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11

Figure 3-2B

EVPB-C80 Evaporator Chiller Dimensions

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Содержание RAUC-IOM-15

Страница 1: ...nance Library Service Literature Product Section Unitary Product Split System Air Conditioning 80 120 Tons Model RAUC Literature Type Installation Operation Maintenance Sequence 15 Date March 2006 Fil...

Страница 2: ...the unit s maintenance personnel This booklet describes proper installation operation and maintenance procedures for air cooled systems By care fully reviewing the information within this manual and f...

Страница 3: ...wer Wiring 28 Main Unit Power Wiring 28 Power Wire Sizing and Protection Device Equations 29 Field Installed Control Wiring 31 Controls Using 115 VAC 31 Controls using 24 VAC 31 Controls using DC Anal...

Страница 4: ...viewing Sample Model No RAUC C80 4 A B 1 1 2 H B 3 etc Digit No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Digit 1 Unit Type Digit 8 Power Supply Digit 12 Agency Approval R Remote Condensing Unit E 200 60 3 XL...

Страница 5: ...d option These units may be order with one of the following options No System Controls Field provided controls required Supply Air Temperature Control VAV applications EVP Chiller Controls Basic unit...

Страница 6: ...arrel must be installed level and should be mounted on a base that will adequately support the operat ing weight Refer to Table 3 1B for operating weights Unit Inspection As soon as the unit arrives a...

Страница 7: ...7 Installation Continued Figure 3 1 Typical Installation Clearances for Single Multiple or Pit Applications...

Страница 8: ...8 Figure 3 2A RAUC C80 Unit Dimensional Data Recommended Clearances...

Страница 9: ...9 Figure 3 2A Continued RAUC D10 Unit Dimensional Data Recommended Clearances...

Страница 10: ...10 Figure 3 2A Continued RAUC D12 Unit Dimensional Data Recommended Clearances...

Страница 11: ...11 Figure 3 2B EVPB C80 Evaporator Chiller Dimensions...

Страница 12: ...12 Figure 3 2B Continued EVPB D10 Evaporator Chiller Dimensions...

Страница 13: ...13 Figure 3 2B Continued EVPB D12 Evaporator Chiller Dimensions...

Страница 14: ...14 Figure 3 2B Continued EVPB C80 through D12 Chill Water Pipe Stubout Dimensions...

Страница 15: ...2 35 0 33 4 95 120 Ton 1 150 1 535 2 47 9 40 4 95 Refrigerant change is approximate and for the evaporator chiller only Tube Pull given is the length of the evaporator Figure 3 3 Rigging and Center o...

Страница 16: ...side at a time to allow access to the base rail mounting holes Note Use solid type blocks i e 4 X 4 wood blocks or similar material to prevent collapsing Keep hands and other body limbs clear of elev...

Страница 17: ...4 for proper clearance Leveling the Unit Before tightening the mounting bolts level the unit carefully Use the unit base rail as a reference Level the unit to within 1 4 inch over its entire length U...

Страница 18: ...ubber isolators The assembly is held in place by six 6 shipping Tiedown bolts To remove the shipping hardware follow the procedures below 1 At each Tiedown location 3 front and 3 rear remove and disca...

Страница 19: ...the system Refer to the Refrigerant Piping section for recommended procedures EVP Chilled Water Piping Requirements Install properly sized chilled water pipe between the EVP chiller and the supporting...

Страница 20: ...te panel Install and connect properly sized control wiring to the proper termination points between the remote panel and the unit control panel Install proper grounding wires to an earth ground Instal...

Страница 21: ...ary on comfort cooling VAV systems and is only required on CV systems when dehumidification is a concern Refer to the Solenoid Valve Moisture Indicator Sight Glass Table for recommendations Thermostat...

Страница 22: ...lves 4 Interconnecting Liquid Line Tubing If risers exceed 10 feet Trane must review the applica tion 5 Shutoff valves Manual ball valves 6 Access Ports 7 Liquid Line Filter Drier 8 Solenoid Valve 9 M...

Страница 23: ...valve throughout the unit s operating envelope Increasing the liquid line size does not increase the available sub cool ing The uniform liquid line size pre selected in the Table below are independen...

Страница 24: ...The compressor is allowed to operate when the coil temperature rises a few degrees above the frosting condition This action reduces the over all energy consumption of the system while reliably main ta...

