Coopra 15B User Manual

Coopra Advanced Heating Technologies User instructions 15B, 15C, 37K, 37B, 37C, 40C
3
Tips
Depending on how much you value optimum comfort and
the lowest possible energy consumption, the following tips
can help you make optimum use of your unit:
- To help limit the energy consumption, it is recommended
to set the room thermostat to a lower temperature a few
hours before going to bed.
- Shut the radiator taps off in the rooms where you do not
want any heating.
- Turn all radiator taps fully open in the rooms that you
want to heat.
Holidays
With long-term absence, for example in the holidays, it is
recommended to leave the mains continually switched on.
The reason is to let the boiler makes a check every 24
hours.
If frost can be excluded, set the room thermostat to a low
temperature.
If frost cannot be excluded, set the room thermostat to a
temperature of 12°C or higher. The boiler is protected
with an internal frost protection. However, this does not
guarantee protection of the installation against freezing,
e.g. radiators.
Brrrr, the central heating is not working
The central heating boiler is a fairly complicated item that
is fitted with safety devices, which prevent a dangerous
situation. There can be many reasons why the central
heating is not working.
In the unlikely event that the central heating has let you
down, just when you desperately need the boiler, check
things before calling an installer for help.
Electricity
When the light of the mains switch is
on, then the boiler is connected to
the supply.
After restoration of supply power
boiler runs a de-aeration program, Status display is P.
Gas
Is the gas cock in open position?
Is there an (unusual) interruption in the gas supply?
Check by seeing whether a gas cooker in the kitchen is
working. If it is not working, call the gas company.
The gas flow can be blocked, for instance by the gas
valve strainer; then call the installer or maintenance man.
Water pressure
The user has to check the water pressure regularly and
has to top up and de-aerate the installation as necessary.
The working range of the boiler is between 0,5 and 3,5
bar. With lower and higher water pressures the burner is
blocked and the boiler gives no heat.
Water pressure reading
To read the water pressure press the (+) button for at
least 10 seconds. The Status shows P /u and the right
hand display shows the actual water pressure.
To return to normal mode, press the (-) button briefly
Automatic return is by time-out, after 3 minutes.
During operation with water pressure below 0,5 bar, the
burner is blocked. The status shows P.
Solution: Top-up with domestic water.
Filling
- Fill the system with domestic
water.
- Fully open all radiator taps.
- Connect the hose tube to the
cock of domestic water supply.
- First fill the hose tube with water
and let the air in the hose tube
escape, because you want to fill
the installation with water instead air.
- Then connect the hose tube to the filling point of the
installation, open both cocks with caution and top-up the
installation with water.
- Advised is a fill pressure between 1,5-2,0 bar.
- When the water pressure is sufficient, close the cocks
and remove the hose tube.
- After filling, the installation must be vented.
Venting
This is done with the pump(s) off. Running water can
move the air bubbles through the system constantly.
During the venting process you can switch the boiler
pump off by the boiler mains switch.
- Open radiators.
- Open the bleed cocks of the
installation one at a time. Use a
bleed cock key to do so. As soon as
water comes out of the bleed cock,
shut the cock.
- Vent the boiler, and if applicable
the hot water HWS cylinder or internal tank of
Combiboiler as well.
- After venting switch the boiler mains switch on and then
the indicating light is on.
water pressure
in bar
Status
P/u
press and hold the (+)
button for at least 10 sec.

Coopra 15B Specifications

General

Brand	Coopra
Model	15B
Category	Boiler
Language	English