Cable Installation Guidelines: CHECKFIRE 110/210 Detection and Actuation Systems (F-2016318)
Cable Installation Guidelines: CHECKFIRE 110/210 Detection and Actuation Systems (F-2016318)
Cable Installation Guidelines: CHECKFIRE 110/210 Detection and Actuation Systems (F-2016318)
SHAFT
TORQUE ADJUSTER
FIGURE 1
TORQUE WRENCH AND TORQUE
ADJUSTER
010073 / 010074
* Utilize Protective Covering (Part No. 56692) between P-clamp and Linear
Detector outer jacket
GENERAL INSTRUCTIONS FOR CABLE INSTALLATION
6. The minimum bend radius for all cable assemblies is
(Continued)
2.5 in. (63.5 mm). See Figure 6.
4. Connectors shall be supported such that no bending or
side-loading of the connector occurs. Figure 4 (top)
shows an example of a cable that is properly supported
prior to bending and does not cause side-loading of the
connec- tor. Figure 4 (center) shows an example of a
cable that is improperly supported prior to bending. This
can result in undesired connector side-loading of the BEND RADIUS 2.5 IN. (63.5 mm)
connector. Figure 4 (bottom) shows connector side-
loaded due to improper cable support. Improper support
and side-loading of connectors can lead to intermittent
open faults on systems exposed to intense vibration.
PROPER SUPPORT
FIGURE
6 NO BENDING BEFORE P-CLAMPS
AND
MINIMUM BEND RADIUS
010082 / 010083
IMPROPER BENDING BEFORE P-CLAMP 7. Double-loop cable ties (Part No.440737) may be used to
support cabling between P-clamped connections only.
See Figure 7.
Figure 5.
FIGURE 7
DOUBLE LOOP CABLE TIES: PROPER SUPPORT (ABOVE);
IMPROPER SUPPORT (BELOW)
010084 / 010085
FIGURE
5 SPACERS ADDED TO P-CLAMPS ON RELEASE,
RELAY, AUX OUTPUT AND AUX POWER CABLE
JACKET
010080 / 010081
GENERAL INSTRUCTIONS FOR CABLE INSTALLATION
11. If P-clamping on one of the cable over-molds is not
(Continued)
feasible, P-clamps may be used directly on the cabling on
8. Cable ties shall be spaced no greater than 3 ft (0.9 m) both sides of the connection, however, the clamps must
from any connection point and no further than 3 ft (0.9 m) be installed within 12 inches of the connection point. See
from each other for all cabling, with the exception of Linear Figure 11. Note: Ensure the connection is secured such
Detectors. Linear Detectors shall be supported every that no side-loading or bending at the connection occurs.
12 – 18 inches (0.3 – 0.45 m). See Figure 8.
LINEAR DETECTORS: 12 IN. (0.3 m) D 18 IN. (0.45 m) ALL OTHER CABLING: D 3 FT (0.9 m)
D
D 12 IN. (0.3 m)
D FIGURE 11
D
CABLES SUPPORTED WITH TWO P-
CLAMPS
FIGURE 8 ON CABLE JACKETS
010076
DOUBLE LOOP CABLE TIES TERMINATION
DISTANCES
010086 Specific Instructions for Mounting Linear Detectors
12. Linear Detectors shall be supported with at least one
Specific Instructions for Mounting Display, Detection, P-clamp on the cable over-mold to ensure adequate
Release, Relay, Aux Output and Power Cables support of the connection point. The connection point shall
9. P-clamping directly on the cable over-mold of both connec- be further supported with additional P-clamps installed
tors offers the best support for the cable connection. See within 12 inches (0.3 m) on both sides of the connection
Figure 9 and see Table 2 for P-clamp sizes. point. A protective covering (Part No. 56692) shall be
positioned between the P-clamps and the Linear Detector
as shown in Figure 12.
D 12 IN. (0.3 m)
FIGURE
9 P-CLAMPS DIRECTLY ON BOTH OVER-
MOLDS
010087
D
10. If P-clamping on each over-mold is not feasible, the cables
can be P-clamped on a single cable over-mold so long as D
D 12 IN. (0.3 m)
FIGURE 10
ONE P-CLAMP ON AN OVER-MOLD
AND
ONE ON CABLE JACKET
010088
INSTRUCTIONS FOR CABLE INSTALLATION AT THE ICM
3. Cables exiting the ICM shall be supported so they remain
1. Follow planned route in the layout drawing and install each straight 6 in.(152 mm) from the ICM as shown in Figure
circuit starting at the ICM receptacles and work outward 13. Use stand-offs and appropriately sized P-clamps as
towards EOL devices. Completely install one circuit at a outlined in Table 2. Failure to support the cables in this
time, finishing with the power circuit. manner may result in side-loading of the connectors as
2. Each cable shall be hand-tightened until the connector they exit the ICM, resulting in open faults. Figure 14 illus-
is seated, and then tighten using the CHECKFIRE cable trates an example of an improper installation.
torque wrench. All connectors shall be torqued to the spec-
ifications shown in Table 1.