Страница 25: ...ove the lou vered side grills Refer to Figure 3 2 These condensing units are shipped with a Nitrogen hold ing charge Install pressure gauges to the appropriate ac cess valve s and take a reading If no...

Страница 26: ...en the liquid line service valve and the compressor discharge service valve the tubing during brazing sweep an inert gas such as dry nitrogen through the tubing Nitrogen displaces air in the tubing an...

Страница 27: ...g water pipe Both devices are shipped inside the unit s shipwith location Thermal paste must be used when installing the sensor into the sensor well Refer to Figure 3 2B for the sensor location and di...

Страница 28: ...follow the guidelines outlined below Note All field installed wiring must conform to NEC guidelines as well as State and Local codes Verify that the power supply available is compatible with the unit...

Страница 29: ...nded Dual Element fuse size for each unit Use Calculation 2 to determine the DSS Discon nect Switch Size for each unit Load Definitions LOAD 1 CURRENT OF THE LARGEST MOTOR COMPRESSOR OR FAN MOTOR LOAD...

Страница 30: ...cs Condenser Fan Motor RLA RLA LRA LRA Kw Kw No Ea Ea Ea Ea Ea Ea 10 15 10 Ton 15 Ton 10 Ton 15 Ton 10 Ton 15 Ton 41 4 60 5 269 0 409 0 10 99 16 48 2 4 41 4 60 5 251 0 376 0 10 99 16 48 18 1 26 3 117...

Страница 31: ...ing Before installing any connecting wiring refer to Figure 3 2 for the electrical access locations provided on the unit In stall appropriately sized control wiring for the 115 volt elec trical compon...

Страница 32: ...gnals in or around conduit housing high voltage wires Table 3 7 DC Conductors Distance from Unit Recommended to Control Wire Size 000 499 feet 16 gauge 500 1000 feet 14 gauge Economizer Actuator Circu...

Страница 33: ...ays wired into each step of cool ing The Fixed Off timers are 5 minutes each and they be gin timing when the circuit for that step of cooling is deacti vated The Fixed On timers are 3 minutes each and...

Страница 34: ...34 Installation Continued Figure 3 11B Field Connection Diagram for RAUC D10 D12 No System Controls Application Refer to Wiring Notes on page 35...

Страница 35: ...35 Installation Continued Field Connection Diagram Notes for all System Control Options...

Страница 36: ...supply air temperature and the supply air temperature setpoint Before installing any connecting wiring refer to Figure 3 2 for the electrical access locations provided on the unit Wire the sensor in...

Страница 37: ...37 Installation Continued Figure 3 13A Field Connection Diagram for RAUC C80 Variable Air Volume Applications Refer to Wiring Notes on Page 35 Diagram continued on next page...

Страница 38: ...38 Installation Continued Figure 3 13B Field Connection Diagram for RAUC D10 D12 Variable Air Volume Applications Refer to Wiring Notes on Page 35...

Страница 39: ...ohm resistive jumper is installed across Terminals 7 8 on the controller The 604 ohm resistive jumper is required for six 6 stage operation on 80 through 120 Ton units Note The resistor portion of th...

Страница 40: ...40 Installation Continued Figure 3 14A Field Connection Diagram for RAUC C80 EVP Chiller Applications Refer to Wiring Notes on page 35 Diagram continued on next page...

Страница 41: ...41 Installation Continued Figure 3 14B Field Connection Diagram for RAUC D10 D12 EVP Chiller Applications Refer to Wiring Notes on page 35...

Страница 42: ...pe vacuum pump capable of pulling a vacuum of 100 mi crons or less Verify that the unit disconnect switch and the system control circuit switches are OFF The oil in the vacuum pump should be changed e...

Страница 43: ...than 200 microns but levels off to a constant value excessive moisture is present If the pressure steadily continues to rise a leak is indicated Figure 4 2 illustrates three possible results of the s...

Страница 44: ...orm electrocution it is the responsibility of the technician to recognize this hazard and use extreme care when performing ser vice procedures with the electrical power energized After approximately 2...

Страница 45: ...nsor Checkout Honeywell Sensor 1 Verify that the main power disconnect switch and the control circuit switch 1S2 in the unit control panel is OFF 2 At the Discharge Air Controller in the unit control...

