Johnson Controls A28AK-2 Temperature Control Refrigerant making it a staple in

making it a staple in various vintage and modern HVAC control applications

Effective valve insert mounting is essential to prevent air ingress and leaks

This RVW61 model features a 1" Female NPT inlet and an expanded 1 1/4" Female NPT outlet

Always verify the insertion depth and nut length (standard vs

7 microamps)

Johnson Controls A28AK-2 Temperature Control Refrigerant making it a staple inJohnson Controls A28AK 2 Temperature Control, Two Stage, 120 208 240 277 Vac, Flange Mounted, Two SPDT Switches, 60 130 Degree Setpoint Range, 2 Degree Differential Each Stage and 3 Degree Differential Between Stages, Knob Range Adjuster