Ashp external wiring

[Phil mcp]

Anyone installing ecodan heat pumps? Best cable type for wiring from rotary to heat pump unit? Trying to stay away from swa due to limited space with security cage.

 

[richy3333]

We always fit SWA and dont gland into the side where the knockouts are but underneath! Have seen other companies use PVC/PVC in a bit of Flexi con but it looks w&^%.

 

[bill01803]

I always use HO7RNF if in direct sun light with flexi conduit over it

 

[DefyG]

NYY-J - HiTuff if further mechanical protection isnt required.

 

[Rockingit]

As above - either NYY-J or H07R-NF. The latter is more forgiving around bends!

 

[Phil mcp]

Thanks. probably have to go with H07R-NF, also have a control cable to get to the pump

 

[richy3333]

Control cable is usually a 4 core flex in 1.5mm

 

[David Prosser]

You can get H07RN with additional control cores included.

 

[Rockingit]

You can get H07RN with additional control cores included.

Have any links? I've never seen that and it could have additional uses for me.

 

[Phil mcp]

The Control cable is only a 2 core. Pump is on its own supply

 

[David Prosser]

Have any links? I've never seen that and it could have additional uses for me.

It's called "subcab" cable and appears to made for the water industry. You buy it direct from the manufacturers as we use loads of it.

http://ajayin.com/images/Catalogues/SubcabCables.pdf

There's a lot more variations available than on that flyer.

 

[Rockingit]

It's called "subcab" cable and appears to made for the water industry. You buy it direct from the manufacturers as we use loads of it.

http://ajayin.com/images/Catalogues/SubcabCables.pdf

There's a lot more variations available than on that flyer.

That’s really interesting. Does it have a special sort of boot gland to separate power from data at termination?

 

[suffolkspark]

It's called "subcab" cable and appears to made for the water industry. You buy it direct from the manufacturers as we use loads of it.

http://ajayin.com/images/Catalogues/SubcabCables.pdf

There's a lot more variations available than on that flyer.

Doesnt appear to have any IEC or BS numbers on it?

 

[David Prosser]

Doesnt appear to have any IEC or BS numbers on it?

It has an absolute raft of IEC number and BS numers on the website and documentation.

 

[David Prosser]

That’s really interesting. Does it have a special sort of boot gland to separate power from data at termination?

No it goes through a waterproof unit, or a stuffing gland if not for submersible units and then split out in the connection housing. I would say control voltages not data but if I can find out who actually manufactures it I will let you know as we can get pretty much any configuration we want.

 

[suffolkspark]

It has an absolute raft of IEC number and BS numers on the website and documentation.

I went straight for the table on the flyer so didnt see them, i see theres some IEC ones mentioned further up, so does bs7671 allow us to use this?

 

[David Prosser]

I went straight for the table on the flyer so didnt see them, i see theres some IEC ones mentioned further up, so does bs7671 allow us to use this?

It's in literally hundreds of thousands of installation across the UK. So I would be hopeful it does. It could be that they are willing to prove it is above BS7671 standards as the information on the website clearly states it's superiority to H07RN. My opinion it's the same but with added control cables.

 

[suffolkspark]

It's in literally hundreds of thousands of installation across the UK.

So is SY