5
OPTIONS AND ACCESSORIES
ITEM DESCRIPTION
FACTORY
INSTALLED
OPTION
FIELD
INSTALLED
ACCESSORY
Coil Options Base unit with tin plated indoor coil hairpins X
Compressor Start Kit
Compressor Start Kit assists compressor start ---up by providing
additional starting torque on sing phase units only.
X
Corporate Thermostats
Thermostats provide control for the system heating and cooling
functions.
X
Crankcase Heater
Crankcase Heater provides anti ---floodback protection for low ---
load cooling applications.
X*
Economizer
Horizontal Economizer with solid state controls and barometric
relief dampers includes filter racks and provide outdoor air during
cooling and reduce compressor operation.
X
Vertical Economizer with solid state controls and barometric relief
dampers includes filter racks and provide outdoor air during
cooling and reduce compressor operation.
X
Electric Heaters Electric Heat Supplement X
Filter Rack
Filter Rack features easy installation, serviceability , and high ---
filtering performance for vertical applications. Includes 1---in. filter.
X
Flat Roof Curbs
F l a t R o o f C u r b s i n b o t h 1 1 --- i n ( 2 7 9 m m ) a n d 1 4 --- i n . ( 3 5 6 m m )
sizes are available for roof mounted applications.
X
Low Ambient Kit
Low Ambient Kit (Motormaster II Control) allows the use of mech-
anical cooling down to outdoor temperatures as low as 0°F
(--- 18° C) when properly installed.
X
Louver Metal Outdoor Coil Grilles
Louver Metal Outdoor Coil Grilles provides hail and vandalism
protection.
X
Manual Outside Air Damper
Manual Outside Air Damper includes hood and filter rack with
adjustable damper blade for up to 25% outdoor air.
X
S q u a r e --- t o --- R o u n d D u c t Tr a n s i t i o n K i t
Square--- to---Round Duct Transition Kit enable 24--- 48 size units to
be fitted to 14 in. (356 mm) round ductwork.
X
Time Guard II
Automatically prevents the compressor from restarting for at least
4 minutes and 45 seconds after shutdown of the compressor. Not
required when a corporate programmable thermostat is applied
o r w i t h a R T U --- M P c o n t r o l .
X
*Refer to Price Page for application detail.
ELECTRIC HEATERS
ORDERING NO.
NOMINAL
CAPACITY (kW
@ 240 or 480
VOLTS)
USED WITH SIZES
24 30 36 42 48 60
208/230 --- SINGLE PHASE --- 60 HZ
CPHEATER052A00 5.0 X X X
CPHEATER064A00 5.0 X X X X X X
CPHEATER070A00 7.2 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
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 X X X X
CPHEATER058A00 15.0 X X X X X
CPHEATER059A01 20.0 X X X
4 6 0 --- T H R E E P H A S E --- 6 0 H Z
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
NOTE: Electric heaters are rated at 240v. Refer to Mu ltiplication Factors table for other voltages.
X = Approved combination
Minimum Airflow for Reliable Electric Heater Operation (cfm)
SIZE 50EZ--A24 50EZ--A30 50EZ--A36 50EZ--A42 50EZ--A48 50EZ--A60
AIRFLOW (CFM) 800 1025 1250 1400 1710 1800
50EZ--A
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