Carrier 30HK- Manuals

Page 2 - Fig. 2 — Compressor Mounting; When rolling or dragging, apply force to the skid,

Table 1 — Weight Distribution (ib) UM!T 30( )-- APPROX OPERWT HK HL HK HL A I B C D A B C D 015 1637 1016 142j 201 755 539 266 266 242 242 020 1787 1136 182| 240 790 575 296 296 272 272 025 1980 1310 3031 205 592 880 367 285 285 373 030 1985 1334 3031 205 592 885 377 290 290 377 Location of mounting...

Page 3 - Table; Step 3 — Check Compressor Mounting and; Provide a means for draining system in winter

UNIT AND COMPRESSOR Table 2 — Physical Data UNIT 30HK.HL 015 020 025 030 APPROXIMATE HK 1637 1787 1980 1985 OPERATING WT (lb) HL 1016 1136 1310 1334 REFRIGERANT(R-22) HK 34 38 40 45 CHARGE (lb) HL Holding Charge COMPRESSOR 06* HK DC537 E2150 E7265 E7175 HL DC537 E2250 E7265 E7275 No. Cylinders 6 4 6...

Page 4 - after leak testing; ^ Table 3 — Minimum Cooler and Condenser; Step 5 — Make Electrical Connections

3. A specific head pressure must be maintained. Set water regulating valve to maintain design head pressure. Do not adjust to compensate for high head pressures caused by fouled condenser tubes, excess refrigerant or the presence of non-condensables. Due to changes in water temperature, it may be n...

Page 5 - Refer to Tables 4 and 5 for electrical data on indi; ^ Table 4 — Unit Voltage and Model Number*; Never operate a motor where a phase imbalance; e l e c t r i c u u l i t s c o r n p a i n i m m c d i a t e U .; Fig. 3 — Wiring Schematic — Unit and

Refer to Tables 4 and 5 for electrical data on indi vidual compressors and complete units. Compressor usage is given in Tables 2 and 5. ELECTRICAL BOX, CONTROL SECTION Inside this section are relays, high- and low- pressure cutouts, low water-temperature cutout, timer, terminal strips and a 3-step ...

Page 6 - Initial Check; compressor discharge \al\e until there is a

Table 5 — Electrical Data; 3-Phase, 60-Hertz COMPLETE UNIT VOLTS Nameplate 208/230* 460 575 COMPRESSOR 06E USAGES Supply Ränget 187-253 414-508 518 632 UNIT 30 MCA Max Fuse Amps MCA Max Fuse Amps MCA Max Fuse Amps MKW 015 16.4 69 110 34 60 29 50 0537** 020 21.8 79 125 36 60 34 60 2150 025 29.0 103 1...

Page 7 - Check on Charge

The ЗОН К units are shipped with a full refrigerant charge (see Table 2). However, if it is necessary to add refrigerant, operate the unit for some time at full capacity and then add charge until the sight glass is clear of bubbles. For maximum liquid subcooling, liquid level should be up to condens...

Page 8 - Check Refrigerant Feed Components; Check Compressor Protection Devices; IMPOR LAN I l'>o not bypass connections or

6. Check leaving chilled water temperature to see that it remains well above freezing. 7. Recheck compressor oil level. See Check Oil Charge. Check Refrigerant Feed Components THERMOSTATIC EXPANSION VALVE (TXV) This valve controls refrigerant flow. Valve is activated by a temperature sensing bulb cl...

Page 9 - pressor tor a second time until the problem has; Fig. 5 — Oil Pressure Safety Switch to; Fig. 6 — Safety Thermostat

The electric heater is wired into the 115-volt control circuit thru normally closed contacts of control relay in such a way that it is energized only when compressor is not operating. All heaters are 125 watts. C .\L 1 ION: Never open an\ >witeh or discon nect that will de-encrgi/e crankcase hea...

Page 10 - / TURN CLOCKWISE TO RAISE; Adjustment; or if brine below 10 L' is to be used, controller

Check Unit Safety Devices SAFETY THERMOSTAT (Fig. 6) The low water temperature cutout (LWTC) pro tects the unit against freeze-up due to operating malfunction. The sensing bulb is inserted into a well located in the leaving water nozzle. As installed, the standard control is factory set to open at...

Page 11 - return; Fig. 8 — Set Point Adjustment

The return water temperature at which the last step of capacity unloads is indicated by the leaving water temperature design set point on the adjustable dial (Fig. 8). Example:Design set point is at 44 F. On a reduction in load, the capacity of the unit will be reduced to zero when return water temp...

Page 12 - Tube Plugging; must; SERVICING COOLER; Fig. 9 — Typical Tube Sheet

6. ANY SAFETY DEVICE TRIPS. If device is low-pressure switch, reset is automatic and unit restart is thru normal timer cycle. In the case of low, or lost, refrigerant charge, charge must be increased to normal level before restart. If device is one of the following, high-pressure switch, overtempera...

Page 13 - Tightening Cooler Head Bolts; momentarily; Cooler Head Bolts; Fig. 10 — Elliott Tube Plug

Tube information: in. (mm) Tube sheet hole diameter...... .... 0.631 (16.03) Tube OD............................... .... 0.625 (15.87) Tube ID after rolling............. .... 0.581 (14.76 to (includes expansion due to 14.94) to clearance) 0.588 BOLT TIGHTENING SEQUENCE (Fig. 11) The following is a r...

Page 14 - TROUBLESHOOTING GUIDE

TROUBLESHOOTING GUIDE SYMPTOMS 1 PROBABLE CAUSE REMEDY Compressor does not run ! Power line open Reset circuit breaker. ! Control circuit breaker tripped Check control circuit for ground or short. s Reset breaker. j Safety tripped Reset. 1 Tripped power breaker Check the controls. Find cause of trip...