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3.2 Gas connection
The gas installation shall be done by a qualified worker. The rules of gas installation shall be
respected.
A manual isolation gas valve in the supply line must be placed within reach of the heater, and all
gas lines must be mounted without any mechanical tension. The installation of a gas filter and the
purge of gas pipes before the first start-up are strongly recommended.
The sealing of the gas network have to be checked before the first start of the installation according
to the rules in force.
The dynamic gas pressure upstream the solenoid valve shall be at least 17 mbar for G20 and
20 mbar for G25. This dynamic pressure cannot be greater than 30 mbar.
For G31, it shall be less than 37 mbar.
It is eventually possible to change the gaz type (natural gas/propane).
In this case, please contact your installer.
These appliances were design to operate with natural gas G20 or G25.
When operating with G25, the heat input will be lower than when operating in G20 (see the
technical specifications in page 5).
It is forbidden to turn the setting screws which are sealed by the manufacturer.
3.3 Electrical connection
3.3.1 Electric supply 230 V
The electrical installation shall satisfy the local/national rules in force. Be sure that the main supply
is 230VAC with earth and a R.S.D (Residual Current Device) with a sensibility of 30 mA
upstream the heater for the protection of people and installation. The polarity phase/neutral shall be
absolutely respected.
See the electrical diagram, pages 24 and 25.
3.3.2 Electrical supply interruption
Never interrupt the power supply of the device accidentally. It could drive to an overheating of the
heat exchanger and to the safety state of the overheated device.
Be careful to the electric breaks of the network, it is possible that the temperature of the appliance
is going up (overheating)
Never turn off the power while the unit is warming up!
3.3.3 Room Thermostat
The warm air heaters AM can be driven only with the MULTITHERM S or C thermostat.
They are not operating with simple ON/OFF thermostat.
MULTITHERM thermostats type :
MULTITHERM S (Ref SBM 5760001) ; modulating numerical thermostat
without clock able to regulate from 1 to 8 appliances AMC 12 to 58 or 1 to 4 appliances
AMC 78 to 116.
MULTITHERM S WITH CONTACT (Ref SBM 5760004); modulating numerical thermostat
without clock, with terminal for external contact, able to regulate from 1 to 8 appliances
AMC 12 to 58 or 1 to 4 appliances AMC 78 to 116.
MULTITHERM C (Ref SBM 5760001) ; modulating numerical thermostat with clock able to
regulate from 1 to 8 appliances AMC 12 to 58 or 1 to 4 appliances AMC 78 to 116.
MULTITHERM C WITH CONTACT (Ref SBM 5760005) ; modulating numerical thermostat with
clock, with terminal for external contact, able to regulate from 1 to 8 appliances AMC 12 to 58
or 1 to 4 appliances AMC 78 to 116.
9
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