Johnson Controls PENN W43A14 Manual Download

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W43A Humidistat Product/Technical Bulletin

Dimensions

2.96

1.28

0.69

6-32 Mounting

Screws (2 Places)

1.27

0.25

1.59

4.71

120

2.34

3.22

1.20

1.41

0.80

Figure 2: W43A Dimensions (in./mm)

Mounting and Wiring

Optional

Concealed

Adjustment

Faceplate

Adjustment

Knob

Mounting Plate

Locking Screw

Vertical

Faceplate

Mounting

Plate

Wall

Box

Cover

Locking Screw

Grounding

Screw

Figure 3: W43A Humidistat

Summary of Contents for PENN W43A14

Page 1: ...g contacts rated to switch 1 4 hp motors It has a wide setpoint range of 0 to 70 Relative Humidity RH as well as off dial positions for humidification and dehumidification The differential of the W43A is fixed at approximately 6 RH Figure 1 W43A Humidistat with Vertical Faceplate Features and Benefits Human Hair Sensing Element Provides stable accurate measurement 1 4 hp 6A Rated Contacts Permits ...

Page 2: ...uit is open and the C to L terminal controls the humidification equipment At any given setpoint the C to L circuit closes on a decrease in relative humidity and the C to H circuit closes on an increase in relative humidity The usual setting in winter is 30 to 40 RH Lower settings may be necessary in extremely cold weather to prevent condensation on windows doors etc The same setting should be used...

Page 3: ...1 27 32 0 25 6 1 59 40 4 71 120 2 34 59 3 22 82 1 20 30 1 41 36 0 80 20 Figure 2 W43A Dimensions in mm Mounting and Wiring Optional Concealed Adjustment Faceplate Adjustment Knob Mounting Plate Locking Screw Vertical Faceplate Mounting Plate Wall Box Cover Locking Screw Grounding Screw Figure 3 W43A Humidistat ...

Page 4: ... back of the humidistat See Wiring Diagrams section Note Use the terminal screws furnished 8 32 x 1 4 in binder head Substitution of other screws may cause problems in making proper connections 6 Connect the grounding provision of the humidistat to the branch circuit ground 7 Hook the two slots in the humidistat base over the projections on the mounting plate and swing the humidistat into place Pu...

Page 5: ...ures to set the high and low range stops High Range Stop 1 Set the adjustment knob to the maximum desired RH setting 2 Pull the adjustment knob off the humidistat cover 3 Loosen the bottom cover screw and remove the humidistat cover CAUTION Equipment damage hazard Avoid contact with human hair sensing element Contact with hair element can affect control accuracy and or product life 4 While holding...

Page 6: ...e bottom cover screw and remove the humidistat cover CAUTION Equipment damage hazard Avoid contact with human hair sensing element Contact with hair element can affect control accuracy and or product life 4 While holding the dial firmly in place keeping the setting in line with the calibrating mark depress the tab A and rotate it counterclockwise until it is against the stop C Depress the tab B an...

Page 7: ...ontrols Catalog Concealed Adjustment Faceplates Concealed adjustment faceplates are available on factory order at no extra cost For field changeover use the concealed faceplate kit and install directly over the faceplate on the cover See Table 3 for ordering information Table 3 Optional Accessories Item Product Code Number Concealed Adjustment Faceplate Vertical Mounting PLT333 12R Concealed Adjus...

Page 8: ...arge 8 32 x 1 4 in Binder Head Screws Minimum Ambient Temperature 40 4 4 C Maximum Ambient Temperature 100 F 38 C Agency Listings UL Guide No XAPX File E6688 CSA Class No 4813 02 File LR948 Dimensions H x W x D 4 71 x 2 96 x 2 94 in 120 x 75 x 75 mm Shipping Weight 0 9 lb 0 4 kg The performance specifications are nominal and conform to acceptable industry standards For application at conditions be...

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