Vent Pipe Runs
All Power Vented water heaters generate a certain amount of operational noise. In order to minimize noise transmission to floor joists though hangers, place some soft material such as foam rubber, approximately 12mm (1/2 in.) thick, between hangers and the vent pipes.
1. | Horizontal runs must not, under any circumstances, run |
| downhill then run uphill thus forming a valley where con- |
| densation can accumulate and block the vent pipe. |
2. | Horizontal runs require a minimum 3mm (1/8 in.) rise |
| per 1.5m (5 ft) and a support every 1.2m (4 ft.). Ensure |
| there is enough height between heater and termination |
| to raise vent pipe runs the required distance. |
3. | Vertical runs require a support every 1.5m (5 ft.) that |
| must provide proper support to prevent stress on the |
(a)
FOR 40 AND 50 GALLON HEATERS. | VENT PIPE | |
50mm (2 in.) | ||
BLOWER ASS’Y WITH RUBBER COUPLING | TOP GEAR | |
FOR 50mm (2 in.) NOMINAL ABS OR CPVC | ||
CLAMP | ||
VENT PIPE. | ||
| ||
PVC VENTING REQUIRES ADAPTOR KIT | RUBBER | |
COUPLING | ||
P/N 73901 (SEE FIGURE 14). | ||
BOTTOM | ||
| ||
| GEAR | |
| CLAMP | |
| BLOWER | |
| OUTLET | |
| FLANGE | |
| BLOWER |
pipes. |
Vent Pipe Connection to Blower
A rubber coupling is supplied with the water heater to con- nect the venting to the blower using gear clamps (supplied). Important: These connections must be properly sealed to prevent the leakage of the products of combustion into the living area.
Rubber Coupling Connection
(b)
FOR 40 AND 50 GALLON HEATERS. BLOWER ASS’Y WITH RUBBER COUPLING FOR 76mm (3 in.) NOMINAL ABS OR CPVC VENT PIPE.
PVC VENTING REQUIRES ADAPTOR KIT P/N 73901 (SEE FIGURE 14).
VENT PIPE 
76mm (3 in.)
REDUCER
76mm - 50mm
(3 in. - 2 in.)
ABS and CPVC vent piping may be directly connected to the blower assembly as shown in Figures 15 & 16. For heaters installed as shown in Figure 15 (c), order 50mm (3 in.) rub- ber coupling connector (P/N 63234).
PVC vent pipe installations must use a PCV vent conversion kit as shown in Figure 14. Order PVC Vent Conversion Kit P/N 73901 for 50mm (2 in.) vent pipe installations. For 76mm (3 in.) vent pipe installations order PVC Vent Conversion Kit P/N 73876.
1. | Clean and lightly sand the end of the vent pipe that will |
| connect to the rubber coupling. This will ensure a good |
| mechanical connection between the coupling and the |
| pipe. |
2. | Apply solvent cement and join the PVC coupling of the |
| adaptor to the venting system. (PVC Only). |
3. | At the rubber coupling, loosen the upper gear clamp to |
| allow the vent piping to be inserted fully 32mm |
(c)
FOR 40 AND 50 GALLON HEATERS. BLOWER ASS’Y WITH RUBBER COUPLING FOR 76mm (3 in.) NOMINAL ABS OR CPVC VENT PIPE.
PVC VENTING REQUIRES ADAPTOR KIT P/N 73876 (SEE FIGURE 14).
VENT PIPE 
76mm (3 in.)
RUBBER
COUPLING
P/N 63234
in.) deep. Do not use sealant or glue. |
Figure 15 Blower, Fittings and Vent Pipe Options
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| PVC PIPE |
|
|
|
| ||||||
|
|
|
|
| COUPLING |
|
|
|
|
|
|
|
| ||
|
|
|
|
|
|
|
|
|
|
|
| 76mm (3 in.) |
|
| MODEL 5065 HEATERS. BLOWER |
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||
| 50mm (2 in.) |
|
|
|
|
|
|
|
|
|
| ADAPTOR |
|
| |
|
|
|
|
|
|
|
|
|
|
| ASS’Y WITH RUBBER COUPLING FOR | ||||
| ADAPTOR |
|
|
|
|
|
|
|
|
|
| FOR PVC |
|
| |
|
|
|
|
|
|
|
|
|
|
| 76mm (3 in.) NOMINAL ABS, CPVC OR | ||||
| FOR PVC |
|
|
|
|
|
|
|
|
|
| (P/N 73876) |
|
| |
|
|
|
|
|
|
|
|
|
|
| PVC VENT PIPE. | ||||
| (P/N 73901) |
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||
|
|
|
|
|
|
|
|
|
|
|
|
| |||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
| PIPE |
|
|
|
| |||||
|
|
|
|
|
| (CPVC) |
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
| |||
|
|
| UPPER GEAR |
|
|
|
| ||||||||
|
|
|
|
| CLAMP |
|
|
|
|
|
|
| |||
|
|
|
|
|
|
|
|
|
|
|
|
| |||
|
|
|
|
|
| RUBBER |
|
|
|
| |||||
|
|
|
|
|
| ADAPTOR |
|
|
|
|
|
| |||
|
|
|
|
|
|
|
|
|
|
| |||||
|
|
|
|
| LOWER |
|
|
|
| ||||||
|
|
|
| GEAR CLAMP |
|
|
|
|
| ||||||
Figure 14 Pipe Assembly Adaptors |
|
|
| Figure 16 Blower, Fittings and Vent Pipe Options | |||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
| 14 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| – | – | |
