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Installation

Operation

Maintenance

RTXC XE Air-to-Water Screw Heat Pump

572568050001

SAFETY WARNING - Only qualified personnels should install and service the equipment. The installation, starting
up, and servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific
knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could result
in death or serious injury. When working on the equipment, observe all precautions in the literature and on the
tags, stickers, and labels that are attached to the equipment.

April 2021

Original Instructions

RTXC-SVX003B-EN

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Содержание RTXC XE Series

Страница 1: ...ating ventilating and air conditioning equipment can be hazardous and requires specific knowledge and training Improperly installed adjusted or altered equipment by an unqualified person could result in death or serious injury When working on the equipment observe all precautions in the literature and on the tags stickers and labels that are attached to the equipment April 2021 Original Instructio...

Страница 2: ...ndle refrigerants must be certified Know and follow the applicable laws for handling reclaiming recovering and recycling of certain refrigerants and the equipment used in these service procedures WARNING Contains Refrigerant System contains oil and refrigerant under high pressure Recover refrigerant to relieve pressure before opening the system See unit nameplate for refrigerant type Do not use no...

Страница 3: ...signers such as piping diameter etc Water pump head pressure matches actual water side Resistance Water strainer installed before inlet of the unit and cleaned prior to connection Water pressure guages installed with shutoff valves to monitor evaporator pressure drop Vibration eliminators equipped to prevent vibration transmission through the water pipes Air vent drain and feed valve at the right ...

Страница 4: ...ble items listed above have been satisfactorily completed Checklist Completed by Print Name SIGNATURE DATE In accordance with your quotation and our purchase order number we therefore require the presence of Trane service on this site for the purpose of start up and commissioning by ______________ date Note Minimum of two week advance notification is required to allow for scheduling of unit start ...

Страница 5: ...General Information 7 General Data 10 Installation Requirements 11 Electrical Controls 30 Controls 36 Operating Principles 38 Pre Start Checkout 42 Unit Start up and Shut down Procedures 46 Periodic Maintenance 49 Maintenance and Service 51 ...

Страница 6: ...ication Interface L Lon Talk Communication Interface Digit 15 External Water Temperature Setpoint Current Limit Setpoint N No External Setpoint Input R External Leaving Water Temp Setpoint C External Current Limit Setpoint B External Leaving Water Temp External Current Limit Setpoint Digit 16 Programmable Relays N No Programmable Relays A With Programmable Relays Digit 17 Installation Accessories ...

Страница 7: ...ction of water pipes as well as the electric control wiring and setting refer to MasterSlave unit wiring connection part of this manual Reception To protect against loss due to damage incurred in transit complete the following checklist upon receipt of the unit When the unit is delivered verify that it is the correct unit and that it is properly equipped Compare the information which appears on th...

Страница 8: ...ified service organization and the appropriate Trane sales office Note Pressure will be approximately 200kPa gauge 29 psig if shipped with a refrigerant waiting charge Nameplate The RTXC XE unit nameplates are applied to the exterior surface of the top cover above the control panel door A compressor nameplate is located on each compressor The evaporator nameplate is located on the shell And the in...

Страница 9: ...26 134 132 125 129 SCOP 3 22 3 42 3 38 3 20 3 31 Water flow rate l s 18 26 31 32 37 Pressure drop kPa 62 36 46 47 66 Compressor Type Semi Hermetic Twin Screw Compressor Number of compressors 1 2 2 2 2 Number of circuit 1 2 2 2 2 Minimum load 30 15 15 15 15 Refrigerant R134a Refrigerant Charge kg 175 310 310 350 350 Oil Charge kg 10 20 20 20 20 Max Operating Amps A 262 405 405 474 474 Starting Amps...

Страница 10: ...und connection s BAS wiring optional Chilled water pump contactor and wiring including interlock Option relays and wiring optional Evaporator water bypass valve and wiring optional Water piping Vents and drain Flow switches Taps for thermometers and gauges valves on waterbox Optional Thermometers Water pressure gauge Strainers as required Vibration Eliminators Isolation and balancing valves in wat...

