Negative Pressure; Chimney And Exhaust Connection - Quadra-Fire CLASSIC BAY 1200 Installation Manual

D. Negative Pressure
WARNING
Risk of Asphyxiation!
Negative pressure can cause spillage of combustion
fumes and soot.
Negative pressure results from the imbalance of air
available for the appliance to operate properly. It can be
strongest in lower levels of the house.
Causes include:
• Exhaust fans (kitchen, bath, etc.)
• Range hoods
• Combustion air requirements for furnaces, water
appliances and other combustion appliances
• Clothes dryers
• Location of return-air vents to furnace or air
conditioning
• Imbalances of the HVAC air handling system
• Upper level air leaks such as:
- Recessed lighting
- Attic hatch
- Duct leaks
To minimize the effects of negative air pressure:
• Install the outside air kit with the intake facing prevailing
winds during the heating season
• Ensure adequate outdoor air for all combustion
appliances and exhaust equipment
• Ensure furnace and air conditioning return vents are
not located in the immediate vicinity of the appliance
• Avoid installing the appliance near doors, walkways or
small isolated spaces
• Recessed lighting should be a "sealed can" design
• Attic hatches weather stripped or sealed
• Attic mounted duct work and air handler joints and
seams taped or sealed
June 4, 2019
E. Chimney and Exhaust Connection
1. Chimney & Connector: Use 3 or 4 inch (76-102mm)
diameter type "L" or "PL" venting system. It can be
vented vertically or horizontally.
NOTE: The appliance exhaust outlet is designed to
accommodate 3 inch venting. Use of 4 inch
venting requires the use of a 3-to-4 inch exhaust
vent increaser in addition to any other venting
components needed, sold separately.
2. Mobile Home: Approved for all Listed pellet vent. If
using the 3 inch (76mm) vertical Top Vent Adapter Kit
or the 3 to 6 inch (76-152mm) Top Vent Offset Adapter,
use Listed double wall flue connector. A Quadra-
Fire Outside Air Kit must be used with manufactured
home installations.
3. Residential: The 3 inch (76mm) vertical Top Vent
Adapter Kit and the 3 to 6 inch (76-152mm) Top Vent
Offset Adapter are tested to use 24 gauge single wall
flue connector or Listed double wall flue connector to
Class A Listed metal chimneys, or masonry chimneys
meeting International Residential Code standards for
solid fuel appliances.
4. INSTALL VENT AT CLEARANCES SPECIFIED BY
THE VENT MANUFACTURER.
5. Secure exhaust venting system to the appliance with
at least 3 screws. Also secure all connector pipe joints
with at least 3 screws through each joint.
6. DO NOT INSTALL A FLUE DAMPER IN THE
EXHAUST VENTING SYSTEM OF THIS Appliance.
7. DO NOT CONNECT THIS Appliance TO A CHIMNEY
FLUE SERVING ANOTHER APPLIANCE.
NOTE: All pipe must be welded seam pipe whenever
possible. Seal pipe joints with high temperature
silicone (500°F [260°C] minimum rated only).
USE ONLY RECOMMENDED VENTING
COMPONENTS; OTHERWISE MAKESHIFT PARTS MAY
RESULT IN PROPERTY DAMAGE, PERSONAL INJURY,
OR DEATH.
7027-801C
CB1200 Free Standing
WARNING
15