Danfoss Heavy Duty Installation guide
Installation guide
Heavy Duty
Uninstall/install display of Heavy Duty GD unit
Disassembly
1
148R9656
• Ensure gas-free environment
• Disconnect from voltage
• Loosen fixation screw pos. 1
• Unscrew cover and open it
• Carefully push the white retaining bracket upwards (pos. 1) and
lift the display board slightly
• Take the board left and right (pos. 2) with two fingers (NOT BY
THE FOIL) and take it out carefully.
• Put the display board in a dry, clean and protected place.
Pay attention to ElectroStatic Discharge (ESD)!
148R9656
1
Figure 1: GDA Heavy Duty with cover
1
2
2
Assembly
2
• Hold the display PCB horizontally above the transmitter circuit
board, so that it fits with the hole in the mandrel of the white
retaining bracket (pos. 1) and with the two aluminium (pos. 2)
slots in the guide brackets
© Danfoss | DCS (ms) | 2021.01
Figure 2: Disassembly of the display PCB
1
2
2
Figure 3: Reference positions for display board
AN365828467437en-000101| 1
• Plug the 4-pin female connector strip of the display into the
4-pin male connector strip of the PR-board
Figure 4: Assembly of the display PCB
1
• Press evenly and gently until the retaining
bracket clicks into place
• Display board must snap into place with the
spacer and the the two aluminium (pos. 2)
slots in the guide brackets
• Close cover
• Tighten fixation screw pos. 1
• Connect to voltage
• Wait until the LED is green
2
Click
2
Figure 5: Clicking-in of the display PCB Figure 6: Assembled display PCB
1
Figure 7: GDA Heavy Duty with cover
If the display is not powered when the voltage is connected again, please restart from point 1. Most likely there is no issue with the
display but a missing connection of the PIN’s. This can happen whilst assembling the display show in figure 4.
Check the PIN’s on the board before clicking on the display board the second time, see Fig. 4.
© Danfoss | DCS (ms) | 2021.01
AN365828467437en-000101 | 2
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