Horstmann Electronic 7 User Manual

Electronic 7
User Operating Instructions
The Horstmann Electronic 7 Water Heater Controller has been especially
developed to control the immersion heater as economically and conveniently
as possible.
During the night, water in the tank will be heated by cheap night-rate
electricity, ensuring a tank of hot water is available for the morning.
Depending on the size of the tank and usage of hot water, this will usually last
a day; however, if required, more hot water can be heated at any time by using
the ‘boost’ button which switches on the immersion heater for one hour.
Alternatively if it is known that extra hot water will be required every day, the
‘boost’ element (in the tank) can be programmed so that it will heat only a
small part of your tank. This is normally the upper element in the tank and can
be programmed to come on once each day at a set time.
Some tariffs offer additional cheaper electricity periods during the day time;
the Electronic 7 has extra off peak switching periods available to
accommodate this.
1

Horstmann Electronic 7 Specifications

General

Contact Voltage Rating	230V AC
Contact Current Rating	16A
Frequency	50Hz
Display	LCD
Programming	Manual
Number of on/off programs	3 on/off programs per day

Summary

Unit Overview and Controls

LCD Display and Indicators

Details the LCD display for time/programmes and indicators for status feedback.

Key Controls

Identifies main controls like Timed display, Boost Button, and Switched Output.

Manual Boost Function

Explains how to use the boost button for temporary extra hot water.

Operational Features and Settings

Programme Security Lock

Explains the security feature that prevents user alteration of programmes.

Switched Output Operation

Describes the function of the switched output control for the immersion heater.

Time Display and Setting

Details the automatic clock and guide to setting the current time.

Setting Off-Peak Heating Periods

Step-by-step guide to program specific off-peak heating times.

Programmed Boost

Instructions for setting a daily programmed boost for specific heating needs.

Maintenance and Troubleshooting

Service and Repair Advice

Guidance on non-user serviceable parts and contacting professionals for faults.