Carrier 50HCQ12, Installation Instructions Manual

Page: 38 / 48

38
For damper minimum position settings and checkout menu read -
ings, see Table 13. See Tables 14-21 for dry bulb and enthalpy se -
quence of operation.
Table 13 — Damper Minimum Position Settings and Readings on Checkout Menu
Table 14 — Dry Bulb Operation, No Demand Controlled Ventilation (DCV) (CO
2
Sensor) — 1 Speed Fan
*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 15 — Dry Bulb Operation, with Demand Controlled Ventilation (DCV) (CO
2
Sensor) — 1 Speed Fan
*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 16 — Enthalpy Operation, No Demand Controlled Ventilation (DCV) (CO
2
Sensor) — 1 Speed Fan
*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.
DEMAND CONTROLLED VENTILATION
(CO
2
SENSOR)
FAN SPEED SETPOINTS CHECKOUT
NO
1
MIN POS VMAX – HS
N/A N/A
2
MIN POS H VMAX – HS
MIN POS L VMAX – LS
YES
1
VENT MIN VMIN – HS
VENT MAX VMAX – HS
2
VENT MIN H VMIN – HS
VENT MAX H VMAX – LS
VENT MIN L N/A
VENT MAX L N/A
DCV
OUTSIDE AIR
GOOD TO
ECONOMIZE?
Y1-I Y2-I FAN SPEED Y1-O Y2-O OCCUPIED UNOCCUPIED
None
No
Off Off High 0-v/Off 0-v/Off MIN POS Closed
On Off High 24-v/On 0-v/Off MIN POS Closed
On On High 24-v/On 24-v/On MIN POS Closed
Yes
Off Off High 0-v/Off 0-v/Off MIN POS Closed
On Off High 0-v/Off 0-v/Off MIN POS to Full-Open Closed to Full-Open
On On High 24-v/On 24-v/Off* MIN POS to Full-Open Closed to Full-Open
DCV
OUTSIDE AIR
GOOD TO
ECONOMIZE?
Y1-I Y2-I FAN SPEED Y1-O Y2-O OCCUPIED UNOCCUPIED
Below
CO
2
Set
No
Off Off High 0-v/Off 0-v/Off VENTMIN Closed
On Off High 24-v/On 0-v/Off VENTMIN Closed
On On High 24-v/On 24-v/On VENTMIN Closed
Yes
Off Off High 0-v/Off 0-v/Off VENTMIN Closed
On Off High 0-v/Off 0-v/Off VENTMIN to Full-Open Closed to Full-Open
On On High 24-v/On 0-v/Off* VENTMIN to Full-Open Closed to Full-Open
Above
CO
2
Set
No
Off Off High 0-v/Off 0-v/Off VENTMIN to VENTMAX Closed
On Off High 24-v/On 0-v/Off VENTMIN to VENTMAX Closed
On On High 24-v/On 24-v/On VENTMIN to VENTMAX Closed
Yes
Off Off High 0-v/Off 0-v/Off VENTMIN to VENTMAX Closed
On Off High 0-v/Off 0-v/Off VENTMIN to Full-Open Closed to Full-Open
On On High 24-v/On 0-v/Off* VENTMIN to Full-Open Closed to Full-Open
DCV
OUTSIDE AIR
GOOD TO
ECONOMIZE?
Y1-I Y2-I FAN SPEED Y1-O Y2-O OCCUPIED UNOCCUPIED
None
No
Off Off High 0-v/Off 0-v/Off MIN POS Closed
On Off High 24-v/On 0-v/Off MIN POS Closed
On On High 24-v/On 24-v/On MIN POS Closed
Yes
Off Off High 0-v/Off 0-v/Off MIN POS Closed
On Off High 0-v/Off 0-v/Off MIN POS to Full-Open Closed to Full-Open
On On High 24-v/On 0-v/Off* MIN POS to Full-Open Closed to Full-Open