Q: I have just bought a Firebird enviromax combi boiler which has no timer is the LP711 suitable if so are there any instructions on how to wire it in.
A: It is suitable, but you will need a thermostat as well to comply with the regulations. A programmable thermostat would be an easier solution to install. A wiring diagram will be in your boiler manual.
Q: Hi...hav oil central heating system and already hav old drayton programme control but needs changing...its my mums and shes old and dont want 1 thas to complicated i need 1 in a fee weeks also for my renovated house! Which control do i need the LP711 or yhe other 1? Just wana b a able set timer to come on am & pm but like the boost or advance button it puts heating on for 1 hour is that correct? Can i do the boost or advance for heating also seperate from the heating? All info helpful
A: If you have a combi boiler, with the hot water on demand straight from the boiler, then you need the LP711.
If you have a heat-only boiler, with a hot water cylinder, then you need the LP722. The heating is separate from the hot water.
Yes, the boost puts it on for an hour.
Q: Can you use this as a timer for an immersion heater? Wondered if it had a maximum amp rating?
A: No, it is not suitable. It is rated 3(1)amps only.
Q: I have an LP 711 timer, how does / do you operate the 1 hour boost / override for the central heating. it does not make this clear in the instructions
A: If yours is the latest model with the boost function then you just press and hold the boost/advance button in. If it is the older model, then you will need to upgrade.
Q: is the LP711 compatible to replace British Gas control EMT2 & is it easy to replace or should I call an Electrician ?
A: Yes, it is a simple plug-on replacement. A 5-minute job.
LP711 - 7 day timeswitch
For enhanced levels of combi control LP711 gives theend user real flexibility with programming. With astandard weekday/weekend programme built in settingof each day\'s timings can be changed individually ifrequired. Ideal where living patterns vary during the week.
* Complete with new backplate
* Now even easier to use
* 1hr boost facility
* Automatic summer/winter timechange
* Memory saver - programme and clock never need resetting in the event of loss of power
* Easy to read backlit screen
* New contemporary design
* Pre-set clock
* On/once/timed/off switching options
* 3 timing periods per day
* Programme advance buttons
* Part L Compliant (Part J in Scotland)
* Proven reliability
* 2(1)A SPDT Volt-Free contacts
* Dimensions: 93x148x31mm HxWxD
Replaces (same backplate and wiring for easy changeover):
Drayton SM1, Tempus 1 (Tempus One), Tempus 2 (Tempus Two), Lifestyle LP111
British Gas UT1, UT2, EMT2
Replaces (same backplate but requires a link between two terminals):
ACL Lifestyle LS111, LS711