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Telephone: 269-945-9501 Technical Services: 877-384-5464 Fax: 269-818-1680 Email: techsvcs@vikingcorp.com
Visit the Viking website for the latest edition of this technical data page: www.vikinggroupinc.com
UL Listing Requirements (C-UL-US-EU):
When using Viking Residential Horizontal Sidewall Lead Free Sprinkler VK4840 for systems designed to NFPA 13D or NFPA 13R, apply the listed areas
of coverage and minimum water supply requirements shown in the Approval Chart above.
For systems designed to NFPA 13: The number of design sprinklers is to be the four contiguous most hydraulically demanding sprinklers. The minimum
required discharge from each of the four sprinklers is to be the greater of the following:
•
The flow rates given in the Approval Chart above for NFPA 13D and NFPA 13R applications for each listed area of coverage, or
Calculated based on a minimum discharge of 0.1 gpm/sq. ft. over the "design area" in accordance with the latest edition of NFPA 13.
•
THE TOP OF THE SPRINKLER BODY AND THE TOP OF THE INSTALLATION WRENCH ARE MARKED "TOP". Orient the top of the sprinkler
•
element parallel with the ceiling as shown in Figure 3.
Minimum distance between residential sprinklers: 8 ft. (2.4 m).
•
•
Venting is required.
IMPORTANT: Always refer to Bulletin Form No. F_091699 - Care and Handling of Sprinklers. Also refer to Form No. F_080190,
F_080814, and F_080415 for general care, installation, and maintenance information. Viking sprinklers are to be installed
in accordance with the latest edition of Viking technical data, the appropriate standards of NFPA and any other similar
Authorities Having Jurisdiction, and also with the provisions of governmental codes, ordinances, and standards, whenever
applicable. Final approval and acceptance of all residential sprinkler installations must be obtained from the Authorities
Having Jurisdiction.
Form No. F_100510
Rev 01
TECHNICAL DATA
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
(Also refer to the Approval Chart.)
Figure 2:
Wrench 13655W/B for Recessed Sprinkler VK4840
May 2023
DESIGN CRITERIA
FREEDOM
RESIDENTIAL
®
HORIZONTAL SIDEWALL
LEAD FREE SPRINKLER
VK4840 (K4.2)
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