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Trane RT-SVX19A-E4 User's Manual

1. EU2 G2 EU4 G4 UNIT Oty Size Qty Size 2 508x508x50 2 498x498x40 YKH YKD 155 4 508x635x50 4 500x625x50 2 508x508x50 2 498x498x40 YKH YKD 175 4 508x635x50 4 500x625x50 YKH 200 8 508x635x50 8 500x625x50 4 508x508x50 4 498x498x40 YKD 200 508 50 498 498 4 508 635 50 4 500 625 50 250 8 508 635 50 8 500 625 50 4 508 508 50 4 498 498 40 YKD 250 4 508x635x50 4 500x625x50 2 508x508x50 2 498x498x40 TKH TKD 155 4 508x635x50 4 500x625x50 2 508x508x50 2 498x498x40 TKH TKD 175 4 508x635x50 4 500x625x50 TKH 200 8 508x635x50 8 500x625x50 4 508x508x50 4 498x498x40 TKD 200 4 508x635x50 4 500x625x50 TKH 250 8 508x635x50 8 500x625x50 4 508 508 50 4 498 498 40 250 4 508 635 50 4 500 625 50 2 508 508 50 2 498 498 40 WKH WKD 125 4 508x635x50 4 500x625x50 2 508x508x50 2 498x498x40 WKH WKD 155 4 508x635x50 4 500x625x50 WKH 200 8 508x635x50 8 500x625x50 4 508x508x50 4 498x498x40 WKD 200 4 508x635x50 4 500x625x50 RT SVX19A E4 e TRANE Installation Supply fan adjustment b Add static pressure drop of the 2 Using the Tables 10 through 20 to accessories installed on the find the external static pressure Use the following procedure to unit Table 7 8 amp 9 that most closely approximates determine the proper adjustment of c Add the total accessor
2. While setting the minimum position the damper may move toward the new setting in several small steps Once the damper has remained in the same position for 10 to 15 seconds it can be assumed it is in the new position 47 48 TRANE Operation Figure 22 Minimum fresh air adjustment POWER EXHAUST races E CONTACTS INPUT MIXED AIR SENSORay INPUT COMMON 8 RE 8 82 amp 2 10 VDC 4 CONTROL _ E COMMON OUTPUT OHS INPUT NOT USED OAT IS 1 CONNECTED TO 2 MIN POS SETPOINTT RA INPUT 1 0 50 COMMON 2 Green ABCD LED COMMON 1 SETTINGS RHS INPU 2 CO2 PURGE SENSOR INPU 1 SETPOINT COMMON 2 ADJUSTMENT 500 1500 PPM MODBUS COMMON 24VAC 4321 SHORTED CLOSED OPEN ON CARD POT 270 omega 50 POTENTIOMETER 1 ECA board RT SVX19A E4 Test procedures Operating checklist before start up e Unit is level with sufficient clearance all round e Duct network is correctly sized according to the unit configuration insulated and water tight e Condensate drainage line is correctly sized equipped with a trap and sloped e Filters are in position of correct size and quantity and clean e Wiring is correctly sized and connected in accordance with wiring diagrams e Power supply lines are protected by recommended fuses and correctly earthed e Thermostat is correctly wir
3. 14 7 15 3 15 3 Locked rotor Amps 2 A 118 65 5 118 101 118 118 118 118 Outdoor Fan ominal Airflow m3 h 15350 19750 21000 23500 Type Axial Axial Axial Axial Diameter mm 660 660 710 710 Drive type Direct Direct Direct Direct umber Voltage 2 2 2 2 otor HP kW 0 25 0 25 0 56 0 56 otor Rated Amps 1 A 1 6 1 6 2 3 2 3 otor Locked rotor Amps 2 A 3 8 3 8 5 8 5 8 otor RPM rpm 925 925 925 925 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 TKD H TKD H TKD H TKD H 155 175 200 250 Compressor Number 2 2 2 2 Type Scroll Scroll Scroll Scroll Model OT 5T 10T 6 7T 9T 9T 10T 10T Rated Amps 1 A 15 0 8 5 15 1 11 4 14 7 14 7 15 3 15 3 Locked rotor Amps 2 A 118 65 5 118 101 118 118 118 118 Outdoor Fan ominal Airflow m3 h 15350 19750 21000 23500 Type Axial Axial Axial Axial Diameter mm 660 660 710 710 Drive type Direct Direct Direct Direct umber 2 2 2 2 otor HP kW 0 25 0 25 0 56 0 56 otor Rated Amps 1 A 1 6 1 6 2 3 2 3 otor Locked rotor Amps 2 A 3 8 3 8 5 8 5 8 otor RPM rpm 925 925 925 925 1 At Eurovent rating conditions Indoor return Air 27 C DB 19 C WB Ambiant 35 C 2 per motor 28 RT SVX19A E4 Installation Table 24 Electrical data WKD WKH Compressor motor and condens
4. ON Q U RT SVX19A E4 Contents e TRANE Unit Options Hot water coil Electric Heater Soft Starter 0 25 fresh air hood Barometric relief Operation Operation with a conventional thermostat Setting the economizer Test procedures Test modes Unit start up Cooling without an Economizer Low Ambient Operation Cooling with an Economizer Economizer Set Up ReliaTel Control Heating Operation Ignition Module Final installation checklist Maintenance End user routine maintenance Service technician maintenance Troubleshooting 40 40 41 41 42 43 44 44 47 49 50 51 54 55 55 56 56 56 57 58 58 59 60 TRANE Installation General information The installation must conform to all local standards and regulations Reception of units Rooftop unit The unit is supplied on a wooden frame It is recommended to check the machine s condition upon reception Figure 1a Unit handling 1 Clevis 2 Base Rail 3 Spreader Bar L Length Center of Gravity W Width Center of Gravity Refer to Table 2 for weights and center of gravity There are two ways to handle the unit 1 Use the openings in the wooden frame to handle the machine using a fork lift in accordance with applicable safety regulations 2 Use a lifting beam correctly adjusted to fit the unit Figure 1a Unit handling The units are supplied on the truck but are not unloaded An opening
5. e Are all covers and panels in placeand properly fastened To keep the unit operating safely and efficiently the manufacturer recommends that a qualified service technician check the entire system at least once each year or more frequently if conditions warrant Diagnostics Green LED Red LED 1 Powered but no heat dernand Off Off 2 Heat demand without fault Flash ing Off 3 No flame detection on ignition or signal detected Off Flashing and then lost 4 Gas unit incorrectly wired or flame signal detected on Steady Flashing a heat demand 5 Internal fault Off Steady 57 TRANE 58 Maintenance To keep the unit operating safely and efficiently the manufacturer recommends that a qualified service technician check the entire system at least once each year or more frequently if conditions warrant it Table 41 Refrigerant charge End user routine maintenance Some of the periodic maintenance functions for the unit can be undertaken by the end user This includes replacing disposable or cleaning permanent air filters cleaning unit cabinet cleaning the condenser coil and carrying out a general unit inspection on a regular basis WARNING Disconnect the power supply before removing access panels to service the unit Failure to disconnect power before attempting any servicing can result in severe injury or death Air filters It is very important for the central duct system
6. 4239070 cy G THPO2 Y1 v 4240530 2 4 Y2 R R sr 3 7 RTRM Wig wi wa w2 THS01 G4 G 4239060 kil 4 vi THPO1 ya 2 4240520 R R PI a EN Trane THS01 THS02 THPO1 and THPO2 Thermostats are directly connected to RTRM board J7 connector TRANE THS02 and THP03 thermostats are directly connected to RTRM board J6 connector Install the electrical link between the thermostat thermostat terminal strip and the unit J6 or J7 connector in compliance with the interconnection diagram The low voltage wiring must not be laid in the same pipes as the power cables The sizes and lengths of the thermostat connection wires are given in Table 29 The total resistance of these control cables must not exceed 5 ohms If the resistance exceeds this value the thermostat may not operate with the same precision Table 29 Zone sensor wire size and maximum length Maximum length Zone sensor wire size Wire Maximum size wire lengh mm m THS THP 03 0 33 45 0 5 76 0 75 115 13 185 2 300 Conventionnal 0 33 10 thermostat 0 5 15 THS THP 01 02 0 75 23 13 37 2 60 31 TRANE 32 Controls Unit controlled by BAS Each unit must be equipped with a TCI R board A communication bus twisted shielded pair must link each TCI R to the Trane Roof Top Manager RTM or to the communication gateway in the case of an external BAS Connect one temperature sensor to e
7. e Has the indoor airflow been checked and adjusted if necessary e Has the unit been checked for tubing and sheet metal rattles or any unusual noises e Are all covers and panels in place and properly fastened 53 TRANE ReliaTel is a microelectronic control feature which provides operating functions that are significantly different from conventional electro mechanical units The master module is the ReliaTel Refrigeration Module RTRM The RTRM provides compressor antishort cycle timing functions through minimum Off and On timing to increase reliability performance and to maximize unit efficiency Upon power initialization the RTRM performs self diagnostic checks to insure that all internal controls are functioning It checks the configuration parameters against the components connected to the system The LED located on the RTRM module is turned On within one second after power up if all internal operations are okay 54 Operation Cooling without an Economizer When the system switch is set to the Cool position and the zone temperature rises above the cooling setpoint controlband the RTRM energizes the K9 relay coil located on the RTRM When the K9 relay contacts close the compressor contactor CC1 coil is energized provided the low pressure control LPC1 and high pressure control HPC1 are closed When the CC1 contacts close compressor CPR1 and the outdoor fan motor ODM
8. start to maintain the zone temperature to within 2 F of the sensor setpoint at the sensed location If the first stage of cooling can not satisfy the cooling requirement the RTRM energizes the K10 relay coil located on the RTRM When the K10 relay contacts close the compressor contactor CC2 coil is energized provided the low pressure control LPC2 and high pressure control HPC2 are closed When the CC2 contacts close compressor CPR2 starts to maintain the zone temperature to within 2 F of the sensor setpoint at the sensed location Evaporator Fan Operation When the fan selection switch is set to the Auto position the RTRM energizes the K6 relay coil approximately one second after energizing the compressor contactor coil CC1 in the cooling mode In heating mode the RTRM energizes the K6 relay coil approximately 45 seconds after gas ignition Closing the K6 contacts on the RTRM energizes the supply fan relay F coil to start the supply fan motor IDM The RTRM de energizes the fan relay F approximately 60 seconds after the cooling requirement has be satisfied to enhance unit efficiency When the heating cycle is terminated the supply fan relay F coil is de energized approximately 90 seconds after the heating requirement When the fan selection switch is set to the On position the RTRM keeps the supply fan relay coil F energized for continuous fan motor operation When the unit
9. units to communicate on a LonTalk Network at the unit level Network variables are based on the LonMark Space Comfort Controller Functional Profile Template The LCI V uses a Free Topology transceiver FTT 10A The FTT 10A transceiver supports non polarity sensitive free topology wiring allowing the system installer to use star bus and loop architecture The LCI V can also be connected to an optional High Temperature Limit Switch if installed with the rooftop unit For more information see attached manual LTCI IN 1 39 TRANE Figure 18 Hot water coil connections 40 Unit Options Hot water coil Down flow units only In order to prevent water to freeze up in the coil during unoccupied period or shutdown limited period a thermostat opens when there is a risk of freeze up The services of a water treatment specialist are recommended if water used can cause scaling deposits or erosion Insulate all the water piping likely to be exposed to freezing temperatures in order to avoid freeze up of the coil and heat losses The water distribution network must be fitted with vents in places where air is likely to be trapped The hot water coil is factory mounted in the discharge section Two holes are provided to connect the hot water coil They are located at the base of the unit Remove the central panel to access the coil using an 8 mm wrench the bolts are located on the bottom part of the panels Th
