Honeywell W7340 User Manual

Page 10

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W7340, W7345 COMMUNICATING ECONOMIZER LOGIC MODULES

63-2569—04 10

Fig. 10. W7340 Performance Characteristics for Enthalpy Changeover Settings.

Table 3. W7345 Performance Characteristics

for Temperature Changeover Settings.

CONTROL

CURVE

A
B
C
D
E

CONTROL POINT

APPROX. °F (°C)

AT 50% RH

73 (23)
70 (21)
67 (19)
63 (17)
55 (13)

12 14 16 18 20 22 24 26 28 30 32 3

4 36 38 40 42

44 46

90

100

80

70

60

50

40

30

20

10

ENTHALPY—BTU PER POUND DR

Y AIR

85

(29)

90

(32)

95

(35)

100

(38)

105

(41)

110

(43)

35

(2)

35

(2)

40

(4)

40

(4)

105

(41)

110

(43)

45

(7)

45

(7)

50

(10)

50

(10)

55

(13)

55

(13)

60

(16)

60

(16)

65

(18)

65

(18)

70

(21)

70

(21)

75

(24)

75

(24)

80

(27)

80

(27)

85

(29)

90

(32)

95

(35)

100

(38)

APPROXIMATE DRY BULB TEMPERATURE— °F (°C)

A

A

B

B

C

C

D

D

M23879

RELA

TIVE HUMIDITY

(%)

1

1

HIGH LIMIT CURVE FOR W7210D, W7212, W7213, W7214, W7340B.

E

E

Temperature

Changeover Setting

Approximate Control Point

°F

°C

A

73

23

B

70

21

C

67

19

D

63

17

E

55

13

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