![background image](http://html1.mh-extra.com/html/carrier/50hc-series/50hc-series_installation-instructions-manual_2561578043.webp)
43
*
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.
*
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.
*
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 9 — Dry Bulb Operation without DCV (CO
2
Sensor) — 1 Speed Fan
DEMAND
CONTROLLED
VENTILATION (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
Table 10 — Dry Bulb Operation with DCV (CO
2
Sensor) — 1 Speed Fan
DEMAND
CONTROLLED
VENTILATION (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
Table 11 — Enthalpy Operation without DCV (CO
2
Sensor) — 1 Speed Fan
DEMAND
CONTROLLED
VENTILATION (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
Summary of Contents for 50HC Series
Page 4: ...4 Fig 2 50HC 04 06 Units Built On and After 4 15 2019...
Page 5: ...5 Fig 3 50HC 04 06 Units Built Prior to 4 15 2019...
Page 6: ...6 Fig 4 50HC 04 06 Corner Weights and Clearances...
Page 7: ...7 Fig 5 50HC 04 06 Base Rail Details...
Page 8: ...8 Fig 6 50HC 04 06 Thru the Base Charts...
Page 25: ...25 Fig 47 Electro Mechanical Control Wiring Diagram...
Page 26: ...26 Fig 48 Electro Mechanical Control Wiring Diagram with Humidi MiZer System...
Page 27: ...27 Fig 49 Electro Mechanical Control Power Wiring Diagram...
Page 31: ...31 Fig 53 PremierLink Wiring Schematic...
Page 32: ...32 Fig 54 PremierLink Wiring Schematic with Humidi MiZer System...
Page 33: ...33 Fig 55 RTU Open System Control Wiring Diagram...
Page 34: ...34 Fig 56 RTU Open System Control Wiring Diagram with Humidi MiZer System...
Page 49: ......