Kodiak Controls EA14B Gauge The Johnson Controls T-4000-3139 is

The Johnson Controls T-4000-3139 is a professional-grade horizontal pneumatic thermostat cover designed specifically for the T-4000 Series room thermostats

Is this compatible with newer electronic ignition models

Technicians should use a manometer to measure the actual vacuum at the switch port

the VMD4B-C24A features high-conductivity contacts to minimize voltage drop and heat generation

Does the 1-2 PSI spring require a specific mounting position

Kodiak Controls EA14B Gauge The Johnson Controls T-4000-3139 isThe Kodiak Controls EA14B Gauge is a professional grade 4 1 2 inch dial pressure gauge engineered for accuracy and durability in demanding commercial HVAC and plumbing environments. This contractor pressure gauge features a 0 60 PSI scale with a high visibility white dial and bold black numerals, ensuring legible readings even in low light mechanical rooms. Built with a corrosion resistant stainless steel case and a 1 4 inch NPT lower mount, the EA14B