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RT-SVX25C-EN

Installation

Space Temperature Averaging

Space temperature averaging is accomplished by wiring a number of remote sensors in a series/
parallel circuit.

Using the BAYSENS016* or BAYSENS017*, at least four sensors are required to accomplish space
temperature averaging.

Example #1 illustrates two series circuits with two sensors in each circiut wired in parallel. The
square of any number of remote sensors required.

Example #2 illustrates three sensors squared in a series/parallel circuit. Using BAYSENS032*, two
sensors are required to accomplish space temperature averaging. Example #3 illustrates the circuit
required for this senor.

Table 5

lists the temperature versus resistance coefficient for all sensing.

Table 5.

Temperature vs. resistance

Degrees F° Degrees C°

Nominal Resistance

-20°

-28.9°

170.1 K - Ohms

-15°

-26.1°

143.5 K - Ohms

-10°

-23.3°

121.4 K - Ohms

-5°

-20.6°

103.0 K - Ohms

0°

-17.8°

87.56 K - Ohms

5°

-15.0°

74.65 K - Ohms

10°

-12.2°

63.80 K - Ohms

15°

-9.4°

54.66 K - Ohms

20°

-6.7°

46.94 K - Ohms

25°

-3.8°

40.40 K - Ohms

30°

-1.1°

34.85 K - Ohms

35°

1.7°

30.18 K - Ohms

40°

4.4°

26.22 K - Ohms

45°

7.2°

22.85 K - Ohms

50°

10.0°

19.96 K - Ohms

55°

12.8°

17.47 K - Ohms

60°

15.6°

15.33 K - Ohms

65°

18.3°

13.49 K - Ohms

70°

21.1°

11.89 K - Ohms

75°

23.9°

10.50 K - Ohms

80°

26.7°

9.297 K - Ohms

85°

29.4°

8.247 K - Ohms

90°

32.2°

7.330 K - Ohms

95°

35.0°

6.528 K - Ohms

100°

37.8°

5.824 K - Ohms

Содержание TC*150-301

Страница 1: ...December 2008 RT SVX25C EN Installation Operation Maintenance Packaged Electric Electric 12 25 Ton Model Number TC 150 301 ...

Страница 2: ...ng of all refrigerants including industry replacements for CFCs such as HCFCs and HFCs Responsible Refrigerant Practices Trane believes that responsible refrigerant practices are important to the environment our customers and the air conditioning industry All technicians who handle refrigerants must be certified The Federal Clean Air Act Section 608 sets forth the requirements for handling reclaim...

Страница 3: ...e 3 Electromechanical thermostat 24V AC conductors with Reliatel 26 Table 4 Zone sensor module wiring 27 Smoke Detector 29 Space Temperature Averaging 32 Table 5 Temperature vs resistance 32 Voltage Imbalance 34 Electrical Phasing Three Phase Motors 34 Compressor Crankcase Heaters 35 ReliaTel Controls 36 Pre Start 37 Test Modes 37 Table 6 Service test guide for component operation 37 Verifying Pro...

Страница 4: ...Method 2 50 Table 11 Temps and resistance values 52 Table 12 System mode and fan selection 53 Wiring Diagrams 55 Table 13 Wiring diagrams for R 22 units and heaters 55 Table 14 Wiring diagrams for R 410A units 58 Warranty 60 Central Air Conditioner 60 TCY TCX TCC TCD TCH TCK TCM TCP THC and TSC Parts Only 60 Standard Equipment Warranty Terms and Conditions Commercial Equip ment Warranty and Liabil...

Страница 5: ...or 180 15 tons standard efficiency 0C Downflow economizer oversized motor 181 15 tons high efficiency 0F Trane communications interface TCI 210 17 1 2 tons standard efficiency 0G Downflow economizer TCI 211 17 1 2 tons high efficiency 0H Thermal expansion valve 240 20 tons standard efficiency 0J Oversized motor thermal expansion valve 241 20 tons high efficiency 0K Downflow economizer oversized mo...

