5.3 Wiring Special Purpose Monitor circuits
SPM circuits are used for connecting abort and manual release switches to the 4004R. The application type, single hazard or dual hazard,
determines the function of each SPM.
Note: In Preaction/Deluge applications SPMs are used for Waterflow and Supervisory switches. In combination Agent Release and
Preaction/Deluge (Applications 10 and 11) SPM 1 is used for Abort/Manual and SPM 2 is used with a pressure switch. Refer to Appendix D
Applications with Relay Options for details. For all applications, the maximum voltage (open circuit) is 28 VDC, and the maximum current is
75mA. The chart below refers to applications 1-4 only.
Table 3: SPM circuit functions
Application SPM circuit function
Single Hazard, Class A/B
SPM 1: Connect only abort switches.
SPM 2: Connect only manual release switches.
Refer to Wiring dedicated, Class A/B SPM circuits.
Dual Hazard, Class A/B
Abort switches and manual release stations can share SPM 1 and SPM2. An activated abort
switch creates a current limited state on the circuit, whereas a manual release station creates
a short on the circuit. Circuit wiring depends on whether the abort switch contains an internal
1.2K current limiting resistor, as follows:
UL-Listed abort switches without an internal resistor must be wired as shown in Wiring shared
Abort/Manual Release with an external resistor.
UL-Listed abort switches with an internal 1.2K current limiting resistor must be wired as shown
in Wiring shared Abort/Manual Release with an internal current limiting resistor.
Single Hazard or Dual Hazard, Style C
SPM 1: Connect only abort switches
SPM 2: Connect only manual release switches
Refer to Wiring Style C circuits for additional information.
5.3.1 Wiring dedicated, Class A/B SPM circuits
Adhere to Figure 17 and the following guidelines when wiring SPM circuits for a single hazard application. Connect abort switches to SPM1
and manual release stations to SPM2. Do not combine abort switches and manual release stations on the same circuit. In Preaction/
Deluge applications, SPM 1 is connected to Supervisory switches and SPM 2 to Waterflow controls. As noted earlier, combination Agent
Release and Preaction/Deluge (applications 10-11) use SPM1 for Abort/Manual and SPM2 with a pressure switch.
• Use only manual release and abort switches that are UL Listed for fire use.
• Both manual release stations and abort switches must be normally open.
• All wiring must be 12 AWG maximum to 18 AWG minimum.
• Conductors must test free of all grounds.
• All wiring is supervised and power limited.
• Leave 3.3 K, 1/2 W (378-115) resistor across all unused SPM terminals. See item 4 in Figure 18.
• Terminate Style B (Class B) circuits with a listed 3.3K, 1W (Simplex Part Number 733-893) end-of-line resistor.
• For Canadian applications, use ULC-listed end-of-line resistors 2081-9010C, 2081-9018, or 2081-9037C.
• Terminate Style D (Class A) circuits with a listed 3.3K, 1 W (Simplex Part Number 733-893) end-of-line resistor.
• The maximum line resistance is 50 Ohms.
• Normal condition (no devices closed). Current at 24 VDC: 6.0 mA
• Manual Release condition. Current at 24 VDC: 25 mA
• SPM circuits do not support the connection of smoke or heat detectors.
• When SPM wiring is routed outside the building, use Listed Secondary Protector 2081-9044 or 2081-9028. A protector must be
installed at the building entrance such that protected wiring is segregated from unprotected, outdoor wiring.
page 24 579-354 Rev. X
4004R Fire Alarm installation, programming, and operating instructions
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