Hello all Ive installed a polyplumb UFH system in my house with a manifold upstairs and downstairs.. ive wired it using 5 core from immersion closet to each manifold and also to the boiler.. The HW and UFH work fine but im unable to shut off the CH from the Hortsmann programmer im using.. ie the UFH is always on.. How would i run my UFH thru the programmer?? any suggestions would help. thanks in advance