Страница 46: ...R D O U S V O LTA G E R O T A T I N G P A R T S UNIT STARTS AUTOMATICALLY Make sure all personnel are standing clear of the unit before proceeding The system components will start when the power is a...

Страница 47: ...resistor from Terminals 6 7 and reinstall the wire jumper removed in step 6 15 Set the Setpoint F dial at 50o F within 15 seconds the LEDs should turn On as the cooling outputs stage On 16 Turn the co...

Страница 48: ...the unit by using an instrument such as an Associated Research Model 45 Phase Se quence Indicator and following the steps below Turn the field supplied disconnect switch that provides power to termin...

Страница 49: ...response time of the controller The greater the amount of deviation between the discharge air temperature and the economizer control point i e as the temperature strays fur ther from the control poin...

Страница 50: ...e control band When the temperature increases above the upper control band limit Point D mechanical cooling stages will be se quenced On in the same manner as before As a rule any time the water tempe...

Страница 51: ...5 m p h a wind screen around the unit may be required By restricting the airflow across the condenser coils saturated condensing temperatures can be maintained as the ambient tempera tures change The...

Страница 52: ...disconnect switch and turn the pump control circuit switch 6S1 On Check the flow device to ensure it opens and close prop erly With water circulating through the system check the EVP chiller barrel p...

Страница 53: ...ch circuit is back seated COMPRESSOR SERVICE VALVES COMPRESSOR SERVICE VALVES MUST BE FULLY OPENED BEFORE START UP SUCTION DIS CHARGE LIQUID LINE AND OIL LINE Failure to fully open valves prior to sta...

Страница 54: ...ponding saturated vapor temperature Note On many Trane fan coil units an access valve is provided close to the expansion valve bulb location This valve must be added on climate changers and other evap...

Страница 55: ...ompleted check and record the ambient temperature compressor oil level each circuit compressor suction and discharge pressures each circuit superheat and sub cooling each circuit Record this data on a...

Страница 56: ...00 On On On 100 100 1 Off Off On On 40 Off Off Off Off 0 20 2 Off Off On On 40 Off Off On On 40 40 100 Ton 3 Off On On On 70 Off Off On On 40 55 4 Off On On On 70 Off On On On 70 70 5 On On On On 100...

Страница 57: ...57 Figure 5 5 Typical Scroll Compressor Terminal Block System Start Up Continued...

Страница 58: ...left for the discharge pressure The measured discharge pressure should be within 7 psig of the graph 115 F OD Ambient 100 Ton Pressure Curve for each Circuit COOLING CYCLE PRESSURE CURVE Based on Ind...

Страница 59: ...rge pressure should be within 7 psig of the graph 115 F OD Ambient Final System Setup After completing the Pre start and Start up procedures out lined in the previous sections perform these final chec...

Страница 60: ...ry setting 6 steps Setpoint Freeze Protection 35 F Contact Trane for alternate Setpoint settings Load Limit Cut In 64 F Setpoint Cut Out 56 F Low Pressure Cut In 60 PSIG Lockout Cut Out 45 PSIG No Con...

Страница 61: ...roper oil return to each compressors The refrig erant manifolded system must not be modified in any way Note Altering the manifold piping may cause oil return problems and compressor failure Should a...

Страница 62: ...e motor as necessary Check the fan shaft bearings for wear Replace the bear ings as necessary Lubricate the supply fan bearings Refer to the equip ment manufacturer for their recommended greases Note...

Страница 63: ...he cleaning solution into the sprayer If a high pres sure sprayer is used a do not allow sprayer pressure to exceed 600 psi b the minimum nozzle spray angle is 15 degrees c maintain a minimum clearanc...

Страница 64: ...ensor Assembly 36 See Figure 3 12 E Economizer Actuator Circuit Legend 32 Economizer Cycle 49 Electrical Service Sizing Data 30 See Table 3 5 electronic micron vacuum gauge 42 Evacuate the system 42 E...

Страница 65: ...0A Staging Sequence 49 See Figure 5 1 W7900 Chilled Water Controller 47 See Figure 4 4 W7900 Controller Diagnostics 50 See Figure 5 2 Warnings 4 M Maintenance Log 60 See Table 5 9 Maximum allowable pr...

Страница 66: ...t 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...

Страница 67: ...67...

Страница 68: ...68...

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