Stulz SCS-024 - Default Chapter; Table of Contents

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INI-SPACE EC INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Table of Contents
1.0 Introduction ..................................................... 1
1.1 General ..............................................................................1
1.2 Product Description .....................................................1
1.3 Safety ................................................................................1
1.3.1 General ..............................................................................1
1.3.2 Safety Summary .............................................................1
1.4 General Design...............................................................3
1.4.1 Electric Box Access ......................................................3
1.4.2 Circuit Breakers / Motor Start Protectors ............3
1.4.3 Heaters (Optional) .........................................................3
1.4.4 Coil ......................................................................................4
1.4.5 EC Fan ...............................................................................4
1.4.6 Temperature/Humidity Sensor .................................4
1.4.7 Controller ..........................................................................4
1.5 Optional Equipment ......................................................4
1.5.1 Humidifi er (Optional) ....................................................4
1.5.2 Condensate Pump ........................................................4
1.5.3 Smoke Detector ............................................................4
1.5.4 Firestat .............................................................................4
2.0 Installation ....................................................... 5
2.1 Receiving the Equipment ............................................5
2.2 Site Preparation .............................................................5
2.3 Rigging ..............................................................................6
2.4 Mounting/Placement ...................................................6
2.4.1 Outdoor Equipment ......................................................7
2.5 Optional Equipment (Field Installed) .......................7
2.5.1 Floor Stand ......................................................................7
2.5.2 Plenum Box Assembly .................................................7
2.5.3 Remote Display ..............................................................7
2.5.4 Condensate Pump ........................................................8
2.5.5 Remote Temperature/Humidity Sensor ................8
2.5.6 Remote Water Detector ..............................................8
2.6 Air Distribution Connection ........................................8
2.6.1 Downfl ow Confi guration Air Patterns
(CCD/CCF) .......................................................................8
2.6.2 Upfl ow Confi guration Air Patterns
(CCU/CCR) ......................................................................8
2.7 Piping Connections ......................................................9
2.7.1 Refrigerant .......................................................................9
2.7.1.1 Self-Contained Systems .............................................9
2.7.1.2 Split Systems ..................................................................9
2.7.2 Water/Glycol, Chilled Water and Hot Water
Reheat Piping ..............................................................12
2.7.3 Pump Package ............................................................12
2.7.4 Condensate Drain Line .............................................12
2.7.4.1 Gravity Drain .................................................................12
2.7.4.2 Condensate Pump .....................................................12
2.7.5 Humidifi er .....................................................................12
2.8 Utility Connections .....................................................13
2.8.1 Main Power ...................................................................13
2.8.1.1 Single-Phase Units 208/230V ............................14
2.8.1.2 Three-Phase Units .....................................................14
2.8.2 Controls .........................................................................14
2.8.3 Optional Equipment ...................................................14
2.8.3.1 Condensate Pump .....................................................14
2.8.3.2 Remote Temperature/Humidity Sensor .............14
2.8.3.3 Remote Water Detector ...........................................15
2.8.4 Split Systems ...............................................................15
2.8.4.1 Glycol Systems ............................................................15
2.8.4.2 Remote Condenser....................................................15
2.9 System Charging Procedures ................................15
2.9.1 Water-Water/Glycol Cooled Systems ...................15
2.9.2 Pump ..............................................................................15
2.9.3 Remote Air-Cooled Systems ..................................15
2.9.4 Estimating Refrigerant Charge ..............................17
2.9.4.1 Preparing the System For Charging .....................17
2.9.4.2 Evacuate the System .................................................17
2.9.4.3 Refrigerant Charging Procedure .............................18
2.9.4.4 -30 °F Ambient Applications ..................................19
2.10 System Settings and Adjustments .......................19
2.10.1 Low/High Pressure Limit Switch .........................19
2.10.2 Head Pressure Controls-Air Cooled Systems ..20
2.10.2.1 -20°F Condenser Fan Speed ................................20
2.10.2.2 -30°F Flooded Head Pressure Control ..............20
2.10.3 Head Pressure Controls-Water/Glycol
Cooled Systems ..........................................................20
2.10.4 Humidifi er Adjustment ..............................................20
2.10.5 Thermal Expansion Valve .........................................20
2.10.6 Hot Gas Reheat (Optional).......................................21
2.10.7 Snap Acting Hot Gas Bypass (Optional) .............21
2.11 Refrigerant Characteristics .....................................21