Page 2 - Disconnect the main power; Reception; Reception in France only:; General information
Foreword These instructions are given as aguide to good practice in theinstallation, start-up, operation, andmaintenance by the user, of TraneTKD/TKH, WKD/WKH and YKD/YKHunits. They do not contain fullservice procedures necessary forthe continued successful operationof this equipment. The services o...
Page 3 - The unit is set on the roof curb; Training
Warranty Warranty is based on the generalterms and conditions of themanufacturer. The warranty is void ifthe equipment is repaired ormodified without the writtenapproval of the manufacturer, if theoperating limits are exceeded or ifthe control system or the electricalwiring is modified. Damage due t...
Page 4 - Contents; Installation
RT-SVX19A-E4 4 Contents Foreword 2 Warnings and Cautions 2 Safety recommendations 2 Reception 2 Warranty 3 Refrigerant 3 Maintenance contract 3 Storage 3 Training 3 Installation 6 Reception of units 6 Roof curb installation 7 Dimensions/Weights/Clearances 8 Installing the unit 10 Connection of duct ...
Page 5 - Unit Options
Contents 5 RT-SVX19A-E4 Unit Options 40 Hot water coil 40 Electric Heater 41 Soft Starter 41 0 - 25% fresh air hood 42 Barometric relief 43 Operation 44 Operation with a conventional thermostat 44 Setting the economizer 47 Test procedures 49 Test modes 50 Unit start-up 51 Cooling without an Economiz...
Page 6 - Reception of units; Rooftop unit; Use a lifting beam correctly; Unit handling; For unit to fit on the; Figure 1a - Unit handling
Installation RT-SVX19A-E4 6 General information : Theinstallation must conform to alllocal standards and regulations. Reception of units Rooftop unit The unit is supplied on a woodenframe. It is recommended to checkthe machine's condition uponreception. There are two ways to handle theunit:1. Use th...
Page 8 - Figure 3 - Minimum clearances
Installation RT-SVX19A-E4 8 Dimensions/Weights/Clearances Figure 3 - Minimum clearances Table 2 - Minimum clearances (mm) The structure accommodating the unit(s) must be designed to support theequipment in operation, as a minimum. Refer to Table 3a and the spacerequirement plan. Minimum clearance UN...
Page 9 - Table 3b - Weights of Options & accessories
Installation 9 RT-SVX19A-E4 Installation Table 3a - Weigths & center of gravity (Figure 1) 1. Corner weights are given for information only. All models must be supported continuously by a curb or equivalent frame support. Table 3b - Weights of Options & accessories Notes :Net weight should b...
Page 10 - Installing the unit; ) Unit mounting on roof; Figure 4
Installation RT-SVX19A-E4 10 Installing the unit 1) Unit mounting on roof Fix the rooftop curb on the jointbeam of the building's structure.Make the rooftop curb's sealingsurface level using angle bracketsadjusted by screw bolts, locatedaround its perimeter. Place theadhesive seals on the curb's sea...
Page 11 - . Installation of a section of; Figure 6 - Condensate Drain location
Installation 11 RT-SVX19A-E4 RT-SVX19A-E4 Connection of ductnetwork 1) Downflow discharge units(TKD,WKD,YKD) Using the rooftop curb• The rooftop curb must beinsulated on the outside walls atthe discharge and intakeopenings to preventcondensation in the ducts. • The rims around the dischargeand intak...
Page 12 - Figure 7 - Condensate drain line connection; Condensate drain piping
Installation RT-SVX19A-E4 12 Figure 7 - Condensate drain line connection 1 = Static pressure drain pan2 = Panel enclosure3 = 42mm PVC drain4 = Cleanout plug RT-SVX19A-E4 Condensate drain piping A 42mm PVC condensate drainconnection with P-trap is provided. Follow local codes and standardpiping pract...
Page 13 - Gas pipework installation; Table 4 - Gas burner models; close valve 4 and open valve 2; Unit
Installation 13 RT-SVX19A-E4 Gas pipework installation The installation must conform to allstandards and regulations. The gas supply pipework and gasstop valve to be installed near theunit must be sized so as to assurethe gas pressure is sufficient at theunit inlet when operating at fullload. CAUTIO...
