Senju Sprinkler RC-QR Manual
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Senju Sprinkler RC-QR Manual

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G E N E R A L D E S C R I P T I O N
The Model RC-QR Commercial Flat Concealed Sprinklers are automatic sprinklers of the compressed fusible solder type.
They are decorative and quick responding. The Cover Plate Assembly hides the Deflector, Heat Responsive Element
etc., which is concealed above the ceiling. The cover plate has a flat profile, and its diameter is extremely small (2-5/8
inch, 68mm). The push-on and/or thread-on, thread-off design of the concealed cover plate assembly allows for easy
installation of the cover plate.
Therefore, the Model RC-QR should be your first choice when aesthetics is the major consideration for ultimate appeal
and unbeatable performance is desired.
They are to be installed per NFPA 13 guidelines.
The Model RC-QR has a 5.6 (80.6 LPM/bar
For extended installation flexibility, the Model RC-QR provides 1/2 inch (12.8mm) vertical adjustment. This adjustment in
installation decreases the need for precise cutting of the pipe that drops to the sprinkler and allows for a perfect fit with
a range of pipe lengths.
The heat sensitivity and water distribution design of Model RC-QR allows for an increased chance of occupants to escape
or evacuate in case of a fire. However, fire sprinkler systems are not a substitute for fire safety awareness or fire safety
construction required by building codes.
WA R N I N G S
The Model RC-QR must be installed and maintained in accordance with the rules stated herein as well as in compliance
with the applicable standards of the National Fire Protection Association regulations and the standards of any other
authorities having jurisdiction.
In the event of this condition, consult the authorities having jurisdiction for guidance and approval. Failure to do so may
impair the integrity of these devices.
www.senjusprinkler.com
Model RC-QR
K-Factor: 5.6
Commercial Flat Concealed Sprinkler, Pendent
Quick Response, Standard Coverage
) K-factor.
1/2
Page 1 of 8
SIN: SS9561
•
Document No. U03688A • 01-06-2022

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Summary of Contents for Senju Sprinkler RC-QR

  • Page 1 WA R N I N G S The Model RC-QR must be installed and maintained in accordance with the rules stated herein as well as in compliance with the applicable standards of the National Fire Protection Association regulations and the standards of any other authorities having jurisdiction.

  • Page 2: Technical Data

    ⑥ Cover Plate Assembly □ or UL only: 2-5/8″ square ( 68 mm) 205°F (96°C) Sprinkler with 162°F (72°C) Cover Plate Figure 1: Model RC-QR, K = 5.6 • Color Code: 162°F (72°C): Uncolored 205°F (96°C): White • Color Code (Cover Plate):...

  • Page 3: D E S I G N C R I T E R I A

    NFPA 13 or by the authority having jurisdiction. The Model RC-QR must not be used in applications where the air pressure above the ceiling is greater than that below. Inspect all sprinklers after installation to ensure that both the gap between the cover plate, ceiling and the 6 slots in the cup are open and free from any air flow impediment.
  • Page 4 The Model RC-QR must only be utilized in sprinkler systems per NFPA 13 guidelines. Operational Sensitivity Criteria For proper operational sensitivity, the Model RC-QR must be installed beneath a solid ceiling having a smooth or textured surface. Heat Source Criteria Refer to NFPA 13 for the requirements relating to the prevention of possible activation of the Heat Responsive Element of Model RC-QR, due to the exposure of a heat source other than an actual fire.

  • Page 5: Installation Steps

    Use only NR-H model wrench socket for installation of RC-QR sprinklers. Use of any other wrench or socket is prohibited and may cause damage to the sprinkler.
  • Page 6 Hook up Sprinkler Head Protective Cap Cap Removal Tool Pull down Step 1 Step 2 Step 3 Figure 5: Protective Cap Removal Mounting Screw Surface Cover Plate Assembly Deflector 2-5/8″ (Ø68 mm) or 3-1/4″ (Ø83 mm) □ or UL only: 2-5/8″ square ( 68 mm) Figure 6: Installation (Cover Plate Assembly) Incorrect...

  • Page 7: Care And Maintenance

    C A R E & M A I N T E N A N C E The following instructions must be implemented for the maintenance and service of the Model RC-QR. Notes Wet pipe sprinkler systems must be maintained at a minimum temperature of 40°F/4°C to prevent freezing and bursting of the pipe and/or sprinklers.

  • Page 8: Tools And Accessories

    Sprinkler • Model: RC-QR SIN: SS9561, Quick Response, Standard Coverage, Flat Concealed Sprinkler, Pendent, K5.6 • Temperature: 162°F (72°C) or 205°F (96°C) Cover Plate Assembly □ • Listed: 2-5/8 inch (φ68mm) or 3-1/4 inch (φ83mm) or 2-5/8 inch square (...

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