Страница 6: ...questing service be sure to refer to the specific model number and serial number printed on the unit nameplate WARNING Contains Refrigerant System contains oil and refrigerant under high pressure Recover refrigerant to relieve pressure before opening the system See unit nameplate for refrigerant type Do not use non approved refrigerants refrigerant substitutes or refrigerant additives Failure to f...

Страница 7: ...on the side of the compressor Unit Description Before shipment each unit is leak tested dehydrated charged with refrigerant and compressor oil and run tested for proper control operation The condenser coils are aluminum fin mechanically bonded to copper tubing Direct drive vertical discharge condenser fans are provided with built in thermal overload protection The ReliaTel Control Module is a micr...

Страница 8: ...ction as they interface with the various modules Refer to the unit s electrical schematic for the specific module connections The following controls are available from the factory for field installation Supply Fan Failure Input Optional The Fan Failure Switch can be connected to sense indoor fan operation FFS Fan Failure Switch If air flow through the unit is not proven by the differential pressur...

Страница 9: ...charge line thermostats are wired in series between the compressor outputs on the RTRM and the compressor contactor coils If the high pressure control switch or discharge line thermostat open the RTRM senses a lack of current while calling for cooling and locks the compressor out This is an auto reset lockout If the circuit is open three consecutive times when the contactor coil should be on the R...

Страница 10: ...YSENS019B Remote Panel wiring must be 18 AWG Shielded Twisted Pair Belden 8760 or equivalent Refer to the specific Remote Panel for wiring details High Temperature Sensor BAYFRST001A This sensor connects to the RTRM Emergency Stop Input on the LTB and provides high limit shutdown of the unit The sensor is used to detect high temperatures due to fire in the air conditioning or ventilation ducts The...

Страница 11: ...nce tables There are certain models however if operated at low airflow will not develop an airflow velocity that falls within the required 500 to 4000 feet per minute range For these models the design airflow shall be greater than or equal to the minimum CFM specified in the table provided below Failure to follow these instructions will prevent the smoke detector from performing it s design functi...

Страница 12: ...piration in these situations First Aid Measures Eye Contact Flush eyes with water to remove dust If symptoms persist seek medical attention Skin Contact Wash affected areas gently with soap and warm water after handling Storage Take precautions to prevent condensate from forming inside the unit s electrical compartments and motors if the unit is stored before it is installed or the unit is set on ...

Страница 13: ...RT SVX25C EN 13 Unit Dimensions Figure 1 WITHOUT ECONOMIZER 5 8 WITH ECONOMIZER 5 0 ...

Страница 14: ... 2 ton standard efficiency R22 units 12 1 2 ton high efficiency R22 units 12 1 2 ton standard efficiency R410A units Figure 3 Unit dimensional data for 12 1 2 ton 15 ton 17 1 2 ton standard efficiency R22 units 12 1 2 ton high efficiency R22 units 12 1 2 ton standard efficiency R410A units ...

Страница 15: ... efficiency R22 units 15 25 ton standard efficiency R410A units 12 15 ton high efficiency R410a Figure 5 Roofcurb dimensional data 20 ton 25 ton standard efficiency R22 units 15 25 ton high efficiency R22 units 15 25 ton standard efficiency R410A units 12 15 ton high efficiency R410A 17 25 ton high efficiency R410A units ...

Страница 16: ...7 25 ton high efficiency R410A units Figure 7 Unit dimensional data for 12 1 2 ton 15 ton 17 1 2 ton standard efficiency R22 units 12 1 2 ton high efficiency R22 units 12 1 2 ton standard efficiency R410A units 12 1 2 15 ton high efficiency R410A units 64 1 8 1629mm ...

Страница 17: ... 17 Unit Dimensions Figure 8 Unit dimensional data 20 ton 25 ton standard efficiency R22 units 15 25 ton high efficiency R22 units 15 25 ton standard efficiency R410A units 17 1 2 25 ton high efficiency R410A units ...

