Installation & Service Manual
Contents
1. 24 30 Gas Defrost Return Piping Diagram 24 31 System Components with Gas Defrost 24 31 Piping Diagram for Enviroguard with Gas Defrost 24 32 Piping Diagram for Enviroguard with Gas Defrost amp Space Heat Recovery 24 33 Gas Defrost Control Settings 24 34 Wiring Diagram for Defrost Return Solenoid Field Installed 24 34 Troubleshooting Enviroguard Problems Chart 24 35 25 Enviroguard Il Contact Tyler Service Department 26 Enviroguard HII 26 1 Theory of Operation 26 1 Subcooling Defined 26 1 Nature s Cooling Concept 26 1 Enviroguard and TXV Operation 26 2 June 2007 Installation amp Service Manual June 2007 PARALLEL COMPRESSORS amp ENVIROGUARD Page Enhanced Nature s Cooling Concept 26 2 Effects and Facts to Consider 26 2 Enviroguard and Heat Reclaim 26 3 Enviroguard and Hot Gas Defrost 26 3 ImportanttoKnow 26 3 DIS EM TED PAG GG 26 3 SPR Operation ct a ka Xe ite Tr2. 26 18 Condenser Set Up 26 18 Condenser Pressure Inputs Set Up 26 19 Condenser Pressure Delays Set Up 26 19 Condenser Single Speed Fan Set Up 26 19 Condenser Setpoints 26 19 Input Output Board Point Definitions 26 20 Recommended Charging Procedure 26 20 SPR Solenoid Valve Wiring 26 20 Condenser Control w RO Board at Rack 26 21 Condenser Control w RO Board at Condenser 26 21 Enviroguard Ill Control Set Up for CPC s Einstein 2 Controller 26 22 Anolog Input Set Up 26 22 Add the Control If They are Not Already Added 26 22 Condenser Control Set Up 26 22 Conversion Cell Set Up 26 22 Analog Sensor Control Set Up 26 23 Digital Combiner Set Up 26 23 Analog Inputs Set Up Chart 26 23 Table of Contents VII PARALLEL COMPRESSORS TYLER amp ENVIROGUARD REFRIGERATION Page Add Controls Chart 26 24 Condenser Set Up Chart 26 24 Conversion Cell Set Up Chart
3. 17 6 Piping Diagram for Parallel System w NC 1 amp Mechanical Subcooling 17 7 Hot Water Piping Methods Diagrams 17 8 18 Component Description amp Definitions 18 1 Refrigeration Branch Circuit 18 1 CHECK Valv eae aed fea ees ARA S do bats Wes ate ae Pk 18 1 Check Valve Locations 18 1 OLDR Liquid Differential Regulator Valve 18 2 June 2007 Table of Contents Ill PARALLEL COMPRESSORS TYLER amp ENVIROGUARD REFRIGERATION Page Heat Recovery Valve 18 2 Suction Stop Valve 18 3 Liquid Line Solenoid 18 3 Inlet Pressure Regulator IPR 18 3 ORIT amp IPR or A 8 Pressure Settings Chart 18 4 Adjusting IPR and OPR Valves 18 4 Outlet Pressure Regulator OPR 18 4 Piping Diagram for OPR Valve 18 4 CROT amp OPR Pressure Settings Chart 18 5 PENN Oil Prossure Safety Switch 18 5 Mechanical Oil Pressure Safety Switch P45 Chart 18 6 Oil Pressure Failure Switch Wiring Diagram 18 6 19 Opt Sentronic amp Sentron
4. 10 2 Differential Pressure Settings for OLDR for Various Heights Chart 10 2 11 Parallel Pressure Control Settings PSIG 11 1 Compressor Cut In amp Cut Out Pressure Settings Chart 11 1 Pressure Cycling Set Points for Condenser Fans Chart 11 1 Remote Condenser Fan Settings Chart 11 2 Setting Suction Pressure Differential amp Time Delay 11 2 Time Delay Values 11 2 Table of Contents Il June 2007 PARALLEL COMPRESSORS Installation amp Service Manual amp ENVIROGUARD Page 12 Defrost Control Strategies 12 1 Electric Defrost oie reste sequi fee P eens x bees Sees 12 1 aas Defrost paha ha nese Wet G AL GAGA ue erit Rr DERE 12 1 Fan Control amp Defrost Termination Temperatures 12 2 Electric amp Time Off Defrost Requirements Chart 12 2 Hot Gas Defrost Requirements Chart 12 5 19 Gas Defrosting 13 1 Gas Defrost Operating Principles 13 1 Gas Defrost Programming 13 2 14 Multi Circuit Time Clock Module 14 1 Operation AA PA E E E E 14 1 Setting the Multi Circuit Time Clock 14 1 Multi Circuit Time Clock Module Replacement
