Carrier Omnizone 50BVC - Page 27

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Fig. 21 — Typical Wiring 40 to 60 Ton Units (Two-Stage Cooling)
C O Y1 Y3 R G C O Y2 Y4
C O Y1 Y2 R G
PR2
PR1
PR1
PR2
FIELD-SUPPLIED THERMOSTAT
UNIT MODULE ‘A’ UNIT MODULE ‘B’
Remote Condenser Units Only
PR1
PR2
FC1-4 FC1-5
FC1-4 FC1-5
(#1)
(#2)
R
G
LEGEND
FC — Fan Contactor
PR — Pilot Relay