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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: techsvcs@vikingcorp.com
LOCATING RESIDENTIAL SPRINKLERS NEAR HEAT SOURCES
Ordinary temperature rated residential sprinklers (135 °F to 170 °F rated) are only to be installed where the maximum ambient
ceiling temperature will not exceed 100 °F. Where the maximum ambient ceiling temperature will be from 101 °F to 150 °F, use
intermediate temperature rated residential sprinklers (175 °F to 225 °F rated).
Residential sprinklers must be positioned a sufficient distance away from heat sources that include fireplaces, stoves, kitchen
ranges, wall ovens, hot water pipes, water heaters, furnaces and associated flues and ducts, and light fixtures. The following
minimum distances must be maintained for both ordinary and intermediate temperature rated residential sprinklers as indicated.
Heat Source
Side of open or recessed fireplace
Front of recessed fire place
Coal- or wood-burning stove
Kitchen range
Wall oven
Hot air flues
Uninsulated heat ducts
Uninsulated hot water pipes
Side of ceiling- or
wall-mounted hot air diffusers
Front of wall-mounted hot air diffusers
Hot water heater or furnace
Light fixture less than 250W
Light fixture 250W to 499W
Where residential sprinklers will be exposed to the rays of the sun passing through glass or plastic skylights, use inter-
mediate temperature rated sprinklers.
When locating residential sprinklers in an unventilated concealed compartment, under an unventilated attic or unin-
sulated roof, where the maximum ambient temperature does not exceed 150 °F, use intermediate temperature rated
sprinklers.
Form No. F_080190
18.10.25
TECHNICAL DATA
Rev 16.1.P65
Minimum Distance from
Edge of Source to Ordinary
Temperature Rated Sprinkler
Inches
metric
36
.91 m
60
1.5 m
42
1.1 m
18
457 mm
18
457 mm
18
457 mm
18
457 mm
12
305 mm
24
.61 m
36
.91 m
6
152 mm
6
152 mm
12
305 mm
Sprinkler RES14
FREEDOM
RESIDENTIAL
®
SPRINKLER
INSTALLATION GUIDE
Minimum Distance from
Edge of Source to Intermediate
Temperature Rated Sprinkler
Inches
metric
12
305 mm
36
.91 m
12
305 mm
9
229 mm
9
229 mm
9
229 mm
9
229 mm
6
152 mm
12
305 mm
18
457 mm
3
76 mm
3
76 mm
6
152 mm
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