Grounded 220V/15A Heavy Duty Appliance Module
(610-2668)                 Installation               Faxback Doc. # 19277

This module plugs into a regular 220V 15A or 20A outlet and control any 
220/240V appliance rated at 15A or less. 

This module is designed to work on single split phase 110/220V or 120/240V 
systems.  This is the kind of wiring system found in most houses.  It will 
not work on 3 phase systems which are sometimes found in apartments. 
 
This is because the signals transmitted by the Plug'N PowerControllers 
(onto 120V) are transmitted at the zero crossing point of the 120V line.  
All 120V Modules look for a signal at zero crossing.  However, there is a 
30 degree phase shift between zero crossing at 120V and zero crossing at 
208V (phase to phase voltage in a 3 phase system is actually 208V not 
220V).  This 30 degree phase shift means that there is no signal present at
the zero crossing point of the 208V phases where the 220V module is 
connected. 

There is a product called a Repeater (available through Leviton  
Manufacturing) available to solve this problem when it is desired to use 
220V Modules in industrial installations.  The Repeater is used for 
large installations and is connected to all three phases in the breaker 
panel.  It looks for a signal on any 120V phase and re-transmits it at 
the correct zero crossing points onto all three phases. 

For safety, the Heavy Duty Appliance Modules does NOT respond to the "All 
Lights On" code but does respond to the All Units Off code. 

The Heavy Duty Appliance Module does not have local control. 

SETTING UP THE HEAVY DUTY MODULE

1.  Use a small screwdriver to set the red Housecode dial on the Heavy
    Duty (220V) Module to the same letter as your X-10 Controller(s).

2.  Set the black Unit Code dial to any number between 1 and 16.

3.  Plug your appliance into the Module and plug the Module into a
    standard 220V AC wall outlet which is supplied from a regular 110/220V
    or 120/240V split phase wiring system (as found in most houses.

This Heavy Duty Module is compatible with all X-10 Controllers and Timers.
Refer to the appropriate owner's manual for operation of your controller
or timer.


(CS 1/18/96)