CONDENSER FREEZE POINT
, then the
CONDENSER WATER PUMP
shall be energized
until the
CONDENSER REFRIG TEMP
is greater than the
CONDENSER FREEZE POINT
plus
5° F (2.7° C). An alarm will be generated if the machine is in
PUMPDOWN
mode and the pump
is energized. An alert will be generated if the machine is not in
PUMPDOWN
mode and the
pump is energized. If in recycle shutdown, the mode shall transition to a non-recycle shutdown.
Tower-Fan Relay
This control can be used to assist the condenser water temperature control system (field
supplied). Low condenser water temperature can cause the chiller to shut down on low
refrigerant temperature. The tower fan relay, located in the starter, is controlled by the PIC to
energize and deenergize as the pressure differential between cooler and condenser vessels
changes in order to prevent low condenser water temperature and to maximize machine
efficiency. The tower-fan relay can only accomplish this if the relay has been added to the
cooling tower temperature controller. The
TOWER FAN RELAY
is turned on whenever the
CONDENSER WATER PUMP
is running, flow is verified, and the difference between cooler
and condenser pressure is more than 30 psid (207 kPad) or entering condenser water
temperature is greater than 85 F (29 C). The
TOWER FAN RELAY
is deenergized when the
condenser pump is off, flow is lost, the evaporator refrigerant temperature is less than the
override temperature, or the differential pressure is less than 28 psid (193 kPad) and entering
condensing water is less than 80 F (27 C).
Содержание 17/19EX
Страница 346: ...Figure 1 17 19EX Identification ...
Страница 347: ...Figure 2 Typical 17EX Installation ...
Страница 348: ...Figure 3 Typical 19EX Installation ...
Страница 349: ...Figure 4 Refrigerant Motor Cooling and Oil Cooling Cycles ...
Страница 350: ...v Figure 5 Hermetic Compressor Lubrication System EX Compressor Shown ...
Страница 351: ...Figure 6 Open Drive 17 Series Lubrication Cycle ...
Страница 352: ...Figure 7 17EX Controls and Sensor Locations Figure 7 continued on next page Machine Rear Compressor Side View ...
Страница 353: ...Compressor End View Figure 7 17EX Controls and Sensor Locations Figure 7 continued on next page ...
Страница 354: ...Machine Front View Figure 7 17EX Controls and Sensor Locations Figure 7 continued on next page ...
Страница 355: ...Motor End View Figure 7 17EX Controls and Sensor Locations Figure 7 continued on next page ...
Страница 356: ...Figure 7 17EX Controls and Sensor Locations ...
Страница 357: ...Machine Rear Compressor Side View Figure 8 19EX Controls and Sensor Locations Figure 8 continued on next page ...
Страница 358: ...Compressor End View Figure 8 19EX Controls and Sensor Locations Figure 8 continued on next page ...
Страница 359: ...Machine Rear View Figure 8 19EX Controls and Sensor Locations Figure 8 continued on next page ...
Страница 360: ...Motor End View Figure 8 19EX Controls and Sensor Locations Figure 8 continued on next page ...
Страница 361: ...Figure 8 19EX Controls and Sensor Locations ...
Страница 362: ...Figure 9 Control Center Front View Shown with Options Module ...
Страница 363: ...Figure 10 Control Sensors Temperature ...
Страница 364: ...Figure 11 Control Sensors Pressure Transducer Typical ...
Страница 365: ...Figure 12 Power Panel without Options Open Drive Machine Shown ...
Страница 366: ...Figure 13 Power Panel with Options Hermetic Machine Shown ...
Страница 367: ...Figure 14 LID Default Screen ...
Страница 368: ...Figure 15 LID Service Screen ...
Страница 369: ...Figure 16 17 19EX Menu Structure ...
Страница 370: ...Figure 17 17 19EX Service Menu Structure ...
Страница 371: ...Figure 18 Example of Point Status Screen Status01 ...
Страница 372: ...Figure 19 Example of Time Schedule Operation Screen ...
Страница 373: ...Figure 20 Example of Set Point Screen ...
Страница 374: ...Figure 21 17 19EX Hot Gas Bypass Surge Prevention ...
Страница 375: ...Figure 22 17 19EX with Default Metric Settings ...
Страница 376: ...Figure 23 Example of Attach to Network Device Screen ...
Страница 377: ...Figure 24 Example of Holiday Period Screen ...
Страница 378: ...Figure 25 Control Sequence ...
