Installation and Operating Instructions
Bosch GreenTronic 7000 T Hybrid Electric Water Heater - BTC 755003301 A (03.2024)
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6.2.2 Turning on the Water Heater
NOTICE
Product damage!
• Before supplying power to the water heater make sure the water heater
is filled with water! Damage caused by dry fire will not be covered by
warranty.
To turn on the water heater supply power to the unit and press the on/off button.
The water heater will not supply hot water instantly. Depending on the operation
conditions and the selected mode and temperature the unit might need up to 1 day
to reach target state.
6.2.3 Selecting Operation Mode
The water heater has 5 operation modes. Economy is the default operation mode.
To change the operation mode, press the Mode button as often as needed to reach
preferred operation mode. New operation mode will be saved immediately. The
Hybrid mode and the E-Heater mode expire after 72 hours, the water heater will
automatically switch to Economy mode after expiration. Refer to below table for
more details.
Operation Mode Efciency Recovery Remarks
VACATION N/A N/A
Vacation mode will put the water heater
to target set temperature of 59 F to pro-
tect the water heater while not use for
the length of the selected days (1 – 360
days). Further details in chapter 6.2.5.
HYBRID Low High
Hybrid mode utilizes the heat pump and
the electric heating elements to heat up
the water. Efciency is lower and the wa-
ter heats up faster compared to economy
mode. Only active for 72 hours.
E-HEATER Very Low Very High
E-Heater only utilizes the electric heating
elements to heat up the water. It is the
least economic mode but is the fastest
way to heat up the water in the water
heater tank. Only active for 72 hours.
ECONOMY High Low
Economy mode utilizes the heat pump
and the electric heating elements to
heat up the water. It’s the default mode.
Efciency is high while it takes longer to
heat up the water.
HEAT PUMP Very High Very Low
Heat pump mode only utilizes the heat
pump to heat up the water. It is the most
efcient way to heat up the water but
also takes the longest.
Table 16 Operation modes
6.2.4 Water Temperature Setting
DANGER
Scald hazard!
• There is a hot water scald potential if the thermostat is set too high.
Households with small children, disabled, or elderly persons may require
a 120°F (49°C) or lower thermostat setting to prevent contact with HOT
water.
The temperature of the water in the water heater can be selected between 109 -
149 °F (43 - 65 °C). Safety and energy conservation are factors to be considered
when selecting the water temperature setting of the water heater. The lower the
temperature setting, the greater the savings in energy and operating costs.
To comply with safety regulations the temperature is factory set at 120°F (49°C)
for US models and 140°F (60°C) for Canadian models. Temperature set point may
need to be changed depending on local code requirements. Water temperature
above 125°F (52°C) can cause severe burns or death from scalding. Be sure to read
and follow the warnings outlined in this manual and on the label on the outside of
the water heater.
Mixing valves are recommended for reducing point of use water temperature by
mixing hot and cold water in branch water lines. It is recommended that a mixing
valve complying with the Standard for Temperature Actuated Mixing Valves for Hot
Water Distribution Systems, ASSE 1017 be installed. Contact a licensed plumber
or the local plumbing authority for further information.
When used in demand response applications a thermostatic mixing valve
conforming to ASSE 1017 shall be installed on the hot water supply line following
all manufacturer installation instructions.
To set a new temperature for the water heater, press the up or down button, to
increase or decrease the temperature in 1-degree steps. The new temperature will
be saved immediately.
Figure 11