Example:

 

Given Ð

 

Negative Pressure

0.1 in. wg

Outdoor Air¯ow

. 1100 cfm

Determine Ð

 

Setting = 6

 

Fig. 24 Ð Durablade Economizer Damper

Minimum Position Setting

9

8

7

6

5

4

3

2

1

0

Fig. 25 Ð Durablade Economizer Minimum

Position Damper Setting

 

 

 

 

 

 

 

B

REV

 

 

 

 

 

 

 

 

.

 

 

MINIMUM

 

 

 

 

 

B

 

 

 

 

 

 

C

1

 

 

 

 

 

 

9

OPEN

 

 

 

D

S

TR

8

 

 

S

O

1

 

 

 

 

 

 

8

 

POSITION

1

 

 

 

 

A

 

T

3

 

 

 

 

 

P

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T1

4

2

5

 

 

 

 

P1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30

60

70

 

 

AT

CONTACT

OR

CONTACTS

3

 

 

 

 

 

 

 

 

UH%

 

RUSH

 

 

 

 

 

 

 

 

 

ID IM

90

 

 

UNPOWERED

 

 

 

 

 

 

50

 

 

 

 

C

24VAC

 

 

 

 

 

 

 

YT

 

 

 

 

 

 

 

 

 

 

 

 

ENTHALPY

 

60

 

 

DAMPER

 

 

 

 

5A

STATE

 

2

 

 

 

10

 

 

 

 

D

CW

 

RATINGS:

 

SHOWN

 

 

TR

 

OUTDOOR

55

 

 

OPEN

 

B

SETPOINTS

 

 

 

 

24VAC

 

 

 

 

 

 

3 .

 

HIGH

 

 

 

 

 

 

 

 

 

 

A

 

 

1

 

IN

 

 

 

 

 

75

 

 

 

CLOSED DAMPER

 

mA

RUN,

 

 

1

 

TR1

CONTROL

 

 

 

 

 

 

 

 

F

 

 

 

 

VDC

 

 

 

TEMP

65 70

 

 

 

 

 

CCW

MIN

 

ENTHALPY

 

 

 

 

°

 

 

 

 

 

 

11

IN

 

 

 

 

 

 

 

 

 

 

 

 

.

3

 

 

 

 

 

 

.

 

 

 

 

 

 

 

AT

5A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

.

 

 

 

 

 

 

 

80

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

85

 

REV.

97-3672

 

 

 

 

 

 

 

 

 

Fig. 26 Ð Outdoor-Air Thermostat/

Enthalpy Control Installation

Fig. 27 Ð Wiring Connections for

Outdoor-Air Thermostat

14

Page 14
Image 14
Carrier 48TJF008-012, 48TJE008-014, 48TJD008-014 Durablade Economizer Damper Minimum Position Setting

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