IBC AHU Series - Wiring of the External Pump and 120 VAC Line; Connecting Line Voltage - Examples for Different Scenarios

An internal time delay is preset enabling the W2 blower speed after a preset duration of time. A
jumper between W1 and W2 will initialize this speed without the time delay.
Optional
Not used
Reversing valve (O or B) is selectable via the blower control interface.
Figure 26 Single-stage heat pump, fan control, on-demand heat source backup
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2.6.2 Connecting line voltage - examples for different scenarios