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Electrical installation of the heat pump
Legend for fig. 4.2 and fig. 4.3 on p. 8
A1
Utility block bridge: Must be inserted if no utility blocking
contactor is present (open contact = utility block).
A2
Block bridge: Must be removed when the input is in use
(input open = HP blocked).
A-R2 Return flow sensor bridge:
- must be removed when a differential pressureless
manifold is used.
- must be moved when a differential pressureless manifold
and a "heating circuit reversing valve" are used. New
terminal connections: X3/1 and X3/2
B2*
Low pressure brine controller
B3*
Hot water thermostat
B4*
Swimming pool water thermostat
F1
Control fuse for 24V AC 5x20 / 1.25AT
F2
Load fuse for plug-in terminals J12, J13
and J21 5x20 / 4.0AT
F3
Load fuse for plug-in terminals J15 to J18
and J22 5x20 / 4.0AT
H5* Remote fault indicator lamp
J1
Voltage supply N1
J2-3 Analogue inputs
J4
Analogue outputs
Remote fault indicator, swimming pool circulating pump
J5–8 Digital inputs
J10
Remote control connection
J11
Unused
J12
–J18 230V AC outputs for controlling the system components
J19
Digital inputs
J20
Analogue outputs; Analogue inputs; Digital inputs
J21
–22 Digital outputs
J23
Bus connection to pCOe modules
J24
Voltage supply for components
K20* Contactor for 2nd heat generator E10
K21* Contactor for electric immersion heater hot water E9
K22* Utility blocking contactor
K23* Auxiliary relay for disable contactor
M13* Heat circulating pump
M15* Heat circulating pump for heating circuit 2 / 3
M16* Auxiliary circulating pump
M18* Hot water circulating pump
M19* Swimming pool water circulating pump
M21* Mixer for main circuit or heating circuit 3
M22* Mixer for heating circuit 2
N1
Control unit
N14 Control panel
N20 Thermal energy meter
R1* External sensor
R2.1 Return flow sensor in dual differential pressureless
manifold
R3* Hot water sensor
R5* Sensor for heating circuit 2
R13* Sensor for heating circuit 3 / renewable sensor
T1
Safety transformer 230/24V AC
X1
Terminal strip - infeed
X2
Terminal strip, voltage = 230V AC
X3
Terminal strip, extra-low voltage < 25V AC
X11 Module connection plug
X12 Plug for controller connecting cable - heat pump 230V AC
X13.1Plug for controller connecting cable - heat pump < 25V AC
X13.2Plug for controller connecting cable - heat pump < 25V AC
*
Components must be supplied by the customer
____ Wired ready for use
- - - - To be connected by the customer as required
ATTENTION!
Plug-in terminals J1 to J11, J20 and J23, and terminal strip X3 of heating
controller N1, are connected to an extra-low voltage supply.
A higher voltage must on no account be connected here.
4
EN-7
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