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Product Support: Eccotemp.com/help-desk Shop Online: Eccotemp.com/products Store Locater: Eccotemp.com/locater
Phone: 866-356-1992 | Email: [email protected] | Address: 315 - A Industrial RD Summerville, SC 29483
PLEASE NOTE: THIS MANUAL IS SUBJECT TO CHANGE AT ANYTIME, TO ENSURE THIS MANUAL IS UP TO DATE PLEASE VISIT OUR HELPDESK AT WWW.ECCOTEMP.COM
FOR ALL OF OUR PRODUCT MANUALS.
PLEASE NOTE: THIS MODEL IS FOR INDOOR PERMANENT INSTALLATIONS ONLY.
Installing the water heater, Continued....
Venting Lengths
MAXIMUM VENT LENGTH
The system will not operate if there is excessive restriction
(pressure drop) in the venting system. A maximum of 32 feet of
vent pipe may be used provided there is only one 90° elbow in the
system. If additional elbows are required: two elbows can be used
with 27 feet, and three elbows can be used with 22 feet of vent
pipe.
A 90° elbow is equivalent to 5 feet of straight pipe. A 45° elbow is
equivalent to 2 feet 6 inches of straight pipe .
The termination elbow does not count as an elbow when
determining total vent lengths.
The vent must be installed with a slight downward slope of 1/ 4”
per foot of horizontal run toward the vent terminal (see diagram
below). This ensures that any condensate formed during operation
of the unit is evacuated from the appliance
A 1/4” per foot upward slope is acceptable when it is not possible
to vent with a downward slope, however, a approved Category III
Stainless Steel condensate trap MUST be installed at the beginning
of the horizontal run (See page 20 “Typical Horizontal Termination
w/ 1/4” per foot UPWARD Slope” or page 14, “Standard Vertical
Vent Termination” for examples).
Number of
90° elbows
(bends)
Maximum
Length of
Straight Pipe
1
2
3
32’
27’
22’
One (1) 90° Elbow is
Equivalent to 5 Feet of
Straight Pipe
MINIMUM VENT LENGTH
The venting may be as short as 12”,
provided one vent termination is
installed to the outdoors through a
sidewall, one 90°elbow is included in
the installation, and the wall thimble
is installed.
NOTICE: Make sure that the seam
of the vent pipe in horizontal runs
is toward the top of the installation
(see illustration to the left)
Draining the Condensate
In certain conditions, installations in unconditioned space or having long horizontal or vertical runs
may accumulate condensate.
Condensate is known to be acidic; refer to local, state (provincial) or federal codes for proper
handling methods.
In order to prevent condensate from draining back into the water heater, we recommend a
condensate trap and drain to be installed in a horizontal vent section as close as practical to the
water heater vent connection.
Not following proper condensate procedures will void warranty.
12 in. minimum
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