Страница 11: ...t be level within 6 mm over its length and width Trane is not responsible for equipment problems resulting from an improperly designed or constructed foundation NOTICE Foundation is necessary for the convenience of unit service and maintenance Clearances Locate the unit so that the condenser airflow is unrestricted both above and on the sides of the unit Provide enough space around the unit to all...

Страница 12: ...12 Fiqure 3 1 Installation Clearance RTXC110XE Fiqure 3 2 Installation Clearance RTXC160 180XE Fiqure 3 3 Installation Clearance RTXC200 220XE ...

Страница 13: ...ng shutdown or repair or the condensate water generated by coil during defrost A drain connection is located at the bottom of the evaporator waterbox Also remove the vent plugs at the top of the waterbox to facilitate complete drainage All local and national codes apply WARNING Hazardous Voltage No stagnant water on the installation site and the water drainage pipes must be ensured to prevent wate...

Страница 14: ... of the unit with lifting chains 3 Each of the cables chains or slings used to lift the unit must be capable of supporting the entire weight of the unit See Table 2 4 keep cables or chains clear of unit sides As further protection plywood sheets may be placed against sides of unit behind cables or chains 5 After test lift unit at minimal height to verify even level lift raise and set unit down car...

Страница 15: ...15 Figure 4 2 Rigging RTXC160 180XE Figure 4 3 Rigging RTXC200 220XE Figure 4 RTXC XE Rigging ...

Страница 16: ...n excessive deflection 1 Refer to Table 3 Isolator Selection install the optional neoprene isolators at each mounting location as Figure 5 Isolator Placement Isolators are identified by part number and color 2 Secure the isolators to the mounting surface using the mounting slots in the isolator base plate as shown in Figure 6 Neoprene Isolator Do not fully tighten the isolator mounting bolts at th...

Страница 17: ...LATOR CONTROL PANEL LOCATION Figure 5 1 Isolator Placement RTXC110XE CONTROL PANEL LOCATION Figure 5 2 Isolator Placement RTXC160 180XE Figure 5 3 Isolator Placement RTXC200 220XE Figure 5 Isolator Placement ...

Страница 18: ...RJ RD1 RD2 R03 TYPE R4 RD4 Part Number Fig A mm B mm C mm D mm E mm H mm L mm M mm W mm T ype Colour X10140305630 2 76 2 12 7 127 0 14 2 9 7 69 9 158 8 40 6 6 35 117 6 RDP4 WR Green yellow X10140305640 2 76 2 12 7 127 0 14 2 9 7 69 9 158 8 40 6 6 35 117 6 RDP4 WR Dark grey Figure 6 Neoprene Isolator Cover Plate for combined unit Installation 1 Keep master and slave units level and aligned 2 Cover ...

Страница 19: ...19 Figure 7 Cover Plate Installation ...

Страница 20: ... to monitor entering and leaving water temperatures 4 A field supplied water strainer with a minimum size of 20 mesh must be installed close to the evaporator inlet to prevent debris from damaging internal tubes of the evaporator 5 Install a balancing valve in the leaving water line to control water flow balance Install shutoff valves on both the entering and leaving water lines so that the evapor...

Страница 21: ...ALVE Entering Water Piping Water strainer Vibration eliminators Water pressure gauges with shutoff valves Thermometers if desired Shutoff isolation valves Drain valve Leaving Water Piping Drain valve Shutoff isolation valves Vibration eliminators Balancing valve Thermometers if desired Flow switch Water pressure gauges with shutoff valves Air vents to bleed air from system Minimum Water Loop Volum...

Страница 22: ...in the direction of the water flow after switch tighten to final position To prevent switch fluttering remove all air from the water system Adjust the switch to open when water flow falls below the required minimum shown onthe pressuredrop curves as Figure 10 Flow switch contacts are closed on proof of water flow Wire flow switches in series with the water pump interlocks as in Trane wiring diagra...

Страница 23: ...ressure gauges or taps in a straight run of pipe avoid placement near elbows etc Be sure to install the gauges at the same elevation Provide shutoff valves in lines to the gauges to isolate them from the system when they are not in use To read manifolded pressure gauges open one valve and close the other depending upon the reading desired This eliminates errors resulting from differently calibrate...

