Heatiator HEIR50H, HEIR42H, HEIR42T B. Secure the Vent Sections, C. Disassemble Vent Sections

B. Secure the Vent Sections

•Vertical runs of DVP pipe must be supported every 8 ft. (2.44 m) after the 25 ft. (7.62 m) maximum unsupported rise.

•Horizontal sections must be supported every 5 feet (1.52 m).

•Vent supports or plumbers strap (spaced 120º apart) may be used to support vent sections. See Figures 10.5 and 10.6.

•Wall shield firestops may be used to provide horizontal support to vent sections.

WARNING! Risk of Fire, Explosion or Asphyxiation! Improper support may allow vent to sag and separate. Use vent run supports and connect vent sections per in- stallation instructions. DO NOT allow vent to sag below connection point to appliance.

120º

Figure 10.5 Securing Vertical Pipe Sections

120º

Figure 10.6 Securing Horizontal Pipe Sections

C. Disassemble Vent Sections

•Rotate either section (see Figure 10.7) so the seams on both pipe sections are aligned as shown in Figure 10.8.

•Pull carefully to separate the pieces of pipe.

Figure 10.7 Rotate Seams for Disassembly

Figure 10.8 Align and Disassemble Vent Sections

Heatilator • HEIR36, HEIR42, HEIR50 • 2285-900 Rev. D • 8/12 41