Wiring Diagrams - nest Thermostat E Installation Manual

Nest Thermostat E Connections
Connections:
C Common Wire
NO Normally Open/Call for Heat
FP Fil Pilote (Normally Closed)
OT1 OpenTherm 1
OT2 OpenTherm 2
Energy Performance Standards
ErP Class
IV
+2%
when connected through
On/Off
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Wiring Diagrams

ErP Class
when connected through
On/Off Relay:
Max 2(1) amp
Load
Voltage 0-240v
Input
VI
+4%
Open Therm