Crown Boiler MWC116ELT Manual De Usuario

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I Product Description
The MWC Series are gas fi red condensing boilers designed for use in forced hot water heating systems 
requiring supply water temperatures of 176F or less and return water temperatures greater than 86F. The 
primary heat exchanger is a copper water tube design. Additional heat is extracted from the fl ue gas in a 
stainless steel secondary heat exchanger located down stream of the inducer. These boilers include a built in 
circulator, expansion tank, and automatic air vent. In addition, “combi” models include a plate exchanger for 
domestic hot water (DHW) generation. All MWC Series boilers are designed for installation on a wall and may 
be vented vertically or horizontally with combustion air supplied from outdoors. 
Key
Component
1
Primary Heat Exchanger
2
Secondary Heat Exchanger
3
Inducer
4
Burner
5
Electrodes and Flame Rod
6
Circulator
7
Automatic Air Vent
8
Condensate Trap
9
Control Box
10
Differential Boiler Water Pressure Switch
11
Ignition module/Gas Valve
12
Air Pressure Switch
13
Flue Gas Temperature Limit
14
Supply Temperature Limit
*
Expansion Tank
*
Plate Heat Exchanger (Combi Only)
*
3-Way Diverting Valve (Combi Only)
*
Supply Temperature Sensor 
*
DHW Temperature Sensor (Combi Only)
*
DHW Flow Switch (Combi Only)
   
* Not visible