![background image](http://html.mh-extra.com/html/carrier/48hc-04-14/48hc-04-14_service-and-maintenance-instructions_2561012053.webp)
53
4
3
5
2
8
6
7
1
10
11
9
12
PINK
VIOLET
BLACK
BLUE
YELL
O
W
NOTE 1
NOTE 3
RUN
500 OHM
RESISTOR
50HJ540573
ACTUATOR
ASSEMBLY
RED
WHITE
ECONOMISER2 PLUG
DIRECT DRIVE
ACTUATOR
4-20mA SIGNAL
OAT SENSOR
4-20 mA
TO J9 ON
PremierLink
BOARD
24 VAC
TRANSFORMER
GROUND
NOTES:
1. Switch on actuator must be in run position for economizer to operate.
2. PremierLink™ control requires that the standard 50HJ540569 outside-air sensor be replaced by either the CROASENR001A00 dry bulb sen
sor or HH57A077 enthalpy sensor.
3. 50HJ540573 actuator consists of the 50HJ540567 actuator and a harness with 500-ohm resistor.
C08310
Fig. 65 -- EconoMi$er2 with 4 to 20 mA Control Wiring
Table 22 – EconoMi$er IV Input/Output Logic
INPUTS
OUTPUTS
Demand Control
Ventilation (DCV)
Enthalpy*
Y1
Y2
Compressor
N Terminal†
Outdoor
Return
Stage
1
Stage
2
Occupied
Unoccupied
Damper
Below set
(DCV LED Off)
High
(Free Cooling LED Off)
Low
On On
On
On
Minimum position
Closed
On Off
On
Off
Off Off
Off
Off
Low
(Free Cooling LED On)
High
On On
On
Off
Modulating** (between min.
position and full-open)
Modulating** (between
closed and full-open)
On Off
Off
Off
Off Off
Off
Off
Minimum position
Closed
Above set
(DCV LED On)
High
(Free Cooling LED Off)
Low
On On
On
On
Modulating†† (between min.
position and DCV
maximum)
Modulating†† (between
closed and DCV
maximum)
On Off
On
Off
Off Off
Off
Off
Low
(Free Cooling LED On)
High
On On
On
Off
Modulating***
Modulating†††
On Off
Off
Off
Off Off
Off
Off
*
For single enthalpy control, the module compares outdoor enthalpy to the ABCD setpoint.
†
Power at N terminal determines Occupied/Unoccupied setting: 24 vac (Occupied), no power (Unoccupied).
** Modulation is based on the supply-air sensor signal.
†† Modulation is based on the DCV signal.
*** Modulation is based on the greater of DCV and supply-air sensor signals, between minimum position and either maximum
position (DCV) or fully open (supply-air signal).
††† Modulation is based on the greater of DCV and supply-air sensor signals, between closed and either maximum position
(DCV) or fully open (supply-air signal).
48H
C
Summary of Contents for 48HC*04-14
Page 94: ...94 APPENDIX IV WIRING DIAGRAMS C14007 Fig 80 48HC A04 A06 YAC Power Diagram 230 1 60 48HC ...
Page 96: ...96 APPENDIX IV WIRING DIAGRAMS C14013 Fig 82 48HC A04 A06 YAC Power Diagram 575 3 60 48HC ...
Page 97: ...97 APPENDIX IV WIRING DIAGRAMS C14018 48HC ...
Page 98: ...98 APPENDIX IV WIRING DIAGRAMS C14019 48HC ...
Page 99: ...99 APPENDIX IV WIRING DIAGRAMS C13484 Fig 83 48HC D08 D09 YAC Power Diagram 230 460 3 60 48HC ...
Page 100: ...100 APPENDIX IV WIRING DIAGRAMS C14024 Fig 84 48HC D08 D09 YAC Power Diagram 575 3 60 48HC ...
Page 101: ...101 APPENDIX IV WIRING DIAGRAMS C14027 Fig 85 48HC D12 YAC Power Diagram 230 460 3 60 48HC ...
Page 102: ...102 APPENDIX IV WIRING DIAGRAMS C14029 Fig 86 48HC D12 YAC Power Diagram 575 3 60 48HC ...
Page 104: ...104 APPENDIX IV WIRING DIAGRAMS C14032 Fig 88 48HC D14 YAC Power Diagram 230 460 3 60 48HC ...
Page 105: ...105 APPENDIX IV WIRING DIAGRAMS C12462 Fig 89 48HC D14 YAC Power Diagram 575 3 60 48HC ...
Page 123: ...123 APPENDIX IV WIRING DIAGRAMS C12690 Fig 107 PremierLink System Control Wiring Diagram 48HC ...
Page 125: ...125 APPENDIX IV WIRING DIAGRAMS C14034 Fig 109 RTU Open Wiring Diagram 48HC ...