R
DV400S DIRECT VENT ROOM HEATER
Figure 6 - Insertion of Vent Pipe
WALL | STRAP |
THIMBLE |
|
Figure 7 - Decorative Wall Thimble
Wood Screws |
Figure 8 - Vinyl Standing Standoff
VINYL
SIDING
APPLY SEALANT TO ALL
FOUR SIDES
SCREW
BOLT HORIZONTAL
TOP TO VINYL
STANDOFF
VINYL SIDING
STANDOFF
B. Vertical Termination.
The following figures are the maximum distances from the top of the unit, as well as the minimum air space clearances that must be maintained: Maximum straight unsupported rise - 25'; Maximum height - 40' from the top of the unit. Maximum horizontal unsup- ported run - 3'; air space clearances around vertical venting - 1" on all sides; air space clearances around horizontal venting - 11⁄2" on top and 1⁄2" on sides and bottom. If an elbow is being used in an enclosed wall, floor, or ceiling a top air space clearance of
3" must be maintained. These clearances must be maintained at all times.
1. Position the Heater.
Position the heater in its desired location. Maintain all clearances to combustibles.
2. Preparing the Ceiling.
Drop a plumb bob down from the ceiling to the posi- tion of the heater flue exit and mark the location where the vent will penetrate the roof. Drill a small hole at this point. Next drop a plumb bob from the roof to the hole previously drilled in the ceiling and mark the spot where the vent will penetrate the roof. Determine if ceiling joists, roof rafters, or other fram- ing will obstruct the venting system. You may wish to relocate or offset the appliance to avoid cutting load bearing members.
To bypass any overhead obstructions the vent sys- tem may be offset using a 45° elbow or a 90° elbow. Vent stabilizers have straps for securing these parts to joists or rafters. lumbers tape may be purchased locally and used in conjunction with vent stabilizers. See Fig. 9.
3.Assembling vent sections. Only use vent sup- plied and listed for use with this Heater.
Figure 9 - Elbows with Stabilizer
90¡ ELBOW
90¡ ELBOW
VENT
STABILIZER
March 4, 2002 | Page 14 | 30211C |
