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Hello my name is Ryan Kliethermes with KE2 Therm Solutions. In this video I’ll cover the process for installing the KE2 Therm door switch on a walk-in.

One of the reasons we get questions on the door switch is because it is SO versatile. People just can’t believe they have the flexibility to mount the door switch in so many ways.

First lets get a close up look at the door switch.

The rounded, rectangle is the Contact Assembly. Within the aluminum housing is the reed switch, or sensor, if you prefer.

This half of the door switch must be mounted to the wall, and wired to the controller.

The L shaped bracket holds the magnet, which, when greater than 2” from the contact assembly will trigger the Digital Input, that the door is opened.

The magnet can positioned on the inside or outside of the bracket,

or slid forward or back in the slot, to guarantee good contact with the Contact Assembly. These holes, also provide flexibility when positioning the door switch.

Okay, so now let’s select a position on the door of the walk-in that is on the door opening side

it can be on the top, or side of the door.

But, remember, the wires on the door switch are 24 inches long, so if possible, you want to select a spot where the wires can reach the controller, without being extended.

You will also want to decide if you want the magnet on the inside, or the outside of the L-bracket.

In this example, we will use an inside mount, which is how the door switch ships from the factory.

Now, we just use two screws to hold it in place.

The next step is to install the Contact Assembly.

The contact assembly must be within 2 inches of the magnet, or the door switch will signal that the door is open, and trigger an alarm.

The connection between the Contact Assembly and the magnet can be either parallel or perpendicular.

To mount the Contact Assembly, use two more screws.

The next step is connecting the door switch to the controller.

On the KE2 Evap style controller, the pluggable connectors for the Digital inputs are on the left side when looking at the back of the controller.

Find the two position screw down terminal for Digital Input 1. Connect the two wires to the pluggable connector, orientation does not matter

On the KE2 Low Temp or KE2 Adaptive style controller, the screw down terminals for the Digital inputs are on the back of the display cover.

Choose one of the two available Auxiliary inputs. These inputs are on the right side when looking at the back of the display cover.

Connect the two wires to the screw down terminal, orientation does not matter

Okay, so the physical installation and connection of the door switch are in place.

Now you will need to configure the controller for use with a door switch. This can be done from the front panel or from the controller’s web page.

Video 40 explains how to configure the controller from the front panel, and Video 041 explains how to configure the controller from the webpage.

One more thing I want to mention, if you configure the controller from the webpage, you will also be able to setup alarm alert notifications. The alerts will be sent directly to the contact you select, via text or e-mail.

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