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Telephone: 269-945-9501 Technical Services: 877-384-5464 Fax: 269-818-1680 Email: techsvcs@vikingcorp.com
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Procedure:
NOTE:
If the retaining flange assembly is to be used, slide the flange over the sprinkler drop nipple prior to threading
the nipple into the branch line tee. For an alternative bracing method, refer to Figure 8.
1. Install all piping and cut the sprinkler drop nipple so that the ½" (15 mm) NPT outlet of the reducing coupling is at the correct
elevation and centered in a 2" (50 mm) diameter opening in the ceiling.
2. Inspect the sprinkler assembly for damage.
3. Ensure the protective cap is on the sprinkler then apply a small amount of pipe-joint compound or tape (not shown) to the
external threads of the sprinkler only, taking care not to allow a build-up of compound in the sprinkler inlet.
4. Install the escutcheon onto the sprinkler body as shown. DO NOT install the sprinkler without the escutcheon.
5. For HSW sprinklers Align the "TOP" marking on the wrench with the same marking on the protective cap. Place the sprinkler
wrench over the protective cap on the sprinkler body.
NOTE:
The wrench is uniquely designed to fit over the sprinkler cap and into the sprinkler in a specific alignment.
6. Install the sprinkler into the fitting.
NOTE:
The Escutcheon plate MUST be tight against the ceiling or wall.
7. Tighten the sprinkler to approximately 7-14 ft-lbs.
8. If desired, use a level to ensure the HSW Institutional Sprinkler is in a horizontal position.
9. To avoid damaging the sprinkler, carefully grasp the provided pull tab (manually or using pliers) and pull straight away from the
sprinkler face to remove the protective cap.
Form No. F_032319
Rev 02
© 2023 Viking Group Inc. All rights reserved
TECHNICAL DATA
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
Figure 4: Sprinkler Assembly
Figure 5: Removing the Protective Cap
January 2023
INSTITUTIONAL SPRINKLERS K5.6
Wrench and cap
marked with "TOP"
Page 5 of 10
Place level here
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