2
Unitary Products Group
530.22-N5W
General................................................................................1
Inspection ............................................................................1
Reference ............................................................................1
Approvals ............................................................................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 ...................................................4
Optional Electric Heaters.....................................................5
Optional Economizer/Mot. Damper Rain Hood ...................5
Optional Power Exhaust Rain Hood ....................................7
OPERATION
Cooling System .................................................................14
Preliminary Operation Cooling ..........................................14
Cooling Sequence of Operation ........................................14
Safety Controls ..................................................................14
Heating Sequence of Operation ........................................14
Heat Anticipator Setpoints .................................................15
Checking Supply Air CFM .................................................15
Secure Owner's Approval..................................................16
MAINTENANCE
Normal Maintenance .........................................................16
TABLES
No.
Description
Page
1
Unit Application Data..................................
3
2
Control Wire Sizes .....................................
5
3
Electric Heat Application Data....................
5
4
Physical Data .............................................
8
5
Supply Air Blower Perf. 15 Ton ..................
10
6
Supply Air Blower Perf. 20 Ton ..................
11
7
Static Resistances......................................
12
8
Power Exhaust Performance .....................
12
9
Blower Motor and Drive Data .....................
12
10
Electrical Data (Basic Units).......................
13
11
Electrical Data (Units w/Elec. Heat) ...........
13
12
Heat Anticipator Setpoints..........................
15
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
Adjusting Enthalpy Setpoint .......................
8
7
Dimensions and Clearances ......................
9
8
Belt Adjustment ..........................................
15
9
Pressure Drop versus Supply Air CFM ......
15
TABLE OF CONTENTS
D
A
H
C
-
T
0
8
8
E
PRODUCT NOMENCLATURE
PRODUCT GENERATION
A = 1st Generation
PRODUCT CATEGORY
D = Single Package Air Conditioner
(Air-Cooled)
PRODUCT IDENTIFIER
HC = Cooling only or
Electric/Electric
VOLTAGE CODE
-T = 208/230-3-60
-W = 460-3-60
-X = 575-3-60
NOMINAL COOLING
CAPACITY
180 = 15 Ton
240 = 20 Ton
FACTORY INSTALLED
OPTION CODE
A = Sing. Input Economizer
C = Sing. Input Economizer
w/ Power Exhaust
R = Motorized Outdoor
Air Damper
1
1
0
NOMINAL HEATING
CAPACITY
ELECTRIC
018 = 18 KW
036 = 36 KW
054 = 54 KW
072 = 72 KW
A
FACTORY INSTALLED
HEAT
A = No Heat
E = Electric