Sequence Of Operation - Carrier WeatherMaster Series Installation Instructions Manual

For damper minimum position settings and checkout menu
readings, see Table 9.
Table 9 — Damper Minimum Position Settings and Readings on Checkout Menu
DEMAND CONTROLLED VENTILATION
FAN SPEED
1
1
2
2
1
1
2
2
2
2

SEQUENCE OF OPERATION

See Tables 10-17 for dry bulb and enthalpy sequence of
operation.
Table 10 — Dry Bulb Operation, No Demand Controlled Ventilation (DCV) (CO
OUTSIDE AIR
DCV GOOD TO
ECONOMIZE?
No
None
Yes
*With stage 3 delay (STG3 DLY) in Advanced setup menu, second
stage of mechanical cooling Y2-O can be turned on after the delay if
the calls for Y1-I and Y2-I have not been satisfied.
Table 11 — Dry Bulb Operation, With Demand Controlled Ventilation (DCV) (CO
OUTSIDE AIR
DCV GOOD TO
ECONOMIZE?
No
Below
CO Set
2
Yes
No
Above
CO Set
2
Yes
*With stage 3 delay (STG3 DLY) in Advanced setup menu, second
stage of mechanical cooling Y2-O can be turned on after the delay if
the calls for Y1-I and Y2-I have not been satisfied.
(CO SENSOR)
2
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
Y1-I Y2-I FAN SPEED
Off Off High
On Off High
On On High
Off Off High
On Off High
On On High
Y1-I Y2-I FAN SPEED
Off Off High
On Off High
On On High
Off Off High
On Off High
On On High
Off Off High
On Off High
On On High
Off Off High
On Off High
On On High
SETPOINTS
MIN POS
N/A
MIN POS H
MIN POS L
VENT MIN
VENT MAX
VENT MIN H
VENT MAX H
VENT MIN L
VENT MAX L
Y1-O Y2-O OCCUPIED
0-v/Off 0-v/Off MIN POS
24-v/On 0-v/Off MIN POS
24-v/On 24-v/On MIN POS
0-v/Off 0-v/Off MIN POS
0-v/Off 0-v/Off MIN POS to Full-Open
24-v/On 24-v/Off* MIN POS to Full-Open
Y1-O Y2-O OCCUPIED
0-v/Off 0-v/Off VENTMIN
24-v/On 0-v/Off VENTMIN
24-v/On 24-v/On VENTMIN
0-v/Off 0-v/Off VENTMIN
0-v/Off 0-v/Off VENTMIN to Full-Open Closed to Full-Open
24-v/On 0-v/Off* VENTMIN to Full-Open Closed to Full-Open
0-v/Off 0-v/Off VENTMIN to VENTMAX Closed
24-v/On 0-v/Off VENTMIN to VENTMAX Closed
24-v/On 24-v/On VENTMIN to VENTMAX Closed
0-v/Off 0-v/Off VENTMIN to VENTMAX Closed
0-v/Off 0-v/Off VENTMIN to Full-Open Closed to Full-Open
24-v/On 0-v/Off* VENTMIN to Full-Open Closed to Full-Open
42
CHECKOUT
VMAX – HS
N/A
VMAX – HS
VMAX – LS
VMIN – HS
VMAX – HS
VMIN – HS
VMAX – LS
N/A
N/A
Sensor) — 1 Speed Fan
2
UNOCCUPIED
Closed
Closed
Closed
Closed
Closed to Full-Open
Closed to Full-Open
Sensor) — 1 Speed Fan
2
UNOCCUPIED
Closed
Closed
Closed
Closed