HP N2H3, H2H3 manual Thermostat Wiring Connections

INSTALLATION INSTRUCTIONS

Thermostat Wiring Connections

Route thermostat wiring through rubber grommet in bottom of Control Box. Low voltage lead wires are provided in the control box for connection to thermostat wires (use wire nuts). Refer to Wiring Diagram on unit and Figure 13 for low voltage wiring examples.

3-phase R-22 Split System Heat Pump

NOTE: Use No. 18 AWG (American Wire Gage) color-coded, insulated (35 °C minimum) wire. If thermostat is located more than 100 feet (30.5 m) from unit as measured along the control voltage wires, use No. 16 AWG color-coded wires to avoid excessive voltage drop.

Figure 13		Typical Thermostat (Control Circuit) Connections
	NOTE: WHEN USING OUTDOOR THERMOSTATS, W2 MUST BE ENERGIZED WHEN REQUESTING SUPPLEMENTAL HEAT.
	SYSTEMS WITH ONE OUTDOOR THERMOSTAT					SYSTEMS WITH TWO OUTDOOR THERMOSTATS
THERMOSTAT	INDOOR	OUTDOOR	DEFROST	THERMOSTAT		INDOOR		OUTDOOR	DEFROST
SUBBASE	SPLICE	SPLICE	BOARD	SUBBASE		SPLICE		SPLICE	BOARD
	CONNECTION	CONNECTION				CONNECTION		CONNECTION
	W 3					W 3			ODT
	C	C				C	SHR	C
C				C
W 2	W2E	W 2				W 2		W 2
				W 2
			ODT
L				L
	G					G
G				G		SHR
		Y						Y
Y				Y
						E			ODT
E				E	EHR
								O
		O
O				O
						R		R
	R	R
R				R
	REMOVE WIRES FROM CRIMP NUT IN INDOOR FAN COIL WHEN INSTALLING OUTDOOR THERMOSTATS.
	SYSTEMS WITHOUT OUTDOOR THERMOSTATS
	THERMOSTAT	INDOOR	OUTDOOR
		SPLICE	SPLICE	DEFROST
	SUBBASE	CONNECTION	CONNECTION	BOARD
								LEGEND
		C	C				24
	C
		W 2	W 2				24 FIELD WIRING
	W 2
							FIELD SPLICE CONNECTION
	L						OUTDOOR THERMOSTAT
		G
	G					EHR	EMERGENCY HEAT RELAY
			Y
	Y					SHR	SUPPLEMENTAL HEAT RELAY
	E
			O
	O
		R	R
	R
10								506 01 5001 00