Slant/Fin CB-45 Installation And Operating Instructions Manual page 10

B. When joining the various components of the above
listed vent systems, the manufacturers' instructions
should be closely followed to insure proper sealing. Use
GE-RTV106 or Dow-Corning 732 sealant for sealing of
pipe and fittings. See Figure 4 for proper application of
vent pipe sealant.
C. All vent connections must be liquid and pressure tight.
VENTING INSTALLATION
A. Follow the vent material manufacturer's instructions in
conjunction with these instructions for venting system
installation.
B. Refer to Figures 4 and 9 which illustrate some of the
requirements for venting in a typical installation.
C. A condensate drain and drain trap MUST be installed on
the flue tubing, see Figure 9. The condensate drain should
be installed close to the boiler, as shown, and must be
equipped with a trap formed by attaching 9mm (3/8") I.D.
clear plastic tubing to the drain assembly, making a loop
approximately 102mm (4") diameter and securing with cord
or a tie wrap where the loop crosses over itself. This loop
should then be filled with water to form a liquid-filled trap.
DO NOT OPERATE THE BOILER WITHOUT INSTALLING
THIS TRAP AND FILLING WITH WATER TO PREVENT
FLUE GAS DISCHARGE INTO SPACE. Periodic inspection
should be made of this assembly for deterioration of the
tubing and to insure that the trap is filled with water, but not
plugged. If it is plugged or appears to have excessive
sediment in it, it should be removed from the drain
assembly, straightened out to clear the obstruction,
reformed, filled with water and reinstalled as before. The
drain must extend to a floor drain.
D. The horizontal pipe must be sloped UPWARD from the
boiler, at a pitch of 20mm/m (1/4" per 1 foot) of run, so
that the condensate from the vent system runs to the
drain trap. The horizontal portion must also be
supported with 19mm (3/4") pipe strap at intervals no
greater than 1828mm (6 feet).
Figure 4. Vent sealing instructions
(Consult vent manufacturer's instructions.)
VENT SEALING INSTRUCTIONS FOR HEAT-FAB 29-4C
STAINLESS STEEL VENTING MATERIALS
RING
APPLY ADHESIVE BEAD (6mm [1/4"] DIA.
MINIMUM) AROUND OUTSIDE OF MALE END ONLY,
BETWEEN 6mm (1/4") AND 9mm (3/8") FROM THE
EDGE OF THE MALE END.
CARE MUST BE TAKEN TO ASSURE THAT
ADHESIVE DOES NOT BLOCK INSIDE OF PIPE
DO NOT APPLY ADHESIVE INSIDE
OF FEMALE FITTINGS IN ORDER TO
PREVENT BLOCKAGE OF INSIDE OF
FITTINGS AND TUBING. IF ANY ADHESIVE
SHOULD GET INSIDE, BE SURE TO WIPE IT
OUT BEFORE ASSEMBLING
10
Category IV Venting Requirements
E. The vertical portion of the pipe must be supported in at leas
one location for each 9m (30 feet) of vertical run. A firestop
is required for each wall, ceiling and floor penetration.
F. Use tabs on vent collar to secure stainless steel vent
tubing to the boiler.
G. Venting is approved for combustible wall passage
through a 102mm (4") minimum to 305mm (12")
maximum thick wall, providing a thimble is used.
HORIZONTAL CATEGORY IV VENTING
All Concept 21 boiler models are certified for horizontal
Category IV venting provided the following conditions are met
1. For combustible wall passage of vent piping, a UL and
CUL listed thimble must be used, providing the wall
thickness is 102mm (4") minimum to 305mm (12")
maximum.
2. The venting piping must terminate with a screened tee,
elbow, or straight termination at the minimum distance
from the outside wall shown in Figure 10.
Figure 9. General Vent Piping from Boiler for Category IV Ventin
All items shown below are REQUIRED.
All vent joints must be LIQUID and PRESSURE TIGHT.
CONTINUE WITH VENT
PIPING AS SHOWN IN
FOLLOWING FIGURES
76mm (3") MIN.
SLOPE UP 20mm/m (1/4" PER FT.)
610mm (24") MAX.
CONDENSATE DRAIN ASSY.
FILL TRAP WITH WATER
TO DRAIN
HEAT
EXCHANGER
ASSY.
Figure 10. Horizontal Category IV Venting through outside wall
VENT PIPE
SLOPE UP 20mm/m
(1/4" PER FT.)
AIR INLET COVER
AIR FILTER BOX
ASSY.
HEAT EXCHANGER
ASSY.
EXHAUST VENT
PIPING 76MM (3") I.D.
AIR INLET COVER
203mm (8") MIN.
610mm (24") MAX.
AIR FILTER BOX ASSY.
WALL
THIMBLE
VENT
TERMINATION
WITH SCREEN
102mm
(4")
305mm
MIN.
(1 FT.)
MIN.
OUTSIDE WALL
SNOW LINE
TO GROUNDLINE
DRAIN