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P550W Series Air Dryer

Installation Guide

Before You Begin

Safety & Warning Information

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 fi le a claim with the
shipping company prior to continuing the
installation procedures.

2.

Read the entire Installation Guide to familiarize 

yourself with the components and procedures
before performing the air dryer installation.

3.

Verify the installation location of the air dryer:

• Well ventilated and free from abrasive

dust or chemicals.

• Ambient temperature is between

40° F and 85° F (optimal).

NOTE:

 Higher temperatures will

decrease component lifespan.

• Meets the following power

requirements:

• 110 - 125 VAC for

P550W, P550WH, and P550WLP.

• 208 - 253 VAC, 1 phase for

P552W, P552WH, and P552WLP.

• All models  require  50 / 60 Hz

with minimum 15 amp service
with a 10 amp slow blow fuse.

4.

Notify the alarm center of the installation

and potential for alarms during the process (if
applicable).

This guide covers basic air dryer installation and setup only.  Once installation is complete, please 

refer to the P550W Series User’s Guide for more advanced setup and con

fi

 guration options. 

P012115 - Rev. C

WARNING!

Extreme care should be exercised to 
avoid contact with live electrical circuits.  
Many procedures performed during 
installation 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!

High Noise.  Puregas air dryers are 
meant to be installed in an unattended 
area and are intended for network 
telecommunication facilities (non-
customer premises) only.

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!

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!

This Air Dryer does not contain an 
internal Surge Protection Device (SPD). 
If an SPD is required it must be supplied 
by the user.

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