Carrier 48HJ015-025 installation instructions LEGEND FOR and

LEGEND FOR FIG. 38 and 39

AHA	Ð Adjustable Heat Anticipator	IFM	Ð Indoor (Evaporator)	TH	Ð Thermostat Heating
BKR W/AT Ð Breaks with Amp Turns			Fan Motor	TRAN Ð Transformer
C	Ð Contactor, Compressor	IFR	Ð Indoor (Evaporator)		Terminal (Marked)
CB	Ð Circuit Breaker		Fan Relay
CC	Ð Cooling Compensator	IP	Ð Internal Protector
CH	Ð Crankcase Heater	L	Ð Light		Terminal (Unmarked)
CLO	Ð Compressor Lockout	LOR	Ð Lockout Relay
CLS	Ð Compressor Lockout Switch	LPS	Ð Low-Pressure Switch		Terminal Block
COMP	Ð Compressor Motor	LS	Ð Limit Switch
CR	Ð Control Relay	MAT	Ð Mixed-Air Thermostat		Splice
CT	Ð Current Transformer	MGV Ð Main Gas Valve
DM	Ð Damper Motor	NEC	Ð National Electrical Code		Splice (Marked)
DU	Ð Dummy Terminal	OAT	Ð Outdoor-Air Thermostat
EQUIP	Ð Equipment	OFC	Ð Outdoor (Condenser)
FPT	Ð Freeze Protection		Fan Contactor		Splice (Field Supplied)
	Thermostat	OFM Ð Outdoor (Condenser)
FU	Ð Fuse	PGV	Fan Motor		Factory Wiring
GND	Ð Ground		Ð Pilot Gas Valve
HPS	Ð High-Pressure Switch	PL	Ð Plug Assembly		Field Control Wiring
HR	Ð Heat Relay	PRI	Ð Primary
HV	Ð High Voltage	PS	Ð Pressure Switch		Field Power Wiring
I	Ð Ignitor	QT	Ð Quadruple Terminal
ICP	Ð Ignitor Control Pack	R	Ð Relay		Accessory or Optional Wiring
IDM	Ð Induced-Draft Motor	RS	Ð Rollout Switch		To Indicate Common Potential Only,
IDR	Ð Induced-Draft Relay	SN	Ð Sensor
IFC	Ð Indoor (Evaporator)	SW	Ð Switch		Not To Represent Wiring
	Fan Contactor	TB	Ð Terminal Block
IFCB	Ð Indoor (Evaporator)	TC	Ð Thermostat Cooling
	Fan Circuit Breaker	TDR	Ð Time Delay Relay

NOTES:

1.Compressor and fan motors thermally protected; 3-phase motors protected against primary single-phasing conditions.

2.If any of the original wire furnished must be replaced, it must be replaced with type 90 C wire or its equivalent.

3.Jumpers are omitted when unit is equipped with economizer.

4.Set thermostat heat anticipator(s):

UNIT	W1	W2	VOLTAGE
48HJD015	1.20	Ð	All
48HJD025, HJE015,	1.20	0.60	All
HJE017

5.CB must-trip amps are equal to or less than 140% full load amps.

6.Number(s) indicates the line location of used contacts. A bracket over (2) numbers signi®es a single-pole, double-throw contact. An underlined number signi®es a normally-closed contact. A plain (no line) number signi®es a normally-open contact.

7.The CLO locks out the compressor to prevent short cycling on com- pressor overload and safety devices. Before replacing CLO, check these devices.

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