Sequence Of Operation - Carrier 50TCQD14 Installation Instructions Manual

Table 12 – Damper Minimum Position Settings and Readings on Checkout Menu

Sequence of Operation

Table 13 – Dry Bulb Operation No DCV (CO
Demand
Outside Air ---
Controlled
Good to
Ventilation
economize?
(DCV)
None No
None Yes
*
With stage 3 delay (STG3 DLY) in Advanced setup menu can turn on second stage of mechanical cooling Y2 –O after the delay if the call for Y1 ---I and Y2 ---I
have not been satisfied.
Table 14 – Dry Bulb Operation With DCV (CO
Demand
Outside Air ---
Controlled
Good to
Ventilation
economize?
(DCV)
No
Below CO set
2
Yes
No
Above CO set
2
Yes
*
With stage 3 delay (STG3 DLY) in Advanced setup menu can turn on second stage of mechanical cooling Y2 –O after the delay if the call for Y1 ---I and Y2 ---I
have not been satisfied.
Demand Controlled Ventilation
Fan Speed
(CO Sensor)
2
1 NO
1 NO
2 NO
2 NO
1 YES
1 YES
2 YES
2 YES
2 YES
2 YES
Y1­I Y2-I Fan Speed
Off Off High
On Off High
On On High
Off Off High
On Off High
On On High
Y1­I 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 Checkout
MIN POS VMAX ---HS
N/A N/A
MIN POS H VMAX ---HS
MIN POS L VMAX ---LS
VENT MIN VMIN ---HS
VENT MAX VMAX ---HS
VENT MIN H VMIN ---HS
VENT MAX H VMAX ---LS
VENT MIN L N/A
VENT MAX L N/A
Sensor) - - 1 Speed Fan
2
Y1-O Y2-O
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 0-v/Off * MIN POS to Full-Open
Sensor) - - 1 Speed Fan
2
Y1-O Y2-O
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
24-v/On 0-v/Off* VENTMIN to Full-Open
0-v/Off 0-v/Off VENTMIN to VENTMAX
24-v/On 0-v/Off VENTMIN to VENTMAX
24-v/On 24-v/On VENTMIN to VENTMAX
0-v/Off 0-v/Off VENTMIN to VENTMAX
0-v/Off 0-v/Off VENTMIN to Full-Open
24-v/On 0-v/Off* VENTMIN to Full-Open
36
Occupied Unoccupied
Closed
Closed
Closed
Closed
Closed to Full-Open
Closed to Full-Open
Occupied Unoccupied
Closed
Closed
Closed
Closed
Closed to Full-Open
Closed to Full-Open
Closed
Closed
Closed
Closed
Closed to Full-Open
Closed to Full-Open