22.80 EURexcl. VAT · import VAT and duties on delivery
ACV Thermostat with manual or automatic reset, featuring a capillary 54764006
SKU 54764006
Brand ACV
Brand ACV
Key specifications
| Reset type | manual or automatic |
|---|---|
| Contact configuration | normally closed or normally open |
| Electrical rating | must match original |
| Bulb form | immersion or clamp-on |
52.14EUR
in stock · 2excl. VAT · import VAT and duties on delivery · shipping calculated at checkout
- Delivery to 97 countries
- Original manufacturer part
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Description
ACV Thermostat with manual or automatic reset, featuring a capillary bulb for remote temperature sensing. It is designed for use in HeatMaster 45 and HeatMaster 60 boilers. The thermostat acts as a high-limit or safety device, interrupting the control circuit when the sensed temperature exceeds the setpoint. The reset function allows rearming after the temperature drops. The bulb form can be immersion or clamp-on, and the contact configuration is normally closed or normally open, with electrical rating matching the original.
Further details
| Action type | acts directly on burner control or safety circuit |
|---|---|
| Boiler overheat protection | disconnects boiler in case of overheating and requires user action to restore function |
| Design features | capillary bulb for remote temperature sensing |
| Features | improved operational safety, oem compatibility, reliable response to overheating |
| Operation principle | when sensed temperature exceeds setpoint, interrupts control circuit; reset allows rearming when temperature drops |
| Switching mechanism mounting | mounted on a panel or junction box |
| Switching point drift | boiler modulates incorrectly or fails to cut off |
| Switching temperature printing | often printed on thermostat body or in manufacturer's data |
Choosing and fitting
When selecting a replacement thermostat of this type, verify the switching temperature (setpoint), reset type (manual or automatic), capillary tube length, and bulb form (immersion or clamp-on). The electrical rating and contact configuration (normally closed or normally open) must match the original. Ensure the capillary length reaches the mounting point without sharp bends, and that the reset mechanism is accessible. For clamp-on bulbs, secure correctly and apply heat-conductive paste for accurate response.
Signs of failure
Typical failures include drifting switching point, causing the boiler to modulate incorrectly or fail to cut off. A broken capillary tube or poor thermal contact between the bulb and pipe can also occur. Check for these issues if the boiler overheat protection is not functioning properly.
Fits equipment
HeatMaster 45 HeatMaster 60Heatmaster 45Heatmaster 60
All specifications
| Reset type | manual or automatic |
|---|---|
| Contact configuration | normally closed or normally open |
| Electrical rating | must match original |
| Bulb form | immersion or clamp-on |
Part numbers
| SKU | 54764006 |
|---|---|
| Additional article | 129.805.009 |
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