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7 Installation
7.1 Wall Mounting the Water Heater
Clearances
When mounting the water heater there is no required clearance to combustibles.
However, it is recommended to maintain a minimum clearance of 6" from the
bottom of the unit to the fl oor in order to allow room for servicing.
Mounting
WARNING: ELECTRIC SHOCK HAZARD
Ensure circuit breakers are off before proceeding with
installation.
1. Remove 2 screws located on the bottom of the cover and remove.
Figure 4
NOTICE: PRODUCT DAMAGE!
BEFORE PROCEEDING TO THE NEXT STEP, it is important
to know there is a wiring harness connected to the
backside of the front cover. This must be disconnected to
fully remove the cover. DO NOT pull cover out and away
completely without disconnecting wiring first or damage
may occur.
2. Pull bottom of cover forward and swing out (pos.1). Lift away from tabs on
the top of the back cover (pos.2). Do not fully remove cover.
Figure 5
Bosch Tronic TR4000C Electric Tankless Water Heaters- BTC 722203301 A (08.2022)
2
1
3. Disconnect wiring harness connected to the inside of the front cover.
Figure 6
4. Remove cover completely.
5. Pass electrical supply wires through the round wire knockout in the back of
the unit. (Figure 7).
6. Choose a suitable mounting surface that is solid and secure.
WARNING: ELECTRIC SHOCK HAZARD
Do not install the unit above electrical boxes or junctions.
Installation Manual
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