Nozzles; Vent Plug - CaptiveAire EWC Installation, Operation And Maintenance Manual

Nozzles

There are various types of nozzles utilized in the EWC extinguishing system. The TF1 nozzle (p/n 87-
300021-001) is a 2 flow nozzle and is used for all zone protection. The ADP nozzle (p/n 87-300020-001) is
a 1 flow nozzle and is used for plenum, duct, and dedicated appliance coverage (e.g., salamanders,
upright broilers, chain broilers, and range with shelf). The R nozzle (p/n 87-120019-001) is a 1 flow nozzle
and used on ranges with obstructions.
The nozzles include a cap with replaceable, integrated foil seal. The foil seal prevents contamination from
entering the pipe network and is designed to burst upon system discharge, allowing the agent to flow to the
protected hazard area.
1. Nozzle
2. Cap
3. Foil

Vent Plug

A vent plug (p/n 60-9196984-000) is installed in each agent distribution pipe network to prevent pressure
build-up (caused by ambient temperature increases in the kitchen) from rupturing the foil seals on the
nozzles. The vent plug utilizes a ball check to allow for relief of minor pressure increases while sealing
closed under the higher pressure of a system discharge. The vent plug must be installed in a horizontal to
vertically upright position.
Figure 9 - Nozzles
1
ADP
2
3
Figure 10 - Vent Plug
10
TF1 R