Maintenance And Service; Symptom: The Water At The Tap Is Too Cold; To Find The Contact/Helpdesk Number; Symptom: You Are Feeling Too Cold (Hot) In Your Living Room - Rotex HPU Hybrid Série Manuel D'utilisation

7 Maintenance and service

7 Maintenance and service
7.1 Overview: Maintenance and
service
The installer has to perform a yearly maintenance. You can find the
contact/helpdesk number via the user interface.
As end user, you have to:
▪ Keep the user interface clean with a soft damp cloth. Do NOT use
any detergents.
▪ Regularly check if the water pressure indicated on the gas boiler is
above 1 bar. Switch off the boiler to see the pressure on the main
display of the gas boiler. Ignore the error that appears on the user
interface. When you turn the gas boiler back on, the error will
disappear.
Refrigerant
This product contains fluorinated greenhouse gases covered by the
Kyoto Protocol. Do NOT vent gases into the atmosphere.
Refrigerant type: R410A
Global warming potential value: 1975
Periodical inspections for refrigerant leaks may be required
depending on the applicable legislation. Please contact your installer
for more information.
7.2 To find the contact/helpdesk
number
Go to [6.3.2]: > Information > Error handling > Contact/helpdesk
number.
8 Troubleshooting
8.1 Symptom: You are feeling too cold
(hot) in your living room
Possible cause
The desired room temperature is
too low (high).
The desired room temperature
cannot be reached.
Operation manual
20
Corrective action
Increase (decrease) the desired
room temperature.
If the problem recurs daily, do
one of the following:
▪ Increase (decrease) the room
temperature preset value.
▪ Adjust the room temperature
schedule.
Increase the desired leaving
water temperature in accordance
with the heat emitter type.
8.2 Symptom: The water at the tap is
too cold
Possible cause
Your tank ran out of domestic hot
water because of unusual high
consumption.
The desired DHW tank
temperature is too low.
The instant DHW temperature is
too low. (Only applicable when
no tank is installed).
8.3 Symptom: Heat pump failure
When the heat pump fails to operate the gas boiler can serve as an
emergency back-up heater and either automatically or non-
automatically take over the entire heat load. When auto emergency
is activated and a heat pump failure occurs, the boiler will
automatically take over the heat load. When a heat pump failure
occurs and auto emergency is not activated, the domestic hot water
and space heating operations will stop and need to be recovered
manually. The user interface will then ask you to confirm whether the
boiler can take over the entire heat load or not. When the heat pump
fails, will appear on the user interface.
Possible cause
Heat pump is damaged.
INFORMATION
When the gas boiler takes over the entire heat load, gas
consumption will be considerably higher.
9 Glossary
DHW = Domestic hot water
Hot water used, in any type of building, for domestic
purposes.
LWT = Leaving water temperature
Water temperature at the water outlet of the heat pump.
Corrective action
If you immediately need domestic
hot water, activate the DHW tank
booster mode. However, this
consumes extra energy.
If you can wait, overrule
(increase) the active or next
scheduled desired temperature
so that more hot water will be
produced exceptionally.
If the problems recurs daily, do
one of the following:
▪ Increase the DHW tank
temperature preset value.
▪ Adjust the DHW tank
temperature schedule.
Example: Program to
additionally heat up the
DHW tank to a preset value
(Storage eco = lower tank
temperature) during the day.
Increase the instant DHW set
point temperature.
Corrective action
▪ Press to view a description
of the problem.
▪ Press again.
▪ Select to allow the gas
boiler to take over the entire
head load.
▪ Call your local dealer to get
the heat pump fixed.
RHYHBH05AA + RHYHBH/X08AA
ROTEX HPU hybrid heat pump module
4P353066-1B – 2013.10