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19

RLC-SVX023B-GB

Installation - Mechanical

Cooling device bypass – Figure 3

Cooling device bypass is also a valid control method if the chiller temperature requirements can be maintained.

Advantage:

• Excellent control by maintaining constant water fl ow through the condenser.

Disadvantage:

• Higher cost because of the dedicated pump required for each chiller if condenser pressure is the control signal.

Figure 3

1

2A

3

4

4

CDS

EVP

5A

6

7

CO

CI

EO

EI

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Summary of Contents for CITY RTSF Series

Page 1: ...RLC SVX023B GB Water cooled Liquid Chillers with Helical Rotary Compressors RTSF 180 385kW R1234ze July 2020 Confidential and proprietaryTrane information Original instructions...

Page 2: ...8 Installation Mechanical 10 Installation Electrical 21 Operating Principles Mechanical 27 Typical Operating map 32 Controls TracerTD7 Operator Interface 33 Pre Start Checkout 34 Unit Start up 36 Per...

Page 3: ...hapter Installation Insure to do not exceed test pressure by using appropriate device 2 Disconnect all power supplies before any servicing on the unit 3 Service work on the refrigeration system and th...

Page 4: ...lass electronic expansion valve and charging valves on the RTSF The evaporator and condenser are manufactured in accordance with Pressure Equipment Directive standards The evaporator and the condenser...

Page 5: ...ator A B Evaporator B C Evaporator C D Evaporator D Digit 22 23 24 Not Used Digit 25 Evaporator Water side Pressure X 10 Bar Evaporator Water Pressure Digit 26 Evaporator application N Comfort Cooling...

Page 6: ...S Special test Digit 49 Installation Accessory X Without 1 Neoprene isolators 4 Neoprene pads Digit 50 Connection Accessory X Grooved pipe connection W Grooved pipe with coupling and pipe stub Digit 5...

Page 7: ...Type BPHE BPHE BPHE BPHE BPHE BPHE Evaporator model C B B A A A Evaporator Water Content volume l 52 59 69 92 92 92 Evap Water Flow rate Minimum 4 l s 3 6 4 8 4 8 6 4 6 4 6 4 Evap Water Flow rate Maxi...

Page 8: ...er outlet 9 Evaporator water inlet 13 External control wiring cable gland plate for customer wiring 14 Compressor 15 Discharge line 16 Unit nameplate on the side of starter control panel 17 EXV 18 Con...

Page 9: ...Supply and install refrigerant pressure relief piping from the pressure relief to the atmosphere Start the unit under supervision of a qualified service technician Where specified supply and insulate...

Page 10: ...Eliminators Provide rubber boot type isolators for all water piping at the unit Provide flexible conduit for electrical connections to the unit Isolate all pipe hangers and be sure they are not suppo...

Page 11: ...ped with the unit Figure 1 Handling YES NO 930 1042 Isolation Pads 1 The elastomeric pads shipped as standard are adequate for most installations For additional details on isolation practices consult...

Page 12: ...ng Water Connections is prohibited It is critical to keep the factory layout for water connections Therefore reversing water connections may lead to functional disorder NOTE Dimensions of tube stub fo...

Page 13: ...aporator damage do not exceed 10 bar evaporator water pressure for standard units To prevent heat exchangers damage install a strainer in the evaporator water inlet piping Condenser Piping Components...

Page 14: ...General guidelines for flow switch installation are outlined below Mount the switch upright with a minimum of 5 pipe diameters of straight horizontal run on each side Do not install close to elbows o...

Page 15: ...L s RTSF condensers Pressuredrop on waterside A B C D 1 10 100 1000 1 0 10 0 100 0 Pressure Drop kPa WaterFlow L s RTSF evaporators Pressuredrop on waterside A B C D Installation Mechanical RTSF cond...

Page 16: ...nd LWTC Low WaterTemperature Cutout control setpoints based on the concentration of the freeze inhibitor or solution freeze point temperature Avoid the use of very low or near minimum chilled fluid fl...

Page 17: ...20 6 15 0 17 1 17 9 14 3 38 21 8 20 6 15 0 18 8 19 6 15 0 40 23 8 20 6 15 0 20 7 20 6 15 0 42 25 9 20 6 15 0 22 6 20 6 15 0 44 28 1 20 6 15 0 24 8 20 6 15 0 45 29 3 20 6 15 0 25 9 20 6 15 0 46 30 5 2...

Page 18: ...ater temperature CAUTION In case of low evaporator leaving water temperature applications the non use of glycol on the condenser side may result in condenser plate freeze up Condenser Water Regulation...

Page 19: ...ethod if the chiller temperature requirements can be maintained Advantage Excellent control by maintaining constant water flow through the condenser Disadvantage Higher cost because of the dedicated p...

Page 20: ...ain the following settings and manual overrides for user adjustments and commissioning all under one tab Off State Output Command 0 10 Vdc 0 1 volt increments Default 2 0 Vdc Output Voltage Desired Mi...

Page 21: ...its which are equipped with variable frequency drive 0V DC before touching any internal components Failure to follow these instructions could result in death or serious injury For additional informati...

