Puregas P1500W Series User manual

P011787 – Rev. J
P1500W Series Air Dryers
User’s Guide
Models covered:
P1500W P1500WLP P1502W P1502WLP

PUREGAS, LLC P1500W Series Air Dryers User’s Guide
Page 3 of 100 P011787 – Rev. J
1. Welcome & Congratulations
Congratulations on your purchase of a new PUREGAS P1500W Series Air Dryer! We
here at PUREGAS are very proud of our products and we are committed to providing you
with the best value and service possible.
We are sure that you will be satisfied with your new air dryer and would like to thank you
for choosing PUREGAS for your air dryer requirements. We also hope that you will
continue to choose us for your future air pressure and related product purchases.
For information about this and other PUREGAS products, please visit us on the web at:
www.puregas.com
2. Introduction
PLEASE READ THIS USER’S GUIDE THOROUGHLY AND SAVE FOR
FUTURE REFERENCE.
This User’s Guide is provided for the benefit of our customers and contains information
and direction specific to the PUREGAS P1500W Series Air Dryers. Models covered
include P1500W, P1500WLP, P1502W and P1502WLP. This guide covers topics
including: safety, specifications, installation, registration, operation, testing, maintenance,
replacement parts, service, and troubleshooting issues. Observation and compliance with
this User’s Guide will ensure the maximum life and efficiency of your air dryer.
This User’s Guide should be read thoroughly prior to installing, operating, or servicing
the air dryer in order to become familiar with the recommended procedures. This will
minimize the possibility of personal injury or damage to the unit due to improper
operation or handling.

PUREGAS, LLC P1500W Series Air Dryers User’s Guide
Page 4 of 100 P011787 – Rev. J
3. Table of Contents
1. Welcome & Congratulations.......................... 3
2. Introduction..................................................... 3
3. Table of Contents............................................. 4
4. Safety & Warning Information...................... 6
5. Overview & Specifications.............................. 9
5.1 Product Description.................................... 9
5.2 Key Features............................................... 9
5.3 P1500W Series Air Dryer Models.............. 9
5.4 Technical Specifications........................... 10
5.5 Dryer Function Overview......................... 11
6. Installing Your Dryer.................................... 12
6.1 Safety & Warning Information................. 12
6.2 Before You Begin..................................... 13
6.3 Included Contents..................................... 14
6.4 Required Tools and Materials................... 14
6.5 Installation Steps....................................... 15
6.6 Installation Checklist................................ 22
7. Registering Your Dryer ................................ 23
8. Operating Your Dryer .................................. 24
8.1 Safety & Warning Information................. 24
8.2 Connecting Air Supply Line to the Dryer. 25
8.3 Powering the Dryer ON & OFF................ 26
8.4 Using the Front Panel Display.................. 27
8.5 Identifying Dryer Alarms ......................... 29
8.6 Adjusting & Resetting Dryer Set Points... 31
8.7 Open Front Panel...................................... 39
8.8 Depressurizing the Dryer.......................... 39
8.9 Setting the System Pressure...................... 40
8.10 Setting the Static Pressure ...................... 40
8.11 Setting the Outlet Pressure...................... 41
8.12 Connecting to Common Alarm
Terminals........................................................ 42
8.13 Connecting to Power Fail Alarm
Terminals........................................................ 43
8.14 Connecting via Web Browser.................44
8.15 Using the Status Screen .......................... 46
8.16 Using the Config Screen......................... 49
8.17 Using the Event Screen........................... 52
8.18 Using the Alarm Screen.......................... 53
8.19 Using the Firmware Screen..................... 54
8.20 Connecting via SNMP............................ 56
9. Testing Your Dryer .......................................57
9.1 Safety & Warning Information................. 57
9.2 Measuring Compressor Amp Draw .......... 58
9.3 Measuring Compressor Voltage ...............59
9.4 Measuring Incoming Voltage ................... 60
9.5 Measuring Voltages at Solid State Relay.. 61
9.6 Testing Consistent Heatless Dryer
Cycling............................................................ 63
9.7 Testing Unloader Valve............................ 65
9.8 Measuring Heatless Dryer Solenoid
Voltage............................................................ 66
9.9 Testing Air Dryer Fan............................... 67
9.10 Testing Safety Relief Valve....................67
9.11 Testing Compressor ON/OFF Cycling ...68
9.12 Testing High Compressor Last Run
Time Alarm..................................................... 69
9.13 Testing Humidity Alarm and System
Shutdown........................................................ 70
9.14 Testing High Outlet Pressure Alarm....... 72
9.15 Testing Low Outlet Pressure Alarm .......73
9.16 Testing Air Fittings & Hoses for Leaks..74
10. Maintaining Your Dryer............................. 75
10.1 Safety & Warning Information............... 75

