Carrier 50SZ Series - Options and Accessories; Electric Heaters; Minimum Airflow for Reliable Electric Heater Operation (Cfm)

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/copperand 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