Страница 18: ...7 303 406 TC 210C 1654 565 425 285 378 TC 210E 1969 626 514 376 451 TC 211C 1921 643 495 341 442 TC 211E 2051 652 536 392 470 TC 240B 1913 679 482 312 440 TC 240E 1972 627 515 377 452 TC 241C 2031 697 528 348 458 TC 241E 2053 653 536 392 470 TC 241E Reheat unit 2071 659 541 396 474 TC 250B 1906 661 507 320 418 TC 300B 1906 661 507 320 418 TC 300E 1948 615 511 375 447 TC 301C 2016 695 524 343 454 T...

Страница 19: ...1C 871 292 225 155 200 TC 211E 296 243 178 213 TC 240B 868 308 219 142 200 TC 240E 284 243 171 205 TC 241C 921 316 239 158 208 TC 241E 296 243 178 213 TC 241E Reheat unit 299 245 180 215 TC 250B 865 300 230 145 190 TC 300B 865 300 230 145 189 TC 300E 279 212 170 203 TC 301C 914 315 238 155 206 TC 301E 290 241 177 211 Figure 9 Corner weights Table 2 Typical unit weights and point loading data kg co...

Страница 20: ...properly lift unit could result in death or serious injury or possible equipment or property only damage Rigging Refer to Figure 10 and Table 1 and Table 2 for typical unit operating weights riffing before proceeding 1 Remove the shipping crate from around the unit Do not remove the crating from the top of the unit 2 Rig the unit as shown in Figure 10 Attach adequate strength lifting slings to all...

Страница 21: ...25C EN 21 Unit Weights 6 Downflow units align the base rail of the unit with the curb rail while lowering the unit onto the curb Make sure that the gasket on the curb is not damaged while positioning the unit ...

Страница 22: ...sideration cut only the holes in the roof deck for the ductwork penetrations Do not cut out the entire roof deck within the curb perimeter If a Curb Accessory Kit is not used a The ductwork can be attached directly to the factory provided flanges around the unit s supply and return air openings Be sure to use flexible duct connections at the unit b For built up curbs supplied by others gaskets mus...

Страница 23: ...unit and heater nameplate Inspect the heater junction box and control panel tighten any loose connections Check electric heat circuits for continuity Low Voltage Wiring AC DC Requirements Install the zone thermostat with or without switching subbase Connect properly sized control wiring to the proper termination points between the zone thermostat and the unit control panel Condensate Drain Configu...

Страница 24: ...l codes Verify that the power supply available is compatible with the unit s nameplate ratings The available supply power must be within 10 of the rated voltage stamped on the nameplate Use only copper conductors to connect the power supply to the unit CAUTION Use Copper Conductors Only Unit terminals are not designed to accept other types of conductors Failure to use copper conductors may result ...

Страница 25: ...on diagram that shipped with the unit for specific termination points 4 Provide proper grounding for the unit in accordance with local and national codes Main Unit Power Optional TBUE Wiring Through the Base Electrical Option 1 Location of the applicable electrical service is illustrated below Refer to the customer connection diagram that is shipped with the unit for specific termination points Th...

Страница 26: ...26 for AC conductor sizing guidelines and 1 Use copper conductors unless otherwise specified 2 Ensure that the AC control wiring between the controls and the unit s termination point does not exceed three 3 ohms conductor for the length of the run Note Resistance in excess of 3 ohms per conductor may cause component failure due to insufficient AC voltage supply 3 Be sure to check all loads and con...

Страница 27: ...es Table 4 Zone sensor module wiring Distance from Unit to Control Recommended Wire Size 0 150 feet 22 gauge 0 45 7 m 33 mm2 151 240 feet 20 gauge 46 73 1 m 50 mm2 241 385 feet 18 gauge 73 5 117 3 m 75 mm2 386 610 feet 16 gauge 117 7 185 9 m 1 3 mm2 611 970 feet 14 gauge 186 2 295 7 m 2 0 mm2 Figure 13 Reliatel refrigeration module ...

Страница 28: ...28 RT SVX25C EN Installation Figure 14 Reliatel conventional thermostat field wiring diagram Figure 15 ReliaTel relative humidity sensor dehumidification option RTRM ...

Страница 29: ...supplies Do not exceed ten smoke detectors on one power supply Note Multiple System Sensor smoke detectors are connected together using terminals 1 and 12 on each detector If you have supply and return smoke detectors in all HVAC units you can connect a maximum of 5 HVAC units 10 detectors up to one power supply See the following field wiring example If you have more than 5 HVAC units you can conn...

