Sapphire Audio DV425TR owner manual VERTICAL INSTALLATION, cont, Usa Only, Step

DV425TR DIRECT VENT ROOM HEATER

VERTICAL INSTALLATION, cont.

INSTALLATION INTO AN EXISTING MASONRY CHIMNEY, cont.

(USA ONLY)

Step 3.

Secure the flashing (SDV #705C) to the top of the masonry chimney using a bead of non-hardening sealant-adhesive. If the flashing is larger than the top of the chimney, cut and fold flashing as needed to fit chimney (Figure 23).

Step 4.

To determine the length of flex needed,

measure from 3” (76mm) above the top of the flashing down to the level of the opening. Add the distance from the center of the chimney out through the

wall. Cut a piece of 4” (102mm) flex to this

length (extended to its nominal length). Be sure to leave 2”-3” (51mm-76mm) of flex above the existing chimney to allow for connection to the termination kit.

CUT AND BEND FLASHING AS NEEDED TO FIT CHIMNEY

Fig. 23

SEALANT-ADHESIVE

Step 5.

Connect the flex liner to the top adapter using three (3) sheet metal screws (see Figure 19, page 44).

Step 6.

Feed the flex liner through the flashing into the chimney. Carefully feed the flex liner down the chimney to the bottom and out the opening in the masonry wall, forming an angle to line up the flex liner with the vent opening on the appliance.

WARNING: Do not let the flex liner sag below the level at which it will connect to the appliance or connector. This could allow hot gas to become trapped and potentially become a fire hazard. The flex liner path should always be sloped up toward the termination cap.

02/01 Page 41 250-5533