General ................................................................................ 1
Inspection............................................................................. 1
Reference ............................................................................ 1
Nomenclature....................................................................... 2
INSTALLATION
Limitations ............................................................................ 3
Location ............................................................................... 3
Rigging and Handling .......................................................... 3
Clearances........................................................................... 3
Ductwork .............................................................................. 3
Filters ................................................................................... 3
Condensate Drain ................................................................ 4
Service Access..................................................................... 4
Thermostat........................................................................... 4
Power and Control Wiring.................................................... 4
Blower Speed Selection....................................................... 4
Compressors........................................................................ 4
Optional Economizer Rain Hood ......................................... 5
Disconnect Switch Bracket For Optional Belt-Drive ............ 6
Electric Heaters.................................................................... 8
OPERATION
Cooling System.................................................................. 12
Preliminary Operation Cooling........................................... 12
Cooling Sequence of Operation ........................................ 12
Safety Controls .................................................................. 13
Heating Sequence of Operation ........................................ 13
Heat Anticipator Setpoints ................................................. 13
Checking Supply Airflow .................................................... 13
Secure Owner’s Approval .................................................. 14
MAINTENANCE
Normal Maintenance.......................................................... 14
TABLES
No. Description Page
1
Unit Application Data ..................................
3
2
Physical Data ..............................................
4
3
Blower Perf. - 036 & 048 w/Direct-Drive.....
9
4
Blower Perf. - 060 & 076 w/Belt-Drive........
10
5
Static Resistances ......................................
12
6
Motor and Drive Data - Belt-Drive .............
12
7
Electrical Data -Basic Unit ..........................
12
8
Heat Anticipator Setting ..............................
13
9
Motor Pulley Adjustment .............................
13
FIGURES
No. Description Page
1
Center of Gravity.........................................
3
2
Recommended Drain Piping.......................
4
3
Economizer Rain Hood Assembly ..............
5
4
Typical Field Wiring.....................................
6
5
Dimensions and Clearances.......................
7
6
Enthalpy Setpoint Adjustment.....................
8
7
Press. Drop versus Supply Airflow .............
14
TABLE OF CONTENTS
D
3
C
E
A
PRODUCT NOMENCLATURE
PRODUCT GENERATION
3 = 3rd Generation
PRODUCT CATEGORY
D = Single Package Air Conditioner
(Air Cooled)
PRODUCT IDENTIFIER
CE = Cooling
VOLTAGE CODE
50 = 380/415-3+N-50
036 = 10.5 kW (36 MBH)
048 = 14.0 kW (48 MBH)
060 = 17.6 kW (60 MBH)
076 = 22.3 kW (76 MBH)
7
0
6
5
0
NOMINAL COOLING
CAPACITY
FACTORY INSTALLED
HEAT
A = Cooling Only
530.26-N1YI
2
Unitary Products Group