Страница 24: ...exposed to freezing temperatures 4 Water pumps must be controlled by the UC800 to avoid evaporator tube from freezing by refrigerant migration after unit stop When no unit operation is possible and the pump is already off UC800 anti freeze protection function will command the pump to ciculate water to avoid freezing in low ambient temperature condition 5 Thoroughly drain the water from partial hea...

Страница 25: ... UC800 outputs 0 10VDC signal to adjust the opening of the two way electric valve to make the leaving water temperature of the unit gradually approach set point thereby improving defrosting and heating performance of the unit The detailed installation is shown in Figure 11 and Figure 12 Chiller Control Panel Evaporator Water Pump Figure 11 Single evaporator water bypass valve setup Figure 12 Dual ...

Страница 26: ...s and legislation applicable at the jobsite location regarding the use of drinkable water The use of the water circulating in the heat recovery exchanger as drinkable water is not recommended An intermediate heat exchanger should be used Figure 13 Typical Partial Heat Recovery piping For recommended partial heat recovery piping see Figure 13 all the hot water related parts and controller are field...

Страница 27: ... recovery water pump should be activated only in cooling mode and stopped in heating mode Thoroughly drain the water from partial heat recovery water loop in winter NOTICE BPHE Anti freeze Protection Failure to connect circuit breaker 1Q4 after partial heat recovery BPHE filled with water may result in BPHE freeze failure in winter NOTICE BPHE Heater Damage To prevent partial heat recovery BPHE el...

Страница 28: ...s and wires to interfere with other components structural members or equipment All conduits cables and wires must have sufficient length to fit the location adjustment of compressors and starters Refer to below table for the recommended wire sizes RTXC XE Unit Size 110 160 180 200 220 310 330 360 400 440 Rated Voltage V Hz Ph 400 1 0 50 3 400 1 0 50 3 400 1 0 50 3 400 1 0 50 3 400 1 0 50 3 400 1 0...

Страница 29: ...110Vac and 24Vac power supply to the unit control system The control section includes I O modules power supply modules starter modules and the user interface Power Supply Wiring All wiring must comply with local codes Entrance for incoming power wiring is located on the lower right side of the starter panel The wiring is connect to the disconnect switch or optional circuit breaker Unit water pump ...

Страница 30: ... dry contact of the chilled water pump running feedback in series then connect to terminal 1X5 39 and 1A6 J3 2 When the chilled water pump is controlled by customer the water flow switch needs to be connect to terminal 1X5 39 and 1A6 J3 2 For Master Slave unit when the chilled water pump is corresponding with specific unit and controlled by this unit the customer shall connect the water flow switc...

Страница 31: ...ovided with the option The default assignments for the four available relays of the RTXC XE Alarm and Status Package Option are LLID Naming Assignment Contact Terminal Default Setting Unit Status Programmable relay Relay 1 1A21 J2 10 11 12 Maximum Capacity Relay 2 1A21 J2 7 8 9 Compressor Running Relay 3 1A21 J2 4 5 6 Alarm Relay 4 1A21 J2 1 2 3 Unit limit The relay will be energized when the even...

Страница 32: ...he UC800 provides inputs J2 5 and J2 6 of module 1A22 that accept either 4 20 mA or 2 10 VDC signals to set the External Chilled Hot Water Setpoint When unit is running under cooling mode external water setpoint will be set as the chilled water temperature setting External water temperature setpoint shall have the configuration with maximum and minimum value When unit is running under heating mode...

Страница 33: ...The Master Slave unit operation is conducted by the wired connection among Unit Running Stop Output module 1A26 External Auto Stop module 1A14 and Heating Cooling Mode Setting module 1A19 Connect the 1A26 J2 6 of Master unit to 1A19 J2 3 of Slave unit Connect the 1A26 J2 4 of Master unit to 1A19 J2 4 of Slave unit Connect the 1A26 J2 3 of Master unit to 1A14 J2 1 of Slave unit Connect the 1A26 J2 ...

