Cylinder Thermostat Wiring
Cylinder Thermostat Wiring
14/04/2012 · I've just changed my copper hot water cylinder and purchased a new themostat. (Honeywell L641A Cylinder Thermostat). The original one was a Switchmaster which had 4 wires Black, Blue. Brown and Green/Yellow On installing the new themostat it only has C, 1 and 2 but dosn't need an earth.
04/03/2018 · This is a simple guide to replacing the hot water cylinder thermostat for a Honeywell L641A. Total cost £30 and an easy 15 minute job that ANYONE can do.
Wiring Diagram 2 Pre-insulated cylinder preparation 4 Wiring to terminals 80°C min 70 50 60 40 L641A1039 80°C min 70 50 60 40 L641A1039 to Height The cylinder thermostat should be mounted to of the way from the bottom of the cylinder. Cover installation is the reverse of above 80mm 45mm Remove a section of insulation as specified. Clean ...
A cylinder thermostat switches on and off the heat supply from the boiler to the hot-water cylinder. It works by sensing the temperature of the water inside the cylinder, switching on the water heating when the temperature falls below the thermostat setting, and …
The L641A Cylinder Thermostat is designed for surface mounting on domestic hot water cylinders. It can be used to switch directly a wet central heating circulating pump or boiler, or to operate spring return and motor open/motor close zone valves.
03/09/2019 · Hi I have just bought a replacement cylinder thermostat (Horstmann) to replace my old one which doesn't seem to be working. The wiring instructions are non-existant, could anybody talk me through it or point me in the right direction?
The thermostat is purchased as a separate item, and placed against the metal surface of the cylinder. It is secured in place with an elastic strap or spring. Where the cylinder has foam insulation, this must be cut away where the thermostat is fitted, so the thermostat is in contact with the metal.
Wiring To comply with the current IEE regulations Common Call for heat Satisfied Available from: D11-10 HTS3 cylinder thermostat Features Easy fixing to all hot water cylinders Suited to all systems Positive OFF setting for test purposes Tamper resistant Double insulated What is a cylinder thermostat?... an explanation for householders
third of the way up the hot water cylinder,and at the front for ease of access.With pre-insulated cylinders,mark the position and size,and remove just enough insulation to allow the HTS3 to ﬁt against the metal of the cylinder in the recess formed. Wiring Connections From …
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