section 8: operation
Page 44
8.7 night mode
If there is a need to reduce the electricity consumption or noise
produced by the compressor, e.g. in night-time operation, it is
possible to activate the night mode function using an external
contact, e.g. a timeswitch (with volt free contacts) connected
between terminals 28-29 on the PCB terminal.
To enable these terminals, parameter 5128 must be set to 1. Refer
to Table 8-27.
When the night mode function starts, according to the time setting,
the maximum frequency will be decreased to the value selected on
parameter 4111 in the ON time by time band setting (refer to Table
8-27). Otherwise it will operate in normal mode.
Night mode contact
Contact OPEN = Night mode OFF
Contact CLOSE = Night mode ON
28
29
Terminal PCB
Night
mode
figure 8-26:
Night mode
Parameter 5128 (night mode) and parameter 5130 (low tariff are
automatically synchronized to same value.
If parameter 5128 is changed to 1 (enable), then parameter
5130 will be also changed to 1 (enable).
With parameters 5128 and 5130 both set to 1 (enable), the night
mode and low tariff function will operate independently of each
other.
! nOtE !
During night mode with night mode contact on, if parameter
5128 is changed to 0, the heat pump will continue to operate in
night mode.
During night mode by the remote controller button, if
parameter 5128 is changed to 1, the heat pump will follow the
signal of on/off by night mode contact.
! nOtE !
table 8-27:
Night mode parameters
level
Parameter
function description
Display and input value
remarks
Group
code
Default
Min.
max.
Unit
I
51 28
Terminal 28-29 : Night mode
0=disable (Remote controller only)
1=enable
0
0
1
-
Parameter 5128
and parameter
5130 are
synchronized in
same value
I
41 11
Maximum frequency of Night mode
80
50
100
5%
For details of how to access the parameter settings, refer to Section 9.3.
Summary of Contents for Aerona3 HPID12R32
Page 71: ...NOTES Notes Page 71...
