Technical Instructions
QFA1000, QFA1001 Room Hygrostats
Document Number 155-708
July 19, 2010
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. Product or company names mentioned herein may be the trademarks of their respective owners.
© 2010 Siemens Industry, Inc.
Siemens Industry, Inc.
Building Technologies Division
1000 Deerfield Parkway
Buffalo Grove, IL 60089-4513
U.S.A.
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Materials and colors
Base
PPS, Fortron, fiberglass reinforced,
Black
Cover
PC Lexan 940, pure-white
Humidity measuring element
Plastic
Standards
conformity
EMC directive
89/336/EEC
UL
UL873
cUL
Canadian Standard C22.2 No. 24-93
Weight
QFA1001
3.17 ounces (0.090 kg)
QFA1000
3.17 ounces (0.090 kg)
Wiring Diagrams
Internal Diagram
1-2 Humidification
1-3 Dehumidification
Wiring Diagrams
Figure 3. Humidification.
Figure 4. Dehumidification.
Dimensions
Figure 5. Dimensions in Inches (Millimeters).
Document No. 155-708
Printed in the U.S.A.
Page 4
