Preparation & Existing Transformer Removal for All ATevos:
- Shut down and lock out all power to ATevo.
- Allow internal voltage potentials (and heat) to dissipate.
- Remove safety shield.
- Disconnect battery from DC Output Circuit Breaker (CB2+/-).
- Check with a voltmeter before proceeding, including any installed remote sense wires.
Transformer Removal
- Remove enclosure shroud.
- Disconnect Transformer (T1) wires at Power Board lugs (A2-X1 and A2-X4).
- Disconnect T1-Y1 and T1-Y2 transformer wires at Power Board (A2) terminal block.
- Disconnect MOV Board (A9) from H1 and H5 primary leads, by removing two (2) screws that connect H1 and H5 lugs to MOV Board (A9).
- Disconnect H1 and H5 primary wires from AC Input Breaker (CB1).
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Transformer (T1) is extremely heavy. Be prepared to support its weight before proceeding. |
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- Remove hardware at corners of transformer mounting plate.
- Carefully lift transformer off and out of enclosure.
New Transformer Installation:
- Position new transformer in same orientation existing, making sure mounting holes in plate align with holes in enclosure.
- Reinstall hardware in corners of transformer mounting plate.
- Route H1 and H5 primary wires to AC Circuit Breaker (CB1), making sure lugs for MOV connection align with bolt holes in MOV board (A9).
- Install two (2) screws through lugs that connect MOV Board (A9) to primary wires, and tighten nuts.
- Insert ends of H1 and H5 primary wires into AC Input Breaker (CB1), and tighten compression lugs.
- Route X1 and X4 secondary wires from transformer to X1 and X4 lugs on Power Board.
- Insert wires into lugs and tighten lugs.
- Route Y1 and Y2 wires from transformer to terminal block on Power Board (A2).
- Install wires into terminal block and tighten screws.
- Replace safety shield, and close front panel door.
- Restart ATevo.
Last modified:
12 September 2023