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RTAD-SVX01F-E4

71

Unit Start-up Procedures

For Free Cooling units only:

At power up, the unit will choose
either if it should start in Free-
Cooling mode or in Compressor
mode through the Carel

TM

module:

• If only Free-Cooling is available,

then Free-Cooling mode will be
entered immediately at this time.

• If only Compressor mode is

available, then Compressor mode
will be entered immediately at this
time.

• If both modes are available, then

the mode to enter will depend on a
few conditions. If ( (Leaving Water
Temperature) - (Active Chilled
Water Setpoint) > 2 * (Dead band),
or if Free-Cooling coil cannot
generate more than 5% of its delta
T at current conditions, then the
Compressor mode will be entered
immediately. If these conditions are
false for at least 15 minutes, then
the Free-Cooling mode will be
entered immediately.

To allow the system to operate even
in case of failure on chiller or on free
cooling side, a menu allows the
service technician to choose
between the following modes:

❏

Auto mode: This is the default
mode. If enable by external Free-
Cooling Enable input (FCE), the
software will choose between
Free-Cooling mode or Compressor
mode. If disable by FCE, the
Compressor mode will always be
enabled. In auto mode the RTAD
Free-Cooling unit will always start-
up in Compressor mode and then
if conditions to pass in Free-
Cooling mode are verified for at
least 15 minutes, the Free-Cooling
mode will be enabled.

❏

Compressor mode only:
Compressor mode will always be
enabled.

❏

Free-cooling mode only: Free-
Cooling will always be enabled.
This will allow service on
compressor side of the unit.

WARNING! This menu will enable
function made by the software, but
service technician must remove all
power supply before servicing parts,
especially on moving dangerous
devices.

Daily Unit Start-Up

The time line for sequence of
operation is shown at the end of this
section and depicts the nominal
delays and sequences that a chiller
would experience during a typical
operational cycle. The time line
begins with a power up of the main
power to the chiller. The sequence
assumes a RTAD chiller with no
diagnostics or malfunctioning
components. External events such as
the operator placing the chiller in
Auto or Stop, chilled water flow
through the evaporator, and
application of load to the chilled
water loop causing loop water
temperature increases are depicted
and the chillers responses to those
events are shown, with appropriate
delays noted. The effects of
diagnostics, and other external
interlocks other than evaporator
water flow proving, are not
considered. The response of the CLD
Display is also depicted on the time
line.

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Содержание RTAD 085

Страница 1: ...Installation Operation Maintenance RTAD SVX01F E4 Series R Air Cooled Helical Rotary Liquid Chiller RTAD 085 180 50Hz Standard Free Cooling and Heat Recovery models...

Страница 2: ...t 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 recommen...

Страница 3: ...For this it is necessary to have a precise analysis made by a specialized laboratory If this condition is not respected the manufacturer warranty could be cancelled Maintenance contract It is strongl...

Страница 4: ...ilities 24 Nameplates 24 Storage 26 Location Requirements 26 Isolation and Sound Emission 26 Neoprene Isolator Installation 26 Noise Considerations 26 Foundation 27 Clearances 27 Drainage 28 Unit Wate...

Страница 5: ...t Lockout Circuit 1 and Circuit 2 54 Ice Making Option 55 External Chilled Water Setpoint CWS 55 External Current Limit Setpoint CLS 56 Outdoor AirTemperature Sensor 56 Communication Card CSR 57 Commu...

Страница 6: ...l Maintenance 75 Maintenance Procedures 76 Refrigerant Emission Control 76 Refrigerant and Oil Charge Management 77 R134a Field Charging Procedure 77 Refrigerant Charging 77 Isolating the Refrigerant...

Страница 7: ...ering and submittal information A typical unit nameplate is shown in Figure 1 Loose Parts Inventory Check all the accessories and loose parts which are shipped with the unit against the shipping list...

Страница 8: ...4317 5023 5108 Table 2 General Data RTAD High Efficiency Size 085 100 115 125 145 150 Compressor Quantity 2 2 2 2 2 2 Nominal Size 1 Tons 40 40 50 50 60 60 70 70 85 70 85 85 Evaporator Evaporator Mod...

Страница 9: ...5208 Table 4 General Data RTAD High Efficiency Low Noise Size 085 100 115 125 145 150 Compressor Quantity 2 2 2 2 2 2 Nominal Size 1 Tons 40 40 50 50 60 60 70 70 85 70 85 85 Evaporator Evaporator Mode...

