4
Fig. 1
1
5
4
3
7
2
6
Legende:
1 Manothermomètre chaudière
2 Thermomètre ballon
3 Aquastat réglage chaudière
4 Aquastat réglage sanitaire
5 Interrupteur été/hiver
6 Aquastat de sécurité
7 Emplacement pour horloge (facultatif)
1.02 Operative principle
Summer/Winter switch on the «WINTER» setting.
When the switch has been set to the «Winter» position, the appliance is able to produce hot water for
sanitary and heating purposes, with priority to the sanitary circuit. The burner will ignite, the plant
circulator will remain at a standstill while that of the heater will allow water to circulate between the
boiler and the heater itself. Once the water in the heater reaches the temperature value preset by the
thermostat of this latter, the heater circulator stops and that of the heating system will start operating.
When the room temperature has reached the value set on the ambient thermostat, the burner and
circulator stop until heat is again required by the heating system or heater.
If the heater becomes cooled during the heating phase following use of sanitary water, the plant
circulator will immediately stop and thet of the heater will start operating until the temperature set on
the thermostat of this latter has been reached.
1. TECHNICAL INFORMATIONS
1.01 Introduction
GNK1 boiler is a new heating generator with high efficiency, for central heating system as well sanitary
hot water production suitable for burners using oil or gas. The boiler body is built by cast iron sections
joined togheter by mean of biconical nipples and tie rods. Sections fins are especially developped to
achieve the best efficiency fuel consumption. The heater is the quick accumulating type made of
vitreous enamelled steel, able to withstand the onset of rust for a very long time. The boiler body
insulation is provided by mineral high density fibers that minimizes the body heat lost.
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