10. 105 8 1727 5 89 2 4 2 9 400 500 155 1 5 BK85 210 44 105 BX68 1727 6 2 4 2 9 400 500 175 3 BK130 324 VP44 105 BX75 1905 6 05 2 4 2 9 400 500 200 3 BK160 400 1VL40 95 BX90 2286 6 96 2 4 2 9 400 500 250 4 6 BK190 476 1VP50 121 BX96 2438 6 91 2 4 2 9 400 500 125 3 BK130 324 44 105 BX75 1905 5 85 2 4 2 9 400 500 155 3 BK140 349 VP44 105 77 1955 6 17 2 4 2 9 400 500 175 4 6 BK140 349 1VP56 136 75 1905 5 45 2 4 2 9 400 500 200 4 6 190 476 1VP56 136 BX96 2438 6 87 2 4 2 9 400 500 250 4 6 190 476 1VP56 136 9 2438 6 32 2 4 2 9 400 500 16 RT SVX19A E4 e TRANE Installation Component air pressure drops Table 7 YKD YKH Pressure drop through accessories Filter Filter Economizer Economizer Airflow EU2 G2 4 64 M n Bau 6800 13 27 8 6 7650 16 30 0 7 YKD YKH 155 8500 19 34 12 8 9350 22 37 14 9 10200 26 40 16 10 7870 17 30 0 7 8860 21 34 12 8 YKD YKH 175 9850 25 38 15 9 10840 30 43 7 11 11830 35 47 20 12 8970 12 26 29 6 10090 15 30 37 8 YKD 200 11210 19 33 45 9 12330 23 37 55 11 13450 27 41 65 13 8970 11 23 33 6 10090 14 26 41 8 YKH 200 11210 17 29 51 9 12330 20 33 61 1 13450 23 36 72 13 11280 18 32 46 10 12690 24 36 58 12 YKD 250 14100 29 41 71 14 15510 36 46 86 17 16920 43 51 102 19 11280 17 30 52 10 12690 21 34 65 12 YKH 250 14100 26 38 80 14 155
11. 52 TANS SZ os OT STE IP ooo 52 1965522 02 298 4 E 2 G7EEOSONEP 268 S755 8500 7022225207320 773522 50082 15 92 55 9350 10200 Standard drive Oversized drive 20 RT SVX19A E4 e TRANE Installation Table 11 YK 175 External static pressure External Static Pressure Pa 25 50 75 100 125 150 175 200 225 250 m3 h RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW 7870 726 1 58 748 1 66 770 1 74 791 1 83 813 1 92 835 2 02 8860 751 196 772 2 05 792 2 13 811 2 22 831 2 31 850 24 869 25 888 2 6 9850 779 241 801 2 52 822 2 62 1 2 722790 10840 A I a MM A O25 I a I 8 89 99D OO OO a 11830 926 4 12 946 4 25 External Static Pressure Pa 275 300 325 350 375 400 425 450 475 500 m3 h RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW 7870 857 2 12 879 2 22 900 2 33 921 2 44 942 2 55 962 2 65 981 2 75 1000 2 86 1018 2 96 1036 3 06 8860 sr 2 GI ABI SYN Cols COS Ea SL 9850 964 3 42 981 3 53 998 3 64 1016 3 76 1033 3 88 10840 1024 4 29 11830 Standard drive Oversized drive Table 12 YK 200 External static pressure External Static Pressure Pa 25 50 75 100 125 150 175 200 225 250 m3 h RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW 8970 530 1 5 55
12. C Humidity range TL Airflow range 0 10 m s jumper 0 10Vde orn of analog 10 ppm CO2 Recomrnended external Current output load max 500 Voltage output min 1000 Power supply Nominal 24Vac Power consumption lt 5 VA Warm up time 15 minutes Dimensions mm 108 x 80 x 36 80 x 80 x 200 33 TRANE 34 Controls Power supply requirements CAUTION Make sure that you connect the power wire only to the Wiring the duct mounted CO2 sensor 1 Connect the DCV signal lwire to 24V terminal Connecting the power the connector DCV of the ECA wire to the output terminal may result in equipment damage The CO2 sensor is designed to operate with a nominal 24 Vac supply The power supply should maintain the voltage between 20 to 26 Vac Table 31 CO2 sensor wire size Cross Maximum wire section length mm2 mn 0 25 50 0 5 100 1 200 Wiring the wall mounted CO2 sensor DVC setpoint potentiometer on economizer module can be adjusted as follows 096 500ppm 5096 1000 ppm 10096 1500ppm The outside air damper will modulate from minimum position setting to up to 100 while attempting to maintain the CO2 setpoint To connect the wall mounted CO2 sensor Refer to the wiring diagram provided in the unit Figure 12 Jumper settings 24V GND OUT 2 Connect the power according to the guidelines in Power supply requirements To connect the wall
13. This option is typically installed when fresh air intake is below 2596 of the nominal air flow and when the return air pressure drop is below 25Pa Figure 21 Economizer flow chart with barometric relief This option includes exhaust hoods and gravity dampers located in the return air section Figure 22 When the pressure of the building increase the gravity dampers open and relieve air to the outside If the return air duct pressure drop is higher than the building overpressure the gravity dampers will not open If the return air duct pressure drop is lower than the building overpressure the gravity dampers will open and releive air outside of the building R return S supply F fresh air E exhaust RT SVX19A E4 Downflow version Horizontal flow version 43 TRANE Operation with a conventional thermostat The ReliaTel module has conventional thermostat connections as well as Zone Sensor Module connections When a conventional thermostat is controlling the unit operation differs as follows Supply Air Tempering feature is not available If outdoor air is being introduced through the equipment discharge air temperature may be cold when not actively heating Proportional Integral PI control is not available Zone Sensor Diagnostics are only available on the RTRM module on the J6 terminals instead of at the Zone Sensor in the space Intelligent Fall Back is not available If
14. X X X X for Heat Pump units X X X for Gas Fired units X X X X Cooling stages 2 2 2 2 2 o z z ss de none none 1 1 1 liquid crystal display x X X X some important features are lost while using the CTI card Note thermostats are powered up by the rooftop control 24V 38 RT SVX19A E4 RT SVX19A E4 Controls e TRANE Other accessories available Remote temperature sensor to be used with THS THP 01 02 TZS01 Remote room temperature sensor to be used with THS THP 03 Tracker or Varitrac systems DTS Duct temperature sensor to be used with THS THP 03 TZS02 Remote room temperature sensor with adjustable thumwheel setpoint to be used with Tracker or Varitrac systems TZS04 Room temperature sensor with adjustable thumbwheel and override button to be used with Tracker or Varitrac systems Refer to separate documentation for more information Communication Interfaces TRANE Communication Interface TCI R board This is an electronic board factory mounted in the main control panel needed to allow communication between a TRANE Integrated Comfort system TRACKER or Varitrac CCP2 and the unit COM3 COM4 LON Communication Interface LCI R board This is an electronic board factory mounted in the main control panel needed to allow communication on a LonTalk Network at the unit level LonTalk Communication Interface LCI R board This interface board allows Voyager
15. air filters to be kept clean These should be inspected at least once a month when the system is in constant operation in new buildings the filters should be checked every week for the first four weeks If disposable type filters are used they should only be replaced with ones of the same type and size Unit model and size Number of circuits Refrigerant charge kg R22 R407C YSD YSH 060 1 3 5 YSD YSH 072 1 3 7 YSD YSH 090 1 4 5 YSD YSH 102 2 3 7 2 1 YSD YSH 120 2 3 5 3 0 Note Refrigerant charges are given for information only Check unit nameplate for exact values RT SVX19A E4 RT SVX19A E4 Maintenance e TRANE Note Do not attempt to clean disposable filters Permanent filters can be cleaned by washing with a mild detergent and water Ensure that the filters are thoroughly dry before reinstalling them in the unit or duct system Note Replace permanent filters annually if washing fails to clean them or they show signs of deterioration Be sure to use the same type and size as were originally installed Condenser coil Unfiltered air circulates through the unit s condenser coil and can cause the coil s surface to become clogged with dust dirt etc To clean the coil brush the coil surface in the direction of the fins with a soft bristled brush Keep all vegetation away from the condenser coil area Hot water coil option Stop the unit Do not disconnect the m
16. detect smoke in the air stream It includes a factory mounted detector connected to a central panel both fitted in the fan section When smoke is detected it shuts off the unit A dry contact is available on the control panel for a remote default Table 32 Thermostats features Controls High temperature safety thermostat This additional safety device is a manual reset thermostat for gas fired units YKD YKH required mainly by the French ERP regulation It is located in the gas burner section It stops the gas burner and the supply air fan when the supply air temperature rises to 120 C Remote fault relay This is a factory mounted relay used to send alarm signals dry contact to a local BMS or a local control panel With this relay the compressor heating fan and power supply alarm output signals from the controller are reported to a single dry contact Thermostats 6 thermostats are available THS01 THPO1 THSO2 THP02 and THSOS THPOS3 THS are non programmable thermostats THP are programmable 01 and 02 series are conventional thermostat 03 series are dedicated to the controller THS01 THP01 THS02 THPO2 THS03 THPO3 non programmable X X X programmable X X electronic X X X X X unit control type design electromech electromech electromech electromech Reliatel Reliatel interface card needed CTI CTI CTI CTI none none for Cooling Only units
17. is the complete listing of failure indication causes System failure Check the voltage between terminals 6 and 9 on J6 it should read approximately 32 VDC If no voltage is present a system failure has occurred Refer to Step 4 in the previous section for the recommended troubleshooting procedure Heating Failure Verify Heat Failure by Ignition Module IGN LED indicator OFF No Power or Failure ON Normal Slow Flash Normal Heat Call Fast Flash Error Code Flash Communication Failure Flashes System Lockout Flashes Pressure Switch Fail Flashes TC01 or TCO2 Open Flashes Flame w o Gas Valve Flashes Flame Rollout Open O Ol RT SVX19A E4 Maintenance e TRANE Cooling Failure 1 Cooling and heating set point slide pot on the zone sensor has failed Refer to the Zone Sensor Test Procedure section 2 Zone temperature thermistor ZTEMP on ZTS failed Refer to the Zone Sensor Test Procedure section 3 CC1 or CC2 24 VAC control circuit has opened check CC1 amp CC2 coils and any of the controls below that apply to the unit HPC1 HPC2 4 LPC1 has opened during the 3 minute minimum on time during 4 consecutive compressor starts check LPC1 or LPC2 by testing voltage between the J1 8 amp J3 2 terminals on the RTRM and ground If 24 VAC is present the LPC s has not tripped If no voltage is present LPC s has tripped Service Failure 1 If the supply fan proving switch ha
18. line valves Note To bypass time delays and verify the operation of this unit from the roof use the Test procedure section in this manual Check the suction and discharge pressures Note Always route refrigerant hoses through the port hole provided and ensure that the compressor access panel is in place Cooling shutdown To exit the test mode disconnect unit power for 3 5 seconds and reapply When running the unit using the zone sensor as the control position the selector switch to OFF There may be a delay of up to 3 minutes before compressors shut down and an additional one minute before the fan shuts down in this setting Do not de energize main power disconnect except when unit is to be serviced Power is required to keep the compressor crankcase warm and boil off refrigerant in the oil except on units with Scroll compressors Final installation checklist Are all power cables tightened Check torque of power cables contact e 5 the condenser fan and indoor blower operating correctly i e correct rotation and without undue noise e Are the compressors operating correctly and has the system been checked for leaks e Have the voltage and running currents been checked to determine if they are within limits Have the air discharge grilles been adjusted to balance the system e Has the ductwork been checked for air leaks and any condensation e Has the air temperature rise been checked
