Question: In what way heat detectors should be connected to a Fire control panel “Gamma-132”?
Answer: The connection of heat detectors SPT-2B and SPT-3 to the AC loop of the Fire control panel “Gamma-132” is carried out according to the scheme 
. Besides it is worth while to provide the earth of the common wire of an electronic block of the Control panel “Gamma-132”, for that the lower lead of the terminal “Fault – open collector” located on the left side of a block should be connected through a resistor (resistance 1 KΩ) with an earth terminal of the Control panel located on the rear wall of a case on the right side. The control panel itself must be connected to the ground mat with the resistance ≤ 4 Ω.
