Technical data

Procon
. C
The Procon MUST be commissioned by a competent engineer who will need, in addition to standard hand
tools, a U-Tube or Digital manometer and a combustion analyser.
Before attempting to set the Procon to work, the following check list must be worked through. See Section
.
. P- C
• Ensure the entire system has been thoroughly cleansed and  ushed, any strainers have been cleaned and
that the appropriate water treatment has been added to the system to prevent corrosion, scale formation,
etc. Failure to comply with this will render all appliance warrantee’s VOID!
• Ensure the entire system and boiler has been properly  ooded and vented of air, and the cold  ll pressure
at the boiler is at minimum . bar. Manual air vents are provided on the top of the primary heat exchanger
to ensure that the heat exchanger is fully  ooded.
• Check that the boiler pump is free to rotate by removing the vent screw in the end of the pump motor and
check that the impeller shaft rotates freely when turned with an appropriate sized screwdriver. Replace
vent screw. Please note, it is advisable to place a rag/cloth directly below the pump, as a small amount of
water will be released from the pump when the vent cap is removed, this is normal.
• Ensure the appliance installed is the correct con guration for the type of gas fuel available on the site. As
standard the boilers are supplied suitable for Natural Gas. If the boiler is required to operate on LPG gas
fuel see section ..
• Ensure the entire gas supply pipework has been purged, and there is the availability of a working inlet
pressure of nominal  mbar (Natural Gas), of  mbar (LPG).
• Check that the  ue installation has been properly connected and tested.
• Check that the condense waste pipework (Plastic or Stainless Steel – Copper tube is not acceptable) has
been connected to the boiler and that the syphon cleaning point cap is in place.
• Where the appliance is taking air for combustion from the room/enclosure in which it is installed, ensure
that an adequate provision of ventilation has been provided.
• Ensure that there is an adequate heat load available.
• Ensure that all electrical connections have been made correctly, tested, and that the polarity is correct.
. LPG C P
The Procon boilers is supplied as standard suit-
able for Natural Gas (G) fuel, the boiler can be
converted to operate on Lique ed Petroleum Gas
(G – Propane).
A conversion kit is available from RVR Boilers,
Part Number as listed below, and only the parts
supplied in this conversion kits are to be used.
The following procedure details the works re-
quired to convert a Procon boiler to LPG fuel gas.
The LPG injector must be installed into the out-
let of the gas valve in place of the existing Natural
Gas injector.
Utilizing a  ue gas analyser the gas valve must
be adjusted to give the following emissions.
High Fire . CO.
Low Fire . CO.
See Section ., for instructions on how to ad-
just the gas valve..
H H H H
LPG Injector Size ( mm ) . mm ∅  mm ∅  mm ∅  mm ∅
Natural Gas Injector Size ( mm )  mm ∅  mm ∅  mm ∅  mm ∅
Fig . – Procon  Illustrated Only
Combustion
Fan
Injector
Gas Valve
