Connection of the vent pipe to the vent collar should also be accomplished using RTV type sealant. This type sealant provides a connection which remains flexible and can be separated in the future if service needs re- quire the removal of the vent pipe for service or clear- ance.
NOTE:
To ensure proper operation at the vent lengths indi- cated, the combustion air inlet and vent terminals should be in the same pressure zone. Terminating the vent and inlet in different pressure zones will change the maximum vent lengths and may cause nuisance tripping of the pressure switch(es). The amount of change can not be predicted. The selection of the inlet and outlet terminal locations are the responsibility of the designer/installer. If the installer chooses separate pressure zones for the terminals, the combustion air inlet termination must be in the higher (more positive) pressure zone.
Installer’s Guide
gVENT AND INLET AIR CONNECTIONS
Seal VENT PIPE with RTV sealant
Front of Furnace
Seal INLET AIR PIPE
with RTV sealant
IMPORTANT:
Products installed in Canada must use vent systems that are certified to the Standard for Type BH Gas Vent- ing Systems (ULC S636) for Class
UPFLOW/ HORIZONTAL VENTING TABLE
TABLE 10
MAXIMUM VENT LENGTH:
| DIRECT VENT (2 PIPE SYSTEM) - |
| NONDIRECT VENT (1 PIPE SYSTEM) | |||||
| MAXIMUM TOTAL EQUIVALENT FEET FOR | EQUIVALENT FEET FOR |
|
| ||||
| VENT AND INLET AIR PIPES (See Notes) | VENT PIPE ONLY (See Notes) |
|
| ||||
| 2" PIPE | 3" PIPE | 4" PIPE | 2" PIPE | 3" PIPE | 4" PIPE | ||
MODEL | & FITTINGS | & FITTINGS | & FITTINGS | & FITTINGS | & FITTINGS | & FITTINGS | & FITTINGS | & FITTINGS |
*UX1B040A9241A | 60 | 80 | 100 | 130 | 50 | 80 | 80 | 130 |
*UX1B060A9241A | 60 | 80 | 100 | 130 | 50 | 80 | 80 | 130 |
*UX1B060A9361A | 60 | 80 | 100 | 130 | 50 | 80 | 80 | 130 |
*UX1B080A9241A | 50 | 80 | 100 | 130 | 40 | 80 | 80 | 130 |
|
|
|
|
|
|
|
|
|
*UX1B080A9421A | 50 | 80 | 100 | 130 | 40 | 80 | 80 | 130 |
*UX1C080A9601A | NOT ALLOWED | 60 | 100 | 130 | NOT ALLOWED | 60 | 80 | 130 |
*UX1C100A9361A | NOT ALLOWED | 40 | 100 | 130 | NOT ALLOWED | 40 | 80 | 130 |
*UX1C100A9481A | NOT ALLOWED | 40 | 100 | 130 | NOT ALLOWED | 40 | 80 | 130 |
*UX1D100A9601A | NOT ALLOWED | 40 | 100 | 130 | NOT ALLOWED | 40 | 80 | 130 |
*UX1D120A9601A | NOT ALLOWED | 15 | 60 | 130 | NOT ALLOWED | 25 | 70 | 130 |
NOTES: * - First letter may be "A" or "T"
1. The INLET AIR of one pipe systems require the installation of a 90° elbow (to prevent dust and debris from falling straight into thefurnace) and a 2 foot horizontal or vertical straight pipe section connected before or after the elbow.
2. DO NOT MIX PIPE DIAMETERS IN THE SAME LENGTH OF PIPE OUTSIDE THE FURNACE CABINET (Except adapters at the top of the furnace).
If different inlet and vent pipe sizes are used, the vent pipe must adhere to the maximum length limit shown in the table above (See Note 7 below for exception). The inlet pipe can be of a larger diameter, but never smaller than the vent pipe.
3. MAXIMUM PIPE LENGTHS MUST NOT BE EXCEEDED! THE LENGTH SHOWN IS NOT A COMBINED TOTAL, IT IS THE MAXIMUM LENGTH OF EACH (Vent or Inlet air pipes in two pipe systems).
4. One standard radius 90° elbow is equivalent to 12' of 4" pipe; one SHORT radius 90° elbow is equivalent to 10' of 3" pipe and one LONG radius elbow is equivalent to 6' of 3" pipe. One SHORT/LONG radius 90° elbow is equivalent to 7½' of 2½" pipe, & 5' of 2" pipe. Two 45° elbows equal one 90°elbow.
5. The termination tee or bend must be included in the total number of elbows. If the BAYVENT100 termination kit is used, the equivalent length of pipe is 5 feet. There is zero equivalent length for the BAYVENT200.
6. Pipe adapters are field supplied.
7. 4" pipe may be reduced to 3" for termination with BAYAIR30AVENTA or BAYVENT200 without additional length restriction.
17 |
