AERCO Esteem O&M Manual - Manual (Page 70)

64
Clean Condensate Drain Assembly
Clean Condensate Drain Assembly
1. Loosen the retaining nut from the conden-
sate drain assembly and disconnect the
assembly from the boiler.
2. Empty any water from the trap and drain
assembly. Flush with fresh water as nec-
essary to clean.
3. Check the drain piping from the conden-
sate drain assembly to the drain. Flush to
clean as necessary.
4. Reassemble the condensate drain
assembly onto the boiler by tightening
the retaining nut with rubber seal onto the
boiler. Hand tight only.
5. Remove the fill plug on the condensate
drain assembly and fill with water. See
Figure 16 on page 28.
6. Replace the fill plug on drain assembly.
Check Ventilation Air Openings
Verify that all ventilation openings to the
mechanical room or building are open and
unobstructed. Check the operation and wiring
of any automatic ventilation dampers.
Check and verify the vent discharge and the
combustion air intake are free of debris and
obstructions.
Inspect Vent and Combustion Air
Piping
Visually inspect the venting system and com-
bustion air piping for blockage, deterioration or
leakage. Repair any deficiencies.
Verify that the combustion air inlet piping is
connected, sealed and properly supported.
WARNING!
F
AILURE TO INSPECT THE VENT SYSTEM AND
COMBUSTION AIR INLET PIPING AND TO HAVE
ANY CONDITIONS REPAIRED
,
CAN RESULT IN SE
-
VERE PERSONAL INJURY OR DEATH
.
Check Boiler System
Verify all system components are correctly
installed and operating properly.
Check the cold fill pressure for the system,
typical cold water fill pressure is 12 psig.
Verify the system pressure, as the unit operates
at high temperature, to ensure the pressure
does not exceed 25 psig. Excessive pressure
reading indicates expansion tank sizing is incor-
rect or system performance problems.
Inspect air vent and air separators in the
system. Remove the caps on automatic air
vents and briefly depress the valve stem to
flush vent. Replace the cap when completed.
Ensure vents do not leak, replace any leaking
vents.
GF-125