Installation Guide
Page 10 INSTALLATION MANUAL ECO-55 / ECO-55 CT / ECO-55 ST
ENGLISH
Here is an example to help you calculate Equivalent
Vent Length. On the following gure the EVL can be
calculated like this:
2 feet of horizontal run (2 X 1' EVL) = 2' of EVL
90° elbow or "Tee" (1 X 5' EVL) =5' of EVL
12 feet of vertical run
(12' X 0.5' EVL)
= 6’ of EVL
Termination cap = 0' of EVL
Total EVL = 13' of EVL
Since the total EVL is less than 15 feet, the re-
commended exhaust venting diameter is 3".
4.3.2 INSTALLATION COMPLIANCE
To determine if your installation is compliant, the
exhaust venting system must end within the grid on
the venting system chart. The previous installation
has 2 feet of horizontal run and 12 feet of vertical
run. It is thus standard since the venting system ends
in the gridded area.
CAUTION
• Horizontal runs shall not exceed 9 feet.
• Never exceed 30 feet of evl.
CAUTION
TO REDUCE THE RISK OF SMOKE SPILLAGE
THERE SHOULD ALWAYS BE AT LEAST ONE
FOOT OF VERTICAL RISE FOR EACH FOOT OF
HORIZONTAL RUN. IN ALL CASES, AT LEAST 3
FEET OF VERTICAL RISE IS NEEDED.
WARNING
TERMINATION OF A SIDE WALL VENT SHOULD
BE LOCATED TO AVOID PERSONAL BURN
INJURY, FIRE HAZARD AND INTERFERENCE
WITH OR DAMAGE TO ADJACENT
PROPERTIES. EXHAUST GASES CAN REACH
TEMPERATURES OF 500°F (260°C) AND CAUSE
SERIOUS BURNS.
WARNING
TERMINATION COLLAR (SPARK ARRESTER)
IS MANDATORY AND MUST BE CLEAR OF ANY
DEBRIS AT ALL TIME.