Страница 10: ...5108 Table 6 General Data RTAD High Efficiency Low Noise with Night Noise Set Back option Size 085 100 115 125 145 150 Compressor Quantity 2 2 2 2 2 2 Nominal Size 1 Tons 40 40 50 50 60 60 70 70 85 70...

Страница 11: ...8 Table 8 General Data RTAD High Efficiency High External Static Pressure Size 085 100 115 125 145 150 Compressor Quantity 2 2 2 2 2 2 Nominal Size 1 Tons 40 40 50 50 60 60 70 70 85 70 85 85 Evaporato...

Страница 12: ...944 9517 11074 11261 Table 10 General Data RTAD High Efficiency Size 085 100 115 125 145 150 Compressor Quantity 2 2 2 2 2 2 Nominal Size 1 Tons 40 40 50 50 60 60 70 70 85 70 85 85 Evaporator Evaporat...

Страница 13: ...11294 11482 Table 12 General Data RTAD High Efficiency Low Noise Size 085 100 115 125 145 150 Compressor Quantity 2 2 2 2 2 2 Nominal Size 1 Tons 40 40 50 50 60 60 70 70 85 70 85 85 Evaporator Evapor...

Страница 14: ...11184 11261 Table 14 General Data RTAD High Efficiency Low Noise with with Night Noise Set Back option Size 085 100 115 125 145 150 Compressor Quantity 2 2 2 2 2 2 Nominal Size 1 Tons 40 40 50 50 60...

Страница 15: ...AD High Efficiency High External Static Pressure Size 085 100 115 125 145 150 Compressor Quantity 2 2 2 2 2 2 Nominal Size 1 Tons 40 40 50 50 60 60 70 70 85 70 85 85 Evaporator Evaporator Model EG140...

Страница 16: ...134a 2 2 2 2 2 2 2 2 Min Load 3 17 17 17 17 17 17 17 17 Weight Capacities Dimensions Refrigerant Charge 1 kg 24 24 30 32 35 36 36 37 44 48 44 48 61 59 61 61 Oil Charge 1 l 6 6 7 7 9 9 10 10 10 10 10 1...

Страница 17: ...W 1 7 0 85 1 7 0 85 1 7 0 85 1 7 0 85 1 7 0 85 1 7 0 85 C 18 18 18 18 18 18 General Unit Refrigerant HFC 134a HFC 134a HFC 134a HFC 134a HFC 134a HFC 134a 2 2 2 2 2 2 Min Load 3 17 17 17 17 17 17 Weig...

Страница 18: ...930 930 930 930 930 930 Motor kW kW 1 72 1 72 1 72 1 72 1 72 1 72 1 72 1 72 Min Starting Oper Ambient 2 PHR C 0 0 0 0 0 0 0 0 THR C 18 18 18 18 18 18 18 18 General Unit Refrigerant HFC 134a HFC 134a H...

Страница 19: ...0 31 2 35 0 39 0 44 9 46 8 Nominal Speed rpm 930 930 930 930 930 930 Motor kW kW 1 72 1 72 1 72 1 72 1 72 1 72 Min Starting Oper Ambient 2 PHR C 0 0 0 0 0 0 THR C 18 18 18 18 18 18 General Unit Refrig...

Страница 20: ...750 750 750 750 750 750 750 Motor kW kW 1 23 1 23 1 23 1 23 1 23 1 23 1 23 1 23 Min Starting Oper Ambient 2 PHR C 0 0 0 0 0 0 0 0 THR C 18 18 18 18 18 18 18 18 General Unit Refrigerant HFC 134a HFC 1...

Страница 21: ...750 750 750 750 750 Motor kW kW 1 23 1 23 1 23 1 23 1 23 1 23 Min Starting Oper Ambient 2 PHR C 0 0 0 0 0 0 THR C 18 18 18 18 18 18 General Unit Refrigerant HFC 134a HFC 134a HFC 134a HFC 134a HFC 13...

Страница 22: ...16 11 SIL 208 17 15 710 770 810 Hydraulic module addtional operating weight English units lbs Expansion vessel Pump type Pump model Without 50 litres 80 litres LRN 208 13 5 5 LRN 208 14 7 5 882 1014...

Страница 23: ...00 115 125 4426 2260 2095 1200 1000 1000 RTAD 145 150 5351 2260 2115 1200 1000 1000 RTAD 165 180 6370 2260 2215 1200 1000 1000 RTAD 085 100 HE 4426 2260 2095 1200 1000 1000 RTAD 115 125 HE 5351 2260 2...

Страница 24: ...to the top of the evaporator shell Furnish and install strainers ahead of all pumps and automatic modulating valves Provide and install field wiring Install heat tape and insulate the chilled water l...

