Siemens POWERS 134-1861 Technical Instructions

May 9, 2019 134-1861 Humidistat Siemens Industry, Inc. Part No 24-8466-00036 Rev. A Description The 134-1861 Humidistat controls humidifying and/or dehumidifying equipment. Typical uses include the control of humidity by ventilation, air conditioning, humidifiers, and dehumidifiers in resident ...

Document Number A6V11435226 May 9, 2019 Page 2 Siemens Industry, Inc. Introduction The 134-1861 Humidistat provides SPDT control for use on low or line voltage applications. It has a thermoplastic cover with an Allen-head locking screw to discourage unauthorized tampering. The sensing element consist ...

Technical Instructions Document Number A6V11435226 May 9, 2019 Siemens Industry, Inc. Page 3 Specifications Contact ratings 120 Vac 208 Vac 240 Vac Full load ampere 6.0 3.5 3.0 Locked rotor ampere 36.0 21.0 18.0 Pilot duty 125 VA at 24/277 Vac Switch action SPDT Switch Snap-acting in a dust-protected enclosure Range 0 to 7 ...

Document Number A6V11435226 May 9, 2019 Page 4 Siemens Industry, Inc. Installation CAUTION: Do not remove the humidistat cover during installation. The sensing element must be carefully protected against accidental damage. All wiring and mounting can be completed without removing the cover. WARNING: ...

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 f ...

Document Number A6V11435226 May 9, 2019 Page 6 Siemens Industry, Inc. Figure 5. Schematic Wiring Diagram of a 134-1861 Automatically Operating a Humidifier or Dehumidifier as Selected by the Manual Changeover Switch. Figure 6. Schematic Wiring Diagram of a 134-1861 Automatically Operating an Exhaus ...

Technical Instructions Document Number A6V11435226 May 9, 2019 Siemens Industry, Inc. Page 7 Low Range Stop 1. Set the adjustment knob to the minimum 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. ...

Document Number A6V11435226 May 9, 2019 Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and models as design improvements are introduced. POWERS is a registered trademark of Siemens Industry, Inc. Other product or co ...