Carrier WeatherExpert 48LC Series Installation Instructions Manual page 43
Single package rooftop gas heat/electric cooling unit with puron (r-410a) refrigerant
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Also See for WeatherExpert 48LC Series:
- Controls, start-up, operation and troubleshooting (190 pages) ,
- Service and maintenance instructions (76 pages) ,
- Installation instructions manual (76 pages)
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Table 16 — Dry Bulb Operation without DCV (CO
DEMAND
CONTROLLED
VENTILATION (DCV)
NONE
*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 Y–I and
Y2–I have not been satisfied.
Table 17 — Dry Bulb Operation with DCV (CO
DEMAND
CONTROLLED
VENTILATION (DCV)
Below CO
set
2
Above CO
set
2
*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 Y–I and
Y2–I have not been satisfied.
Table 18 — Enthalpy Operation without DCV (CO
DEMAND
CONTROLLED
VENTILATION (DCV)
NONE
*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 Y–I and
Y2–I have not been satisfied.
OUTSIDE AIR
GOOD TO
Y1-I
Y2-I
ECONOMIZE
Off
Off
No
On
Off
On
On
Off
Off
On
Off
Yes
On
On
OUTSIDE AIR
GOOD TO
Y1-I
Y2-I
ECONOMIZE
Off
Off
No
On
Off
On
On
Off
Off
On
Off
Yes
On
On
Off
Off
No
On
Off
On
On
Off
Off
Yes
On
Off
On
On
OUTSIDE AIR
GOOD TO
Y1-I
Y2-I
ECONOMIZE
Off
Off
No
On
Off
On
On
Off
Off
On
Off
Yes
On
On
Sensor) — 1 Speed Fan
2
FAN SPEED
Y1-O
High
0-v/Off
High
24-v/On
High
24-v/On
High
0-v/Off
High
0-v/Off
High
24-v/On
Sensor) — 1 Speed Fan
2
FAN SPEED
Y1-O
High
0-v/Off
High
24-v/On
High
24-v/On
24-v/On
High
0-v/Off
High
0-v/Off
High
24-v/On
0-v/Off*
High
0-v/Off
High
24-v/On
High
24-v/On
24-v/On
High
0-v/Off
High
0-v/Off
High
24-v/On
0-v/Off*
Sensor) — 1 Speed Fan
2
FAN SPEED
Y1-O
High
0-v/Off
High
24-v/On
High
24-v/On
High
0-v/Off
High
0-v/Off
High
24-v/On
43
Y2-O
OCCUPIED
0-v/Off
MIN POS
0-v/Off
MIN POS
24-v/On
MIN POS
0-v/Off
MIN POS
MIN POS to
0-v/Off
Full-Open
MIN POS to
0-v/Off*
Full-Open
Y2-O
OCCUPIED
0-v/Off
VENTMIN
0-v/Off
VENTMIN
VENTMIN
0-v/Off
VENTMIN
VENTMIN to
0-v/Off
Full-Open
VENTMIN to
Full-Open
VENTMIN to
0-v/Off
VENTMAX
VENTMIN to
0-v/Off
VENTMAX
VENTMIN to
VENTMAX
VENTMIN to
0-v/Off
VENTMAX
VENTMIN to
0-v/Off
Full-Open
VENTMIN to
Full-Open
Y2-O
OCCUPIED
0-v/Off
MIN POS
0-v/Off
MIN POS
24-v/On
MIN POS
0-v/Off
MIN POS
MIN POS to
0-v/Off
Full-Open
MIN POS to
0-v/Off*
Full-Open
UNOCCUPIED
Closed
Closed
Closed
Closed
Closed to
Full-Open
Closed to
Full-Open
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
UNOCCUPIED
Closed
Closed
Closed
Closed
Closed to
Full-Open
Closed to
Full-Open
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