Honeywell 190821 – Replacemet Bulb For W950 $31.91

Description

Genuine Honeywell Model #190821/U Replacemet Bulb With Leadwires For W973 terminals. Simulates the HEAT and COOL ramp signal of a T7067 Dual Set Point Thermostat  & the economizer low limit function. Consists of 2 potentiometers and a resistor assembly mounted in a test box.  Provides a heat/cool ramp signal from less than 2 Vdc (min) to 16.6 Vdc (max). Provides an Economizer low limit signal from 4.0 Vdc (equivalent to 45 F (7 C) @ the C7046 Discharge Sensor) to 4.5 Vdc (equivalent to 69 F (21 C). Four test leadwires have color-coded bands with correspondingW973 terminal numbers. Part Of Environmental Controls Accessories