Enthalpy setpoint adjustment, Honeywell economizer control w7212, Figure 4 - enthalpy setpoint adjustment – Johnson Controls SUNLINE 2000 BQ 060 User Manual

Page 13

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Johnson Controls Unitary Products

13

FIGURE 4 - ENTHALPY SETPOINT ADJUSTMENT

40

(4)

70

(21)

50

(10)

55

(13)

60

(16)

65

(18)

35

(2)

45

(7)

75

(24)

80

(27)

35

(2)

40

(4)

45

(7)

50

(10)

55

(13)

60

(16)

65

(18)

70

(21)

75

(24)

80

(27)

85

(29)

85

(29)

90

(32)

90

(32)

105

(41)

110

(43)

100

(38)

95

(35)

95

(35)

100

(38)

105

(41)

110

(43)

APPROXIMATE DRY BULB TEMPERATURE -

0

F (

0

C)

D

D

C

C

B

B

A

A

CONTROL

CURVE

CONTROL POINT

APPROX.

0

F (

0

C)

AT 50% RH

A

D

C

B

63 (17)

73 (23)

70 (21)

67 (19)

FIGURE 5 - HONEYWELL ECONOMIZER CONTROL W7212

N1

N

P1

P

EXH

Set

EXH

Min

Pos

IAQ

Max

IAQ

IAQ
Min

Free

Cool

T

T1

AQ1

AQ

SO+

SO

SR+

SR

A

B

C

D

TR

TR1

24

Vac

HOT

24

Vac

COM

EF

EF1

2

3

4

5

1

+

Exhaust Air
Adjustment

Screw

Exhaust Air LED

Damper Min.

Position

Screw

Indoor Air Quality

Max. Adjustment

Screw

Indoor Air Quality

LED

Indoor Air Quality

Min. Adjustment

Screw

Free Cooling LED

Economizer Enthalpy
Set Point Adjustment

Screw

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