Kidde Fire Protection 400 Series, Design, Installation, Operation, And Maintenance Manual

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Installation
06-237518-001 4-15 July 2018
4-7.7 Installing Release Units
Install the release units on the master cylinders in the locations specified on the cylinder bank
assembly drawings using the following procedure:
Note: As the release unit seals against the cylinder valve with an O-ring, ensure the inlet port
is free from dirt or other impurities and properly lubricated. Always use clean hands and
tools.
1. Make sure the O-ring in the connecting swivel of the release unit is in place and properly
lubricated. If lubrication is missing, use silicone spray (Würth Art no: 0893221 or similar).
2. Install the release unit on the cylinder valve and tighten swivel nut by hand until pressure
is indicated on the gauge.
3. Secure the connecting swivel of the release unit by the use of an M36 A/F fixed wrench.
Apply a torque of 60 ± 1Nm on the unit. A counter hold may be required during tightening.
4. Leak test all connections on the release unit by means of ammonium-free leak detection
liquid or spray, ensuring that there is no leakage
5. Connect the actuation hose to the release unit but not to the cylinder valve at this stage.
For multi-hazard systems using Pilot line non-return valves, see Section 4-7.9.
Note: The installation of the actuation hose to the cylinder valve inlet should only be per-
formed by the commissioning engineer, see the last step of Section 4-17.
6. For multi cylinder systems, use an actuation hose to connect the outlet of each valve to the
inlet of the next valve.
7. Install a Pilot Line Bleed Valve (P/N 38-400007-001) on the outlet of the last cylinder in the
system.
Note: If installing a multi-row cylinder bank, when first row has been installed then connect
up the cables between each pressure gauge low pressure monitoring contacts via the
quick connect cable joiners. This will permit easy access to the contact gauges and so-
lenoid valve(s) on the cylinders in the inner row.
CAUTION
Only the O-ring should be lubricated. Excessive lubricant in the valve port will enter
into the solenoid valve itself when pressurized and may jeopardize the
performance.
CAUTION
Do not tamper with the release unit. Any adjustment to components pre-fitted to the
connector block will lead to a leak. After the release unit is pressurized, do not
adjust the alignment as this may reset the shredder valve in the cylinder valve
causing it to discharge or not seal properly.
WARNING
Ensure the actuation hose is fully inserted into the release unit. There should be
a gap of no more than 1/4” (6 mm) between the end of the festo connector and
the release unit quick connect.
WARNING
Ensure the actuation hose is fully inserted into the release unit. There should be
a gap of no more than approximately 1/4” (6 mm) between the end of the festo
connector and the release unit quick connect.
WARNING
Never attach the release unit to the cylinder valves until the cylinders are secured
in brackets or racking. Under no circumstances is the release unit to remain
attached to the cylinder valve after removal from service, handling, storage, or
during shipment. Failure to follow these instructions could result in serious bodily
injury, death, or property damage.