19. on the joint beam of the building s structure Make the rooftop curb s sealing surface level using angle brackets adjusted by screw bolts located around its perimeter Place the adhesive seals on the curb s sealing surface perimeter and cross pieces Make the rooftop leak tight around the curbs before installing the unit in compliance with current construction standards Note The unit must be installed perfectly level to ensure condensates flow from the condensate tray The rooftop unit nests into the curb and is supported by it Position the unit taking care to comply with the indicated directions the unit s discharge and intake openings must match those of the curb 2 Installing the unit on the ground To install the unit on the ground its base must be level and supported securely For horizontal discharge units a support is required such as a metal or concrete slab whose height must be determined according to the amount of snow cover to prevent problems with condensation drainage and obstruction of the external coil If necessary use an anti vibration material between the rooftop unit s base and the support Note Unit installation must comply to local codes RT SVX19A E4 RT SVX19A E4 Installation e TRANE Connection of duct network 1 Downflow discharge units TKD WKD YKD Using the rooftop curb The rooftop curb must be insulated on the outside walls at the discharge and intake open
20. return air heater Downflow only 5720 9 21 6 5 4 37 6430 11 24 7 6 6 45 WKD WKH 125 7140 14 27 9 6 7 53 7850 17 30 10 7 9 62 8560 20 33 12 8 12 72 6800 13 27 8 6 7 33 7650 16 30 10 7 9 40 WKD WKH 155 8500 19 34 12 8 11 48 9350 22 37 14 9 13 56 0200 26 40 16 10 16 65 8970 12 26 29 6 13 33 0090 15 30 37 8 17 40 WKD 200 11210 19 33 45 9 21 48 2330 23 37 55 11 25 56 3450 27 41 65 13 30 65 8970 11 23 33 6 13 0090 14 26 41 8 17 WKH 200 11210 17 29 51 9 21 2330 20 33 61 11 25 3450 23 36 72 13 30 RT SVX19A E4 19 TRANE Installation Supply fan performances Table 10 YK 155 External static pressure External Static Pressure Pa 2b 50 75 100 125 150 175 200 225 250 m3 h RPM kW RPM kW RPM kW RPM KW RPM kW RPM KW RPM kW RPM KW RPM kW RPM kW 6800 564 1 587 107 610 1 15 633 123 655 131 677 139 7650 560 1 14 583 1 23 605 1 31 627 139 648 1 48 669 1 56 690 165 710 1 74 8500 559 131 584 1 41 606 15 628 16 649 1 60 669 1 78 689 187 708 1 97 727 2 06 746 2 16 9350 610 172 633 1 83 654 194 675 2 04 694 2 14 713 2 24 732 2 34 750 2 45 767 2 55 785 2 65 10200 pol eis 2s oles 205 020020 25 External Static Pressure Pa 275 300 325 350 375 400 425 450 475 500 m3 h RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW 6800 699 147 719 1 55 739 1 68 758 171 777 179 795 186 813 194 830 201 847 2 09 863 2 16 7650 YES 81
21. they are properly installed where indicated to assure an adequate curb to unit seal Instructions for the roof curb assembly and installation with curb dimensions are provided with each roof curb kit TRANE Installation Dimensions Weights Clearances Figure 3 Minimum clearances IC Table 2 Minimum clearances mm Minimum clearance UNIT 1 2 3 4 5 YKD YKH 155 1900 1800 220 1000 300 YKD YKH 175 1900 1800 1220 1000 300 YKD YKH 200 1900 1800 220 1000 300 YKD YKH 250 1900 1800 220 1000 300 TKD TKH 155 1900 1800 1220 1000 300 TKD TKH 175 1900 1800 220 1000 300 TKD TKH 200 1900 1800 220 1000 300 KD TKH 250 1900 1800 220 1000 300 WKD WKH 125 1900 1800 1220 1000 300 WKD WKH 155 1900 1800 220 1000 300 WKD WKH 200 1900 1800 220 1000 300 The structure accommodating the unit s must be designed to support the equipment in operation as a minimum Refer to Table 3a and the space requirement plan RT SVX19A E4 e TRANE Installation Table 3a Weigths amp center of gravity Figure 1 Maximum weight Corner Weight 1 Center of Gravity Shipping Net A B G D Length L Width W UNIT kg kg kg kg kg kg mm mm YKD YKH 155 866 698 243 176 118 162 143 737 YKD YKH 175 902 735 251 188 127 169 168 737 YKD YKH 200 1128 920 324 242 151 203 321 838 YKD YKH 250 1154 946 327 251 159 208 346 838 TKD TKH 155 790 623 219 159 103 142 143 711 TKD TKH 175 827 660
22. 1 1 61 572 174 593 187 614 2 10090 529 1 71 548 1 83 567 1 94 586 2 06 604 2 18 623 231 641 245 11210 530 1 99 551 2 12 570 2 24 588 2 36 606 2 48 623 2 61 640 2 74 657 2 87 673 3 01 12330 548 2 41 573 2 58 594 2 73 613 2 87 630 3 646 313 662 3 27 678 34 693 354 709 3 69 13450 ss Si a SL 9 699 9 9740 da SOT 672657686386 I 0 E230 S li E External Static Pressure Pa 275 300 325 350 375 400 425 450 475 500 m3 h RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW 8970 633 2 14 652 2 27 670 24 688 2 54 705 267 721 28 737 293 753 3 06 768 3 19 783 3 31 10090 0008762067999 95256970 Zs il Gols A A Sisk eis MM 99 MEOS Gis 808 5965 11210 690 3 16 707 3 31 724 3 47 741 364 757 3 81 773 3 98 789 4 14 804 4 31 12330 724 3 84 739 3 99 754 4 15 770 4 31 13450 Standard drive Oversized drive RT SVX19A E4 21 TRANE Installation Table 13 YK 250 External static pressure External Static Pressure Pa 25 50 75 100 125 150 175 200 225 250 m3 h RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW 9870 606 162 625 1 72 643 1 82 11280 603 1 88 620 1 97 637 2 07 653 2 17 670 2 27 686 2 37 12690 602 2 18 622 2 30 640 2 41 657 2 52 673 2 63 688 2 74 704 285 719 2 96 733 3 08 14100 639 2 77 660 2 92 679 3 06 696 3 19 712 3 32 727 344 742 356 756 3 68 770 3 80 784 3 92 15510 699 3 65 719 3 82 736 3
23. 10 31 43 96 17 16920 36 47 114 19 RT SVX19A E4 17 TRANE Installation e Table 8 TKD TKH Pressure drop through accessories Filter Filter Economizer Economizer Electric Hot water coil Airflow EU2 G2 EU4 G4 E um Bacca heater Downflow only 6800 13 27 8 6 7 33 7650 16 30 10 7 9 40 TKD TKH 155 8500 19 34 12 8 11 48 9350 22 37 14 9 3 56 10200 26 40 16 10 6 65 7870 17 30 10 7 10 42 8860 21 34 12 8 3 51 TKD TKH 175 9850 25 38 15 9 6 61 10840 30 43 17 11 9 72 11830 35 47 20 12 23 83 8970 2 26 29 6 3 33 10090 5 30 37 8 17 40 TKD 200 11210 9 33 45 9 21 48 12330 23 37 55 11 25 56 13450 27 41 65 13 30 65 8970 11 23 33 13 10090 4 26 41 8 17 200 11210 7 29 51 9 21 12330 20 33 61 11 25 13450 23 36 72 13 30 11280 18 32 46 0 20 49 12690 24 36 58 12 25 59 TKD 250 14100 29 41 71 14 32 71 15510 36 46 86 17 38 82 16920 43 51 102 19 46 95 11280 17 30 52 0 19 12690 21 34 65 12 24 TKH 250 14100 26 38 80 14 29 15510 31 43 96 17 35 16920 36 47 114 19 42 18 RT SVX19A E4 Installation Table 9 WKD WKH Pressure drop through accessories e TRANE Economizer Economizer Filter Filter 100 100 Electric Hot water coil Airflow EU2 G2 EU4 G4 outside air
24. 19A E4 Controls e TRANE Fire thermostat There are two sensors in the fire thermostat Kit Sensor X13100040 01 is factory set to open at 57 C Sensor X13100040 02 is set to open at 115 C Sensors are mounted directly in the ductwork They should be installed where elements can respond quickly to air temperature changes If not possible the sensor may be installed on a suitable bracket so the air is drawn across the element Sensor X13100040 01 has to be mounted in the return air duct Sensor X13100040 02 has to be mounted in the supply air duct Figure 17 Duct mounting of fire thermostat 1 T Note Do not permit element guard to touch internal parts Do not locate sensor where the air circulation is restricted by baffles Connection of the fire thermostat with TCI board Refer to the wiring diagram provided in the unit Connection without TCI board Connect according to the standard wiring diagram provided on the unit Remove sensor cover and fasten control securely with screws Loads connected must not exceed 2 amps 30V Ac 59 1 Fire thermostat 2 Hole in the duct 95 37 TRANE Clogged filter detector This device is mounted in the filter section The sensor measures the difference in pressure before and after the filter section The information is sent to the THPO3 thermostat to a Tracker or to a BMS Smoke detector This device is used to
25. 227 172 112 149 168 711 TKD TKH 200 1050 841 297 221 138 185 321 838 TKD TKH 250 1075 866 300 230 145 206 346 838 WKD WKH 125 792 625 218 159 105 144 143 711 WKD WKH 155 809 642 228 162 105 147 143 711 WKD WKH 200 1080 871 291 226 155 199 346 889 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 amp accessories Motorized Standard Roof Adjustable Roof Manual Outside Outside Air UNIT Curb Curb Economizer Air Damper Damper Electric heater Hot water coil YKD 155 93 220 30 5 27 YKD 175 93 220 30 5 27 YKD 200 107 260 37 5 34 YKD 250 107 260 37 5 34 YKH 155 30 5 27 YKH 175 30 5 27 YKH 200 37 5 34 YKH 250 37 5 34 TKD 155 93 220 30 5 27 4 85 TKD 175 93 220 30 5 27 4 85 TKD 200 107 260 37 5 34 8 110 TKD 250 107 260 37 5 34 8 110 TKH 155 30 5 27 4 TKH 175 30 5 27 4 TKH 200 37 5 34 8 TKH 250 37 5 34 8 WKD 125 93 180 20 5 27 18 85 WKD 155 93 220 30 5 27 8 85 WKD 200 107 260 37 5 34 8 110 WKH 125 20 5 27 8 WKH 155 30 5 27 8 WKH 200 37 5 34 8 Notes Net weight should be added to unit weight when ordering factory installed accessories To estimate shipping weight add 2 3 kg to net weight RT SVX19A E4 9 TRANE Installation Figure 4 1 Frame Figure 5 1 Concrete slab 10 RT SVX19A E4 Installing the unit 1 Unit mounting on roof Fix the rooftop curb
26. 23 699 132 727 141 755 151 782 161 809 171 External Static Pressure Pa 275 300 325 350 375 400 425 450 475 500 m3 h RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW 5720 yu IOS 02 Lil 80 i124 By ike ea 14 See de Ses Wee Sey ue 6430 isle L2 ela eS 142 eyi IS I 22 2 SA7 IEA 7140 SOOM a 929 a 657 o eka e Su eeo e Cao s 7850 BG ise B44 Ly 72 2 leis el ewe 20s SEO A 8560 335 180 852 1 Biss 205 Gils 216 GES 28 Standard drive Oversized drive 24 RT SVX19A E4 Installation e TRANE Table 19 WK 155 External static pressure External Static Pressure Pa 25 50 75 100 125 150 175 200 225 250 m3 h RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW 6800 566 0 7 599 0 77 632 0 85 664 0 93 696 1 02 727 1 11 757 12 7650 571 0 82 604 09 634 0 99 664 1 07 694 1 16 723 1 25 751 134 779 144 8500 5 8 0 95 612 1 05 644 1 15 673 1 25 700 134 727 143 754 153 780 1 68 806 1 73 9350 586 1 09 622 1 22 655 133 685 144 712 1 55 739 165 764 1 75 788 186 813 196 837 2 07 10200 633 139 667 153 698 166 726 178 753 19 778 2 02 803 2 13 826 2 24 848 2 35 871 247 External Static Pressure Pa 275 300 325 350 375 400 425 450 475 500 m3 h RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM
27. 657 19 679 2 02 700 2 13 720 2 24 739 2 35 12690 599 18 628 1 97 655 2 15 681 2 31 704 2 47 726 2 62 747 2 76 766 2 89 785 3 02 14100 631 2 2 654 2 38 679 2 57 705 2 76 729 2 96 752 3 14 774 3 32 795 3 49 814 365 832 3 8 15510 690 2 9 711 3 08 733 3 28 756 35 779 3 71 801 393 822 413 842 433 16920 749 3 73 768 3 92 788 4 14 809 4 36 External Static Pressure Pa 275 300 325 350 375 400 425 450 475 500 m3 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 02 769 2 1 786 2 17 802 225 818 2 32 834 239 849 246 864 2 53 11280 Vou Ahs Wa 255 IE APS GO ATA AI SAN SAS MISSIR So Sill BEE SIS SAS 12690 8038314820 S 261 8873 398m5 Sol SS5 572590 3836 9981 9815 4104 14100 850 3 95 866 4 09 883 4 23 898 4 37 15510 16920 Standard drive Oversized drive Table 18 WK 125 External static pressure External Static Pressure Pa 25 50 75 100 125 150 175 200 225 250 m3 h RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW 8970 562 0 55 601 0 63 639 0 71 675 0 8 709 0 89 741 0 98 10090 548 06 584 0 68 620 0 76 655 0 84 690 0 93 723 1 03 755 1 13 11210 544 0 68 578 0 75 611 0 83 644 0 91 676 1 708 109 EET 12330 542 0 77 577 0 85 609 0 93 640 1 01 670 1 1 700 1 19 730 128 759 138 788 148 13450 541 0 85 578 0 96 612 1 05 643 1 14 671 1
28. 791 840 890 939 989 1038 A YKD YKH 200 680 711 742 773 804 835 A YKD YKH 250 690 722 754 786 818 850 A KD TKH 155 672 714 756 798 840 882 A KD TKH 175 791 840 890 939 989 1038 A KD TKH 200 680 711 742 773 804 835 A KD TKH 250 690 722 754 786 818 850 A WKD WKH 125 724 769 815 860 906 951 A WKD WKH 155 513 550 586 623 659 696 A WKD WKH 200 588 619 650 681 712 743 A RT SVX19A E4 15 TRANE Table 6b Belt tensioning Installation To increase airflow Loosen variable sheave set screw and turn sheave clockwise To decrease airflow Loosen variable sheave set screw and turn sheave counter clockwise To increase belt tension Loosen the nut next to the idler sheave that secures the sheave in place With a wrench apply pressure clockwise on the outside nut round headed one until tension desired is reached While holding pressure with the tension nut retighten the nut next to the idler sheave Figure 9 Typical fan motor and sheave assembly A Fan Housing B Terminal Block C Fan Sheave D Plastic Bushing E Belt Tension Adjustment Bolt F Idler Pulley Fan pulle Fan pulle Belt Deflexion Deflexion Belt tensionBelt tension Mi di Motor kW Type I Type se deflexion effort effort mini maxi diam mm diam mm mm mini kg maxi kg N N 125 15 BK90 222 VP44
