1

Ð Gear Mesh

8

Ð Oil Supply Temperature Thermistor

2

Ð Bearings

9

Ð Oil Pump Motor

3

Ð Gear Mesh Spray

10

Ð Oil Pump and Pressure Regulator

4

Ð Oil Level Glass

11

Ð Oil Filter

5

Ð Ori®ce

12

Ð Oil Cooler/Filter

6

Ð Oil Supply Pressure

13

Ð Oil Cooler

 

Transducer

14

Ð Plug Valve

7Ð Pressure Control Valve

NOTE: The oil reservoir is at the base of the gear box.

Fig. 5 Ð External Gear Oil Lubrication Cycle (Plan View)

CONTROLS

De®nitions

ANALOG SIGNAL Ð An analog signal varies in propor- tion to the monitored source. It quanti®es values between operating limits. (Example: A temperature sensor is an ana- log device because its resistance changes in proportion to the temperature, generating many values.)

DIGITAL SIGNAL Ð A digital (discrete) signal is a 2-position representation of the value of a monitored source. (Example: A switch is a digital device because it only in- dicates whether a value is above or below a set point or bound- ary by generating an on/off, high/low, or open/closed signal.)

VOLATILE MEMORY Ð Volatile memory is memory in- capable of being sustained if power is lost and subsequently restored.

The memories of the PSIO and LID modules are vola- tile. If the battery in a module is removed or damaged, all programming will be lost.

General Ð The 17EX externally geared open-drive cen- trifugal liquid chiller contains a microprocessor-based con- trol center that monitors and controls all operations of the chiller. The microprocessor control system matches the cool- ing capacity of the chiller to the cooling load while provid- ing state-of-the-art chiller protection. The system controls cooling load within the set point plus the deadband by sens- ing the leaving chilled water or brine temperature and regu- lating the inlet guide vane via a mechanically linked actua- tor motor. The guide vane is a variable ¯ow prewhirl assembly that controls the refrigeration effect in the cooler by regu- lating the amount of refrigerant vapor ¯ow into the com- pressor. An increase in guide vane opening increases capac- ity. A decrease in guide vane opening decreases capacity. Chiller protection is provided by the processor which monitors the digital and analog inputs and executes capacity overrides or safety shutdowns, if required.

11

Page 11
Image 11
Carrier 17EX specifications Controls, Denitions

17EX specifications

The Carrier 17EX is recognized as an innovative air conditioning solution that combines efficiency with advanced technology. This model is designed to meet the increasing demands of residential and commercial cooling needs while maintaining environmental consciousness.

One of the standout features of the Carrier 17EX is its impressive Seasonal Energy Efficiency Ratio (SEER) rating. With a SEER rating that often exceeds 17, this unit ensures optimized energy consumption, significantly lowering operational costs for users. The incorporation of advanced compressor technology allows the system to adjust its cooling output based on the specific needs of the environment, thus providing both comfort and energy savings.

The Carrier 17EX utilizes a variable-speed inverter-driven compressor that enhances its performance and adaptability. This technology allows the air conditioning unit to operate at different speeds, intelligently adjusting to changing load conditions. As a result, the system runs more efficiently and quietly, providing a more consistent comfort level without the abrupt temperature swings associated with traditional units.

In addition to efficiency, the Carrier 17EX also prioritizes reliability and durability. The unit comes with a robust cabinet that protects the components from weather elements, ensuring longevity and consistent performance. The innovative design integrates a corrosion-resistant finish and robust insulation, which further enhances the unit's resilience in various environmental conditions.

For users concerned about indoor air quality, the Carrier 17EX includes advanced filtration systems designed to capture allergens and airborne particles. This feature is particularly beneficial for individuals with respiratory issues, ensuring that the air circulated within the space is clean and healthy.

Moreover, the Carrier 17EX is equipped with smart technology capabilities, allowing users to control their systems remotely through smartphones or other smart devices. This connectivity not only provides convenience but also empowers homeowners to optimize their energy use by adjusting settings on the fly, ensuring efficient operation even when they are away from home.

Overall, the Carrier 17EX stands out in the marketplace for its exceptional energy efficiency, advanced technology, and commitment to providing reliable and effective cooling solutions. Its combination of modern features makes it a preferred choice for those looking to enhance comfort while being mindful of energy consumption and environmental impact.