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The unit acts as a bus for up to four tN2 thermostats
Always verify the part number against the unit’s data plate and conversion chart before installation
Does this include the hardware for cabinet mounting
Pneumatic Reliability: Minimal moving parts ensure long-term stability in mechanical environments without the need for electrical wiring
Hartland Controls 90340 Relay mario The unit acts as aThe Hartland Controls 90340 Relay is a heavy duty, field proven solution for switching fan motor loads and managing auxiliary circuits in residential and commercial HVAC systems. As a veteran grade DPDT 24V relay, this unit features a 24 VAC coil designed for seamless integration with standard 24V control loops. Engineered for reliability, the 90340 general purpose relay utilizes double pole, double throw switching to provide independent control of
