4 legend, Appendix: 12.4 wiring diagrams – Dimplex SI 75ZS User 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