Carrier 060- Manuals

UNIT 30HWA DIMENSIONS — in. (mm) A B C D E F G 018 12.58 (320) 19.20 (488) 20.48 (520) 33.85 (860) 11.72 (298) 5.75 (146) 17.95 (456) 025 12.82 (326) 18.98 (482) 20.57 (522) 33.85 (860) 11.72 (298) 5.75 (146) 17.95 (456) 028 12.64 (321) 18.31 (465) 20.73 (527) 33.85 (860) 11.72 (298) 5.75 (146) 17.9...

WEIGHT DISTRIBUTION AT EACH MOUNTING HOLE, 60 HZ UNITS UNIT SIZE MOUNTING HOLES 30HK 30HL A B C D A B C D Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg 040 710 322 712 323 705 320 703 319 — — — — — — — — 050 787 357 789 358 782 355 780 354 519 235 521 236 516 234 514 233 060 838 380 840 381 832 37...

Step 5 — Make Piping Connections — See Fig. 13 and 14 for typical piping applications. 30HK, HWC, HWS CONDENSER DESCRIPTION — All30HWC and HWS units use a shell-and-tube condenser withremovable heads for easy tube servicing. Refrigerant is con-tained within the shell, and water flows through the tub...

Fig. 13 — T ypical Piping with Fluid-Cooled 30HWB Unit Shown NOTES: 1. Chiller must be installed levelly to maintain proper compressor oil return. 2. Wiring and piping shown are general points-of-connection guides only and are not intended for a specific installation. Wiring and piping shown are for...

The cooler fluid inlet and outlet connections are grooved- end. On 30HW units, the fluid enters at the top connectionand leaves at the bottom connection. Procedures for makingthe grooved-end connections are the same as for the 30HWBcondensers. See 30HWB Condenser section on page 16 formore details. ...

Step 6 — Make Electrical Connections — All field wiring must comply with local code requirements. Electricaldata for the complete unit and for the compressors is shownin Tables 4A and 4B. See Fig. 17 and 18 for field wiringconnections. A field-supplied branch circuit disconnect switchthat can be loc...

Table 4B — Electrical Data — 30HL and HWA Condenserless Units UNIT SIZE 30- UNIT COMPRESSOR (ea) Volts Voltage* MCA ICF MFA Rec Fuse RLA LRA MTA Nameplate (3 ph) Hz Min Max PW XL PW XL PW XL HL050 208/230 60 187 253 190 † 571 250 225 100/65** † 506/315** † 78/50** 460 60 414 518 84 † 282 125 100 44/...

LEGEND COM — CommonCR — Compressor Relay CWP — Chilled Water PumpDLS — Demand Limit Switch GCS — Ground Current SensingNC — Normally Closed NO — Normally Open TB — Terminal Block TC — Temperature Control Field WiringFactory WiringAccessory NOTE: Manual lead/lag selector switch mustbe disconnected wh...

PRE-START-UP IMPORTANT: Before beginning Start-Up, completeStart-Up Checklist on pages CL-1 to CL-4. This check-list assures proper start-up of a unit, and provides arecord of unit condition, application requirements, sys-tem information, and operation at initial start-up. ELECTRIC SHOCK HAZARDOpen ...

Table 5 — Typical Deadband Requirements UNIT CAPACITY STEPS COOLER DESIGN RANGE, F (C) 5.0 (2.8) 10.0 (5.6) 15.0 (8.3) 2 1.3 (0.7) 2.5 (1.4) 3.8 (2.1) 3 0.8 (0.4) 1.7 (0.9) 2.5 (1.4) 4 0.6 (0.3) 1.3 (0.7) 1.9 (1.1) Table 6 — Deadband Setting MIN. REQUIRED DEADBAND DEADBAND SETTING (F) F C 0.5 to 1.5...

Check Oil Charge — The compressor(s) is factory- charged with oil. If oil is visible in the compressor sightglass(es), check the unit for operating readiness as describedin Initial Check section (page 25), then start the unit. Ob-serve oil level and add oil, if required, to bring the oil levelin the...