Страница 34: ...MAC address or MODBUS ID 2 LINK for BACnet MS TP or MODBUS Slave two terminals Field wired if used 3 LINK for BACnet MS TP or MODBUS Slave two terminals Field wired if used 4 Machine bus for existing machine LLIDs IPC3 Tracer bus 19 200 baud IPC3 Bus used for Comm4 using TCI or LonTalk using LCI C 5 Power 210 mA at 24 Vdc and ground terminations same bus as item 4 Factory wired 6 IMC for MODBUS Ma...

Страница 35: ...es data from other devices on the link The LINK LED is solid green if the Ethernet link is connected and communicating Ethernet Link The ACT LED blinks yellow at the data transfer rate when data flow is active on the link The Service LED is solid green when pressed For qualified service technicians only Service Do not use Important Maintain at least 6 inches between low voltage 30V and high voltag...

Страница 36: ... the male rotor bore area of the housing providing continuously variable unloading from 60 to approximately 100 of compressor suction flange volume flow rate Economizers can be used with the compressor to increase cycle capacity and in some cases improve cycle efficiency depending on the port machined into the rotor housing for economizer gas injection The economizer should only be modulated once ...

Страница 37: ... refrigerant loop uses two electrical expansion valves for cooling and heating respectively In cooling condition cooling EXV modulate according to the liquid level of the falling film monitoring by liquid level sensor In heating condition the heating EXV is controlled by regulating the suction superheat of the compressor The flow of refrigerant into the economizer branch is alse controlled by the ...

Страница 38: ... energized Closed de energized Discharge valve Open de energized Closed energized Compressor stopped Cooling shutdown Heating shutdown Fill valve Closed de energized Closed de energized Discharge valve Open de energized Closed energized Partial Heat Recovery Option The partial heat recovery is comprised of an auxiliary BPHE heat exchanger installed in the discharge line between the oil separator a...

Страница 39: ...hanger evaporator Min temperature C Max temperature C Entering water temperature startup 45 Leaving water temperature running 5 18 Partial heat recovery heat exchanger Hot water Min temperature C Max temperature C Entering hot water temperature startup 10 50 Entering hot water temperature running 25 60 Note altitude up to 1000 m above sea level NOTICE Anti freeze Protection Failure to follow the a...

Страница 40: ...n and tight to avoid terminal connections overheating and compressor motor under voltage and eventually fail Verify that all valves are in right position Except the service valve of receiver should be closed shown in Figure 17 1 Receiver service valve all other valves should be fully opened prior to unit startup including angle valve of compressor oil line face to the valve stem turning the stem c...

Страница 41: ...es no responsibility for equipment failures which result from untreated or improperly treated water or saline or brackish water 7 Prove all interlock Interconnecting Wiring and External wiring as described in the manual such as water flow switch and chilled water pump interlock 8 Start the chilled water pump to circulate of the water to vent air in the water system Inspect all piping for leakage a...

Страница 42: ...it If the measured voltage on any lead is not within the specified range notify the supplier of the power and correct the situation before operating the unit CAUTION Equipment Damage Inadequate voltage to the unit may cause control components to malfunction and shorten the life of relay contact compressor motors and contactors Unit Voltage Imbalance Excessive voltage imbalance between the phases o...

Страница 43: ...tch 5 Read the phase sequence on the indicator The ABC LED on the face of the phase indicator will glow if phase is ABC 6 If the CBA indicator glows instead open the unit main power disconnect and switch two line leads on the line power terminal block s or the unit mounted disconnect Reclose the main power disconnects and recheck the phasing CAUTION Equipment Damage Do not interchange any load lea...

Страница 44: ...strophic damage to the compressor will occur if the oil line shut off valve or the isolation valves are left closed on unit start up 4 Power on the electrical heater of evaporator 5 Ensure that the Uninterruptible Power Supply to the heaters of compressor oil sump and oil separator has been operating properly for a minimum of 12 hours before starting Failure to do so may result in compressor damag...

Страница 45: ...ations prior to shipment The shipment is made with a waiting charge and should be completed by refrigerant charge on site Identify and repair eventual leak points before field charge to avoid refrigerant over charge and excessive power consumption Unit Shut down Temporary Shutdown and Restart To shutdown for a short time is used for control operation maintenance or to repair the unit use the follo...

