INSTITUTIONAL SPRINKLERS K5.6
TECHNICAL DATA
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
Telephone: 269-945-9501 Technical Services: 877-384-5464 Fax: 269-818-1680 Email: [email protected]
Visit the Viking website for the latest edition of this technical data page www.vikinggroupinc.com
Page 5 of 9
Form No. F_032319 20.01.03 Rev 20.1
© 2020 Viking Group Inc. All rights reserved
Procedure:
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.
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.
2. Inspect the sprinkler assemlby 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 in a horizontal position.
5. OPERATION
The sprinkler is recessed into the mounting surface, flush to the wall, with only a portion of the fusible link assembly exposed beyond
the wall. The concealed deflector is held inside the sprinkler body until the eutectic metal solder link is fused. When the sprinkler fuses,
the deflector extends to discharge and distribute water.
The special escutcheon plates shown on this document are the only escutcheon rings that may be used with these institutional
sprinklers, and all of these sprinklers must be installed with an escutcheon plate.
The sprinkler piping behind the wall leading to the sprinkler must be secured to prevent any movement of the sprinkler. One method
of anchoring the pipe behind the wall is to use the retaining flange and screw assembly that are available from Viking. The flange
slides over the sprinkler nipple prior to threading the nipple into the tee.
Figure 4: Sprinkler Assembly
Place level here
Wrench and cap
marked with “TOP”
