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Pentair 42001-0061S Air Flow Switch
Pentair 42001-0061S Air Flow Switch
 
Our Price: $155.02

Quantity in Stock:2

Product Code: 42001-0061S
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Description Technical Specs
 
Pentair 42001-0061S Air Flow Switch
The Pentair Master temp air flow switch (AFS) senses the pressure drop across the air metering orifice. ...

Used on the following models: MSTRTMP175LP MSTRTMP175NA MSTRTMP200LP MSTRTMP200NA MSTRTMP250LP MSTRTMP250NA Sta-Rite Max-E-Therm 400 LP Sta-Rite Max-E-Therm 400 NA SR400LP SR400NA Sta-Rite Max-E-Therm 200 LP Sta-Rite Max-E-Therm 200 NA Sta-Rite Max-E-Therm 333 LP Sta-Rite Max-E-Therm 333 NA Pentair MasterTemp 400 LP Pentair MasterTemp 400 NA SR200LP SR200NA SR333LP SR333NA Pentair MasterTemp 200 LP Pentair MasterTemp 200 NA Pentair MasterTemp 250 LP Pentair MasterTemp 250 NA Pentair MasterTemp 300 LP Pentair MasterTemp 300 NA MSTRTMP300LP MSTRTMP300NA MSTRTMP400LP MSTRTMP400NA Pentair MasterTemp 175 LP Pentair MasterTemp 175 NA
Troubleshooting
The Pentair Master temp air flow switch (AFS) senses the pressure drop across the air metering orifice. As soon as there is sufficient air flow, the AFS closes, closing the circuit to the hot surface igniter (HSI), which ignites the fuel mixture. On a call for heat, the blower and HSI are energized. In about 20 seconds, the gas valve opens and ignition occurs. The HSI then switches to a sensing mode and monitors the flame.
The air flow switch, is a safety device used to insure that the
combustion air blower (fan) is operating and has been designed to monitor the
vacuum (negative) pressure within the blower housing. The air flow switch is
factory set and is connected upstream of the ignition module. The ignition module
does not operate unless the air pressure switch and all safety switches are
closed.

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