Midco EC200 & EC300 - Manual (Page 4)

4
Midco International Inc.
8471 38
- Before permanently setting the burner in place, check that the burner nozzle is free of foreign
materials and that the electrodes have not been damaged or displaced, see Figure 8.
___________________________
WARNING: The chimney should be inspected for unsafe conditions such as
deteriorated masonry and excessive soot or other blockage. Installation must conform with
local codes. In the absence of local codes, the recommendation installation compliance is
with ANSI Z21.8b latest edition and NFPA, ANSI Z223.1 latest edition.
WARNING: The Vent Connector shall not be connected to a chimney that is
venting solid fuel
burning from any
equipment, any
incinerator or any
open fi replace.
- The Vent
Connector shall
be made of non-
combustible,
corrosion resistant
material capable of
withstanding the vent
gas temperature
produced by the
appliance and of
suffi cient thickness
to withstand physical
damage.
- The
Vent
Connector shall be
as short as possible.
The entire length
shall be readily
accessible for
inspection, cleaning
and replacement.
- The
length
of horizontal uninsulated Vent
Connector between chimney and
a single gas utilization equipment
shall not exceed 75% of the
height of the chimney above the
connector, or 100% if the Vent
Connector is insulated.
-
The Vent Connector shall
be installed so as to avoid turns
or other construction features
which create excessive resistance
to fl ow of vent gas. It shall be
installed without any dips or sags
and shall slope upward at least
1/4″ per foot.
-
A manually operated damper
shall not be placed in the Vent
Connector or chimney of any gas
utilization equipment.
-
The Vent Connector shall
be fi rmly attached to draft hood
outlets and fl ue collars. Joints
between sections of connector
piping shall be fastened by sheet-
Part 1 Installation
IV - Chimney, Vent
Connector, and Draft
Control
III - Combustion Chamber
Continued
CORRECT LOCATIONS
INCORRECT LOCATIONS
Figure 3: Draft Hoods
Figure 4: Location for Barometric Draft Regulator
Figures 3 and 4: Copyright by the American Gas Association. Used by
permission of the copyright holder.