ESC Installation, Operating, and Service Instructions
48
APPENDIX B2 – Direct Venting (continued)
Special Instructions for Stainless Steel Direct Vent (continued)
6. Install the intake air terminal supplied with
the boiler onto the outdoor end of the air
intake pipe per the instructions in Connect
Venting in this manual.
7. Install the vent terminal supplied with the
boiler onto the outdoor end of the vent pipe
per the boiler-specic instructions in Connect
Venting in this manual.
Vertical Stainless Steel Vent Installation
i
Storm collar, flashing and sealant for roof
penetration, and vertical vent tee for
collection of condensate are required for
vertical venting and are not supplied with the boiler.
1. Install vent and intake piping per Figures B-6
thru B-8.
2. Install the storm collar onto the vent pipe
immediately above the ashing.
3. Apply Dow Corning Silastic 732 RTV Sealant
between the vent pipe and the storm collar
to provide a watertight and heat-resistant
seal.
4. Install the vent terminal per the boiler-
specic instructions in Connect Venting in
this manual.
5. Install the air intake terminal per the boiler-
specic instructions in Connect Venting in
this manual.
6. An optional concentric adapter kit (P/N
100222-01 (3”) and 100223-01 (4”) is
available to accommodate both intake and
exhaust piping in a single roof penetration.
This kit is compatible only with Saf-T Vent
SC gas vent produced by Heat-Fab. Refer to
the installation instructions included with the
kit.
Figure B-6: Typical Vertical Stainless Steel Venting