TFP182
Page 3 of 4
A: 3-1/4 inches (82,6 mm)
C: 2-3/8 to 2-5/8 inches (60,3 to 66,7 mm)
B: 3/16 inches (4,8 mm)
D: 1-3/4 to 2-1/4 inches (44,5 to 57,2 mm)
by under- or over-tightening the Sprin-
kler/Support Cup Assembly. Re-adjust
the position of the sprinkler fitting to
suit.
Step 1.
Install the sprinkler only in the
pendent position with the center-line
of the sprinkler perpendicular to the
mounting surface.
Step 2.
Remove the Protective Cap.
Step 3.
With pipe thread sealant
applied to the pipe threads, hand-
tighten the sprinkler into the sprinkler
fitting.
Step 4.
Wrench-tighten the sprinkler
using only the RFII Sprinkler Wrench,
see Figure 3. Apply the RFII Sprinkler
Wrench to the Sprinkler as shown in
Figure 3.
Step 5.
Replace the Protective Cap by
pushing it upwards until it bottoms out
against the Support Cup, see Figure
4. The Protective Cap helps prevent
damage to the Deflector and Arms
during ceiling installation and/or finish.
You can also use the Protective Cap to
locate the center of the clearance hole
by gently pushing the ceiling material
up against the center point of the Pro-
tective Cap.
NOTICE
As long as the Protective Cap remains
in place, the system is considered “Out
of Service”.
Step 6.
After the ceiling has been
completed with the 2-1/2 in. (63,5 mm)
diameter clearance hole and in prep-
aration for installing the Cover Plate/
Retainer Assembly, remove and discard
the Protective Cap. Verify that the
Deflector moves up and down freely.
If the Sprinkler is damaged and the
Deflector does not move up and down
freely, replace the entire Sprinkler.
Do not attempt to modify or repair a
damaged sprinkler.
Step 7.
When installing an Air and Dust
Seal, see Figure 5; otherwise, proceed
to Step 8. To attach the Air and Dust
Seal, verify the angle of the outside
edge of the seal is oriented accord-
ing to Figure 5. Start the edge of the
Retainer in the grooved slot of the Air
and Dust Seal and continue around the
retainer until the entire Air and Dust
Seal is engaged.
Step 8.
Screw on the Cover Plate/
Retainer Assembly until the Retainer,
shown in Figure 2, or the Air and Dust
Seal, shown in Figure 5, contacts the
ceiling. Do not continue to screw on the
Cover Plate/Retainer Assembly so that
it lifts a ceiling panel out of its normal
position. If you cannot engage the
Cover Plate/Retainer Assembly with
the Support Cup or you cannot engage
the Cover Plate/Retainer Assembly suf-
ficiently to contact the ceiling, you must
reposition the Sprinkler Fitting.
COVER PLATE
PROFILE DEPTH
DIMENSION B
1/2" (12,7 mm)
THREADED
ADJUSTMENT
D
FACE OF
SPRINKLER
FITTING
MANUFACTURER
PRESET GAP
3/32" (2,4 mm)
FACE
OF CEILING,
RETAINING RING
MOUNTING
SURFACE
SPRINKLER
SUPPORT CUP
ASSEMBLY
CLEARANCE HOLE
DIAMETER
DIMENSION C
DEFLECTOR
IN DROPPED
POSITION
3/16" to 11/16"
(4,8 to 17,5 mm)
REFERENCE
COVER PLATE
RETAINER
ASSEMBLY
COVER PLATE
DIAMETER
DIMENSION A
FRAME
ARM
SUPPORT
CUP
7/8" (23 mm)
SQUARE
ACCEPTS
1/2" SOCKET
DRIVE
ALIGN
ARROWS WITH
FRAME ARMS
FIGURE 2
SERIES RFII-MRI CONCEALED SPRINKLER
INSTALLATION DIMENSIONS
FIGURE 3
SERIES RFII-MRI SPRINKLER WRENCH
