Bryant 581A EconoMi$er IV Sensor Usage, Supply-AirTemperature Sensor Location, Set Points

DAMPER

ASSEMBLY

WIRE

HARNESS

DAMPER	WIRE TIES
ACTUATOR
	PL7

OUTDOOR AIR

TEMPERATURE

SENSOR

ECONOMIZER BLOCK OFF

PL7

OUTSIDE AIR

ENTHALPY

SENSOR

INDOOR AIR

ENTHALPY

SENSOR

Fig. 23 — EconoMi$er IV Component Locations (Exploded View)

mA

SAT LOCATION

19

18	LED ON
			D
17
16		LED OFF		LED ON
					C
15
14				LED OFF			LED ON
13								B
12							LED OFF		LED ON
											A
11
10										LED OFF
9												100
40	45	50	55	60	65	70	75	80	85	90	95
				DEGREES FAHRENHEIT

Fig. 24 — Supply-Air Temperature Sensor Location	Fig. 25 — Outdoor-Air Temperature Changeover
	Set Points

Table 28 — EconoMi$er IV Sensor Usage

	ECONOMI$ER IV WITH OUTDOOR AIR	ECONOMI$ER IV WITH SINGLE
APPLICATION	DRY BULB SENSOR	ENTHALPY SENSOR
	Accessories Required	Accessories Required
Outdoor Air Dry Bulb	None. The outdoor air dry bulb sensor is factory installed.	CRTEMPSN002A00*
Differential Dry Bulb	CRTEMPSN002A00*	(2) CRTEMPSN002A00*
Single Enthalpy	HH57AC078	None. The single enthalpy sensor is factory installed.
Differential Enthalpy	HH57AC078
	and	CRENTDIF004A00*
	CRENTDIF004A00*
CO2 for DCV Control using a	CGCDXSEN004A00	CGCDXSEN004A00
Wall-Mounted CO2 Sensor
CO2 for DCV Control using a	CGCDXSEN004A00†	CGCDXSEN004A00†
	and	and
Duct-Mounted CO2 Sensor
	CGCDXASP001A00**	CGCDXASP001A00**

*CRENTDIF004A00 and CRTEMPSN002A00 accessories are used on many different base units. As such, these kits may contain parts that will not be needed for installation.

†CGCDXSEN004A00 is an accessory CO2 sensor.

**CGCDXASP001A00 is an accessory aspirator box required for duct-mounted applications.

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