Tjernlund 950-1040 Vent System Relay KitThe Tjernlund 950 1040 Vent System Relay Kit delivers reliable, plug and play control for GPAK J side wall vent systems. This Type Relay Kit is engineered to integrate seamlessly with your existing vent setup, offering versatile 24 115 Volt AC compatibility to match common electrical configurations. Designed to work specifically with GPAK J side wall vent systems, the kit ensures safe switching of vent motors or fans, with straightforward wiring and

it delivers reliable actuation from a 24 V AC power supply for compatibility with standard building controls

Humidity: 95% RH non-condensing at 50°C

With an overall length of 1-27/23 inch and a depth of 3/4 inch

makeup air

Enclosed disc face

Equip your heating system with a durable

Its compact form factor and trusted UL/CSA approvals make it a solid upgrade for heating control systems

Compatibility: Used on CAS-3

with a streamlined setup that minimizes installation effort

Precise flow regulation: Thermostatic expansion valve action delivers accurate superheat control for consistent cooling

Zone Valve Flare Fitting from Erie Controls

it delivers excellent corrosion resistance and long-lasting performance in demanding exhaust environments