Section 4 – Installation
Fig. 4.8 Main Connector PCB
External Sensors PCB
Key to connections :
L2
Connection to 4 internal temperature
sensors
X1 block 1
to 7
External 0 – 10V output Humidistat
sensors.
(Model 180V - Only 1, 2 and 3 available)
L3
External Volt free smoke detector
input
X1 block
CO2 sensor
External 0 – 10V output CO2 sensor
L6
Connection point to internal humidity
sensor
X2 block
AQS 1
External 0 – 10V output AQS 1 sensor
L7
Connection point to External sensors
PCB
X2 block
Smoke
External Volt free smoke detector input *
L16 Connection point to Main Logic PCB
X2 block
Volt free 1
External Volt free configurable input 1
L17 External Flue Detection 1 : Volt free
input
X2 block
Volt free 2
External Volt free configurable input 2
L17 External Flue Detection 2 : Volt free
input
X3 block
Sensor 2
Internal 0 – 10V output AQS 2 sensor.
(When fitted)
* Note : Do not use this input for Smoke Detection if a smoke detector device is already connected to L3 on
the Main Connector PCB.
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