Bryant 581A/B manual Typical Wiring Schematics 581B, EconoMi$er IV Wiring 581B036-150 Units

TYPICAL WIRING SCHEMATICS — 581B (cont)

581B036-150

a48-7910

LEGEND	NOTE:		ECONOMIZER NOTES:
IAQ — Indoor Air Quality	Potentiometer Defaults Settings:		1.	620 ohm, 1 watt 5% resister should be removed only when using differential
	Power Exhaust	Middle		enthalpy or dry bulb.
LA — Low Ambient Lockout Device
	Minimum Pos.	Fully Closed	2.	If a separate field supplied 24v transformer is used for the IAQ sensor
POT — Potentiometer
	DCV Max.	Middle		power supply, it cannot have the secondary of the transformer grounded.
OAT — Outdoor-Air Temperature
	DCV Set	Middle	3.	For field installed remote minimum position POT, remove black wire jumper
RAT — Return-Air Temperature
	Enthalpy	C Setting		between P and P1 and set control minimum position POT to the minimum

position.

EconoMi$er IV Wiring — 581B036-150 Units

			BLACK	4
				3
				5
			BLUE	2
	500 OHM			8
	RESISTOR
		VIOLET		6
NOTE 1
		PINK		7
	RUN
	-		RED	1
NOTE 2
	+			10
50HJ540573
	SENSOR 4 - 20 mA	YELLOW
ACTUATOR				11
ASSEMBLY	OPTIONAL CO2
	OUTPUT			9
	DIRECT DRIVE		WHITE	12
	ACTUATOR

a48-8209

NOTES:

ECONOMISER2 PLUG

1.Switch on actuator must be in run position for economizer to operate.

2.50HJ540573 actuator consists of the 50HJ540567 actuator and a harness with 500-ohm resistor.

EconoMi$er2 Wiring — 581B036-150 Units

136