York 12, 10, 13 AND 14 SEER manual Low Voltage

035-13606-003 Rev. A (202)

LOW VOLTAGE

Control wiring may vary depending upon the type of thermo- stat and furnace being connected.

Low voltage wiring diagrams can be found with the furnace or air conditioning blower package installation instructions.

Pig-tail connector wires (2 blue or 1 blue, 1 brown) are pro- vided from the low voltage pull-in coil on the contactor to a section of the control box (See Figure 12). A “Fingered” bush- ing is provided in the low voltage knockout hole. If 1/2" con- duit is used for the low voltage wiring, the bushing is to be removed.

1.Route the low voltage cable through the fingered bush- ing in the low voltage junction box. See Figures 9, 10 & 11.

2.Using wire nuts, connect the low voltage wiring within the low voltage box.

3.A minimum of 19 AWG wire must be used in connecting the low voltage control wiring between the outdoor unit, air handler thermostat, and outdoor thermostat. For longer low voltage control wiring lengths, consult the N.E.C.

Connect thermostat and control package wiring as shown in Figure 12 and per the instructions packed with those pieces.

START RELAY	CONTACTOR
(Not on all Models)
DUAL
RUN/FAN	FAN
CAPACITOR
	MOTOR
	PLUG
START
CAPACITOR	LOW
(Not on all Models)
	VOLTAGE
	BOX
GROUND	“FINGERED”
	BUSHING
LUG
	REVERSIBLE HIGH VOLTAGE
	CONDUIT PLATE
FIGURE 3 : Typical Condensing Unit Control Box (Start Components Shown)

	START RELAY
	CONTACTOR
	DUAL
	RUN/FAN
	CAPACITOR
LOW
VOLTAGE	FAN
BOX
	MOTOR
	PLUG
“FINGERED”
BUSHING
GROUND LUG	ADJUSTABLE HIGH VOLTAGE
	CONDUIT PLATE

FIGURE 4 : Typical Condensing Unit Control Box (Start Components Shown)

Unitary Products Group 7