Страница 46: ...e OPEN position 5 Drain the chilled water system Remove the drain and vent plugs from the evaporator waterbox to drain the evaporator Note If unit downtime more than one month recommend to fill low pressure nitrogen to avoid pipe and evaporator shell corrosion 6 Drain the heat recovery water system if installed 7 At least every three months quarterly check the refrigerant pressure of the unit to v...

Страница 47: ...re differential between the two sides of the refrigerant filter and oil return filter Replace the filter element if necessary 6 Inspect the entire system for unusual conditions and repair if needed NOTICE Each RTXC XE unit is factory leak tested refrigerant charged and tested for proper operations prior to shipment Identify and repair the leak point beofore field charge to avoid refrigerant over c...

Страница 48: ...nually rotate the condenser fans to ensure all the fans can rotate freely 10 Check and tighten all electrical connections as necessary 11 Inspect the entire system for unusual conditions TD7 Log Refer to following Figure 18 and Figure 19 Operator Log can be captured on TD7 Figure 18 Report Figure 19 Log Sheet Table 10 RTXC XE Pre Start Check List RTXC XE Start up Test Log Jobsite Name Jobsite Loca...

Страница 49: ...r Witness Signature ____________________________ Maintenance and Service Refrigerant Field Charge Procedure Once the system is deemed leak and moisture free following the procedures to add refrigerant charge Refer to Figure 1 Unit Nameplate for refrigerant charge information 1 Unit is empty of all refrigerant and under vacuum 2 Attach charge hose to evaporator service valve and exclude the air in ...

Страница 50: ...overing the refrigerant charge from the system should be done using certified recycling equipment and approved storage containers and by following proper procedure Never release refrigerant into the atmosphere or discharge refrigerant into the container by compressor operation of the unit Recover the refrigerant through the service port of liquid line and evaporator The following information is to...

Страница 51: ...place if damaged 11 Install flange and torque bolts to 19 22 Nm 14 16 lb ft 12 Attach vacuum hose and evacuate liquid line 13 Remove vacuum hose from liquid line and attach charging hose 14 Replace stored charge in liquid line 15 Remove charging hose 16 Open liquid line isolation valve Compressor Oil CAUTION Compressor Damage Use only Trane OIL00317 Failure to do so may cause compressor damage and...

Страница 52: ...osion algae or slime It is recommended that the services of a qualified water treatment specialist be engaged to determine what water treatment if any is required The Trane Company assumes no responsibility for equipment failures which result from untreated or improperly treated water saline or brackish water Since the water side heat exchanger is typically part of a closed circuit it does not acc...

Страница 53: ...or serious injuries 6 Work a round nylon brush 1 inch attached to a rod in and out of each of the water tubes to loosen the sludge Do not use steel wire brush to avoid tube damage Thoroughly flush the condenser water tubes with clean water Note To clean internally enhanced tubes use a bi directional brush or consult a qualified service organization for recommendations 7 Reassembly Once service is ...

Страница 54: ...41 15 RTXC 400XE 692 86 1003 183 187 54 25 79 191 41 15 RTXC 440XE 692 86 1003 183 187 54 25 79 191 41 15 Note all data is the weight of single component Chemical Cleaning Procedure Scale deposits are best removed by chemical means Consult qualified water treatment specialist for a recommended cleaning solution A standard chilled water circuit is composed solely of copper cast iron and steel Impro...

Страница 55: ...keep on file for review the following technical documentation Operating and maintenance instructions Technical drawings Description of measures designed to ensure conformity Other technical documentation e g quality assurance measures for design and production Name and address of the person established in the Community complied the technical files SOCIETE TRANE 1 rue des Ameriques F 88190 GOLBEY R...

Страница 56: ...or commercial and residential applications For more information please visit trane com or tranetechnologies com Trane has a policy of continuous product and product data improvements and reserves the right to change design and specifications without notice 2021 Trane All rights reserved RTXC SVX003B EN April 2021 ...

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