Crestron electronic Crest Condensing Boiler 3.5 - Manual (Page 54)

54
Installation & Operation Manual
11
Maintenance
Follow the service and maintenance procedures given throughout this manual and in component literature
shipped with the boiler. Failure to perform the service and maintenance could result in damage to the boiler
or system. Failure to follow the directions in this manual and component literature could result in severe
personal injury, death, or substantial property damage.
The boiler should be inspected annually only by a qualified service technician. In addition, the maintenance
and care of the boiler designated in Table 11A and explained on the following pages must be performed to
assure maximum boiler efficiency and reliability. Failure to service and maintain the boiler and system could
result in equipment failure.
Electrical shock hazard – Turn off power to the boiler before any service operation on the boiler except as
noted otherwise in this instruction manual. Failure to turn off electrical power could result in electrical shock,
causing severe personal injury or death.
Address reported problems
1. Inspect any problems reported by the owner and correct
before proceeding.
Inspect boiler area
1. Verify that boiler area is free of any combustible materials,
gasoline and other flammable vapors and liquids.
2. Verify that air intake area is free of any of the contaminants
listed in Section 1 of this manual. If any of these are
present in the boiler intake air vicinity, they must be
removed. If they cannot be removed, reinstall the air and
vent lines per this manual.
Inspect boiler interior
1. Remove the front access covers and inspect the interior of
the boiler.
2. Vacuum any sediment from inside the boiler and
components. Remove any obstructions.
Clean condensate trap
1. Inspect the condensate drain line, vent line, condensate
PVC fittings, and condensate trap.
Flush condensate trap with water
1. Remove the four (4) screws securing the top cover to the
condensate trap and remove the cover (FIG. 11-1).
2. Locate the plastic ball inside the float tube. Verify there
is nothing under the ball causing it to not seat properly.
3. Fill with fresh water until the water begins to pour out of
the
drain.
4. Replace the top cover and the screws removed in Step 1.
Eliminate all system or boiler leaks.
Continual fresh makeup water will
reduce boiler life. Minerals can build up,
reducing heat transfer, overheating heat
exchanger, and causing heat exchanger
failure. Leaking water may also cause
severe property damage.
1. Inspect all water and gas piping and verify to be leak free.
2. Look for signs of leaking lines and correct any problems
found.
3. Check gas line using the procedure found in Section 6
- Gas Connections.
Check all piping for leaks
ƽ WARNING
ƽ WARNING
ƽ WARNING
ƽ WARNING
FROM CONDENSATE
VENT ON BOILER
FROM CONDENSATE
DRAIN ON BOILER
TO FLOOR DRAIN
OR NEUTRALIZER KIT
1” PVC / CPVC CONNECTION
Figure 11-1 Condensate Trap