VERTICAL TERMINATIONS (CONT.)
INSTALLATION INTO AN EXISTING MASONRY CHIMNEY (CONT.)
Step 9. Attach the flex to the retro connector. Use three sheet metal screws to attach the flex liner to the connector (Figure 26). Mount the retro connector to the masonry wall using masonry bolts. Redrill larger holes on connector as needed. Be careful to insure that the connector is centered in the opening and the mounting holes line up with the masonry wall.
Step 10. | Slide wall thimble cover (SDV #940) over |
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| retro connector and secure with masonry |
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| bolts (Figure 27). If you have a framed wall |
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| in front of the masonry, use wood screws to |
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| mount wall thimble cover to framed wall, |
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| over retro connector and 10” (254mm) |
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| square framed opening (Figure 22). If |
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| needed, add a section of direct vent pipe to |
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| the retro connector in order to extend |
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| through the opening in the wall thimble |
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| cover. |
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Step 11. | The connection between the appliance and |
| FIG. 26 |
| the retro connector may be completed with |
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| sections of direct vent pipe. |
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Step 12. | Move the appliance into the desired location. |
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WARNING: IF ANY OTHER APPLIANCES HAVE BEEN PREVIOUSLY ATTACHED TO THIS MASONARY FLUE OR AN OPEN FIREPLACE, ETC., ALL OPENINGS INTO FLUE SHOULD BE SEALED PROPERLY. IT IS VERY IMPORTANT THAT THERE IS ONLY ONE APPLIANCE ON A VENT SYSTEM AND THAT THERE ARE NO AIR LEAKS INTO THE MASONRY CHIMNEY ITSELF OTHER THAN THE VENT APPLIANCE VENTING.
FIG. 27
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