Miele PWM 511 Operating And Installation Instructions page 62

Installation
Peak load/Energy
management
Liquid dispensing
connection
Payment system
62
A peak load or energy management system can be connected via the
Connector Box.
The energy management system monitors the energy consumption
of a system and deactivates individual pieces of equipment
temporarily by means of the peak load cut-out in order to ensure
that certain total load limits are not exceeded.
When the peak load function is activated, the heating is deactivated
and the programme stopped. A message appears in the display to
inform you of this.
The programme is resumed automatically when the peak load
function finishes.
External liquid dispenser pumps with a "container empty" indicator
and/or flowmeter can be used via the Connector Box to dispense
liquid detergents.
The dispenser pumps can only be programmed by Miele
Professional Service.
It is particularly important to observe the manufacturer's instructions
when using a combination of cleaning agents and special application
products.
The washing machine can be equipped with a single-machine
payment system as an optional accessory via the Connector Box.
The programming required for connecting a payment system can be
carried out during the initial commissioning process. After initial
commissioning, changes can only be made by Miele Professional
Service.
Please note that the status of the Connector Box must be set to
"on" in the Supervisor level as required.