Nibe ACVM 270, Installation And Maintenance Instructions Manual

Page: 15 / 96

Maintenance
ACVM 270 and AMS 10 require minimal maintenance after
commissioning.
NIBE SPLIT ACVM 270 contains many components and is
why monitoring functions are integrated to help you.
If something abnormal occurs, a message appears about
malfunctions in the form of different ”alarm” texts in dis-
play.
Checking the safety valves in ACVM 270
ACVM 270 has been equipped with a safety valve for the
water heater as well as a safety valve for the climate system
by the installer.
The climate system's safety valve
LEK
FL2 BP5
The climate system's safety valve (FL2) must be completely
sealed. Checks must be carried out regularly as follows:
■
Open the valve.
■
Check that water flows through the valve. If this does
not happen, replace the safety valve.
■
Close the valve again.
■
The climate system may need to be refilled after checking
the safety valve, see the section “Filling the climate sys-
tem”. Contact your installer for refilling the climate sys-
tem.
Hot water heater safety valve
The water heater's safety valve sometimes releases a little
water after hot water usage. This is because the cold water,
which enters the heater to replace the hot water, expands
when heated causing the pressure to rise and the safety
valve to open.
Also check the water heater safety valve regularly. The
appearance and location of the safety valve differs
between different installations. Follow the cold water pipe
to locate the safety valve. Contact your installer for inform-
ation.
Pressure gauge in ACVM 270
The working range of the climate system is normally 0.5 –
1.5 bar when the system is closed. Check this on the pres-
sure gauge (BP5).
Emptying the hot water heater
The water heater is of the coil type and is drained using
the siphon principle. This can be done either via the drain
valve on the incoming cold water pipe or by inserting a
hose into the cold water connection. See page 20.
Emptying the vessel
Contact your installer if the vessel in ACVM 270 needs
emptying.
Maintenance of AMS 10
AMS 10 is equipped with control and monitoring equip-
ment, however some exterior maintenance is still neces-
sary.
Make regular checks throughout the year that the inlet
grille is not clogged by leaves, snow or anything else.
During the cold months of the year, check to make sure
that there isn't a build up of ice or frost under AMS 10.
Strong wind combined with heavy snowfall can block the
intake and exhaust air grilles. Make sure that there is no
snow on the grilles.
Also check that the condensation water drain under
AMS 10 is not blocked.
If necessary the outer casing can be cleaned using a damp
cloth. Care must be exercised so that the heat pump is not
scratched when cleaning. Avoid spraying water into the
grilles or the sides so that water penetrates into AMS 10.
Prevent AMS 10 coming into contact with alkaline cleaning
agents.
!
WARNING!
Rotating fan in AMS 10.
Saving tips
Your NIBE SPLIT ACVM 270 installation produces heat and
hot water according to your needs. It also attempts to carry
out all requirements with all available ”aids” from the
control settings made.
The indoor temperature is naturally affected by the energy
consumption. Therefore, take care not to set a temperature
higher than necessary.
Other known factors that affect the energy consumption
are, for example, hot water consumption and the insula-
tion level of the house, as well as the level of comfort you
require.
Also remember:
■
Open the thermostat valves completely (except in the
rooms that are to be kept cooler for various reasons, e.g.
bedrooms).
Thermostat valves in the radiators and floor loops can
negatively affect the energy consumption. They slow the
flow in the climate system, which the heat pump wants to
compensate with increased temperatures. It then works
harder and consumes more electrical energy.
15 NIBE™ SPLIT ACVM 270
For Home Owners
Maintenance