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2 Maintenance schedule (continued)
7
ƽ WARNING
The condensate trap (FIG. 2-1) must
be filled with water during all times
of boiler operation to avoid flue gas
emission from the condensate drain line.
Failure to fill the trap could result in
severe personal injury or death.
FROM CONDENSATE
VENT ON BOILER
FROM CONDENSATE
DRAIN ON BOILER
TO FLOOR DRAIN
OR NEUTRALIZER KIT
1” PVC / CPVC CONNECTION
Figure 2-1 Condensate Trap
Condensate disposal
1. The Crest is a high efficiency appliance that produces
condensate.
2. The rear of the boiler has a 1 inch (25.4 mm) stainless
steel drain fitting and a 3/8 inch (9.8 mm) stainless steel
vent line for connection to the condensate trap.
3. Connect the 1 inch (25.4 mm) fitting to the 1 inch
(25.4 mm) fitting on the condensate trap with the
factory supplied silicone hose. Secure the hose to
the condensate trap and the boiler using the factory
supplied hose clamps.
4. Connect the 3/8 inch (9.8 mm) fitting to the 3/8 inch
(9.8 mm) fitting on the condensate trap (shipped loose)
with the factory supplied silicone hose. Secure the hose
to the condensate trap and the boiler using the factory
supplied hose clamps.
5. The condensate trap must be installed at the same level
or below the boiler base.
6. The condensate trap is sized for a 1" PVC outlet
connection pipe.
7. Plug the wiring connection from the condensate trap
into the connector located on the back of the unit.
8. Slope condensate tubing down and away from the
boiler into a drain or condensate neutralizing filter.
Condensate from the Crest will be slightly acidic
(typically with a pH from 3 to 5). Install a neutralizing
filter if required by local codes.
A neutralizer kit (FIG. 2-2) is available from the factory
(KIT40045). The neutralizer kit must be placed on a
surface that is a minimum of 3 inches lower than the
condensate trap.
9. Do not expose condensate line to freezing temperatures.
Use materials approved by the authority
having jurisdiction. In the absence of
other authority, PVC and CPVC pipe
must comply with ASTM D1785 or D2845.
Cement and primer must comply with
ASME D2564 or F493. For Canada use
CSA or ULC certified PVC or CPVC pipe,
fittings, and cement.
10. A condensate removal pump is required if boiler is below
the drain. When installing a condensate pump, select one
approved for use with condensing boilers and furnaces.
The pump should have an overflow switch to prevent
property damage from condensate spillage. The switch
should be wired to the auxiliary device proving switch
terminals on the low voltage connection board.
NOTICE
NOTICE
To allow for proper drainage on large
horizontal runs, a second line vent may
be required and tubing size may need to
increase to 1 inch.
The condensate line must remain
unobstructed, allowing free flow of
condensate. If condensate is allowed to
freeze in the line or if the line is obstructed
in any other manner, condensate can exit
from the boiler tee, resulting in potential
water damage to property. Call your
qualified service technician to inspect
the boiler and system.
Figure 2-2 Condensate Disposal
FLOOR DRAIN
OR DRAIN PAN
NEUTRALIZER KIT
(OPTIONAL)
3” MINIMUM BELOW
CONDENSATE TRAP
CONDENSATE TRAP
SAME LEVEL OR BELOW
BOILER BASE
User’s Information Manual