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Emerson AE4-1395 - page 1
1 © 2012 Emerson Climate T echnologies, Inc. Printed in the U.S.A. AE4-1395 Applic ation Enginee ring BULL ET IN 3 to 15 T on Copeland Scroll Digital ™ Compressors for Air Conditioning AE4-1395 August 2012 Applic ation Enginee ring BULL ET IN Safety Safety Instructions ................................................. 2 Safety Icon Explanation . ...
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Emerson AE4-1395 - page 2
2 © 2012 Emerson Climate T echnologies, Inc. Printed in the U.S.A. AE4-1395 Applic ation Enginee ring BULL ET IN 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 . Safey icons are explained below and safety ...
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Emerson AE4-1395 - page 3
3 © 2012 Emerson Climate T echnologies, Inc. Printed in the U.S.A. AE4-1395 Applic ation Enginee ring BULL ET IN ELECTRICA L SHOCK HAZARD • Disconnect and lock out power before servicing. • Discharge all capacitors before servicing. • Use compressor with grounded system onl y. • Molded electrical plug must be used when required. • Refer ...
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Emerson AE4-1395 - page 4
4 © 2012 Emerson Climate T echnologies, Inc. Printed in the U.S.A. AE4-1395 Applic ation Enginee ring BULL ET IN Introduction The 3 to 15 ton Copeland Scroll Digital ™ compressors described in this bulletin include the follow compressor model numbers: R-410A R-22 & R-407C ZPD34 to ZPD54K5 ZRD36 to ZRD81KC ZPD61 to ZPD91KC ZRD94 to ZRD125KC Z ...
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Emerson AE4-1395 - page 5
5 © 2012 Emerson Climate T echnologies, Inc. Printed in the U.S.A. AE4-1395 Applic ation Enginee ring BULL ET IN Compressor operation during the loaded state should always be inside of the envelope. The envelopes represent allowable operation of the compressor with 20F° suction superheat at rated voltage. If the speci? ...
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Emerson AE4-1395 - page 6
6 © 2012 Emerson Climate T echnologies, Inc. Printed in the U.S.A. AE4-1395 Applic ation Enginee ring BULL ET IN bar) for R-407C & R-22 to prevent evaporator coil icing. The cut in setting can be as high as 180 psig (12.5 bar) for R-410A and 105 psig (7.2 bar) for R-407C & R-22 to prevent rapid recycling in case of refrigerant loss. For he ...
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Emerson AE4-1395 - page 7
7 © 2012 Emerson Climate T echnologies, Inc. Printed in the U.S.A. AE4-1395 Applic ation Enginee ring BULL ET IN Modulation Control T wo different controls are available from Emerson to provide digital scroll modulation control, the Copeland Scroll ™ Digital Compressor Controller and the Emerson Commercial Comfort Controller . The Copeland Scrol ...
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Emerson AE4-1395 - page 8
8 © 2012 Emerson Climate T echnologies, Inc. Printed in the U.S.A. AE4-1395 Applic ation Enginee ring BULL ET IN hot-gas-bypass for capacity control are also ideal units foradigitalscrollretrot. Retrot Applications T o A void NOTICE Always check with the original equipment manufacturer , before modifying the equipment, to underst ...
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Emerson AE4-1395 - page 9
9 © 2012 Emerson Climate T echnologies, Inc. Printed in the U.S.A. AE4-1395 Applic ation Enginee ring BULL ET IN 7. Using the appropriate lifting devices, carefully remove the compressor from the system. The following steps should be followed to install the digital compressor into the system. 1. Before removing the rubber plugs, install the compre ...
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Emerson AE4-1395 - page 10
10 © 2012 Emerson Climate T echnologies, Inc. Printed in the U.S.A. AE4-1395 Applic ation Enginee ring BULL ET IN SERVICE PROCEDURES Modulation T roubleshooting The modulation valve and solenoid coil are engineered for specic use with the digital scroll. Don’t attempt to substitute replacement solenoid coils tha ...
