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Centerline CDH-EDH Dishwasher Kit Installation guide

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INSTALLATION INSTRUCTIONS
Centerline & Ecoline Incoming Power Wiring Conversion For Door Type High
Temp Machine
CDH AND EDH WIRING CONVERSION
These instructions are only intended for use by properly trained and qualified service technicians.
If you do not have technical training for this product, you should read the following procedure, in its entirety, to
determine if you have the necessary tools, instruments and skills required to perform the procedure. Procedures for
which you do not have the necessary tools, instruments and skills should be performed by a trained Hobart Service
technician.
The reproduction, transfer, sale or other use of this manual, without the express written consent of Hobart Service,
is prohibited.
INCOMING POWER CONVERSIONS COVERED:
240V Wired Machine (Factory Default) to 208V Wired Machine
CDH and EDH 3PH to 1PH Wiring Conversion
240V Wired Machine (Factory Default) to 208V Wired Machine
3TB JUMPER
NOTE: Incoming voltage must be correctly wired for proper transformer function.
NOTE: Follow the Instructions below to convert a 240V wired machine (Factory Default) to a 208V wired machine.
NOTE: Reverse directions below to convert 208V wiring to 240V wiring.
WARNING
Disconnect the electrical power to the machine and follow lockout / tagout procedures.
1. Remove LOWER FRONT PANEL.
2. Loosen/Remove screws on 3TB locations 1, 2 and 3 (1, Fig. 1).
Fig. 1
© HOBART SERVICE 2022 Page 1 of 8 F45912 Rev. A (August 2022)
3. Move jumper (2, ) from 240V position (3TB-1 and 3TB-2) to 208V position (3TB-2 and 3TB-3) (2, Fig. 2).
Fig. 2
4. Reinstall/Tighten screws on 3TB locations 1, 2 and 3 (1, Fig. 2). Tighten all screws to 17.5 in*lbs.
5. Turn on machine and test unit for proper operation.
6. Reinstall any removed panels.
CDH and EDH 3PH to 1PH Wiring Conversion
NOTE: WIRING CHANGES REQUIRED: 1TB Wiring 4TB WIRING BOOSTER HEATER WIRING - JUMPER
BAR
NOTE: Follow the Instructions below to convert a Three (3) Phase (3 Hot + Ground) wired machine (Factory Default)
to a Single (1) Phase (2 Hot + Ground) wired machine.
NOTE: Reverse directions below to convert Single Phase to 3 Phase wiring.
1TB Wiring
WARNING
Disconnect the electrical power to the machine and follow lockout / tagout procedures.
1. Remove LOWER FRONT PANEL.
2. Move wire labeled ‘1TB-1 (3PH) -4 (1PH)' from 1TB-1 (Fig. 3) to 1TB-4 (Fig. 4).
F45912 Rev. A (August 2022) Page 2 of 8
Fig. 3
Fig. 4
3. Move the two wires labeled ‘1TB-5 (3PH) -2 (1PH)' from 1TB-5 (Fig. 5) to 1TB-2 (Fig. 6).
Page 3 of 8 F45912 Rev. A (August 2022)
Fig. 5
Fig. 6
4. Move the wire labeled ‘1TB-5 (3PH) -1 (1PH)' from 1TB-5 (Fig. 7) to 1TB-1 (Fig. 8).
F45912 Rev. A (August 2022) Page 4 of 8
Fig. 7
Fig. 8
5. Contrinue to 4TB wiring.
4TB WIRING
1. Loosen screws at 4TB-5 and 4TB-GND.
2. Move wire from 4TB-5 (3PH) (Fig. 9) to 4TB-GND (1PH) (Fig. 10).
3. Tighten screws at 4TB-5 and 4TB-GND. Tighten screws to 17.5 in*lbs.
Page 5 of 8 F45912 Rev. A (August 2022)
Fig. 9
Fig. 10
4. Contrinue to Booster Heater Wiring - Jumper Bar.
BOOSTER HEATER WIRING - JUMPER BAR
1. Remove red cover used for protecting the booster heater connections.
2. Remove the nuts currently clamping down wire and jumper bar at wire labeled ‘BSTR-HTR2’ (Terminal C) and
bar connection to Terminal A (Fig. 12).
F45912 Rev. A (August 2022) Page 6 of 8
Fig. 11
Fig. 12
3. Remove Wire labeled ‘BSTR-HTR2’ from Terminal C.
4. Remove jumper bar connecting Terminal C and Terminal A.
5. Reattach Wire and Nut labeled ‘BSTR-HTR2’ to Terminal C that it was previously attached to (Fig. 14).
NOTE: Tighten nut to 16 in*lbs. Use 7 mm wrench to hold back nut when tightening.
Fig. 13
Fig. 14
6. Remove nut and wire labeled ‘BSTR-HTR1’ currently housed on Terminal B (Fig. 12).
7. Install jumper bar to connect Terminal A (where jumper bar was previously attached) and Terminal B (where
wire labeled ‘BSTR-HTR1’ was previously attached). Have the slotted side of the jumper bar facing out (Fig.
15).
Page 7 of 8 F45912 Rev. A (August 2022)
Fig. 15 Fig. 16
8. Reattach nut clamping down jumper bar at Terminal A (Fig. 14).
NOTE: Verify distances between both jumper bars. There MUST be a minimum 1.6mm (1/16") gap (Fig. 16). Use
stainless steel BOOSTER HEATER GAUGE provided in new machine documentation package. Gauge should slide
freely between jumper bars. If gauge is not present, 1/16" allen wrench may be used as gauge.
NOTE: Tighten nut to 16 in*lbs. Use 7 mm wrench to hold back nut when tightening.
9. Reattach wire labeled ‘BSTR-HTR1’ and nut at Terminal B where previously attached (Fig. 14).
NOTE: Tighten nut to 16 in*lbs. Use 7 mm wrench to hold back nut when tightening.
10. Reattach the red cover used for protecting the booster heater connections.
11. Test unit for proper operation.
12. Reinstal any removed panels and place into service.
F45912 Rev. A (August 2022) Page 8 of 8
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