User Guide
LP20 Programmer
Central
heating
ON light
Central heating advance button:
turns ON until next OFF time OR
turns OFF until next ON time
Press OK to adjust each
program setting
Pre-heat advance button:
turns ON until next OFF time OR
turns OFF until next ON time
Hot water pre-heat
mode indicator
Central heating
mode indicator
+ and - changes ON/OFF
programmed times
Press to select each setting:
date, time, program and
holiday function
Time and day
indication
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Hot water
pre-heat
ON light
LP20
Central heating
select button, moves
the indicator up and
down to select mode
and accepts changes
Pre-heat select
button, moves the
indicator UP and
DOWN to select
mode and accepts
changes
Central heating
modes:
off
= continuously off.
timed
= on for up to 3
periods a day as
program
once
= on for 1 period a
day, from the start of
1st ON to the end of
3rd OFF as program.
on
= continuously ON
Hot water pre-heat
modes:
off
= continuously off.
timed
= on for up to 3
periods a day as
program
once
= on for 1 period
a day, from the start of
1st ON to the end of
3rd OFF as program.
on
= continuously ON
If the engineer has set your program and timings – you do
not need to do anything else. Just keep this guide in a safe
place for future reference.
Introduction
The programmer will automatically switch your central
heating and hot water on and off at times that suit you.
The green light on the front of the programmer shows
when each one is on. LP20RF has a 7-day program
allowing for different timings on each day of the
week, with central heating and hot water working
independently for up to 3 heating periods each day.
If the engineer hasn’t set your timings for you, your
programmer will work with a standard program that has
been set at the factory. If this doesn’t suit you, it’s very
easy to change it.
NOTE:
Advance has no effect with constantly on
or off is selected on the receiver or when
there is no demand from the transmitter.
LP20 Programmer
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Installation & User Guide
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