What kind of actuator does sunvic central heating use?
What kind of actuator does sunvic central heating use?
These webpages deal primarily with modern Sunvic motor-on motor-off (MoMo) actuators including the popular Unishare type. To operate your system without the valve actuator in place can be a little daunting if you are not experienced in electrical work and central heating.
Why are my sunvic central heating valves not working?
Older designs of actuators are unaffected by slight leakage, as is further explained below. This section of the SeeRed website details why Sunvic motorised central heating valve actuators of a particular design often fail to operate correctly. The main text applies to both modern two-port and three-port (unishare) valves.
How much does it cost to replace a sunvic 3 port valve?
The same advice applies to the 1901 3-port range but no ‘redesigns’ are available. One option here may be to use a 2701 unit to replace a 1901. Two port valve actuators (including spring return 2301 types and variants) are repaired for £15, three port types (1901) for £17 and spring return three port types (SD2701 and variants) for £20.
What makes a sunvic motorised valve so good?
Sunvic motorised valves are guaranteed to be of high quality, high reliability and high specification. Years of experience in the mastery of valve design and manufacture gives uniqueness to the products within our range.
These webpages deal primarily with modern Sunvic motor-on motor-off (MoMo) actuators including the popular Unishare type. To operate your system without the valve actuator in place can be a little daunting if you are not experienced in electrical work and central heating.
The same advice applies to the 1901 3-port range but no ‘redesigns’ are available. One option here may be to use a 2701 unit to replace a 1901. Two port valve actuators (including spring return 2301 types and variants) are repaired for £15, three port types (1901) for £17 and spring return three port types (SD2701 and variants) for £20.
Older designs of actuators are unaffected by slight leakage, as is further explained below. This section of the SeeRed website details why Sunvic motorised central heating valve actuators of a particular design often fail to operate correctly. The main text applies to both modern two-port and three-port (unishare) valves.
Sunvic motorised valves are guaranteed to be of high quality, high reliability and high specification. Years of experience in the mastery of valve design and manufacture gives uniqueness to the products within our range.
How long do sunvic motorised valve actuators last?
Tens of thousands have probably been manufactured, all may fail within a few years (some within 18 months) and most will be scrapped by plumbers who simply fit replacement units. If properly designed, valve actuators should last 20 to 30 years – as Sunvic/Satchwell Minivals used to do.
Can a sunvic motorised actuator cause a house fire?
Some evidence has been collated showing the degree to which the micro-switches often used within motorised actuators may overheat and the propensity of the circuit boards within the ‘new’ Sunvic designs to explode. To my knowledge no house fires or similar events have resulted from a failed motorised actuator.
How much does a sunvic motorised valve actuator cost?
Two port valve actuators (including spring return 2301 types and variants) are repaired for £15, three port types (1901) for £17 and spring return three port types (SD2701 and variants) for £20. Prices include return postage to the UK.
Some evidence has been collated showing the degree to which the micro-switches often used within motorised actuators may overheat and the propensity of the circuit boards within the ‘new’ Sunvic designs to explode. To my knowledge no house fires or similar events have resulted from a failed motorised actuator.
What are the types of sunvic motorised valve failures?
Failures of SUNVIC motorised valves including those with actuators SZM 1801 and SDM 1901 Unishare valves also SZMV2305 (and spring return types 2301 and 2701 and variants). Updated March 2020. Covid-19 (coronavirus) summary on the SeeRed website. This message has been added temporarily to some of the most popular pages on my website.