58
Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
Product Description
59
Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
Product Description
4.7.2 External interfaces (in-/outputs)
The Aquarea heat pumps offer the option of connecting useful accessories through external
interfaces, such as an external room thermostat or integrating the heat pump in a GLT system.
4.7.2.1 External interfaces for F- and G-Generation models
The overview of external interfaces is valid for the following models:
Split systems
Compact systems
HT
WH-SHF WH-UH09FE5
HT
WH-MHF09G3E5‘
WH-SHF WH-UH12FE5
WH-MHF12G6E5
WH-SHF WH-UH09FE8
WH-MHF09G3E8
WH-SHF WH-UH12FE8
WH-MHF12G9E8
Overview of the External Interfaces
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
HEA
T
N
L
N
2-way valve
3-way valve
E-Heating
element hot
water tank
Room
thermostat
Temperature
sensor for hot
water tank
Overload
protection for hot
water tank
External control
signal
Solar 3-way
valve
Solar pump
station
Terminals
Connection
Function
Condition
Cable cross
section
1 to 3
2-way valve
Output for actuation of the 2-way valve
(e.g. for floor heating, cooling)
3 × min.
0.5 mm²
4 to 6
3-way valve
Output for actuation of the 3-way valve
(e.g. for heating, domestic hot water tank)
3 × min.
0.5 mm²
Earth to 8
E-Heating element hot
water tank
Output for on/off switch of the E-heating
element hot water tank
The maximum power output of the
E-heating element hot water tank should
be maximum 3 kW.
3 × min.
1.5 mm²
9 to 12
Room thermostat
Input for room thermostat signals
4, or 3 × min.
0.5 mm²
13 to 14
Overload protection
for domestic hot water
tank
Input for overload protection of the
domestic hot water tank
The terminals 13/14 must be used if
overload protection is not used for the hot
water tank.
2 × min.
0.5 mm²
15 to 16
Temperature sensor of
the hot water tank
Input for temperature sensor of the
domestic hot water tank
2 × min.
0.5 mm²
17 to 18
Ext. control signal
Input for the external control signal
These two terminals are bridged at the
time of dispatch. Connection: 1-pin (min.
3 mm contact distance)
2 × min.
0.5 mm²
19 to 21
Solar 3-way
valve
Output for actuation of the solar 3-way
valve
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 PCB CZ-NS1P, CZ-NS2P
or CZ-NS3P.
2 × min.
0.5 mm²
SG Ready Control
Dry contact with two inputs (Vcc-Bit1 and Vcc-Bit2). The following settings are possible:
Operating state
SG-Ready-Signal
Vcc-Bit1 Vcc-Bit2
1
Heat Pump Lock: Heat pump and E-heating element are switched off.
1
0
2 Automatic operation Heat pump runs in normal mode
0
0
3 Increased operating: Power setting 1 (in %) for heating and domestic water
0
1
4 Maximum operation: Power setting 2 (in %) for heating and domestic water
1
1
The function must be enabled through the operating unit of the heat pump. Moreover, especially the power
settings 1 and 2 should be configured via the operating unit.
Power
control
Limiting the operating current according to the current power requirement through a 0--10 Volt input signal. For
safety reasons, a minimum operating current is applied for every device. For the change between two power
stages, there is a switching hysteresis of 0.2 V (see table). The voltage values are only taken into consideration
to the first decimal place and not rounded. The valid assignments between input signal and power stage are as
follows:
Ana-
logue
input (V)
Power (%)
Ana-
logue
input (V)
Power (%)
Ana-
logue
input (V)
Power (%)
0.0
Not active
0.1 – 0.6
3.9 – 4.1
40
7.4 – 7.6
75
0.7
10
Not
active
4.2
45
40
7.7
80
75
0.8
4.3
7.8
0.9 – 1.1
10
4.4 – 4.6
45
7.9 – 8.1
80
1.2
15
10
4.7
50
45
8.2
85
80
1.3
4.8
8.3
1.4 – 1.6
15
4.9 – 5.1
50
8.4 – 8.6
85
1.7
20
15
5.2
55
50
8.7
90
85
1.8
5.3
8.8
1.9 – 2.1
20
5.4 – 5.6
55
8.9 – 9.1
90
2.2
25
20
5.7
60
55
9.2
95
90
2.3
5.8
9.3
2.4 – 2.6
25
5.9 – 6.1
60
9.4 – 9.6
95
2.7
30
25
6.2
65
60
9.7
100
95
2.8
6.3
9.8
2.9 – 31
30
6.4 – 6.6
65
9.9
100
3.2
35
30
6.7
70
65
3.3
6.8
3.4 – 3.6
35
6.9 – 7.1
70
3.7
40
35
7.2
75
70
3.8
7.3
Heating/ Cooling Switch
Dry contact for the switching between heating (contact open) and cooling (contact closed). The function must
be enabled and configured via the operating unit of the heat pump.
Summary of Contents for Aquarea B1
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