2
Tamper-proof Socket (Part #160-07-00)
Figure 2 — HEC-12 PRO QR
Figure 1 — C-1A PRO QR
Note: The special tamper-proof socket must be used for installation or removal of the tamper-resistant retaining screws.
Decorative Escutcheon Closure
Plate
(optional)
Omega HEC Sprinkler Wrench
(Part #15932000) use for pend. & S/W
Rigid Support Collar with Bolt
(Part #162-018-01)
1/2"
Branch Line Fitting
Rigid Support Collar
With Hex Bolt (To
prevent movement of
the sprinkler away
from the finished
ceiling
1" (25 mm) N.P.T.
Steel Nipple
Finished Ceiling
Closure Plate (Optional)
Escutcheon
Tamper-Resistant
Retaining Screw
3/8" (10 mm)
2 3/4" (69.9 mm)
Diamter
Retaining
Collar
3/4" (20 mm)
(12.7 mm)
17/16"
±
1/16"
(36.5mm
±
1.6mm)
No Closure Plate
1 3/8"
±
1/16"
(34.9mm
±
1.6mm)
Escutcheon Closure Plate
1 5/16"
±
1/16"
(33.3mm
±
1.6mm)
Security Closure Plate
2 1/4"
(57.2mm)
Diameter
Hole in Ceiling
2 1/2"
(63.5mm)
Escutcheon
4 1/2"
(114.3mm)
Dia.Security Closure Plate
3 5/8"
(92.1mm)
Dia.Escutcheon Closure Plate
Note: The special tamper-proof socket must be used for installation or removal of the tamper-resistant retaining screws.
Finished Ceiling
Finished Wall
Rigid Support Collar with Hex
Bolt (to prevent movement of
sprinkler head away from
finished wall surface)
Retaining Collar
Branch
Line Fitting
1" (25 mm) N.P.T. Steel Nipple
1" x 1/2" N.P.T. Reducer
(25 mm x 15 mm)
Escutcheon
Tamper-Resistant
Screw
1/2" (12.7 mm)
Deflector
Distance
4"-12"
( 101.6 mm to 304.8 mm)
3/4"
2 3/4"
Dia.
3/8"
Closure Plate (Optional)
1/4"
±
1/16"
(6.4mm
±
1.6mm)
1 7/16"
±
1/16"
(36.5mm
±
1.6mm)
No Closure Plate
1 3/8"
±
1/16"
(34.9mm
±
1.6mm)
Escutcheon Closure Plate
1 3/8"
±
1/16"
(34.9mm
±
1.6mm)
Security Closure Plate
2 1/4"
(57.2mm)
Diameter
Hole in W
all
2 1/2"
(63.5mm)
Escutcheon
4 1/2"
(1
14.3mm)
Dia. Security Closure Plate
3 5/8"
(69.9mm)
Dia. Escutcheon Closure Plate
OBSOLETE
