Page 2 - Application Engineering; Safety Instructions; Copeland Scroll; You are strongly advised; DANGER; NOTICE; CAUTION
AE4-1311 R6 Application Engineering B U L L E T I N 2 © 2011 Emerson Climate TechnologiesPrinted in the U.S.A. Safety Instructions Copeland Scroll ® compressors are manufactured according to the latest U.S. and European Safety Standards. Particular emphasis has been placed on the user's safety. Safe...
Page 3 - ELECTRICAL SHOCK HAZARD; removing compressor.; BURN HAZARD; install, commission and maintain this equipment.; WARNING
AE4-1311 R6 Application Engineering B U L L E T I N 3 © 2011 Emerson Climate TechnologiesPrinted in the U.S.A. ELECTRICAL SHOCK HAZARD • Disconnect and lock out power before servicing. • Discharge all capacitors before servicing. • Use compressor with grounded system only. • Molded electrical plug m...
Page 4 - Introduction; fl; Nomenclature
AE4-1311 R6 Application Engineering B U L L E T I N 4 © 2011 Emerson Climate TechnologiesPrinted in the U.S.A. Introduction The ZPS*K4 and ZPS*K5 two step modulated Copeland Scroll ® compressors are ideally suited for residential and light commercial applications where a capacity step reduction and ...
Page 6 - The current in the ZPS*K5 solenoid modulation
AE4-1311 R6 Application Engineering B U L L E T I N 6 © 2011 Emerson Climate TechnologiesPrinted in the U.S.A. result in a valve not shifting. This can result in a condition where the compressor appears to be not pumping (i.e. balanced pressures). It can also result in elevated compressor sound leve...
Page 7 - Use caution with high voltage and never hipot; Use caution when troubleshooting energized; Unloader Test Procedure with Standard 24 Volt
AE4-1311 R6 Application Engineering B U L L E T I N 7 © 2011 Emerson Climate TechnologiesPrinted in the U.S.A. reducing the perception of light dimming. Part-load starting also reduces the inrush current on the 24 volt transformer. For the highest level of system reliability, part-load starting is r...
Page 8 - Applications
AE4-1311 R6 Application Engineering B U L L E T I N 8 © 2011 Emerson Climate TechnologiesPrinted in the U.S.A. with a dc voltmeter. The reading should be 4 to 18 volts when Comfort Alert ® is used with ZPS*K4 compressors and 18 to 28 volts when Comfort Alert or CoreSense ™ is used with ZPS*K5 compre...
Page 9 - Figure 3
AE4-1311 R6 Application Engineering B U L L E T I N 9 © 2011 Emerson Climate TechnologiesPrinted in the U.S.A. 70 80 90 100 110 120 130 140 150 -20 -10 0 10 20 30 40 50 60 Condensing T e mper atur e (°F ) Evaporating Temperature (°F) *See Table 1 25 30 35 40 45 50 55 60 65 -25 -20 -15 -10 -5 0 5 10 ...
Page 10 - Figure 5; Rectified; Thermostat
AE4-1311 R6 Application Engineering B U L L E T I N 10 © 2011 Emerson Climate TechnologiesPrinted in the U.S.A. 2 - Stage Thermostat Indoor Unit Outdoor Unit C R Y1 Y2 C R L Y Y2 L DC Solenoid UltraTechSolenoid Comfort Alert High / Low Pressure Switch CC Compressor Contactor C R Y1 Y2 L C R Y1 Y2 L ...
Page 11 - Prot; Figure 6; Figure 7
AE4-1311 R6 Application Engineering B U L L E T I N 11 © 2011 Emerson Climate TechnologiesPrinted in the U.S.A. 2 - Stage Thermostat Indoor Unit Outdoor Unit C R Y1 Y2 C R L Y Y2 L DC Solenoid UltraTechSolenoid CoreSense High / Low Pressure Switch CC Compressor Contactor C R Y1 Y2 L C R Y1 Y2 L Prot...
Page 12 - Figure 8; Verify the correct crankcase heater
AE4-1311 R6 Application Engineering B U L L E T I N 12 © 2011 Emerson Climate TechnologiesPrinted in the U.S.A. Figure 8 Crankcase Heater Location ZPS20-30K5 ZPS20-40K4 & ZPS35 -60K5 1 ZPS49-60K4 2 Connect the heater so that the connection point straddles the compressor seam weld 0.20- 0 .47 ” (...
Page 13 - Charge
AE4-1311 R6 Application Engineering B U L L E T I N 13 © 2011 Emerson Climate TechnologiesPrinted in the U.S.A. Model Max Condensing Temp ZPS20,30,40,49,51K4 140°F/60°C ZPS26,35,60K4 145°F/63°C All ZPS*K5 145°F/63°C Table 1 Model Frame Size* Charge Limit 120% x Limit** Pounds kg Pounds kg ZPS20 - 30...
Page 14 - Table 4
AE4-1311 R6 Application Engineering B U L L E T I N 14 © 2011 Emerson Climate TechnologiesPrinted in the U.S.A. The contents of this publication are presented for informational purposes only and they are not to be construed as warranties or guarantees, express or implied, regarding the products or s...