24
Figure 3-10 Main components for models 750 and 1000
3 - MAIN COMPONENTS
35 - Automatic air vent (not present on IW water heater version)
36 - Water supply connection
37 - Water return connection
38 - Drain valves
39 - Header temperature sensor
41 - Safety Relief valve (P-T relief valve on IW water heater)
42 - Pressure and temperature gauge
43 - Headers (For IW water heaters they are always made in
stainless steel. For IB boiler they can optionally made of carbon
steel or stainless steel)
38
35
37
39
43
36
41
41
41
41
42
42
42
42
020009.01.017
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