Rehau Ba - Installation

11
Boiler
ZV
Manifold Flow Header
Manifold Return Header
ZV
AV
BPV
PV
TRV
LSV
CP
SV
RS
Junction Box
BA Controller
Radiator
CT2/R
CT2/HW
Hot Water Sensor
HWS
Hot
Water
Cylinder
CMU
CMU
HWS
CT2/R
CT2/HW
SV
ZV
HLS
AV
BPV
SV
PV
CS
RS
TMV
LSV
TRV
Compact Mixer Unit
Hot Water Supply
Radiator Controller
Domestic Hot Water Controller
Safety Valve
Zone Valve
High temperature Limit Thermostat
Air Vent
By pass Valve
Safety Valve
Pressure Vessel
Cylinder Sensor
Room Sensor
Thermostatic Mixing Valve
Lock Shield Valve
Thermostatic Radiator Valve
HLS
9. Hydraulic layout of REHAU Compact Mixer Unit with ‘S’ plan Integration
2.2.3 Installation
- If a module needs to be mounted onto the left side of the manifold:
- the pump inlet / outlet connections must be
loosened first
- rotate the pump 180ºC
- connections tightened again
- temperature gauge and opposite blanking plug unscrewed
- gauge and plug swapped over and screwed into tee adapter.
- The compact mixer is screwed onto the manifold flow/return
headers. Care should be taken that all connections are securely
tightened
- Balancing valve (BV) and thermostatic inlet valve (TIV) are screwed
onto the opposite ends of the manifold headers. (Balancing valve
(BV) to the FH flow header and thermostatic inlet valve (TIV) to the FH
return header)
- The probe of the thermostatic inlet valve (TIV) should be carefully
inserted into the sleeve in the tee-connector underneath the
circulating pump (CP) (return header).
Fitting
- The compact mixer comes pre-assembled, ready to fit onto the
right hand side of the REHAU manifold. It can be integrated into
an existing radiator system via an 'S' plan type control system.
(As shown in Fig. 9)
Due to the inability of a 3-Port mid position valve to isolate both
system ports i.e. DHW & Radiators, it is recommended that this
type of valve is not used with the Floor Heating system.
The thermostatic inlet valve (TIV) must be fitted onto the
system flow pipework from the boiler, not onto the return
pipework to the boiler.
Required Components Qty
Supplied
by REHAU
REHAU Compact Mixer Unit 1x Yes
REHAU Valve Set 1x Yes