5
OPTIONS AND ACCESSORIES
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
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
Economizer with solid--state controls and barometric relief
dampers
includes filter racks and provides outdoor air during cool-
ing and reduces compressor operation.
Manual outside air damper
includes hood and filter rack with ad-
justable 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 protec-
tion 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 me-
chanical cooling down to outdoor temperatures as low as 0
_
F
(--17.7
_
C).
Filter rack
features easy installation, serviceability, and high--fil-
tering performance for vertical and horizontal applications.
Compressor hard start kit
gives a boost to the compressor motor
at each start--up.
ELECTRIC HEATERS
ODS CATALOG
ORDERING NO.
NOMINAL
CAPACITY (kW)
FUSES
USED WITH SIZES
024
030
036
042
048
060
ELECTRIC HEATERS (208/230 — SINGLE PHASE — 60 Hz)
CPHEATER052A00
5.0
0
X
X
X
X
X
CPHEATER064A00
5.0
4
X
CPHEATER070A00
7.2
4
X
X
X
X
CPHEATER050A00
10.0
4
X
X
X
X
X
X
CPHEATER066A00
15.0
6
X
X
X
X
X
CPHEATER054A00
20.0
6
X
X
X
ELECTRIC HEATERS (208/230 — THREE PHASE — 60 Hz)
CPHEATER055A00
5.0
0
X
X
X
X
X
CPHEATER056A00
10.0
0
X
X
X
X
CPHEATER068A00
10.0
6
X
CPHEATER057A00
15.0
0
X
CPHEATER058A00
15.0
6
X
X
X
X
CPHEATER059A00
20.0
6
X
X
X
ELECTRIC HEATERS (460 — THREE PHASE — 60 Hz)
CPHEATER060A00
5.0
0
X
X
X
X
CPHEATER061A00
10.0
0
X
X
X
X
CPHEATER062A00
15.0
0
X
X
X
X
CPHEATER063A00
20.0
0
X
X
X
NOTE:
Electric heaters are rated at 240v and 480v. Refer to Multiplication Factors table for other voltages.
LEGEND
ODS
⎯
Order Distribution System
Minimum Airflow for Reliable Electric Heater Operation (cfm)
UNIT--50SZ
024
030
036
042
048
060
AIRFLOW
800
1000
1200
1400
1600
2000
50SZ
