2
Unitary Products Group
550.39-N4YI
TABLE OF CONTENTS
General................................................................................1
Reference ............................................................................1
Inspection ............................................................................1
Nomenclature ......................................................................2
INSTALLATION
Limitations ...........................................................................3
Location ...............................................................................3
Clearances ..........................................................................4
Rigging and Handling ..........................................................4
Vertical/horizontal Installation ..............................................4
Duct Connections ................................................................4
Refrigerant Mains ................................................................5
Drain Connection.................................................................6
Supply Air Blower Adjustment .............................................6
Power and Control Wiring..................................................11
MAINTENANCE
Filters.................................................................................12
Evaporator Coil..................................................................12
Lubrication .........................................................................12
Drain Pan ..........................................................................12
Belts...................................................................................12
TABLES
No.
Description
Page
1
Unit Application Data............................................ 3
2
Physical Data ....................................................... 5
3
Supply Air Blower Motor Pulley Adjustment......... 7
4
Blower Performance............................................. 8
5
Accessory Static Resistance (IWG/pA) ................ 9
6
Electrical Data ...................................................... 9
7
Blower Motor and Drive Data ...............................11
FIGURES
No.
Description
Page
1
Unit Suspension Mounting (Horizontal)................ 3
2
Vertical and Horizontal Appplication..................... 4
3
Supply Air Duct Connection ................................. 4
4
Electric Heater Accessory .................................... 4
5
Recommended Drain Piping ................................ 6
6
Typical Motor Mounting Assembly ....................... 7
7
Pressure Drop Across Dry Coil vs Supply Air ...... 7
8
Hole Locations (Pressure Drop Readings)........... 7
9
Unit Dimensions and Clearances.........................10
10
Typical Field Wiring (Cooling only).......................11
K
4
E
U
5
0
2
A
PRODUCT NOMENCLATURE
PRODUCT GENERATION
4,5 = Design Level
PRODUCT CATEGORY
= Split-System Evaporator Blower with
Motor and Drive
PRODUCT IDENTIFIER
EU = Evaporator Blower Unit
VOLTAGE CODE
50 = 380/415-3-50
NOMINAL COOLING
CAPACITY
090 = 90 Mbh (26.36kW)
120 = 120 Mbh (35.13kW)
FACTORY INSTALLED HEAT
A = Not Applicable
1
0
