Lennox eNeRGy Series Installation, Operating And Maintenance page 52

GAS BURNER
Connections
GAS BURNER
• 1 or 2 gas Supply modules
• Single-phase power supply 230Vac with neutral
• ON/OFF: ok signal to ALL the PCH connected; safety devices must be
connected in series to this (fire dampers, fan control, temperature alarms...)
in order to protect the system by stopping the burner. 230V supplied.
Priority over the power setting signals.
• ALARM: to remote the lock signal; Normally Open (possible Normally Closed)
3 possible power setting modes:
• NTC1 temperature probe (parameter d0=2). Only with 1 PCH; "delivery fixed
point" operation; the burner is switched on and off through the ON/OFF.
• 0-10Vdc (d0=5, default factory setting)
• Modbus (d0=7): modulation board provided with a serial RS485 which may be
used to control the burner start-up, the modulation, the alarms, the reset.
Installation
Gas connection
eNeRGy-IOM-2020.12-EN
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