Nibe F370 Installer Manual page 58

– If mode "manual" is selected, select "addition".
• Large hot water consumption.
– Wait until the hot water has heated up. Temporarily
increased hot water capacity (temporary lux) can be
activated in menu 2.1.
• Too low hot water setting.
– Enter menu 2.2 and select a higher comfort mode.
LOW ROOM TEMPERATURE
• Closed thermostats in several rooms.
– Set the thermostats to max, in as many rooms as
possible. Adjust the room temperature via menu
1.1, instead of choking the thermostats.
See the "Saving tips" section in the User manual for
more detailed information about how to best set the
thermostats.
• F370 in incorrect operating mode.
– Enter menu 4.2. If mode "auto" is selected, select a
higher value on "stop heating" in menu 4.9.2.
– If mode "manual" is selected, select "heating". If this
is not enough, select "addition".
• Too low set value on the automatic heating control.
– Enter menu 1.1 "temperature" and adjust the offset
heating curve up. If the room temperature is only
low in cold weather the curve slope in menu 1.9.1
"heating curve" needs adjusting up.
• "comfort mode" "luxury" selected in combination with
large hot water outlet.
– Enter menu 2.2 and select "economy" or "normal".
• "Holiday mode" activated in menu 4.7.
– Enter menu 4.7 and select "Off".
• External switch for changing room temperature activ-
ated.
– Check any external switches.
• The heating medium pump (GP1 has stopped.
– See section "Helping the circulation pump to start"
on page 54.
• Air in the climate system.
– Vent the climate system (see
• Closed valves (QM31), (QM32) to the climate system.
– Open the valves.
HIGH ROOM TEMPERATURE
• Too high set value on the automatic heating control.
– Enter menu 1.1 (temperature) and reduce the offset
heating curve. If the room temperature is only high
in cold weather the curve slope in menu 1.9.1
"heating curve" needs adjusting down.
58 Chapter 10 | Disturbances in comfort
• External switch for changing room temperature activ-
LOW SYSTEM PRESSURE
• Not enough water in the climate system.
LOW OR A LACK OF VENTILATION
• Filter (HQ10) blocked.
• The ventilation is not adjusted.
• Exhaust air device blocked or throttled down too
• Fan speed in reduced mode.
• External switch for changing the fan speed activated.
HIGH OR DISTRACTING VENTILATION
• Filter (HQ10) blocked.
• The ventilation is not adjusted.
• Fan speed in forced mode.
• External switch for changing the fan speed activated.
THE COMPRESSOR DOES NOT START
• There is no heating requirement.
• Compressor blocked due to the temperature condi-
page 33).
• Minimum time between compressor starts has not
• Alarm tripped.
ated.
– Check any external switches.
– Top up the water in the climate system (see
33).
– Clean or replace the filter.
– Order/implement ventilation adjustment.
much.
– Check and clean the exhaust air devices.
– Enter menu 1.2 and select "normal".
– Check any external switches.
– Clean or replace the filter.
– Order/implement ventilation adjustment.
– Enter menu 1.2 and select "normal".
– Check any external switches.
– F370 does not call on heating or hot water.
– The heat pump defrosts.
tions.
– Wait until the temperature is within the product's
working range.
been reached.
– Wait for at least 30 minutes and then check if the
compressor has started.
– Follow the display instructions.
page
NIBE F370