Shower Priority board Question

Bullish

Hi All
Hoping someone can help me with this, I just installed a Priority board ( CV8-PS) in the attic. I wired the En suite Shower as priority and main bathroom as secondary.
I do not have the En suite shower fitted yet ( Cable is coiled up in the attic ). i am getting no power to the Secondary shower. The manual suggests that you need >3kw attached for the unit to switch over the board. The wireless digital shower is electronic and probably only draws miliamps until it is switched on. But with no power going to it obviously the electronics are unable to power it up.
Any suggestions from anyone who is familiar with these boards

Thanks in advance , PDFs of board and shower below






PDF of priority board
https://www.garo.ie/GAR1/GAR1-SHOP2/docs/domestic%20consumer%20units/Shower%20Boards/Shower%20Boards.pdf

PDF of shower
https://www.tritonshowers.co.uk/digital-showers/aspirante-wireless-electric-shower.html

Sleeper12

Hate to break the bad news but that shower is a bit of a lemon. I've taken some of these out still under warranty. They are mains fed for starters so you must have good mains pressure. If the walls are insulated or plasterboard has foil back the signal doesn't work well or at all. I'm a huge triton fan but digital electric is a bit of a disaster. Digital power shower is a different matter.

Gashmuncher

According to the wiring diagram both showers should have power going to them under normal circumstances. Your shower should be working. Where are the neutrals connected? The contractor simply cuts power from the non priority shower when the current sensing device detects 10 or more amps being used by the priority shower. If wired correctly the shower should be working. Check that you have 220 volts at the input terminals of the shower unit that is installed. This check needs to be done with a proper voltmeter. A phase tester is not a accurate indication that the correct power is available. (Will still light with no neutral) If you have the correct voltage going into the shower, the unit itself is at fault. The fact that one shower is not fitted should not make any difference.

Bullish

Sleeper12 wrote: »

Hate to break the bad news but that shower is a bit of a lemon. I've taken some of these out still under warranty. They are mains fed for starters so you must have good mains pressure. If the walls are insulated or plasterboard has foil back the signal doesn't work well or at all. I'm a huge triton fan but digital electric is a bit of a disaster. Digital power shower is a different matter.

Yes they are , i have changed this one to electric connection , you only need a new interface card and new remote card , an rj45 cable connects both and i haven't had an issue since ( about 8 months ago) prior the wireless connection was a nightmare, it was under 200 yoyos for the kit to modify it , either that or i was going to rip it out. The triton Tech in manooth helped me out with the new parts required ( they know of the issue the wireless connection)
I was in the attic resetting the damn thing many times.
slightly off topic to my original question

Bullish

Gashmuncher wrote: »

According to the wiring diagram both showers should have power going to them under normal circumstances. Your shower should be working. Where are the neutrals connected? The contractor simply cuts power from the non priority shower when the current sensing device detects 10 or more amps being used by the priority shower. If wired correctly the shower should be working. Check that you have 220 volts at the input terminals of the shower unit that is installed. This check needs to be done with a proper voltmeter. A phase tester is not a accurate indication that the correct power is available. (Will still light with no neutral) If you have the correct voltage going into the shower, the unit itself is at fault. The fact that one shower is not fitted should not make any difference.

Thanks gusher , 220v ( fluke meter) at the mains terminal , all wired correctly i think ( have rechecked a few times ) Primary and secondary live and neutrals go where they should. only thing i could think of was too low a draw to the secondary to turn it on , it makes sense what your saying though


Update : Found it gashmuncher , you are correct , the output to the shower was 220v the switch in the main bathroom went faulty conveniently when i wired the demand unit , i was sure it was a panel problem
thanks for the explanation

Sleeper12

Bullish wrote:

Yes they are , i have changed this one to electric connection , you only need a new interface card and new remote card , an rj45 cable connects both and i haven't had an issue since ( about 8 months ago) prior the wireless connection was a nightmare, it was under 200 yoyos for the kit to modify it , either that or i was going to rip it out. The triton Tech in manooth helped me out with the new parts required ( they know of the issue the wireless connection) I was in the attic resetting the damn thing many times. slightly off topic to my original question

Sounds like you've turned it into a decent shower so. It was the wireless part that causes the trouble.

Bruthal

Gashmuncher wrote: »

According to the wiring diagram both showers should have power going to them under normal circumstances.

That is correct. Two showers will run together if the priority one is running with no elements on, for example.

Bullish

Awesome all sorted ,
thanks guys i wasn't sure how the board worked with the current sensing.
I thought we would have to use the power switches to switch the board over ,
this is much simpler .
Thanks again