P/N 9999970497
Installation
Model DD Series, Model GP56, and Model AH Series sprinklers
are installed with the W2 wrench. The Model DS56 wrench is
used to install Model DS56 sprinklers. The use of any other
wrench to install Reliable Attic sprinklers is not permitted and
may damage the sprinkler. Place the specified wrench over
the sprinkler until the wrench engages the wrench flats. Do
not wrench any other part of the sprinkler assembly. Tighten
the sprinkler into the fitting after applying a PTFE based thread
sealant to the sprinkler’s threads. Recommended installation
torque is specified in Table J.
Installation Torque
Table J
Sprinkler Threads
Recommended
Installation Torque
(min. – max.)
ft-lb
N-m
½” NPT or ISO7-1R1/2
8-18
11-24
¾” NPT or ISO7-1R3/4
14-20
19-27
Installation Wrenches
Figure 33
Model W2 Wrench
For Models DD56, DD80, GP56, AH42, and AH56 sprinklers
Model DS56 Wrench
For Model DS56 sprinklers
Do not exceed the maximum recommended torque. Exceeding
the maximum recommended torque may cause leakage or
impairment of the sprinkler. Use care when placing or removing
the wrench from the sprinkler to avoid damage to the sprinkler.
Maintenance
Reliable Attic sprinklers should be inspected and the sprinkler
system maintained in accordance with NFPA 25, as well as the
requirements of any Authorities Having Jurisdiction.
Prior to installation, sprinklers should remain in the original
cartons and packaging until used. This will minimize the
potential for damage to sprinklers that could cause improper
operation or non-operation.
Do not clean sprinklers with soap and water, ammonia liquid or
any other cleaning fluids. Remove dust by gentle vacuuming
without touching the sprinkler.
Replace any sprinkler which has been painted (other than
factory applied). Replace any sprinkler which has been
damaged. A stock of spare sprinklers should be maintained to
allow quick replacement of damaged or operated sprinklers.
Failure to properly maintain sprinklers may result in inadvertent
operation or non-operation during a fire event.
Listing & Approval Agency
Underwriters Laboratories, Inc. and UL Canada (cULus)
Listing Category: Sprinklers, Automatic and Open
Guide Number: VNIV, VNIV7
Guarantee
For the Reliable Automatic Sprinkler Co., Inc. guarantee, terms,
and conditions, visit www.reliablesprinkler.com.
Ordering Information
Specify the following when ordering.
Sprinkler
• Model (DD56-6, DD56-27, DD80-6, DD80-27,
DS56, GP56, AH42, AH56)
• Threads (NPT or ISO 7-1)
Sprinkler Wrench
• Model W2 (for Model DD Series, Model GP56, and
Model AH Series sprinklers)
• Model DS56 (for Model DS56 sprinklers)
Bulletin 056
February 2020
Page 27 of 27
www.reliablesprinkler.com
