Boiler Water Temperature Control - Slant/Fin S-34 Installation And Operating Instructions Manual

10
BOILERS EQUIPPED WITH HYDROSTAT CONTROL
SETTING THE CONTROL
SYSTEM START-UP
At initial start up, with the Economy Feature active, the control
establishes a 145°F target temperature. To test the high limit
shut-off function, the Economy Dial must be turned to OFF.
Once tested, restore the Economy setting. If the heating
demand is high, the target will increase over time to satisfy the
heat load. NOTE: To reduce the potential for condensing, the
control will allow the boiler to heat to 120°F prior to energizing
the circulator.
Dynamic
Display
Water Temperature
and Real Time
Verification of
Setting Adjustments.
Low Temperature
Limit Setting
(OFF or 110°-200°F)
Factory OFF
HOW THERMAL TARGETING WORKS
Thermal Targeting technology analyzes thermostat activity and
continually evaluate how much heat the house requires. When
it is very cold outside, the heat demand is high and the Fuel
Smart HydroStat will raise the boiler s Target temperature to
provide needed heat to the home. When the outside tempera-
ture is milder, the heat demand is lower. During these periods,
the Fuel Smart HydroStat will lower the boiler s Target temper-
ature – saving fuel – while continuing to provide comfort to the
house.
SETTING
OFF Disables economy function. Will allow boiler to fire until hi
limit temp is reached and re-fire with a 10° subtractive
differential.
LO Provides lowest level of fuel savings. Use this setting only
if the house does not stay warm at higher settings.
Recommended setting for single zone systems
2
Recommended setting for Two zone systems
3 Recommended setting for Three zone systems
4 Recommended setting for Four zone systems
5
Recommended setting for Five zone systems
HI
Provides highest level of fuel savings
Sentry
Diagnostic LEDs
and Test Button
Jumper
Economy Dial
(OFF or LO, 1, 2, 3,
4, 5, HI)
Indicator Light
(announces heat call)
High Temperature
Limit Setting
(100°-220°F)
Factory 190°F
Differentials are
automatic and will
vary based on
control settings and
boiler temperature.