Страница 30: ...30 RT SVX25C EN Installation Figure 17 5 HVAC units 10 HVAC units ...

Страница 31: ...RT SVX25C EN 31 Installation Figure 18 Typical field wiring diagrams for optional controls ReliaTel only ...

Страница 32: ...h space temperature averaging Example 3 illustrates the circuit required for this senor Table 5 lists the temperature versus resistance coefficient for all sensing Table 5 Temperature vs resistance Degrees F Degrees C Nominal Resistance 20 28 9 170 1 K Ohms 15 26 1 143 5 K Ohms 10 23 3 121 4 K Ohms 5 20 6 103 0 K Ohms 0 17 8 87 56 K Ohms 5 15 0 74 65 K Ohms 10 12 2 63 80 K Ohms 15 9 4 54 66 K Ohms...

Страница 33: ...f termination accuracy Verify that the condenser airflow will be unobstructed Verify that the condenser fan and indoor blower turn freely without rubbing and are properly tightened on the shafts Check the supply fan belts for proper tension and the fan bearings for sufficient lubrication If the belts require adjustment or if the bearings need lubricating refer to the maintenance section of this ma...

Страница 34: ...mple If the voltage readings of the supply power measured 221 230 and 227 the average volts would be VD reading farthest from average 221 The percentage of Imbalance equals The 2 2 imbalance in this example exceeds the maximum allowable imbalance of 2 0 This much imbalance between phases can equal as much as a 20 current imbalance with a resulting increase in motor winding temperatures that will d...

Страница 35: ...or light will glow if the phase is ABC If the CBA indicator light glows open the disconnect switch or circuit protection switch and reverse any two power wires Restore the main electrical power and recheck the phasing If the phasing is correct open the disconnect switch or circuit protection switch and remove the phase sequence indicator Compressor Crankcase Heaters Each compressor can be equipped...

Страница 36: ... to the system The Liteport LED located on the RTRM module is turned On within one second of power up if internal operation is okay Use one of the following Test procedure 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 ...

Страница 37: ... resistance values to cycle the various components refer to Table 6 Verifying Proper Air Flow Units with Belt Drive Indoor Fan Much of the systems performance and reliability is closely associated with and dependent upon having the proper airflow supplied both to the space that is being conditioned and across the evaporator coil The indoor fan speed is changed by opening or closing the adjustable ...

Страница 38: ...ulley adjustment set screw and turn sheave counterclockwise If the required CFM is too high external static pressure is low causing motor HP output to be above table value change indoor fan speed and repeat steps 1 and 2 To stop the SERVICE TEST turn the main power disconnect switch to the Off position or proceed to the next component start up procedure Remove electro mechanical test mode connecti...

Страница 39: ...roked to the full open position 5 To stop the SERVICE TEST turn the main power disconnect switch to the Off position or proceed to the next component start up procedure Remove electro mechanical test mode connections if applicable Compressor Start Up 1 Attach a set of service gauges onto the suction and discharge gauge ports for each circuit Refer to the refrigerant circuit illustration in the Ser...

Страница 40: ...ressures Compare the operating pressures to the operating pressure curve in the Service Facts 3 Check system superheat Follow the instruction listed on the superheat charging curve in the Service Facts Superheat should be within 5 F of the superheat chart value 4 Repeat steps 1 through 4 for each refrigerant circuit 5 To stop the SERVICE TEST turn the main power disconnect switch to the Off positi...

Страница 41: ...tart up procedure for each compressor circuit Momentarily jump across the Test 1 Test 2 terminals on LTB one additional time if continuing from previous component start up or until the desired start up component Test is started 6 Verify that the heater stage is operating properly 7 To stop the SERVICE TEST turn the main power disconnect switch to the Off position or proceed to the next component s...

Страница 42: ... belt tension as follows 1 To determine the appropriate belt deflection a Measure the center to center shaft distance in inches between the fan and motor sheaves b Divide the distance measured in Step 1a by 64 the resulting value represents the amount of belt deflection that corresponds to the proper belt tension 2 Set the large O ring on the belt tension gauge at the deflection value determined i...

