Image is for illustration only and should not be relied upon Honeywell L641B Pipe Thermostat
Honeywell L641B Pipe Thermostat

Honeywell L641B Pipe Thermostat

0 reviews
Manufacturer Resideo (Honeywell)

Express delivery Available Until 4pm
UK Mainland Only,
3pm cut-off for Highlands and Islands
1pm for Europe

Image Product Stock Price Add to Cart
Low Limit
Low Limit
HCO Code: 04A02
  In Stock £38.90 Ex VAT: £32.42
 
High Limit
High Limit
HCO Code: 09E03
  In Stock £36.80 Ex VAT: £30.67
 

The L641 is a range of thermostats designed for surface mounting the piping associated with the heating system to provide both Hi and Low temperature protection. The low limit version may be used with the T4360A Frost thermostat to offer complete system protection against freezing.

Suitable to pipes from 15mm to 28mm.
Differental 10C (fixed)

Models:
Low Limit (10C to 40C) - L641B1004
High Limit (50C to 95C) - L641B1012

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  • There are multiple applications for these thermostats, so the setting required varies.

  • Hi. Normally the pipe thermostat is set to 25c in this situation.
  • The high limit model does not have a 'Min' setting, so the lowest is 50C.
  • Yes it can.
  • If set to 10C it will come on at approximately 0C and go off at approximately 10C.
  • It is the difference between it switching off and switching on.
  • Yes it would.
  • Both units have change over contacts: Terminals C and 2 make on temperature rise. Terminals C and 1 make on temperature fall.
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