Part 10 - Lighting the appliance / First start-up
Warning
The initial lighting of the appliance must be performed by a licensed Gas
Technician. Failure to follow these instructions may result in property damage, serious injury or death.
As soon as the appliance has been fully installed (with regard to hydraulics, de-air of installation, gas, flue gas,
air intake, wiring etc.) according to the preliminary installation instructions, it's allowed to put the power plug
into a grounded wall socket. The grounded line cord and grounded wall socket must be reachable for service
purposes at any time.
Warning
Ensure the appliance is wired in accordance with this manual (section 9).
Ensure the system is completely filled with water, and that ALL the air is purged out. The
automatic air vent cycle takes approximately 6 minutes (s
ee “Fill and refill” in this section)
.
Ensure the gas shut-off valve is turned on (only after ALL air is purged out), and that the gas
system has been fully tested for leaks.
Fill and refill of the CH section
The appliance continuously checks the CH-pressure. In case the pressure is too low (below 0.8 bar / 10 psi)
the refill notification on the front side of the boiler lights up in orange. The display shows the system pressure.
The
boiler is provided with a special filling system. By opening the filling valve the CH-system will
be filled.
Reset button
Filling valve
Figure 10.1 Filling valve location
By opening the filling valve (turn) the system pressure will increase in a C model boiler. This will be shown on
the display. As soon as the system pressure has reached the correct value (1.5 bar (22 psi)), 'reset' will light up
in the display. Close the filling valve when the water pressure is 1.5 bar (22 psi). By subsequently pushing the
reset button the system is ready for the next step in the first start-up process. With an H model boiler the
pressure must be increase with an external fill valve such as a Watts 1156F pressure reducing valve.
Notice
The LED ‘REFILL' lights up when the water pressure is too low (below 0.8 bar (10 Psi)). If the pressure is
below 0.7 bar (10 Psi), the unit stops functioning.
Caution
The display shows the water pressure. Make sure that the water pressure is always
between 1 and 2.0 bar (14.5 and 29 Psi). In case the system needs filling up more than 3 times a year, contact
a registered installer or a registered service centre
.
Caution
Use the filling valve integrated in the boiler to (re)fill the appliance. Automatic refill is not recommended.
Warning
56
R Series