PIC System Components Ð The Product Integrated Control (PIC) is the control system on the chiller. See Table 1. The PIC controls the operation of the chiller by moni- toring all operating conditions. The PIC can diagnose a prob- lem and let the operator know what the problem is and what to check. It promptly positions the guide vanes to maintain leaving chilled water temperature. It can interface with aux- iliary equipment such as pumps and cooling tower fans to turn them on only when required. It continually checks all safeties to prevent any unsafe operating condition. It also regulates the oil heater while the compressor is off and the hot gas bypass valve, if installed. See Fig. 6-10 for the lo- cations of sensors, transducers, and other devices controlled and/or monitored by the PIC system.

The PIC can be interfaced with the Carrier Comfort Network (CCN) if desired. It can communicate with other PIC-equipped chillers and other CCN devices.

The PIC consists of 4 modules housed inside one of 3 lo- cations: the control center, the power panel, or the starter cabinet. The component names and the control voltage of each location are listed below (also see Table 1):

·control center

Ð all extra low-voltage wiring (24 v or less)

REAR

·power panel

Ð115 v control voltage

Ðup to 600 v for oil pump power

·starter cabinet

Ðchiller power wiring (per job requirement)

Table 1 Ð Major PIC Components and

Panel Locations*

PIC COMPONENT

PANEL

LOCATION

 

Processor Sensor Input/Output Module

Control Center

(PSIO)

 

Starter Management Module (SMM)

Starter Cabinet

Local Interface Device (LID)

Control Center

6-Pack Relay Board

Control Center

8-Input Modules (Optional)

Control Center

4-In/2-Out Module

Power Panel

Oil Differential Pressure/Power Supply

Control Center

Module

 

Oil Heater Contactor (1C)

Power Panel

Compressor Oil Pump Contactor (2C)

Power Panel

Gear Oil Pump Contactor (5C)

Power Panel

Hot Gas Bypass Relay (3C) (Optional)

Power Panel

Control Transformers (T1-T4)

Power Panel

Control and Oil Heater Voltage Selector (S1)

Power Panel

Temperature Sensors

See Fig. 7

Pressure Transducers

See Fig. 7

*See Fig. 6-10.

 

 

 

 

LEGEND

 

1

Ð Gear Oil Pressure Sensor

6

Ð Compressor Oil Cooler

11 Ð Motor Water Cooling Leak Detector

2

Ð Thrust Bearing Temperature and

 

Solenoid Conduit

Cable (TEWAC Motor Only)

3

Impeller Displacement Cable

7

Ð Oil Heater Conduit

12 Ð Discharge Oil Pressure Sensor

Ð Discharge Temperature Sensor

8

Ð Motor Space Heater Conduit

TEWAC Ð Totally Enclosed Water-to-Air Cooled

4

Ð Guide Vane Conduit and Cable

9

Ð Gear Oil Temperature Sensor

5

Ð High Pressure Cutout Switch

10

Ð Motor High Temperature Switch Cable

 

Fig. 6 Ð 17EX Controls and Sensor Locations

12

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Carrier 17EX specifications Major PIC Components Panel Locations, PIC Component Panel Location, Psio

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.