Page 22: ...cable bi material connecting devices are mandatory Cable routing inside control panel should be made case by case by installer Compressor Motor Phase Sequencing Always verify that proper rotation of t...

Page 23: ...C800 has an input that will accept a contact closure from a proof of flow device such as a flow switch The flow switch is to be wired in series with the chilled water pump starter s auxiliary contacts...

Page 24: ...seconds 20 minutes of the condenser pump relay energizing an automatically resetting diagnostic Condenser Water Flow Overdue shall be generated which terminates the prestart mode and denergizes the c...

Page 25: ...ating will go to the RUN UNLOAD operating mode and cycle off Unit operation will be inhibited Re closure of the contacts will permit the unit to automatically return to normal operation NOTE A panic s...

Page 26: ...e closed when ice building is in progress and open when ice building has been terminated by eitherTracer UC800 or the remote interlock It is used to signal the system changes required to convert to an...

Page 27: ...ive Refrigeration Cooling Cycle The refrigeration cycle of the chiller is conceptually similar to that of otherTrane chiller products It makes use of a BPHE evaporator The compressor is a twin rotor h...

Page 28: ...ously lubricant is injected into the compressor for two purposes 1 to lubricate the rolling element bearings and 2 to seal the very small clearances between the compressor s twin rotors Immediately fo...

Page 29: ...9 Electric expantion valve 10 Sight glass 11 Relief valve 12 Service valve 13 Oil service valve 14 Schraeder valve REFRIGERANT LINE OIL LINE CHILLED HEATED WATER LINE INSULATION PT Pressure transduce...

Page 30: ...e There is no physical contact between the rotors and compressor housing Oil is injected through adequate ports coating both rotors and the compressor housing interior Although this oil does provide r...

Page 31: ...oper lubrication and minimize refrigerant condensation in the oil sump heaters are mounted on the bottom of the oil sump An auxiliary contact of the compressor starter energizes these heaters during t...

Page 32: ...32 RLC SVX023B GB Figure 8 Typical operating map AOC Auxiliary Oil Cooler Typical Operating map...

Page 33: ...is specific information you need on a day to day basis like setpoints limits diagnostic information and reports Day to day operational information is presented at the display Logically organized grou...

Page 34: ...2 L3 in the starter to ensure that it has been installed in a A B C phase sequence 5 Fill the evaporator and condenser water circuit Vent the system while it is being filled Open the vents on the top...

Page 35: ...power on by closing the unit supply power fused disconnect switch 5 Read the phase sequence on the indicator The ABC LED of the phase indicator will glow WARNING It is imperative that L1 L2 and L3 in...

Page 36: ...eck the evaporator refrigerant pressure and the condenser refrigerant pressure under Refrigerant Report on theTD7 2 Check the EXV sight glasses after enough time has elapsed to stabilize the chiller T...

Page 37: ...r leakage Make any necessary repairs before starting the unit 6 While the water is circulating adjust the water flow and check the water pressure drops through the evaporator and condenser Refer to wa...

Page 38: ...emperature 1 to 3 C above that of leaving condenser water at full load Monthly Maintenance and Checks Review operating log Clean all water strainers in both the chilled and condensing water piping sys...

Page 39: ...stored in metal containers The oil will absorb water if stored in a plastic container Check the pressure drop across the oil filter Refer to Maintenance Procedures Contact a qualified service organiz...

Page 40: ...aned Thermometers installed in leaving entering water Flow switch installed and checked set Gauges installed in leaving entering water Throttling cock installed in leaving water Cooling water control...

Page 41: ...stem it will react with the oil to form acids UseTable 6 to determine the acceptability of the oil Trane approved oil is OIL0066E OIL0067E The proper charge amounts are given on General data Note Use...

Page 42: ...eatly However if the unit has run normal conditions for a long time the minimum and maximum oil levels should correspond to values shown in below table However excessive oil in the system will deterio...

Page 43: ...il wet or if it is not dry NOTE The remainder of the oil charge can be charged into the 1 4 service valve located at the bottom of the separator if a larger connection is preferred Replacing the Main...

Page 44: ...line after 2 5 minutes of operation GP2 RTWD Clean Filter Versus Recommended Filter Replacement Line CH530 RTWD Oil Pressure Protection Scheme Recommended replacing filter Clean Filter below this lin...

Page 45: ...e recovered refrigerant to charge the unit or give it to refrigerant producer for recycling or elimination Evacuation and Dehydration 1 Disconnect ALL power before during evacuation 2 Connect the vacu...

Page 46: ...xxx 3 x x x x xxx 4 x x x x xxx 5 x x x x x xxx 6 x x x x x xxx 7 x x x x x xxx 8 x x x x x xxx 9 x x x x x xxx 10 x x x x x xxx over 10 every year every year every year 2 x every year 3 every year 40...

Page 47: ...treatment This Service provides all of the necessary chemicals to properly treat each water system for the period designated The inspections will be conducted at agreed upon intervals andTrane Servic...

Page 48: ...ion please visit trane com or tranetechnologies com Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice We a...

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