TR21 Installation Manual & Owner's Guide

Description

TR21 Installation Manual, It is necessary to configure the programmable comfort control thermostat before starting its work. This will further ensure continuous and correct operation of the TR21 Installation Manual. Study the owner's guide in English.

Honeywell TR21 Q & A

What type of temperature sensor does the Honeywell TR21 controller use?

• All models are furnished with a 20K Ohm non-linear NTC temperature sensor that follows a specific temperature resistance curve. See Fig. 1. Honeywell controllers used with the TR21, TR22, TR23, and TR24 models employ an algorithm that provides readings close to the actual temperature.

What are the features of the Tr21 wall modules?

• FEATURES The TR21, TR22, TR23, and TR24 family of wall modules include: • Models with setpoint adjustment. • Models with occupied/unoccupied override (bypass) with LED. • Models with 3-position (auto/0/1) or 5-position (auto/0/1/2/3 speed) fan switch.

What is a TR22 temperature setpoint dial?

• Models (TR22 and TR23) with user-selectable temperature setpoint dials in Fahrenheit, Celsius, and Relative (- to +). Models: For specific model information, see TR21, TR22, TR23, and TR24 Wall Modules – Specification Data, form 63-1321. Operating Temperature: 45° to 99° F (7° to 37° C). Shipping Temperature: -40° to 150° F (-40° to 65.5° C).

What is a TR22 model?

• • Models (TR22 and TR23) with user-selectable temperature setpoint dials in Fahrenheit, Celsius, and Relative (- to +). SPECIFICATIONS

Honeywell Global

Honeywell International Inc. is an American publicly traded, multinational conglomerate headquartered in Charlotte, North Carolina. It primarily operates in four areas of business: aerospace, building technologies, performance materials and technologies (PMT), and safety and productivity solutions (SPS).[3] Honeywell is a Fortune 100 company, ranked 92nd in 2019.[4] The company has a global workforce of approximately 110,000 workers, with approximately 44,000 employed in the United States.[5][6] The current chairman and chief executive officer (CEO) is Darius Adamczyk.[7]

The company's current name, Honeywell International Inc., is the product of a merger of Honeywell Inc. by acquisition to AlliedSignal during 1999. The company headquarters were consolidated with AlliedSignal's headquarters in Morristown, New Jersey; however, the combined company chose the name "Honeywell" because of the considerable brand recognition.[8] Honeywell was a component of the Dow Jones Industrial Average index from 1999 to 2008. Prior to 1999, its corporate predecessors were included dating back to 1925, including early entrants in the computing and thermostat industries.[9][10] In 2020, Honeywell rejoined the Dow Jones Industrial Average index[11] and the following year moved its stock listing from the New York Stock Exchange to the Nasdaq