Nibe HPAC S40 Installateurhandbuch Seite 29

External blocking
External
AA25
24 23 22 21 20 19 18 17 16 15 14 13
AA5-X2
Passive cooling
A contact (NO) can be connected to AA5-X2:23-24 to
allow blocking of passive cooling operation. When the
contact closes, passive cooling is blocked.
External blocking
External
AA25
24 23 22 21 20 19 18 17 16 15 14 13
AA5-X2
Active cooling.
A contact (NO) can be connected to AA5-X2:21-22 to
allow blocking of active cooling operation. When the
contact closes, active cooling is blocked.
External blocking
External
AA25
24 23 22 21 20 19 18 17 16 15 14 13
AA5-X2
EXTERNAL SUPPLY TEMPERATURE SENSOR
(EB100-BT25)
If an external heat source or buffer vessel (UKV) is used,
the external supply temperature sensor (BT25) has to
be connected to your compatible heat pump. See the
Installer Manual for the heat pump.
NOTE
The sensor has controlling functions for cooling
and heating.
HPAC S40 | GB
EXTERNAL RETURN LINE SENSOR
(EB100-BT71)
If an external heat source or buffer vessel (UKV) is used,
the external supply temperature sensor (BT71) has to
be connected to your compatible heat pump. See the
Installer Manual for the heat pump.
CONNECTION OF CIRCULATION PUMP, IF
ANY (EQ1-GP10)
An external circulation pump (GP10) for the climate
system can, if necessary, be connected to HPAC S40.
Connect the circulation pump (GP10) to AA5-X9:8 (230
V), AA5-X9:7 (N) and X21:5 (PE).
HPAC S40
9
8
7
6
5
4
3
2
1
AA5-X9
X21
RELAY OUTPUT FOR ADDITIONAL COOLING
When there is more cooling demand and all compressors
in cooling operation have engaged and the degree
minutes for cooling have reached their maximum limit,
there is the option to connect additional cooling. A con-
tact (NO) can be connected to AA5-X9:5-6 to be able
to activate additional cooling. When the contact is
closed, additional cooling is activated.
HPAC S40
AA5-X9
1
2
3
4
5
6
7
8
9
RELAY OUTPUT FOR COOLING MODE
INDICATION
There is the option for an external cooling mode indica-
tion through the relay function via a potential-free
switching relay (max. 2 A) on the input board (AA2, ter-
minal block X27).
If cooling mode indication is connected to terminal block
X27, it must be selected in menu 7.4.
External
L
N
PE
GP10
External
29