32
*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.
*With 2SP FAN DELAY (Advanced Setup Menu) when in the economizing mode there is a delay for the high speed fan to try to satisfy the call for sec-
ond stage cooling by turning on the fan to high and opening the OA damper 100% before the first stage mechanical cooling is enabled.
†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 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
Table 12 — Enthalpy 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 L to
VENTMAX
Closed
On
On
High
24-v/On
24-v/On
VENTMIN H to
VENTMAX
Closed
Yes
Off
Off
High
0-v/Off
0-v/Off
VENTMIN L to
VENTMAX
Closed
On
Off
High
0-v/Off
0-v/Off
VENTMIN to
Full-Open
Closed to
Full-Open
On
On
High
DELAY*
24-v/On
0-v/Off†
VENTMIN to
Full-Open
Closed to
Full-Open
Summary of Contents for 50KC04
Page 4: ...4 Fig 2 Unit Dimensional Drawing of Units Built On and After 4 15 19...
Page 5: ...5 Fig 3 Unit Dimensional Drawing of Units Built on and Prior to 4 15 19...
Page 6: ...6 Fig 4 Unit Corner Weights and Clearances...
Page 7: ...7 Fig 5 Base Rail Details...
Page 8: ...8 Fig 6 Thru the Base Charts...
Page 35: ...35 Fig 49 Electro Mechanical Control Wiring Diagram...
Page 36: ...36 Fig 50 Electro Mechanical Control Wiring Diagram with Humidi MiZer System...
Page 37: ...37 Fig 51 Electro Mechanical Power Wiring...
Page 38: ...38 Fig 52 PremierLink Wiring Schematic...
Page 39: ...39 Fig 53 PremierLink Wiring Schematic with Humidi MiZer System...
Page 40: ...40 Fig 54 RTU Open System Control Wiring Diagram...
Page 41: ...41 Fig 55 RTU Open System Control Wiring Diagram with Humidi MiZer System...
Page 47: ...47 Fig 63 TXV Metering Device Position in Reheat Coil Typical Diagram for Sizes 04 06 TXV...
Page 48: ......
Page 49: ......