5. 24 2 Fixture Temperature Control 24 3 Condenser Locations 24 3 Condenser Piping Diagrams 24 4 Condenser Fan Control 24 5 Dropleg Transducer 24 5 Mechanical Liquid Subcooling 24 5 System Components 24 6 Piping amp Components Diagram Basic Enviroguard System 24 7 Installing the System 24 8 A Installing the System Piping 24 8 B Installing the Ambient Air Sensor 24 8 June 2007 Table of Contents V PARALLEL COMPRESSORS TYLER Table of Contents VI amp ENVIROGUARD REFRIGERATION Page Enviroguard Component Locations Diagram 24 9 Charging the System 24 10 Receiver Charge Guideline Chart 24 11 Setting the SPR 24 11 Setting the SPR on Enviroguard 24 12 Example Condenser Fan Control Charts 24 13 Temperature Pressure Charts 24 13 Sample Worksheet for R 22 Low Temp System Application 24 14 Sample Worksheet for R 22 Medium Temp System Ap
6. 22 2 Desuperheating Expansion Valve 22 2 Stat UD eo rea he ese ER OR AA Reiten a 22 3 o ccr IEEE 22 3 GeneraliiNOteS scu esi ERE Ga Dhaka Si ES EX ER PAN eet 22 3 Multiple Compressor Systems 22 3 Compressor System Diagram 22 4 R 22 Approximate Inter Stage Pressure PSIG w a Subcooler Chart 22 5 Piping Diagram for Parallel System with Two Stage Compressors 22 6 23 Optional Johnson Controls Electronic Oil Pressure Control P545 P445 amp P345 Series Models 23 1 Features amp Benefits Chart 23 1 Installation 26 wu Se ie APANG LIL ete SEER Cee Oe ee eked qe 23 2 Setting the Anti Short Cycling Timer 23 3 R310AD Relay Connection 23 3 WIN ES sea ik EEG AA AA 23 3 Wiring Diagtams daa dua a Naa erEibi res e ee eed et 23 4 Checkout Procedures LEDs Operating Status 23 4 Electrical Checkout Procedure 23 5 Operational Control Test 23 6 Troubleshooting Chart for Systems Not Using a R10A Sensing Relay 23 6 Troubleshooting Chart for Systems Using a R310AD Switch or R10A Sensing Relay 23 8 24 EBVIIOGUAEG sa saa REA e o o Fore ad we eats 24 1 Application Guidelines
7. 2 1 Materials 4 2 3 c eae ley Hank Rae dc Mee ee de mas 2 2 Service Valves tsa NG Pala a KAN IA OF eau oe GO we EEO idee 2 2 Vibration Isolation amp Piping Support 2 2 Guidelines for Good Piping 2 3 Gas Defrost Liquid Lines 2 5 Expansion Loop SIZING a mio ake x9 Ka e eee aes 2 6 3 Using Line Sizing Charts 0 ccc eee 3 1 Basis ie inte ad ae Sa eiue Oe Dn Fane acie ideni Soe on a ROLE ae ede 3 1 Equivalent Feel sn aa ARA PNU PG BNG DAG p Ha 3 1 LiguidiLine 5izINg a payt ira bank Ges eam ees ERE DS hia pan 3 1 Sizing Liquid amp Suction Sub Feed Lines Properly 3 2 Suction Line Riser Recommendations 3 3 Vertical Riser Suction Line Size Charts a 3 4 Line Size Guidelines eie ccc een eee 3 5 R 22 amp R404A Liquid Line Sizing Chart 3 5 Using Suction Line Sizing Charts Correctly 3 6 R 22 Suction Line Sizing 3 7 R404A Suction Line Sizing 3 8 Pressure Concerns 3 9 4 High Side Field Piping 4 1 Installation Notice 2 erro nki pirena eee 4 1 Discharge to Remote Condenser amp Heat Recovery Line Sizing Chart 4 2 Recommended Liquid Line Sizi
8. 8 1 Oil Reservoir 8 1 Oil Level Controls Oil Float 8 2 Oil Level Control Diagram 1 8 2 Oil Level Control Diagram 2 8 3 Check Oil Level 8 4 Oil Level Control Adjustment 8 4 Adding Qil acces haah BHI AK idees MO eek x HE woke aed dre 8 4 The Preferred Method of Adding Oil 8 5 Mineral Oil Applications 8 5 Polyol Ester Oil Applications 8 5 Carlyle Screw Compressor Applications 8 5 Bitzer Copeland Screw Compressor Applications 8 6 Removing Oil 8 6 9 Pressure Regulator Settings 9 1 IPR Inlet Pressure Regulator 9 1 IPR Inlet Pressure Regulator on Heat Recovery Coil 9 1 OPR Outer Pressure Regulator 9 2 DDPR Valve on Gas Defrost Systems 9 2 10 OLDR Liquid Differential Regulator Valve 10 1 Setting Procedure 10 1 OLDR Valve on Gas Defrost Systems 10 2 OLDR Valve Illustrations
