26 MRP-2002 Series Instruction Manual — P/N 53049:E5 7/28/2016Installation Input CircuitsCombination Manual Release/AbortA combination Manual Release/Abort circuit allows an FACP to distinguish between a manualrelease pull station and an abort switch installed on the same circuit. Any circuit can be pro-grammed as a Combo Type zone. The following figure illustrates the wiring of Zone 2 as a Style B(Class B) Manual Release/Abort circuit.Requirements for the Combination Manual Release/Abort circuit are as follows: The manual release pull station must connect to the FACP Initiating Device Circuit beforethe In-Line Resistor as shown in Figure 2.7. The Abort Switch must connect to the FACP Initiating Device Circuit after the In-LineResistor as shown in Figure 2.7. Program the FACP Initiating Device Circuit as a Manual Release/Abort combination circuitas described in “Input Zones” on page 54.Class B Initiating Device Circuits (supervised and power-limited)4.7 KΩ, ½ watt resistor P/N:71252In-Line-Resistor1.2 KΩ, ½ watt resistor P/N: 75579Manual releasepullstation Dummy load all unusedcircuits - 4.7 KΩ, ½ wattresistor (P/N: 71245)Figure 2.7 Style B Combination Circuit on Zone 2Abort Switchms10udcomboIDC.cdr