Part number 550-100-261/0520
7
User maintenance procedures
(continued)
ECO
®
Tec
G
as
-
fired
water
boiler
– 80/110/150/199 U
ser
’
s
i
nformation
m
anUal
Check display date and time
1. Observe the date and time shown below the
Weil-McLain logo on the control display
on page 11.
2. If the date or time is incorrect, follow the
instructions in Figure 8, page 11 to access
the USER MENU and change the date and/
or time settings.
3. Keeping the date and time current makes
sure the control can record problems ac-
curately.
Ball float
Contact a boiler service technician
immediately if you find the trap
dry (no water inside).
Figure 3
Boiler condensate trap (front
access panel removed)
Figure 4
Automatic air vent
MONTHLY
Maintenance
Check vent & air piping
Visually inspect the flue gas vent piping and air piping for
any signs of blockage, leakage or deterioration of the pip-
ing. Notify your qualified service technician at once if you
find any problem.
Failure to inspect the vent/air system as noted
above and have them repaired by a qualified
service technician can result in vent system
failure, causing severe personal injury or death.
Check the relief valve
1. Inspect the boiler relief valve and the relief valve dis-
charge pipe for signs of weeping or leakage.
2. If the relief valve often weeps, the expansion tank may
not be working properly. Immediately contact your
qualified service technician to inspect the boiler and
system.
3. For Combi Boiler Models only:
Inspect the Domestic
Hot Relief Valve and relief valve discharge pipe for signs
of weeping or leakage. If signs are present, contact your
qualified service technician.
Check the condensate drain system
1. Visually inspect the condensate drain tubing and the
end of the tube. Make sure the tube is in good condition
and that condensate can run freely.
2. Inspect the boiler condensate trap, located under the
boiler (see Figure 3). Make sure the ball float in the trap
is in place and appears to be free to move. Make sure
the trap has water in it.
3. Contact a boiler service technician if you observe any
problems.
Check DHW Temperatures (Combi
Only):
1. Check hot water temperatures at all fixtures
2. Allow hot water to run for several minutes and ensure
water temperatures do not exceed 120°F. Temperatures
above 120°F can scald. See scald warning on page 12.
3. The combi boiler’s
thermostatic mixing valve
and/or
other installed mixing valves may need adjustment.
Contact your qualified service technician if temperature
adjustments are needed.
Check automatic air vents
(if used — au-
tomatic air vents must be used with diaghragm-
type expansion tanks only)
1. See Figure 4.
2. Remove the cap from any automatic air vent in the
system and check operation by depressing valve “B”
slightly with the tip of a screwdriver.
Scald hazard
— Water from air vent may
be very hot. Avoid contact to prevent possible
severe personal injury.
3. If the air vent valve appears to be working freely and
not leaking, replace cap “A”, twisting all the way on.
4. Loosen cap “A” one turn to allow vent to operate.
5. Have vent replaced if it does not operate correctly.
