Helios AIR1 XH 1000-8500 Notice De Montage Et D'entretien page 156

Installation and Operating Instructions
EN
Central ventilation units AIR1 XH
Alarm
Communication error frequency
SAF
Communication error frequency
EAF
Warning frequency converter
SAF
Warning frequency converter
EAF
Communication errors expansion uits
Communication error expansion
unit 1
Communication error expansion
unit 3
Communication error expansion
unit 4
Communication error expansion
unit 5
Diverse
Fire alarm
External operating switch
Restart blocked after power-on
Internal battery failure
DX External unit
Rotation sentinel exchanger
Priority Stop Check/Solution
A YES • Supply air fan not receiving Modbus signal
• Check wiring of power supply
• Check Modbus wiring from fan to controller
A YES • Exhaust air fan not receiving Modbus signal
• Check wiring of power supply
• Check Modbus wiring from fan to controller
C No • Cause dependent on motor type. Contact service
team
C No • Cause dependent on motor type. Contact service
team
C No • No communication with controller E15 of DX cooler
A YES • Communication with pressure sensor supply air fan inter-
rupted
• Check Modbus wiring from pressure sensor to controller
A Yes • Communication with pressure sensor extract air fan
interrupted
• Check Modbus wiring from pressure sensor to controller
A YES • Communication with pressure sensor constant pressure
interrupted
• Check Modbus wiring from pressure sensor to controller
A Yes If the alarm is unwarranted:
• Check connection to terminal strip (on-site contact)
• Can be programmed as NC or NO
• If the fire alarm has been triggered by the duct smoke
sensor RMK, it must be reset again. This is achieved by
disconnecting the AIR1 unit from the mains power supply
using the main switch.
C Yes • External operating switch is activated
• Check wiring
B Yes • Fan not running despite voltage recovery
A No • Replace battery CR2032 in controller
B No • Contact support of air conditioning system
B YES • Communication with rotary exchanger interrupted
• Check rotary heat exchanger
• Check rotation sentinel position and wiring
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