
10
1.6.1 NRV LR system - Typical External Diagram
In-line Burner
In-line Burner
In-line Burner
In-line Burner
End Vent
Burner
Fused Spur
Fused Spur
Fused Spur
Fused Spur
Fused Spur
End Vent
Module
End Vent
Module
In-line Burner
Fused Spur
End Vent
Module
End Vent
Burner
Fused
Spur
From ‘Power out’ on End Vent
Burner to In-line Burners
From ‘Power out’ on
End Vent Burner to
In-line Burners
To ‘Mains In’ on
End Vent Burner
To ‘Mains In’ on
End Vent Burner
End Vent
Burner
2nd Branch Zone 1
1st Branch Zone 1
1st Branch Zone 2
Isolator
Tail Pipe
0.75mm²
Screened
Cable
Sensor
Zone 2
SmartCom³ no.2
‘Slave’ (SC3-MZ)
230V 50Hz 13A
Mains Supply
0.75mm²
Screened
Cable
Sensor
Zone 1
Isolator
SmartCom³ no.1
‘Master’ (SC3-MZ)
Isolator
230V 50Hz 13A
Mains Supply
Local Relay
Unit / Inverter
Panel
* 4 core
Armoured Cable
Networking Cable
Screened pair Beldon
9841 or equiv
* IMPORTANT
For Inverter Panels only
(fan types B80/B160 & B300)
MAXIMUM length of cable between
Inverter and Fan is 5m.
IMPORTANT
Fan types B80/B160 & B300)
MOTOR MUST BE WIRED IN
DELTA.
Fused Spur
From ‘Power out’
on End Vent Burner
to In-line Burners
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