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Emerson AE4-1395 - page 11
11 © 2012 Emerson Climate T echnologies, Inc. Printed in the U.S.A. AE4-1395 Applic ation Enginee ring BULL ET IN 9. Use care when handling the replacement valve – don’t drop the valve or impact the solenoid stem. If the valve is dropped or damaged, discard it and obtain a new valve for replacement. 10. Lightly oil the gaskets with refrigerati ...
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Emerson AE4-1395 - page 12
12 © 2012 Emerson Climate T echnologies, Inc. Printed in the U.S.A. AE4-1395 Applic ation Enginee ring BULL ET IN 50% Loaded 80% Loaded PUMPING PUMPING 7.5 s 7.5 s 12s 3s NO T PUMPING NO T PUMPING One Cycle of 15 seconds 15 seconds Figure 1 Digital Cycle Example Figure 2 3 to 7.5 T on Digital Scroll Cross Sectional View Note: Modulation tubing is ...
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Emerson AE4-1395 - page 13
13 © 2012 Emerson Climate T echnologies, Inc. Printed in the U.S.A. AE4-1395 Applic ation Enginee ring BULL ET IN Figure 3 8 to 15 T on Digital Scroll Cross Sectional View Removable Ex ternal Solenoid and Coil Floating Seal Cavity Seal Cavity Ve nt 90 Frame Digital Scroll ...
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Emerson AE4-1395 - page 14
14 © 2012 Emerson Climate T echnologies, Inc. Printed in the U.S.A. AE4-1395 Applic ation Enginee ring BULL ET IN Figure 5 Figure 4 70 80 90 100 110 120 130 140 150 160 -2 0- 10 01 02 03 04 05 06 0 Condensing Te mperature (°F) Ev aporating Te mperature (°F) R-22, R-407C, R-410 A Operating En ve lope ZPD34-54K5 ZPD61-91KC ZRD36-81KC Recommended C ...
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Emerson AE4-1395 - page 15
15 © 2012 Emerson Climate T echnologies, Inc. Printed in the U.S.A. AE4-1395 Applic ation Enginee ring BULL ET IN Figure 7 Discharge Thermistors Figure 6 Compressor Capacity Graph *.ppt 3/23 /2 010 3:14 PM 1 0% 10 % 20 % 30 % 40 % 50 % 60 % 70 % 80 % 90 % 100% 0123456789 10 11 12 13 14 15 Co mp re ss or Ca pa ci ty (P er ce nt of Fu ll Lo ad ) 15 ...
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Emerson AE4-1395 - page 16
16 © 2012 Emerson Climate T echnologies, Inc. Printed in the U.S.A. AE4-1395 Applic ation Enginee ring BULL ET IN Figure 8 3 to 7.5 T on Modulation V alve Piping Figure 9 3 T o 7.5 T on T andem Ar ro w on va lv e Mu st point to suctio n Oil Equalization Line Suction Gas Equalizatio n Ma nifold Discharge Ma nifold A ssembly Suctio n Ma nifold A sse ...
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Emerson AE4-1395 - page 17
17 © 2012 Emerson Climate T echnologies, Inc. Printed in the U.S.A. AE4-1395 Applic ation Enginee ring BULL ET IN Obser ve the co mp ressor suction &d ischarge pr essu re s Ar e pr essures changing with the modulation cycl e? Operation is nor ma l Ye s No Ye s Ye s Me asur e the re sistance of the coil Is the co mp ressor running ? Is the co m ...
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Emerson AE4-1395 - page 18
18 © 2012 Emerson Climate T echnologies, Inc. Printed in the U.S.A. AE4-1395 Applic ation Enginee ring BULL ET IN T able 2 Refrigerant Charge Limits Model Charge Limit Pounds kg ZPD34-54K5 8 3.6 ZPD61-91KC 10 4.8 ZPD103-137KC 16 7.2 ZPD154-182KC 18 8.2 ZPDT12-18MC 12 5.4 ZPDU13MC 12 5.4 ZPDT21-27MC 24 10.9 ZPDT31-36MC 27 12.2 ZRD36-48KC 8 3.6 ZRD6 ...
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Emerson AE4-1395 - page 19
19 © 2012 Emerson Climate T echnologies, Inc. Printed in the U.S.A. AE4-1395 Applic ation Enginee ring BULL ET IN T able 4 – Compressor Accessories 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 servicesd ...
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