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Kränzle Safety Block with Pressure Switches | PN 9740596
The Kränzle Safety Block is an integrated control for the old style Therms (those without "-1"). The control includes the pump unloader, pressure relief valve, and flow & pressure switches to control burner function and 30-second shutdown. It is not used in the new Therms which have their unloaders integrated into the valve housing.
Please consult your owners manual to confirm compatibility with your Kränzle model.
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