DISCHARGE LINE CHECK VALVE — On all 30HL, HWAunits, a factory-supplied check valve is shipped with the unit(two valves are provided for 30HL units). The check valve(s)should be installed in the discharge line(s) downstream from,but close to, the compressor muffler. Install the valve in anyposition e...

The control module also monitors the high-pressure switch(es) and compressor internal thermal protection (30HW).If at any time one or both of these switches opens, the con-trol module shuts down the compressor and places the unitin a lockout condition. The control module activates the faultindicatio...

Once the compressor is shut off, the control system pre- vents the compressor from restarting within 5 minutes of whenit was last shut down. Once this period has elapsed and theleaving fluid temperature rises above the set point, the com-pressor will start within 5 seconds. If the unit is equipped w...

Table 11 — Capacity Control Steps — 30HW Standard Units UNIT CAPACITY CONTROL CAPACITY OPERATING 30HW STEPS* % CYLINDERS 018 1 33.3 2 2 66.7 4 3 100.0 6 025 1 50.0 2 2 100.0 4 028 1 33.3 2 2 66.7 4 3 100.0 6 035 1 33.3 2 2 66.7 4 3 100.0 6 040 1 33.3 2 2 66.7 4 3 100.0 6 *Factory-installed hot gas b...

Thermistor — The resistance at various temperatures for the thermistor are given in Tables 12A and 12B. THERMISTOR REPLACEMENT, 30HK, HL UNITS Thermistors are installed directly in fluid circuit. Drainfluid before removing. Proceed as follows (see Fig. 22):1. Remove and discard original thermistor a...

Table 12A — Sensor Temperature (F) vs Resistance TEMPERATURE RESISTANCE (F) (OHMS) - 25 98,010 - 24 94,707 - 23 91,522 - 22 88,449 - 21 85,485 - 20 82,627 - 19 79,871 - 18 77,212 - 17 74,648 - 16 72,175 - 15 69,790 - 14 67,490 - 13 65,272 - 12 63,133 - 11 61,070 - 10 59,081 - 9 57,162 - 8 55,311 - 7...

Table 12B — Sensor Temperature (C) vs Resistance TEMPERATURE RESISTANCE (C) (OHMS) -32.0 100 049 -31.5 97 006 -31.0 94 061 -30.5 91 209 -30.0 88 449 -29.5 85 777 -29.0 83 191 -28.5 80 687 -28.0 78 264 -27.5 75 918 -27.0 73 648 -26.5 71 451 -26.0 69 324 -25.5 67 265 -25.0 65 272 -24.5 63 344 -24.0 61...

SERVICING COOLER (30HK,HL ONLY) NOTE: The cooler on 30HW units is not serviceable. When cooler heads and partition plates are removed, tube sheets are exposed showing tube ends as shown in Fig. 23. Four tubes in the bundle are secured inside cooler at bafflesand cannot be removed. These are identifi...

TROUBLESHOOTING Complete Unit Stoppage and Restart — Pos- sible causes for unit stoppage and reset methods are (alsosee Table 14): GENERAL POWER FAILURE — After power is restored,restart is automatic through the normal timer cycle. UNIT ON-OFF SWITCH IS OPEN — When the switch isopened, the unit stop...

COOLING LOAD SATISFIED — Unit shuts down if cool-ing load is satisfied. Unit restarts if required after comple-tion of 5-minute timer cycle. THERMISTOR FAILURE — If thermistor fails in open mode,the temperature controller shuts down the unit in an out-of-range condition. Replace the thermistor. Unit...

SERVICE TRAINING Packaged Service Training programs are an excellent way to increase your knowledge of the equip-ment discussed in this manual, including: • Unit Familiarization• Installation Overview • Maintenance• Operating Sequence A large selection of product, theory, and skills programs are ava...

B. Preliminary Equipment Check (YES or NO) (cont) HAVE POWER SIDE ELECTRICAL COMPONENT CONNECTIONS BEEN CHECKED FOR TIGHTNESS? ON 30HK,HL UNITS, IS THE PROPER CONTROL VOLTAGE SUPPLIED TO TB2-1 AND TB2-3? ON 30HK,HL 50 HZ UNITS, IS THE BLACK WIRE GOING TO TRAN1 AND TRAN2 CONNECTED TO THE RED LEAD FRO...