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RAU-SVX01G-GB

Foreword

These instructions are given as a guide to good practice in the installation, start-up, operation, and maintenance by 
the user, of Trane RAUL. They do not contain full service procedures

necessary for the continued successful operation of this equipment. The services of a qualifi ed technician should 
be employed through the medium of a maintenance contract with a reputable service company. Read this manual 
thoroughly before unit start-up.

Units are assembled, pressure tested, dehydrated, charged and run tested before shipment.

Warnings and cautions

Warnings and Cautions appear at appropriate sections throughout this manual. Your personal safety and the proper 
operation of this machine require that you follow them carefully. The constructor assumes no liability for installations 
or servicing performed by unqualifi ed personnel.

WARNING!:

 Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION!:

 Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. 

It may also be used to alert against unsafe practices or for equipment or property-damage-only accidents.

Safety recommendations

To avoid death, injury, equipment or property damage, the following recommendations should be observed during 
maintenance and service visits:

1. 

The maximum allowable pressures for system leak testing on low and high pressure side are given in the 
chapter «Installation». Always provide a pressure regulator.

2.  Disconnect the main power supply before any servicing on the unit.

3.  Service work on the refrigeration system and the electrical system should be carried out only by qualifi ed and 

experienced personnel.

Reception

On arrival, inspect the unit before signing the delivery note. 

Reception in France only:

In case of visible damage: The consignee (or the site representative) must specify any damage on the delivery 
note, legibly sign and date the delivery note, and the truck driver must countersign it.  The consignee (or the site 
representative) must notify Trane Epinal Operations - Claims team and send a copy of the delivery note. The customer 
(or the site representative) should send a registered letter to the last carrier within 3 days of delivery.

Note: for deliveries in France, even concealed damage must be looked for at delivery and immediately treated as 
visible damage. 

Reception in all countries except France:

In case of concealed damage: The consignee (or the site representative) must send a registered letter to the 
last carrier within 7 days of delivery, claiming for the described damage.  A copy of this letter must be sent to 
Trane Epinal Operations - Claims team.

Warranty

Warranty is based on the general terms and conditions of the manufacturer. The warranty is void if the equipment is 
repaired or modifi ed without the written approval of the manufacturer, if the operating limits are exceeded or if the 
control system or the electrical wiring is modifi ed. Damage due to misuse, lack of maintenance or failure to comply 
with the manufacturer’s instructions or recommendations is not covered by the warranty obligation. If the user does 
not conform to the rules of this manual, it may entail cancellation of warranty and liabilities by the manufacturer.

General information

Summary of Contents for RAUL 190

Page 1: ...1G GB RAUL Air Cooled Condensing Unit Sizes 190 260 300 350 400 450 500 600 700 800 July 2020 Confidential and proprietaryTrane information Original instructions To be used with the CH530 control module manual ...

Page 2: ... instructions 5 Handling 5 Installation 5 Refrigerant lines 6 Refrigerant charge all split system types 7 Oil charge 7 Electrical connections 10 Temperature sensor 10 Hot gas bypass control option 10 Capacity control modes 11 General start up 12 Start up Preparation 12 Start up 12 Control System 15 Unit operations 15 Week end shutdown 15 Seasonal shutdown 15 Seasonal start up 15 Operation 15 Maint...

Page 3: ...upply before any servicing on the unit 3 Service work on the refrigeration system and the electrical system should be carried out only by qualified and experienced personnel Reception On arrival inspect the unit before signing the delivery note Reception in France only In case of visible damage The consignee or the site representative must specify any damage on the delivery note legibly sign and d...

Page 4: ...c Do not vent into the atmosphere any refrigerant The handling of refrigerant shall be fulfilled by a qualified service engineer 1 GWP global warming potential Maintenance contract It is strongly recommended that you sign a maintenance contract with your local Service Agency This contract provides regular maintenance of your installation by a specialist in our equipment Regular maintenance ensures...

Page 5: ...tween the supporting floor and the unit to attenuate vibrations 4 pads for the sizes 190 to 300 6 pads for the sizes 350 to 800 Trane does not allow the installation of spring isolators Clearance Respect recommended clearance around the unit to allow maintenance operation to take place without obstruction and recommended clearance around condenser CAUTION Unit operation depends on the air temperat...

Page 6: ...s per the following criteria 1 Maximum load operating conditions 2 To avoid any evaporation risk Consider the vertical risers Maximum pressure drop must not exceed 1 to 2 C 3 Liquid circulation speed in a 0 5 to 2m s range Discharge lines Discharge lines should be calculated to obtain the gas displacement speed in horizontal and vertical lines required to drive compressor oil Determine diameter of...

Page 7: ...go more than 0 7 bar above the high pressure switch setpoint Introduce enough refrigerant into circuit in order to obtain a pressure of 85 to 100 kPa Search for possible leaks using detector This operation should be carried out with great care throughout the system If leaks are detected pump down the refrigerant and repair defective component Repeat test process to check that the repair can withst...

