Table of Contents
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For the operation of the control please refer to
the Pro-Dialog
30RA/RH - RY/RYH "B" series
Control manual for the
30RA 040-240 "B"
Air-Cooled Liquid Chillers with
Integrated Hydronic Module
Nominal cooling capacity 39-245 kW
50 Hz
AQUASNAP
Installation, operation and maintenance instructions
Carrier is participating in the
Eurovent Certification Programme.
Products are as listed in the
Eurovent Directory of Certified
Products.
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Table of Contents
Related Manuals for Carrier AQUASNAP 30RA B Series
Summary of Contents for Carrier AQUASNAP 30RA B Series
- Page 1 Air-Cooled Liquid Chillers with Integrated Hydronic Module Nominal cooling capacity 39-245 kW 50 Hz AQUASNAP Carrier is participating in the Eurovent Certification Programme. Products are as listed in the Eurovent Directory of Certified Products. For the operation of the control please refer to...
- Page 2 The drawings in this document are for illustrative purposes only and is not part of any offer for sale or contract.
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Page 3: Table Of Contents
CONTENTS 1 - INTRODUCTION ..................................4 1.1 - Installation safety considerations ............................... 4 1.2 - Equipment and components under pressure ..........................4 1.3 - Maintenance safety considerations ............................. 5 1.4 - Repair safety considerations ............................... 5 2 - PRELIMINARY CHECKS ................................7 2.1 - Check equipment received ................................. -
Page 4: Introduction
These products incorporate equipment or components under pressure, manufactured by Carrier or other manufacturers. We The units can also be lifted with slings, using only the desig- recommend that you consult your appropriate national trade nated lifting points marked at the four corners at the unit base. -
Page 5: Maintenance Safety Considerations
(safety globe valves). Do not unweld or flamecut the refrigerant lines or any refri- Contact Carrier Service for a detailed explanation of the gerant circuit component until all refrigerant (liquid and high-pressure switch test method. vapour) has been removed from chiller. Traces of vapour should be displaced with dry air nitrogen. - Page 6 Avoid spilling liquid refrigerant on skin or splashing it into Use mechanical lifting equipment (crane, hoist, etc.) to lift or the eyes. Use safety goggles. Wash any spills from the skin move heavy components such as compressors or plate heat with soap and water.
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Page 7: Preliminary Checks
2 - PRELIMINARY CHECKS 2.2 - Moving and siting the unit 2.1 - Check equipment received 2.2.1 - Moving • Inspect the unit for damage or missing parts. If damage is See chapter "Installation safety considerations" detected, or if shipment is incomplete, immediately file a claim with the shipping company. - Page 8 Checks before system start-up Before the start-up of the refrigeration system, the complete installation, including the refrigeration system must be verified against the installation drawings, dimensional drawings, system piping and instrumentation diagrams and the wiring diagrams. During the installation test national regulations must be followed.
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Page 9: Dimensions/Clearances
3 - DIMENSIONS/CLEARANCES 30RA 040-080 1081 2071 1000 1000 30RA 090-160 2278 2071 1000 1000... - Page 10 30RA 200-240 2279 3351 1000 1000 Legend: NOTE: All dimensions are given in mm Non-certified drawings. Refer to the certified dimensional drawings supplied with the unit or available on request, when designing an installation. Control box For the location of fixing points, weight distribution and coordinates of Water inlet the centre of gravity refer to the certified dimensional drawings.
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Page 11: Physical Data
4 - PHYSICAL DATA 30RA Nominal cooling capacity* 39.4 49.0 57.0 67.0 79.0 89.0 97.0 115.0 135.0 157.0 202.0 245.0 Operating weight with hydronic module Single pump 1093 1106 1205 1212 1248 2133 2305 Dual pump 1170 1183 1305 1312 1348 2221 2393... - Page 12 For unit sizes 200 and 240 the installation requires drilling a hole into the control box, changing of the front door, and adapting the bus bar to be able to install the new fused disconnect switch which is larger than the one used for the standard units.To order this special version from the factory, contact your local Carrier office.
- Page 13 Overcurrent protection of the power supply conductors is not provided with the unit. • The Carrier 30RA units are designed and built to ensure conformance with The factory-installed disconnect switch(es)/circuit breaker(s) is (are) of a type these codes. The recommendations of European standard EN 60204-1 (machine safety - electrical machine components - part 1: general regulations suitable for power interruption in accordance with EN 60947.
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Page 14: Application Data
-10*** 46*** Do not exceed the maximum operating temperature. For a system requiring operation below 7,8°C, contact Carrier SA. For a system requiring operation below 5°C, anti-freeze must be added to the unit. *** Maximum outside temperature: For transport and storage of the 30RA units the minimum and maximum allowable temperatures are –20°C and +55°C. -
Page 15: Unit Operating Range At Full And Part Load
6.6 - Unit operating range at full and part load ˚C 44.5 ˚C Evaporator water leaving temperature Evaporator ∆T = 5 K The evaporator and the hydronic circuit pump are frost protected down to - 10°C outside air temperature. Operating range with required anti-freeze solution and special Pro-Dialog control configuration 6.7 - Pressure drop in the plate heat exchangers 10000... -
Page 16: Electrical Connection
7 - ELECTRICAL CONNECTION 7.1 - Control box 30RA 040-080 30RA 090-160 Legend Main disconnect switch PE Earth connection Power supply cable section (see table "Recommended wire sections"). Disconnect switch position referred to the unit side Control box position referred to the unit base X (mm) Y (mm) 30RA 040 - 080... -
Page 17: Power Supply
Carrier warranty. If the phase imbalance AB = 406 V ; BC = 399 ; AC = 394 V exceeds 2% for voltage, or 10% for current, contact your local... -
Page 18: Recommended Wire Sections
The following is only to be used as a guideline, and does Control manual, and the certified wiring diagram supplied with not make Carrier in any way liable. After wire sizing has been the unit: completed, using the certified dimensional drawing, the instal-... -
Page 19: Water Connections
In case additives or other fluids than those recommended by tank. Carrier s.a are used, ensure that the fluids are not considered as Units with a hydronic module include the safety valve and a gas, and that they belong to class 2, as defined in directive the expansion tank. -
Page 20: Hydronic Connections
(for location of QS and QF 101 see nitrogen for a period of one month. If the heat transfer wiring diagram). fluid does not comply with the Carrier S.A. regulations, To ensure frost protection down to -20°C, water circulation in the nitrogen charge must be added immediately. - Page 21 Typical hydronic circuit diagram Legend Installation components Components of the unit and hydronic module 12 Air vent Victaulic screen filter 13 Thermometer sleeve Expansion tank 14 Flexible connection Safety valve 15 Check valve Available pressure pump 16 System water drain plug (on connection pipe supplied in the unit) Purge valve and pressure tap 17 Pressure gauge Pressure gauge to measure the plate heat exchanger pressure drop (to be...