PUREGAS, LLC P1500W Series Air Dryers User’s Guide
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10.2 Six Month Maintenance.......................... 77
10.3 8,000 Hour Maintenance ........................ 78
11. Replacement Parts & Accessories.............. 79
11.1 Dryer Parts.............................................. 79
11.2 Dryer Parts cont...................................... 80
11.3 Heatless Dryer Assembly Parts............... 81
11.4 Accessories for Your Dryer.................... 82
11.5 Ordering Parts from PUREGAS............. 83
12. Service & Repair.......................................... 84
12.1 Services Offered..................................... 84
12.2 Initiating a Service Transaction.............. 84
13. Troubleshooting Your Dryer...................... 85
13.1 Before You Call PUREGAS................... 85
13.2 Safety & Warning Information............... 85
13.3 Air Dryer Won’t Power ON ................... 86
13.4 Display Screen Not Functioning............. 87
13.5 High Outlet Pressure Alarm.................... 87
13.6 Can’t Create a High Pressure Alarm....... 87
13.7 Low Outlet Pressure Alarm.................... 88
13.8 Can’t Create a Low Pressure Alarm....... 88
13.9 High Humidity........................................ 89
13.10 Can’t Create a High Humidity Alarm /
Shutdown........................................................ 90
13.11 High Flow Rate Alarm.......................... 90
13.12 High Cabinet Temperature Alarm ........ 90
13.13 Inconsistent Heatless Dryer Cycling..... 91
13.14 Compressor Doesn’t Operate................ 91
13.15 Compressor Won’t Build Pressure........92
13.16 Compressor Excessive AMP Draw....... 92
13.17 High Compressor Last Run Time
Alarm.............................................................. 93
13.18 Can’t Create a High Compressor Last
Run Time Alarm............................................. 93
13.19 Compressor Rapid ON/OFF Cycling.... 94
13.20 Contacting PUREGAS Technical
Support............................................................ 94
14. Appendix ......................................................95
14.1 Wiring Diagram...................................... 95
14.2 Set Point Limits and Defaults................. 96
14.3 SNMP Parameters................................... 97
15. Limited Warranty Agreement.................... 98
Registration Reminder.................................... 98
16. Contacting PUREGAS ................................ 99
16.1 General.................................................... 99
16.2 Sales........................................................ 99
16.3 Service .................................................... 99
16.4 Technical Support................................... 99
17. Notes............................................................100

PUREGAS, LLC P1500W Series Air Dryers User’s Guide
Page 6 of 100 P011787 – Rev. J
4. Safety & Warning Information
This section contains general information about safety and warning points to consider and
adhere to during installation, operation, and maintenance of your air dryer. PLEASE
READ THIS SECTION BEFORE PERFORMING ANY OPERATION OR
PROCEDURE ON YOUR AIR DRYER.
Additional warnings specific to an operation or procedure will also be presented
throughout the following sections. These will include the symbol as well as a label of
“WARNING!”, “CAUTION!”, or “IMPORTANT!”. Please be sure to pay close
attention for these warnings and read them as you encounter them.
WARNING!
For your safety, all the information in this User’s Guide must be
followed to minimize the risk of electrical shock, and prevent
property damage or personal injury.
WARNING!
Extreme care should be exercised to avoid contact with live
electrical circuits. Many procedures performed during installation,
operation, testing, and maintenance of this air dryer require the
equipment to be running, creating a situation for potential electrical
shock. It is highly recommended that you remove all jewelry before
performing any procedures.
WARNING!
Internal surfaces may be hot. Use care when coming into contact
with internal components as there is a potential for some of these
components to become hot when in operation or standby.
WARNING!
High Noise. PUREGAS air dryers are meant to be installed in an
unattended area.

