2 Unitary Products Group
035-15410-002-B-0404
E
3 F B 2 59 A
PRODUCT NOMENCLATURE
PRODUCT GENERATION
1 = First Generation
2 = Second Generation
3 = Third Generation
PRODUCT CATEGORY
E = Split-System Heat Pump
Outdoor
Unit
PRODUCT IDENTIFIER
FB = Outdoor Unit
VOLTAGE CODE
25 = 208/230-3-60
46 = 460-3-60
50 = 380/415-3-50
NOMINAL COOLING
CAPACITY
090 = 7-1/2 Ton
120 = 10 Ton
FACTORY INSTALLED HEAT
A = Not Applicable
0 0
TABLE OF CONTENTS
GENERAL
.............................................................................
1
REFERENCE
.............................................................................
1
INSPECTION
.............................................................................
1
NOMENCLATURE
......................................................................
2
INSTALLATION
LIMITATIONS
.............................................................................
3
LOCATION
Roof-Top Locations
.............................................................
3
Ground Level Locations
......................................................
3
RIGGING AND HANDLING
........................................................
3
CLEARANCES
...........................................................................
4
COMPRESSORS
.......................................................................
4
COMPRESSOR CRANKCASE HEATER (10 Ton Only)
.............
4
POWER AND CONTROL WIRING
Power Wiring
......................................................................
4
Control Wiring
.....................................................................
4
Wire Sizing
..........................................................................
5
REFRIGERANT PIPING
General Guidelines
.............................................................
5
Line Sizing
..........................................................................
7
Service Valves
....................................................................
8
EXTENDING THE SERVICE PORTS
.........................................
8
INSTALLATION
...........................................................................
8
EVACUATING AND CHARGING ................................................ 9
BALANCE POINT SETTING....................................................... 10
OPERATION
GENERAL ............................................................................. 13
SYSTEM SEQUENCE OF OPERATION
Cooling Operation............................................................... 13
Heating Operation
...............................................................
13
Defrost Cycle
......................................................................
14
Operation Below 0
°
F
...........................................................
14
Emergency Heat Operation
................................................
14
START-UP
CRANKCASE HEATER (10 Ton Unit Only)
................................
15
PRE-START CHECK
..................................................................
15
INITIAL START-UP
.....................................................................
15
SAFETY FEATURES
..................................................................
15
SECURE OWNER'S APPROVAL
...............................................
15
MAINTENANCE
CLEANING
.............................................................................
15
LUBRICATION
............................................................................
15
REPLACEMENT PARTS
............................................................
15
NOTICE TO OWNER
..................................................................
15
LIST OF FIGURES
Figure
No.
Description Page
1 Center of Gravity
..................................................
3
2 Typical Rigging
.....................................................
4
3 Typical Field Wiring
..............................................
5
4 Unit Dimensions & Clearances
............................
6
5 Field Piping Diagrams (Refrigerant Flow)
............
7
6 Extending The Service Ports
................................
10
7 Refrigerant Flow Diagram .................................... 11
8 Charging Curve EFB090 ...................................... 12
9 Charging Curve EFB120 ...................................... 12
LIST OF TABLES
Table
No.
Description Page
1 Unit Application Data............................................ 3
2 Physical Data ....................................................... 4
3 Electrical Data ...................................................... 5
4 Liquid Lines
..........................................................
7
5 Vapor Lines
..........................................................
8
6 Refrigerant Line Charge
.......................................
8
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