Instruction/ maintenance manual of the product TR21 Honeywell
Go to page of 8
INST ALLATION INSTRUCTIONS 62-0267-09 TR21, TR22, TR23, and TR24 W all Modules FEA TURES The TR21, TR 22, TR23, and TR24 family of wall modules include: • Models wit h setpoint a djustment. • Models wit h humidity output. • Models with occupi ed/unoccupie d override (b yp ass) with LED.
TR21, TR22, TR 23, AND TR24 WALL MODULES 62-0267—09 2 Fig. 1. T emperature vs. Resistance for Nonlinear Sensor . Communications All wall modules (except the TR21 and TR21-A models) have a L ON M ARK ® bus communica tions port.
TR21, TR22, TR23, AND TR24 WALL MODULES 3 62-0267—09 Fig. 4. W all Module Subbase Dime nsions in In ches (mm) and T emperature Limit Set Screw Loca tions (TR23 Shown). Cover Disassembly A snap-fit locking mechanism is used to attach the cover of the wall module to its subbase.
TR21, TR22, TR 23, AND TR24 WALL MODULES 62-0267—09 4 Wiring and DIP switch settings: See T able 1 to determin e DIP switch posit ions and terminal usage for each controller .
TR21, TR22, TR23, AND TR24 WALL MODULES 5 62-0267—09 TR22 and TR23 Setpoint Adjustment For the TR22 and TR23 Wall Modules with a setpoint adjustment, the controller must be programmed for the val ues in T able 2 and T able 3. TR23-KL and TR23-H-KL The TR23-KL and TR23-H-KL ship in packs of 20 and are supplied without se tpoint adjustment knobs.
TR21, TR22, TR 23, AND TR24 WALL MODULES 62-0267—09 6 Fig. 7. Ove rride pushb utton opera tion. When Used With Excel 600/500/100/80/50 Controllers: The application engineer/programmer can program the override (bypass) and LED to operate in any manner desired.
TR21, TR22, TR23, AND TR24 WALL MODULES 7 62-0267—09.
TR21, TR22, TR 23, AND TR24 WALL MODULES Automation and Co ntrol Solutions Honeywell Internationa l Inc. Honeywell Limited-Hon eywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Toronto, Ontario M1V 4Z9 customer.honeywell.
An important point after buying a device Honeywell TR21 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Honeywell TR21 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Honeywell TR21 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Honeywell TR21 you will learn all the available features of the product, as well as information on its operation. The information that you get Honeywell TR21 will certainly help you make a decision on the purchase.
If you already are a holder of Honeywell TR21, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Honeywell TR21.
However, one of the most important roles played by the user manual is to help in solving problems with Honeywell TR21. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Honeywell TR21 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
