Dimplex SI 75ZS - Manual (Page 22)

12.4.4 Legend
APPENDIX: 12.4 WIRING DIAGRAMS
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A1 Wire jumper across J5-ID3>X2 must be inserted if no utility company disable contactor is used
A2 Wire jumper, must be removed if 2nd disable input is used
A7 Wire jumper in SI 50/-70, in place of F18/F19
B2* Pressostat low pressure, brine
B3* Thermostat, hot water (as an alternative to hot water sensor)
B4* Thermostat, swimming pool water
E9* Electr. immersion heater, hot water
E10* Suppl. heating system (boiler or electr. heating element)
F2 Load fuse for N1 relay outputs across J12 and J13 4.0 A slow-acting
F3 Load fuse for N1 relay outputs across J15 to J18 4.0 A slow-acting
F4 Pressostat, high pressure
F5 Pressostat, low pressure
H5* Lamp, remote fault indicator
J1...J18 Terminal connector at N1
K1 Contactor, compressor 1
K3 Contactor, compressor 2
K11* Electron. relay for remote fault indicator (relay module)
K12* Electron. relay for swimming pool water circulating pump (relay module)
K20* Contactor, suppl. heating system (boiler or electr. heating element)
K21* Contactor, electr. immersion heater for hot water
K22* Utility company disable contactor
K23* SPR auxiliary contactor
M 1 Compressor 1
M 3 Compressor 2
M11* Primary pump
M13* Heating circulating pump
M15* Heating circulating pump for heating circuit 2
M16* Suppl. circulating pump
M18* Hot water circulating pump
M19* Swimming pool circulating pump
M21* Mixer, principal circuit
M22* Mixer, heating circuit 2
N1 Heat pump controller
N7 Starting current limiter, compr. 1
N8 Starting current limiter, compr. 2
N10* Remote control station
N11* Relay module
R1 External sensor
R2 Return sensor
R3* Hot water sensor (as an alternative to hot water thermostat)
R5* Sensor for heating circuit 2
R6 Freeze protection sensor
R7 Coding resistor 8k
R9 Flow sensor
T 1 Safety isolating transformer 230/24 VAC-28VA
X1 Terminal strip mains control L/N/PE-230VAC-50Hz/fuses/N and PE-terminal block
X2 Terminal strip 24 VAC-terminal block
X3 Terminal strip GND terminal block for sensors R1/-2 and -3 at J2 and R5 and -6 at J6
X5 Terminal strip power supply 3L/PE-400VAC-50 Hz
Abbreviations:
EVS Utility company disable input
SPR Supplementary disable input
M A Mixer OPEN
MZ Mixer CLOSED
* Components to be supplied by the customer, available as accessories