1.2Technical safety equipment

1.2.1 Gas control valve

The water heater is equipped with a gas control wich regulates the flow of gas to the burner. The gas block is equipped with a safety valve, gas valve and burner control (on a standard natural gas setting). To ensure improved ignition the gas control valve opening mechanism is fitted with a delay (softlite).

The gas control block is suitable for gasses from the first, second and third gas family. The maximum inlet pressure is 60 mbar.

Figur 2 - Top view of the heater

A ) Hot water outlet

B) Cold water inlet

1)Electrical connection

2)ON/OFF switch

3)Ignition controller reset button

4)Control thermostat knob

5)Safety thermostat reset button

The automatic incandescent ignition (hot surface) ensures that the burner ignites as soon as there is a demand for heat.

1.2.2Control panel

Temperature control for the water heater is housed in the control panel (See figur 2). For safety purposes, heaters are always fitted with two thermostats: a control thermostat is adjustable between 40 °C and 80 °C and a safety thermostat 90 °C. The control panel is fitted with an ON/OFF switch (I/0). At setting ”I”, the gas control is activated on the basis of heat demand from the control thermostat. At setting ”0” the heater is switched off.

6

Page 6
Image 6
A.O. Smith BTI 85 G, BTI 100 G manual Technical safety equipment, Gas control valve, Control panel