29. 98 753 4 13 768 4 27 782 440 796 4 54 810 4 67 823 4 81 836 4 94 16920 758 4 70 777 4 89 794 5 06 810 5 23 824 5 39 838 5 54 External Static Pressure Pa 275 300 325 350 375 400 425 450 475 500 m3 h RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW 9870 662 192 681 2 03 HEI INNI SON REP ON OT OOOO ONE s 201 11280 702 2 48 718 2 59 734 2 70 750 2 82 767 2 94 783 3 08 800 3 20 815 3 33 831 3 46 846 3 59 12690 748 3 19 762 3 30 776 3 42 791 3 54 805 3 66 819 3 79 834 3 92 848 4 05 14100 797 4 05 810 4 17 823 4 30 836 4 43 849 4 55 15510 848 5 08 16920 Standard drive Oversized drive Table 14 TK 155 External static pressure External Static Pressure Pa 2b 50 75 100 125 150 175 200 225 250 m3 h RPM kW RPM kW RPM kW RPM KW RPM kW RPM KW RPM kW RPM KW RPM kW RPM kW 6800 565 0 7 599 0 77 633 0 85 665 0 93 697 1 02 728 1 1 758 1 19 7650 571 0 82 603 09 634 0 99 665 107 694 116 723 1 25 752 134 780 144 8500 580 0 97 613 1 07 643 1 16 672 125 700 134 727 143 754 153 781 163 807 1 73 9350 590 1 13 624 1 24 656 1 35 684 146 711 1 55 738 1 65 763 1 75 788 1 86 813 196 838 2 07 10200 637 1 44 670 1 57 699 1 69 727 181 753 192 777 2 02 801 2 13 825 2 24 848 235 871 246 External Static Pressure Pa 275 300 325 350 375 400 425 450 475 500 m3 h RPM kW RPM kW RPM kW RPM kW
30. A as described below 1 Ambient Temperature controlling the economizing cycle by sensing the outside air dry bulb temperature The Table below lists the selectable dry bulb values by potentiometer setting 2 Reference Enthalpy controlling the economizer cycle by sensing the outdoor air humidity The Table below lists the selectable enthalpy values by potentiometer setting If the outside air enthalpy value is less than the selected value the economizer is allowed to operate 56 Operation 3 Comparative Enthalpy By utilizing a humidity sensor and a temperature sensor in both the return air stream and the outdoor air stream the unit control processor RTRM will be able to establish which conditions are best suited for maintaining the zone temperature i e indoor conditions or outdoor conditions The potentiometer located on the ECA is non functional when both the temperature and humidity sensors are installed Table 39 Potentiometer Setting Potentiometer Dry Bulb Enthalpy Setting C KJ kg A 23 63 B 21 58 19 53 D 17 51 Factory Setting ReliaTel Control Heating Operation When the system switch is set to the Heat position and the zone temperature falls below the heating setpoint controlband a heat cycle is initiated when the RTRM communicates ignition information to the Ignition module IGN Ignition Module Two Stage IGN runs self check including
31. NE Installation Condensate drain piping A 42mm PVC condensate drain connection with P trap is provided Follow local codes and standard piping practices when running the drain line Install a trap and be sure to fill with water before starting the unit Pitch the line downward away from the unit to avoid long level horizontal runs Refer to Figure 7 Figure 7 Condensate drain line connection N 1 Static pressure drain pan 2 Panel enclosure 3 42mm PVC drain 4 Cleanout plug 12 RT SVX19A E4 Gas pipework installation The installation must conform to all standards and regulations The gas supply pipework and gas stop valve to be installed near the unit must be sized so as to assure the gas pressure is sufficient at the unit inlet when operating at full load Figure 8 Typical gas supply Pipework Installation e TRANE CAUTION Should the pressure at the unit valve gas inlet be higher than 0 035 bar an expansion valve must be installed The pipework must be self supporting and the final connection to the burner must be made by a flexible pipe Provide a dust protection filter upstream the unit connection 1 Evaporator section 2 Gas burner section 3 Condenser section 4 Gas supply connection RT SVX19A E4 5 Gas supply line 6 8 Gas stop valve Field supplied 7 E
32. RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW 6800 787 128 815 1 37 842 146 868 1 54 7650 808 153 836 163 862 1 4 8500 833 1 83 858 1 93 883 2 04 9350 862 2 18 885 2 29 909 24 10200 894 2 58 Standard drive Oversized drive 22 RT SVX19A E4 e TRANE Installation Table 15 TK 175 External static pressure External Static Pressure Pa 25 50 75 100 125 150 175 200 225 250 m3 h RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW 7870 593 0 95 623 103 651 111 679 1 19 706 1 28 733 137 761 147 788 157 815 1 68 8860 623 1 21 653 131 680 14 706 149 731 1 58 756 167 780 177 805 187 829 197 853 2 08 9850 687 164 714 1 75 739 185 763 1 95 786 2 05 809 2 15 831 2 25 853 2 36 875 247 897 2 58 10840 750 2 16 775 2 28 799 24 821 2 51 843 2 62 864 2 73 884 2 84 905 2 95 925 3 07 945 3 18 11830 OIM 897 280 890 05 891 3 107 0 829 00 3059 58 8 095 708 8 77 SEG SEE External Static Pressure Pa 275 300 325 350 375 400 425 450 475 500 m3 h RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW 7870 842 1 79 869 191 896 2 03 921 2 15 946 2 27 970 239 994 2 51 1016 2 63 1038 2 75 8860 877 2 19 901 2 31 925 2 43 949 2 56 973 269 997 2 83 1020 2 96 1043 3 1 9850 Cis 27 22 Bley 2L GE S07 IMA 32 IY 10840 Ces 38 GE Se 100s SE ws Gets 0277196552 11830 1015 4 02 1033 4 15 Standard dr
33. S TRANE Installation Operation Maintenance Voyager II Rooftop units Cooling only TKD TKH 155 175 200 250 Reversible WKD WKH 125 155 200 Gas Fired YKD YKH 155 175 200 250 R22 R407C Refrigerant RT SVX19A E4 TRANE Foreword These instructions are given as a guide to good practice in the installation start up operation and maintenance by the user of Trane TKD TKH WKD WKH and YKD YKH units They do not contain full service procedures necessary for the continued successful operation of this equipment The services of a qualified technician should be employed through the medium of a maintenance contract with a reputable service company Read this manual thoroughly before unit start up TKD TKH units are designed to operate in cooling mode only with optional auxiliary heat electric heater or hot water coil WKD WKH can operate in cooling mode or heating mode by reversing the refrigeration cycle with or without auxiliary heat YKD YKH units are designed to operate In cooling mode and equipped with a gas fired heating module TKD TKH WKD WKH and YKD YKH units are assembled pressure tested dehydrated charged and run tested before shipment General information 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
34. a failure occurs in the device controlling the equipment operation will cease Heat Pump Smart Recovery and Smart Staging is not available Heat Pump operation becomes more costly unless the generic control being applied can accomplish this 44 Operation Remote Sensing Capabilities are not available on most mechanical thermostats e Space Temperature Averaging capabilities are not available on most mechanical thermostats e 2710 to 50 VAV Conventional thermostat input terminals are inactive e Built in Night Set Back and Unoccupied Functions function differently with a conventional mechanical thermostat A built in algorithm which allows for automatic reset of the discharge air temperature while economizing is not available The terminal strip for attaching the thermostat wires is located on the RTRM module in the control compartment The purpose of each terminal is discussed in the next section Q TIN Q Y2 6 N O y ORIN Customers occasionally require operation with a conventional thermostat rather than a zone sensor In some cases there is a preference for a specific thermostat model and in others there is reluctance to adopt newer technology that may not be as well understood as conventional thermostats In addition non Trane Building Controllers typically provide an interface to HVAC equipment based on a conventional ther
35. ach unit LonTalk communication interface LTCI R board allows ICS communication between a ReliaTel unit and LonTalk communication applications Unit controlled by Tracker supervisor The units must also be equipped with the TCI R communication board One remote sensor is required on each unit for a constant flow volume In the case of a variable flow installation VariTrac these sensors must be installed A twisted shielded pair must be used for the communication link The main functions of the Tracker supervisor are control of setpoints timetable management Programming and display of faults For more details refer to the supervisor documentation RT SVX19A E4 RT SVX19A E4 e TRANE Controls CO2 sensors Wall mounted and duct mounted CO2 sensors Table 30 Specifications Wall mounted Duct mounted Measuring range CO2 0 200 ppm lt 40 ppm CO2 lt 130 ppm CO2 296 of un of reading Accuracy at 25 C 9 included included repeatability sd n repeatability and and calibration Calibratibn uncertainty uncertainty Non linearity lt 1 0 full scale Ternperature dependence 9 o of output 0 3 full scale C O Long term stability seo Tul 5 years Recomrnended 5 years calibration interval Response time 1 minute 0 6396 Operating temperature 15 35 C 5 45 C Storage temperature 20 70
36. ain supply to the unit This will permit the anti frost protection to continue to operate and avoid water to freeze up in the coil Service technician maintenance Before the cooling season your service technician may examine the following areas of your unit Filters for cleaning or replacement Motors and drives system components e Economizer gaskets for replacement if necessary e Condenser coils for cleaning e Safety controls for mechanical cleaning e Electrical components and wiring for replacement and tightening of connections as necessary e Condensate drain for cleaning e Unit duct connections to ensure they are physically sound and sealed to the unit casing e Unit mounting support to ensure that it is sound e The unit to ensure there is no obvious deterioration Before the heating season your service technician may examine the following areas of your unit e The unit to ensure that the condenser coil can receive the required airflow that the condenser fan grille is not obstructed e The control panel wiring to verify that all electrical connections are tight and that wire insulation is intact e Clean burner area verify the gas heat system operates properly 59 TRANE Troubleshooting The RTRM has the ability to provide the service personnel with some unit diagnostics and system status information Before turning the main power disconnect switch Off follow the steps belo
37. ainst abnormally high leaving air temperatures The automatic reset fan fail limit TCO2 located in the upper middle section of the supply fan board protects against abnormally high heat buildup which could occur because of extended cycling of the high limit TCO1 or if the supply fan motor IDM fails to operate Should TCO2 open the RTRM will energize the supply fan relay F in an attempt to start the fan motor The RTRM signals that a heat failure has occurred by flashing the Heat LED on the zone sensor There is a Green LED located in the Ignition Control Module The table below lists the diagnostics and the status of the LED during the various operating states Table 40 LED status Final installation checklist s the condenser fan and indoor blower operating correctly i e correct rotation and without undue noise e Are the compressors operating correctly and has the system charge been checked e Has the gas module been installed as per the procedure in this manual e Have the voltage and running currents been checked to determine if they are with in limits Have the air discharge grilles been adjusted to balance the system e Has the ductwork been checked for air leaks and any condensation e Has the heating air temperature rise been checked e Has the indoor airflow been checked and adjusted if necessary e Has the unit been checked for tubing and sheet metal rattles orany unusual noises