9. Z Carrier A United Technologies Company REFRIGERATION SYSTEMS Installation amp Service Manual T j m PARALLEL COMPRESSORS amp ENVIROGUARD PARALLEL COMPRESSOR SYSTEMS that Supply Specific Refrigeration Requirements for Case Line ups in Stores Save these Instructions for Future Reference These refrigerator systems conform to the Commercial Refrigeration Manufacturers Association Health and Sanitation standard CRS S1 86 PRINTED IN Specifications subject to REPLACES ISSUE PART IN U S A change without notice EDITION 3 99 DATE 6 07 NO 5806448 REV D Tyler Refrigeration Refrigerated Mechanical Systems Yuma Arizona 49120 PARALLEL COMPRESSORS Installation amp Service Manual amp ENVIROGUARD TABLE OF CONTENTS Page 1 Planning for Mezzanine Machine Rooms 1 1 Machine Room Ventilation Requirements naana aeaa 1 1 Parallel Compressor Rack Dimensions 1 2 Parallel Compressor Rack ISOL Pad Drawings 1 5 Parallel Compressor Rack ISOL Spring Mounting Drawings 1 7 Setting Parallel Racks on Kenetic Absorption Pads 1 11 Optional Spring Mounting Pads for Parallel Racks 1 11 2 Refrigeration Piping nene 2 1 Successful Installation Practices 2 1 Possible Consequences of Poor Piping
10. 26 25 Analog Sensor Control Set Up Chart 26 25 Digital Combiner Set Up Chart 26 26 Recommended Charging Procedure 26 26 Condenser Setpoints Chart 26 27 Enviroguard Ill Control Set Up for Danfoss AKC 55 Controller 26 27 Screen 1 Condenser Configuration 26 27 Screen 2 Enviroguard Configuration 26 28 Screen 3 Low Subcooling Alarm Set Up 26 29 Screen 4 Condenser Status 26 30 Table of Contents VIII June 2007
11. 14 2 Removal Installation amp Alignment of Individual Program Modules 14 2 Removal Installation of the Drive Module 14 2 Program Charts for Multi Circuit Timers 14 3 15 Refrigeration Circuits Electric Time Off or Gas Defrost 15 1 Refrigeration Circuits Piping Diagrams 15 1 Time Off or Electric Defrost Circuits 15 1 Gas Defrost Piping Arrangements 15 2 Refrigeration Circuits Piping Diagram 15 3 Gas Defrost Circuits 15 3 16 Receiver Gas Defrost 16 1 Control Strategy NC 1 Latent Heat Receiver Gas Defrost 16 1 Piping Diagram for Parallel System with Demand Cooling Mechanical Subcooling amp Latent Gas Defrost 16 2 Piping Diagram for Parallel System with Latent Gas Defrost 16 3 17 Parallel System with NC 2 amp Heat Recovery 17 1 Typical Piping amp Devices All Systems 17 1 NGA AA AWA 17 2 Piping Diagram for Parallel System with NC 2 amp Heat Recovery 17 3 Parallel System with Heat Recovery amp Companion 17 4 Companion Compressor Protection 17 4 Piping Diagram for Parallel System w Heat Recovery amp Companion 17 5 Parallel System with Mechanical Subcooling
12. Chart Symptoms Possible Causes 20 2 21 R 22 Low Temperature Demand Cooling 21 1 Demand Cooling Components Illustration 21 1 Control Settings Chart 21 1 Tyler Part Numbers for Demand Cooling Kits Chart 21 2 Tyler Part Numbers for Demand Cooling Components Chart 21 2 Tyler Part Numbers for Demand Cooling Injection Valves Less Solenoid Chart 21 2 System Information 21 3 Demand Cooling System Diagram 21 3 Typical Parallel Wiring Application Diagram 21 4 Table of Contents IV June 2007 PARALLEL COMPRESSORS Installation amp Service Manual amp ENVIROGUARD Page Typical Single Unit Compressor Wiring TFC TFD Diagram 21 5 Typical Single Unit Compressor Wiring TSK Diagram 21 6 22 Carlyle Compound Cooling 22 1 Why Compound Cooling 22 1 How Compound Cooling Works 22 1 Suction Pressure Range 22 1 Intermediate Pressure Range 22 2 Discharge Pressure Range 22 2 EGONOMIZEN iad Sea ket LEA web EE DUE dee kee mes Eee 22 2 Economizer Cycle Diagram
