Instruction/ maintenance manual of the product AT140A Honeywell
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INST ALLA TION INSTRUCTIONS 69-0251- 3 A T120A, A T140A, A T150A, A T175A Universal T ransformers APPLICATION These transfo rmers are for use in 24 V ac nominal contro l circuits. They are typically used in heating/cooling co ntrol systems but can be used in any application that d oes not exceed th e load rat ings.
A T120A, A T140A, A T150A, A T175A UN IVERSAL T RANSFOR MERS 69-0251-3 2 Mounting The transfor mer can be mo unted in one of three ways: — foot mount ing. — plate mounting . — mounting th rough outlet box knockout hole. Foot Mounting 1. Mount th e transfo rmer usin g screws (not supp lied) through t he four 3/16 in.
A T120A, AT140A, A T150A, A T 175A UNIVERSA L T RANSFORM ERS 3 69-0251-3 Fig. 3. When screw is tig htened, clamp ho lds plate on tr ansforme r . MOUNTING PLATE AT L AMINATIONS 1. Remove th e large rec tangu lar knockou t in the mounting plate as sho wn in Fig.
A T120A, A T140A, A T150A, A T175A UN IVERSAL T RANSFOR MERS Automation and Cont rol Solution s Honeywell Internatio nal Inc. Honeywell Limited-H oneywell Limitée 1985 Douglas Dr ive North 35 Dynamic Drive Golden Valley, MN 55422 Scarborough , Ontario M1V 4 Z9 customer.
An important point after buying a device Honeywell AT140A (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 AT140A 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 AT140A - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Honeywell AT140A you will learn all the available features of the product, as well as information on its operation. The information that you get Honeywell AT140A will certainly help you make a decision on the purchase.
If you already are a holder of Honeywell AT140A, 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 AT140A.
However, one of the most important roles played by the user manual is to help in solving problems with Honeywell AT140A. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Honeywell AT140A 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
