Installation - BROTJE VR 415 VA 1001-1000 Montageanleitung

Installation

3. Installation
Fig. 1: Gas valve VR 415 VA / VR 420 VA / VR 425 VA / VR 434 VE
Compensation line
Adjustment screw
for full load
(Allen key 3 mm)
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Risk of electrocution! Before starting the work, isolate the system from the power
supply and safeguard against unintentional reconnection!
Danger of life by gas! All work in connection with the installation must only be car-
ried out by an approved gas installer!
Before starting work disconnect the power supply and close the gas cutoff device.
Use the enclosed seals during installation. Check connections for leaks! The gas
valve and the gas line must only be pressurised with max. 100 mbar.
1. Unplug the connector and the hose of the faulty gas valve.
2. Disconnect the gas connections and remove the defective gas valve.
3. Remove the protective covers on the new valve and install the valve with new
seals (included).
During this, note that the installation location of the gas valve can vary depend-
ing on the device type of the heating system.
4. Plug the connector back in and replace the hose.
5. Open the gas cut off device and bleed the gas line if necessary.
To do this open the pressure points for the connection pressure (see Fig. 1) and
bleed, following the safety regulations. .
6. Check the connections for leaks. Pay attention to the maximum test pressure!
7. Put the boiler into operation and check the CO
and set if necessary.
Gas valve VR415, 420, 425, 434
Adjustment screw
for small load
Gas pressure monitor
Measuring nozzle
for inlet pressure
content with full and small load
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7312109 - 03 - 28082019