Archgard 42-DVT40N - Manual (Page 16)

Northfire 42
16
INSTALLATION INSTRUCTIONS Cont...
For best venting performance, here are some general venting rules that we recommend:
1. Use only Archgard or Simpson Dura Vent direct vent systems and components.
2. Maintain a minimum of 1” (26 mm) clearance to combustibles from the outside surfaces of
vertical vents and minimum of 1” (26 mm) sides and bottom, and 2” (51 mm) from top surfaces
of horizontal vents.
3. Observe any local code restrictions, if any, regarding the installation of this type of gas
appliance.
4. Observe the venting chart given in this manual.
5. Use vent spacers between the inside and outside vents at every 3 ft (915 mm) intervals
(Archgard vent kits only).
6. Never slope horizontal vents downwards.
7. Maintain at least a rise of ¼” (7 mm) for every 1 ft (305 mm) of horizontal vent.
8. Terminate the vent with a suitable vent termination supplied by Archgard Part #999-DV-HTC or
Simpson Dura Vent.
9. Support horizontal vents every 3 ft (915 mm) to prevent it from sagging.
VENTING - Continued
VENTING CONNECTION
The intake pipe must be securely fastened to the appliance and to the terminal and all joints
shall be secured using a minimum of 3 screws evenly spaced around the pipe.
Approximately 1” from the end of the 4” pipe outlet at the appliance and at the 4” terminal inlet
apply a bead of Mil Pac ¼” wide. Slide the 4” pipe onto the appliance and secure with 3 screws
evenly spaced to the outlet. Repeat the procedure at the terminal inlet.
Install a vent spacer between the outer and the inner liner to maintain clearances. Spacers
should be installed at every change of direction. (See diagram)
Clearance to combustible material and fire-stops must be installed as required by the installation
codes.
APPROVED VENT COMPONENTS
PART # DESCRIPTION
999-DV-TVK3 Flex Vent Kit with 36” vent length (includes 999-DV-HTC)
999-DV-TVK5 Flex Vent Kit with 60” vent length (includes 999-DV-HTC)
999-DV-HTC Horizontal termination head only
999-DV-VSD Vinyl siding deflector
999-DV-STC 24” Snorkel
999-DV-SDA Adaptor, Flex to Simpson Dura-Vent
999-DV-SDA Adaptor, Appliance to Simpson Dura-Vent
DV-GS Simpson Dura-Vent venting system