Bosch C1210ES Specifications download pdf (Page 35)

Operation instructions | 35

6 720 644 887 (2014/11)C 1210 ES/ESC

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).

Solar mode

The water heater will not ignite if inlet water temperature exceeds the set

point temperature - 9 °F (5 °C). In this condition, the solar mode

indicator will show on the LCD display. See fig. 53, page 34.

Fig. 57

6.5 Use of optional remote control accessory (part no.

TSTAT2)

Fig. 58 Remote control

The wireless remote control accessory (Fig.83, component 13) and the

temperature selector buttons on the front of the water heater operate

identically. Contact your distributor to order the remote control

accessory. Modification of the water heaters interior control unit

(Fig.83, component 16) is required when installing the remote control

with this heater.

6.6 Operation

▶ When a hot water tap is opened, main burner ignites and LCD

displays indication .

Fig. 59

▶ LCD flashes until selected temperature is reached.

▶ Power bar indicates power percentage in use.

6.7 Reset button

If the LCD shows the error symbol do not shut off power or unplug

the heater. Follow instructions below to reset error first.

Record the error code on LCD and consult “Problem solving” chapter

9.1, page 44.

Fig. 60

Solar mode activation formula Example:

Temp. inlet > Temp. set - 9 °F

(5 °C)

104 °F (40 °C) > 112 °F (44 °C) -

9 °F (5 °C)

Table 32

WARNING:

▶ 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.

NOTE: up to 6 remote controls can be programmed for

one single water heater, each with a range distance of 98

ft (30 m).

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Bosch C1210ES Specifications Page 35

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