Sapphire Audio DV425TR owner manual Installation Into An Existing Masonry Chimney, Usa Only, Step

DV425TR DIRECT VENT ROOM HEATER

VERTICAL INSTALLATION, cont.

INSTALLATION INTO AN EXISTING MASONRY CHIMNEY

(USA ONLY)

Step 1.

Before cutting any holes, assemble the desired sections of direct vent pipe to determine the center of the masonry penetration.

Step 2.

Once the center point of the penetration has been determined, cut a 6” (152mm) diameter hole in the masonry. If the hole is too large, the retro connector might not mount properly; if the hole is too small, the appliance might starve for intake air. If there is a frame wall in front of the masonry wall, cut and frame a 10” (254mm) square opening in the wall (centered around the 6” [152mm] masonry opening). If there is sheet rock only (no studs) in front of the masonry the 10” (254mm) opening is still needed, but does not need to be framed. This allows the retro connector to mount directly on the masonry and provide the correct clearances

to combustibles (see Figure 22).	STUDWALL
	10" x 10" FRAMED
	OPENING IN WALL
	MASONRY
	CHIMNEY
Fig. 22	RETRO
	CONNECTOR

WALL THIMBLE

COVER

(4)MASONRY BOLTS (NOT INCLUDED)

NOTE: FOR HEARTH

APPLICATIONS REFER TO

PAGE 24 FOR THE USE

OF THE 923GCL CO-AXIAL

TO CO-LINEAR APPLIANCE

CONNECTOR.

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