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Page 25
mrcool.com
Unit Installation
Electrical wiring of ESP Air Handler MDUI18024E/MDUI18036E (With & Without Heat Pump)
High ESP Air Handler w/cooling only condenser
High ESP Air Handler w/heat pump condenser
Electrical wiring of ESP Air Handler MDUI18048E/MDUI18060E (With & Without Heat Pump)
High ESP Air Handler w/cooling only condenser
High ESP Air Handler w/heat pump condenser
Fig. 2.18
Fig. 2.19
Fig. 2.20
Fig. 2.21
NOTE: B and D
terminals are
not used in
cooling only
condenser
NOTE: B and D
terminals are
not used in
cooling only
condenser
NOTES:
Y - Compressor control signal for outdoor unit B - 4-way valve control signal (energized in heating mode)
D - Defrosting signal R - 24V AC Power Supply
C - 24V common G - Fan signal for indoor unit
W1 - Heater Control signal
Electrical Connection
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