5 7/16 IN.
(138 mm)
4 13/16 IN.1 3/8 IN. (35 mm)
(122 mm)TYPICAL
4 1/16 IN. (103 mm)
2 11/16 IN.
3 7/16 IN.
(683 mm)
(87 mm)
1 5/16 IN.
(33 mm)
2 7/16 IN. 1 1/2 IN.(38 mm) CENTERLINE OF CABLE2 5/8 IN.(67 mm)
(62 mm) CENTERLINE OF CABLE
1 5/16 IN.
SIDE VIEW
6 IN. (152 mm) (33 mm)
FIGURE 13
MOUNTING DIMENSIONS FOR SUPPORT OF CABLES CONNECTED TO THE ICM
010092
FIGURE 14
IMPROPER SUPPORT OF CABLES CAUSES
SIDE-LOADED CONNECTORS
010093
INSTRUCTIONS FOR DETECTION TEE INSTALLATION
3. Another acceptable installation method is to connect
1. Detection Tees should be mounted to a flat surface when- Detection Tees to each other to form a “bank” of Detection
ever possible. Note: The mounting surface should be of Tees. Figures 16A and 16B show acceptable banked
sufficient stiffness such that cabling and tees are Detection Tee configurations. In Figure 16A, 5/8 in.
supported without being exposed to excessive vibration (15.8 mm) P-clamps are used directly on the connection
resonance while the machine is in operation. points of the horizontal path through the tee. The horizontal
2. The preferred installation method is to connect Detection cables are P-clamped within 12 in. (0.3 m) of the first tee
Tees to cabling (only) supported with appropriately sized connection point and the vertical cables are P-clamped
P-clamps (see Table 2) within 12 inches (0.3 m) of each within 8 in. (0.2 m) of the tee connection point. Figure
connection. Each cable should be supported at the same 16B shows each cable supported with a 5/8 in. (15.8 mm)
distance from each connector (see Figure 15). P-clamp on each cable over-mold.
D D
E D
D D 12 IN. (0.3 m)
E 8 IN. (0.2 m)
D 12 IN. (0.3 m)
FIGURE 16B
SUPPORT OF TEE BANK AT EACH CABLE OVER-MOLD
010096
INSTRUCTIONS FOR DETECTION TEE INSTALLATION
INSTRUCTIONS FOR RELEASE TEE INSTALLATION
(Continued)
1. Tees should be mounted to a flat surface whenever possi-
4. Tees shall be supported and properly secured such that ble. Note: The mounting surface should be of sufficient
no bending or side-loading of the connection points occurs stiffness such that cabling and tees are supported without
(See Figures 4 and 5). being exposed to excessive vibration resonance while the
5. Tees with an EOL Resistor connected directly to the tee machine is in operation.
shall be supported within 4 in. - 12 in. (0.1 m -0.3 m) of 2. The preferred installation method is to connect Release
each connection point, utilizing an appropriately sized Tees to cabling (only) and mount to a solid surface with
P-clamp (see Table 2). Tees with EOL resistors attached #8 fasteners through both mounting holes in the tee.
shall not be supported directly on the cable over-mold. See Cables shall be supported within 6 in. -12 in. (0.15 m -
Figure 17. 0.3 m) from each connection point with appropriately sized
P-clamps as shown in Table 2. P-clamping the cabling any
closer than 6 in. (0.15 m) to the connection point will cause
side-loading of the connection point which may result in
D open faults. Each cable should be supported at the same
distance from each connector as shown in Figure 18.
Cables shall be torqued to 8.8 in.-lb (1.0 N•m) as shown
in Table 1.
D
TWO #8 FASTENERS
D
6 IN. (0.15 m) D 12 IN. (0.3 m)
FIGURE 18
PROPER SUPPORT OF A RELEASE TEE
UTILIZING
THE TWO MOUNTING HOLES
010099
D
6 IN. (0.15 m) D 12 IN. (0.3 m)
FIGURE 19
PROPER SUPPORT OF A “FLOATING” RELEASE
TEE
010100
INSTRUCTIONS FOR RELEASE TEE INSTALLATION
(Continued)
4. Another acceptable installation method is to connect
Release Tees to each other to form a “bank” of Release
Tees. Release Tees connected in a bank shall be mounted
with #8 fasteners through both mounting holes in each tee.
Cables shall be supported directly on the cable over-mold
of each connection as shown in Figure 20.
#8 FASTENERS
(6 PLACES)
FIGURE 20
PROPERLY SUPPORTED RELEASE TEE
BANK
010101
FIGURE 21
DISPLAY AND DETECTION TORQUE FITTING (LEFT);
RELEASE, RELAY, AUX OUTPUT, AND
POWER TORQUE FITTING (RIGHT)
010102
FIGURE 22
ASSEMBLED M12 TORQUE WRENCH, SHOWN IN
THE ORIENTATION TO TIGHTEN THE CONNECTORS
010103