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Product Description
SG Ready Control
Dry contact with two inputs (Vcc-Bit1 and Vcc-Bit2). The following settings are possible:
Operating state
1 Heat Pump Lock: Heat pump and E-heating element are switched off.
2 Automatic operation Heat pump runs in normal mode
3 Increased operating: Power setting 1 (in %) for heating and domestic water
4 Maximum operation: Power setting 2 (in %) for heating and domestic water
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
Power (%)
input (V)
0.0
Not active
0.1 – 0.6
0.7
Not
10
active
0.8
0.9 – 1.1
10
1.2
15
10
1.3
1.4 – 1.6
15
1.7
20
15
1.8
1.9 – 2.1
20
2.2
25
20
2.3
2.4 – 2.6
25
2.7
30
25
2.8
2.9 – 31
30
3.2
35
30
3.3
3.4 – 3.6
35
3.7
40
35
3.8
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.
58
Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
SG-Ready-Signal
Vcc-Bit1
1
0
0
1
Ana-
Ana-
logue
Power (%)
logue
Power (%)
input (V)
input (V)
3.9 – 4.1
40
7.4 – 7.6
75
4.2
7.7
45
40
80
75
4.3
7.8
4.4 – 4.6
45
7.9 – 8.1
80
4.7
8.2
50
45
85
80
4.8
8.3
4.9 – 5.1
50
8.4 – 8.6
85
5.2
8.7
55
50
90
85
5.3
8.8
5.4 – 5.6
55
8.9 – 9.1
90
5.7
9.2
60
55
95
90
5.8
9.3
5.9 – 6.1
60
9.4 – 9.6
95
6.2
9.7
65
60
100
95
6.3
9.8
6.4 – 6.6
65
9.9
100
6.7
70
65
6.8
6.9 – 7.1
70
7.2
75
70
7.3
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.
Vcc-Bit2
4.7.2.1 External interfaces for F- and G-Generation models
0
The overview of external interfaces is valid for the following models:
0
1
Split systems
1
WH-SHF09F3E5 + WH-UH09FE5
WH-SHF12F6E5 + WH-UH12FE5
WH-SHF09F3E8 + WH-UH09FE8
WH-SHF12F9E8 + WH-UH12FE8
Overview of the External Interfaces
Terminals
1 to 3
4 to 6
Earth to 8
9 to 12
13 to 14
15 to 16
17 to 18
19 to 21
22 to 23
Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
Compact systems
WH-MHF09G3E5'
WH-MHF12G6E5
WH-MHF09G3E8
WH-MHF12G9E8
1
2
3
4
5
6
7
8
9 10 11 12
13 14 15 16 17 18
2-way valve
3-way valve
E-Heating
Room
Temperature
element hot
thermostat
sensor for hot
water tank
water tank
Overload
protection for hot
water tank
Connection
Function
Condition
2-way valve
Output for actuation of the 2-way valve
(e.g. for floor heating, cooling)
3-way valve
Output for actuation of the 3-way valve
(e.g. for heating, domestic hot water tank)
E-Heating element hot
Output for on/off switch of the E-heating
The maximum power output of the
water tank
element hot water tank
E-heating element hot water tank should
be maximum 3 kW.
Room thermostat
Input for room thermostat signals
Overload protection
Input for overload protection of the
The terminals 13/14 must be used if
for domestic hot water
domestic hot water tank
overload protection is not used for the hot
tank
water tank.
Temperature sensor of
Input for temperature sensor of the
the hot water tank
domestic hot water tank
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)
Solar 3-way
Output for actuation of the solar 3-way
valve
valve
Solar pump station
Input of the ON signal of solar pump 2
Use additional PCB CZ-NS1P, CZ-NS2P
(230 V AC)
or CZ-NS3P.
Product Description
19 20 21
22 23
Solar 3-way
Solar pump
valve
station
External control
signal
Cable cross
section
3 × min.
0.5 mm²
3 × min.
0.5 mm²
3 × min.
1.5 mm²
4, or 3 × min.
0.5 mm²
2 × min.
0.5 mm²
2 × min.
0.5 mm²
2 × min.
0.5 mm²
3 × min.
0.5 mm²
2 × min.
0.5 mm²
59
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