Installation; Tools Needed; Preparation; Removing Control Unit - Bosch C1050ES Installation Instructions

Installation

1 Installation
Note: For commercial applications the
i
heat exchanger warranty is 2 years, from
date of original installation and operation.
For more details consult the water
heater's installation manual for warranty
period.
1.1

Tools needed:

• Phillips head screw driver
• Needle-nosed pliers.
Note: Avoid touching printed circuit board
i
as static discharge may damage circuitry.
1.2

Preparation

B Push power button to "OFF" and unplug power cord.
B Loosen two Phillips head screws on bottom rear of
front cover. Pull cover bottom outwards then lift
cover upwards to remove.
1.3

Removing control unit

B Remove three Phillips screws on front of control unit.
(Fig. 1, pos.1).
B Turn control unit to expose the rear. (Fig. 2, pos. 2).
1
Fig. 1 Control unit front
2
B Remove rear cover from control unit to expose circuit
board electrical connections. (Fig. 2).
Fig. 2
Fig. 3
1
1
6720680201-01.1US
Control unit rear (wiring not shown for clarity
purposes)
6720680201-08.1US
6720680201-09.1US
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