The 110000255 features a 24VAC coil and is configured as a 1 Form A (SPST-NO) relay

ensuring system safety

as well as legacy R-22 applications

Dual Voltage Versatility: Equipped with a multi-tap coil for 110-120/220-240Vac supply

the Series B includes an internal thermostatic air vent to handle air loads automatically

Kunkle Valve 0537-D01-AHM0125 Valve R-134A The 110000255 features a 24VACThe Kunkle 0537 D01 AHM0125 is a high capacity bronze safety relief valve designed specifically for low pressure hot water boilers, heat exchangers, and generators. This ASME Section IV certified valve features a 3 4" female NPT inlet and a 1" female NPT outlet, delivering a precise discharge at a 125 PSI set pressure. Engineering upgrades from the previous 0537 D01 HM0125 model ensure this unit meets the latest National Board certification standards