Thermostat Connections; Alarm Terminal Wiring - Bosch Greensource SM024 Installation, Operation And Maintenance Manual

Greensource CDi Series SM Model

THERMOSTAT CONNECTIONS

The HPC is equipped with standard coded
thermostat interface connectors. Refer to the
figures below.
Fig. 76 HPC Thermostat Connector
Fig. 77 Generic Thermostat Connections
When using a 2-cool, 3-heat thermostat both the
W1 and W2 on the Heat Pump and W2 and EM
on the thermostat must be connected together
via a jumper.
The HPC also provides visual indication (Green
LED) when the Thermostat has a call for a signal.
Greensource CDi Series SM Model

ALARM TERMINAL WIRING

Fig. 78 Alarm Terminal Connectors on the HPC Board
Fig. 79 Generic Thermostat Connections
Fig. 80 Alarm Support for Dry Contact Thermostats
Fig. 81 Alarm Support for 24VAC Thermostats
Subject to change without prior notice
Thermostat Connections | 61
8733819578 (2019/02)