Nibe ACVM 270, Installation And Maintenance Instructions Manual

Page: 37 / 96

The result should be checked and adjusted further, if ne-
cessary.
Commissioning ACVM 270 without AMS 10
ACVM 270
1. Check that the temperature limiter (FD1) has not
tripped.
2. Switch on the circuit breaker and check that the mini-
ature circuit breaker (FA1) in ACVM 270 is on.
3. Set switch (SF1) to ”1”.
4. Select operating mode "Add. heat only" by holding in
the operating mode button for 7 seconds.
5. Set the date and time in menu 7.1 and 7.2.
6. Select “Service" in menu 8.1.1.
7. Select additional heat type in menu 9.2.8.
8. Set the fuse size on knob (R24). Check the value in
menu 8.3.1.
9. Set the max immersion heater output on knob (R25).
Check the value in menu 8.3.2.
10. Select the desired curve slope in menu 2.1.2 and set
the parallel offset using the knob. Also see section
Default setting on page 11.
Checking external addition with internal
immersion heater blocked
1. Select "Ext. 1 step" in menu 9.2.8.
2. Select operating mode "Add. heat only" by holding in
the operating mode button for 7 seconds.
3. Ensure that the max temperature from the external
additional heat does not exceed 65 °C.
4. Select operating mode "Auto" by pressing the operat-
ing mode button.
Checking external addition (not controlled by
ACVM 270) with internal immersion heater as
backup
1. Adjust the start temperature of the additional heat so
that it starts at a higher temperature than the internal
electric additional heat (see set value in menu 1.2).
2. Adjust the additional heat's stop temperature so that
the temperature in ACVM 270 does not exceed 65 °C.
Inspection of the installation
Current regulations require the heating installation to be
inspected before it is commissioned. The inspection must
be carried out by a suitably qualified person and should
be documented. Use the check list on the following page.
The above applies to closed climate systems.
Do not replace any part of the split-system without carrying
out new checks.
Cleaning the particle filter
Clean the particle filter (HQ1) after installation.
1. Close valve QM31 and the valve by the particle filter
(HQ1).
2. Open the safety valve (FL2) to ensure that the pressure
in the tanks falls.
3. Clean the particle filter (HQ1) as illustrated.
Old
Secondary adjustment
Air is initially released from the hot water and venting may
be necessary. If gurgling sounds can be heard from
ACVM 270 or from the climate system, the entire system
will require additional venting.
NOTE
Use the vent valves (QM20, QM24 and QM60), any
external vent valves as well as safety valve (FL2). The
latter must be operated carefully as it opens quickly.
When the system is stable (correct pressure and all
air eliminated) the automatic heating control system
can be set as required.
See Default setting on page 11.
37 NIBE™ SPLIT ACVM 270
For the Installer
Start-up and inspection