Heatcraft Refrigeration Products HCS - Manual (Page 8)

8
Accessories
Face
and
Bypass
Dampers
Face And Bypass Dampers
For damper applications, choose either the internal face and bypass
section or the external face and bypass section. If used with a
large coil the damper section must be the external face and bypass
damper type. When used with a small coil, select the internal face
and bypass damper section. The damper sections have balanced
opposed blades with interconnecting linkage. The blades positively
lock to the damper shafts. The shafts rotate freely in frictionless
sleeve bearings.
Mixbox
Mix Box Sections
The Mixbox is an entering air section. Typically, themixbox
accepts air from two sources. Many system designers economize
performance by varying the two air flows to deliver conditioned
air with minimum energy consumption. Mixbox sections are
constructed with heavy gauge mill galvanized steel. Select from
three inlet opening locations: the air can enter through openings
at the top, at the back, or at the bottom of the section. Order the
mixbox with or without dampers. The section with dampers has
parallel blades at each opening and an interconnecting linkage
between the openings. The damper rods rotate in frictionless
sleeve bearings, and the drive rod extends from both sides of the
section for either left or right hand drive. Flat Filter Sections
Flat filter sections are space saving and economical. Choose
either two inch or four inch filters. The two inch filters can be the
throwaway, the 35% pleated, or the high velocity cleanable type.
Four inch filters are 35% pleated, they have more filter surface
than two inch filters. Four inch filters impose less static on air flow
and do not need to changed as often as two inch filters. The filters
slide into metal channels and are removable from either side of the
section.
Flat Filter Section
High Capacity Filter Sections
Designed for high air volume applications. Filters are arranged in
a V or W pattern for the greatest surface possible which provides
extended filter life and reduced resistance to air flow. This means
less fan horsepower. The sections have access doors on each side
to ease filter change.
High Efficiency Filter Sections
High Efficiency Filter Sections
Select 22", 28", or 44" bag filter sections. Choose medium or high
efficiency bag or cartridge filters for this section. See pages 9,
29, 42, and 43. Sections are complete with prefilter and bag filter
tracks. The sections have an extruded aluminum final filter track
with a reinforced nylon pile seal. The postive seal forces the air
flow through the high efficiency final filter.
High capacity
Filter Section
Extruded Aluminum
Filter Track
Final Filter Tracks Have
Reinforced Nylon Pile
For A Postive Seal