PUREGAS, LLC P1500W Series Air Dryers User’s Guide
Page 7 of 100 P011787 – Rev. J
CAUTION!
Depressurizing the air dryer may be necessary before performing
certain procedures. NEVER remove pressure sensing tubes from the
Control Board without depressurizing the air dryer first, or damage to
the Control Board will occur.
IMPORTANT!
Performing procedures not described in this User’s Guide or installing
components not supplied by PUREGAS is NOT RECOMMENDED
AND MAY VOID THE WARRANTY.
IMPORTANT!
Performing routine maintenance as outlined in the Maintaining Your
Dryer section will ensure optimal performance over the lifecycle of
y
our air dr
y
er.
CAUTION!
Incoming power to dryer must be:
•15 amp service recommended
•10 amp slow blow fuse
•110 - 125 VAC, 50/60 Hz for P1500W & P1500WLP models
•208 - 230 VAC, 50/60 Hz, 1 Phase for P1502W & P1502WLP
models
CAUTION!
Proper Installation & Maintenance as outlined in this User’s Guide is
extremely important to ensure the reliability and longevity of the
equipment as well as prevent damage or personal injury.

PUREGAS, LLC P1500W Series Air Dryers User’s Guide
Page 8 of 100 P011787 – Rev. J
CAUTION!
This Air Dryer does not contain an internal Surge Protection Device
(SPD). If an SPD is required it must be supplied by the user.
CAUTION!
Observe precautions for handling Electrostatic Sensitive Devices.
IMPORTANT!
Installation of PUREGAS air dryers are intended for network
telecommunication facilities (non-customer premises) only.

PUREGAS, LLC P1500W Series Air Dryers User’s Guide
Page 9 of 100 P011787 – Rev. J
5. Overview & Specifications
5.1 Product Description
The P1500W Series Air Dryers from PUREGAS are designed to intake wet ambient
air and remove the moisture for delivery to applications requiring a constant, on-
demand source of dry, pressurized air. This process is fully automatic and will
remain consistent with minimal required periodic maintenance. These dryers are
designed specifically for indoor use.
The P1500W Series Air Dryers employ a fully digital operating platform offering the
most accurate readings of dryer variables, removable access panel allowing easier
access for adjustment and maintenance, and ultra quiet compressor with an industry
leading maintenance interval of 8,000 hours.
5.2 Key Features
•LCD display of all operating parameters
•Solid state microprocessor-based circuitry eliminates costly maintenance
•Accurate humidity sensing within ±0.1% RH
•Quietest dryer on the market - less than 50 dBA
•Oil-less compressors with 8,000 hour maintenance interval
5.3 P1500W Series Air Dryer Models
Model Description
P1500W 110 - 125 VAC, Standard Pressure 2 - 15 PSI
P1500WLP 110 - 125 VAC, Low Pressure 0.30 – 7.50 PSI
P1502W 208 - 230 VAC, Standard Pressure 2 - 15 PSI
P1502WLP 208 - 230 VAC, Low Pressure 0.30 – 7.50 PSI

PUREGAS, LLC P1500W Series Air Dryers User’s Guide
Page 10 of 100 P011787 – Rev. J
5.4 Technical Specifications
P1500W P1500WLP P1502W P1502WLP
Output
Capacity
Normal: Up to 1200 SCFD continuous
Maximum: 1500 SCFD emergency
Power
Requirements
110 - 125 VAC,
50/60 Hz, 7.0 Amps 208 – 230 VAC, 1 Phase, 50/60 Hz, 3.5 Amps
Outlet
Pressure
Range
2 – 15 PSI 0.30 – 7.50 PSI 2 – 15 PSI 0.30 – 7.50 PSI
Outlet Air
Humidity
Less than 2% RH
Compressor
Type
Two-cylinder, 3/4 HP, oil-less type Two-cylinder, 1/2 HP, oil-less type
Drying
Method
Heatless Desiccant
Operating
Temperature
Range
40° to 85° F (optimal)
Noise Level
48 dBA at 10’
Alarms
Standard alarms – complete readings of all critical measurement points,
individual alarm indication display
Outlet
Connections
3/8” O.D. tube fitting
Dimensions
12” D x 17.25” W x 27” H
Net Weight
80 lbs

