CTRLMax Manual

P3 DHW
N G L
Master Prestige Boiler
Slave Prestige Boiler
Slave Prestige Boiler
CH
Main Control Board Back of Display Panel
Back of Display Panel
Heating Call
From Zone Panel
Outdoor Sensor
DHW Sensor
System Sensor
Cascade
Master
Cascade
Master
Cascade
Slave
Cascade
Slave
Main Control Board
4 5 6
1 2 3
X15
3 4 1 2
X16
123
X7
4 5 6
1 2 3
X15
3 4 1 2
X16
123
X7
FLAME
PUMP 4 PUMP 3
DHW PUMP CH PUMP
POWER SUPPLY
L G N L G N L G N L G N L G N L G N



CH2
Thermostat
CH1
Thermostat
System
Sensor
Outdoor
Sensor
ModbusDHW Sensor
or
aquastat
Modulation
Signal
6 5 4 3 2 1 4 3 2 1 2 1 23 1
- +
- +G
Outdoor Sensor
DHW Sensor
X5 X6 X4 X7
System Sensor
FLAME
PUMP 4 PUMP 3
DHW PUMP CH PUMP
POWER SUPPLY
L G N L G N L G N L G N L G N L G N



CH2
Thermostat
CH1
Thermostat
System
Sensor
Outdoor
Sensor
ModbusDHW Sensor
or
aquastat
Modulation
Signal
6 5 4 3 2 1 4 3 2 1 2 1 23 1
- +
- +G
X5 X6 X4 X7
FLAME
PUMP 4 PUMP 3
DHW PUMP CH PUMP
POWER SUPPLY
L G N L G N L G N L G N L G N L G N



CH2
Thermostat
CH1
Thermostat
System
Sensor
Outdoor
Sensor
ModbusDHW Sensor
or
aquastat
Modulation
Signal
6 5 4 3 2 1 4 3 2 1 2 1 23 1
- +
- +G
X5 X6 X4 X7
70
CHAPTER 8
Fig. 30 -Reverse Return Cascade Wiring
CHAPTER 8 - CASCADE
CTRLMax_w Instinct_UK version_222171_A01.indd 70 18/07/2019 18:38