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Position Of The Fuses In Control Unit; Operation Instructions - Bosch Greentherm T9900 SE 160 Installation And Operating Instructions Manual

Indoor residential tankless water heaters, 160 000/199 000 btu- natural gas 160 000/199 000 btu - liquefied petroleum lp gas
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Operation instructions

Fig. 36
Connecting power supply cord
[1] Power cord length: 5.9 ft (1.8m).
Note: The power supply that the appliance is plugged into
should be isolated from possible water damage. Observe
proper clearance to avoid damages.
5.2

Position of the fuses in control unit

To check the fuse, proceed as follows:
▶ Disconnect the appliance from the power supply before
removing the front cover.
▶ Remove the front cover, see fig. 3, page 12.
▶ Disconnect all the cables from the control unit.
▶ Press the four snaps of the control unit and remove the
cover.
Fig. 37
Control Unit
▶ Press the four snaps inside the control unit and remove the
PCB.
44
▶ Check the fuse in the printed circuit board, for electrical
continuity, see fig. 38, [1].
Fig. 38
Fuse position
[1] Fuse
▶ After checking the fuse, reinstall all parts in reverse order.
6
Operation instructions
7
6
5
4
Fig. 39
Touch control display
[1] LCD display
[2] Up button
[3] Down button
[4] On/Off button
[5] Confirmation button
[6] Return button
[7] Burner status / Error symbol
NOTICE:
▶ Wipe down with a damp cloth. Do not use any aggressive or
corrosive cleaning agents to clean the window.
Greentherm T9900 SE/i – 6 720 813 635 (2019/03)
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6720813761-03.1V

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Greentherm t9900 se 199Greentherm t9900 se/i 199