Carrier JK034-074 Output Pin and Terminal Assignments, Output PIN Name Rating Device Terminal

Table 3 Ð Output Pin and Terminal Assignments

OUTPUT PIN-	NAME	RATING	DEVICE
TERMINAL
J6-1	Stage 1		CR1
	Compressor Relay (K1)*
J6-2	Stage 2		U2**
	Compressor Relay (K2)*
J6-3	Stage 3		U1
	Compressor Relay (K3)*
J6-4	Stage 4	24 vac	Not Used
	Compressor Relay (K4)²
J6-5	Stage 5		CR2
	Compressor Relay (K5)²
J6-6	Stage 6		Not Used
	Compressor Relay (K6)²
J6-7	Economizer Open Relay (K7)		EOR
J6-8	Economizer Close Relay (K8)		ECR
J5-1	Supply Fan Relay (K9)		IFC
J5-2	Morning Warm-Up Relay (K10)		HIR
J5-3	Stage 1 Condenser		OFC2/OFC3 ²²
	Fan Relay (K11)	115 vac
J5-4	Stage 2 Condenser		OFC4
	Fan Relay (K12)
J5-5	External Alarm Relay (K13)		ALM

	LEGEND
ALM Ð Alarm
CR	Ð Control Relay
ECR Ð Economizer Close Relay
EOR Ð Economizer Open Relay
HIR	Ð Heat Interlock Relay
IFC	Ð Indoor (Evaporator) Fan Contactor
OFC	Ð Outdoor (Condenser) Fan Contactor
U	Ð Unloader

*Circuit 1. ²Circuit 2.

**U2 is not used on 044 units.

²²OFC2 on 034-048 units; OFC3 on 054-104 units. Used on 054-104 units only.

LEGEND

CR Ð Control Relay

JÐ Terminal Pin Connectors

KÐ Relay

Fig. 5 Ð Relay Board

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