![background image](http://html1.mh-extra.com/html/carrier/omnizone-50bvc/omnizone-50bvc_installation-start-up-service-and-controls-operation-and-troubleshooting_2561409027.webp)
27
Fig. 21 — Typical Wiring 40 to 60 Ton Units (Two-Stage Cooling)
C
O
Y1
Y
3
R
G
C
O
Y2
Y4
C
O
Y1
Y2
R
G
PR2
PR1
PR1
PR2
FIELD-
S
UPPLIED THERMO
S
TAT
UNIT MODULE ‘A’
UNIT MODULE ‘B’
Remote Conden
s
er Unit
s
Only
PR1
PR2
FC1-4
FC1-5
FC1-4
FC1-5
(#1)
(#2)
R
G
LEGEND
FC —
Fan Contactor
PR —
Pilot Relay