13
Heat Pump Systems use the Y terminal(s) for BOTH heating and cooling. The
W terminal is used to control the reversing valve which determines heating or
cooling mode.
Switch 3 – HP and HC Mode
When Sw2 is ON it is set for Heat Pump mode. This switch will set the reversing
valve logic (O/B). When Sw2 is OFF it is set for Heat Cool Mode. This switch will
then set the mode for the Heater fan logic (HG or HE mode).
Switch 4 – 2/4 Pipe Mode
To use 2 Pipe monitoring, set Sw2 to OFF and Sw4 to ON. Installer Menu option
27 - Remote SI and Com 0-V Temperature should be set to Option 3.
Switch 5 – Compressor Protection Delay
To protect some A/C systems, it is preferred that under no circumstances should
the compressor start within five minutes of it switching OFF.
NOTE:
When power is first applied to the SMART 3000 it assumes that the
compressor has just stopped and applies this anti-cycle delay time before
starting.
Switch 6 – Not Used
Summary of Contents for SmartSense SMART 3000
Page 19: ...19 Figure 6 Figure 7...
