036-21335-002-A-1102

STEAM COILS (LA300 & LB360 only): A steam coil is avail- able on the 25 & 30 Ton for installation between the blower and coil modules of both horizontal and vertical units. Since the casing matches the dimensions and the finish of the basic unit, it becomes an integral part of the unit after installation. The coil slides out of the casings for easy installation and is pitched in the casings to facilitate condensate drainage. The coil has copper tubes that have been mechanically expanded into aluminum fins. Both headers are located on the same end of the coil. The coil is leak-tested at 325 psig and dried before the connections are capped for storage and shipping.

BLOWER MOTORS: Different HP motors are available for each unit to meet almost any air delivery requirement. All motors are UL approved, have permanently lubricated ball bearings and are field-mounted within the insulated cabinet of the units to minimize the transmission of sound to the sur-

rounding space. 5 HP motors are inherently protected. 7.5 HP - 15 HP require motor overload protection.

DRIVE PACKAGES: Different size pulleys and belts are available for each unit to provide a blower RPM range to meet almost any air delivery requirement. Variable pitch motor pulleys can be adjusted to provide the proper blower RPM. All drive packages are rated at least 25% above the nominal HP rating of the blower motor. Two-groove pulleys and two belts are provided on every drive package rated at 5 HP and above.

STARTERS AND HEATER ELEMENTS (7.5 - 15 HP): The blower motors that are available for the units do not have inherent protection and require external motor overload pro- tection. See details in Table 7.

TABLE 1: STATIC RESISTANCES FOR UNIT ACCESSORIES

UNIT MODEL

ACCESSORY

 

 

CFM

 

 

 

 

 

 

 

 

 

 

 

8,000

9,000

10,000

11,000

12,000

LA300

 

 

 

 

 

 

Hot Water Coil

0.06

0.07

0.08

0.09

0.10

 

Steam Coil

0.11

0.14

0.17

0.20

0.23

 

 

 

 

 

 

 

 

 

10,000

11,000

12,000

13,000

14,000

LB360

 

 

 

 

 

 

Hot Water Coil

0.08

0.09

0.10

0.12

0.14

 

Steam Coil

0.17

0.20

0.23

0.27

0.31

 

 

 

 

 

 

 

LB480

 

12,800

14,400

16,000

17,600

19,200

 

 

 

 

 

 

Hot Water Coil

0.11

0.13

0.15

0.17

0.20

 

 

 

 

 

 

 

 

LB600

 

16,000

18,000

20,000

22,000

24,000

 

 

 

 

 

 

Hot Water Coil

0.15

0.18

0.21

0.24

0.28

 

 

 

 

 

 

 

 

TABLE 2: UNIT MOUNTING DIMENSIONS1

LA/LB

 

DIMENSIONS, INCHES

 

UNIT

AX

BX

CX

 

 

 

 

300

69-1/4

49-1/16

26-5/8

 

 

 

 

 

 

 

360

69-1/4

49-1/16

26-5/8

 

 

 

 

 

 

 

480

84

50-9/16

34

 

 

 

1.See Figure 4 for dimensions AX, BX and CX.

Unitary Products Group

5

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York 600, LB360, LA300, 480 Static Resistances for Unit Accessories, Unit Mounting DIMENSIONS1, Unit Model Accessory CFM

480, 600, LA300, LB360 specifications

York LB360, LA300, 600, and 480 are part of the innovative line of air conditioning and heating solutions developed by Johnson Controls under the York brand. These models are specifically designed to cater to the diverse needs of commercial and industrial applications, delivering high performance, energy efficiency, and reliability.

The York LB360 is an advanced rooftop unit that combines robust construction with cutting-edge technology. One of its main features is its remarkably high-efficiency variable-speed compressor, which allows for precise temperature control while minimizing energy consumption. This model is ideal for medium to large commercial spaces, as it offers flexible configurations and a wide range of cooling capacities, ensuring optimal performance in various climates.

The LA300, on the other hand, is highly regarded for its incredibly quiet operation and compact design. It features advanced sound-dampening technologies that significantly reduce noise levels, making it a suitable choice for environments where low sound emissions are critical, such as schools, hospitals, and offices. The LA300 also integrates smart controls that allow for remote monitoring and management, enhancing overall operational efficiency.

The York 600 series is engineered with durability and serviceability in mind. Its modular design simplifies maintenance, allowing technicians to quickly access critical components. This series includes features like integrated economizers and variable frequency drives, which boost energy efficiency by optimizing airflow and compressor operation based on real-time conditions. The 600 series units are particularly advantageous in large facilities requiring reliable year-round climate control.

Finally, the York 480 model emphasizes advanced control capabilities. It uses cutting-edge microprocessor technology to enable sophisticated diagnostics and performance tracking, thereby reducing downtime and maintenance costs. With an option for web-based control, users can conveniently adjust settings and monitor the system from any location. This model is perfect for facility managers looking for a high level of control over their heating and cooling systems.

In summary, York's LB360, LA300, 600, and 480 models exemplify the brand's commitment to innovation, efficiency, and flexibility in climate control solutions. These units cater to a wide spectrum of commercial and industrial needs, ensuring comfort while helping to reduce energy expenses.