Page 8: ... Plate Fin Plate Fin Plate Fin Plate Fin Plate Fin Tube size mm 9 52 9 52 9 52 9 52 9 52 9 52 9 52 9 52 9 52 9 52 Tube type Smooth Smooth Smooth Smooth Smooth Smooth Smooth Smooth Smooth Smooth Height mm 1219 1219 1219 1219 1219 1219 1219 1219 1219 1219 Length mm 2743 2743 2743 3455 4115 4115 5486 5486 5486 5486 Face Area m2 3 34 3 34 3 34 4 21 5 02 5 02 6 69 6 69 6 69 6 69 Rows 2 2 3 3 3 3 2 3 3 ...

Page 9: ...e Fin Plate Fin Plate Fin Plate Fin Plate Fin Plate Fin Plate Fin Plate Fin Tube size mm 9 52 9 52 9 52 9 52 9 52 9 52 9 52 9 52 9 52 9 52 Tube type Smooth Smooth Smooth Smooth Smooth Smooth Smooth Smooth Smooth Smooth Height mm 1219 1219 1219 1219 1219 1219 1219 1219 1219 1219 Length mm 2743 2743 2743 3455 4115 4115 5486 5486 5486 5486 Face Area m2 3 34 3 34 3 34 4 21 5 02 5 02 6 69 6 69 6 69 6 6...

Page 10: ...ownstream to the DX coil evaporator Refer to supplied wiring diagram for connection of sensors To place the sensor into the airflow the technician will have to cut the cable between the electronic case and the sensing element and then reconnect both elements with a twisted pair cable with a maximum distance of 300m Hot gas bypass control option The hot gas bypass option only provides a relay conta...

Page 11: ...control optional which are described below At least one of these options must be configured Air temperature control standard Units with an evaporator leaving air temperature sensor is capable of air temperature control Air temperature control is used on RAUL units if the external capacity control feature is not selected Air temperature control will require an active air temperature setpoint based ...

Page 12: ...power supply switch is sound On start up of each motor in the system check the direction of rotation and operation of all the components they drive Check that there is sufficient demand for cooling on the day of start up around 50 of nominal load Start up Follow the instructions below to correctly start up the unit Installation and unit inspection Ensure that all the operations above start up prep...

Page 13: ...ons minimum value 2 megohms Operating parameters statement Switch on main power supply switch Start up the unit by pushing auto on the control module screen After unit start up leave in operation for at least 15 minutes to insure pressures are stabilized Then check voltage compressors and fan motors currents suction temperature and pressure ambient air temperature blowing air temperature discharge...

Page 14: ...e compressor nameplate Excessive emulsion of the oil in the compressor shows that refrigerant is present in the oil and the result will be that compressor is not lubricated enough Shut down compressor and consultTrane technician Excess oil in compressor can damage the compressor Before adding oil consultTrane technician Use onlyTrane products recommended The compressors must operate in a single di...

Page 15: ...s and voltage Check operation of machines compare conditions of operation against original commissioning data Push the stop button of the module Insure that all safeties are taken to protect the compressor against refrigerant migration Fill out the visit log sheet and review with the operator Do not put the general and control disconnect switches to off Seasonal start up Check operational set poin...

Page 16: ...trols Check operation of all safety devices Inspect contacts tighten terminals Megger the motor compressor windings Record operating pressures temperatures amperages and voltage Carry out leak test Check configuration of unit control module Carry out oil analysis Change the oil as required based upon results of the oil analysis Check operation of machines compare conditions of operation against or...

Page 17: ...heck filter dryer and sight glass presence Check oil traps presence on discharge line if there vertical risers 3m Check pitch for horizontal lines 1cm m Check refrigerant presence Electrical equipment Check direction of rotation of compressors and fan motors Check installation and rating of mains power switch fuse Check that electrical connections comply with specification Check that electrical co...

Page 18: ...tructions for discharge pressure high B Compressor stops High pressure switch tripped Over current thermal relay tripped Discharge pressure too high See instructions for discharge pressure high a Voltage too low b Cooling demand too high or condensing temperature too high a Contact Power Supply Utility b See instruction discharge pressure too high Motor temperature thermostat tripped Anti freeze s...

Page 19: ...rates continuously Excess cooling demand on evaporator Check system Suction duct abnormally cold a Expansion valve too far open a Check for superheat and check that expansion valve bulb is secure b Replace Refrigerant flows back to compressor b Expansion valve locked in open position J Suction pressure too low Excessive pressure drop through filter drier Refrigerant does not flow through thermosta...

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Page 22: ...22 RAU SVX01G GB Notes ...

Page 23: ...23 RAU SVX01G GB Notes ...

Page 24: ...ion please visit trane com or tranetechnologies com Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice We are committed to using environmentally conscious print practices 2020Trane RAU SVX01G GB July 2020 Supersedes RAU SVX01F GB January 2012 Confidential and proprietaryTrane information ...

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