Grohe Valve Modes

[ChrisGTE]

I am doing a shower install with a standard shower head, 2 body sprayers and a rain head using a Grohe 3 function control and the rapido smart box.

Reading through the modes this valve can be operated in it looks like you can use A+B and or B+C but they don’t list A+C. Can this unit operate with A+C active?

Attached is a screen shot from the install guide and below are the part numbers.

GROHE 29138000 29138 Round US Chrome Thm Smartcontrol 3
GROHE 35601000 Rapido Smartbox Universal Rough-In Box

 

[TJRAD]

Yes A & C can be pressed together. Just so your aware The flow rate will drop when multiple items are in operation. ie 9.5gpm when all three are pressed. Also Port A has the highest GPM so maybe do the body sprays on this one since you are driving two heads on this one port.
Good Luck

 

[Sponsor]

 

[ChrisGTE]

Thank you very much for the response and information, I am feeling better now. Thanks again.