SECTION 5 – INSTALLATION ANd prOgrAmmINg
2014-MAY-09 REV. 01 PAGE 5-7
LINEAr dETECTOr INSTALLATION
Install Linear Detector throughout the hazard area by connect-
ing directly to the main detection circuit trunk. Note: Linear
detector should not be supported by hydraulic hoses.
NOTICE
The minimum bend radius for Linear
detector must not be less than 2 1/2 in.
(64 mm) (see Figure 5-17, page 5-8). Adjust
slack to avoid droops in cable. Allow appro-
priate slack through areas that are intended
to move under normal vehicle/equipment
operation.
• Do not try to stretch Linear Detector in any
way.
• Do not attach Linear Detector to commonly
removed or replaced equipment.
Note: Linear Detector must connect to main detection circuit
trunk, not the branch line of a Detection Circuit Tee.
Maximum total length of Linear Detector plus Detection Circuit
Main Trunk is 750 ft (228.6 m). For example: If Detection
Circuit Cable is 50 ft (15.24 m), then Linear Detector could be
up to 700 ft (213.4 m).
Keep the following in mind when installing a Linear Detector:
• Make certain Linear Detector routing allows direct exposure
to heat resulting from a fire
• Choose routing locations where heat is likely to travel to or
through quickly in event of a fire
• Maximum installed ambient temperature at the Linear Detec
-
tor location is 250 °F (121 °C).
• Support Linear Detector from mounting surfaces such as
decks, struts, framework, vehicle/equipment component
support, or support structures, etc., always keeping system
planning guidelines and vehicle/equipment maintenance
procedures in mind. Note: when supporting from the vehicle/
equipment make certain any support device requiring drilling
or welding is approved by owner or vehicle/equipment manu-
facturer.
• Avoid securing Linear Detector too close to extremely hot
components
• Route the Linear Detector where it will not be subject to
damage and not interfere with vehicle/equipment mainte-
nance procedures.
• Keep Linear Detector as far away as possible from vehicle/
equipment electric cables, particularly power cables to and
from generators and electric motors.
1. Make sure detection circuit cable is completely installed
from CHECKFIRE 210 ICM to hazard area end point. Start
installation of Linear Detector at end point of detection
circuit cable.
2. Install Linear Detector above hazard area or around
perimeter of a hazard compartment so it can react to
escaping heat. Refer to layout drawing. Do not allow struts,
frame members, or other obstacles to act as heat shields
between hazard and detector cable.
3. Do NOT install Linear Detector within 12 in. (305 mm) of
any area that will become extremely hot during operation,
such as:
• Engine blocks
• Exhaust manifolds
• Exhaust tubes/mufflers
• Turbochargers
4. Secure Linear Detector every 12 in. to 18 in. (305 mm
to 454 mm) using appropriately sized (5/16 in. (8 mm))
rubber-lined P-Clamps. where it is not possible to use
rubber lined P-Clamps, a double-loop cable tie (Part
No. 440737) and protective covering (Part No. 56692) is
acceptable to provide separation between cable and secur-
ing point. Secure more often if necessary
Slice rubber tube length wise to fit around the Linear
Detector. This protective covering should also be used
at locations where cable would rub against other hard
surfaces, rough edges, or sharp corners. See Figure 5-16.
FIgUrE 5-16
dOUBLE-LOOp CABLE TIE
009213
CHECKFIRE 210
Detection and Actuation System
LINEAR
DETECTOR
PROTECTIVE
COVERING