Страница 25: ...940 RTAD 085 100 HE 4000 2400 4426 2215 2260 3405 3845 RTAD 115 125 HE 4000 2400 5351 2215 2260 4080 4630 RTAD 145 150 HE 4000 2400 6370 2215 2260 5340 5850 Total Heat Recovery RTAD 100 4000 2400 4426...

Страница 26: ...ighten the isolator mounting bolts at this time 2 Align the mounting holes in the base of the unit with the threaded positioning pins on the top of the isolators 3 Lower the unit onto the isolators an...

Страница 27: ...Provide sufficient clearance for the opening of control panel doors In all cases local codes which require additional clearances will take precedence over these recommendations Unobstructed flow of co...

Страница 28: ...ater temperatures Install a balancing valve in the leaving water line to control water flow balance Install shutoff valves on both the entering and leaving water lines so that the evaporator can be is...

Страница 29: ...o determine how and or if a flow sensing device will provide desired operation Follow the manufacturer s recommendations for selection and installation procedures General guidelines for flow switch in...

Страница 30: ...ion and in the establishment of a proper water treatment program Using untreated or improperly treated water in these units may result in inefficient operation and possible tube damage Consult a quali...

Страница 31: ...E Single pump available static pressure 1 LRN 208 13 5 5 2 LRN 208 14 7 5 3 SIL 208 16 11 4 SIL 208 17 15 Figure 6 RTAD 115HE 125HE 145SE 150SE Dual pump available static pressure 1 JRN 208 13 5 5 2 J...

Страница 32: ...180SE Single Pump Available Static Pressure 1 LRN 208 13 5 5 2 LRN 208 14 7 5 3 SIL 208 16 11 4 SIL 208 17 15 Figure 8 RTAD 145HE 150HE 165SE 180SE Dual pump Available static pressure 1 JRN 208 13 5 5...

Страница 33: ...25HE 145SE 150SE Pump Capacity Curve Single Pump 1 LRN 208 13 5 5 2 LRN 208 14 7 5 3 SIL 208 16 11 4 SIL 208 17 15 Figure 10 RTAD 115HE 125HE 145SE 150SE Pump Capacity Curve Dual Pump 1 LRN 208 13 5 5...

Страница 34: ...Curve Single Pump 1 JRN 208 13 5 5 2 JRN 208 14 7 5 3 DIL 208 16 11 4 DIL 208 17 15 Figure 12 RTAD 145HE 150HE 165SE 180SE Pump Current Curve Dual Pump 1 JRN 208 13 5 5 2 JRN 208 14 7 5 3 DIL 208 16 1...

Страница 35: ...ater Pressure Drop RTAD Free Cooling Compressor Mode Figure 14 Water Pressure Drop RTAD Free Cooling Free Cooling Mode 1 085 STD 2 085 HE 100 STD 3 100 HE 115 STD 4 115 HE 125 HE 145 STD 150 STD 5 125...

Страница 36: ...15 Condenser Water Pressure Drop RTAD Partial Heat Recovery Heating Mode 1 085 100 2 115 125 3 145 150 4 165 180 Figure 16 Condenser Water Pressure Drop RTAD Total Heat Recovery Heating Mode 1 085 10...

Страница 37: ...r typical RTAD Standard and Heat Recovery evaporator without hydraulic module 1 Gate valve 2 Water strainer 3 Thermometer user option 4 Vibration eliminator 5 Relief valve 6 Valved pressure gauge 7 Ve...

Страница 38: ...er user option 4 Vibration eliminator 5 Relief valve 6 Valved pressure gauge 7 Vent 8 Drain 9 Flow switch chilled water flow 10 Balancing valve 1 Gate valve 2 Water strainer 3 Thermometer user option...

Страница 39: ...1 Gate valve 2 Water strainer 3 Thermometer user option 4 Vibration eliminator 5 Relief valve 6 Valved pressure gauge 7 Vent 8 Drain 9 Flow switch warm water flow 10 Balancing valve 11 Clean out tee...

Страница 40: ...r typical RTAD THR without 3 way valve A Trane supplied without 3 way valve option 1 Gate valve 2 Water strainer 3 Thermometer user option 4 Vibration eliminator 5 Relief valve 6 Valved pressure gauge...

Страница 41: ...aulic module and dual pump To protect the chiller against freezing there are 5 means of protection Using the proper glycol percentage in the water no risk of damage due to power failure Draining the u...

Страница 42: ...er type of fluid please contact your localTrane sales engineer A relief valve is located at pump suction limiting water circuit pressure at 4 bar Nitrogen pressure inside of the expansion tank must be...

