Indoor Unit - Fujitsu NEORE B User Manual Installation Instruction

1* 2* 3* 4*
1* Outdoor temperature sensor
(must be connected; if is not, output water temperature will be
regulated to the default value of equithermal regulation 20°C)
2* Heating water temperature sensor (internal)
3* DHW temperature sensor
(sensor is placed inside of DHW tank; needed for direct DHW heating)
4* Indoor temperature sensor (reference room)
If you would like to use regulation by object temperature,
you have to activate it (Object -> Use an object sensor).
Then the heat pump corrects equithermal curve by indoor temperature.
Sensor types - all of the system ni1000 - 6180ppm/K

Indoor unit

actuator (servo)
mix. 2nd
(optional ESBE VRG131, ARA639)
M
Y T
Y
N
=
outdoor unit
3X1,5 Cu 5X2,5 Cu
3X4 Cu
indoor unit
25
DHW tank
max 2000W
6*
*
Terminal description - indoor unit
X1:L1 - 3 (podle typu) Lead 400/230V TN-C-S min 25A
XOU1:1 - 3 (podle typu) Outdoor unit power supply 400V max 16A
XB1.1; XB1.2 External bivalent source control (1. and 2.
stage). 230V max 2A
Xoběh Circulators power 230V max 6A
XOTUV DHW heating - DHW tank electric heater power
supply 230V max 10A
XcircT DHW circulation output 230V max 1A
XOAKU Output for use of secondary source (accu. tank
e.g. solar) 230V max 2A
XOBAZ Output for 3-way valve and pool circulation
control 230V max 2A
XNS Input for rate of cost- N, current 200mA
X24+ Output 24V+ ss
X24- Output 24V - ss
Xgnd Com for sensors Ni1000.
XTven Outdoor temperature sensor
XTobj Indoor temperature sensor
XTtopv Output water temperature sensor (internal)
XTvrat Input water temperature sensor (internal)
XTTUV DHW temperature sensor
XTaku Secondary source accu. tank temperature sensor
XTbaz Pool heating water temperature sensor
Xt2okr Secondary circuit heating water temperature
sensor
XL-1,XN-2,XC-3 Outdoor unit communication
X2gnd GND pin of actuator (servo) 0-10V 2nd circuit
X2-10V Signal pin of actuator (servo) 0-10V 2nd circuit
If the heat pump heats DHW,
connection of electric heater
is needed. It is used for tank
desinfection and as a backup
heat source.
Otherwise software will not
work correctly and might
completely exhausted
hot water!
5X4(6) Cu mm
- by type
*