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Full Text of Manual:<\/strong><\/p>\n Honeywell AT120A. AT140A, AT150A, AT175A UNIVERSAL TRANSFORMERS Download PDF Manual: Honeywell AT140A1000 40Va, 120V Transformer – 60 Hz.pdf Full Text of Manual: Honeywell AT120A,AT140A,AT150A,AT175A Universal Transformers APPLICATION These transformers are for use in 24 Vac nominal control circuits. They are typically used in heating\/cooling control systems but can be used in any application that does not exceed the load ratings. They meet … Continue reading “Honeywell AT140A1000 40Va, 120V Transformer – 60 Hz.”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-155","post","type-post","status-publish","format-standard","hentry","category-user-manual"],"_links":{"self":[{"href":"https:\/\/www.twistidea.com\/manual\/wp-json\/wp\/v2\/posts\/155","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.twistidea.com\/manual\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.twistidea.com\/manual\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.twistidea.com\/manual\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.twistidea.com\/manual\/wp-json\/wp\/v2\/comments?post=155"}],"version-history":[{"count":1,"href":"https:\/\/www.twistidea.com\/manual\/wp-json\/wp\/v2\/posts\/155\/revisions"}],"predecessor-version":[{"id":160,"href":"https:\/\/www.twistidea.com\/manual\/wp-json\/wp\/v2\/posts\/155\/revisions\/160"}],"wp:attachment":[{"href":"https:\/\/www.twistidea.com\/manual\/wp-json\/wp\/v2\/media?parent=155"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.twistidea.com\/manual\/wp-json\/wp\/v2\/categories?post=155"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.twistidea.com\/manual\/wp-json\/wp\/v2\/tags?post=155"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nAT120A,AT140A,AT150A,AT175A
\nUniversal Transformers
\nAPPLICATION
\nThese transformers are for use in 24 Vac nominal control
\ncircuits. They are typically used in heating\/cooling control
\nsystems but can be used in any application that does not
\nexceed the load ratings. They meet National Electrical
\nINS1f’ALLAiTl\u00a9N INSTRlUC1il\u00a9NS
\nCode Class 2 “not wet” and Class 3 “wet” requirements
\nand are Underwriters Laboratories (UL} Inc. listed under
\nUL 1585. They can be mounted through a 7\/8 in. knockout
\non the accessory mounting plate (included}, or with
\nthe integral mounting feet. See Table 1 for additional
\nspecifications.
\nTable 1. Model Specifications.
\nPrimary
\nI
\nInput
\nModel
\nI
\nVoltage Wiring Open
\nNumber (60Hz) Connections Circuit
\nAT120A \\ 120\/208\/ 9 in. leads 27.0
\n240
\nAT140A 120 9 in. leads 27.0
\n120\/208\/
\n240
\n120\/240
\n208\/240
\nAT150A 120\/208\/ 9 in. leads 27.5
\n240
\nAT175A 120\/208\/ 9 in. leads 27.5
\n240
\nINSTALLATION
\nWhen Installing this Product …
\n1. Read these instructions carefully. Failure to follow
\nthem could damage the product or cause a hazardous
\ncondition.
\n2. Check the ratings given in the instructions and on
\nthe product to make sure the product is suitable for
\nyour application.
\n3. Installer must be a trained, experienced service
\ntechnician.
\nSecondary
\nVoltage
\nAt Rated Output Rating at
\nPower Wiring 100 Percent Power
\nOutput connections Factor
\n24.0 Screw 20VA
\nterminals
\n24.0 Screw 40VA
\nterminals
\n24.0 Screw SOVA
\nterminals
\n24.0 Screw 75VA
\nterminals
\n4. After installation is complete, check out product
\noperation as provided in these instructions.
\n,iLCAUTION
\nElectrical Hazard.
\nCan cause electrical shock or equipment
\ndamage.
\nDisconnect power supply before beginning
\ninstallation.<\/p>\n
\nMounting
\nThe transformer can be mounted in one of three ways:
\n– foot mounting.
\n– plate mounting.
\n– mounting through outlet box knockout hole.
\nFoot Mounting
\n1. Mount the transformer using screws (not supplied}
\nthrough the four 3\/16 in. x 3\/8 in. holes in the
\nmounting feet. . . .
\n2. Make line voltage primary connections w1th1n an
\napproved enclosure. See Fig. 1.
\n3. Discard the mounting plate.
\nMOUNTING
\nFOOT(2)~
\nFig. 1. Foot mounting.
\nPlate Mounting
\nMOUNTING PLATE TO lRANSFORMER
\nMount the plate to the transformer in either of two
\npositions (see Fig. 2):
\n\u2022 at clamp on primary end bell.
\n\u2022 at laminations.
\n69-0251-3
\nPLATE MOUNTED AT CLAMP ON PRIMARY END BELL
\nMOUITTING PLATE
\nlEADWIRES
\nFORPRIMAR.y
\nCONNECTIONS
\nSCREW
\nTERMINALS FOR
\nSECONDARY
\nCONNECTTONS
\n‘- RAISEOPORTIONOF
\nLARGE CENTER KNOO<OUT
\nPLATE MOUNTED AT THE LAMINATIONS
\n&. MOUNTINGFEETON”A”MOOELSONLY.
\nFig. 2. Mounting plate to transformer in either
\nof two positions.
\nMOUNTING PLATE AT CLAMP ON PRIMARY END BELL
\n1 Turn the screw on the clamp almost all the way out.
\n2. Hold the mounting plate with the keyhole slots up
\n. and the raised portion of the large center knockout
\nthread the primary leadwires
\n. through the round center hole in the plate.
\nFit the clamp and screw through the round hole. !: While holding the plate in place<\/p>\n","protected":false},"excerpt":{"rendered":"