Hello - I'm a relatively new owner of an old house here in France that was updated by the previous owner who lives in the UK. He used one channel of a two channel Horstmann C27 to control turning on and off the electric water heater. Given that I'm from the states, I'm not all that familiar with this system, but did figure out that the switch controls a 3a solenoid/relay that also had to be replaced after a power surge knocked out this entire timer system.
While online in France, I was able to purchase a Flomasta 7635G which is a single channel switch which also seemed to me is all that I need. However their were no installation instructions and screwfix only has instructions for the the two channel version which looks like how my Horstmann is wired. The only instructions I have are on the schematic on the back of the device which looks a little different than the schematic of the Horstmann and how it is currently connected. Before I do something stupid, I'd like a second opinion.
PS - the water heater is working fine - after testing it and replacing the solenoid/relay, I've been manually turning the breaker on & off while waiting for this new timer to arrive.
You'll note the current Horstmann wiring diagram. To confirm, there are two leads from the 230v mains connected to the Neutral & Load terminals - as I understand it, these control the actual timer. There is also a Neutral wire running from the N terminal to the solenoid/relay followed by a Load wire running from terminal 3 on the block to the solenoid/relay which as I believe would be my 3a output leads for the solenoid/relay.
In looking at the wiring diagram on the back of the Flomasta, I'm unsure if I should leave my Neutral solenoid/relay wire where it is, connected to the N terminal, or move it to the 1 terminal of the wiring block that reflect COM.
Thank you in advance for input.
While online in France, I was able to purchase a Flomasta 7635G which is a single channel switch which also seemed to me is all that I need. However their were no installation instructions and screwfix only has instructions for the the two channel version which looks like how my Horstmann is wired. The only instructions I have are on the schematic on the back of the device which looks a little different than the schematic of the Horstmann and how it is currently connected. Before I do something stupid, I'd like a second opinion.
PS - the water heater is working fine - after testing it and replacing the solenoid/relay, I've been manually turning the breaker on & off while waiting for this new timer to arrive.
You'll note the current Horstmann wiring diagram. To confirm, there are two leads from the 230v mains connected to the Neutral & Load terminals - as I understand it, these control the actual timer. There is also a Neutral wire running from the N terminal to the solenoid/relay followed by a Load wire running from terminal 3 on the block to the solenoid/relay which as I believe would be my 3a output leads for the solenoid/relay.
In looking at the wiring diagram on the back of the Flomasta, I'm unsure if I should leave my Neutral solenoid/relay wire where it is, connected to the N terminal, or move it to the 1 terminal of the wiring block that reflect COM.
Thank you in advance for input.