Page 14 - Filter installation; Table 5 - Filter arrangement
Installation RT-SVX19A-E4 14 CAUTION! Do not operate unitwithout filters in place. The maximum pressure dropsallowable on filters are: EU2/G2: 120 Pa EU4/G4: 150 Pa Filter installation To gain access to filters, remove thesupply fan access panel ondownflow units and the filter accesspanel on the end...
Page 15 - Supply fan adjustment; a. Obtain the design airflow rate
Installation 15 RT-SVX19A-E4 Supply fan adjustment Use the following procedure todetermine the proper adjustment ofthe supply fan for a specificapplication.1. Determine total external static pressure about system andaccessories. a. Obtain the design airflow rate and the design external staticpressur...
Page 16 - To increase airflow
Installation RT-SVX19A-E4 16 To increase airflow Loosen variable sheave set screwand turn sheave clockwise. To decrease airflow Loosen variable sheave set screwand turn sheave counter-clockwise. To increase belt tension Loosen the nut (next to the idlersheave) that secures the sheave inplace. With a...
Page 17 - Component air pressure drops
Installation 17 RT-SVX19A-E4 Component air pressure drops Table 7 - YKD/YKH Pressure drop through accessories Filter Filter Economizer Economizer Airflow EU2/G2 EU4/G4 100% outside air 100% return air YKD/YKH 155 6800 13 27 8 6 7650 16 30 10 7 8500 19 34 12 8 9350 22 37 14 9 10200 26 40 16 10 YKD/YK...
Page 20 - Supply fan performances; Table 10 - YK 155 External static pressure
Installation RT-SVX19A-E4 20 Supply fan performances Table 10 - YK 155 External static pressure Standard drive Oversized drive External Static Pressure (Pa) 275 300 325 350 375 400 425 450 475 500 m 3 /h RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) 6800 6...
Page 21 - Table 11 - YK 175 External static pressure; Table 12 - YK 200 External static pressure
Installation 21 RT-SVX19A-E4 Table 11 - YK 175 External static pressure Standard drive Oversized drive Table 12 - YK 200 External static pressure Standard drive Oversized drive External Static Pressure (Pa) 275 300 325 350 375 400 425 450 475 500 m 3 /h RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) R...
Page 22 - Table 13 - YK 250 External static pressure; Table 14 - TK 155 External static pressure
Installation RT-SVX19A-E4 22 Table 13 - YK 250 External static pressure Standard drive Oversized drive External Static Pressure (Pa) 275 300 325 350 375 400 425 450 475 500 m 3 /h RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) 9870 662 1.92 681 2.03 699 2.1...
Page 23 - Table 15 - TK 175 External static pressure; Table 16 - TK 200 External static pressure
Installation 23 RT-SVX19A-E4 Table 15 - TK 175 External static pressure Standard drive Oversized drive External Static Pressure (Pa) 275 300 325 350 375 400 425 450 475 500 m 3 /h RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) 7870 842 1.79 869 1.91 896 2.0...
Page 24 - Table 17 - TK 250 External static pressure; Table 18 - WK 125 External static pressure
Installation RT-SVX19A-E4 24 Table 17 - TK 250 External static pressure Standard drive Oversized drive External Static Pressure (Pa) 275 300 325 350 375 400 425 450 475 500 m 3 /h RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) 9870 714 1.86 733 1.94 751 2.0...
Page 25 - Table 19 - WK 155 External static pressure; Table 20 - WK 200 External static pressure
Installation 25 RT-SVX19A-E4 Table 19 - WK 155 External static pressure Standard drive Oversized drive External Static Pressure (Pa) 275 300 325 350 375 400 425 450 475 500 m 3 /h RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) 6800 787 1.29 816 1.38 843 1.4...
Page 26 - Electrical connection; Over current protection; accordance with local legislation.; Figure 10 - Power supply
Installation RT-SVX19A-E4 26 Electrical connection The electric panel is located in theunit compressor section. Removethe compressor access panel. Theunit is designed to run with 400 V+/- 5%/50 Hz/ 3 ph. Factory supplied Disconnect switch(Option) The disconnect switch is factorymounted. It is locate...
Page 27 - Scroll compressors
Installation 27 RT-SVX19A-E4 Scroll compressors Compressor electrical phasing Proper phasing of the electricalpower wiring is critical for properoperation and reliability of the scrollcompressor and fans. Proper rotation of the scrollcompressor must be establishedbefore the unit is started. This isa...
