Kidde VS Series User Manual

Chapter 1: Installation and wiring
P/N 3102351-EN • REV 005 • ISS 28DEC18 13
Circuit specifications
• Class B, Class A, or Class X
• Communication line voltage: Maximum 20.6 V peak-to-peak
• Circuit current: 0.5 A max.
• Allowable circuit resistance: 66 Ω max.
• Allowable circuit capacitance: 0.5 µF max.
• Resistance between isolators: Limited only by overall wire run lengths
• Isolators: 64 maximum per loop (total both isolator bases and modules)
• Ground fault impedance: 0 to 5 kΩ
• Power-limited and supervised
• Synchronization: Signal synchronization is supported on a system-wide basis (all device
loops) when using CC1S, MCC1S, or T3T4 addressable notification appliance circuit (NAC)
modules and Genesis or Enhanced Integrity notification appliances.
Installation limits are subject to acceptance by the AHJ.
Figure 14: Device loop wiring location
Figure 15: Class B wiring
(1) Loop card
(2) Loop device
(1)
(2) (2)
A
S
LC
+
–
B
SL
C
+
–

Kidde VS Series Specifications

General

Power Source	120V AC
Battery Backup	9V battery
Sensor Type	Photoelectric
Alarm Sound Level	85 dB at 10 feet
Hush Feature	Yes
Test Button	Yes
LED Indicator	Yes
Mounting Type	Wall or ceiling
Compliance	UL 217