PUREGAS, LLC
P550W2 Series Air Dryers User’s Guide
Page 4 of 99
P012226 – Rev. F
3. Table of Contents
1. Welcome & Congratulations .......................... 3
2. Introduction ..................................................... 3
3. Table of Contents ............................................. 4
4. Safety & Warning Information ...................... 6
5. Overview & Specifications .............................. 8
5.1 Product Description .................................... 8
5.2 Key Features ............................................... 8
5.3 P550W2 Series Air Dryer Models .............. 8
5.4 Technical Specifications ............................. 9
5.5 Dryer Function Overview ......................... 10
6. Installing Your Dryer .................................... 11
6.1 Safety & Warning Information ................. 11
6.2 Before You Begin ..................................... 12
6.3 Included Contents ..................................... 13
6.4 Required Tools and Materials ................... 13
6.5 Installation Steps ....................................... 14
6.6 Installation Checklist ................................ 23
7. Registering Your Dryer................................. 23
8. Operating Your Dryer .................................. 24
8.1 Safety & Warning Information ................. 24
8.2 Connecting Air Supply Lines to the Dryer 25
8.3 Depressurizing the Dryer .......................... 26
8.4 Powering the Dryer ON & OFF ................ 26
8.5 Using the Front Panel Display .................. 27
8.6 Identifying Dryer Alarms ......................... 29
8.7 Adjusting & Resetting Dryer Set Points ... 31
8.8 Open Panel ................................................ 39
8.9 Setting the System Pressure ...................... 39
8.10 Setting the Static Pressure ...................... 40
8.11 Setting the Outlet Pressure ...................... 40
8.12 Connecting to Common Alarm
Terminals ........................................................ 41
8.13 Connecting to Power Fail Alarm
Terminals ........................................................ 42
8.14 Connecting via Web Browser ................. 43
8.15 Using the Status Screen .......................... 45
8.16 Using the Config Screen ......................... 48
8.17 Using the Event Screen ........................... 51
8.18 Using the Alarm Screen .......................... 52
8.19 Using the Firmware Screen ..................... 53
8.20 Connecting via SNMP ............................ 55
9. Testing Your Dryer ....................................... 56
9.1 Safety & Warning Information ................. 56
9.2 Measuring Compressor Amp Draw .......... 57
9.3 Measuring Compressor Voltage ............... 58
9.4 Measuring Incoming Voltage ................... 60
9.5 Measuring Voltage from AC Step-Down
Transformer .................................................... 61
9.6 Testing Consistent Heatless Dryer
Cycling............................................................ 62
9.7 Testing Unloader Valve ............................ 64
9.8 Measuring Heatless Dryer Solenoid
Voltage............................................................ 65
9.9 Testing Air Dryer Fan ............................... 66
9.10 Testing Compressor ON/OFF Cycling ... 66
9.11 Testing High Duty Cycle Alarm ............. 68
9.12 Testing Humidity Alarm and System
Shutdown ........................................................ 69
9.13 Testing High Outlet Pressure Alarm ....... 71
9.14 Testing Low Outlet Pressure Alarm........ 72
9.15 Testing Air Fittings & Hoses for Leaks .. 73
Summary of Contents for P550W2 Series
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