Страница 43: ...See the unit order specifications for actual electrical data Specific electrical schematics and connection diagrams are shipped with the unit Figure 24 Warning Label CAUTION To avoid corrosion and ov...

Страница 44: ...270 294 0 88 400 6 x 160 0 217 115 1 311 347 0 89 400 6 x 200 0 217 125 1 375 413 0 90 500 6 x 250 0 217 145 1 419 453 0 90 500 6 x 250 0 217 150 1 457 482 0 89 630 6 x 250 0 217 165 1 505 548 0 89 63...

Страница 45: ...2 05 4 5 3 x 50 1600 4 125 2 135 135 178 178 259 259 10 2 05 4 5 3 x 50 1600 4 145 2 162 135 214 178 291 259 11 2 05 4 5 3 x 63 1600 4 150 2 162 162 214 214 291 291 12 2 05 4 5 3 x 63 1600 4 Standard...

Страница 46: ...600 4 115 2 111 111 146 146 217 217 8 2 21 3 9 3 x 50 1600 4 125 2 135 135 178 178 259 259 8 2 21 3 9 3 x 50 1600 4 145 2 162 135 214 178 291 259 10 2 21 3 9 3 x 63 1600 4 150 2 162 162 214 214 291 29...

Страница 47: ...5 FC STD 315 250 630 2 x 150 2 x 300 RTAD 180 FC STD 6 x 315 630 2 x 150 2 x 300 RTAD 085 FC HE 6 x 125 250 95 150 RTAD 100 FC HE 6 x 160 400 185 240 RTAD 115 FC HE 6 x 200 400 185 240 RTAD 125 FC HE...

Страница 48: ...ory connected for 400V 3 50 with a factory installed control power transformer Heater Power Supply The evaporator shell is insulated from ambient air and protected from freezing temperatures by electr...

Страница 49: ...iate an automatic reset diagnostic 1 External Auto Stop terminals A1TB3 3 and 4 This input is supplied by the field A contact closure will start the chiller water pump and chiller via the UCM CLD pump...

Страница 50: ...en the external Auto Stop contacts are closed When the contacts are opened 1 to 30 minutes later adjustable through the Clear Language Display the UCM CLD and A70 pump control contacts open 3 Proof of...

Страница 51: ...rotect the operation of the chiller when the return hot water temperature is too low This 3 way valve will not be used if a variable speed pump is used In this case the control module for Heat Recover...

Страница 52: ...re three relays Notes For Free Cooling units a programmable relay output terminals A70 J17 C12 NO12 and NC12 is available It provides a normally close contact Following functions are available A70 rea...

Страница 53: ...rcuit 2 running Table 35 Alarm Running Maximum capacity menu setting 1 1 YES NO NO 2 1 YES YES NO 3 1 YES YES YES 4 1 YES NO YES 5 2 YES NO NO 6 2 YES YES NO 7 2 YES YES YES 8 2 YES NO YES 9 3 YES NO...

Страница 54: ...4VDC for a 12 mA resistive load Refer to the field diagrams that are shipped with the unit External circuit lockout Circuit 1 The UCM provides auxiliary control of a customer specified or installed co...

Страница 55: ...rnal chilled water setpoint voltage source 2 10 V dc or current source 4 20 mA This option allows the external setting of the chilled water setpoint CWS independent of the front panel chilled water se...

Страница 56: ...from module A9TB1 All wiring to and from the remote sensor must be made with shielded twisted pair conductors Be sure to ground the shielding only at the UCM CLD Apply tape to the sensor end of the sh...

Страница 57: ...on the communication link can be connected in a daisy chain configuration Communication link connection procedure 1 Refer to theTracer installation literature to determine proper communication link te...

Страница 58: ...r temperature has priority over a locally wired input to the controller Example if the LCI C controller has a wired outdoor air temperature sensor andTracer Summit or another LonTalk controller sends...

Страница 59: ...ype of data item can be changed and controlled network variable output nvo A controller s output data item that enables it to exchange data values with other devices on the LonTalk network This type o...

Страница 60: ...hlr_status 127 32 nviRequest SNVT_obj_request 92 33 nvoStatus SNVT_obj_status 93 Index Network Variable SNVT Type 34 nviTraneVar2 UNVT 35 nvoTraneVar9 UNVT 36 nvoStatusOutputs SNVT_state 83 37 nvoCprs...

Страница 61: ...its 0 7 MSB Validity of bits 8 15 1 Valid Bit 8 Refrigeration Circuit On 1 Bit 9 Pumping Out 1 Bit 10 Regenerating 1 Bits 11 15 LSB Not Used SNVT_time_f Byte 1 2 LSB UNVT_starts_runtime Structure defi...

