Submittal Sheet

Bosch Thermotechnology Corp. reserves the right to make changes without notice due
to continuing engineering and technological advances |
BTC 742008301 E | 10.2014
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Engineering Submittal Sheet
C1050ES
Tankless Water Heater
Bosch Thermotechnology Corp.
Londonderry, NH • Ft. Lauderdale, FL
7 of 7
Water Heating Capacity Curve
Tankless Components
Water Heating Capacity Data
Temperature
Rise °F
Flow Rate GPM
35 10.7
45 8.3
55 6.8
65 5.8
75 5.0
90 4.2
100 3.7
120 3.1
140 2.7
10 20 30 40 50 60 70 80 90
9
10
11
8
12
13
100 110 120 130 140
7
6
4
3
2
1
0
5
Temperature rise (°F)
Flow
Rate
(GPM)
* 35°F capacity is based on installation with a mixing valve to overcome typical pressure loss through the water heater and system.
Components Legend
1 Exhaust temperature sensor
2 Condensing heat exchanger
3Heat exchanger
4 Ionization sensor
5Primary fan (Mixer)
7
LCD display
8
On/Off button
9
Reset button
10
Program button
11
Flue gas limiter
12
Heat exchanger overheat sensor (ECO)
13
Ignition electrodes
14
Observation window
15
Backflow temperature sensor
16
Secondary air fan
17
Gas valve
18
Condensate trap
20
Control unit
21
Up button
22
Down button
23
LED
6
Hot water temperature sensor
19
Water valve with flow & cold water temperature sensors
Bypass valve
Inlet water filter
24
25