Wiring question: Upgrading a reciever unit for NOBO heating system

[alichambers]

Hi,

I am upgrading a NOBO RF heating system I have.

As part of the upgrade, I have to replace a reciever unit that controls my water immersion heater.

My existing installation is here:

https://sites.google.com/site/imagesforwebanc/_/rsrc/1330335154960/home/DSC00649_c.JPG

The water heater unit is in the middle marked "WH".

My question is around wiring - it looks like a straight swap. The existing unit is wired as shown:

[url]https://sites.google.com/site/imagesforwebanc/_/rsrc/1330344346497/home/2012-02-27 11.37.45.jpg[/URL]

And the new unit needs to be wired as follows:

https://sites.google.com/site/imagesforwebanc/_/rsrc/1330345098304/home/rsx700_image.png


Does it look like a straight swap job, or is there anything I need to know?

Thanks,
Alex