43
Table 8 –
Vent Termination Kit for Direct Vent/2-Pipe System
DIRECT VENT (2-PIPE) TERMINATION KIT
TERMINATION SYSTEM
DIAM. OF COMBUSTION AIR AND VENT
PIPES --- IN (mm)
2-in. (51 mm) Concentric Vent Kit
Single Penetration of Wall or Roof
1, 1---1/2, 2, or 2---1/2 (25, 38, 51, 64 mm)
3-in. (76 mm)Concentric Vent Kit
Single Penetration of Wall or Roof
2---1/2, 3 or 4 (64, 76, 102 mm)
2-in. (51 mm)Termination Bracket Kit
2---Pipe Termination System
1, 1---1/2 or 2 (25, 38, 51mm)
3-in. (76 mm) Termination Bracket Kit
2---Pipe Termination System
2---1/2, 3 or 4 (64, 76, 102 mm)
Multi--venting and Vent Terminations
When 2 or more 355CAV Furnaces are vented near each other,
each furnace must be individually vented. NEVER common vent
or breach vent 355CAV furnaces.
OPEN STAND
PIPE FOR
A/C OR
HUMIDIFIER
DRAIN
TEE
TO OPEN
DRAIN
A94054
Fig. 45 -- Example of Field Drain Attachment
CONDENSATE DRAIN
General
Condensate trap is shipped installed in the blower shelf and
factory connected for UPFLOW applications. Condensate trap
must be RELOCATED for use in DOWNFLOW and
HORIZONTAL applications.
Condensate trap MUST be used for all applications.
An external trap is not required when connecting the field drain
to this condensate trap.
The field drain connection (condensate trap or drain tube
coupling) is sized for 1/2--in. CPVC, 1/2--in. PVC, or 5/8--in. ID
tube connection.
Drain pipe and fittings must conform to ANSI standards and
ASTM D1785, D2466, or D2846. CPVC or PVC cement must
conform to ASTM D2564 or F493. Primer must conform to
ASTM F656. In Canada, use CSA or ULC certified schedule 40
CPVC or PVC drain pipe, fittings, and cement.
When a condensate pump is required, select a pump which is
approved for condensing furnace applications. To avoid
condensate spillage, select a pump with an overflow switch.
Furnace condensate is mildly acidic, typically in the pH range of
3.2 to 4.5. Due to corrosive nature of this condensate, a
condensate pH neutralizing filter may be desired. Check with
local authorities to determine if a pH neutralizer is required.
Application
The furnace, A/C, and humidifier drains may be combined and
drained together. The A/C drain must have an external,
field--supplied trap prior to the furnace drain connection. All
drain connections (furnace, A/C, or humidifier) must be
terminated into an open or vented drain as close to the respective
equipment
as possible to
to prevent siphoning of the
equipment’s drain.
CONDENSATE TRAP
WIRE TIE(S)
HEAT TAPE
(3 WRAPS MINIMUM)
A93036
Fig. 46 -- Condensate Trap Heat Tape
See Fig. 45 for example of possible field drain attachment using
1/2--in. CPVC or PVC tee for vent and A/C or humidifier drain
connection.
Outdoor draining of the furnace is permissible if allowed by local
codes. Caution should be taken when freezing ambient may
freeze drain pipe and prohibit draining.
PERSONAL INJURY HAZARD
Failure to follow this warning could result in personal
injury or death.
Caution should be taken to prevent draining where slippery
conditions may cause personal injuries. Excessive
condensate draining may cause saturated soil conditions
which may result in damage to plants.
!
WARNING
Condensate Drain Protection
Freezing condensate left in condensate trap and drain line may
cause cracks, and possible water damage may occur. If freeze
protection is required, use condensate freeze protection accessory
or equivalent 3 to 6 watt per ft. (.3M) at 120v and 40
_
F (4.4
_
C)
self--regulating, shielded, and waterproof heat tape. See
Installation Instructions supplied with accessory or heat tape
manufacturer’s recommendations.
355C
A
V
