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Siemens POWERS 134-1861 Technical Instructions Download Page 5

POWERS Controls 134-1861 Humidistat 

Technical Instructions 

 

Document Number A6V11435226 

 

May 9, 2019 

Siemens Industry, Inc.

 

 

 

Page 5 

 

 

Mounting and 
Installation, 
continued 

(Optional) Horizontal 
Faceplate Installation 

1.  Mount and wire the humidistat. See 

Installation

. 

2.  Pull the adjustment knob off the humidistat cover. 

3.  Peel off the backing of the horizontal faceplate. 

4.  Position the horizontal faceplate over the factory-installed vertical faceplate. Ensure 

that the plate is positioned straight and even to over the existing plate. 

5.  Firmly press the horizontal faceplate onto the humidistat cover. 

6.  Replace the adjustment knob. 

The installation is now complete. 

Wiring Diagrams 

 

 

Figure 2.  Typical Wiring Diagram of a 134-1861 Used to Reduce Excessive 

Humidity in a Well-Constructed Building by Manual or Automatic Control of an 

Exhaust Fan. 

 

 

Figure 3.  Dehumidification Control Wiring Diagram. 

 

 

Figure 4.  Humidification Control Wiring Diagram. 

 

Summary of Contents for POWERS 134-1861

Page 1: ...ion and dehumidification The differential of the 134 1861 is fixed at approximately 6 RH Features Human Hair Sensing Element Provides stable accurate measurement 1 4 HP 6A Rated Contacts Permit direct operation of many fans in commercial applications High low Adjustable Knob Range Stops Allow adjustments within a desired range Enclosed Pennswitch Provides dust protection for contacts Mounting Plat...

Page 2: ...or systems alarm supervisory systems that protect against or warn of control failure Operation The humidistat has a setpoint range of 0 to 70 RH as well as humidification off HUM OFF and dehumidification off DEH OFF positions At the HUM OFF position the C to L terminal circuit is open and the C to H terminal circuit is closed At the DEH OFF position the C to H terminal circuit is open and the C to...

Page 3: ...ed Cover Brown markings on goldanodized aluminum Mounting Vertical or horizontal 2 4 in 51 102 mm wall box Wiring terminals Large 8 32 1 4 in binder head screws Weight 0 9 lb 0 4 kg Dimensions 4 71 2 96 2 94 in 120 75 75 mm Agency listings UL Guide No XAPX File E6688 CSA Class No 4813 02 File LR948 Mounting and Installation General Guidelines Locate the 134 1861 as follows on an inside wall away f...

Page 4: ...ed Leave approximately 6 inches 152 mm of wire for connection to the humidistat terminals 3 Remove the humidistat mounting plate by loosening the mounting plate locking screw see Figure 1 and lifting and removing the plate from the base 4 Pull wires through the mounting plate and fasten the plate grounding screw end up to the wall box with the screws provided 5 Strip the wires and connect to the p...

Page 5: ...Position the horizontal faceplate over the factory installed vertical faceplate Ensure that the plate is positioned straight and even to over the existing plate 5 Firmly press the horizontal faceplate onto the humidistat cover 6 Replace the adjustment knob The installation is now complete Wiring Diagrams Figure 2 Typical Wiring Diagram of a 134 1861 Used to Reduce Excessive Humidity in a Well Cons...

Page 6: ...e following procedures 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 the human hair sensing element Contact with the hair element can affect control accuracy and or pr...

Page 7: ...see Figure 7 and rotate it clockwise until it is against the stop pin C 5 Release the tab making sure it fits into the nearest notch 6 Replace the humidistat cover tighten the bottom cover screw and replace the adjustment knob 7 Rotate adjustment knob to desired normal operating setpoint Figure 7 134 1861 Humidistat Range Tabs and Stop Dial Lock The high and low range stops can be set to keep the ...

Page 8: ... 8 Dial Lock Continued 4 While holding the dial firmly in place keep the setting in line with the calibrating mark press Tab A and rotate it counterclockwise until it is against Stop Pin C Press Tab B and rotate it clockwise until it is against Stop Pin C See Figure 7 5 Ensure each tab fits into the notch closest to the stop 6 Replace the humidistat cover tighten the bottom cover screw and replace...

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