ESI ES1247B, ES3247B, ES2247B User Instructions

ES1247B

1 Channel Multi-Purpose
Programmer

User Instructions

Thank you for choosing ESi Controls.

All our products are tested in the UK so we are
confident this product will reach you in perfect
condition and give you many years of service.
However, for additional peace of mind, we
recommend you register your product online at
www.esicontrols.co.uk/warranty for your
extended warranty.

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User Instructions

What is a Channel Programmer?
An explanation for householders 6

An introduction to the 1 Channel Programmer 6

Quick Operating Guide 8

Programming the Unit

The Factory-set Programme 10
Setting the Programmer Option (5/2, 7 Day, 24hr) 11

Setting the Programme 11

Setting the Operation (ON/OFF/AUTO/ALL DAY) 12

Operating the Unit
Temporary Overrides 13
The Advance Function 13
The +HR Boost Function 14
Holiday Mode 14

Basic Settings
Setting the Time & Date 15

Setting the Backlight 15
Resetting the Unit 16
Power Interruption 16

Contents

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User Instructions

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An explanation for householders

Programmers allow you to set ‘On’ and ‘Off’ time periods.
Some models switch the Central Heating and domestic Hot
Water on and off at the same time, while others allow the
domestic Hot Water and Central Heating to come on and go
off at different times. Set the ‘On’ and ‘Off’ time periods to
suit your own lifestyle.

On some programmers you must also set whether you want
the Central Heating and Hot Water to run continuously,
run under the chosen ‘On’ and ‘Off’ heating periods, or
be permanently off. The time on the programmer must
be correct. Some types have to be adjusted in Spring and
Autumn upon the changes between Winter and Summer time.

You may be able to temporarily adjust the heating
programme, for example, ‘Override’,‘Advance’ or ‘Boost’.
These are explained in the manufacturer’s instructions. The
Central Heating will not work if the room thermostat has
switched the Central Heating off. And, if you have a Hot
Water cylinder, the water heating will not work if the cylinder
thermostat detects that the Central Hot Water has reached
the correct temperature.

Introduction to the 1 Channel Programmer

This programmer can automatically switch your Central
Heating and Hot Water ON and OFF either 2 or 3 times a day,
at whatever times you choose. Timekeeping is maintained
through power interruptions by a replaceable internal battery
(by Qualified Installer/Electrician only) designed to last for

What is a Channel Programmer?