Johnson Controls T-4000-2139 Thermostat CoverJohnson Controls T 4000 2139 Thermostat Cover provides a clean, beige plastic enclosure for compatible thermostats. Designed for horizontal mounting, this durable plastic cover protects the thermostat while maintaining a tidy, professional look. The beige finish blends easily with most interiors, offering a discreet yet functional upgrade for any space. This thermostat cover is specifically used with the T 4002 model family, ensuring reliable

Indoor blower motor designed for durability in HVAC environments

and RE350S models

on pressure fall to ensure fail-safe operation in demanding equipment

the M9220-AGA-3 ensures accurate damper positioning under load changes and over time

this board is a straightforward replacement part that helps restore frost cycle control in Heil Quaker/ICP systems

ensuring seamless compatibility with existing control panels and wiring

and 300 pump families

ensuring dependable service in demanding environments

Its compact 2" L x 1-1/8" W footprint makes it easy to retrofit into tight control panels without sacrificing performance

Ideal for residential applications

Operating range 8-13 PSI (RA) with a built-in positioner provides a 10 PSI range for fine-tuned control

This capacitor is a straightforward replacement that restores peak performance