Can I use this for both 115V and 230V applications

this control simplifies field service by maintaining the original footprint and electrical terminal configurations

this model is specifically tested to meet UL555S standards

Simplified Field Service: Standardized terminal markings allow for faster installation and testing during maintenance calls

it ensures deep penetration into the plenum for accurate air temperature sensing

McDonnell & Miller 157S-RLS-MD Control R-410A Can I use this forThe McDonnell & Miller 157S RLS MD (Part Number 177251) is a high performance mechanical combination low water cut off and pump controller designed for commercial and industrial steam boilers. Engineered for high pressure applications up to 150 psi, this unit features a maximum differential operation that effectively prevents nuisance burner shutdowns in systems experiencing rapid water level fluctuations. Its integral water column design simplifies