Penn A421 Series - Installation Manual
Penn A421 Series Thermostat – Installation Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Table of Contents:
- Page 2 – A99 Series Temperature Sensors; A99B Series Temperature Sensors Product/Technical Bulletin; Mounting
- Page 3 – Wiring; WARNING; Risk of Electric Shock; AVERTISSEMENT; Risque de décharge électrique; Technical specifications; Table 1: Maximum sensor cable lengths and wire sizes
- Page 5 – Table 2: A421 Control wiring terminals and wire size information
- Page 6 – Setup and adjustments; LCD; A421 Control parameter setup menus; Three-button touchpad; Navigating the Basic; Relay status LED; Parameter codes and modes of; Restricting User Adjustment
- Page 7 – Restricted Adjustment mode; Restricting user adjustment
- Page 8 – Basic menu; Parameter codes and modes of operation
- Page 9 – Advanced menu
- Page 10 – Un; Setting the control to
- Page 11 – Troubleshooting procedure
- Page 12 – Repair information
- Page 13 – Ordering information; Table 10: A99 Temperature Sensors selection chart
- Page 14 – Table 11: Accessories
- Page 15 – Table 14: UL conformity declaration information
- Page 16 – North American emissions compliance; United States; • Increase the separation between the equipment and receiver.; Canada
- Page 17 – L'exploitation est autorisée aux deux conditions suivantes :; Single point of contact; For more contact information, refer to
A421 Series Standard Electronic Temperature
Controls Installation Guide
Applications
Important:
Use this A421 Series Electronic
Temperature Control only as an operating control.
Where failure or malfunction of the A421 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 A421
Control.
Important:
Utiliser ce A421 Series Electronic
Temperature Control uniquement en tant que
dispositif de régulation. Lorsqu'une défaillance
ou un dysfonctionnement du A421 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 A421 Control.
Dimensions
Figure 1: A421 Control with Type 1 (NEMA), IP20
enclosure dimensions, in. (mm)
Figure 2: A421 Control with Type 4X (NEMA), IP66
enclosure dimensions, in. (mm)
Parts included
Each A421 Control includes a Johnson Controls
®
or Penn
®
A99 Series temperature sensor. Refer to
Part No. 24-7664-3019 Rev. G
2022-08-25
A421ABC, A421AEC, A421GBF, A421GEF
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About this manual
- Brand
- Penn
- Model
- A421 Series
- Document type
- Installation Manual
- Category
- Thermostat
- Language(s)
- English
- Pages
- 18
- Format
Summary
A99 Series Temperature Sensors The A421 Controls require an A99 sensor, and each A421 Control includes an A99 sensor. Any A99 Series sensor works with the A421 Series Controls. Do not replace an A99 Series sensor with any other brand, series, or type of temperature sensor. See Ordering information f...
and LCD, to bring the electrical connection to the top or bottom of the mounted control. Note: Do not twist the wiring harness between the enclosure base and cover more than 180º. Wiring WARNING Risk of Electric Shock Disconnect or isolate all power supplies before making electrical connections. Mor...
Table 2: A421 Control wiring terminals and wire size information Terminal block Label Description, function, and requirements Wire sizes LN Low-voltage 24 VAC control power (common): Connect the 24 VAC supply power to operate the control. TB1 24 VAC Models 24 V Low-voltage 24 VAC control power (hot)...