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Series 8900SH Control Panel Operation And Installation Manual
Section 8 Entry Code Details
ENTRY CODE 27: DESIGN RETURN WATER TEMPERATURE SETTING
PRESS + = ENTRY CODE
ENTER YOUR CHOICE
PRESS = SAVE KEY, TO SET DESIGN RETURN WATER TEMPERATURE.
THE AVAILABLE TEMPERATURE RANGE IS +100°F TO +225°F
This sets the Design Return Water Temperature. It is important to set it correctly because
many of the panel’s calculations are based on this figure. Usually the system design engineer
will have already calculated this. However, if you do not know the proper temperature simply
use 180°F.
ENTRY CODE 28: OUTSIDE DESIGN TEMPERATURE SETTING
PRESS + = ENTRY CODE
ENTER YOUR CHOICE
PRESS = SAVE KEY, TO SET OUTSIDE DESIGN TEMPERATURE.
THE AVAILABLE TEMPERATURE RANGE IS - 20°F TO +50°F
This code sets the Design Outside Temperature, which is the average coldest temperature
your geographic area is expected to experience. The correct figure can be found by calling a
local heating contractor or your mechanical engineer.
To enter a number below 0°F degrees, press any two keys side by side at the same time to set
the display to a negative number, then enter the temperature.
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