Carrier PC 111 - Page 6

6
Table 3 — Output Pin and Terminal Assignments
LEGEND *Circuit 1.
†Circuit 2.
**U2 is not used on 044 units.
††OFC2 on 034-048 units; OFC3 on 054-104 units.
||
Used on 054-104 units only.
OUTPUT PIN-
TERMINAL
NAME RATING DEVICE
J6-1
Stage 1
Compressor Relay (K1)*
24 vac
CR1
J6-2
Stage 2
Compressor Relay (K2)*
U2**
J6-3
Stage 3
Compressor Relay (K3)*
U1
J6-4
Compressor Relay (K4)† Not Used
J6-5
Stage 5
Compressor Relay (K5)†
CR2
J6-6
Stage 6
Compressor Relay (K6)†
Not Used
J6-7
Economizer Open Relay (K7) EOR
J6-8
Economizer Close Relay (K8) ECR
J5-1
Supply Fan Relay (K9)
115 vac
IFC
J5-2
Morning Warm-Up Relay (K10) HIR
J5-3
Stage 1 Condenser
Fan Relay (K11)
OFC2/OFC3††
J5-4
Stage 2 Condenser
Fan Relay (K12)
OFC4||
J5-5
External Alarm Relay (K13) ALM
ALM —
Alarm
CR —
Control Relay
ECR —
Economizer Close Relay
EOR —
Economizer Open Relay
HIR —
Heat Interlock Relay
IFC —
Indoor (Evaporator) Fan Contactor
OFC —
Outdoor (Condenser) Fan Contactor
U—
Unloader
Fig. 5 — Relay Board
LEGEND
CR —
Control Relay
J—
Terminal Pin Connectors
K—
Relay