Страница 43: ... 7 0 4 5 5 6 7 8 4 1 4 5 1 4 B 3 4 4 2 4 5 5 3 4 8 4 1 2 5 1 2 4 4 5 6 5 1 8 7 1 8 6 1 2 9 1 8 5 3 4 7 1 4 5 8 8 8 6 3 8 8 7 3 8 10 1 8 7 8 3 4 Belts Cross Section Small P D Range mm Deflection Force kgs Super Gripbelts mm Gripnotch mm Steel Cable Gripbelts mm Min Max Min Max Min Max A 13 3 16 0 13 3 20 0 17 2 24 5 14 5 17 8 16 9 21 4 15 6 22 2 20 0 27 8 16 7 21 1 22 0 31 1 17 8 24 5 22 2 30 6 18 ...

Страница 44: ...to the appropriate section s of the smoke detector Installation and Maintenance Instructions provided with the literature package for this unit Cooling Season Check the unit s drain pans and condensate piping to ensure that there are no blockages Inspect the evaporator and condenser coils for dirt bent fins etc If the coils appear dirty clean them according to the instructions described in Coil Cl...

Страница 45: ...void damaging the coils To clean refrigerant coils use a soft brush and a sprayer either a garden pump up type or a high pressure sprayer A high quality detergent is also required suggested brands include SPREX A C OAKITE 161 OAKITE 166 and COILOX If the detergent selected is strongly alkaline ph value exceeds 8 5 add an inhibitor 1 Remove enough panels from the unit to gain access to the coil Rem...

Страница 46: ..._________________________________________________ ______________________________________________________________________ 3 Wiring Diagram Numbers from unit control pane schematic s ______________________________________________________________________ ______________________________________________________________________ ______________________________________________________________________ ______...

Страница 47: ...isch Press Psig kPa Liquid Press Psig kPa Super heat F C Sub cool F C Compr Oil Level Suct Press Psig kPa Disch Press Psig kPa Liquid Press Psig kPa Super heat F C Sub cool F C ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ...

Страница 48: ... 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 presence 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 Checkout Procedure check the following System stat...

Страница 49: ...ling failure LED 4 Service On indicates a clogged filter Off during normal operation Flashing indicates an evaporator fan failure Below is the complete listing of indication causes System Failure Check the voltage between terminals and 9 on J6 it should read approximately 32 VDC If no voltage is present a System failure has occurred Refer Step 4 in the previous section for the recommended troubles...

Страница 50: ...ates between 32 VDC 0 75 VDC Cool Failure Measure the voltage between terminals J6 8 J6 6 Cool Operating approximately 32 VDC Cool Off less than 1 VDC approximately 0 75 VDC Cooling Failure voltage alternates between 32 VDC 0 75 VDC Service Failure Measure the voltage between terminals J6 10 J6 6 Clogged Filter Approximately 32 VDC Normal Less than 1 VDC approximately 0 75 VDC Fan Failure voltage ...

Страница 51: ...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...

Страница 52: ...e drop of 1 5 to 2 5 volts depending on your meter Reverse bias will show an Over Load or open circuit indication if LED is functional Method 2 Testing the LED with an analog Ohmmeter Connect Ohmmeter across LED in one direction then reverse the leads for the opposite direction The LED should have at least 100 times more resistance in reverse direction as compared with the forward direction If hig...

Страница 53: ... turn the fan on the ZSM is defective ReliaTel Refrigeration Module RTRM Default Chart If the RTCI loses input from the buildingmanagement system the RTRM will control in the default mode after approximately 15 minutes If the RTRM loses the Heating and Cooling setpoint input the RTRM will control in the default mode instantaneously The temperature sensing thermistor in the Zone Sensor Module is th...

Страница 54: ...CA LED indicator OFF No Power or Failure ON Normal OK to Economize Slow Flash Normal Not OK to Economize Fast Flash 1 4 Second On 2 Seconds Off Error Code Communications Failure Pulse Flash 1 30 Second On 1 4 Second Off 2 Seconds between pulse sequences Error Code 1 Flash Actuator Fault 2 Flashes CO2 Sensor 3 Flashes RA Humidity Sensor 4 Flashes RA Temp Sensor 5 Flashes OA Quality Sensor 6 Flashes...