38. ated on the economizer section e The electrical power must be disconnected to set the minimum position and check the economizer e Disconnect the power supply put the thermostat fan selector to ON and the HEAT COOL selector to OFF This puts the damper in the minimum ventilation position e To set the required minimum ventilation air position turn the dial on the ECA clockwise to increase ventilation or anti clockwise to decrease ventilation The damper will open at this setting whenever the fan circuit is powered up e When the arrow on the dial adjustment screw is pointing to 8 o clock the minimum position is roughly 096 When the dial is pointing to 12 o clock it is roughly 2596 and when the dial is pointing to 4 o clock it is roughly 5096 To check the damper is functioning correctly the ECA is equipped with an indicator light in the middle of the board This light operates as in Table 35 Table 35 ECA board LED OFF No Power or Failure ON Normal OK to Economize Slow Flash Normal Not OK to Economize Fast Flash Communications Failure Pulse Flash Error Code 1 Flash Actuator Fault 2 Flashes C02 Sensor 3 Flashes RA Humidity Sensor 4 Flashes RATemp Sensor 5 Flashes Quality Sensor 6 Flashes Humidity Sensor 7 Flashes OATernp Sensor 8 Flashes MATemp Sensor 9 Flashes RAM Fault 10 Flashes ROM Fault 11 Flashes EEPROM Fault
39. ber 1 1 1 Motor HP Standard Oversized kW 2 2 3 0 2213 0 3 0 4 6 Motor Rated Amps Standard Oversized A 4 6 6 5 4 6 6 5 6 5 9 0 Motor Locked rotor Amps Standard Oversized A 36 4 57 36 4 57 57 71 9 Motor RPM Standard Oversized rpm 1450 2870 1450 2870 2870 2900 4 At the nominal airflow with standard drive 5 At the nominal airflow with oversized drive when available Table 28 Electrical data Combustion Blower Motorr YKD H YKD H YKD H YKD H 155 175 200 250 Gas burner Heating Models G350 G350 G350 G350 Heating Input G20 KW 77 a 77 77 Heating Output KW 69 3 69 3 69 3 69 3 Steady State Efficiency 96 90 90 90 90 No Burners 1 1 No Stages 2 2 2 2 Gas Connection Pipe Size 3 4 NPT 3 4 NPT 3 4 NPT 3 4 NPT 30 RT SVX19A E4 RT SVX19A E4 Controls e TRANE Control wiring The control circuit is 24 V AC Unit includes a 400 24 V transformer WARNING The unit disconnect switch must be opened and locked open Risk of injury and electrocution CAUTION The unit 24 V transformer must not be used to power accessories mounted on site other than those proposed by Trane Unit controlled by thermostat Figure 11 Thermostat wiring 8896 du F e Ig u 0 0 Wu wi THS02
40. can use a portable CO2 meter to certify sensor calibration If when checking the sensor the reading differs too much from the reference value the sensor can be recalibrated in the field A calibration kit software and calibration gases are required If certified accuracy is required the sensor must be calibrated against accurate and traceable calibration gases in a laboratory Consult Trane BAS for further details Figure 14 Duct mounted CO2 insertion depth 21 2 in 64 mm 3l a 51 2 80 140mm a 35 TRANE 36 Controls Remote potentiometer Note This potentiometer allows to adjust the permanent fresh air To install the remote potentiometer intake from 0 to 50 cut the jumper WL on the economizer ECA board and connect the wires to P and P1 0 W corresponds to closed fresh air damper 270 W corresponds to 50 open Note This potentiometer allows to fresh air damper adjust the permanent fresh air intake from 0 to 50 W corresponds to closed fresh air damper 270 W corresponds to 5096 open fresh air damper Figure 15 Remote potentiometer dimensions lt 36 19 Im 3 114 Figure 16 Remote potentiometer wiring WL WH P 4 BU CREE 9 1 Remote potentiometer 2 ECA Board WH White wire RD Red Wire BU Blue wire Factory wiring Field wiring RT SVX19A E4 RT SVX
41. cedures make sure that thermostat or zone sensor is off CAUTION Use one of the following Test procedures to bypass some time delays and to start the unit at the control panel Each step of unit operation can be activated individually by temporarily shorting across the Test terminals for two to three seconds The Liteport LED located on the RTRM module will blink when the test mode has been initiated The unit can be left in any Test step for up to one hour before it will automatically terminate or it can be terminated by opening the main power disconnect switch Once the test mode has been terminated the Liteport LED will glow continuously and the unit will revert to the System control 49 TRANE Operation Test modes There are 2 methods in which the Test mode can be cycled with the test button 1 Step Test Mode This method initiates the different components of the unit one at a time by temporarily shorting across the two test terminals for two to three seconds For the initial start up of the unit this method allows the technician to cycle a component On and have up to 1 hour to complete the check Table 36 Service Test Guide for Component Operation on gas fired units 2 Auto Test Mode This method is not recommended for start up due to the short timing between individual component steps This method initiates the different components of the unit one at a time when a jumper is i
42. croll compressor must be established before the unit is started This is accomplished by confirming that the electrical phase sequence of the power supply is correct The motor is internally connected for clockwise rotation with the inlet power supply phased A B C Table 21 Electrical data YKD YKH Unit Wiring Electrical Characteristics Unit amps Standard Evaporator Oversized Evaporator Fan Motor Fan Motor Maximum Maximum UNIT MPS Minimum Overcurrent Minimum Overcurrent Circuit Protective circuit Protective Ampacity Device Fuse ampacity Device Fuse or Circuit or Circuit Breaker Breaker Without Electric heat option TKD H 155 400 3 50 35 50 36 9 50 TKD H 175 400 3 50 41 50 41 9 50 TKD H 200 400 3 50 44 63 44 5 63 TKD H 250 400 3 50 46 4 63 WKD H 125 400 3 50 31 9 40 33 8 40 WKD H 155 400 3 50 35 1 50 37 50 WKD H 200 400 3 50 50 4 63 50 9 63 YKD H 155 400 3 50 35 6 50 375 50 YKD H 175 400 3 50 42 3 50 43 2 50 YKD H 200 400 3 50 44 6 63 45 1 63 YKD H 250 400 3 50 46 4 63 With Electric heat TKD H 155 400 3 50 41 63 43 63 TKD H 175 400 3 50 43 63 43 63 TKD H 200 400 3 50 61 80 61 80 TKD H 250 400 3 50 62 80 WKD H 125 400 3 50 68 80 69 9 80 WKD H 155 400 3 50 71 2 80 73 1 80 WKD H 200 400 3 50 104 5 125 105 125 RT SVX19A E4 The direction of rotation may be reversed by interchanging any two of the line wires It is this possible interchange of wiring that makes a phase
43. e tubes for entering and leaving water are equipped with a threaded female connector Water connection inlet outlet 1 1 4 ISO R7 Hot water coil Installation and connection In order to prevent water to freeze up in the coil during unoccupied period or shutdown limited period it is recommended to use ethylene glycol The services of a water treatment specialist are recommended if water used can cause scaling deposits or erosion Insulate all the water piping likely to be exposed to freezing temperatures in order to avoid freeze up of the coil and heat losses The water distribution network must be fitted with vents in places where air is likely to be trapped Table 33 Ethylene glycol percentage Ethylene glyco point percentage 96 C 10 4 20 10 RT SVX19A E4 RT SVX19A E4 Unit Options e TRANE Electric Heater Electric heaters are fitted on the fan discharge Heaters have two heating stages and provided with two types of overheat thermostats e Automatic reset thermostats which stop the electric heater when the air temperature rises to 76 C Automatic reset at 60 C No alarm output available The manual reset thermostat which stop the unit when the air temperature rises to 120 C No alarm output available Figure 19 Soft starter Start Line Stop Load U Urg Use Soft Starter The soft starter is used to achieve a progressive suppl
44. ed and positioned e Unit is checked for refrigerant charge and leaks e Indoor and outdoor fans rotate freely and are fixed on shafts e Supply fan rotation speed is set e Access panels and doors are replaced to prevent air entering and risks of injury e Checking of the gas heating section in accordance with above procedure RT SVX19A E4 Operation e TRANE WARNING If any operating checks must be performed with the unit operating it is the technician s responsibility to recognize any possible hazards and proceed in a safe manner Failure to do so could result in severe personal injury or death due to electrical shock or contact with moving parts Power up initialization CAUTION Before proceeding with any test procedure or operation make sure that crankcase heaters have been energized for at least 8 hours Units equipped with Scroll compressors do not have crankcase heaters Note Upon power initialization the RTRM performs self diagnostic checks to insure that all internal controls are functional It also checks the configuration parameters against the components connected to the system The Liteport LED located on the RTRM module is turned On within 1 second of power up if internal operation is okay Test mode procedure at the ReliaTel control board Operating the unit from the roof using the test mode at the ReliaTel control board CAUTION Before proceeding with the following test pro
45. er motor e TRANE WKD H WKD H WKD H 125 155 200 Compressor Number 2 2 2 Type Scroll Scroll Scroll Model 6T 6T 75T 75T 10T 10T Rated Amps 1 A 10 0 10 0 12 1 12 1 175 175 Locked rotor Amps 2 A 74 74 79 79 98 98 Outdoor Fan Nominal Airflow m3 h 15300 15850 23600 Type Axial Axial Axial Diameter mm 660 660 710 Drive type Direct Direct Direct Number 2 2 2 Motor HP kW 0 25 0 25 0 56 Motor Rated Amps 1 A 1 6 1 6 2 3 Motor Locked rotor Amps 2 A 3 8 3 8 5 8 Motor RPM rpm 925 925 950 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 YKD H YKD H YKD H YKD H 155 175 200 250 Indoor Fan Nominal Airflow m3 h 8500 9850 11210 14100 Static pressure available 4 Pa 150 75 175 75 Maximum static pressure available 5 Pa 350 375 450 375 Type FC Centrifugal FC Centrifugal FC Centrifugal FC Centrifugal Diameter Width in in 15 15 15 15 18 18 18 18 Drive type Belt Belt Belt Belt Number 1 1 1 1 Motor HP Standard Oversized kW 2 2 3 0 3 0 4 6 3 0 4 6 4 6 Motor Rated Amps Standard Oversized A 4 6 6 5 6 5 9 0 6 5 9 0 9 Motor Locked rotor Amps Standard Oversized A 36 4 57 57 719 57 71 9 71 9 Motor RPM Standard Oversized rpm 1450 2870 2870 2900 2870 2900 2900 4 At the no
46. ings to prevent condensation in the ducts e The rims around the discharge and intake openings make it possible to attach the flanges on the ends of the ducts If you are using rigid duct ends recommended on the rooftop curb plan it is essential to fix these components before installing the unit e For the design of the duct network comply with recommendations currently applicable on the market in particular Figure 6 Condensate Drain location Installation of a section of flexible ducts to limit transmission of the unit s vibrations Use of movable vanes or deflectors to reduce the sound level 2 Horizontal discharge units TKH WKH YKH e The intake and discharge ducts must be insulated thermal insulation e The duct section located outside must be leak tight e Provide a flexible connector to prevent transmission of the unit vibrations This flexible duct must be installed inside the building Note In case of use of TKH WKH or YKH units with economizer option temperature and humidity sensors must be installed in return duct Economizer linkage is factory mounted but the damper position must be adjusted on site E N So lt m 1 Condensate drain connection D E D A a 0 A TKH YKH 155 175 200 250 WKH 125 155 200 B TKD YKD 155 175 200 250 WKD 125 155 200 11 TRA
