Évaluations - 5, GPA: 3.6
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Facilité d'utilisation
ALL SERVICE WORK SHALL BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN IN ACCORDANCE WITH YORK INSTALLATION/OPERATION MANUAL. T TTTTTABLE OF CONTENTS ABLE OF CONTENTSABLE OF CONTENTSABLE OF CONTENTSABLE OF CONTENTSABLE OF CONTENTS Page SECTION 1 – Description of System and Fundamentals of Operation ......................................... 4 SECTION 2 – MicroComputer Control Center ...................................... 6 SECTION 3 – System Operating Procedures..................................... 30 SECTION 4 – System Component Description .................................. 37 SECTION 5 – Operational Maintenance ............................................. 42 SECTION 6 – Trouble Shooting ........................................................... 44 SECTION 7 – Maintenance ................................................................. 49 SECTION 8 – Preventive Maintenance............................................... 58 REFERENCE INSTR REFERENCE INSTRREFERENCE INSTRREFERENCE INSTRREFERENCE INSTRREFERENCE INSTRUCTIONS UCTIONSUCTIONSUCTIONSUCTIONSUCTIONS DESCRIPTION Solid State Starter – Operation & Maintenance 160.46-OM3.1 Variable Speed Drive – Operation 160.00-O1 Installation 160.49-N5 Installation and Operation of Printers 160.49-N7 Wiring Diagram – Unit with Electro-Mechanical Starter 160.49-PW7 Wiring Diagram – Field Connections (E-M Starter) 160.49-PW10 Wiring Diagram – Field Control Modifications 160.49-PW13 Wiring Diagram – Control Center with SS Starter 160.49-PW8 Wiring Diagram – Field Connections (SS Starter) 160.49-PW11 Wiring Diagram – Solid State Starter 160.49-PW14 Wiring Diagram – Unit with Solid State Starter 160.49-PW8 Wiring Diagram – Unit with Variable Speed Drive 160.49-PW9 Wiring Diagram – Field Connections (V.S.D.) 160.49-PW12 Wiring Diagram – Variable Speed Drive 160.49-PW15 FORM NO. YORK INTERNATIONAL FORM 160.49-O2 NOMENCLATURE R-22 UNITS YK N2N1H1 – CX C DESIGN LEVEL (C) { MOTOR CODE: POWER SUPPLY – for 60 HZ 5 for 50 HZ COMPRESSOR CODE G4, H0, H1, H2, J1, J2 CONDENSER CODE M3, M4, N3, N4, P3, P4, Q3, Q4, R3, R4, S3, S4 COOLER CODE M3, M4, N3, N4, P3, P4, P5, P6, Q3, Q4, Q5, Q6, R3, R4, R5, R6, S5, S6 MODEL 60 HZ 50 HZ CH CX 5CE 5CT CJ CY 5CF 5CU CK CZ 5CG 5CV CL CA 5CH 5CW CM CB 5CI 5CX CN DA 5CJ 5DA CP DB 5CK 5DB CR DC 5CL 5DC CS DD 5CM 5DD CT DE 5CN 5DE CU DF 5CO 5OF CV DH 5CP 5OG CW DJ 5CQ 5OH 5CR 5OJ 5CS R-134a YKNBPBH1 – CX C DESIGN LEVEL (C) { MOTOR CODE: POWER SUPPLY – for 60 HZ 5 for 50 HZ COMPRESSOR CODE G4, H0, H1, H2, J1, J2, J3, J4 CONDENSER CODE LB, LC, MB, MC, NB, NC, PB, PC, QB, QC, RB, RC, SB, SC COOLER CODE LB, LC, MB, MC, NB, NC, PB, PC, PD, PE, QB, QC, QD, QE, RB, RC, RD, RE, SD, SE MODEL 60 HZ 50 HZ CH CX 5CE 5CT CJ CY 5CF 5CU CK CZ 5CG 5CV CL CA 5CH 5CW CM CB 5CI 5CX CN DA 5CJ 5DA CP DB 5CK 5DB CR DC 5CL 5DC CS DD 5CM 5DD CT DE 5CN 5DE CU DF 5CO 5DF CV DH 5CP 5DG CW DJ 5CQ 5DH 5CR 5OJ 5CS YORK INTERNATIONAL SECTION 1 DESCRIPTION OF SYSTEM AND FUNDAMENTALS OF OPERATION COMPRESSOR CONTROL CENTER MOTOR COOLER 27382A DISCHARGE LINE PRE-ROTATION VANE ACTUATOR CONDENSEROIL RESERVOIR/ PUMP 27385A FIG. 1 – MODEL YK MILLENNIUM CHILLER SYSTEM OPERATION DESCRIPTION (See Fig. 2) The YORK Model YK Millennium Chiller is commonly applied to large air conditioning systems, but may be used on other applications. The chiller consists of an open motor mounted to a compressor (with integral speed increasing gears) condenser, cooler and flow control chamber. The chiller is controlled by a modern state of the art MicroComputer Control Center which monitors its operation. The Control Center is programmed by the operator to suit job specifications. Automatic timed startups and shutdowns are also programmed to suit nighttime, weekends, and holidays. The operating status, temperatures, pressures, and other information pertinent to operation of the chiller are automatically displayed and read on a 40 character alphanumeric message display. Other displays can be observed by pressing the keys as labeled on the Control Center. The chiller with the MicroComputer Control Center is applied with an electro-mechanical starter, YORK Solid State Starter (optional), or Variable Speed Drive (optional). In operation, a liquid (water or brine to be chilled) flows through the cooler, where boiling refrigerant absorbs heat from the water. The chilled liquid is then piped to fan coil units or other air conditioning terminal units, where it flows through finned coils, absorbing heat from the air. The warmed liquid is then returned to the chiller to complete the chilled liquid circuit. The refrigerant vapor, which is produced by the boiling action in the cooler, flows to the compressor where the rotating impeller increases its pressure and temperature and discharges it into the condenser.Water flowing through the condenser tubes absorbs heat from the refrigerant vapor, causing it to condense. The condenser water is supplied to the chiller from an external source, usually a cooling tower.The condensed...