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Honeywell TR21 - page 1
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. • Models with 3-position (auto/0/1) or 5 -position (au ...
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Honeywell TR21 - page 2
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. If needed, the jack plug must be removed in the fiel d, and terminals 3 and 4 wired according to the in stallation instr ...
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Honeywell TR21 - page 3
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. T o disassemble the cover from the subbase: 1. Insert a thin, flat bla ...
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Honeywell TR21 - page 4
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 . T able 1. DIP Switc h Settings and T ermin al Connections. Controller Mo del(s) TR23-TR24 DIP Swit ch Settings TR22-TR24 T ermina l Connections No fan switching from sensor ...
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Honeywell TR21 - page 5
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. K ...
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Honeywell TR21 - page 6
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. The override (bypass) input is a dry contact, normally open, momentary digital input whe ...
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Honeywell TR21 - page 7
TR21, TR22, TR23, AND TR24 WALL MODULES 7 62-0267—09 ...
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Honeywell TR21 - page 8
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.com ® U.S. Registered T rademark © 2009 Honeywell Internationa l Inc. 62-0267—09 E.K. Rev . 0 ...