47. ir temperature is below 53 F the damper modulates toward the closed position If the zone temperature continues to rise above the zone temperature setpoint controlband and the economizer damper is full open the RTRM energizes the compressor contactor CC1 If the zone temperature continues to rise above the zone temperature setpoint controlband and the economizer damper is fully open the RTRM energizes the compressor contactor CC2 The ECA continues to modulate the economizer damper open closed to keep the mixed air temperature that is calculated by the RTRM If economizing is not possible the ECA drives the damper to the minimum position setpoint when the supply fan relay F is energized and allows mechanical cooling operation When the unit is equipped with the optional fan failure switch wired between terminals J7 5 and J7 6 on the RTOM the RTRM will stop all cooling functions and produce an analog output if the fan failure switch FFS does not open within 40 seconds after a request for fan operation When the system is connected to a remote panel the SERVICE LED will flash when this failure occurs 55 TRANE Economizer Set Up Adjusting the minimum position potentiometer located on the unit economizer Actuator ECA sets the required amount of ventilation air Two of the three methods for determining the suitability of the outside air can be selected utilizing the enthalpy potentiometer on the EC
48. is provided on each corner of the unit base to facilitate handling 4 shackles and 4 slings are required Use a lifting beam to prevent the cables pressing too hard on top of the unit during lifting Figure 1a indicates the position of the center of gravity and the lifting recommendations Important For unit to fit on the roof curb the fork lift pockets must be removed RT SVX19A E4 Installation Table 1 Sling lengths and maximum unit weight Maximm weight Unit size A mm B mm kg 125 3000 1900 644 155 3000 1900 773 175 3000 1900 810 400 3500 2200 1001 500 3500 2200 1027 Figure 1b Maximum slope correction of adjustable roof curb Figure 2 Waterproofing 1 Roofcurb 2 Roof membrane 3 Seal 4 Rooftop RT SVX19A E4 e TRANE Roof curb Installation TKD WKD YKD accessories Roof curbs are available as an accessory for downflow units to support the unit and ensure the water tightness between the rooftop and the roof Two types of roof curbs are available The standard version to allow the installation of the unit on a flat roof and the adjustable version for a sloped roof installation See Figure 1b for the maximum slope correction of adjustable roofcurb The adjustable roof curbs are supplied pre assembled on a skid Two types of self adhesive seals are provided separately 40 mm wide for the perimeter 20 mm wide for the cross pieces Make sure
49. is equipped with the optional clogged filter switch wired between terminals J7 3 and J7 4 on the ReliaTel Options Module RTOM the RTRM produces an analog output if the clogged filter switch CFS closes for two minutes after a request for fan operation When the system is connected to a remote panel the SERVICE LED will be turned on when this failure occurs RT SVX19A E4 Low Ambient Operation During low ambient operation outside air temperature below 13 C the RTRM will cycle the compressor and outdoor fan motor Off for approximately three minutes after every 10 minutes of accumulated compressor run time The supply fan motor IDM will continue to operate during this evaporator defrost cycle EDC and the compressor and outdoor fan will return to normal operation once the defrost cycle has terminated and the compressor Off time delay has been satisfied RT SVX19A E4 Operation e TRANE Cooling with an Economizer The economizer is utilized to control the zone temperature providing the outside air conditions are suitable Outside air is drawn into the unit through modulating dampers When cooling is required and economizing is possible the RTRM sends the cooling request to the unit economizer actuator ECA to open the economizer damper The RTRM tries to cool the zone utilizing the economizer to slightly below the zone temperature setpoint If the mixed air sensor MAS senses that the mixed a
50. ist you in obtaining the best use of it and maintaining it in perfect operating condition over a long period of time the manufacturer has at your disposal a refrigeration and air conditioning service school The principal aim of this is to give operators and technicians a better knowledge of the equipment they are using or that is under their charge Emphasis is particularly given to the importance of periodic checks on the unit operating parameters as well as on preventive maintenance which reduces the cost of owning the unit by avoiding serious and costly breakdown TRANE Contents Foreword Warnings and Cautions Safety recommendations Reception Warranty Refrigerant Maintenance contract Storage Training Installation Reception of units Roof curb installation Dimensions Weights Clearances Installing the unit Connection of duct network Condensate drain piping Gas pipework installation Filter installation Supply fan adjustment Component air pressure drops Supply fan performances Electrical connection Controls Control wiring CO sensors Remote potentiometer Fire thermostat Clogged filter detector Smoke detector High temperature safety thermostat Remote fault relay Thermostats Communication Interfaces C C C0 C0 CO NOB DY Q ES ENS ESI ESI BE O of Oo RT SVX19A E4 CD C CD CD C0 Q GQ WwW Oo
51. ive Oversized drive Table 16 TK 200 External static pressure External Static Pressure Pa 25 50 75 100 125 150 175 200 225 250 m3 h RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW 8970 512 0 98 542 1 09 571 1 21 600 133 629 1 45 656 1 58 684 1 72 10090 519 1 16 547 1 28 575 1 39 601 1 51 627 1 64 653 1 77 679 1 91 704 2 05 11210 528 1 36 557 15 584 1 63 610 1 76 634 189 658 2 02 682 2 16 705 23 729 244 12330 537 1 58 568 1 74 596 19 622 2 05 647 2 19 670 2 33 692 2 47 714 262 735 2 77 757 2 92 13450 580 2 01 609 2 19 636 2 37 661 2 54 684 27 706 285 728 301 748 3 16 768 3 32 788 348 External Static Pressure Pa 275 300 325 350 375 400 425 450 475 500 m3 h RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW 8970 710 1 86 Sb E59 TOS 7EEGODEE TU 7S 10090 V2 2A Tes 255 Ti 25 00 29 OSEE SIT 11210 752 2 Wii ugs IS 282 BIS Sls MM 29 12330 778 3 08 799 3 24 820 34 841 3 57 13450 808 3 64 828 3 81 Standard drive Oversized drive RT SVX19A E4 23 TRANE Installation Table 17 TK 250 External static pressure External Static Pressure Pa 2b 50 75 100 125 150 175 200 225 250 m3 h RPM kW RPM kW RPM kW RPM KW RPM kW RPM KW RPM kW RPM KW RPM kW RPM kW 9870 585 131 609 1 42 632 151 654 1 6 675 169 695 1 78 11280 606 163 633 1 77
52. kW RPM kW 6800 787 1 29 816 1 38 843 147 7650 807 1 54 834 164 861 174 8500 832 183 857 194 882 2 04 9350 861 2 18 884 2 29 10200 Standard drive Oversized drive Table 20 WK 200 External static pressure External Static Pressure Pa 25 50 75 100 125 150 175 200 225 250 m3 h RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW 8970 521 1 01 550 1 12 579 1 24 608 136 636 1 49 664 162 691 1 76 10090 529 12 557 132 584 1 44 610 156 636 1 68 662 182 687 195 712 241 11210 540 1 42 569 156 595 1 69 621 182 645 1 95 669 2 08 692 222 715 2 36 738 2 51 12330 552 166 582 182 610 198 635 2 13 659 2 27 681 241 704 255 725 27 747 285 768 3 13450 597 2 11 625 23 651 247 SOM RE O E UM NM MM 14570 Ges 200 28 2 7109 S2 0 559 092 358 799 Bo Boe Sey 15690 G7 S Oy S87 WE Goll Hoi 85 16810 TS S85 79 SS External Static Pressure Pa 275 300 325 350 375 400 425 450 475 500 m3 h RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW 8970 TA US A A GONE NE GONE OT I A 288 258 10090 7 SON 809 50 257 11210 761 2 66 784 2 82 806 2 98 828 3 15 12330 ES SG SiO B82 Bis Ba 13450 0 95M ST0 ESO 14570 15690 16810 Standard drive Oversized drive RT SVX19A E4 25 TRANE Figure 10 Power supply TKD TKH WKD WKH units Installation Electrical connection The electric panel is located in the unit comp
53. liability for installations or servicing performed by unqualified 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 qualified and experienced personnel Reception On arrival inspect the unit before signing the delivery note 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 lette
54. minal airflow with standard drive 5 At the nominal airflow with oversized drive when available RT SVX19A E4 29 TRANE Installation Table 26 Electrical data YKD YKH Supply fan motor TKD H TKD H TKD H TKD H 155 175 200 250 Indoor Fan Nominal Airflow m3 h 8500 9850 11210 14100 Static pressure available 4 Pa 175 250 200 125 Maximum static pressure available 5 Pa 325 400 375 350 Type FC Centrifugal FC Centrifugal FC Centrifugal FC Centrifugal Diameter Width in in 15 15 15 15 18 18 18 18 Drive type Belt Belt Belt Belt Number 1 1 1 1 Motor HP Standard Oversized W 2 2 3 0 3 0 4 6 3 0 4 6 4 6 Motor Rated Amps Standard Oversized A 4 6 6 5 6 5 9 0 6 5 9 0 9 Motor Locked rotor Amps Standard Oversized A 36 4 57 57 71 9 57 71 9 719 Motor RPM Standard Oversized pm 1450 2870 2870 2900 2870 2900 2900 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 WKD H WKD H WKD H 125 155 200 Indoor Fan Nominal Airflow m3 h 7140 8500 11210 Static pressure available 4 Pa 200 175 200 Maximum static pressure available 5 Pa 425 325 350 Type FC Centrifugal FC Centrifugal FC Centrifugal Diameter Width in in 15 15 15 15 18 18 Drive type Belt Belt Belt Num
55. mostat interface Units applied with this type of controller need to accept conventional thermostat inputs Conventional thermostat signals represent direct calls for unit functions In their simplest applications thermostat contacts directly control contactors or other load switching devices This function provides inputs for the thermostat signals and processing to enhance reliability and performance Compressor protection and reliability enhancement functions HPC LPC Minimum On Off timers etc All operate the same whether applied with zone sensors or a conventional thermostat Logic is also provided to cause appropriate unit functions when inappropriate thermostat signals are provided Simultaneous calls for heating and cooling will be ignored and the fan will be turned on with a call for heating or cooling even if the fan request is not detected If the thermostat is immediately changed from a heating to a cooling call or vice versa there will be a five minute delay before the new call will initiate RT SVX19A E4 Thermostat signals are as follows R 24VAC power to thermostat Y1 Call for compressor 1 or first stage cooling Y2 Call for compressor 2 or 2nd stage 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 valve On cooling Off heating T Bias for heat anticipation for those mechanical thermostats that use this fu
56. mounted CO2 sensor Refer to the wiring diagram provided in the unit Mounting the wall mounted sensor 1 Select a proper location in the room to mount the CO sensor Look for an interior wall with good air circulation approximately 1 4 m from the floor 2 Remove the back plate from the sensor and thread the power wires and output signal wire through the hole in the back plate For surface wiring make cut outs with pliers to the thinner section of the upper or lower edge of the back plate and to thread the wires through 3 Mount the back plate to the wall with screws Note that the arrow on the back plate shows the mounting direction OUTPUT lt SELECTION JUMPERS m 0 10V ale ew s SELECTED RT SVX19A E4 RT SVX19A E4 Controls e TRANE Mounting the duct mounted CO2 sensor 1 Select a proper location on the duct to mount the CO sensor 2 Drill a 22 25 mm hole in the mounting surface for sensor insertion Figure 13 3 Attach the mounting plate to the duct wall with four screws 4 Insert the sensor through the mounting plate adjusting the depth for optimal air sensing Figure 13 Duct mounted CO2 sensor 15 8 in 42 mm 7 g 22 mm 97 15 8 in 42 mm CO sensor maintenance This CO2 sensor has excellent stability and requires no maintenance In most environments the recommended calibration interval is five years A trained service technician
