Instruction/ maintenance manual of the product 7ACTB Emerson
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381333–136 C 50 Hanove r Road, F lorham Park, New J ersey 07932–1591 USA For sales or service call 1 800 800–2726 (A SCO ) www.ascopower .com AS CO PO WER TECH NO LOGI E S CA NA DA PO Box 1238, .
SECT ION 1 INST ALLA TION 1 --- 1 The ASCO 7000 Se ries A ut omatic Closed–T ransiti on T ransfer & Bypass–Isolation Switch ( ACTB) consists of an upper bypass–i solatio n sw it ch, a transfer swit ch, a monitoring and transfer control ler, and door–mounted controls.
INST ALLA TION (cont inued) 1 --- 2 De–energ ize the conductors b efo re m aking a ny line or a uxiliary circuitry co nnections. Be sure that Norma l and Emergency line co nnections are in prop er phase rota tion. Pla ce engine gen - erator sta rting control in the OFF position.
INST ALLATIO N (continued) 1 --- 3 RED RED GREEN GREEN obse rve these li ghts RED RED RED Figure 1- 3. Standard controls and i ndicators. F unctio nal T est R ead all instruc tions on the W irin g Diagrams and label s affi xed to t he A CT B. Note the control features tha t are provided and r eview their operation before pro ceeding.
INST ALLA TION (cont inued) 1 --- 4 RED RED GREEN GREEN obse rve these li ghts RED RED RED oper at e this s w itch Figure 1- 4. Standard controls and i ndicators. 2 – Electrica l Op eratio n Th i s pro ced ur e che cks e le ctr i cal op er at i on o f t he A T S.
SECT ION 2 TEST ING & SERVICE 2- -1 TRA NS FE R TEST T est the A utom atic Closed –T ran sition T ransf er Switc h portion of t he 7000 Series ACTB at least once a month. This proc edure chec ks the elec trical oper ation of the T ransfer Switc h and Control P anel.
TEST ING & SERVICE (continued) 2- -2 TROUBL E-SHOOTING Note any opti onal accessories that may be furnished on the ACTB and review their operation. R efer to any sepa- rate draw ings an d/or instr uction s that may be p acked with the A CTB. T abl e 2-1.
SECTION 3 B YP ASS ING & ISOLA TING 3 --- 1 BY PA S S I N G T H E A T S * This pr ocedu re expl ains h ow to Byp ass the c los ed autom atic transfer sw itch contac ts.
B YP AS SING & ISOLA TING (continued) 3 --- 2 ISOLATING THE A TS Isolating is required before any service work can be perform ed on the automatic trans fer switch ( A TS). R efer to Figures 3–4, 3–5, 3–6, and 3–7. 1. Bypass t he closed automatic trans fer switch c ontacts.
B YP AS SING & ISOLA TING (continued) 3 --- 3 RETURN TO SERVI CE This proc edure explain s how to r eturn the automatic tr an sf er s wi tch ( A T S ) to s er vi ce a f te r i ns pe cti o n and maintena nce. Observe t he Byp ass Sw itch P osition in dica- tor and lights).
B YP AS SING & ISOLA TING (continued) 3 --- 4 RETURN TO SERVI CE cont inued* This proc edure exp lains how to return the Bypass Switc h Hand le to the OPEN position . Th e Bypass Handl e must be i n the CLOSED positi on (yellow indicator on NOR - MAL or EMERGENCY ) and the Is olation Handl e must be in t he TEST posi tion (window).
INDEX Printed in U .S.A . Copy right ASCO Power T echnologies, L.P . 2007 A Alarm R eset pushbutton, 1–4, 2–2 auxil iary cir cuits, 1 –2 B bus connections, 1–2 bypassing t he A TS, 3–1 C cat.
An important point after buying a device Emerson 7ACTB (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Emerson 7ACTB 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 Emerson 7ACTB - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Emerson 7ACTB you will learn all the available features of the product, as well as information on its operation. The information that you get Emerson 7ACTB will certainly help you make a decision on the purchase.
If you already are a holder of Emerson 7ACTB, 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 Emerson 7ACTB.
However, one of the most important roles played by the user manual is to help in solving problems with Emerson 7ACTB. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Emerson 7ACTB 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
