Submittal Sheet

Engineering
Submittal
Sheet
Bosch Thermotechnology Corp. reserves the right to make changes without notice due
to continuing engineering and technological advances |
BTC 741008301 E | 10.2014
Tel: [phone] Fax: [phone] www.bosch-climate.us
C1210ESC
Tankless Water Heater
Bosch Thermotechnology Corp.
Londonderry, NH • Ft. Lauderdale, FL
1 of 7
Engineering Specifi cations
Water heater shall be a Model Therm C 1210 ESC. Plant shall
consist of ___Model Therm C 1210 ESC NG/LP tankless water
heaters as manufactured by Bosch Thermotechnology Corp.
Heater shall be CSA/ANSI Z21.10.3 listed. Heater shall have an
input of 225 MBH with a gross output of 211 MBH when fi red
with natural gas. Unit shall operate with a minimum of 94% ANSI
Z-21 effi ciency. Tankless water heater shall have a recovery of
329 gallons per hour at a 77°F temperature rise. Tankless water
heater shall have Low NOx emissions and is 2012 SCAQMD NOx
certifi ed to rule 1146.2.
CONSTRUCTION
Water heater shall be gas fi red, condensing tankless design with
a modulating power burner and negative pressure gas valve.
Burner shall be capable of 9:1 turndown of fi ring, without loss
of combustion effi ciency. Primary heat exchanger/combustion
chamber shall incorporate a multi pass copper tube and
fi n design with internal turbulators. Secondary condensing
heat exchanger shall incorporate a multi-pass aluminum heat
exchanger of fi n tube design with copper water path to
prevent galvanic corrosion. Heat exchangers shall be rated for
maximum working pressure not less than 150 psig. Exhaust
outlet connector shall be of corrosion resistant metal, with a 3”
diameter fl ue connection.
The water heater control system shall be a single printed circuit
board in water-resistant plastic enclosure. The entire system
shall be Underwriters Laboratories approved.
The control system shall contain: embedded control board
incorporating LCD display to read temperature, and tactile
buttons for output power, temperature, and programming
control; CPU board which houses all control functions; power
transformer; ignition spark module; and unique connections
for each sensor or component. The control board shall be
fi eld replaceable. The combustion safeguard/fl ame monitoring
system shall utilize spark ignition and a rectifi cation type fl ame
sensor. The control panel hardware shall support wireless
Overview and Certifi cations
Massachusetts
Plumbing Board
Approved
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