035-18895-000-A-0902
2 Unitary Products Group
General
................................................................................
1
Inspection
............................................................................
1
Reference
............................................................................
1
Nomenclature
......................................................................
2
INSTALLATION
Limitations
...........................................................................
3
Location
...............................................................................
3
Rigging and Handling
..........................................................
3
Clearances
..........................................................................
3
Ductwork
.............................................................................
3
Fixed Outdoor Air Intake Damper
........................................
4
Condensate Drain
...............................................................
4
Compressors
.......................................................................
4
Filters
...................................................................................
4
Service Access
....................................................................
4
Thermostat
..........................................................................
4
Power and Control Wiring
...................................................
5
Optional Electric Heaters
.....................................................
5
Optional Econ./Motorized Damper Rain Hood ....................6
OPERATION
Cooling System .................................................................12
Preliminary Operation........................................................12
Cooling Sequence of Operation ........................................12
Heating Sequence of Operation ........................................12
Heat Anticipator Setpoint...................................................13
Checking Supply Airflow
....................................................
13
Defrost Sequence of Operation
.........................................
14
Secure Owner's Approval
..................................................
15
MAINTENANCE
Normal Maintenance
.....................................................
15
TABLES
No. Description Page
1 Unit Application Data
..................................
3
2 Electric Heat Application Data
....................
5
3 Physical Data
.............................................
7
4 Supply Air Blower Performance
.................
10
5 Static Resistances
......................................
11
6 Blower Motor and Drive Data
.....................
11
7 Electrical Data (Basic Units)
.......................
11
8 Electrical Data (Units w/Elec. Heat)
...........
11
9 Heat Anticipator Setpoints
..........................
13
10 Blower Motor Pulley Adjustment
................
13
FIGURES
No. Description Page
1 Typical Rigging
...........................................
3
2 Center of Gravity
........................................
3
3 Fixed Outdoor Air Damper
.........................
4
4 Recommended Drain Piping ...................... 4
5 Typical Field Wiring.................................... 5
6 Enthalpy Setpoint Adjustment.................... 7
7 Dimensions and Clearances ...................... 8
8 Belt Adjustment.......................................... 13
9 Pressure Drop versus Supply Airflow......... 13
10 Defrost Initiation Times .............................. 14
11 Ambient Modified Time/Temp. Control ....... 15
TABLE OF CONTENTS
B 1 C H 3E
PRODUCT NOMENCLATURE
PRODUCT GENERATION
2 = 2nd Generation
PRODUCT CATEGORY
B = Single Package Heat Pump
(Air Cooled)
PRODUCT IDENTIFIER
CH = Heat Pump
VOLTAGE CODE
50 = 400/415-3+N-50
NOMINAL
HEATING CAPACITY
180 = 49.5 kW (169 MBH)
0 681 0 5 0
FACTORY INSTALLED
HEAT
A = No Heat
E = Electric Heat
NOMINAL COOLING
CAPACITY
018 = 18 kW
036 = 36 kW
054 = 54 kW
072 = 72 kW
