Installation Manual

6.3.10. Utility Curtailment

NOTE: Utility Curtailment and Utility Saver functions are different than the Utility

Demand Response function described in the Owner’s Manual. Utility

Curtailment/Utility Saver uses the UTIL and Y2 (or equivalent) terminals on the

Evolution System compressor section control board to receive a signal from the

Utility, typically from the electric meter assembly, to signal a curtailment period.

This section describes the actions taken in response to that signal. See the

equipment installation instructions for more information on wiring the compressor

section control board to the Utility connections.

Utility Saver is used to force the equipment to a lower stage (low or off) when

activated by the utility company, typically during peak load times. This setup is

available only if the equipment has a utility saver input (refer to outdoor equipment

Installation Instructions). This setup controls the response of the equipment when

the utility saver input is active. DISABLED means that the curtailment function is

not active. TURN OFF means the outdoor unit is to be turned off when the

curtailment function is active. LOW STAGE means the outdoor unit will run in

lows stage when the curtailment function is active. After the selections are made,

touch SAVE.

A12193

S Cooling: Disabled, Low Stage or Turn off

d Default = Disabled