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For Your Safety Read Before Operating Your Water Heater; Power; Temperature Selection - Bosch C 950 Installation Manual

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Fig. 59 Activation water flow (see chapter 12)
6.2
For your safety read before operating your water
heater
WARNING: Explosion hazard!
▶ If you do not follow these instructions exactly, a fire
or explosion may result causing property damage,
personal injury or loss of life.
A. This appliance is equipped with electronic ignition for lighting the
main burner. When turning the heater on, follow these instructions
exactly.
WHAT TO DO IF YOU SMELL GAS
▶ Turn off the gas shut-off valve.
▶ Open windows and doors.
▶ Do not try to light the appliance.
▶ Do not touch any electrical switch, telephone, and do not use outlets.
▶ Extinguish all open flames. Do not smoke! Do not use lighters!
▶ Warn all occupants of the building. Do not ring doorbells!
▶ If you can hear gas leaking, leave the building immediately.
▶ Prevent others from entering the building and notify the police and
fire department from outside the building.
▶ From outside the building, call the gas utility company and a trained
and certified installer.
B. Use only your hand to press the on/off control switch. Never use tools.
If control switch is jammed, close the gas supply and call a qualified
service technician. Forceful repair may result in a fire or explosion.
C. Do not use this appliance if any part has been under water.
Immediately call a qualified service technician to inspect the appliance
and to replace any part of the control system and any gas control which
has been under water.
6.3

Power

On
▶ To start the appliance press the On/Off button.
Fig. 60
Off
▶ To shut down the appliance press the On/Off button again.
6.4

Temperature selection

To select hot water temperature:
Greentherm
+
▶ Press buttons
or
in order to reach desired temperature.
Fig. 61
Setting the water temperature
The desired temperature of the hot water can be adjusted on the front
control panel of the heater.
The water heater has an electronically controlled gas valve that
modulates the burner input in response to both varying hot water flow
rates and/or changes in any incoming and outgoing water temperatures.
Note: The water heater, running at minimum BTU, may still achieve
temperatures above the desired set temperature. Low flowing fixtures
are the leading cause of this type of temperature overshoot. To combat
this symptom, clean fixtures or replace with higher flowing ones if
necessary.
Saving water resources:
▶ Make sure you close all the taps after any use. Avoid leaving the taps
dripping. Repair any leaking tap.
▶ Define the temperature you want, in the appliance or with the remote
control. This way you have the precise water flow needed (mixing
cold water to regulate temperature will increase the water flow with
consequent waste of water).
The water heater will not ignite if inlet water temperature exceeds the set
point temperature less 9 °F (5 °C). In this condition, the solar mode
indicator will show on the LCD display. See fig. 57, page 38.
Solar mode activation formula
Temp. inlet > Temp. set - 9 °F
(5 °C)
Table 46
NOTICE: Appliance damage!
▶ In applications where inlet water temperature can
exceed 140°F (60ºC), a thermostatic or mixing valve
must be installed before the appliance to prevent
water exceeding 140°F (60°C) from entering the
appliance.
Operation instructions | 39
Example:
104 °F (40 °C) > 112 °F (44 °C) -
9 °F (5 °C)
6 720 805 440 (2014/11)

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This manual is also suitable for:

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