93
Aquarea air / water heat pump – design handbook 07 / 2014
Project Design
Electrical connection
Connections to the inputs and outputs
5.12.2 Connections to the inputs and outputs
Terminals
Connection
Function
Condition
Cable
cross-
section
1 to 3
2-way directional
valve
Output for the activation of the
2-way directional valves (e.g. for
underfloor heating system, cooling)
3 × min.
0.5 mm²
4 to 6
3-way directional
valve
Output for the activation of the
3-way directional valves (e.g. for
heating, hot water tank)
5: Tank, 4: Heat
3 × min.
0.5 mm²
Earth to 8 Electric immersion
heater
Output for switching on / off the
electric immersion heater
The maximum power of the hot water
electric immersion heater should be
maximum 3 kW
3 × min.
1.5 mm²
9 to 12
Room thermostat Input for room thermostat signals
4 and / or
3 × min.
0.5 mm²
13 to 14 Overload protec-
tion for hot water
tank
Input for overload protection
of the hot water tank
volt free
Terminals 13 / 14 must be bridged when
no overload protection is used for the hot
water storage
2 × min.
0.5 mm²
15 to 16 Temperature
sensor for hot
water tank
Input for temperature sensor
of the hot water tank
2 Kohlms @ 25 °C NTC
2 × min.
0.5 mm²
17 to 18 Ext. control signal Input for external control signal
volt free
These two terminals are bridged during
delivery. Connection: 1-pole (min. 3 mm
contact gap)
2 × min.
0.5 mm²
19 to 21 Solar 3-way direc-
tional valve
Output for activation of the solar
3-way directional valve
Additional solar PCB required
3 × min.
0.5 mm²
22 to 23 Solar pump station Input of the ON signal of Solar
pump 2 (230 V AC)
Use additional circuit board CZ-NS1P,
CZ-NS2P or CZ-NS3P
2 × min.
0.5 mm²
Terminal strip and table of the input and outputs with function
CLOSE
OPEN
N
1 2 3 4 5 6
7 8 9 10 11 12
13 14 15 16 17 18
19 20 21
22 23
CLOSE
OPEN
CLOSE
OPEN
N
COOL
Electric
immersion
heater
Room
thermostat
Overload protection for hot water tank
Ext. control signal
Temperature
sensor for
hot water tank
Solar pump
station
2-way
directional
valve
3-way
directional
valve
Solar 3-way
directional
valve
HE
AT
N
L
N
Note
For easy connection of a hot water tank provided by the customer,
Panasonic offers a temperature sensor installation kit for a foreign tank.
This article bears the designation CZ-TK1.
Note
The outside temperature sensor is located in the outdoor or monobloc
unit and must not be installed or connected because the measured
values are transmitted via an internal BUS line.