ance hole by gently pushing the ceiling material up
against the center point of the Cap.
Open the Protective Cap as shown in Figure 3, if the fire
protection system is to be in service while the ceiling in-
stallation is being completed.
5. After the ceiling has been completed with the 2-5/8 inch
(66,7 mm) diameter clearance hole and in preparation
for installing the Cover Plate Assembly, remove and dis-
card the Protective Cap, and verify that the Deflector
moves up and down freely.
If the Sprinkler has been damaged and the Deflector
does not move up and down freely, replace the entire
Sprinkler assembly. Do not attempt to modify or repair a
damaged sprinkler.
6. Screw on the Cover Plate Assembly until its flange just
comes in contact with the ceiling.
Do not continue to screw on the Cover Plate Assembly
such that it lifts a ceiling panel out of its normal position.
If the Cover Plate Assembly cannot be engaged with the
Mounting Cup or the Cover Plate Assembly cannot be
engaged sufficiently to contact the ceiling, the Sprinkler
Fitting must be repositioned.
CARE AND MAINTENANCE
The Stealth S110 must be maintained and serviced in ac-
cordance with the following instructions:
NOTES
1. Absence of the Cover Plate Assembly may delay sprin-
kler operation in a fire situation.
2. When properly installed, there is a nominal 3/32 inch
(2,4 mm) air gap between the lip of the Cover Plate and
the ceiling, as shown in Figure 1. This air gap is neces-
sary for proper operation of the sprinkler. If the ceiling is
to be repainted after the installation of the Sprinkler,
care must be exercised to ensure that the new paint
does NOT seal off any of the air gap.
3. Factory painted Cover Plates MUST NOT be repainted.
(They should be replaced, if necessary, by factory
painted units.) Custom paint matched cover assemblies
are factory available. Contact Star Sprinkler Customer
Service.
4. Do not pull the Cover Plate relative to the Enclosure.
Separation may result.
STAR SPRINKLER
1-1.1.13
Page 3
1-5/8"
REF.
(41.3 mm)
POSITION
OPEN
CAP IN
CAP IN
POSITION
CLOSED
M
O
R
O
N
E
F
P
E
T
R
N
T
C
E
T
O
I
Y
R
O
P
R
A
P
(3.2 mm)
POSITION
IN DROPPED
SPRINKLER
DEFLECTOR
1/8"
REF.
CUP
SPRINKLER
MOUNTING
O
BOTTOM VIEW
SIDE VIEW
FIGURE 2
#2111 SPRINKLER WRENCH
FIGURE 3
PROTECTIVE CAP
Sprinkler
Temperature
Rating
Cover Plate
Temperature
Rating
Maximum
Ceiling
Temperature
135°F / 57°C
200°F / 93°C
135°F / 57°C
135°F / 57°C
100°F / 38°C
100°F / 38°C
TABLE A
SUMMARY OF MAXIMUM PERMITTED
CEILING TEMPERATURE RATINGS
155°F / 68°C
175°F / 79°C
165°F / 74°C
165°F / 74°C
150°F / 68°C
150°F / 68°C
OBSOLETE