57. nction RT SVX19A E4 Operation e TRANE Conventional thermostat Gas Electric Electric Heat Function when Input connection energized G fan Fan runs continuously except during unoccupied mode see next page Y1 compressor 1 Compressor 1 runs or economizer or economizer operates Y2 compressor 2 Compressor 2 also or compressor 1 runs or 1 while economizing compressor runs while economizing W1 gas electric 1st stage heat heat first stage W2 gas electric 2nd stage heat if heat 2nd stage available Conventional thermostat Heat Pump Function when Input connection energized Cooling mode G fan Fan runs continuously except during unoccupied mode see next page O reversing valve Reversing valve in during cooling cool mode Y1 O Compressor 1 runs first stage cooling or economizer operates Y1 Y2 O Compressor 2 also 2nd stage cool runs or 1 compressor runs while economizing Heating mode G fan Fan runs continuously except during unoccupied mode see below Y1 both Both compressors compressors 1st run stage heat Y2 during heating No change nothing happens W2 electric heat 2nd stage electric 2nd stage heat X2 electric heat Electric heat only only no compressors T provides heat anticipation signal for those mechanical thermostats that use this feature If the thermostat used does not have a T terminal disregard thi
58. nit purchase a ZSM and connect wires with alligator clamps to terminals 6 through 10 Connect each respective terminal wire 6 through 10 from the Zone Sensor to the unit J6 terminals 6 through 10 Note If the system is equipped with a programmable zone sensor THS03 the LED indicators will not function while the ZSM is connected 62 Maintenance Resetting Cooling and Ignition Lockouts Cooling Failures and Ignition Lockouts are reset in an identical manner Method 1 explains resetting the system from the space Method 2 explains resetting the system at the unit Note Before resetting Cooling Failures and Ignition Lockouts check the Failure Status Diagnostics by the methods previously explained Diagnostics will be lost when the power to the unit is disconnected Method 1 To reset the system from the zone turn the Mode selection switch at the zone sensor to the Off position After approximately 30 seconds turn the Mode selection switch to the desired mode i e Heat Cool or Auto Method 2 To reset the system at the unit cycle the unit power by turning the disconnect switch Off and then On Lockouts can be cleared through the building management system Refer to the building management system instructions for more information Zone Temperature Sensor ZTS Service Indicator The ZSM SERVICE LED is a generic indicator that will signal the closing of a Normally Open switch a
59. nstalled across the test terminals The unit will start the first test step and change to the next step every 30 seconds At the end of the test mode control of the unit will automatically revert to the applied System control method For unit test steps and test modes values to cycle the various components refer to Table 36 Step Mode poi Economizer mu Heat 1 Heat 2 Outdoor 1 Outdoor 2 1 Fan On On Min Off Off Off Off 2 Off Off Off Off 3 Cool1 On Min On Off Off X 4 Cool2 On Min On On Off O On xm 5 Heat1 On Min Off Off On Ofi O Off 6 Heat2 On Min Off Off On On Off With Optional Accessory Off If temperature falls below 16 1 C On if temperature rises above 18 1 C Note Steps for optional accessories and modes not present in unit will be skipped 50 RT SVX19A E4 e TRANE Operation Unit start up Note Unit to be installed outside PEE only Verification of gas valve settings Reserved for the qualified gas technician Note Expansion valve must be adapted to the type of gas used e G20 20 mb e G25 25 mb G31 Propane 37 or 50 mb WARNING Improper gas valve setting may lead to burner destruction and people injury Note Unit factory set for G20 Figure 23 Gas valve 1 Negative pressure controller 2 Safety solenoid val
60. ory If this condition is not respected the manufacturer warranty could be cancelled 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 that any malfunction is detected and corrected in good time and minimizes the possibility that serious damage will occur Finally regular maintenance ensures the maximum operating life of your equipment We would remind you that failure to respect these installation and maintenance instructions may result in immediate cancellation of the warranty Storage Take precautions to prevent condensate formation inside the unit s electrical components and motors when 1 The unit is stored before it is installed or 2 The unit is set on the roof curb and temporary auxiliary heat is provided in the building Isolate all side panel service entrances and base pan openings e g conduit holes S A and R A openings and flue openings to minimize ambient air from entering the unit until it is ready for start up Do not use the unit s heater as temporary heat without completing the start up procedures detailed under Unit Start Up TheTrane Company will not assume responsibility for equipment damage resulting from accumulation of condensate on the unit electrical components Training To ass
61. ou may leave the system in that mode for up to one hour while troubleshooting Refer to the sequence of operations for each mode to assist in verifying proper operation Make the necessary repairs and proceed to Steps 7 and 8 7 If no abnormal operating conditions appear in the test mode exit the test mode by turning the power Off at the main power disconnect switch 8 Refer to the individual component test procedures if other microelectronic components are suspect System Status Checkout Procedure System Status is checked by using one of the following two methods Method 1 If the Zone Sensor Module ZSM is equipped with a remote panel with LED status indication you can check the unit within the space If the ZSM does not have LED s use Method 2 THS P03 have the remote panel indication feature The LED descriptions are listed below LED 1 System On during normal operation Off if a system failure occurs or the LED fails Flashing indicates test mode LED 2 Heat On when the heat cycle is operating Off when the heat cycle terminates or the LED fails Flashing indicates a heating failure LED 3 Cool On when the cooling cycle is operating Off when the cooling cycle terminates or the LED fails Flashing indicates a cooling failure LED 4 Service On indicates a clogged filter Off during normal operation Flashing indicates an supply fan failure RT SVX19A E4 Below
62. r to the last carrier within 3 days of delivery Reception in France only 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 RT SVX19A E4 Warranty Warranty is based on the general terms and conditions of the manufacturer The warranty is void if the equipment is repaired or modified without the written approval of the manufacturer if the operating limits are exceeded or if the control system or the electrical wiring is modified 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 RT SVX19A E4 e TRANE General information Refrigerant The refrigerant provided by the manufacturer meets all the requirements of our units When using recycled or reprocessed refrigerant it is advisable to ensure its quality is equivalent to that of a new refrigerant For this it is necessary to have a precise analysis made by a specialized laborat
63. resistance between terminals 1 and 2 on the Zone Temperature Sensor Table 42 Thermistor Resistance Temperature Chart Temperature resistance coefficient is negative Temperature Resistance C kOhms 21 103 15 74 65 9 54 66 7 46 94 4 40 4 1 34 85 2 30 18 4 26 22 7 22 85 10 19 96 13 1747 16 15 33 18 13 49 21 11 89 24 10 5 27 9 297 29 8 247 32 733 35 6 528 38 5 824 63 S TRANE A business of American Standard Companies www trane com For more information contact your local Trane sales office or e mail us at comfort trane com Quality Management Svstem Approval Literature order number RT SVX19A E4 Date 0805 Supersedes RT SVX04A and RT SVX05A Literature stocking location Europe Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice Only qualified technicians should perform the installation and servicing of equipment referred to in this publication American Standard Europe BVBA Registered Office 1789 Chauss e de Wavre 1160 Brussels Belgium
64. ressor section Remove the compressor access panel The unit is designed to run with 400 V 596 50 Hz 3 ph Factory supplied Disconnect switch Option The disconnect switch is factory mounted It is located on the side of the Electrical panel and equipped with fuses as standard 1 Power supply from the bottom or from the side 26 Over current protection The branch circuit feeding the unit must be protected in accordance with national or local codes and max unit amps indicated in Table 21 to 28 Power wiring The unit power supply must be provided by 4 wire cable with cross sectional areas complying with legislation The power supply cables must be laid in leak tight pipes and pass through the bottom of the electric panel The cables must not be taut Appropriate connectors must be provided Flexible pipe supports are required to prevent noise transmission in the building structure Ensure all the connections are tightened Note 1 earthing must be executed in accordance with local legislation 2 the machines are designed for a short circuit current of 10 kA In the event of a higher application contact your Trane sales office RT SVX19A E4 Installation e TRANE Scroll compressors Compressor electrical phasing Proper phasing of the electrical power wiring is critical for proper operation and reliability of the scroll compressor and fans Proper rotation of the s
65. s terminal 45 TRANE 46 Operation Unoccupied mode If the thermostat being used is programmable it will have its own strategy for unoccupied mode and will control the unit directly If a mechanical thermostat is being used a field applied time clock with relay contacts connected to J6 11 and J6 12 can initiate an unoccupied mode as follows e Contacts open Normal occupied operation e Contacts closed Unoccupied operation as follows Fan in auto mode regardless of fan switch position Economizer closes except while economizing regardless of minimum position setting Cooling Economizer Operation If unit does not have an economizer the Cool Econ Stage 1 and Stage 2 will call directly for mechanical cooling compressor stages If the unit has an economizer the Cool Econ stages will function as follows Table 34 Cooling Economizer Operation with Thermostat1 2 OK to Thermostat Thermostat Call for Economizer Compressor Staging Economize Y1 Y2 Cooling Request No On Off Inactive Compressor Output 1 No Off On Inactive Compressor Output 2 No On On Inactive edel 2 Yes On Off Active Off Yes Off On Active Compressor off Yes On On Active Compessor RT SVX19A E4 RT SVX19A E4 Operation e TRANE Setting the economizer or 0 50 motorized hood option The ECA board is mounted on the damper actuator To access the ECA board on economizers e Remove the access panel loc
66. s closed the unit will not operate when connected to check the fan motor belts and proving switch 2 Clogged filter switch has closed check the filters Simultaneous Heat and Cool Failure 1 Emergency Stop is activated Method 2 The second method for determining system status is done by checking voltage readings at the RTRM J6 The system indication descriptions and the approximate voltages are listed below System Failure Measure the voltage between terminals J6 9 amp J6 6 Normal Operation approximately 32 VDC System Failure less than 1 VDC approximately 0 75 VDC Test Mode voltage alternates between 32 VDC amp 0 75 VDC Heat Failure Measure the voltage between terminals J6 7 amp J6 6 Heat Operating approximately 32 VDC Heat Off less than 1 VDC approximately 0 75 VDC Heating Failure voltage alternates between 32 VDC amp 0 75 VDC Cool Failure Measure the voltage between terminals J6 8 amp J6 6 Cool Operating approximately 32 VDC Cool Off less than 1 VDC approximately 0 75 VDC Cooling Failure voltage alternates between 32 VDC amp 0 75 VDC 61 TRANE Service Failure Measure the voltage between terminals J6 10 amp J6 6 Clogged Filter Approximately 32 VDC Normal Less than 1 VDC approximately 0 75 VDC Fan Failure voltage alternates between 32 VDC amp 0 75 VDC To use LED s for quick status information at the u
