Specifications

General ................................................................................ 1
Inspection............................................................................. 1
Reference ............................................................................ 1
Approvals ............................................................................. 1
Nomenclature....................................................................... 2
INSTALLATION
Limitations............................................................................ 3
Location ............................................................................... 3
Rigging and Handling .......................................................... 3
Clearances........................................................................... 3
Ductwork .............................................................................. 3
Barometric Relief / Fixed Outdoor Air
Intake Damper Assembly.................................................... 4
Filters ................................................................................... 4
Condensate Drain................................................................ 4
Service Access..................................................................... 4
Thermostat........................................................................... 4
Power and Control Wiring.................................................... 5
Electric Heaters.................................................................... 5
Compressors........................................................................ 5
Optional Economizer / Mot. Damper Rain Hood ................. 5
OPERATION
Cooling System.................................................................. 12
Preliminary Operation Cooling........................................... 12
Cooling Sequence of Operation ........................................ 12
Safety Controls .................................................................. 12
Heating Sequence of Operation ........................................ 12
Heat Anticipator Setpoints ................................................. 13
Checking Supply Air CFM.................................................. 13
Secure Owner’s Approval .................................................. 14
MAINTENANCE
Normal Maintenance.......................................................... 14
TABLES
No. Description Page
1 Unit Application Data .................................. 3
2 Physical Data.............................................. 7
3 Electrical Data............................................. 8
4 Blower Performance (7-1/2 & 8-1/2 Ton).... 11
5 Blower Performance (10 & 12-1/2 Ton) ...... 12
6 Accessory Static Resistances .................... 12
7 Blower Motor and Drive Data ..................... 13
8 Heat Anticipator Setting .............................. 14
9 Blower Motor Pulley Adjustment................. 15
FIGURES
No. Description Page
1 Center of Gravity......................................... 3
2 Barometric Relief / Fixed Outdoor Air
Intake Damper Assembly......................... 4
3 Recommended Drain Piping....................... 4
4 Econo. / Mot. Damper Hood Assembly ...... 6
5 Adjusting Enthalpy Setpoint........................ 7
6 Typical Field Wiring..................................... 9
7 Dimensions and Clearances....................... 10
8 Pressure Drop versus Supply Air CFM....... 14
TABLE OF CONTENTS
D 3 C E A
PRODUCT NOMENCLATURE
PRODUCT GENERATION
3 = 3rd Generation
4 = 4th Generation
PRODUCT CATEGORY
D = Single PackageAir Conditioner
(Air Cooled)
PRODUCT IDENTIFIER
CE = Cooling
VOLTAGE CODE
25 = 208/230-3-60
46 = 460-3-60
58 = 575-3-60
090 = 7-1/2 Tons
102 = 8-1/2 Tons
120 = 10 Tons
150 = 12-1/2 Tons
90 0 2 5
FACTORY
INSTALLED HEAT
A = No Heat Installed
NOMINAL
COOLING CAPACITY
530.18-N9Y
2 Unitary Products Group