Page 28 - Compressor
Installation RT-SVX19A-E4 28 Table 22 - Electrical data - TKD/TKH Compressor motor and condenser motor (1) At Eurovent rating conditions : Indoor return Air (27°C DB / 19°C WB) - Ambiant 35°C(2) per motor Table 23 - Electrical data - YKD/YKH Compressor motor and condenser motor (1) At Eurovent ratin...
Page 29 - Indoor Fan
Installation 29 RT-SVX19A-E4 Table 24 - Electrical data - WKD/WKH Compressor motor and condenser motor (1) At Eurovent rating conditions : Indoor return Air (27°C DB / 19°C WB) - Ambiant 35°C(2) per motor Table 25 - Electrical data - TKD/TKH Supply fan motor (4) At the nominal airflow with standard ...
Page 30 - Table 28 - Electrical data - Combustion Blower Motorr
Installation RT-SVX19A-E4 30 Table 26 - Electrical data - YKD/YKH Supply fan motor (4) At the nominal airflow with standard drive(5) At the nominal airflow with oversized drive when available Table 27 - Electrical data - WKD/WKH Supply fan motor (4) At the nominal airflow with standard drive(5) At t...
Page 31 - Controls; Control wiring; Unit controlled by thermostat; Figure 11 - Thermostat wiring; Maximum length; Conventionnal
Controls 31 RT-SVX19A-E4 Control wiring The control circuit is 24 V AC. Unitincludes a 400/24 V transformer. WARNING! The unit disconnectswitch must be opened and lockedopen. Risk of injury andelectrocution. CAUTION! The unit 24 V transformermust not be used to poweraccessories mounted on site, othe...
Page 32 - Unit controlled by BAS; communication
Controls RT-SVX19A-E4 32 Unit controlled by BAS Each unit must be equipped with aTCI-R board. A communication bus(twisted shielded pair) must linkeach TCI-R to the Trane Roof TopManager (RTM) or to thecommunication gateway (in thecase of an external BAS). Connectone temperature sensor to eachunit. L...
Page 33 - CO; sensors; Table 30 - Specifications
Controls 33 RT-SVX19A-E4 CO 2 sensors Wall-mounted and duct-mountedCO 2 sensors Table 30 - Specifications WaII-mounted Duct-mounted Measuring range CO 2 0-200 ppm Accuracy at 25°C <+/- [40 ppm CO 2 + 3% of reading] (included repeatability and calibration uncertainty) <+/- [30 ppm CO 2 + 2% of ...
Page 34 - Power supply requirements
Controls RT-SVX19A-E4 34 Power supply requirements CAUTION! Make sure that youconnect the power wire only to the24V terminal. Connecting the powerwire to the output terminal mayresult in equipment damage. The CO 2 sensor is designed to operate with a nominal 24 Vacsupply. The power supply shouldmain...
Page 35 - Mounting the duct-mounted CO; sensor
Controls 35 RT-SVX19A-E4 Mounting the duct-mounted CO 2 sensor1. Select a proper location on the duct to mount the CO 2 sensor. 2. Drill a 22-25 mm hole in the mounting surface for sensorinsertion (Figure 13). 3. Attach the mounting plate to the duct wall with four screws. 4. Insert the sensor throu...
Page 36 - Remote potentiometer; Figure 15 - Remote potentiometer dimensions
Note: This potentiometer allows toadjust the permanent fresh airintake from 0 to 50%. 0 W corresponds to closed fresh airdamper. 270 W corresponds to 50% openfresh air damper. Controls RT-SVX19A-E4 36 Remote potentiometer To install the remote potentiometer,cut the jumper WL on theeconomizer ECA boa...
Page 37 - Fire thermostat; Connection without TCI board; Figure 17 - Duct mounting of fire thermostat
Controls 37 RT-SVX19A-E4 Fire thermostat There are two sensors in the firethermostat Kit: Sensor X13100040-01 is factory-set to open at 57°C.Sensor X13100040-02 is set to openat 115°C. Sensors are mounted directly in theductwork. They should be installedwhere elements can respond quicklyto air tempe...
