5
Factory-installed options
Louvered grille
provides hail and vandalism protection. A
wire grille is standard on all models. See model number
nomenclature for louvered 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
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.
Flat roof curbs
in both 8 in. and 14 in. sizes are available for
roof mounted applications.
Square-to-round duct transition kit
enables 024-048 size
units to be fitted to 14 in. round ductwork.
Thermostats
provide control for the system heating and
cooling functions. Thermostat models are available in both
programmable and non-programmable versions.
Controls upgrade kit
supplies high and low pressure safety
protection and protects the unit from operating in unsuitable
conditions.
Crankcase heater
provides anti-floodback protection for
low-load cooling applications.
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.
Filter rack
features easy installation, serviceability, and
high-filtering performance for vertical and horizontal
applications.
Compressor Hard start kit
gives a boost to the compressor
motor at each start-up.
Economizer with Solid-State Controls and Barometric
Relief Dampers
Manual Air Damper (25% open)
Electric Heaters
Filter Rack
Flat Roof Curbs (8-in. and 14-in.)
Square-to-Round Duct Transition Kit
Thermostats
Controls Upgrade Kit
Crankcase Heater
Rigging Kit
Low Ambient Kit (Motormaster® II Control)
Solid-State Time Guard® II Device
Compressor Hard Start Kit
Options and accessories
ELECTRIC HEATERS
LEGEND
ODS — Order Distribution System
NOTE: Electric heaters are rated at 240 v and 480 v. Refer to Multiplication Factors table for other voltages.
*The 030 size models must be run on medium or high speed when used in conjunction with 15 Kw electric heat accessory.
ODS CATALOG
ORDERING NO.
NOMINAL CAPACITY
(kW)
USED WITH SIZES
024
030
036
042
048
060
ELECTRIC HEATERS (208/230 — SINGLE PHASE — 60 Hz)
CPHEATER052A00
5.0
X
X
X
X
CPHEATER064A00
5.0
X
X
CPHEATER070A00
7.5
X
X
X
X
X
X
CPHEATER050A00
10.0
X
X
X
X
X
X
CPHEATER066A00
15.0
X
X
X
X
X
CPHEATER054A00
20.0
X
X
X
ELECTRIC HEATERS (208/230 — THREE PHASE — 60 Hz)
CPHEATER055A00
5.0
X
X
X
X
X
CPHEATER056A00
10.0
X
X
X
X
CPHEATER068A00
10.0
X
CPHEATER058A00
15.0
X
X
X
X
X
CPHEATER067A00
20.0
X
X
X
ELECTRIC HEATERS (460 — THREE PHASE — 60 Hz)
CPHEATER060A00
5.0
X
X
X
X
CPHEATER061A00
10.0
X
X
X
X
CPHEATER062A00
15.0
X
X
X
X
CPHEATER063A00
20.0
X
X
X
Minimum Airflow for Reliable Electric Heater Operation
UNIT-50JX
024
030
036
042
048
060
AIRFLOW
800
1000*
1200
1400
1600
2000
