11.Dry fit all vent pipes, elbows, connectors and fittings before joining any parts with solvent cement. PARTS MUST FIT WITHOUT STRESS OR BENDING OF ANY SECTION and each connection must overlap a mini- mum of 13mm (1/2 in.). Do not force fit any of the con- nections. Use only the appropriate solvent cement.
Caution: Solvent cements may produce flammable vapours. Use only in
12.For 50mm (2 in.) venting, install the properly sized rodent screen into the 50mm (2 in.) outlet elbow and secure with a small quantity of silicone sealant.
13.Outlet elbows for 76mm (3in) are installed with a metal rodent screen.
14.Do not seal the vent piping to the wall until the venting is properly connected to the blower assembly.
Vent pipe connection to blower
1.The plastic vent piping connects into the rubber cou- pling located on the top of the blower assembly. This coupling includes gear clamps to connect the venting to the blower. These connections must be properly seated and tightened to prevent the leakage of flue gases into the area. See Figures 15 & 15a.
2.All G/JW 40, 50 and 60 gallon models, except
3.For G/JW 40, 50 and 60 gallon installations using 76mm (3 in.) PVC or CPVC vent pipe, remove the 76mm (3 in.) to 50mm (2 in.) transition coupler from the rubber cou- pling and connect the vent pipe directly to the rubber coupling. See Figure 15a.
4.G/JW5065 hi input models are supplied with a 76mm (3 in.) rubber coupling and are designed to accept PVC or CPVC vent pipe directly, as shown in Figure 15.
5.Clean and lightly sand the end of the CPVC plastic vent pipe or PVC transition coupler that will connect into the rubber coupling.
6.Loosen the upper clamp on the rubber coupling and insert the sanded end of the CPVC vent pipe or the PVC transition coupler a full 32mm
* These parts are available from your water heater supplier.
7.Tighten the upper clamp so that the vent pipe is firmly secured in the coupling and is gas tight. Do not over tighten or cause distortion of any of the parts. Ensure that the bottom of the rubber coupling is firmly seated on the blower outlet and that the lower gear clamp is also secure. Check to ensure that there is no distortion or movement of the clamped assembly once it is com- pleted.
8.Complete the venting installation by sealing around the termination assembly where it passes through the out- side wall, inside and out, with silicone or other suitable sealant.
CAUTION:
•Do Not Overtighten The Top And Bottom Gear Clamps Of The Rubber Coupling.
•Do Not Apply Solvent Cement Or Silicone To The Rubber Coupling Connection.
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| VENT PIPE |
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| 50mm (2 in.) |
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| 76mm (3 in.) |
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NON | MODEL | 150mm (6 in.) |
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MIN. TO 1ST |
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HEATERS. BLOWER ASS’Y | ELBOW |
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| HEATERS. BLOWER ASS’Y | ELBOW |
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WITH RUBBER COUPLING |
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AND | TRANSITION COU- |
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| FOR 76mm (3 in.) NOMINAL |
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PLER | FOR 50mm (2 in.) |
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| CPVC OR PVC VENT PIPE. |
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NOMINAL CPVC | OR PVC |
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VENT PIPE. |
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| COUPLER |
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| RUBBER |
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Figure 15a | Blower, Fittings and Vent Pipe Options |
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| Figure 15 Blower, Fittings and Vent Pipe Options |
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