The Honeywell 944-2GY is a recessed contact with wire leads and a 3/8” diameter contact body. Unlike the Honeywell 944T recessed contact, the 944-2GY uses wire leads not terminal screws to connect the contact to an open wired zone on your alarm control panel. While leads are typically a little harder to connect than terminal screws, as you need to splice, solder and tape the connection, the 944-2GY is ideal when you need a normally open contact.
Most wired door and window contacts are normally closed devices. However, some applications require a normally open device instead. The Honeywell 944-2GY recessed contact is actually a Form C, SPDT, normally open or normally closed device. Therefore, you can use the 944-2GY in any application. The recessed contact has a 5’ zip cord with (3) different wire leads. You will use the normally open lead and the common lead when wiring the 944-2GY as a normally open device and you will use the normally closed lead and the common lead when wiring as a normally closed device. No matter which way you wire it, the recessed contact uses an internal reed switch to determine if the device is open or closed. The reed switch contact has a rating of 100mA at 28VDC.
To install your Honeywell 944-2GY recessed contact, you will need to drill a hole in your door or window and a corresponding hole in your door or window frame. You will also need to run a (2) conductor alarm wire from your alarm control panel to the desired door or window. The magnet should be pressed into the 3/8” diameter hole that you drilled into your door or window and the contact should be connected to the contact loop wire and then pressed into the 3/8” diameter hole that you drilled into the frame. Before drilling your holes, please ensure that when you close your door or window, the (2) holes will be directly across from each other. Also, you need to verify that there is no more than a 3/4” space between the door or window and the frame as the 944-2GY has a 3/4” magnet spacing gap. If the magnet is within 3/4” of the recessed contact, then the contact loop will be open or close (depending on which wire leads you are using). Once the door or window opens up, the contact will switch to the faulted state and an alarm will be sent to the alarm control panel.