Страница 55: ...309 3127 Diagram Power Electrical TC 181 211 2309 3130 Diagram Power Electrical TC 180 210 2309 3131 Diagram Power Electrical TC 240 300 2309 3133 Diagram Power Electrical TC 180 210 2309 3134 Diagram Power Electrical TC 155 175 180 210 2309 3136 Electrical Schematic 208 230v Power Reliatel TC 240 241 300 301 2309 3137 Electrical Schematic 400 575v Power Reliatel TC 200 240 241 250 300 301 2309 31...

Страница 56: ...HTRPW54A AYHHTRQ454A AYHHTRQW54A 2309 3187 240v 60hz 3ph 36KW AYDHTRL336A AYHHTRM336A AYHHTRN336A AYHHTRP336A AYHHTRQ336A AYDHTRK336A 2309 3188 80V 600v 60hz 3ph 27 KW 36KW AYDHTRK436A AYDHTRKW36A AYDHTRL427A AYDHTRL436A AYDHTRL427A AYDHTRL436A AYDHTRK427A AYHHTRM436A AYHHTRN436A AYHHTRNW36A AYHHTRP436A AYHHTRQ436A AYHHTRQW36A 2309 3189 240v 60hz 3ph 18 KW AYHHTRM318A AYHHTRN318A AYDHTRK318A 2309 ...

Страница 57: ...v Power Reliatel WC 150 240 2309 3383 Electrical Schematic 400 575v Power Reliatel WC 150 240 2309 3384 Electrical Schematic 380v Power Reliatel YC 150 210 240 300 2309 3385 Electrical Schematic 380v Power Reliatel TC 150 210 240 300 2309 3386 Electrical Schematic 400 575v Power Reliatel YC 150 155 175 180 210 211 2309 3387 Electrical Schematic 208 230v Power Reliatel YC150 180 181 210 211 2309 33...

Страница 58: ...Gas Heat YC 300E 2313 0025 Connection Electrical 380V Cooling Gas Heat YC 180E 210E 240E 2313 0026 Connection Electrical 400 575V Cooling Mod Gas Heat YC 300E 301E 2313 0027 Connection Electrical 208 230V TC 241E 2313 0028 Connection Electrical 208 230V TC 151E 2313 0029 Connection Electrical 208 230V Cooling Gas Heat YC 241E 2313 0030 Connection Electrical 400 575V TC 151E 181E 2313 0032 Connecti...

Страница 59: ...E 2313 0064 Control Schematic 200 208 575V Micro Processor TC 150E 301E 2313 0066 Control Schematic 200 208 575V Micro Processor Dehumidification TC 151E 181E 241E 2313 0067 Control Schematic 200 208 575V Micro Processor YC 150E 301E 2313 0068 Control Schematic 200 208 575V Micro Processor Dehumidification YC 151E 181E 241E 2313 0069 Control Schematic 200 208 575V Micro Processor WC 150E 240E 2313...

Страница 60: ... not be obligated to pay for the cost of lost refrigerant No liability shall attach to Warrantor until products have been paid for and then liability shall be limited solely to the purchase price of the equipment under warranty shown to be defective THE WARRANTY AND LIABILITY SET FORTH HEREIN ARE IN LIEU OF ALL OTHER WARRANTIES AND LIABILITIES WHETHER IN CONTRACT OR IN NEGLIGENCE EXPRESS OR IMPLIE...

Страница 61: ......

Страница 62: ......

Страница 63: ...ipment or at the option of the Company parts therefore for all Company products not conforming to this warranty and which have been returned to the manufacturer The Company shall not be obligated to pay for the cost of lost refrigerant No liability whatever shall attach to the Company until said products have been paid for and then said liability shall be limited to the purchase price of the equip...

Страница 64: ...er RT SVX25C EN Date December 2008 Supersedes RT SVX25C EN July 2008 The manufacturer has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice ...

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