Apollo Desiccant Air Dryer User manual

Installation Instructions

Desiccant Air Dryer System

ACADAD5 & 15

Description:

The Desiccant Air Dryer (DAD) System provides an excellent alternative to Refrigerated Air Dryers. The DAD dryer is of the regenerative desiccant
type that will provide for clean, dry air to -40 degrees Fahrenheit pressure dew points automatically. DAD systems are delivered complete with
compressor pressure switch unloader/controller, oil removal filter, electronic drain valve, moisture indicator, desiccant, purge chamber(s),
associated flow controls, and manual regeneration valve. DAD systems can be installed on most existing compressor installations, but must be
sized according to maximum compressor air flow.

Maintenance:

DAD system should be installed within 5 feet of the air compressor package and interconnected between the compressor head(s) and storage
tank, so that only clean, dry air enters the storage tank. A standard 115V wall plug is required. The ACADAD5 and ACADAD15 should be wall
mounted with the supplied 3/8” lag bolts to wall studs spaced 16 inch on center.

Note: Choose a wall where sound from the dryer in not objectionable, as this system will produce

a small amount of noise during operation.

115VAC Outlet

Wet Air In From
Compressor

17' Intercooler

3/8" Tubing

DO NOT SHORTEN

Pressure Switch
Unloader Line
(5') 1/4" Tubing

Manual Purge
Valve Closed

Ultair
Filter

Flow Control
Valve

Air Tank
Check Valve

Purge Tank

Dryer Tank

Purge Tank

Moisture
Indicator

Dry Air Out To
Storage Tank
(5') 3/8" Tubing

Condensate
Drain Line

Condensate
Drain Canister

Warranty Information: (90 Days)

All ADP accessories are thoroughly inspected and tested in accordance with rigid specifications and standards. Our accessories are guaranteed against any
defective material and workmanship from the date of shipment; provided that the installation, operation, and maintenance is done in accordance with ADP
procedures as outlined in our Installation and Maintenance Guides. Warranty cards must be returned to ADP within ten days of installation to effect warranty.
No other warranties or guarantees, expressed or implied are made.

ADP’s obligation under the warranty is to provide parts for the repair or, at its option, to provide the replacement product (excluding labor). All special,
incidental and/or consequential damages are excluded. We will not issue credit for accessories without first attempting to correct the problem in the field.
Written notice of breach of warranty must be given to ADP within the warranty period. The warranty does not cove damage resulting form improper
installation or maintenance, accident or misuse. The warranty does not cover damage resulting from the use of cleaning, disinfecting or sterilizing chemicals
and processes. Failure to follow instructions provided in ADP’s Installation and Maintenance Guides may void the warranty.

Apollo Dental Products, Inc. • 245 W. Dakota Ave. • Clovis, CA 93612 • Technical Support

559/292-1444 • 800/233-4151 • Fax [phone] • www.apollodental.com

Page 1

AMI60393 Rev. 1/02

Installation Instructions

Desiccant Air Dryer System

Technical Service - [phone]

Compressor Package Preparation:

1. Disconnect electrical power to air compressor at main circuit breaker panel.

2. Open the drain valve located on the underside of the air storage tank to expel all moisture which may have accumulated.
Close valve when completely purged.

3. Remove the existing compressor pressure switch and replace with the combination pressure switch/unloader provided
with the DAD system.

Note: Prior to disconnecting the pressure switch wires, label or mark the individual wires so that the
exact duplication of line and load connections is maintained when installing the new switch.

4. Remove compressor discharge line copper tubing connected between the discharge flex hose(s) and the entrance to the
air storage tank.

5. On twin head compressors, install discharge flex “T” block.

6. Remove the air storage tank check valve located at the storage tank entrance. The DAD system is equipped with a
storage tank check valve at the purge gauge assembly to facilitate manual purge operation.

Important: Failure to remove check valve may result in poor/abnormal performance.

Installing The DAD System (Refer to installation diagram on Page 1):

1. Install the 3/8” outlet copper tube connecting the DAD purge gauge/moisture indicator elbow compression fitting to the
entrance of the air compressor storage tank.

2. Install the 3/8” inlet copper tube connecting compressor discharge flex hose with compression tube fitting at the entrance
to the Ultair Filter on the DAD system.

Note: Use all copper tubing supplied to make loop. (See diagram on page 1).

3. Install the 1/4” copper tube from the elbow compression fitting at the outlet of the DAD Ultrair filter to the compression
fitting of the compressor pressure switch unloader valve.

4. Check to ensure the bypass valves are in correct operating position.

5. Plug the 115V line cord into a 115V receptacle. Reconnect electrical power, and restart compressor.

6. Check that the DAD purge gauge and compressor storage tank gauge pressurize, and the compressor shuts off at 100
PSI, and automatically unloads the DAD system.

7. Check all tubing connections on the DAD and compressor package for any leaks with soapy-water solution.

Important: Seal all leaks.

Page 2 AMI60393 Rev. 1/02