User Guide

Part number 550-100-193/0817
– 47 –
®
CONDENSING GAS BOILER — 70/110/155 Advanced Manual
BOILER SETTINGS menu
MENU ITEM DESCRIPTION
BOILER MODEL
s MUST be set to correct model.
s Check the boiler model against the model listed on the boil-
er’s rating plate. Change the selection to the correct model if
not. Also verify the model number on the Evergreen
®
display
at power-up. Failure to correct would result in severe per-
sonal injury, death or substantial property damage.
CONTROL TYPE
s Select single, master or shadow.
HIGH ALTITUDE
s If the boiler is installed at an altitude above 5500 feet,
select YES for high altitude. The control will automatically adjust
firing rates (blower speeds) to compensate for altitude. Altitude
MUST be set correctly to avoid risk of severe personal injury, death
or substantial property damage.
LP GAS
s MUST be correct — YES if LP Gas is used or NO
if natural gas is used. Follow screen instructions to change if
necessary.
ODT SENSOR
EXEMPT
s Select YES only if boiler is exempt from the requirement
for outdoor reset operation stipulated in Section 303 of the
2007 Energy Act. See information provided elsewhere in this
manual.
MANUAL RESET
HIGH LIMIT
TEMP
s If boiler outlet water temperature exceeds this temperature,
the Evergreen
®
control will shut down the boiler and enter
lockout. Changing this setting is NOT recommended.
WWSD TEMP
s WWSD stands for warm weather shutdown. It means the
boiler will not be allowed to fire if the outside temperature is
greater than the WWSD setting.
When the boiler is kept off because the outside temperature is
above WWSD, the graphic display will show WWSD, and the
boiler will remain in standby until the outside temperature
drops below WWSD temperature.
WWSD does not apply to DHW systems.
The outdoor sensor must be installed to use this function.
Any setting other than OFF will cause the control to look for
a sensor. It will display an error if a sensor is not detected.
ADJUST
OUTDOOR
s Use this setting to calibrate the outdoor sensor when needed
to compensate for variations in lead length or other factors
that could affect total resistance in sensor circuit.
CIRCULATOR
EXERCISING
s For each circulator, select whether you want the control to
automatically start the circulator and run for 10 seconds for
each 72-hour period of inactivity.
FREEZE
PROTECT
CIRCS
s This function automatically starts the circulators chosen if the
heat exchanger sensors detect a temperature less than 45°F. In
addition, the burner is turned on if temperature drops below
40°F. Circulators and burner turn off when the temperature
rises above 48°F.
RESET
FACTORY
DEFAULTS
s Use this function to restore all control settings to factory
default values — will require complete restart and setup of
control after resetting. Record information from the MAIN-
TENANCE screen and any history information that may be of
use in the future. ALL stored data is eliminated when reset to
defaults, except for boiler model number.
Figure 23 Evergreen
®
ADVANCED mode BOILER SETTINGS options (see Figure 22, page 46 to access CONTRACTOR menu)
Boiler Model, Altitude and Fuel Type are criti-
cal settings.
Failure to set correctly could result in
severe personal injury, death or substantial property
damage.
1. Access contractor menus by pressing and holding the UP and
DOWN arrow keys at the same time for 7 seconds.
2. See Figure 22, page 46 for the screen sequences up to the
CONTRACTOR menu.
Screens shown above are typical only.
Actual screens depend on control
settings chosen.