Stulz SCS Series - Introduction; General; Product Description; Safety

-SCS CONDENSER IOM MANUAL
Table of Contents
2.6.1.2 Receiver Heater Wiring .............................................. 14
2.7 System Charging .......................................................... 14
1.0 Introduction…………………...…..………………….1
1.1 General. ............................................................................... 1
1.2 Product Description ........................................................ 1
1.2.1 Capabilities and Features ............................................. 1
1.2.1.1 Safety Features ................................................................ 1
1.2.2 Application Ranges ......................................................... 1
1.3 Safety .................................................................................. 2
1.3.1 General. ............................................................................... 2
1.3.2 Safety Summary ............................................................... 2
1.4 General Design ................................................................. 3
1.4.1 Condenser Coil ................................................................. 3
1.4.1.1 -SCS Condenser Coils ................................................... 3
1.4.1.2 -SCS-MC Micro-Channel Condenser Coils ............ 3
1.4.2 Fan Assembly .................................................................... 5
1.4.3 Electric Box ....................................................................... 5
1.4.4 Receiver (Optional) .......................................................... 5
1.5 Head Pressure Controls ................................................ 5
1.5.1 Condenser Fan Cycling (AA Models) ......................... 5
1.5.2 Variable Condenser Fan Speed (SA Models) .......... 5
1.5.3 Flooded Head Pressure Control ................................. 6
2.0 Installation ..................................................... 8
2.1 Receiving the Equipment .............................................. 8
2.2 Site Preparation ............................................................... 8
2.3 Rigging ................................................................................ 8
2.4 Mounting/Placement ..................................................... 8
2.4.1 Receiver ........................................................................... 10
2.4.1.1 Head Pressure Control Valve ...................................... 10
2.5 Refrigerant Piping ........................................................ 10
2.5.1 Refrigerant Line Sizing................................................ 10
2.5.1.1 Discharge Line ............................................................... 11
2.5.1.2 Liquid Line....................................................................... 12
2.5.2 Head Pressure Control Valve Installation (
SCS condenser only) ................................................... 12
2.5.3 Receiver Pipe Installation (SCS condenser
only) ................................................................................... 13
2.6 Utility Connections ....................................................... 13
2.6.1 Main Power and Control Wiring ............................... 13
2.6.1.1 Condenser Enable Feature ....................................... 14
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2.7.2 Estimating Refrigerant Charge ................................ 15
2.7.3 Preparing System For Charging ............................... 17
2.7.4 Refrigerant Charging Procedures ........................... 18
2.7.4.1 0 ºF Fan Cycling and -20 ºF Variable Speed
Control.............................................................................. 18
2.7.4.2 -30 °F Flooded Head Pressure Control ................ 19
2.7.4.2.1 Checking the Charge ................................................... 19
2.7.4.2.2 Final Adjustment ........................................................... 20
2.8 Refrigerant Characteristics ....................................... 20
2.8.1 Pressure/Temperature Settings .............................. 20
2.8.2 Saturated Refrigerant Pressure Tables .................... 20
3.0 Start-Up/Commissioning ............................ 21
3.1 Operation ........................................................................ 21
3.2 Step by Step Start-Up Instructions......................... 21
3.3 Operational Description ............................................. 21
4.0 Maintenance/Repairs .................................. 22
4.1 Periodic General Maintenance ................................. 22
4.1.1 General. ............................................................................ 22
4.2 Field Service ................................................................... 23
4.2.1 Leak Detection .............................................................. 23
4.2.2 Leak Repair .................................................................... 23
4.2.3 Refrigerant Piping ........................................................ 23
4.2.4 Electrical System .......................................................... 23
4.3 Troubleshooting ............................................................ 23
5.0 Product Support .......................................... 25
5.1 Technical Support ......................................................... 25
5.2 Obtaining Warranty Parts ........................................... 25
5.3 Obtaining Spare/Replacement Parts .................... 25