Carrier 30RY/RYH, 30RA/RH manual DUAL-CIRCUIT Units, Nrcp-Base Ccn

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DUAL-CIRCUIT UNITS

Description

Connector/channel

Terminal

Board

Remarks

Remarks

Alarm relay output

J3 / CH24

30A - 31A

Master NRCP-

Indicates alarms/alerts for circuit A*

circuit A

 

 

BASE

 

Alarm relay output

J3 / CH24

30B - 31B

Slave NRCP-

Indicates alarms/alerts for circuit B*

circuit B

 

 

BASE

 

Boiler relay output

J3 / CH25

37 - 38

Master NRCP-

Boiler start/stop control output.

 

 

 

BASE

See section 5.13.

Volt-free contact 24 V a.c. 48 V d.c. max, 20 V a.c. or V d.c., 3 A max, 80 mA min, external power supply.

Connector: 4 pin

WAGO 734-104 pitch 3.5. One per board needed.

Contact 1:

J4 / CH8

32 - 33

Master NRCP-

The contacts are used for unit start/stop and

start/stop/heat/cool

 

 

BASE

heat/cool control. They are only taken into

 

 

 

 

account if the unit is under remote operation

Contact 2:

J4 / CH9

63 - 64

Master NRCP-

control (rEM).

start/stop/heat/cool

 

 

BASE

 

 

 

 

 

See the description of these contacts in

 

 

 

 

sections 3.6.2 and 3.6.3.

24 V a.c., 20 mA

Connector: 8 pin WAGO 734-168, pitch 3.5

Contact 3:

J4 / CH10

73 - 74

Master NRCP-

These dry contacts are used for demand

demand limit selection

 

 

BASE

limit selection. See description of these

 

 

 

 

contacts in section 3.6.5.

Contact 4:

J4 / CH10

75 - 76

Slave

The remote demand limit selection contact is

demand limit selection

 

 

NRCP-BASE

active whatever the operating type of the

 

 

 

 

unit.

Contact 5:

J4 / CH8

65 - 66

Slave

These dry contacts are used for setpoint

setpoint selection

 

 

NRCP-BASE

selection.

 

 

 

 

They are only taken into account if the unit is

 

 

 

 

in remote control operating type (rEM).

Control contact 6:

J4 / CH9

67 - 68

Slave

See the description of these contacts in

setpoint selection

 

 

NRCP-BASE

sections 3.6.6.

User safety loop input

J4 / CH11a

34 - 35

Master

This contact is mounted in series with the

 

 

 

NRCP-BASE

water flow control contact. It can be used for

 

 

 

 

any customer safety loop that requires that

 

 

 

 

the unit is stopped, if it is open.

 

 

 

 

If it is unused this contact must be bridged.

Connection to CCN

J12

1 - 2 - 3

Master

An RS-485 bus is used for connection to the

 

 

 

NRCP-BASE

CCN.

 

 

 

 

- Pin 1: signal +

- Pin 2: ground

- Pin 3: signal -

Connector: 3 pin WAGO 231-303, pitch 5.08

*The operation of these relays can vary depending on the user configuration. See section ‘Description of the User 2 configuration sub-menu’.

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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 ControlsBase DUAL-CIRCUIT UnitsNRCP-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 ModeMenu description Description of the Outputs/Tests menu GeneralOutputs Status & Tests Menu 2 Format Units Description Additional heating stage status Manual testsAutomatic tests Outputs Status & Tests Menu 2Test Number Description Confirmation Password Description of the configuration menu GeneralTest 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 Date and Time configuration sub Menu Description of the User 2 Configuration sub-menuDate & Time Configuration SUB-MENU Format Comments Description of the Holidays sub-menus Typical timer programDescription of the Broadcast sub-menu Broadcast Configuration 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/auto selection Heating/cooling/standby operationCCN 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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