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2SP H/C (2 Speed Heat/Cool) Fan Operation (single phase
units only)
The W7220 controller does not actually control the fan
speed or the heat output of the unit, and only uses this informa-
tion to help determine the damper position. On single phase
units, the unit control board (UCB) will reduce the fan speed
during heating when the configured fan speed is set outside the
optimized heating speed window. If the job site application
forces this reduction in fan speed during heat, the economizer
DEMAND
OUTSIDE AIR
CONTROLLED
GOOD TO
VENTILATION
ECONOMIZE
(DCV)
NO
NONE
YES
NO
BELOW CO
SET
2
YES
NO
ABOVE CO
SET
2
YES
*With stage 3 delay (STG3 DLY) in Advanced setup, COOL Y2-OUT will be turned ON after the delay time specified.
N/A = Not applicable
Table 16 — Economizer Operation - FAN TYPE = 2SP H/C
INPUTS
W
COOL
(HEAT ON)
Y1-IN
ON
N/A
OFF
OFF
OFF
ON
OFF
ON
ON
N/A
OFF
OFF
OFF
ON
OFF
ON
ON
N/A
OFF
OFF
OFF
ON
OFF
ON
ON
N/A
OFF
OFF
OFF
ON
OFF
ON
ON
N/A
OFF
OFF
OFF
ON
OFF
ON
ON
N/A
OFF
OFF
OFF
ON
OFF
ON
FAN TYPE must be set to keep the appropriate outside air in-
take.
On single phase 582K 3 to 5 ton units, if reduced the heating
fan speed is lower than the cooling speed and the economizer
FAN TYPE needs to be set to 2SP H/C (2 speed Heat/Cool).
This indicates that the heating and vent mode fan speed is less
than then cooling mode fan speed in the unit. Refer to Table 16
for economizer operation.
3 Speed Fan Operation
FAN TYPE = 3SPEED is not used on 582K units.
FAN SPEED
COOL
COOL
COOL
Y2-IN
Y1-OUT
Y2-OUT
N/A
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON
ON
ON
N/A
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
OFF*
N/A
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON
ON
ON
N/A
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
OFF*
N/A
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON
ON
ON
N/A
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF*
ON
ON
OFF*
39
OUTPUTS
DAMPER POSITION
(reference
OCCUPIED
only)
LOW
MIN POS L
LOW
MIN POS L
HIGH
MIN POS H
HIGH
MIN POS H
LOW
MIN POS L
LOW
MIN POS L
MIN POS H to
HIGH
Full Open
MIN POS H to
HIGH
Full Open
LOW
VENTMIN L
LOW
VENTMIN L
HIGH
VENTMIN H
HIGH
VENTMIN H
LOW
VENTMIN L
LOW
VENTMIN L
VENTMIN H to
HIGH
Full Open
VENTMIN H to
HIGH
Full Open
VENTMIN L to
LOW
VENTMAX L
VENTMIN L to
LOW
VENTMAX L
VENTMIN H to
HIGH
VENTMAX H
VENTMAX H to
HIGH
VENTMAX H
VENTMIN L to
LOW
VENTMAX L
VENTMIN L to
LOW
VENTMAX L
VENTMIN H to
HIGH
Full Open
VENTMIN H to
HIGH
Full Open
UNOCCUPIED
Closed
Closed
Closed
Closed
Closed
Closed
Closed to
Full Open
Closed to
Full Open
Closed
Closed
Closed
Closed
Closed
Closed
Closed to
Full Open
Closed to
Full Open
Closed
Closed
Closed
Closed
Closed
Closed
Closed to
Full Open
Closed to
Full Open
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