26
12.4.6 Legend
APPENDIX: 12.4 WIRING DIAGRAM
A1
Wire jumper, must be removed upon installation of a utility company disable contactor
A2
Wire jumper, must be removed if 2nd disable input is used
A3
Wire jumper, must be removed if a motor protection contact for primary pump
is used
A4
Wire jumper, must be removed if a motor protection contact for the compressor is used
Open wire jumpers or contacts mean: lock-out or malfunction
B2*
Pressostat low pressure, brine
B3*
Thermostat, hot water
B4*
Thermostat, swimming pool water
C1
Operating capacitor, compressor
E9*
Electr. immersion heater, hot water
E10*
Suppl. heat source (boiler or electr. heating element)
F2
Load fuse for N1 relay outputs across J13 4.0 A slow
F3
Load fuse for N1 relay outputs across J15 to J18 at N1 and -J12 at N2 4.0 A slow
F4
Pressostat high pressure
F5
Pressostat low pressure
J1...J18
Terminal connector at N1 (standard controller)
J1...J15
Terminal connector at N2 (cooling controller)
K1
Contactor, compressor
K5
Contactor, primary pump (M11)
K20*
Contactor for E10
K21*
Contactor for E9
K22*
Utility company disable contactor
K23*
SPR auxiliary relay
M1
Compressor 1
M11*
Primary pump
M13*
Heating circulating pump, primary circuit
M14*
Heating circulating pump - heating circuit 1
M15*
Heating circulating pump - heating circuit 2
M16*
Auxiliary circulating pump
M18*
Hot water circulating pump
M19*
Swimming pool water circulating pump
M21*
Mixer, main circuit
M22*
Mixer, heating circuit 2
N1
Standard controller (pCO2)
N2
Cooling controller (pCO1)
N3/N4*
Room units for dew point control
N5
Dew point monitor
N7
Soft start control
N9*
Room thermostat
N10*
Remote control station
R1
External sensor
R2
Return sensor
R3
Hot water sensor (as an alternative to the hot water thermostat)
R5
Sensor for heating circuit 2
R6
Freeze protection sensor (brine)
R7
Coding resistor 3k9
R8
Frost protection sensor, cooling
R9
Frost protection sensor, heating
R10*
Humidity sensors of N5
T1
Safety isolating transformer 230/24V AC-50V A
X1
Terminal stripmains control L/N/PE-230V AC-50 Hz/fuses/N and PE-terminal block
X2
Terminal strip 24V AC-terminal block
X3
Terminal strip GND terminal block for sensors
X5
Terminal strip 0V AC terminal block
X6
Terminal strip power supply L/N/PE-230V AC-50 Hz
Y1
4-way reversing valve
Abbreviations:
EVS
Utility company disable input
SPR
Supplementary disable input
MA*
Mixer OPEN
MZ
Mixer CLOSED
* Components to be supplied by the customer