Procon
. S T .
Typical single Procon , , & boiler installation utilizing an AGU. Clip-In Module and an RVA
Controller serving four heating zones, three of which having mixing valves, and domestic hot water (priority)
with individual charging pumps, using a low velocity mixing header. RVA Controller & Housing, No QAD/
ow sensors, an AGU. Clip-In Module, a QAD ow sensor, and an OCI Communication Clip-In Module
required.
Please note;
• The Procon , & models include an internal pump and therefore an external boiler pumpis
not required.
• The boiler pump on the Procon must be wired to K (Terminals X-)
Fig .a – Hydraulic Layout
Fig .b – Wiring Diagram for Models , &
Legend
C Heating Zone & Temp
Controller (QAA) or Volt
Free Enable
C & Heating Zone & Temp
Controllers ( Per Zone re-
quired either QAA, QAA
or QAA) or Volt free Enable
OS Outside Air Sensor (QAC)
or
Ω Resistor {Fitted to
RVA}
SV Safety Valve.
IV Isolation Valve
LSV Lockable Service Valve
S/T Hot Water Sensor (QAZ), or
Volt Free Enable
CWM Cold Water Main
DOC Drain O Cock
ZFS Zone Flow Sensor (QAD)
ZFS Zone & Flow Sensor
ZFS (QAD/)
Notes
* Only t one type of Room
Temperature Control.
* Parameter Change may be
required.
* Heating Zone
* Heating Zone , via AGU.
Clip-In Module.
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