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8.6 Optional Electrical Connections
A. 1K OHM Outdoor Temperature Sensor
To connect this accessory, see Figure 8-7, terminals 4-5, and
instructions supplied with sensor. See Chart 1 -
1K
Ω
Outdoor
Air Sensor Data.
a. Boiler automatically recognizes sensor when used.
b. See Chart 1 for sensor data. Sensor part number
BD710487302V
c. Locate outdoor sensor to protect against wind and
direct sunlight. Mounting instructions provided with
sensor.
d. Maximum wire length is 100 ft (30m) for 22 ga. wire,
or 150 ft (45m) for 18 ga. wire.
e. Connect wires to M2 OUTDOOR SENSOR terminals 4 &
5. Wires are interchangeable. See Accessories.
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
8 - ELECTRICAL CONNECTIONS
FIGURE 8-7 1K Ω OUTDOOR SENSOR CONNECTIONS
FIGURE 8-8 KT CLIMATE CURVES
NOTE:
Temperatures below -40 °F (-40 °C), maximum heating flow temperature set point no longer increases, curves shown on graph
become horizontal.
C. Optional
10K Ω
Indirect Tank Sensor Resistance - See
chart 2
(Factory Default = 80)
1K Ω
PN 240012363 REV. A [08/31/2018]
Содержание Green Mountain GMCB150
Страница 51: ...51 8 ELECTRICAL CONNECTIONS FIGURE 8 13A WIRE DIAGRAM GMCB150 COMBI BOILER PN 240012363 REV A 08 31 2018 ...
Страница 52: ...52 FIGURE 8 13B 8 ELECTRICAL CONNECTIONS LADDER DIAGRAM GMCB150 COMBI BOILER PN 240012363 REV A 08 31 2018 ...
Страница 55: ...55 8 ELECTRICAL CONNECTIONS FIGURE 8 15A WIRE DIAGRAM GMCB200 COMBI BOILER PN 240012363 REV A 08 31 2018 ...
Страница 56: ...56 8 ELECTRICAL CONNECTIONS FIGURE 8 15B LADDER DIAGRAM GMCB150 COMBI BOILER PN 240012363 REV A 08 31 2018 ...