Carrier 30RB 021 User Manual

GB - 1
30RB/30RQ
Air-cooled liquid chillers and reversible air-to-water heat pumps with
integrated hydronic module
ENGLISH
For the use of the control system, refer to the Pro-Dialog + control manual.
Contents
Page
Physical data ........................................................................................................................................................................ 2/3
Electrical data ..................................................................................................................................................................... 2/3
Dimensions and location of hydraulic connections ................................................................................................. 4
User interface and main switch ...................................................................................................................................... 5
Clearance for horizontal outlet unit ............................................................................................................................. 5
Clearance for vertical outlet unit .................................................................................................................................... 5
General information and hydronic module .............................................................................................................. 6/7
Water connections ............................................................................................................................................................ 7/9
Electrical connections ....................................................................................................................................................... 10
Refrigerant charge ............................................................................................................................................................. 10/11
Electronic control ............................................................................................................................................................... 11
Start-up ................................................................................................................................................................................. 12
Compressor replacement................................................................................................................................................. 12
Pump replacement ............................................................................................................................................................ 12
Unit protection devices .................................................................................................................................................... 12/13
Operating limits and operating range .......................................................................................................................... 13
General maintenance ........................................................................................................................................................ 14
Maintenance ....................................................................................................................................................................... 14
Final recommendations .................................................................................................................................................... 14
Troubleshooting ................................................................................................................................................................. 15
Start-up check list
_________________________Start up date
Equipment sold by: _________________________________________________ Contract No: _________________________________
Installed by: _______________________________________________________ Contract No: _________________________________
Site address ____________________________________________________________________________________________________
Equipment type and serial No: 30RB ___________________________________________________________________
30RQ ___________________________________________________________________
ELECTRICAL DATA:
Supply voltage Ph 1: _______________V Ph 2: _______________V Ph 3: _______________V
Nominal voltage: _________________________________________ V % network voltage ____________________________
Current draw Ph 1: _______________A Ph 2: _______________A Ph 3: _________________A
Control circuit voltage: _____________________________________ V Control circuit fuse__________________________A
Main circuit breaker rating ________________________________________________________________________________________
PHYSICAL DATA:
Coil: Plate heat exchanger:
Entering air temp.: ____________________________°C Entering water temp.: _____________________ °C
Leaving air temp.: ____________________________°C Leaving water temp.: ______________________ °C
Pressure drop (water): _____________________ kPa
SAFETY DEVICE SETTING:
High pressure switch: cut-out: _________________kPa cut-in: ________________________ kPa
Oil level _______________________________________________________________________________________________________
OPTIONS:
Commissioning engineer (name) __________________________________________________________________________________
Customer agreement
Name:______________________________________ Date: ___________________________________
Note: Complete this start-up list at the time of installation

Carrier 30RB 021 Specifications

General

Model Number	30RB 021
Category	Heat Pump
Refrigerant Type	R-410A
Compressor Type	Scroll
Cooling Capacity	21 kW

Summary

General Information and Hydronic Module

Unit Installation

Detailed instructions for installing the unit, including safety precautions and system checks.

Electrical Connections and Refrigerant Charge

Electrical Connections

Guidance on power supply cable sizing, connections, and voltage imbalance.

Liquid Refrigerant Charge

Procedures for checking and adjusting the refrigerant charge.

Recharging Liquid Refrigerant

Refrigerant Charge and Electronic Control

Undercharge

Electronic Control

PRO-Dialog + Electronic Control

Detailed description of the advanced numeric control system.

A Powerful Control System

Start-up, Compressor and Pump Replacement, Unit Protection Devices

Start-up

Pre-start-up checks and precautions required for safe and correct unit operation.

Compressor Replacement

Step-by-step guide for replacing a hermetic compressor.

Pump Replacement

Description of Unit Protection Devices

General Maintenance, Maintenance and Final Recommendations

General Maintenance

Essential maintenance tasks for electrical, water, and refrigerant circuits.

Plate Heat Exchanger Cleaning

Maintenance

Servicing recommendations, including safety precautions and use of spare parts.

Troubleshooting

Unit does not start

Possible causes and remedies for the unit failing to start.

Unit runs continuously or starts and stops frequently

Unit continuously cuts out at low pressure

Causes and solutions for the unit tripping due to low pressure.

Unit continuously cuts out at high pressure

Causes and solutions for the unit tripping due to high pressure.

The unit does not defrost