Carrier 30RY/RYH, 30RA/RH manual PRO-DIALOG Control Operation

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5 - PRO-DIALOG CONTROL OPERATION

29

5.1

- Start/stop control

29

5.2

- Heating/cooling operation

30

 

5.2.1 - General

30

 

5.2.2 - Heating/cooling selection

30

5.3

- Evaporator water pump control

31

5.4

- Control interlock contact

31

5.5

- Evaporator heater control

31

5.6

- Control point

31

 

5.6.1 - Active setpoint

31

 

5.6.2 - Reset

33

5.7

- Demand limit

33

5.8

- Night mode

33

5.9

- Capacity control

33

5.10

- Head pressure control

33

5.11

- Defrost function

34

5.12

- Additional electric heater stage control

34

5.13

- Control of a boiler

34

5.14

- Master/slave assembly

34

5.15

- Controlling Pro-Dialog units with a System Manager

34

6 - DIAGNOSTICS - TROUBLESHOOTING

35

6.1

- General

35

6.2

- Displaying alarms

35

6.3

- Resetting alarms

35

6.4

- Alarm codes

35

GENERAL LEGEND

Each of the following drawings is replaced in the whole document by the corresponding explanation:

Start/stop button

Return key

Down arrow

Up arrow

DELTA T. Example: temperature difference between entering and leaving heat exchanger temperatures

means character is flashing

The cover graphics are solely for illustration and forms no part of any offer for sale or any sale contract. The manufacturer reserves the right to change the design at any time without notice.

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Contents 30RA/RH B 30RY/RYH B PRO-DIALOG Control Operation and maintenance instructionsTable of Contents Safety Considerations PRO-DIALOG Control Operation Following abbreviations are used frequently GeneralAvoid electrocution Abbreviations usedPressure sensors Electrical supply to boardsLight emitting diodes on boards SensorsConnections at the users terminal block ControlsDUAL-CIRCUIT Units BaseNRCP-BASE CCN OFF Volt-free contact on/off/cooling/heating with multiplexingNot available on the PRO-DIALOG Junior interface Local interface general featuresMain interface Main Interface Button Name DescriptionStarting unit and selecting an operating type Stopping the unit in local modeUnit start/stop control DescriptionSelecting a menu item Modifying the value of a parameter/access to a sub- menuMenus Selecting a menuExpand display Menu SUB-MENU Active alarm code Historic alarm codeActive alarm code Historic alarm Menu tree structureInformation Menu Format Units Description Description of the Information menuFormat Units Description Information MenuSetpoints Menu Format Units Range Comments Temperatures Menu Format Units CommentsDescription of the Setpoints menu Pressures Menu Format Units CommentsDescription of the Inputs menu Leaving Water Temperature Control Setpoint CEntering Water Temperature Control Reset Thresholds in Cooling or Heating ModeDescription of the Outputs/Tests menu General Menu descriptionOutputs Status & Tests Menu 2 Format Units Description Additional heating stage status Manual testsAutomatic tests Outputs Status & Tests Menu 2Test Number Description Confirmation Description of the configuration menu General PasswordTest Fault Description SUB-MENU Holiday Configuration SUB-MENU Period ConfigurationUser 1 Configuration SUB-MENU Format Units Default Comments Description of the User 1 Configuration sub-menuDescription of the User 2 Configuration sub-menu Description of Date and Time configuration sub MenuDate & Time Configuration SUB-MENU Format Comments Description of the Holidays sub-menus Typical timer programBroadcast Configuration SUB-MENU Description of the Broadcast sub-menuItem # Format Comments Description of the Runtimes 1 menu Description of the Alarms menuDescription of the Alarms History menu Runtime menu descriptionItem # Format Units Description Maintenance menu descriptionDescription of Runtimes 2 menu Start/stop controlHeating/cooling/standby operation Heating/cooling/auto selectionCCN Control point Evaporator water pump controlControl interlock contact Evaporator antifreeze protectionHeating setpoint Cooling setpointCapacity control ResetNight mode Reset example in cooling mode Demand limitControl of a boiler Master/slave assemblyDefrost function Additional electric heater stage controlThen, 2 ALArM Then, no ALArM Displaying alarmsResetting alarms Alarm codesAlarm Code Descriptions

30RY/RYH, 30RA/RH specifications

The Carrier 30RY/RYH and 30RA/RH chiller models are leading solutions in commercial and industrial cooling applications. Renowned for their reliability, efficiency, and advanced technologies, these chillers cater to a wide variety of settings, from office buildings to manufacturing facilities.

The 30RY/RYH series features a distinctive design optimized for performance, utilizing a centrifugal compressor that ensures smooth operation under varying loads. One of the standout features of these chillers is their high-efficiency capabilities, which contribute to lower energy consumption. The models are engineered to deliver substantial energy savings, meeting or exceeding the latest ASHRAE and DOE efficiency standards.

A significant aspect of the 30RY and 30RA models is their use of environmentally friendly refrigerants. The 30RYH, for instance, employs R-134a refrigerant, which is designed to minimize ozone depletion while maximizing efficiency. This commitment to sustainability aligns with modern environmental regulations and practices, making these chillers a wise choice for eco-conscious projects.

In terms of control technology, the chiller models come equipped with advanced microprocessor-based controls, providing users with optimal system management and diagnostics. This integrated control system enhances the overall performance and reliability of the chillers, allowing for real-time monitoring and adjustment to ensure peak operational efficiency.

Another key feature is the quiet operation of the 30RY/RYH and 30RA/RH series. Designed with sound attenuation in mind, these units minimize noise pollution, making them suitable for installations in noise-sensitive environments. Additionally, the modular design allows for easy installation and maintenance, reducing downtime and providing flexibility in system design.

Both series also offer robust thermal performance, with the capability to handle a wide range of operating conditions. The chillers excel in terms of cooling capacity, providing solutions for varying thermal loads while maintaining energy efficiency. This adaptability is invaluable for facilities managing seasonal changes in cooling demands.

In summary, the Carrier 30RY/RYH and 30RA/RH chillers represent an ideal blend of efficiency, advanced technology, and eco-friendliness. Their high-performance capabilities, user-friendly controls, and sustainable design make them a top choice for commercial and industrial applications, ensuring dependable cooling solutions for diverse environments.
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