37
Standard or Single Speed Fan Operation
The W7220 controller will control a standard 1 speed unit
when configured for FAN TYPE = 1 SPEED. Refer to
Table 13 for economizer operation.
Table 13 — Economizer Operation - FAN TYPE = 1SPEED
*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
INPUTS OUTPUTS
DEMAND
CONTROLLED
VENTILATION
(DCV)
OUTSIDE AIR
GOOD TO
ECONOMIZE
W
(HEAT ON)
COOL
Y1-IN
COOL
Y2-IN
COOL
Y1-OUT
COOL
Y2-OUT
FAN SPEED
(reference
only)
DAMPER POSITION
OCCUPIED UNOCCUPIED
NONE
NO
N/A OFF OFF OFF OFF HIGH MIN POS Closed
N/A ON OFF ON OFF HIGH MIN POS Closed
N/A ONONONON HIGH MIN POS Closed
YES
N/A OFF OFF OFF OFF HIGH MIN POS Closed
N/A ON OFF OFF OFF HIGH
MIN POS to
Full Open
Closed to
Full Open
N/A ONONONOFF* HIGH
MIN POS to
Full Open
Closed to
Full Open
Below CO
2
Set
NO
N/A OFF OFF OFF OFF HIGH VENTMIN Closed
N/A ON OFF ON OFF HIGH VENTMIN Closed
N/A ONONONON HIGH VENTMIN Closed
YES
N/A OFF OFF OFF OFF HIGH VENTMIN Closed
N/A ON OFF OFF OFF HIGH
VENTMIN to
Full Open
Closed to
Full Open
N/A ONONONOFF* HIGH
VENTMIN to
Full Open
Closed to
Full Open
Above CO
2
Set
NO
N/A OFF OFF OFF OFF HIGH
VENTMIN to
VENTMAX
Closed
N/A ON OFF ON OFF HIGH
VENTMIN to
VENTMAX
Closed
N/A ONONONON HIGH
VENTMIN to
VENTMAX
Closed
YES
N/A OFF OFF OFF OFF HIGH
VENTMIN to
VENTMAX
Closed
N/A ON OFF OFF OFF HIGH
VENTMIN to
Full Open
Closed to
Full Open
N/A ONONONOFF* HIGH
VENTMIN to
Full Open
Closed to
Full Open
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