Product Brochure

Upgrade Existing Cold Start and
Triple-Action Aquastats*
• Install HydroStat on existing immersion well for full Aquastat and
Boiler Reset functionality, or
• Install HydroStat on Electro-Well™ to add
Low Water Cut-Off protection
m Easy Dial-Type Set-up
Simply dial in the Temperature
Limit and Economy settings.
m Dynamic Display
Continually displays boiler tem-
perature. Intermittently displays
outside temperature
when in outdoor
reset mode. Instantly
changes to display control settings
when any dial is adjusted.
m Test/Settings Button
• Press and hold to test the Low
Water Cut-Off operation (opera-
tional when control is installed on
an Electro-Well™)
• Press momentarily to scroll
through control settings (High
Limit, Low Limit, Economy Set-
ting, and the current Boiler Reset
Target Temperature).
m Easy to Install
Uses industry standard wiring
designations.
*Aquastat is a registered trademark of Honeywell International, Inc.
m LED Status Lights
Continually indicates which functions are active and if the control is
holding the burner off for any reason.
•
TEMP ACTIVE – Indicates the control is powered and the tempera-
ture function is active.
•
TEMP HI TEMP – Illuminates any time the burner is off as a result of
the boiler reaching the high limit setting.
•
LWCO ACTIVE – Illuminates when the control is providing low
water cut-off protection. This function is activated by installing a
Hydrolevel Electro-Well™. This LED will not illuminate when the
control is installed on a standard immersion well.
•
LWCO LOW WATER – Indicates a low water condition in the boiler.
•
ECONOMY ACTIVE – Indicates that the Economy dial is turned on
and that Thermal Targeting or Outdoor Reset function is active.
•
ECONOMY TARGET – Illuminates any time the burner is off as a
result of the boiler reaching the Target temperature determined by
Thermal Targeting or Outdoor Reset.
m Smart DHW Priority
Closely monitors boiler temperature when calls for domestic hot water
coincide with space heating calls. The control will prioritize the do-
mestic hot water call only when needed.
m Call for Heat Indicator
Illuminates on any call for heat.