Description
The GEM-HEAT is a high-quality 135°F (57°C) Fixed temperature detector with Rate of Rise. It is compatible with the NAPCO Express and Gemini series GEM-RECV Series supervised security receivers.
The GEM-HEAT incorporates circuitry which will transmit an alarm signal upon an alarm condition, generate an hourly supervisory test signal to the receiver and also monitor and annunciate low battery.
Coding switches are not required or used in the GEM-HEAT. Each transmitter is assigned a unique identification code number at the factory. The transmitter is powered by one 3V Lithium battery (supplied) which can power the unit for up to two years. If the battery voltage drops below normal, a low-battery report will be sent to the receiver with any status or alarm transmission. If a low-battery condition is indicated, replace the battery.
Rate-of-Rise Feature: A temperature increase of 15° F or more per minute will result in an alarm transmission. When the rate-of-rise element alone has been activated, the detector is self-restoring.
Fixed Temperature: If the temperature of the center disk rises to the detector's rated temperature (135°F / 57°C) an alarm transmission will result. When actuated by the fixed temperature element, the detector is non-restorable and must be replaced. The need for replacement is indicated when the center disk has fallen free.
When the GEM-HEAT detects an alarm as described above, the integral transmitter will send an alarm signal to the receiver. The alarm signal will be repeated every 10 seconds thereafter as long as the alarm condition is present. A restore report will be sent when the condition clears. Supervisory status reports are sent from the GEM-SMK every hour.
