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INSTRUCTIONS— GAS AIR HEATER -
MINIGAZ Eco
MH Eco, MC Eco, MV Eco– NT09004I-GB – 29/11/2017
4-3 Pilot wire concept
Order transmitted to the gas air heater
Wave shape sent by the temperature regulator
No wave
Stop
Positive half-wave
Ventilation
Nagative half-wave
Heating
Full wave*
Reset
* The reset order is a temporary impulsion and must not be permanent.
4-4 Remote faulty signal (in option)
The remote faulty signal kit (code 3510232) consists of replacing the 4-wire supply cable by a 5-wire cable.
The fifth wire (grey) is the failure report.
When the air blower is in failure it sends a 230V voltage signal that may be used to switch on a lamp or a relay.
Phase (Marron)
Neutre (Bleu)
Terre (Vert / jaune)
Fil pilote (Noir)
Report de défaut (gris)
Remote faulty signal kit - Code 3510232
Caution! The air blowers cannot be piloted by a standard thermostat (with relay). Only the specific “pilot wire”
thermostats supplied by Solaronics can pilot the air blowers.
The goal of the pilot wire is to limit the number of wires to connect.
The same pilot wire allows to transmit an order:
Of ventilation
Of heating
Of reset
The concept of air blower piloting is described here below
Pilot wire concept scheme
Phase / brown
Neutral / blue
Earth / green & yellow
Pilot / Black
Faulty signal (in option)