Allanson 444-BT636 Transformer 30067439-890 It should be used in

It should be used in series with a primary temperature controller to prevent thermal runaway

Air Venting Capability: Automatically bleeds air and non-condensable gases to prevent system air-binding and localized cold spots

This actuator is specifically designed for Johnson Controls VG5000 and VG4000 series forged brass zone valves

Extended Thermal Range: Covers 40-240F temperature monitoring

though this varies by ambient temperature and specific meter calibration

Allanson 444-BT636 Transformer 30067439-890 It should be used inThe Allanson 444 BT636 is a professional grade ferromagnetic service replacement transformer engineered for demanding oil burner applications. Operating on a 240Vac supply voltage, this unit delivers a consistent 10,000Vac secondary voltage at 23mA, utilizing a mid point ground configuration. As a veteran in the field, you know the value of the "Universal" designation; this model features six position adaptability and includes a universal base plate