Honeywell L641A1039 Cylinder Stat, 230 V

Q: I need a thermostat to show the tempereture of the hot water tank. It will consist of sensor wire 3 meters and an indicator to see the tempereture in

These units do not have a gauge attached. They are strapped on with an 'elasticated wire and make contact with the cylinder by cutting a suitable hole in the insulation. I'd think that there may well be a suitable gauge out there somewhere. I could do with one myself actually so I'll have a look on 'google' By the way I'd go for one that does not need to be powered and works on contact.

Q: why are there no screws to undo to hold the cable?

The unit comes with a flexible tie (same as that used for net curtains) that goes around the cylinder. This tie has hooks and the thermostat has eyes. Thus the hook and eye system keep the unit tight to the cylinder. Make are that the thermostat has metal to metal contact so that it can register the temperature of the hot water.

Q: Why does this say 2x AA batteries required, this should be mains?

100% no batteries required it is hard wired into your heating / hot water junction box.

Q: I have potterton ptt2 water cylinder thermostat with sensor which is obsolete now . would this honeywell l641a1039 be ok as a replacement

The Potterton PTT2 is not a conventional Cylinder Thermostat as it’s wired externally to the Tank with it’s own temp sensor. Sadly as you mentioned it’s now obsolete. The only option (if you can’t find another PTT2) is to replace it with a terminal box with heat resistant flex outlet to the new stat. Up to 3 wires from the original PTT2 will need to go to the new stat, new stat instructions will confirm it. Finally the live wires will then be redundant and will require to be either terminated or spurred to a new useful output (plug socket box, a lamp etc) Please ensure a qualified electrician does ANY electrical work or changes in your home heating setup.

ID del producto: 48082193

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Detalles

Brand
Honeywell
Model name
Cylinder Stat
Controller type
knob manual
Special feature
Manual Setting
Colour
White
Specific uses for product
Indoor use

⚡230V Power Efficiency

🔒Tamperproof Security

🎛️Manual Setting Knob

Descripción

🎯 Master your climate with precision and security!

USER FRIENDLY WIRING - Easily accessible terminals make installation and maintenance a breeze.
DURABLE DOUBLE INSULATION - Enhanced safety with double insulated construction for peace of mind.
SECURE TEMPERATURE SETTINGS - Tamperproof design ensures your settings stay exactly where you want them.
PRECISION SNAP ACTION SWITCH - Experience reliable SPDT micro switch performance for flawless temperature control.
CUSTOM CONTROL AT YOUR FINGERTIPS - Optional manual setting knob offers personalized temperature adjustments.

The Honeywell L641A1039 Cylinder Stat is a robust 230V thermostat featuring a snap action SPDT micro switch, tamperproof temperature settings, and an optional manual knob for precise control. Designed for indoor HVAC applications, it offers easy wiring access and double insulation for enhanced safety and durability.

Presupuesto

Manufacturer	Honeywell
Part Number	L641A1039
Product Dimensions	8.5 x 8.5 x 8.5 cm; 240 g
Batteries	2 AA batteries required.
Item model number	L641A1039
Colour	White
Style	Modern
Finish	Mixed
Material	Plastic
Power Source	AC
Voltage	230 Volts
Item Package Quantity	1
Switch Type	1-way
Display style	manual
Plug profile	Surface Mount
Switch style	SPDT
Special Features	Manual Setting Knob, Tamperproof Temperature Setting
Usage	Indoor use only
Included Components	Cylinder Stat
Batteries included?	No
Batteries Required?	No
Battery description	Not Included
Item Weight	240 g