Flexput I/O Circuits; 1: Conventional Notification Appliance - Honeywell 6820 Manual

Control Panel Installation

4.17 Flexput I/O Circuits

The two Flexput circuits are an innovative and versatile feature of the control panel. They can be used as: Class A or B notification circuits,
Class A or B initiation circuits (either 2- or 4-wire detectors), or as auxiliary power (resettable, continuous, sounder base sync, or door
holder).
The polarity of the Flexput terminals differs depending on whether the circuit is programmed as an input or an output circuit. If the circuit is
programmed as an input circuit (for a detector or normally open contact) the X terminal is negative and O terminal is positive. If the circuit is
programmed as an output circuit (Aux power or NAC) then the X terminal is positive and the O terminal is negative.
NOTE: Where power to a device or appliance is supplied over a separate pathway from the notification appliance and/or SLC, the operation of
the power pathway shall meet the performance requirements of the, notification appliance, and/or signaling-line circuit(s) and the power circuit
shall be defined by the applicable class in the product installation wiring diagram/instructions consistent with the operation of the particular
power pathway.
4.17.1 Conventional Notification Appliance
This sub-section of the manual explains how to install conventional notification appliances for Class A and Class B configurations.
Class B Notification Wiring
You must use an appliance listed in the Device Compatibility Document.
To install a circuit:
1. Wire Class B notification appliances as shown in Table 4.44.
2. Configure the circuit through programming (see Section 8.5).
Maximum voltage drop is 3V per Class B notification.
Class A Notification Wiring
You must use an appliance listed in the Device Compatibility Document.
To install a Class A notification appliance circuit:
1. Wire the Class A notification appliances as shown in Figure 4.45.
CAUTION: SYSTEM SUPERVISION
!
FOR PROPER SYSTEM SUPERVISION DO NOT USE LOOPED WIRE UNDER TERMINALS MARKED – AND + OF THE
NAC CIRCUIT. BREAK WIRE RUNS TO PROVIDE SUPERVISION OF CONNECTIONS.
50
Figure 4.44 Class B Notification Appliance Circuit Wiring
Current
1.0A
1.5A
2.0A
2.5A
3.0A
Table 4.6 Maximum Impedance Class B
4.7 kΩ EOL
Alarm Polarity Shown
Regulated, 24 VDC Full Wave Rectified circuits.
Rated at 27.4 VDC, 3A per circuit, 6A max total.
supervised, power-limited
Maximum Impedance
3Ω
2Ω
1.5Ω
1.2Ω
1.0Ω
6820/EVS Manual — P/N LS10144-001SK-E:E 4/6/2022
Flexput I/O Circuits