Installation Guide
10
IV. Venting
A. Install Draft Hood without modication on outlet of
ue collector. See Figure 1. Secure with sheet metal
screws.
WARNING
Do not alter boiler draft hood or place any
obstruction or non-approved damper in the
breeching or vent system. Flue gas spillage can
occur. ETL certication will become void.
B. Install Blocked Vent Switch. The Blocked Vent Switch
Assembly shipped taped to top of boiler includes power
cord and switch attached to mounting bracket.
1. Untape Blocked Vent Switch Assembly from top of
boiler. Uncoil power cord.
2. Position mounting bracket onto lower edge of Draft
Hood skirt. Locate center tooth (with #10 sheet
metal screw) on outside and other two teeth inside
Draft Hood skirt. See Figure 7.
3. Slide mounting bracket tight against lower edge of
Draft Hood skirt. Position #10 sheet metal screw
above skirt's stiffening rib.
4. Secure bracket in position by tightening #10 sheet
metal screw against outer surface of Draft Hood
skirt.
5. Verify power cord, mounting bracket and Blocked
Vent Switch are secure and located as shown in
Figure 7.
WARNING
Failure to properly install and use this Blocked
Vent Switch may result in property damage,
personal injury or loss of life.
C. Install Vent Damper
OPEN THE VENT DAMPER CARTON and remove the
Installation Instructions. READ THE INSTALLATION
INSTRUCTIONS THOROUGHLY before proceeding.
WARNING
The pilot vent plug must be installed per the
Installation Instructions.
The automatic gas control valve supplied on each RRG
Series boiler provides the redundancy referenced in the
vent damper Installation Instructions.
CAUTION
Do not use one vent damper to control two heating
appliances.
Figure 7: Vent Damper Installation