12
RB SERIES ENGINEERING GUIDE
Inside the RB Series
Refrigerant
All units feature zero ozone depletion and low global warming
potential refrigerant R-410A.
Cabinet
All units are constructed of corrosion resistant galvanized sheet
metal. One large lift-out access panel provides access to the
compressor and air handler section to allow servicing of blower
motor, blower, and drain pan. Refrigerant circuit is designed to
allow primary serviceability from the front. Six (6) horizontal and
six (6) vertical cabinets are provided for application flexibility. The
blower motor and blower can be completely serviced or replaced
without removal of the unit. Service of the blower and blower motor
is made easier via the removable orifice ring on the housing.
Flexible configurations include four (4) blower deck options for
horizontals and a true left and right return on both horizontal
and vertical.
Filter Rack
All units come standard with an open filter rail, for use in open
return applications, or an optional deluxe filter rack/duct collar for
use with ducted returns. Both filter options are field switchable
between 1 in. [2.54 cm] and 2 in. [5.1 cm] thick filters for filter
flexibility. A MERV 4, 1 in. [2.54 cm] is standard with an optional
2 in. [5.1 cm] MERV 13 for LEED certification points and high
efficiency filtration.
Electrical Box
Unit controls feature quick
connect wiring harnesses
for easy servicing. Separate
knockouts for low voltage and
two sides of the electrical corner
post for easy access to the
control box. 50VA or large 75VA
transformer assures adequate
controls power for accessories.
Horizontal Hanger Kits
Each horizontal unit includes a hanger kit to meet seismic
specification requirements while still allowing filter access.
Drain Pan
All condensate connections are PVC glue for economical corrosion
free connections. Bacteria resistant composite drain pan is sloped to
promote complete drainage and will never rust or corrode. Complete
drainage helps to inhibit bacterial or microbial growth. Vertical units
feature an internally trapped condensate line using clear PVC hose
for easy inspection and reduced installation cost. Optional factory
installed stainless steel drain pans are also available.
Compressors
High efficiency R-410A reciprocating compressors are used
on every model. Reciprocating compressors provide both high
efficiency and great reliability.
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