Bryant 580D Accusensor Control, Only, Power Exhaust 180-300 Shown Accusensor Sensor, Thermostat

ACCUSENSOR™ II

CONTROL

(036-150 Only)

B

REV

.

OPEN

POSITIONMINIMUM

B

A

C

1

S

TR

1

D

8

S

O

8

T

3

1

P

T1

4

2

5

P1

YT ID

D

RUSH

CONTACT

OR

CONT

3

TR

10 30 60

AT

ACTS

50

IMUH%

–

24VAC

UNPOWERED

SHO

C

OUTDOOR

60

70

90

CW

mA

5A

STATE

HIGH

2

ENTHALPY

DAMPER

RATINGS:

55

B

SETPOINTS

WN

24VAC

3 .

OPEN

A

1

IN

CONTROL

CLOSED

VDC

F

75

DAMPER

RUN,

1

TR1

65 70

.

CCW

MIN

IN

ENTHALPY

°

11

TEMP

–

AT

3

.

.

5A

80

85

REV.

97-3672

OPTIONS AND ACCESSORIES (cont)

POWER EXHAUST (180-300 SHOWN)

ACCUSENSOR III

SENSOR

+

When used with accessory/optional economizer, the power exhaust accessory helps to relieve building over-pressurization.

NOTE: This accessory is not available with horizontal supply adapter.

Accusensor economizer controls help provide efficient, economical economizer operation. Accusensor II solid-state enthalpy control in- cludes the logic and one sensor to calculate both dry- and wet-bulb of the outdoor air to provide an accurate enthalpy reading on 036-150 units. It then decides when to energize the economizer based on this reading. The 180-300 unit economizer provides the decision-making function internally, and requires one Accusensor III sensor for solid-state enthalpy sensing. A second Accusensor III sensor (required for all units for differential enthalpy sensing) compares outdoor temperature and hu- midity to return-air temperature and humidity and determines the most economical mixture of air (purchased in addition to enthalpy control [sizes 036-150] or to ®rst solid-state enthalpy sensor [sizes 180-300] for differential enthalpy sensing).

THERMOSTAT

H C

Thermostat (24 v) provides one- or 2-stage cooling for control of unit. Matching subbases are available with or without tamperproof switches and automatic changeover.

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