IS950XLTDABF (REV. D 5/18)
ZURN WILKINS
1747 Commerce Way, Paso Robles, CA 93446 Phone:855-663-9876 Fax:805-238-5766
SPECIFICATIONS
Maximum working water pressure:
175 PSI
Hydrostatic test pressure:
350 PSI
Maximum working water temperature:
180°F
End connections:
Threaded ANSI B1.20.1
PROBLEM
1. LEAKING CHECK VALVES
2. LOW OR NO FLOW
CORRECTIVE ACTION
1. Clean seat and seal ring area
2. Replace seat
3. Replace seat o-ring
1. Verify flow direction arrow
2. Turn handles counterclockwise
3. Attach pressure gauge to test cock
#1 and verify pressure
POSSIBLE CAUSES
1. Debris on seat or seal ring
2. Damaged seat
3. Damaged seat o-ring
1. Device installed backwards
2. Shut-off valves or valve upstream
may not be fully open
3. Low supply pressure
Proper performance is dependent upon licensed, qualified personnel performing regular, periodic testing according
to ZURN WILKINS’ specifications and prevailing governmental & industry standards and codes and upon following
these installation instructions. Failure to do so releases ZURN WILKINS of any liability that it might otherwise have
with respect to that device. Such failure could also result in an improperly functioning device.
⃟
Rated Flow (Established by approval agencies)
Troubleshooting
Performance Characteristics
BLACK
(SWITCH POSITION VALVE FULL OPEN)
SWITCH 1: DUAL LEADS
RED
WHITE
LISTED FIRE ALARM
CONTROL PANEL
SUPERVISORY CIRCUIT
NC
COM
NO
TO NEXT INDICATOR
OR
END OF LINE RESISTOR
Green Lead provided is ground for switch housing
Switch Rating: 10AMP/ 115 VAC
.5AMP/28 VDC
Cap unused leads with wire nuts and tuck inside junction box (not provided)
NOTE: Supervisory tamper switches are for
indoor and outdoor use.
SWITCH 2: SINGLE LEADS
AUXILIARY
EQUIPMENT
ORANGE
YELLOW
BLUE
COM
NC
NO
VOLTAGE
SOURCE
Wiring Diagram for 950XLTDABFSS Only
4
®
www.zurn.com
0
34
69
103
138
0.0
3.2
6.3
9.5
12.6
15.8
0
5
10
15
20
0
50
100
150
200
250
PR
ESSU
R
E
LO
SS
(k
Pa
)
FLOW RATE (l/s)
P
R
E
SSU
R
E
L
O
SS
(P
SI
G
)
FLOW RATE (GPM)
MODEL 950XLTDABF 2" (STANDARD & METRIC)
