Venting | 2. Install "Rodent Screen" in the termination elbow as | ||||||
This water heater has a power vent system that discharges |
| shown in Figure 7 and fasten in place using silicone | |||||
all it's combustion products outdoors. The heater must be |
| sealant. | |||||
properly vented for removal of exhaust gases. Correct | Note: Apply only enough sealant to hold the screen in place | ||||||
installation of the vent pipe system is mandatory for the safe | inside the termination elbow. This will allow for annual | ||||||
and efficient operation of this water heater and is an impor- | screen removal, inspection and cleaning of the vent pipe | ||||||
tant factor in the life of the unit. | system of any lint or debris. | ||||||
Vent pipe must be installed in accordance with all local and | 3. Fit the termination elbow to a short length of vent pipe | ||||||
provincial or state codes or, in the absence of such, the lat- |
| 600mm (2 ft.) min., 1.5m (5 ft.) max. and join with sol- | |||||
est edition of "Natural Gas and Propane Installation |
| vent cement. | |||||
Code" | 4. Push this termination assembly through the wall from | ||||||
Code" ANSI Z223.1 (NFPA 54) (U.S.A.). |
| the outside until the joint with the elbow is within 25mm | |||||
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| - 50mm (1 in. - 2 in.) of the outside face of the wall. | |||||
Note: Do not common vent this water heater with any other | 5. Point the elbow down and temporarily hold the assem- | ||||||
appliance. Do not install in the same chase or chimney with |
| bly in position with a small wedge or a splinter of wood. | |||||
a metal or |
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burning appliance. |
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OUTSIDE OF | |||||||
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Vent Pipe Material |
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| INSIDE OF | ||
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• This heater has been certified to use Schedule 40 ABS, |
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PVC or CPVC venting material. |
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• Check local codes to determine which materials are |
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allowed in your area. |
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| TERMINATION ELBOW |
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• Use only solid (not foam core) piping. All materials must |
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be of the same type for any given installation and must be joined with the proper primer/cleaner and solvent cement. See Table 2 for vent lengths and sizing.
•Canadian installations using PVC venting require the
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| PVC Vent Conversion Kit P/N 73901 or P/N 73876. |
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| SILICONE SEALANT | ||||||||||||
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• U.S.A. installations using PVC piping shall use the pipe |
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| RODENT SCREEN | ||||||||||||||||
| assembly adaptor supplied with the heater. |
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See also “Vent Pipe Connection to Blower”. |
| Figure 7 Vent System Termination | |||||||||||||||
Vent Pipe Termination |
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| If a Vent Riser is Required | |||||||||||
A "Rodent Screen" must be installed in the termination |
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elbow to prevent foreign objects from entering the venting |
| 1. Fabricate the vent riser to lift the termination elbow to | |||||||||||||||
system. The plastic screens (see Figure 6) supplied with |
| the height required. | |||||||||||||||
this water heater are designed for use as the vent termina- |
| 2. Fasten the vent riser assembly to the outside wall with | |||||||||||||||
tion "Rodent Screen". Refer to Figures 8 & 9 for information |
| brackets (see Figure 9). Brackets to be supplied by | |||||||||||||||
regarding the vent termination. After determining the total |
| installer. | |||||||||||||||
equivalent length of vent pipe for your installation, (see |
| 3. Extend the horizontal run of pipe a convenient distance | |||||||||||||||
Table 2), use the appropriate "Rodent Screen" to obtain the |
| through the wall to make further work easy. | |||||||||||||||
best possible efficiency. Install only one of the two options |
| 4. Connect the vent riser assembly to the rest of the vent- | |||||||||||||||
listed in Figure 6. |
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| ing system. | ||||||||||
1. Drill a hole through the exterior wall, slightly larger than |
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| the vent piping, to allow for final alignment of the vent |
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| piping to the heater. |
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| CAUTION: | ||||||
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| Use of Solvent Cement and Primer | ||||||
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| • Use only in | ||||||
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| • Do not use near flame or open fire. | ||||||
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| • Use only the Solvent Cement and Primer | ||||||
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| appropriate for the venting material being | ||||||
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| used. | ||||||
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| • Solvent cements for plastic pipe are flam- | ||||||||||
| VENT LENGTH LESS THAN OR | VENT LENGTH GREATER THAN 20 | |||||||||||||||
| EQUAL TO 20 EQUIVALENT FEET |
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| EQUIVALENT FEET USE THIS |
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| mable liquids and must be kept away from | ||||||||||
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| USE THIS SCREEN. |
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| SCREEN. |
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| all sources of ignition. | ||||||||
| Figure 6 Rodent Screens |
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| 11 | ||||||||||
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