LG Electronics 395CAV installation instructions Ðelectrical Data, Ð8Ð, Sequence of Operation

FIELD 24-VOLT WIRING

FIELD 115-, 208/230-, 460-VOLT WIRING

FACTORY 24-VOLT WIRING

FACTORY 115-VOLT WIRING

				NOTE 2				THERMOSTAT
		FIVE		W	C R	G	Y		FIELD-SUPPLIED
								TERMINALS
		WIRE							FUSED DISCONNECT
		THREE-WIRE							208/230- OR
		HEATING-
		ONLY							460-VOLT
									THREE
BLK	BLK			W					PHASE
WHT	WHT			R
									208/230-
	GND	GND							VOLT
115-VOLT FIELD- AUXILIARY				G					SINGLE
									PHASE
	SUPPLIED	J-BOX		C	NOTE 1				GND
	FUSED	CONTROL		Y				CONDENSING
DISCONNECT		BOX						UNIT
			24-VOLT					TWO
		TERMINAL						WIRE
			BLOCK		NOTES: 1.		Connect Y-terminal as shown for proper operation.
		FURNACE
						2.￿ Some thermostats require a "C" terminal connection as shown.

3.If any of the original wire, as supplied, must be replaced, use same type or equivalent wire.

							A95241
		Fig. 8ÐHeating and Cooling Application Wiring Diagram
			TABLE 5ÐELECTRICAL DATA
	VOLTSÐ	OPERATING					MAXIMUM
		VOLTAGE RANGE		MAXIMUM	MINIMUM	MAXIMUM	FUSE OR
UNIT SIZE	HERTZÐ
				UNIT AMPS	WIRE GAGE	WIRE LENGTH (FT)³	HACR-TYPE CKT
	PHASE	Maximum*	Minimum*
							BKR AMPS²
024045	115Ð60Ð1	127	104	6.0	14	47	15
036045	115Ð60Ð1	127	104	8.3	14	34	15
024070	115Ð60Ð1	127	104	5.9	14	47	15
036070	115Ð60Ð1	127	104	8.7	14	32	15
042091	115Ð60Ð1	127	104	9.0	14	31	15
048091	115Ð60Ð1	127	104	10.4	14	27	15
036110	115Ð60Ð1	127	104	8.0	14	35	15
048111	115Ð60Ð1	127	104	10.1	14	28	15
060111	115Ð60Ð1	127	104	14.4	12	31	20
048135	115Ð60Ð1	127	104	10.1	14	28	15
060135	115Ð60Ð1	127	104	13.3	12	33	20
060155	115Ð60Ð1	127	104	14.0	12	31	20

*Permissible limits of the voltage range at which the unit operates satisfactorily. ² Time-delay fuse is recommended.

³ Length shown is as measured 1 way along wire path between unit and service panel for maximum 2 percent voltage drop.

The furnace must have a 115-v power supply properly connected and grounded. Proper polarity must be maintained for correct operation. Thermostat wire connections at R, W, C, and Y must be made at the 24-v terminal block on the control board. The gas service pressure must not exceed 0.5 psig (14-in. wc), but must be no less than 0.16 psig (4.5-in. wc).

CAUTION: This furnace is equipped with a manual reset limit switch or fuse link in the gas control area. The switch or fuse link opens and shuts off power to the gas valve if a flame rollout or overheating condition occurs in the gas control area. DO NOT bypass the switch. Correct inadequate combustion air supply problem and reset the switch or replace the fuse link.

Before operating the furnace, check each manual reset switch for continuity. If necessary, press the button to reset the switch.

Ð8Ð

The blower compartment door must be in place to complete the 115-v circuit to the furnace.

B. Sequence of Operation

CAUTION: Furnace control must be grounded for proper operation, or control will lockout. Control is grounded through green wire routed to gas valve and burner bracket screw.

Using the schematic diagram shown in Fig. 11, follow the sequence of operation through the different modes. Read and follow the wiring diagram very carefully.

NOTE: If there is a power interruption and any thermostat call, the control initiates a 90-sec blower only on period before starting another cycle.