Technical data
Procon
. RVA Z C (B)
The RVA Zone Controller (Black) is a match controller for the RVA
(Grey), and is located in the Left-Hand position of the RVA Housing.
The RVA can provide the drive signals for the Zone Circulation
pump and Mixing Valve (Supplied by Others).
If a mixing value is required to acco mm odate lower operating tem-
peratures from that of the other Zones, then a QAD ow sensor will
be required, available as an optional extra.
External control input to the RVA can be a QAA, QAA or
QAA Modulating Room Unit.
Please refer to instructions supplied with the RVA for program-
ming instructions (Ref. - LRVAQG/LRVAS)..
. RVA Z C (G) H
The RVA Controller (Grey) is a comprehensive controller that can
be wall or control panel mounted. The Procon boiler MUST be tted
with an OCI Communication Clip-In Module, see item ..
The RVA can provide the drive signals for two heating primary
pumps and mixing valves (if required) and can provide control for
stored domestic hot water, with the RVA providing the drive signal
for a hot water primary circuit pump.
If a mixing value/s is required to acco mm odate lower operating
temperatures from that of the other Zones, then a QAD or ow
sensor will be required per zone, available as an optional extra.
External control inputs to the RVA can be by either, Volt Free En-
able contact (e.g. time clock), or QAA, QAA, QAA Modulating
Room Units. An external control input is required per zone. The RVA can also be linked to an RVA for Multiple
boiler installations.
Please refer to instructions supplied with the RVA for programming instructions (Ref. - LRVAQG/LRVAS).
. S C.
The Procon , , & boilers can be connected to a number of di erent types of heating and hot water
systems. Depending upon how the boiler is to be utilized will depend upon how the boiler is wired and con-
gured in the boilers parameters.
The following System Types show standard Hydraulic layouts, wiring diagrams, and the necessary parameter
changes. If the system you have installed is not shown in one of these standard layout, we would recommend
that you consult with RVR Boilers Technical Department for further advice.
If the System Type to be installed requires parameters to be changed, these will need to be undertaken dur-
ing the commissioning of the boiler.
To access the ‘Engineer Level’, press and hold the
▲▼
PROG buttons simultaneously, for approximately
second, until H appears on the screen. Use the
▲
and
▼
PROG buttons to access the required parameter
number, and use the + and – buttons to alter/adjust the required parameter value. On completion of satisfactory
adjustment/s to a/any parameter, the INFO button must be pressed to store the amendments and to return to
the normal operating display.
A full list of Parameter and Default Values in listed in Section .
Please Note;
When changing Parameter No 552 (System Hydraulics’) the pump connections K1 and K2 for the internal
pump and the external Heating Circuit may vary.
On the Procon 15, 25 & 45 boilers the internal pump wiring may need to be re-located from the factory
position, as detailed on the System Type Wiring Diagrams.
Procon 15 & 25 – K1 (Terminals 16 & 17) to position K2 (Terminals 13 & 14),
Procon 45 – K2 (Terminals 13 & 14) to position K1 (Terminals 16 & 17),
Fig .
Fig .