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INTELLIZONE2 INSTALLATION MANUAL
IntelliZone2 Split Operation
For the split system to be compatible with IntelliZone2
there must be either an AXB in the compressor section or
an AHB in the SAH Air Handler. As always an ABC board
must be in the comressor section as well.
Upon a call (or calls) from the zones, the IntelliZone2
“weighs” each zone based upon two components: 1) the
level of call (Y1, Y2, Y3) coming from the zone; and 2)
the size of the zone (zone % selected). This gives a very
accurate picture of not only overall heating or cooling
requirements (as in other control methods), but also
how much heating or cooling is really required for each
separate zone.
This, in turn, defines how much compressor (1st or 2nd
stage), blower and auxiliary heat should be engaged for
each particular situation. The result is a system that utilizes
lower compressor speed more often for improved comfort
and energy savings, while relying upon auxiliary heat less
often for more energy savings than non-zoned systems.
The variable speed ECM motor allows 6 air flow levels
with IntelliZone2 while the 5 Speed ECM will allow 4 air
flow levels. Althought the 5 speed ECM works with the
IntelliZone2 the additional available air flow levels and air
flow adjustability make the variable speed ECM the better
option for zoning.
Heating, Unit 1st stage
(Single/Dual Capacity Compressor and Variable Speed ECM)
Operation as stated above with separate zone call levels of
YI, Y2, and W being translated into unit call 1st stage (Y1).
Blower speed will be the ‘L’ setting of the ECM which is set
up at the heat pump control.
Heating, Unit 1st stage
(Single/Dual Capacity Compressor and 5-Speed ECM)
Operation as stated above with separate zone call levels of
YI, Y2, and W being translated into unit call 1st stage (Y1).
Blower speed will be the ‘Y1’ setting of the 5-Speed ECM
which is set at the motor.
Heating, Unit 2nd stage
(Single/Dual Capacity Compressor and Variable Speed ECM)
Operation as stated above with separate zone call levels of
YI, Y2, and W being translated into unit call 2nd stage (Y1,
Y2). Blower speed will be the ‘H’ setting of the ECM which
is set up at the heat pump control.
Heating, Unit 2nd stage
(Single/Dual Capacity Compressor and 5-Speed ECM)
Operation as stated above with separate zone call levels of
YI, Y2, and W being translated into unit call 2nd stage (Y1,
Y2). Blower speed will be the ‘Y2’ setting of the 5-Speed
ECM which is set at the motor.
Heating, Unit 3rd Stage
(Single/Dual Capacity Compressor and Variable Speed ECM)
Operation as stated above with separate zone call levels of
YI, Y2, and W being translated into unit call 3rd stage (Y1,
Y2, W). Blower speed will be the ‘H’ (Premier control) or
‘Aux’ (ABC control) setting of the ECM which is set up at
the heat pump control.
Heating, Unit 3rd Stage
(Single/Dual Capacity Compressor and 5-Speed ECM)
Operation as stated above with separate zone call levels of
YI, Y2, and W being translated into unit call 3rd stage (Y1,
Y2, W). Blower speed will be the ‘W’ setting of the 5-Speed
ECM which is set at the motor.
Cooling, Unit 1st stage
(Single/Dual Capacity Compressor and Variable Speed ECM)
Operation as stated above with separate zone call levels of
YI, Y2, and O being translated into unit call 1st stage (Y1, O).
Blower speed will be the ‘L’ setting of the ECM which is set
up at the heat pump control.
Cooling, Unit 1st stage
(Single/Dual Capacity Compressor and 5-Speed ECM)
Operation as stated above with separate zone call levels of
YI, Y2, and O being translated into unit call 1st stage (Y1, O).
Blower speed will be the ‘Y1’ setting of the 5-Speed ECM
which is set at the motor.
Cooling, Unit 2nd stage
(Single/Dual Capacity Compressor and Variable Speed ECM)
Operation as stated above with separate zone call levels
of YI, Y2, and O being translated into unit call 2nd stage
(Y1, Y2, O). Blower speed will be the ‘H’ setting of the ECM
which is set up at the heat pump control.
Cooling, Unit 2nd stage
(Single/Dual Capacity Compressor and 5-Speed ECM)
Operation as stated above with separate zone call levels of
YI, Y2, and O being translated into unit call 2nd stage (Y1,
Y2, O). Blower speed will be the ‘Y2’ setting of the 5-Speed
ECM which is set at the motor.
Dehumidification (Variable Speed ECM)
If dehumidification is desired it is set via the AID Tool on
the ABC control by selecting -5% to -15% in the cooling
airflow setup.
Description of Operation - Split System
