Lochinvar 1.5 사용자 설명서

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Maintenance schedule 
(continued)
7
 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