21
FIxEd Flow tEMPERAtURE contRol
2-PoRt ZonE vAlvE (Zv)
2.0
2.4
Fitting
(always read and follow instructions supplied with components
)
- The valve should be installed without blocking any vent or cold feed
when closed
- Positioning the zone valve (ZV) at an angle is possible, but it must
not be mounted so that the powerhead is below the horizontal level
of the pipework
- For recommended positions refer to Fig. 17.
If fitted in a confined space, sufficient ventilation must be available
to keep the valve within its ambient temperature range. Also access
must be provided to remove the powerhead if necessary.
2.4.2 Installation
HLS
UFH - Manifold
IV
CP
IV
IV
ZV
AC
TMV
UFH - Flow
MOV
HLS
UFH - Manifold
IV
CP
IV
IV
ZV
AC
TS
UFH - Return
UFH - Flow
UFH - Return
HLS
UFH - Manifold
AC
ZV
BV
TIV
UFH - Return
UFH - Flow
CP
3 Port Mixing Valve
4 Port Mixing Valve
Compact Mixer Unit
17. Two locations of zone valve: Compact mixer, 3-Port mixing valve
Required Components
Qty
Supplied
by REHAU
2-Port Zone Valve of correct size
1x
Yes