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Penn A19QSC Installation Instructions Manual

Penn A19QSC Installation Instructions Manual

Type temperature controls with nema 4x raintight enclosures

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A19QSC Type Temperature Controls with NEMA 4X
Raintight Enclosures
Installation Instructions
Applications
IMPORTANT: Use this A19QSC Type Temperature Control only as an operating control. Where failure or
malfunction of the temperature control could lead to personal injury or property damage to the controlled
equipment or other property, additional precautions must be designed into the control system. Incorporate and
maintain other devices, such as supervisory or alarm systems or safety or limit controls, intended to warn of or
protect against failure or malfunction of the temperature control.
IMPORTANT : Utiliser ce A19QSC Type Temperature Control uniquement en tant que dispositif de contrôle de
fonctionnement. Lorsqu'une défaillance ou un dysfonctionnement du temperature control risque de provoquer
des blessures ou d'endommager l'équipement contrôlé ou un autre équipement, la conception du système de
contrôle doit intégrer des dispositifs de protection supplémentaires. Veiller dans ce cas à intégrer de façon
permanente d'autres dispositifs, tels que des systèmes de supervision ou d'alarme, ou des dispositifs de
sécurité ou de limitation, ayant une fonction d'avertissement ou de protection en cas de défaillance ou de
dysfonctionnement du temperature control.
The A19QSC Type Temperature Controls are designed for use in many agricultural applications. For installations
that require National Electrical Code (NEC) Article 547 compliance, use a series A19P or T19P control.
The A19QSC Controls have rugged Noryl plastic enclosures and are UL Listed as Type 4X. See Figure 1 and the
Technical Specifications section for additional information.
The A19QSC Type Temperature Controls have internal setpoint adjustment dials and range scales.
A19QSC Type Temperature Controls with NEMA 4X Raintight Enclosures
Installation Instructions
1
Part No. 24-7664-2667, Rev. C
Issued September 2018

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Summary of Contents for Penn A19QSC

  • Page 1 National Electrical Code (NEC) Article 547 compliance, use a series A19P or T19P control. The A19QSC Controls have rugged Noryl plastic enclosures and are UL Listed as Type 4X. See Figure 1 and the Technical Specifications section for additional information.
  • Page 2 1.75 (44) 1.26 (32) 6.10 (154) 5.66 (144) MENU 0.06 (1.5) OD, Length Varies by Model Figure 1: Dimensions for A19QSC Temperature Controls with NEMA 4X Enclosures, in. (mm) A19QSC Type Temperature Controls with NEMA 4X Raintight Enclosures Installation Instructions...
  • Page 3 IMPORTANT: Do not install the A19QSC Control where the maximum temperature exceeds 140°F (60°C). Installing the device where temperatures exceed 140°F (60°C) may cause damage to the A19QSC Control and may void the warranty. Mount the temperature control to a flat surface with screws through the holes in the mounting ears on the back of the case.
  • Page 4 6. Verify the O-ring seal is properly seated. 7. Replace the cover and tighten the screws. Heating Load opens on temperature increase. Dial A19 Temperature Control Figure 2: Typical Wiring for Heating Applications A19QSC Type Temperature Controls with NEMA 4X Raintight Enclosures Installation Instructions...
  • Page 5 User Supplied SPDT Switch Cooling or Switching Thermostat Load Heating Load opens and closes on temperature increase. Dial A19 Temperature Control Figure 4: Typical Wiring for Combination Heating and Cooling Applications A19QSC Type Temperature Controls with NEMA 4X Raintight Enclosures Installation Instructions...
  • Page 6: Setup And Adjustments

    R and B opens on SPDT models. See Figure 2, Figure 3, and Figure 4. Repair Information If the A19QSC type electromechanical temperature control fails to operate within its specifications, replace the unit. For a replacement A19QSC control, contact the nearest PENN by Johnson Controls® representative.
  • Page 7 CHINA www.penncontrols.com ® Johnson Controls and PENN are registered trademarks of Johnson Controls in the United States of America and/or other countries. All other trademarks used herein are the property of their respective owners. © Copyright 2018 by Johnson Controls. All rights reserved.