Boiler Water Temperature Control - Slant/Fin Galaxy GG Series Installation And Operating Instructions Manual

GALAXY
BOILERS EQUIPPED WITH HYDROSTAT CONTROL
SETTING THE CONTROL
IMPORTANT NOTICE
This boiler is equipped with a feature that saves energy by reducing the boiler water
temperature as the heating load decreases. This feature is equipped with an over-
ride which is provided primarily to permit the use of an external energy manage-
ment system that serves the same function. THIS OVERRIDE MUST NOT BE
USED UNLESS AT LEAST ONE OF THE FOLLOWING CONDITIONS IS TRUE:
• An external energy management system is installed that reduces the boiler water
temperature as the heating load decreases.
•This boiler is not used for any space heating.
•This boiler has an input of 300,000 BTU/hr or greater
• This boiler is part of a modular or multiple boiler system having a total input of
300,000 BTU/hr or greater.
• This boiler is equipped with a tankless coil.
Dynamic
Display
Water Temperature
and Real Time
Verification of
Setting Adjustments.
Low Temperature
Limit Setting
(OFF or 110°-200°F)
Factory OFF
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
11
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.