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Page 22: Nominal System Water Flow Control
10 - NOMINAL SYSTEM WATER FLOW CONTROL Entering water pressure reading The water circulation pumps of the 30RA units have been sized to allow the hydronic modules to cover all possible configurat- ions based on the specific installation conditions, i.e. for various temperature differences between the entering and the leaving water (∆T) at full load, which can vary between 3 and 10°C. - Page 23 Pump curve and water flow control as a function of When the circuit is cleaned, read the pressures at the the system pressure drops pressure gauge (entering water pressure - leaving water pressure), expressed in bar and convert this value to kPa Example: 30RA 100 at Eurovent conditions of 4.8 l/s (multiply by 100) to find out the plate heat exchanger pressure drop.
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Page 24: Pump Pressure/Flow Rate Curves
10.2 - Pump pressure/flow rate curves Single pumps Water flow rate, l/s Legend 30RA 040-070 30RA 080-100 30RA 120-160 30RA 200-240 Dual pumps Water flow rate, l/s Legend 30RA 040-100 30RA 120-160 30RA 200-240... -
Page 25: Available Static System Pressure
10.3 - Available static system pressure Single pumps Legend Water flow rate, l/s 30RA 040 30RA 050 30RA 060 30RA 070 30RA 080-090 30RA 100 30RA 120 30RA 140 30RA 160 10 30RA 200 11 30RA 240 Dual pumps 9 10 Water flow rate, l/s Legend 30RA 040... -
Page 26: Start-Up
11 - START-UP Depending on the installation and control type, each unit can control its own water pump. If there is only one common pump 11.1 - Preliminary checks for the two units, the master unit can control this. In this case shut-off valves must be installed on each unit. -
Page 27: Maintenance
12 - MAINTENANCE In order to measure the liquid refrigerant pressure and tempera- ture ahead of the expansion device, an access port must be Any technician attending the machine for any purpose must be opened on the expansion device which causes a slight air bypass fully qualified to work on refrigerant and electrical circuits. -
Page 28: Electrical Maintenance
12.2.2 - Principles 12.2.4 - Undercharge Refrigeration installations must be inspected and maintained If there is not enough refrigerant in the system, this is indicated regularly and rigorously by specialists. Their activities must be by gas bubbles in the moisture sight glass. overseen and checked by properly trained people. -
Page 29: Condenser Coil
R407C characteristics Saturated bubble Saturated dew Saturated bubble Saturated dew Saturated bubble Saturated dew (relative) point temp. °C point temp. °C (relative) point temp. °C point temp. °C (relative) point temp. °C point temp. °C -28.55 -21.72 10.5 23.74 29.35 47.81 52.55 1.25... -
Page 30: Aquasnap Maintenance Program
The equipment is supplied with polyolester oil (POE). Only who have been trained on Carrier products, observing all use oil approved by Carrier. On request Carrier can carry out Carrier quality and safety standards. an oil analysis of your installation. - Page 31 Service C Carry out the operations listed under Service B. Refrigerant circuit Check the leak-tightness of the circuit and ensure that there is no piping damage. Carry out an oil contamination test. If acid, water or metallic particles are present replace the oil in the circuit. Verify the tightening of the thermostatic mechanism of the expansion device.
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Page 32: Start-Up Checklist For 30Ra Liquid Chillers (Use For Job File)
14 - START-UP CHECKLIST FOR 30RA LIQUID CHILLERS (USE FOR JOB FILE) Preliminary information Job name: ........................................ Location: ......................................... Installing contractor: ....................................Distributor:......................................Start-up preformed by: ............... Date: ....................Equipment Model 30RA: .................. S/N ....................Compressors Circuit A Circuit B 1. - Page 33 Unit start-up Chilled water pump starter has been properly interlocked with the chiller Oil level is correct Unit has been leak checked (including fittings) Locate, repair, and report any refrigerant leaks ..............................................................................................................................Check voltage imbalance: AB ....AC ....BC ....Average voltage = ........
- Page 34 Carry out the QUICK TEST function (see 30RA/RH - 30RY/RYH “B” Pro-Dialog Plus Control manual): Check and log on to the user menu configuration Load sequence selection ................................ Capacity ramp loading selection ............................Start-up delay ..................................Burner section ..................................Pump control ..................................Set-point reset mode ................................
- Page 36 Order No.: 13435-76, 09.2003 - Supersedes order No.: 13435-76, 04.2002. Manufactured by: Carrier SA, Montluel, France Manufacturer reserves the right to change any product specificatiuons without notice. Printed in the Netherlands Printed on totally chlorine-free paper.