PUREGAS, LLC P1500W Series Air Dryers User’s Guide
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5.5 Dryer Function Overview
Component Description
1 Compressor Compresses drawn in ambient air.
2 Unloader Valve Relieves excess Compressor head pressure.
3 Unloader Valve Exhaust Exhausts the air from the Unloader Valve.
4 In-Line Cooler Cools compressed air prior to drying function.
5 Heatless Dryer Removes moisture from compressed air.
6 Capacity Control Valve Regulates System Pressure and prevents air from
bleeding back through the Heatless Dryer.
7 Humidity Sensor Measures the Humidity of the compressed air.
8 Air Tank Stores dry compressed air.
9 Static Pressure Regulator Regulates the Static Pressure (17 PSI).
Maintains constant pressure on the Flow Block
for accurate Flow measuring.
10 Flow Block Measures the Flow Rate of compressed air.
11 Outlet Pressure Regulator Regulates the Outlet Pressure.
12 Pressure Outlet Outputs the pressure set by the Outlet Pressure
Regulator.

PUREGAS, LLC P1500W Series Air Dryers User’s Guide
Page 12 of 100 P011787 – Rev. J
6. Installing Your Dryer
6.1 Safety & Warning Information
WARNING!
Extreme care should be exercised to avoid contact with live
electrical circuits. Many procedures performed during installation,
operation, testing, and maintenance of this air dryer require the
equipment to be running, creating a situation for potential electrical
shock. It is highly recommended that you remove all jewelry before
performing any procedures.
WARNING!
Internal surfaces may be hot. Use care when coming into contact
with internal components as there is a potential for some of these
components to become hot when in operation or standby.
CAUTION!
Proper Installation & Maintenance as outlined in this User’s Guide is
extremely important to ensure the reliability and longevity of the
equipment as well as prevent damage or personal injury.
CAUTION!
Incoming power to dryer must be:
•15 amp service recommended
•10 amp slow blow fuse
•110 - 125 VAC, 50/60 Hz for P1500W & P1500WLP models
•208 - 230 VAC, 50/60 Hz, 1 Phase for P1502W & P1502WLP
models

PUREGAS, LLC P1500W Series Air Dryers User’s Guide
Page 13 of 100 P011787 – Rev. J
6.2 Before You Begin
6.2.1 Carefully inspect the unit, including the shipping box as well as the air
dryer, for ANY DAMAGE CAUSED BY SHIPPING. If any shipping
damage is detected, it is important to file a claim with the shipping
company prior to continuing the installation procedures.
6.2.2 Read the entire Installing Your Dryer section to familiarize yourself with
the components and procedures before performing the air dryer installation.
6.2.3 Verify the installation location of the air dryer:
6.2.3.1 Well ventilated and free from abrasive dust or chemicals.
6.2.3.2 Ambient temperature is between 40° and 85° F (optimal).
NOTE: Higher temperatures will decrease component lifespan.
6.2.3.3 Meets the following power requirements:
•15 amp service recommended
•10 amp slow blow fuse
•110 - 125 VAC, 50/50 Hz for P1500W & P1500WLP models
•208 - 230 VAC, 50/60 Hz, 1 Phase for P1502W & P1502WLP models
6.2.4 Notify the alarm center of the installation and potential for alarms during
the process (as necessary).
IMPORTANT!
Performing procedures not described in this User’s Guide or installing
components not supplied by PUREGAS is NOT RECOMMENDED
AND MAY VOID THE WARRANTY.
WARNING!
High Noise. PUREGAS air dryers are meant to be installed in an
unattended area.

