Thermal insulation contains an EPA-registered immobilized anti-microbial agent to inhibit the growth of bacteria and fungi.
The pitched, non-corroding drain pan can be adjusted for a right- or left-hand connection to suit many applications and provide positive drainage and to prevent standing condensate.
The 524A accessory economizer can provide ventilation air to improve indoor air quality by using demand control ventilation. When used in conjunction with a 2 to 10 VDC adapter on the actuator and a CO2 sensor, the economizer admits fresh outdoor air to replace stale, recirculated indoor air as needed.
Economy — The 524A Series packaged air handlers have low initial costs, and they continue to save money by providing reduced installation expense and energy-efficient performance.
Quick installation is ensured by the multipoise design. Units can be installed in either the horizontal or vertical configuration with- out modifications. Fan motors and contactors are prewired and thermostatic expansion valves (TXVs) are factory-installed on all 524A direct-expansion models.
High efficiency, precision-balanced fans minimize air turbu- lence, surging, and unbalanced operation, cutting operation expenses.
The economizer accessory precisely controls the blend of out- door air and room air to achieve comfort levels. When the outside air enthalpy is suitable, outside air dampers can fully
open to provide “free” cooling without energizing mechanical cooling.
Rugged Dependability — The 524A series units are made to last. The die-formed galvanized steel panels ensure structural integrity under all operating conditions. Galvanized steel fan housings are securely mounted to a die-formed galvanized steel fan deck.
Rugged pillow-block bearings (524A150-300) are securely fas- tened to the solid steel fan shaft with split collets and clamp locking devices. Smaller unit sizes have spider-type bearings.
Coil Flexibility — Model 524A direct-expansion coils have gal- vanized steel casings; inlet and outlet connections are on the same end. The coils are designed for use with Refrigerant 22 and have 3/8-in. diameter copper tubes mechanically bonded to aluminum sine-wave fins. The coils include matched, factory- installed thermostatic expansion valves (TXVs) with matching distributor nozzles.
Easier Installation and Service — The multipoise design and component layout help you to get the unit installed and running quickly. Units can be converted from horizontal to vertical oper- ation by simply repositioning the unit. Drain pan connections are duplicated on both sides of the unit. The filters, motor, drive, TXVs, and coil connections are all easily accessed by removing a single side panel.
TABLE OF CONTENTS
Page
Features/Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1,2
ARI Capacity Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Options and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Typical Wiring Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9,10
569D072-120, 576C120, 569F120
Model Number Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13,14
Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-25
Electrical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Application Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Typical Piping and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Guide Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29-32
566D/E150-240
Model Number Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34,35
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36-38
Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39-52
Electrical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Application Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54-56
Typical Piping and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57,58
Guide Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59,60
524A072-300
Model Number Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63-65
Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66-71
Electrical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72-78
Application Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79-81
Guide Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82,83
