TJERNLUND 64669 Universal Safety Interlock Control for Sidewall Power Venters, Draft Inducers and Combustion Air Fans

UNIVERSAL CONTROL FOR INTERLOCKING

The SU Control is a compact controller for wall-mounted fans, blowers and ventilators with power outputs up to 2.5 kW. The unit operates in conjunction with the Safety Switch Micro, to protect against unwanted start-ups and can be used for interlocking with control switch CM3N and CM3S. It is easy to install in new installations or retrofitted into an existing installation using the standard mounting kit (not included).

The 64669 Universal Safety Interlock Control for Sidewall Power Venters, Draft Inducers and Combustion Air Fans is a 110/127-Volt AC, 1 Pole, 3 Position Safety Switch with integral manual reset. The unit is designed to switch in the fan during door interlocking situations.

USIU 64669 is a universal safety interlock control for sidewall power venters, draft inducer and combustion air fans, with built-in magnet breaker.

The TJERNLUND 64669 Universal Safety Interlock Control for Sidewall Power Venters, Draft Inducers and Combustion Air Fans is a safety interlock switch that has been designed mainly for use in applications such as solar thermal, heat pumps, electric boilers. With both mechanical and electrical interlocking contacts, this control can be used as safety connection on a variety of heating equipment.

TJERNLUND 64669 Universal Safety Interlock Control for Sidewall Power Venters, Draft Inducers and Combustion Air Fans

Universal Safety Interlock Control, the "Universal" model, comes with a separate power switch and mechanical linkage for each device. This allows for the control of each device regardless of the position of other devices. The SC1 includes one relay and one coil for interlocking up to (3) devices.

TJERNLUND safety interlock controls are designed for application to sidewall power venters, draft inducer fans and combustion air fans. The control provides flame sensing control over sidewall power vent and draft inducer blowers to limit gas consumption and safeguard against explosion hazard. This universal control is interchangeable for all products from TJERNLUND that are listed in the compatibility chart below. The control is provided with a test switch (R-3093-#140) and a lock pin (R-3093-#139) for optional use in the fan circuit.