PUREGAS, LLC P1500W Series Air Dryers User’s Guide
Page 14 of 100 P011787 – Rev. J
6.3 Included Contents
(1) P1500W Series Air Dryer
(1) Installation Guide (not shown)
Package located inside the dryer:
(1) 120 VAC Power Cord (for P1500W & P1500WLP models)
(1) 220 VAC Power Cord (for P1502W & P1502WLP models)
(1) Tee Tube Union
(1) User’s Guide (not shown)
(1) Mini CD (not shown)
6.4 Required Tools and Materials
•9/16” wrench
•Cup of soapy water
•1-inch paint brush (recommended)
•Box cutter

PUREGAS, LLC P1500W Series Air Dryers User’s Guide
Page 15 of 100 P011787 – Rev. J
6.5 Installation Steps
6.5.1 Using a box cutter remove
the Dryer from box and all
shipping materials.
NOTE: If ANY SHIPPING
DAMAGE is detected, file a
claim with the shipping
company prior to continuing
the installation procedures.
6.5.2 Open front panel latches
and remove the front panel.
6.5.3 Check for loose parts,
hoses, or wiring.
NOTE: If ANY SHIPPING
DAMAGE is detected, file a
claim with the shipping
company prior to continuing
the installation procedures.

PUREGAS, LLC P1500W Series Air Dryers User’s Guide
Page 16 of 100 P011787 – Rev. J
6.5.4 Remove the ship-loose
contents package.
6.5.5 Remove and discard the
three packing foam blocks
from around the compressor.
6.5.6 Place the dryer at the desired operating location:
•Place the dryer on a leveled surface
•For rack install use Universal Rack Mounting Kit P011674 (section
11.4 )
•For wall install use Wall Mounting Kit P011773 (section 11.4 )
6.5.7 Verify that the dryer is
powered OFF.

PUREGAS, LLC P1500W Series Air Dryers User’s Guide
Page 17 of 100 P011787 – Rev. J
6.5.8 Plug AC Power Cord to
dryer.
6.5.9 Wire or plug the power
cord into:
•110 - 125 VAC power
outlet for P1500W &
P1500WLP models.
•208 - 230 VAC, 1 phase, power outlet for P1502W & P1502WLP.
oLine – Black (Brown)
oNeutral – White (Blue)
oGround – Green (Green/Yellow)
6.5.10 Power the dryer ON.
NOTE: The compressor and
heatless dryer will start,
creating air flow through the
Outlet Port.
6.5.11 Set the System Pressure:
With Compressor running:
6.5.11.1 Pull the Capacity
Control Valve knob out.

PUREGAS, LLC P1500W Series Air Dryers User’s Guide
Page 18 of 100 P011787 – Rev. J
6.5.11.2 Turn the knob until
the reading on the
pressure gauge is 80
PSI.
6.5.11.3 Push the knob in to
lock.
6.5.12 Let the dryer run until the
Humidity drops below 2%
(may take up to 15 minutes).
NOTE: Press the RESET
Button if the dryer goes into
SHUTDOWN mode.
6.5.13 Power the dryer OFF.
6.5.14 Remove the Precision
Bleed orifice from the Outlet
Port.
NOTE: Save this orifice for use in
low flow applications.

PUREGAS, LLC P1500W Series Air Dryers User’s Guide
Page 19 of 100 P011787 – Rev. J
6.5.15 Connect the air supply line
to the Outlet Port.
NOTE: For all dryers with minimal flow:
Install the Tee Tube Union
and the Precision Bleed
Orifice to maintain a constant
air flow. (The orifice was
removed in step 6.5.14 ).
6.5.16 Power the dryer ON.

PUREGAS, LLC P1500W Series Air Dryers User’s Guide
Page 20 of 100 P011787 – Rev. J
6.5.17 Set the Static Pressure:
6.5.17.1 Pull Static Pressure
Regulator knob out.
6.5.17.2 Turn knob until the
reading on the pressure
gauge is 17 PSI.
6.5.17.3 Push knob in to lock.
6.5.18 Set the Outlet Pressure:
6.5.18.1 Pull the Outlet
Pressure Regulator knob
out (or loosen the
retaining nut – LP
Models).