Honeywell L641B High Limit Pipe Thermostat
Honeywell

Honeywell L641B High Limit Pipe Thermostat

Honeywell

Product Code: L641B1012

£31.32
Ex Tax: £26.10
Quantity:  
 

Honeywell L641B High Limit Pipe Thermostat

Honeywell L641B High Limit Pipe Thermostat is a high grade surface contact thermostat designed to identify the water temperature in storage cylinders and water pipes. It also features temperature control, temperature limiting, and temperature feedback functions. The L641B1012 thermostat mounts directly onto a pipe and provides high temperature limit protection to your heating and hot water systems. It is available for use as a pipe thermostat in fan-coil applications. The Honeywell High Limit Pipe Water Temperature Control Thermostat features an easy-to-control temperature selector and provides extra protection to your heating system.

Features:

  • Ideal for pumped systems
  • Tamperproof temperature adjustment setting
  • High limit model
  • Bi-metal strip sensor
  • Surface mounted
  • Colour: White

Normally same day dispatch

Question

Hello I am looking at honeywell pipe thermostats. would I be right in thinking that
I could attach one of these to a copper pipe that is carrying hot water and
for example set it at 60 and attach the sender to a 3 way motorized valve so
that when the thermostat recognized that the water in the tube had reached
60 it would send the power to the motorized valve to alter the flow-
thanks for your help

Answer

Thank you for your enquiry - Please find product page link for the Honeywell L641B1012 pipestat
which has a range of 50 - 95 degree C and can be used for simple switching based on the water temperature.
http://www.uk-plumbing.com/honeywell-l641b-high-limit-pipe-thermostat-p-1487.html

Question

Hello - I have a woodburning stove with internal boiler heating 5 radiators and (through a coil) the water in the hot water cylinder (when the fire is out this has an immersion heater).  There is a two speed pump next to the stove and presently I switch this on to the lower speed when the fire has been lit for some time and I think the water is hot enough to circulate.  If it gets too hot (a windy day) I put it on the 2nd speed.  As you can imagine this is not ideal and whilst there is a vent into the header tank in case of boiling I would be happier if this was automatic as of course when the fire goes out or is running low I have to remember to turn the pump off otherwise cool water is running through the coil in the cylinder and cooling the previously electrically heated water. Is there a pipe thermostat (28mm pipe) you can supply that I can fit close to the boiler wired to the pump nearby that maybe has a two position output or can you recommend a better solution

Answer

Thank you for your enquiry - Please find product page link for the Honeywell L641B1012 high limit pipe stat which clamps on, and is commonly used in solid fuel systems for switching on the pump when the Selected water temperature is met in the pipe. http://www.uk-plumbing.com/honeywell-l641b-high-limit-pipe-thermostat-p-1487.html In many cases a low limit thermostat is used on the return pipe to switch off the pump also as http://www.uk-plumbing.com/honeywell-l641b-low-limit-pipe-thermostat-p-1486.html You can find download information leaflets on controlling solid fuel heating systems from the link below http://www.solidfuel.co.uk/