throat and flame ports for dust and lint obstruction. It may be nec- essary to remove the rollout shield to observe the main burn- er flames Replace rollout shield after observation Refer to Figure 17+
ADJUST LIMIT CONTROLS
Instructions for each control are included with the controls These settings can be changed after you have had some
RECOMMENDED BOILER WATER TEMPERATURES J
Type of Heating | Unit | Limit Control | Setting | I |
Standing Radiators |
| 180° F. | ||
Baseboard and | Convector | Radiators | 200 ° F. | |
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idea how the system works. Example: If your system does not give quite enough heat in very cold weather, you can raise the limit setting to 220° R Use the boiler gauge to check your settings. Make the adjustments according to its readings. Check thermostat operation. When set above temperature
indicated on the thermometer, boiler should ignite. Make cer- tain the thermostat turns off the boiler when room tempera-
ture reaches the selected setting and starts the boiler oper- ating when room temperature falls a few degrees.
After setting limit control to limit setting, check to see if it shuts off the gas supply to the burners. 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 satis- fied, or the water cools enough to restart the burners through the limit control
FinaPly, set the thermostat for the desired temperature. Special conditions in your home and the location of the ther- mostat will govern this setting
3/8" to 1/2"'
22
