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8.6 Optional Electrical Connections
A. 1 K Ohm (1K Ω) Outdoor Temperature Sensor
To connect this accessory, see figure 8-5, terminals 4-5, and
instructions supplied with sensor.
B. Setting "Kt" Climate Curve
When external sensor is connected to boiler, the electronic
board adjusts the flow temperature calculated according to set
Kt coefficient.
Select required curve by rotating right knob as indicated in
chart below for selecting the appropriate curve (00 to 90).
Flow temp
Outside temp
NOTE:
Temperatures below -40 °F (-40 °C), maximum heating flow temperature set point no longer increases, curves shown on graph
become horizontal.
FIGURE 8-5 1K Ω Outdoor Sensor Connections
FIGURE 8-6 Kt Climate Curves
80 Is Default, High Limit Or Otherwise ID.
1 K Ω
PN 240012369, REV A [08/31/2018]
8 - ELECTRICAL CONNECTIONS
Содержание GMHB227
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