Nortek AB 175, Установка, эксплуатация и запасные части

Страница: 12 / 24

Form I-A C (2-17), Page 12
PLAN VIEW
Alternate
Position
90° Bend
Fan to 6”dia
(152 mm)
flue adapter
(supplied)
Flue passes
through
mounting
bracket
Exhaust
(vent)
Terminal
Pipe diameter and length requirements shown below are for the indoor sections of
pipe between the unit and the vent terminal section. This information applies to both
horizontal and vertical vents. Add all straight length sections and elbow(s) to obtain a
total length. Maximum total length not to exceed 30ft (9.1M).
A minimum of 12” (30 mm) of straight pipe is required at the vertical outlet before
installing an elbow in the vent system. An elbow should never be attached directly to
the venter. An elbow attached to the straight pipe can be in any position at or above
the horizontal.
Model
Pipe Diameter
Maximum
Length
Equivalent Straight Lgth for __
Vent Pipe 90°Elbow 45°Elbow
inch mm feet M feet M feet M
AB 175 6 152.4 30 9.1 8 2.4 4 1.2
AB 225
6 152.4 30 9.1 8 2.4 4 1.2
Any length of single-wall pipe exposed to cold air or run through an unheated area or
an area with an ambient temperature of 45°F (7.2°C) or less, must be insulated along
its entire length with a minimum of 1/2” (13 mm) foil-faced fiberglass, 1-1/2# density
insulation. Where extreme conditions are anticipated, install a means of condensate
disposal.
Provide pipe as specified Vent Pipe Section and seal joints as follows:
•
If using Category III vent pipe run , follow the pipe manufacturer’s instructions for
joining and sealing Category III vent pipe sections.
•
I f using single-wall, 26-gauge or heavier galvanized vent pipe run , secure slip-fit
connections using sheet metal screws or rivets. Seal all joints with high temperature
aluminum tape or silicone sealant.
Pipe Diameter
Condensation
Joints and Sealing
FIGURE 7B
-
Typical Horizontal
Flue Arrangement
LEFT or RIGHT
HAND EXIT