Specifications

Model SK-4224 Fire Alarm Control Panel Installation/Operation Manual
A-2 151068
A.1.2 Two-Wire Smoke Detectors
The table below lists two-wire smoke detectors that are compatible with the SK-4224. The
columns show the number of detectors per circuit that can be used. The two-wire
compatibility identifier is 24F.
Note: The check mark indicates that this device can be used in enhanced mode.
Table A-1: Compatible Two-Wire Smoke Detectors
Manufacturer
Enhance
Mode
Compatible
Model Name or Number
(Base model name or number in
parentheses.)
Compatibility ID
# per Circuit
Head Base
Kidde-Fenwal
CDP 7051 (2-Wire, 70-201000-001 CDP 7051,
I51FE1
FE51A,
FE01A
32 / loop
PSD 7155 (2-Wire, 70-201000-001) P55FE1 FE51A,
FE01A
28
PSD 7156 (2-Wire, 70-201000-001) P56FE1 FE51A,
FE01A
28
Apollo
4 55000-350 (45681-200) 55000-350 45681-200 24
4 55000-250 (45681-200) 55000-250 45681-200 24
Detection Systems
DS250 (MB2W or MB2WL) B A 18
DS250HD (MB2W or MB2WL) B A 18
DS250TH (MB2W or MB2WL) B A 18
DS283 (MB2W or MB2WL) B N/A 30
DS283TH (MB2W or MB2WL) B N/A 30
ESL
4 429C (S10A) N/A S10A 30
4 429CRT (S11A) N/A S11A 30
4 429CST (S11A) N/A S11A 30
4 429CT (S10A) N/A S10A 30
4 609U01-11 S10 S00 40
4 609U02-11 S10 S00/S03 40
4 611U (601U or 602U) S10 S00/S03 40
4 611UD (601U or 602U) S10 S00/S03 40
4 611UT (601U or 602U) S10 S00/S03 40
4 612U (601U or 602U) S10 S00/S03 40
4 612UD (601U or 602U) S10 S00/S03 40
4 711U (701E or 701U) N/A S10A 25
4 712U (701E or 701U) N/A S10A 25
4 713-5U (702E or 701U) N/A S10A 25
4 713-6U (702E or 701U) N/A S10A 25
4 721-U (S10A) N/A S10A 30
4 721-UT (S10A) N/A S10A 30