Страница 62: ...difluoromethane Pentafluoro ethane Propane 27 RT_R403B R 403B Chlorodifluoromethane Octafluoro propane Propane 28 RT_R404A R 404A Pentafluoroethane Trifluoroethane Tetrafluoroethane 29 RT_R406A R 406A...

Страница 63: ...8 bit 1 0 3 number of compressors on circuit 2 Total length 9 Enumeration definitions for UCPT_chiller_type Enumeration um n Trane chiller model designators 0 RTA 1 CVH 2 CVG 3 CVR 4 CDH 5 RTH 6 CGW...

Страница 64: ...W Chilled water WW Warm water 1 Screw compressor 2 Evaporator 3 Air cooled condenser 4 Evaporator water inlet connection 5 Evaporator water outlet connection 6 Oil service valve 7 Oil separator 8 Disc...

Страница 65: ...vaporator water inlet connection 5 Evaporator water outlet connection 6 Oil service valve 7 Oil separator 8 Discharge service valve 9 Liquid shutoff valve 10 Filter drier 11 Electric expansion valve 1...

Страница 66: ...Liquid shutoff valve 10 Filter drier 11 Electric expansion valve 12 Relief valve 13 Service valve 14 3 way valve PI Gauge PT Pressure transducer PSH High pressure relief valve PSL Low pressure relief...

Страница 67: ...ry heat tapes Connect the auxiliary contact of the chilled water pump 6K51 in series with the flow switch if installed and then connect to the proper terminals For the External Auto Stop function inst...

Страница 68: ...edure with power applied Failure to do so can result in personal injury or death 10 Reapply power to complete procedures 11 Prove all Interlock and Interconnecting Wiring Interlock and External as des...

Страница 69: ...essors be established before the unit is started Proper motor rotation requires confirmation of the electrical phase sequence of the power supply The motor is internally connected for clockwise rotati...

Страница 70: ...and switch two line leads on the line power terminal block s or the unit mounted disconnect Reclose the main power disconnect and recheck the phasing CAUTION Do not interchange any load leads that are...

Страница 71: ...ode the RTAD Free Cooling unit will always start up in Compressor mode and then if conditions to pass in Free Cooling mode are verified for at least 15 minutes the Free Cooling mode will be enabled Co...

Страница 72: ...e unit running add refrigerant vapor by connecting the charging line to the suction charging service valve port until operating conditions become normal CAUTION If both suction and discharge pressures...

Страница 73: ...Restart After Extended Shutdown Follow the procedures below to restart the unit after extended shutdown 1 Verify that the liquid line service valves oil line compressor discharge service valves when s...

Страница 74: ...is to be followed if the system is to be taken out of service for an extended period of time e g seasonal shutdown 1Test the unit for refrigerant leaks and repair as necessary 2 Open the electrical d...

Страница 75: ...lified service organization to leak test the chiller to check operating and safety controls and to inspect electrical components for deficiencies 5 Inspect all piping components for leakage and damage...

Страница 76: ...e work such as gauges hoses vacuum pumps and recycling equipment 7 Stay aware of unit enhancements conversion refrigerants compatible parts and manufacturer s recommendations which will reduce refrige...

Страница 77: ...rations in evaporator R134a Field Charging Procedure Be certain that the electrical power to the unit is disconnected before performing this procedure WARNING Position all electrical disconnects in th...

Страница 78: ...ce valve mounted on the suction line This will transfer the liquid refrigerant As the low pressure side cannot contain all the charge the remaining refrigerant will be transferred to a separate vessel...

Страница 79: ...valve on oil cooler liquid line 2 Attach vacuum hose to service port on liquid line filter flange 3 Evacuate refrigerant from liquid line and store 4 Remove vacuum hose 5 Depress schrader valve to eq...

Страница 80: ...ith flare service connection Oil filter internal to compressor with flare fitting service connection and schrader valve Oil flow control valve internal to the compressor after the filter The standard...

Страница 81: ...has had all of the oil removed 1 Add 1 liter oil to the motor cavity or suction line prior to installing the compressor into the chiller 2The oil line shutoff valve must be open to allow the oil to pa...

Страница 82: ...il forces these gases out of the filter and oil line shut off valve without the need to pull a vacuum on this small volume If the oil has been in an open container or is otherwise contaminated then th...

Страница 83: ...ion around the heater 2 Remove the old heater 3The factory installed heaters have the wire run under the insulation of the evaporator This can be copied by cutting a small strip of insulation out and...

Страница 84: ...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 www tra...

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