Harwil Q-12DS-C2 straight flow switch for Dimension One
This flow switch is commonly found in Dimension One hot tubs. It makes sure that the circulation pump sends sufficient water into the heater to avoid any risk of overheating. If the flow is sufficient, the magnet sticks to the sensor rod and the flow information is sent to the control system.
It comes with a 1-metre cable, with a 2-pin female plug.
The transparent plastic tee has a barbed pipe connection for 3/4" flexible pipe on one side, and a smooth connection on the other side.
Dimensions
Length: 98 mm
Height : 68 mm
Flow switch dimensions (size "Small", in red on the diagram)
Thread diameter: 27 mm
Body length: 28 mm
Total height: 61 mm
Connections
1/2" Spg. x 3/4” Barb
There are several versions of this Harwil flow switch, all bearing the reference Q-12DS-C, with different thread lengths and sizes (see diagram opposite). This is the "Small" size.
References
Harwil (flow switch only): Q-12DS-C2
Harwil (flow switch + tee): Q12DSCSLA
Dimension One : 01512-199