13. e es Sr pb bred 26 4 Liquid Return and Enviroguard Piping Diagram amp Photos 26 5 Failsafe for Enviroguard Ill 26 8 Guidelines for Enviroguard Ill 26 8 Condenser Set Points Chart 26 9 Recommended Charging Procedure 26 9 Enviroguard Ill Piping Diagrams Evaporator 2 Defrosting 26 9 Electric or Time Off Defrost Summer Operation 26 10 Electric or Time Off Defrost Winter Operation 26 11 Hot Gas Defrost Summer Operation 26 12 Hot Gas Defrost Winter Operation 26 13 Enviroguard Ill Control Set Ups 26 14 Enviroguard Ill Control Set Up for Comtrol MCS 4000 Controller 26 14 Comtrol Enviroguard Ill Operation 26 14 Comtrol Cond Fan Set Up Screen amp Procedure 26 14 Condenser Fan Group Set Up Screen 26 15 Comtrol Analog Set Up Screen 26 16 Comtrol Output Relay Set Up Screen 26 16 Comtrol Alarm Setpoints Screen 26 17 Enviroguard Ill Control Set Up for CPC s RMCC Controller 26 18 RMCC Controller Set Up 26 18 Sensor Set Up 26 18 Sensor Setpoints for Subcooling
14. ic Electronic Oil Pressure Control 19 1 Basic Operation 22 19 1 Installing Sentronic 19 2 Sentronic Illustration 19 2 To Install the Sensor 19 2 To Install the Module 19 3 Electrostatic Painting 19 3 Sentronic Troubleshooting 19 3 Electrical Connection Instructions 19 3 Standard Control Circuits amp Wiring Diagrams 19 4 Control with Alarm amp Wiring Diagrams 19 5 Using Current Sensing Relay to Prevent Nuisance Tripping of Pressure Control amp Wiring Diagrams 19 5 Using a Separate Control Voltage with the New Sentronic amp Wiring DIaSreri ada sapa pika DPRRERRSILRQCRPRRELSCRRERRER 19 6 Field Retrofit Considerations 19 7 Sentronic amp Sentronic Specifications 19 7 Electrical Checkout Procedure 19 8 20 Maintenance amp Troubleshooting 20 1 Maintenance bebe os HESS EERE SSS BEL NGGL NAG KESER SS DEES 20 1 Electrical sce dud NANANA AA poems ees ee sores 20 1 Refrigerant Piping 20 1 Troubleshooting
15. ng Chart 4 2 5 Electrical Supply Locations 5 1 Store Machine ROOM 5 1 Remote Electrical Defrost Panels 5 1 Panel to Panel Field Wiring 5 2 6 System Charging Requirements LL 6 1 Heat of Rejection Table 6 1 Selecting amp Using Refrigerant Charging Tables 6 1 R 22 amp R404A Receiver Charging Charts 6 2 Horizontal Receiver Capacity Parallels 6 3 June 2007 Table of Contents 1 PARALLEL COMPRESSORS TYLER amp ENVIROGUARD REFRIGERATION Page 7 Start Up Procedure 7 1 Leak Testing Procedure 7 1 Evacuation Procedure 7 2 Evacuation Methods 7 2 Parallel Charging amp Start Up Procedure 7 3 Follow These Precautions 7 3 Charging amp Start Up 7 3 Operational Check After Start Up 7 5 8 Oil Control System 0 0 cece 8 1 Oil SepaldiDI riii ka e Ear tem dr iba cd eee ate ac de dot 8 1 Oil Separator Operation
16. plication 24 14 Blank Worksheet for System Start Up 24 15 Adjusting the SPR 24 16 SPR Bleed Pressure at Various Ambients at Condenser Design 24 17 Low Temp with R507 Chart 24 17 Low Temp with R404A Chart 24 18 Low Temp with R 22 Chart 24 19 Medium Temp with R 507 Chart 24 20 Medium Temp with R404A Chart 24 21 Medium Temp with R 22 Chart 24 22 Setting the Normally Open Solenoid for Enviroguard 24 23 Adjusting the Branch Circuit Expansion Valve 24 23 Condenser Fan Settings 24 23 Enviroguard Settings Chart 24 24 Differential Pressure Settings for DDPR at Various Riser Heights Chart 24 24 Setting the DDPR for Enviroguard 24 25 Mechanical Liquid Subcooling Mechanical Liquid Subcooling Diagram 24 25 Servicing the System 24 26 Evaporative Condenser Settings 24 27 Low 8 Medium Temp System Example Charts 24 27 Evaporative Condenser Sensing Bulb Diagram 24 28 Gas Defrost Application 24 29 Application Guidelines
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