Bosch GWH C 920 ES - Appliance Details

6 720 608 836
4
Appliance details
FCC:
This device complies with Part 15 of the FCC rules.
Operation is subject to the following two conditions: (1)
This device may not cause harmful interference, and (2)
this device must accept any interference received,
including interference that may cause undesired
operation.
Fig. 1
2 Appliance details
2.1 Features
Residential/commercial models
• GWH C 920 ES residential model
– maximum temperature 140° F
• GWH C 920 ESC commercial model
– maximum temperature 180° F
Parts
• Key pad interface control
• High power pre-mix compact burner with low NOx
emissions
• Modulating gas valve with constant gas:air ratio
control
• Modulating water valve for improved comfort and
temperature control.
High quality materials for long working life
• Copper heat exchanger
• High efficiency Ceramat Burner
• Compact space saver: mounts on a wall with
supplied bracket.
Features
• Easily removable one-piece cover
• LCD Display with backlight
• On/Off and Temperature control buttons
• Reset button
• Program button (Selectable temperature default)
• Error codes for easy diagnostics and repair
• Real-time diagnostics for troubleshooting/informa-
tional purposes.
Accessories (Bosch part #)
• Optional wireless remote control to operate with the
appliance (TSTAT2)
• Cascading kit (TLINK)
• Outdoor kit (PTOK)
• External water filter (part # 8 703 305 356)
• Concentric termination kit (BWH60L46)
• Freeze prevention kit (7 709 003 665).
Warning: Do not obstruct the flow of
combustion and ventilation air.
Warning: When manually operating the
relief valve, precautions must be taken
prior to operating the relief valve to avoid
contact with hot water coming out of the
relief valve and to prevent water
damage.
Caution: Label all wires prior to
disconnection when servicing controls.
Wiring errors can cause improper and
dangerous operation.
Verify proper operation after servicing.
Warning: If a relief valve discharges pe-
riodically, this may be due to thermal ex-
pansion in a closed water supply
system. Contact the water supplier or
local plumbing inspector on how to cor-
rect this situation. Do not plug the relief
valve.
HOT
BURN
D A N G E R
Watertemperatureover125°Fcan
causesevereburnsinstantlyor
deathfromscalds.
Children,disabledandelderlyare
athighestriskofbeingscalded.
Seeinstructionmanualbefore
settingtemperatureatwater
heater.
Feelwaterbeforebathingor
showering.
i
BOSCH is constantly improving its
products, therefore specifications are
subject to change without prior notice.