33
ECONOMIZER SYSTEMS
The 50KC units may be equipped with a factory-installed or
accessory (field-installed) economizer system. Three types are
available: with a logic control system (EconoMi$er IV and
EconoMi$er X) and without a control system (EconoMi$er2).
See Fig. 50-52 for component locations on each type. The
W7212 controller is used for EconoMi$er IV and the W7220
controller is used for EconoMi$er X. See Fig. 53-56 for econo-
mizer section wiring diagrams.
All three economizers use direct-drive damper actuators.
Fig. 50 — EconoMi$er X Component Locations
Fig. 51 — EconoMi$er IV Component Locations
Fig. 52 — EconoMi$er2 Component Locations
OUTSIDE AIR
TEMPERATURE SENSOR
WIRING HARNESS
ECONOMI$ER IV
CONTROLLER
OUT
S
IDE AIR
TEMPERATURE
S
EN
S
OR
LOW AMBIENT
S
EN
S
OR
ACTUATOR
WIRING
HARNE
SS
ECONOMI$ER2
PLUG
BAROMETRIC
RELIEF
DAMPER
OUTDOOR
AIR HOOD
HOOD
S
HIPPING
BRACKET
GEAR DRIVEN
DAMPER
Summary of Contents for WeatherMaker 50KCQ A04 Series
Page 34: ...34 Fig 53 RTU Open Overlay for Economizer Wiring ...
Page 35: ...35 Fig 54 VFD Overlay for W2770 Controller Wiring ...
Page 70: ...70 Fig C 50KCQ A04 A05 A06 Control Wiring Diagram 575 3 60 APPENDIX D WIRING DIAGRAMS ...
Page 71: ...71 Fig D 50KCQ A04 A05 A06 Power Wiring Diagram 208 230 1 60 APPENDIX D WIRING DIAGRAMS ...
Page 72: ...72 Fig E 50KCQ A04 A05 A06 Power Wiring Diagram 208 230 3 60 APPENDIX D WIRING DIAGRAMS ...
Page 73: ...73 Fig F 50KCQ A04 A05 A06 Power Wiring Diagram 460 3 60 APPENDIX D WIRING DIAGRAMS ...
Page 74: ...74 Fig G 50KCQ A04 A05 A06 Power Wiring Diagram 575 3 60 APPENDIX D WIRING DIAGRAMS ...
Page 75: ...75 Fig H 50KCQ Premier Link Control Diagram APPENDIX D WIRING DIAGRAMS ...
Page 76: ...76 Fig I 50KCQ RTU Open Control Diagram APPENDIX D WIRING DIAGRAMS ...
