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Turn off any other gas appliances connected to the gas meter to which
the boiler is directly connected, Turn the boiler to maximum (see Service
Mode) and operate for approximately 10 mins to allow the appliance to
warm up and for any expansion of the burner to take place (if you have
issues with excess temperature in the boiler running the DHW outlet with a
minimum of 12l/min will assist with this issue (for combi boilers)).
Carry out a gas rate and ensure you follow the gas rating procedure as
per the current Domestic Gas Safety legislation and requirements, once
the gas rate is complete instruct the boiler to exit the Service Mode (see
Service Mode).
Please refer to the technical table in the boiler manual to confirm the
correct gas rate.
Ensure you retain the details of the gas rate to record them in the
appropriate section of the Benchmark documentation.
For smart meter installations please follow the instructions from the meter
supplier for the correct usage of the display menu.
GAS RATE INFO
CAUTION
It is very important to ensure the boiler gas rate is correct as this will
determine how much gas is being burnt and how much heat is released
from the boiler.
This is important with regards the efficiency and safe operation of the
boiler.
When carrying out a gas rate, if you are using an App based calculator to
determine the figures please ensure it is a valid calculator and is from a
trusted source.
Warmhaus advise you check the data shown on the calculator routinely by
carrying out a gas rate as per the current gas working practices manually
and compare the figures.
If the App calculator is proven to be accurate and can be used as a trusted
source then Warmhaus will be happy to accept the results given by this
method.
When comparing the gas rate data from your test please use the DHW
figures on the data badge or the stated gas rate in the technical data chart
is this manual as the reference and not the CH data.
For any additional technical data regarding this test please call Warmhaus
technical on 020 7164 6233
4.10. CIRCULATION PUMP ROTATION
CAUTION
Please manually rotate the impeller on the circulating pump inside the
boiler before turning on the power supply to the boiler to ensure pump is
not seized.
Display Functions in Standby
Setting Flow Temperature
When the system boiler is started, a flame modulation symbol is seen at
the middle section of the screen. At that position, you can increase and
decrease the temperature with CH temperature adjustment buttons
between 35 – 80 °C. The screen lights up when buttons are pressed and °C
symbol flashes besides the CH temperature value.
4.11. SETTING UP THE EXTERNAL CONTROLS
Ensure all wiring for the external controls are connected to the boiler and
the external control as per the manufacturer’s instructions and ensure that
the settings are adjusted to the customer’s requirements.
B:
REMOVE THE BRIDGE WIRE FROM THE ROOM THERMOSTAT / TIMER
TERMINAL B WHEN THE TIMER OR OPENTHERM ROOM THERMOSTAT
CONNECTED THE BOILER!