Page 38 - Clogged filter detector; thermostats are available:; Table 32 - Thermostats features
Controls RT-SVX19A-E4 38 Clogged filter detector This device is mounted in the filtersection. The sensor measures thedifference in pressure before andafter the filter section. Theinformation is sent to the THP03thermostat, to a Tracker™ or to aBMS. Smoke detector This device is used to detect smokei...
Page 39 - Other accessories available; Communication Interfaces; Network at the unit level.; LonTalk; . Space Comfort Controller
Controls 39 RT-SVX19A-E4 Other accessories available Remote temperature sensor to beused with THS/THP 01-02 TZS01: Remote room temperaturesensor to be used with THS/THP 03,Tracker or Varitrac systems. DTS: Duct temperature sensor to beused with THS/THP 03 TZS02: Remote room temperaturesensor with ad...
Page 40 - Hot water coil; Table 33 - Ethylene glycol percentage
Unit Options RT-SVX19A-E4 40 Hot water coil (Down flow units only) In order to prevent water to freezeup in the coil during unoccupiedperiod or shutdown limited period,a thermostat opens when there is arisk of freeze-up. The services of awater treatment specialist arerecommended if water used cancau...
Page 41 - Electric Heater; Figure 19 - Soft starter
Unit Options 41 RT-SVX19A-E4 Electric Heater Electric heaters are fitted on the fandischarge. Heaters have two heating stagesand provided with two types ofoverheat thermostats:• Automatic reset thermostatswhich stop the electric heaterwhen the air temperature rises to76°C. Automatic reset at 60°C. N...
Page 43 - Barometric relief; Figure 21 - Economizer flow chart with barometric relief
This option includes exhaust hoodsand gravity dampers located in thereturn air section (Figure 22). Whenthe pressure of the buildingincrease, the gravity dampers openand relieve air to the outside. If the return air duct pressure dropis higher than the buildingoverpressure, the gravity damperswill n...
Page 44 - Operation
Operation RT-SVX19A-E4 44 Operation with aconventional thermostat The ReliaTel module hasconventional thermostatconnections as well as Zone SensorModule connections. When aconventional thermostat iscontrolling the unit, operationdiffers as follows.• Supply Air Tempering feature isnot available. If o...
Page 45 - Thermostat signals are as follows:; R 24VAC power to thermostat
Operation 45 RT-SVX19A-E4 Thermostat signals are as follows: R 24VAC power to thermostat Y1 Call for compressor 1 or firststage cooling Y2 Call for compressor 2 or 2ndstage cooling G Call for supply fan W1 Call for heat 1 W2 Call for heat 2 Heat pump only: X2 Call for emergency heat O Switchover val...
Page 47 - on the economizer section.; Table 35 - ECA board LED
Operation 47 RT-SVX19A-E4 Setting the economizer or 0-50% motorized hood(option) The ECA board is mounted on thedamper actuator. To access the ECAboard on economizers:• Remove the access panel located on the economizer section. • The electrical power must be disconnected to set theminimum position a...
Page 48 - Figure 22 - Minimum fresh air adjustment
Operation RT-SVX19A-E4 48 Figure 22 - Minimum fresh air adjustment 1 = ECA board 12 34 12 12 12 12 12 12 12 EXF EXF MAT OAH AH/ OAE OAT RAT RAH AH/ RAE DCV DCV 2-10 VDC 2-10 VDC FEED FEEDBACK INPUT INPUT + - + - 2-10 VDC 2-10 VDC CONT ONTROL OUTPUT OUTPUT MIN POS. MIN POS. SETPOINT SETPOINT 0-50% 0-...
Page 49 - Test procedures; Power-up initialization
Operation 49 RT-SVX19A-E4 Test procedures Operating checklist before start-up• Unit is level, with sufficient clearance all round • Duct network is correctly sized according to the unitconfiguration, insulated, andwater-tight • Condensate drainage line is correctly sized, equipped with atrap, and sl...
Page 50 - Test modes
Operation RT-SVX19A-E4 50 Test modes There are 2 methods in which the"Test" mode can be cycled with thetest button: 1. Step Test ModeThis method initiates the differentcomponents of the unit, one at atime, by temporarily shorting acrossthe two test terminals for two tothree seconds. For the ...
