c.Tighten locking band by HAND with a 5/16” nut driver until snug plus ¼ turn. DO NOT SECURE JOINTS WITH SHEET METAL SCREWS OR POP RIVETS. DO NOT PUNCTURE THE VENT SYSTEM!
d.Once the installation is complete, operate appliance and inspect all joints to ensure that flue gases and/or liquid condensate will not escape.
D.Horizontal Venting System. See Figures 4, 4A and 5.
Vent Piping –
1.This boiler is supplied with components as standard equipment for installation of the separate horizontal venting system.
2.Do not exceed maximum vent lengths. Refer to Table 4.
3.Recommended horizontal installation consists of vent being sloped down ¼ inch per foot away from boiler. See Figures 4 and 4A.
4.Use appropriate designed thimbles when passing through combustible walls (thimble use optional for noncombustible walls). Insert thimble through wall from outside. Secure outside flange to wall with nails or screws, and seal ID, OD and vent holes with sealant material. Install inside flange to inside wall, secure with nails or screws, and seal with sealant material.
5.For noncombustible wall application when thimble is not used, size opening such that bell with locking band attached cannot pass through.
6.Join vent terminal to vent pipe. See Figure 5.
7.Insert vent pipe through thimble/opening from outside and join to vent system. Apply sealant between vent pipe and opening/thimble to provide weathertight seal.
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