67. sequence indicator necessary if the operator is to quickly determine the phase rotation of the compressor motor The ABC indicator on the face of the phase indicator will glow if phase is ABC for terminals L1 L2 L3 CAUTION After completion of wiring check all electrical connections and ensure all connections are tight Replace and secure all electrical box covers and access doors before leaving unit or connecting power to circuit supplying unit CAUTION Units with Scroll compressors are not equipped with crankcase heaters WARNING Disconnect all power including remote disconnects and discharge all capacitors before servicing Follow proper lockout tagout procedures to ensure the power cannot be inadvertently energized After power is removed allow 4 minutes for capacitors to discharge Verify with an appropriate voltmeter that all capacitors have discharged Failure to disconnect power and or discharge capacitors before servicing could result in death or serious injury For additional information regarding the safe discharge of capacitors see Trane Service Bulletin PROD SVBO6A 27 TRANE Installation Table 22 Electrical data TKD TKH Compressor motor and condenser motor YKD H YKD H YKD H YKD H 155 175 200 250 Compressor umber 2 2 2 2 Type Scroll Scroll Scroll Scroll odel 9T 5T 10T 6 7T 9T 9T 10T 10T ominal Amps 1 A 15 0 8 5 15 1 11 4 14 7
68. t any time providing the Indoor Motor IDM is operating This indicator is usually used to indicate a clogged filter or an air side fan failure The RTRM will ignore the closing of this Normally Open switch for 2 1 minutes This helps prevent nuisance SERVICE LED indications The exception is the LED will flash 40 seconds after the fan is turned On if the Fan Proving Switch is not made Clogged Filter Switch This LED will remain lit the entire time that the Normally Open switch is closed The LED will be turned off immediately after resetting the switch to the Normally Open position or any time that the IDM is turned Off If the switch remains closed and the IDM is turned On the SERVICE LED will be turned On again after the 2 1 minute ignore delay This LED being turned On will have no other affect on unit operation It is an indicator only Fan Failure Switch When the Fan Failure switch is wired to the RTOM the LED will remain flashing the entire time the fan proving switch is closed indicating a fan failure and it will shut the unit operations down RT SVX19A E4 RT SVX19A E4 Maintenance e TRANE Zone Temperature Sensor ZTS Test Note These procedures are not for programmable or digital models and are conducted with the Zone Sensor Module electrically removed from the system Test 1 Zone Temperature Thermistor ZTEMP This component is tested by measuring the
69. urner G350 Propane Gas G31 30 37ou 50 mbar 88 00 MJ m 15 C 1013 Nominal rat 2 7 Gas Flow 15 C 1013 mbar mn Reduced rate 2 56 Nominal rate 5 1 Gas Flow 15 C 1013 mbar kg h Reduced rate 4 9 Heating it kW Nominal rate 575 sal lr Reduced rate 55 3 Nominal rat 65 3 Heating Rate kW Reduced rate 62 6 ud Nominal rate 88 Efficiency 96 Reduced rate 88 3 Combustion Air Flow mh Nominal rate 98 Avec E 25 Reduced rate 93 CO 96 0 001 G31 37mbar Smoke analysis 400V 3 50Hz ox ppm CO 96 8 996 52 RT SVX19A E4 Starting the unit in cooling mode Before start up ensure that all power cables are tightened Verify that the unit airflow rate is adjusted according to the information provided in the Supply fan adjustment section of this manual To start the unit in cooling mode e Place the zone sensor system switch in the COOL position e Position the cooling setpoint approximately 10 below room temperature and place the fan switch in the AUTO or ON position e Turn on unit main power supply The condenser fan motor compressor and supply fan motor should operate automatically There will be a delay of up to 5 minutes before the unit starts in cooling mode RT SVX19A E4 Operation e TRANE Operating pressures After the unit has operated in cooling mode for a short period of time install pressure gauges on the gauge ports of the discharge and suction
70. ve 3 Gas injector 4 Air inlets 5 To the burner 6 Fan 7 Gas unit 8 Minimum gas pressure cut out RT SVX19A E4 51 TRANE Operation Table 37 Marking category of the gas section in different countries Country FR CH ES GB IE PT IT NL BE LU DE AT DK FI SE Category II2E 3P II2H3P II2H3 II2L3P 12 amp I3P I2E amp I3P 12H Type of gas Pressure in mbar G20 20 20 20 20 20 20 G25 25 25 25 20 G31 37 37 37 30 37 50 Table 38 Gas burner data G350 YK 155 175 200 225 1 Burner G350 Natural Gas G20 20mbar 34 02 MJ m 15 C 1013 Nominal rate 8 1 Gas Flow 15 C 1013 mbar m h Reduced rate 8 13 Nominal rate 69 3 Heating Capacity kW Reduced rate 69 1 Nominal rate 77 kW Heating Rate Reduced rate 76 8 Sr Nominal rate 90 Efficiency Reduced rate 90 CO 96 0 001 G20 20mbar Smoke analysis 400V 3 50Hz ox ppm 9 ppm CO 96 9 796 Burner G350 Natural Gas G25 20 ou 25 mbar 29 30 MJ m 15 C 1013 Nominal rate 8 8 Gas Flow 15 C 1013 mbar m h Reduced rate 8 21 Nominal rate 62 9 Heating Capacity kW Reduced rate 59 5 Nominal rate 71 5 Heating Rate kW Reduced rate 66 8 x Nominal rate 88 Efficiency Reduced rate 89 CO lt 0 001 G25 25mbar Smoke analysis 400V 3 50Hz Nox ppm CO 96 7496 B
71. verification that the gas valve is de energized IGN checks the high limit switches TCO1 amp TC02 for normally closed contacts With 115 VAC power supplied to the ignition module IGN the hot surface ignition probe IP is preheated for approximately 45 seconds The gas valve GV is energized for approximately 7 seconds for trial for ignition to ignite the burner Once the burner is ignited the hot surface ignition probe IP is de energized by the ignition module IGN and functions as the flame sensing device If the burner fails to ignite the ignition module will make two more attempts before locking out The green LED will indicate a lock out by two fast flashes An ignition lockout can be reset by 1 Opening for 3 seconds and closing the main power disconnect switch 2 By switching the Mode switch on the zone sensor to OFF and then to the desired position 3 Allowing the ignition control module to reset automatically after one hour RT SVX19A E4 RT SVX19A E4 Operation e TRANE Refer to the ignition control module diagnostics section for the LED diagnostic definitions When the fan selection switch is set to the Auto position the RTRM energizes the supply fan relay F coil approximately 30 second after initiating the heating cycle to start the supply fan motor IDM The automatic reset high limit TCO1 located in the bottom right corner of the burner compartment protects ag
72. w to check the ReliaTel Refrigeration Module RTRM All diagnostics amp system status information stored in the RTRM will be lost when the main power is turned Off 1 Verify that the Liteport LED on the RTRM is burning continuously If the LED is lit go to Step 3 2 If the LED is not lit verify that 24 VAC is present between J1 1 and J1 2 If 24 VAC is present proceed to Step 3 If 24 VAC is not present check the unit main power supply check transformer TNS1 Proceed to Step 3 if necessary 3 Utilizing Method 1 or Method 2 in the system status diagnostic section check the following System status Heating status Cooling status If a System failure is indicated proceed to Step 4 If no failures are indicated proceed to Step 5 4 If a System failure is indicated recheck Steps 1 and 2 If the LED is not lit in Step 1 and 24 VAC is present in Step 2 the RTRM has failed Replace the RTRM 60 Maintenance 5 If no failures are indicated use one of the TEST mode procedures described in the unit Start Up section to start the unit This procedure will allow you to check all of the RTRM outputs and all of the external controls relays contactors etc that the RTRM outputs energize for each respective mode Proceed to Step 6 6 Step the system through all of the available modes and verify operation of all outputs controls and modes If a problem in operation is noted in any mode y
73. xpansion valve Field supplied 9 Filter Field supplied CAUTION The gas pipework must not exert any stress on the burner gas connection Note Expansion valve must be adapted to the type of gas used e G20 20 mb e G25 25 mb e G31 Propane 37 or 50 mb Table 4 Gas burner models Unit Burner size YKD H 155 G350A YKD H 175 G350A YKD H 200 G350A YKD H 250 G350A See Table 38 for burner performance Gas leak check procedure 1 Vent the gas line 2 Gas supply line pressure test close valve 4 and open valve 2 3 Leak check the gas pipe Look for gas pipe leaks using Typol 1000 bulles or a similar product Do not use soapy water WARNING Never use an open flame to check for gas leaks Required gas pressure at the unit inlet connection are given in Table 37 Note To operate with propane gas the burner is fitted with a pressure limiter supplied by Trane 13 TRANE 14 Installation Filter installation To gain access to filters remove the supply fan access panel on downflow units and the filter access panel on the end for horizontal units Each unit ships with 40 or 50 mm thick filters Number and size of filters is determined by size and configuration of the unit Table 5 Filter arrangement CAUTION Do not operate unit without filters in place The maximum pressure drops allowable on filters are EU2 G2 120 Pa EU4 G4 150 Pa
74. y fan start and a reduced starting current as well as the motor starting torque This option is well adapted for textile duct applications It is factory installed in the main control panel The soft starter gradually increases the voltage of the supply fan motor until it reaches full line voltage The starting time can be adjusted from 0 to 64 seconds but the soft starter is factory set to the maximum starting time value 64 seconds Motor Softstarter CJ ees Diag 1 Three phase mains connections 2 Motor connections 3 Settings 4 Status outputs 5 Controls 6 LEDs Made in France 41 TRANE 42 Unit Options 0 25 fresh air hood This option includes for the hood itself wire mesh and a slidable The 0 25 fresh air hood allows to damper introduce fresh air into the unit i n BE The slidable damper has to be This is a manual device fitted on the adjusted manually by removing the back of the unit sized fora screws and sliding it off up or down maximum of 2596 of the nominal Figure 20 rooftop air flow The amount of fresh air introduced is then permanently fixed Figure 20 0 25 manual fresh air hood 1 2 Intake hood 2 Wire mesh 3 Slidable damper RT SVX19A E4 Unit Options e TRANE Barometric relief The barometric relief allows to minimize overpressure in the building caused by the introduction of fresh air
75. y static total system external static the supply fan for a specific pressure drop from step 1b to pressure Then locate the application the design external static appropriate airflow rate for your 1 Determine total external static pressure from step 1a The unit The value obtained pressure about system and sum of these two values is the represents the brake horsepower accessories total system external static for the supply fan motor and the a Obtain the design airflow rate pressure fan RPM and the design external static 3 Adjust motor sheave according pressure drop through the to Table 6 distribution system Table 6 Motor sheave Fan speed Fan Speed RPM Standard Drive 6 turns 5 turns 4 turns 3 turns 2 turns 1 turns UNIT Open Open Open Open Open Open Closed YKD YKH 155 566 601 637 672 708 743 A YKD YKH 175 724 769 815 860 906 951 A YKD YKH 200 513 550 586 623 659 696 A YKD YKH 250 588 619 650 681 712 743 A KD TKH 155 566 601 637 672 708 743 A KD TKH 175 724 769 815 860 906 951 A KD TKH 200 513 550 586 623 659 696 A KD TKH 250 588 619 650 681 712 743 A WKD WKH 125 533 566 600 633 667 700 A WKD WKH 155 566 601 637 672 708 743 A WKD WKH 200 513 550 586 623 659 696 A Fan Speed RPM Oversized Drive 6 turns 5 turns 4 turns 3 turns 2 turns 1 turns UNIT Open Open Open Open Open Open Closed YKD YKH 155 672 714 756 798 840 882 A YKD YKH 175

Trane RT-SVX19A-E4 User's Manual

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