Page 51 - Figure 23 - Gas valve
Operation 51 RT-SVX19A-E4 Unit start-up Verification of gas valve settings -(Reserved for the qualified gastechnician) WARNING! Improper gas valvesetting may lead to burnerdestruction and people injury. Note: Unit factory-set for G20. Figure 23 - Gas valve 1 = Negative pressure controller2 = Safety ...
Page 52 - Table 38 - Gas burner data
Operation RT-SVX19A-E4 52 Table 37 - Marking category of the gas section in different countries Table 38 - Gas burner data Country FR CH+ES-GB-IE-PT IT NL BE LU-DE AT-DK-Fl-SE Category II2E+3P II2H3P II2H3+ II2L3P I2E+ & I3P I2E & I3P I2H Type of gas Pressure in mbar G20 20 20 20 - 20 20 20 ...
Page 53 - Starting the unit in cooling mode
Operation 53 RT-SVX19A-E4 Starting the unit in cooling mode Before start-up, ensure that allpower cables are tightened. Verify that the unit airflow rate isadjusted according to theinformation provided in the "Supplyfan adjustment" section of thismanual. To start the unit in cooling mode:• P...
Page 54 - Evaporator Fan Operation
Operation RT-SVX19A-E4 54 ReliaTel™ is a microelectroniccontrol feature, which providesoperating functions that aresignificantly different fromconventional electro-mechanicalunits. The master module is theReliaTel™ Refrigeration Module(RTRM). The RTRM provides compressorantishort cycle timing functi...
Page 55 - Low Ambient Operation
Operation 55 RT-SVX19A-E4 Low Ambient Operation During low ambient operation,outside air temperature below 13ºC,the RTRM will cycle the compressorand outdoor fan motor "Off" forapproximately three minutes afterevery 10 minutes of accumulatedcompressor run time. The supplyfan motor (IDM) will...
Page 56 - Ignition Module; Allowing the ignition control; Table 39 - Potentiometer Setting
Economizer Set-Up Adjusting the minimum positionpotentiometer located on the uniteconomizer Actuator (ECA) sets therequired amount of ventilation air. Two of the three methods fordetermining the suitability of theoutside air can be selected utilizingthe enthalpy potentiometer on theECA, as described...
Page 57 - Final installation checklist; Diagnostics
Final installation checklist • Is the condenser fan and indoor blower operating correctly, i.e.:correct rotation and withoutundue noise? • Are the compressors operating correctly and has the systemcharge been checked? • Has the gas module been installed as per the procedure inthis manual? • Have the...
Page 58 - Maintenance; Air filters; Table 41 - Refrigerant charge
Maintenance RT-SVX19A-E4 58 To keep the unit operating safelyand efficiently, the manufacturerrecommends that a qualified servicetechnician check the entire systemat least once each year, or morefrequently if conditions warrant it. End user routinemaintenance Some of the periodic maintenancefunction...
Page 59 - Condenser coil
Note: Do not attempt to cleandisposable filters. Permanent filterscan be cleaned by washing with amild detergent and water. Ensurethat the filters are thoroughly drybefore reinstalling them in the unit(or duct system). Note: Replace permanent filtersannually if washing fails to cleanthem, or they sh...
Page 60 - Troubleshooting; Step the system through all of
System Status Checkout Procedure "System Status" is checked by usingone of the following two methods: Method 1 If the Zone Sensor Module (ZSM) isequipped with a remote panel withLED status indication, you can checkthe unit within the space. If the ZSMdoes not have LED's, use Method 2. THS/P0...
Page 62 - Service Failure; Cooling Failures and Ignition; Method 1
Zone Temperature Sensor (ZTS)Service Indicator The ZSM SERVICE LED is a genericindicator that will signal the closingof a Normally Open switch at anytime, providing the Indoor Motor(IDM) is operating. This indicator isusually used to indicate a cloggedfilter, or an air side fan failure. The RTRM wil...
Page 63 - Temperature
Maintenance 63 RT-SVX19A-E4 Zone Temperature Sensor (ZTS) Test Note:These procedures are not forprogrammable or digital modelsand are conducted with the ZoneSensor Module electrically removed fromthe system. Test 1 Zone Temperature Thermistor(ZTEMP) This component is tested bymeasuring the resistanc...