Страница 379: ...Figure 26 Typical Wet Bulb Type Vacuum Indicator ...
Страница 380: ...Figure 27 Shipping Bolt on Open Drive Motor ...
Страница 381: ...Figure 28 17 19EX Leak Test Procedures ...
Страница 382: ...Figure 29 Dehydration Cold Trap ...
Страница 383: ...Figure 30 Correct Motor Rotation ...
Страница 384: ...Figure 31 Refrigeration Log ...
Страница 385: ...Figure 32 Pumpout Arrangement and Valve Number Locations 12 ft Vessel Shown Figure 32 continued on next page ...
Страница 386: ...Figure 32 Pumpout Arrangement and Valve Number Locations 12 ft Vessel Shown Continued ...
Страница 387: ...Figure 33 Pumpout Unit Wiring Schematic 19EX Shown ...
Страница 388: ...Figure 34 Optional Pumpout Compressor ...
Страница 389: ...Figure 35 Electronic Vane Actuator Linkage ...
Страница 390: ...Figure 36 Compressor Contact Seal Open Drive Machines ...
Страница 391: ...Figure 37 Checking Preliminary Alignment ...
Страница 392: ...Figure 38 Measuring Angular Misalignment in Elevation ...
Страница 393: ...Figure 39 Measuring Angular Misalignment on Brackets ...
Страница 394: ...Figure 40 Alignment Formula ...
Страница 395: ...Figure 41 Adjusting Angular Misalignment in Plan ...
Страница 396: ...Preparation Figure 42 Correcting Parallel Misalignment Figure 42 continued on next page ...
Страница 397: ...Measurement Figure 42 Correcting Parallel Misalignment Figure 42 continued on next page ...
Страница 398: ...Adjustment Figure 42 Correcting Parallel Misalignment ...
Страница 399: ...To Check Angular Alignment Figure 43 Alignment Check Assembled Coupling Figure 43 continued on next page ...
Страница 400: ...To Check Parallel Alignment Figure 43 Alignment Check Assembled Coupling ...
Страница 401: ...Figure 44 Removing the Oil Filter ...
Страница 402: ...Figure 45 Typical Float Valve Arrangement ...
Страница 403: ...Figure 46 Lifting Open Drive Motor ...
Страница 404: ...Figure 47 Controls for Optional Pumpout Compressor ...
Страница 405: ...Figure 48 Oil Differential Pressure Power Supply Module ...
Страница 406: ...Figure 49 PSIO Module LED Locations ...
Страница 407: ...Figure 50 LID Module Rear View and LED Locations ...
Страница 408: ...Figure 51 Processor PSIO Module ...
Страница 409: ...Figure 52 Starter Management Module SMM ...
Страница 410: ...Switch Setting Options Module 1 Options Module 2 S1 S2 6 4 7 2 Figure 53 Options Module ...
Страница 411: ...Figure 54 Model Number Nomenclature for Compressor Size See Figure 1 Also ...
Страница 412: ...Note See Table 17 for dimensions Figure 55 Open Drive Compressor Fits and Clearances Figure 55 continued on next page ...
Страница 413: ...Figure 55 Open Drive Compressor Fits and Clearances Figure 55 continued on next page Note See Table 17 for dimensions ...
Страница 414: ...Figure 55 Open Drive Compressor Fits and Clearances Note See Table 17 for dimensions ...
Страница 416: ...Figure 56 Hermetic Compressor Fits and Clearances ...
Страница 417: ...Figure 57 Electronic PIC Controls Wiring Schematic Hermetic Machine Figure 57 continued on next page ...
Страница 418: ...Figure 57 Electronic PIC Controls Wiring Schematic Hermetic Machine ...
Страница 419: ...Figure 58 Electronic PIC Controls Wiring Schematic Open Drive Machine Figure 58 continued on next page ...
Страница 420: ...Figure 58 Electronic PIC Controls Wiring Schematic Open Drive Machine ...
Страница 421: ...Figure 59 Machine Power Panel Starter Assembly and Motor Wiring Schematic Figure 59 continued on next page ...
Страница 422: ...Figure 59 Machine Power Panel Starter Assembly and Motor Wiring Schematic ...
Страница 423: ...Figure 60 Hermetic Drive Power Panel with Water Cooled Oil Cooler ...
Страница 424: ...Figure 61 Hermetic Drive Power Panel with Motor Cooling Solenoid ...
Страница 425: ...Figure 62 Open Drive Power Panel ...