Technical Bulletin AS-1

Converting an Alpha Sun 30VL (Virtual Sun 30) remote timer system from low voltage to high voltage.

DANGER!  HIGH VOLTAGE!  RISK OF INJURY OR DEATH!   YOUR TANNING BED CONTAINS HIGH VOLTAGES AND IF IMPROPERLY MODIFIED OR MAINTAINED, CAN CREATE A SAFETY HAZARD THAT CAN CAUSE INJURY OR DEATH.  NEVER WORK ON YOUR TANNING BED WHILE IT IS CONNECTED TO POWER.  NEVER WORK ON YOUR TANNING BED IF YOU ARE NOT A LICENSED ELECTRICIAN OR AUTHORIZED LICENESED TANNING BED SERVICE AGENGY.   ALWAYS USE SAFETY EQUIPMENT, INCLUDING GOOGLES, AND TEST FOR THE PRESENCE OF ELECTRICITY BEFORE BEGINNING ANY REPAIR OR MODIFICATION.

This document covers the procedures needed to convert your AS30VL tanning bed to a high voltage remote system.  The 30VL came standard with a 24V low voltage relay coil and transformer that can be undesirable in certain installations that have unreliable 3 phase power or where a high voltage feed is necessary to longer cable runs being needed.  In order to convert your system, you will need a Telemechanique relay with a 220V coil, available from your authorized Alpha Sun dealer.  No other parts are needed.  You will only need basic tools:  Phillips and standard screw drivers, volt meter, and wire cutters/stripers.  The complete conversion can be done in about 1 to 2 hours.  It will take two persons to remove and re-install the canopy.  It will require one person to install the new electronics.

It is strongly recommended that you read this entire bulletin and understand it before you begin.  You should follow the directions carefully, and take all precautions to prevent accidental injury.  IF you follow the instructions, this is a very simple conversion and you should not expect any trouble.  There are several images, and you may consider printing this page out before you begin so you can refer to it later.

Directions for conversion:

1.  Remove the tanning bed from all power sources by unplugging or turning off the breaker at the main panel.  Test by attempting to turn the tanning bed on and using your volt meter.

2.  Disassemble the canopy from the rest of the tanning bed.  Refer to the owners manual for exact instructions, but it basically means removing the two cylinders and the two screws that hold the canopy to the bench.  Place on a flat, carpeted surface.  Be sure to disconnect the bed cord that connects the bench to the canopy, and the remote timer plug if a remote timer is currently installed.

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3.  Remove the 6 screws that hold the blue acrylic strips into place, then gently remove the acrylic itself.  It can be stored standing up, leaning against a wall to keep it from getting dirty.

4.  Remove all lamps and put them to the side.

5.  Remove the white acrylic support that covers the aluminum reflector toward the front of the tanning bed.  There should be two screws holding it into place.astb1-b.jpg (37668 bytes)

6.  You should now put on a pair of clean work gloves.  Remove the six screws that hold the pan reflector into place.  Slide the reflector toward the front or back, and gently press one edge to get it out of place.  DANGER!  THE EDGES ARE EXTREMELY SHARP AND CAN CUT YOU!  Now you should have access to the electronics in the center of the tanning bed.

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7.  Bend the keeper tab on the bracket that holds the relay into place so it is perpendicular to the ground.  Slide the old relay out of place, and tilt up so you can gain access to the set screws.  Set the new 220V coil relay next to it, in the same orientation (L side to L side, T side to T side).

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8.  Now we begin to swap the wires from the old relay to the new.  Move the wires in pair sets, starting with 2T1 and 4T2, 6T3 and 8T4, then on the other side, 1L1 and 3L2, 5L3 and 7L4.  Move the brown wire located at coil tap A1 to the new relay at A1.  Do not move the wire at A2.  Instead, just disconnect A2 on the old relay, and set the old relay to the side.  You are done with it.

9.  Remove the two screws holding the transformer in place, so you can gain access to the wires.  There is a purple wire that connects to the primary side of the transformer (it is wire jumped to a blue wire elsewhere in the bed).  You should cut this wire close to the transformer itself, and strip the end of the wire back about 3/8".  Connect this purple wire to the A2 terminal on top of the new relay.   The relay is now fully wired.

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10.  Follow the black wire on the primary side of the transformer back to the wiring block.  Disconnect it using the screw set at the wiring block. 

11.  On the secondary side of the transformer, you will find a brown wire.   Cut it off near the transformer and strip the end about 3/8".  Connect this brown wire to the terminal block in the vacant spot you created when you removed the black wire.    As you will notice, this brown wire is already connected to the terminal block at point 6, and now you are connecting it at point 2 as well.  You can now set the transformer to the side.

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12.  Turn the relay back on its side, and reinstall.  Do NOT try to slide it back over the pins the same way you took it off.  It will not go on this way.   Follow the diagram's steps 1 and 2.  Hook the back section of the clip FULLY onto the bracket, then slide the front end over the bracket.  It will go on easily this way.

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13.  Now you can push any wires down to get them out of the way, reinstall the pan reflector, white acrylic support, lamps and acrylic, then reassemble the tanning bed.   Your tanning bed now is fully functional with a 220V relay system, and a 220V remote timer feed.  Be sure that you use only proper wire and conduit for this high voltage feed.  See your local code for more information on what SO cables and conduits are recommended.

This file was created 11 APR 05 by dlb.


This page is presented for informational purposes only, and is presented AS-IS with no warranty as to useability or fitness for any application.  Modifications to any system should only be done by authorized personel or licensed electricians with authorization from UVA SunSystems, Inc.  UVA SunSystems, Inc. is not responsible for any typographical errors, omitted information, misuse, use, hazard or problem that arrises out of the use of the information herein.   Use at your own risk.  Copyright (C)2005 UVA SunSystems, Inc.  All Rights Reserved.