ES2 User Information Manual

3109547-01 - 6/19
1. Safe reliable operation of this boiler depends upon proper periodic maintenance.
2. The following should be done on a continuous basis:
• Keep the area around the boiler free of objects, which are flammable or which could obstruct the flow of air
into and around the boiler.
• Do not store or use sources of hydrocarbons such as bleaches, fabric softeners, paints, cleaners,
refrigerants, and cat boxes near the boiler. Traces of these chemicals can be drawn into the boiler, causing
severe corrosion damage to the boiler and/or objectionable odors.
• Do not expose the boiler to large amounts of dust such as that generated by dry wall construction or
woodworking.
3. A qualified gas service technician must perform the maintenance procedure shown in the Installation, Operating,
and Service manual on an annual basis.
4. The owner should visually inspect the venting system on a monthly basis. If any of the following conditions
are found, the boiler should be shut down and a qualified gas service technician called to correct the problem
before the boiler is placed back in service:
• Loose joints, corrosion or other deterioration
• Condensate leakage
• Sags in horizontal runs of vent pipe
• (Chimney vent boilers only) Blocked vent switch not surely attached as shown in Figure 1 or 2, as
applicable
5. The owner should also perform a monthly visual inspection of the boiler and the surrounding system piping. To
do this, remove the boiler jacket door. If any of the following are found, a qualified gas service technician should
be consulted immediately:
• Deterioration of the visible controls, wiring, and sheet metal components
• Heating system water leaks
• Black carbon (“soot”) in or near the burner compartment area (Figure 3)
6. Steam Boilers – Steam boilers require occasional additions of makeup water to replace the small amount of
water lost through radiator and system vents. If an automatic water feeder is installed, this device should add
enough water on its own for the boiler to operate. If there is no feeder and the boiler needs more water, the
yellow "Low Water" light will be illuminated on the low water cut-off located on the side of the boiler. Wait at least
15 minutes for all water in the system to return to the boiler and then open the manual feed valve to add water
until the water level is about 6” (about 3/4 of the way) from the bottom of the glass. Consult a qualified gas
service technician if you are not sure of the location of the manual feed valve or cannot see the water level in the
glass.
7. Auxiliary Controls – Many boilers are installed with equipment not supplied with the boiler, but which is critical for
safe, reliable operation of the boiler. Some examples of this type of equipment include zone controls and boiler
feed pumps. Make sure that this equipment is maintained in accordance with its manufacturer’s instructions.
Maintenance
WARNING
Black carbon (“soot”) in or near the burner compartment area is an indication of a potential carbon
monoxide hazard. If carbon is found, the boiler should be shut down immediately and inspected by a
qualified gas service technician. The cause of the sooting should be found and corrected before the
boiler is restarted.
!
CAUTION
If it is necessary to either manually or automatically add water to a boiler more than once a month,
a qualified gas service technician should inspect the system for leaks or defective vents. Frequent
additions of fresh water can result in severe damage to boiler.
!