5
OPTIONS AND ACCESSORIES
Factory--installed options
Louver grille
provides hail and vandalism protection. A wire grille
is standard on all models. See model number nomenclature for
louver grille options.
Coil options
include copper/copper and vinyl--coated construction
for refrigerant coils. Units are shipped standard with copper
tube/aluminum fin construction. See model number nomenclature
for coil options.
Field--installed accessories
Economizer with Solid--State Controls and Barometric
Relief Dampers
Manual Air Damper (25% open)
Electric Heaters
Filter Rack
Flat Roof Curbs (8--in. [203 mm]and 14--in. ]356 mm])
Square--to--Round Duct Transition Kit
Thermostats
Crankcase Heater
Compressor Start Kit
(for use on single--phase units only)
Rigging Kit
Low Ambient Kit (Motormaster
®
II Control)
Economizer with solid--state controls and barometric relief
dampers
includes filter racks and provide outdoor air during
cooling and reduce compressor operation.
Manual outside air damper
includes hood and filter rack with
adjustable damper blade for up to 25% outdoor air.
Electric heaters
provide additional heat in the unit when required.
Each package has a heater module that slides into the controls
compartment. Heater sizes range from 5.0 to 20.0 kW. The electric
heater design allows the use of a single--point power supply for the
entire unit, resulting in lower installed costs.
Filter rack
features easy installation, serviceability, and
high--filtering performance for vertical applications.
Flat roof curbs
in both 8 in. (203 mm) and 14 in. (356 mm) sizes
are available for roof mounted applications.
S
quare--to--round duct transition kit
enables 024--048 size units
to be fitted to 14 in. (356 mm) round ductwork.
Corporate Thermostats
provide control for the system heating
and cooling functions. Thermostat models are available in both
programmable and non--programmable versions.
Crankcase heater
provides anti--floodback protection for
low--load cooling applications.
Compressor start kit
assists compressor start--up by providing
additional starting torque on single phase units and prolongs
compressor motor life.
Rigging kit
includes lifting brackets which are inserted into the
unit base rigging holds to lift unit for rooftop applications.
Low--ambient kit (Motormaster II control)
allows the use of
mechanical cooling down to outdoor temperatures as low as 0
_
F
(--18
_
C) when properly installed.
50V
T
