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ECO
®
Tec
series 2 gas-fired water boiler – user's information manual
The ECO Tec control display
Figure 11
ECO Tec boiler control display Homeowner Combi controls
• Water heated to temperature for clothes washing, dish washing and other sanitizing needs can scald and cause permanent injury.
• Children, elderly, and infirm or physically handicapped persons are more likely to be permanently injured by hot water.
Never leave them unattended in bathtub or shower. Never allow small children to use a hot water tap or draw their own bath.
• If anyone using hot water in the building fits the above description, or if state laws or local codes require certain water tem-
peratures at hot water taps, you must take special precautions:
• Use lowest possible temperature setting.
• Install a thermostatic protective device at each point of use in addition to the mixing valve installed at the water heater.
•
Water passing out of drain valves may be extremely hot. To avoid injury:
•
Make sure all connections are tight.
•
Direct water flow away from any person.
Protection must be taken against excessive pressure on the Combi side!
Install a pressure relief valve (150 psig) on the Combi Domestic Outlet pipe.
MENU Item
DESCRIPTION
The homeowner hot water screen can be accessed by going to the main
user menu and selecting the "Combi" option.
• Set target temperature to the required Combi water
temperature for the application according to design with
Hot Water Temp
mixing valve.
• Select whether to enable or disable Combi functionality.
• Disabling Combi functions will ignore DHW flow calls
Combi Enabled
for heat and only allow Central Heat on inputs 2 & 3 to
service calls for heat.
• Automatically maintains boiler water temperature to reduce
boiler reaction time on Combi domestic hot water (DHW)
draws.
PREHEAT Mode
• Select the mode of PREHEAT, between Off, Economy and
High Performance.
• Reacts to homeowner use to recharge boiler water tem-
perature once, if needed to reduce boiler reaction time on
subsequent Combi domestic hot water (DHW) draws.
ECO BOOST
• Select whether or not to use the ECO BOOST feature. If
conditions are met, the burner will continue to fire after
Combi flow ends to recover temperature within the heat
exchanger.
Hot Water Can Scald!
For all applications:
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