Typical Installation; Exhaust Pipe Specifications - FOGATTI FDG370IN Manual

1. Determine the installation location (see
installation precautions) and determine the
installation height. The height of the water
heater's operation display panel and the
human eye level are appropriate.
2. When installing the water heater, keep it
vertical and do not tilt.
3. As shown on the right, first install the
mounting hole on the wall. The upper
mounting hole is fixed by the expansion
screw, and the lower mounting hole is
inserted into the plastic plug. Hang the water
heater, place the washer and nut on top, and
tighten the nut. Screw on the self-tapping
screws below.
Precautions for installation of exhaust pipe:
1. The exhaust pipe must be installed when
the water heater is used.
2. The elbow and the straight pipe are
combined into a smoke exhaust pipe. One
elbow is equivalent to
total length of elbows and straight pipe must
not exceed 37 ft (11.5 m)
3. The installation of gas water heater pipe
should be outward and downward the slope
of 3° is such that when the outdoor
temperature is too low, the condensed water
does not flow back into the interior of the
water heater.
4. When the flue passes through a wall made
of combustible materials, it must be covered
with an insulating flame retardant material
greater than 1 inch thick.
17

Typical Installation

6 ft(1.8m) . But the
.
Tankless Gas Hot Water Heater
Expansion screw
Plastic plug
Installation method
The flue duct should have
a slope of 3° outward and downward
Straight
pipe
The total length of elbows and straight
pipe must not exceed 37 ft ( 11.5 m ).
Installation Manual
Wooden screws
Elbow