SYSTEM PROTECTION -- Crankcase heaters and internal
compressor protection are standard on all compressors. Every
unit has a liquid line filter--drier, low pressure switch, high
pressure switch and high temperature switch to protect all
system components. A suction line freezestat is supplied on all
three--phase units to protect against loss of charge and coil
frosting due to low economizer outdoor air temperature while
the compressor is running. All units will provide cooling at
ambient temperatures down to 45
°
F.
UTILITY CONNECTIONS MADE EASY -- Electric utility
knockouts are provided in the unit underside as well as the side
of the unit. A clearly identified location is provided to mount a
field supplied electrical disconnect switch. Utility connections
can be made quickly and with a minimum amount of field labor.
SIMPLE CONTROL CIRCUIT -- Mate--n--lock plug connectors
are used where line and low voltage wires pass thru internal
bulkheads. This allows for easier troubleshooting and
component replacement. The electrical control box is not
located in the compressor compartment so the access cover
can be removed for troubleshooting without affecting the
normal system operating pressures.
AIR FILTERS -- Units come standard with 1" throwaway filters.
The unit filter racks can accommodate 1" or 2" filters without
any modifications.
036-21564-002-A-0404
2
Unitary Products Group
TABLE OF CONTENTS
FEATURES
- CONT'D.
Heater / CFM Limitations...................................................10
Field Wiring .......................................................................10
Electrical Data - Basic Units (Direct-Drive) ........................11
Elec. Data-Ht. Pump/Elec.Ht. 3 Ton (Direct-Drive) ............11
Elec. Data-Ht. Pump/Elec.Ht. 4 & 5 Ton (Direct-Drive)......12
Electrical Data - Basic Units (Belt-Drive) ...........................13
Elec. Data-Ht. Pump/Elec.Ht. 3 Ton (Belt-Drive) ...............13
Elec. Data-Ht. Pump/Elec.Ht. 4 & 5 Ton (Belt-Drive).........14
Unit Dimensions ................................................................15
Roof Curb Dimensions ......................................................17
Factory Installed Options / Field-Installed Accessories .....18
Typical Applications ...........................................................19
Description ..........................................................................1
Features ..............................................................................1
Ratings ................................................................................3
Physical Data.......................................................................3
Cooling Capacities - 3 Ton...................................................4
Cooling Capacities - 4 Ton...................................................5
Cooling Capacities - 5 Ton...................................................6
Heating Capacities ..............................................................7
Supply Air Blower Perf. - 3 & 4 Ton w/Belt-Drive.................8
Supply Air Blower Perf. - 5 Ton w/Belt-Drive .......................9
Supply Air Blower Perf. - 3, 4 & 5 Ton w/Direct-Drive..........9
Motor and Drive Data ..........................................................9
Static Resistances .............................................................10
DIRECT DRIVE
BLOWER MOTOR
(Belt-Drive Option
also available on some
models)
(Direct Drive Models)
SUNLINE 2000
Heat Pump
