Kidde Fire Systems KRS-100, Application, Operation And Maintenance Manual

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83-KRS100-001 September 2002 5
KRS-100 Nitrogen Releasing System
4. Install control head cover making sure notch in manual
lever goes over manual release lever assembly. Se-
cure with five screws supplied.
5. Ensure that safety pin is in place on the actuator valve
assembly. If the pin cannot be placed in the actuator,
verify that control head is SET . See Figure 2.
6. Remove and discard tensioning tools in gas valve and/
or electric shut-off and secure covers to units.
7. Turn on electric power and open main gas line shut-off
valve. Ensure that pilot lights are lit.
8. Reset any electrical shutdown equipment operated by
the switch contacts.
9. Reset any dampers or other auxiliary equipment.
10. Install nitrogen cartridge by completely threading the
cartridge into the actuator assembly.
11. Remove the pin from the actuator valve assembly and
discard.
The KRS-100 system is now in the ready position.
6-1 INSPECTION AND MAINTENANCE
Inspect semi-annually or more frequently. Inspections
should be done by a qualified Kidde distributor.
Particular attention should be given to:
• KRS-100 Assembly Condition.
• Nitrogen Cylinder Pressurization: Ensure that it is
at proper weight.
Note: Nitrogen cylinder full weight includes the shipping
cap, ensure that it is installed prior to weighing.
• Detection and Actuation System.
• Actuation Tubing.
• Auxiliary Equipment.
6-1.1 KRS-100 Assembly Condition
The actuator valve assembly must be inspected internally
for nicks, dents, and scratches which would cause pos-
sible failure. Check to see that no part of the nitrogen cylin-
der is damaged or corroded.
6-1.2 Nitrogen Cylinder Pressurization
Remove the nitrogen cylinder and install shipping cap.
Weigh cylinder. Full cylinder weight is marked on the label.
If cylinder weight loss exceeds 3.5 grams, the cylinder (P/
N 83-100004-001) must be replaced.
When replacing a cylinder, the gasket located in the actua-
tor (P/N WF-263413-000) must also be replaced.
6-1.3 Detection and Actuation
The detectors should be checked (and cleaned if neces-
sary) to assure that they are free of foreign substances. If
the detection system is supervised, the supervisory fea-
tures should be checked to determine that the detection
system is in satisfactory condition. The methods and pro-
cedures for this inspection should be in accordance with
manufacturer’s recommendations.