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Technical Instructions
Document Number 155-027P25
February 14, 2005
Specifications
Operating
Physical
Accessories
Page 2
Table 1. Product Numbers.
Product Numbers
Direct Action
Reverse Action
186-0013
186-0019
186-0087
186-0088
-
186-0090
-
186-0091
Direct or Reverse Acting Range
Maximum Operating Temperature
Sensitivity (adjustable)
Normal Supply Pressure
Maximum Supply Pressure
Air Consumption
Effect of 10° F Temperature Change
Effect of 5 psi Supply Pressure Change
(mid-sensitivity)
Air Capacity (time rating per 155-202P25
(TB-113)
Dimensions, Room Type
Standard Room Cover Finish
Dimensions, Duct Type
Air Connections
Membrane Element Kit
Restrictor Plate Kit (Pkg. of 10)
Calibration Tool (Pkg. of 5)
HU 186 Room and Duct Hygrostats
Model
Maximum
Dry Bulb Temp.
Room
135°F
Duct
140°F
See Table 1
See Table 1
1/4 to 4 psi per 1% rh
(1.7 to 28 kPa per 1% rh)
15 to 25 psig (103 to 172 kPa)
30 psig (207 kPa)
20 scim (5.5 ml/s)
Shift of 1% rh
Shift of 1% rh
0.7 min/vol unit
See Figure 9
Desert Beige
See Figure 10
Barb fitting for 1/4-inch
(6.4 mm) OD Poly Tubing
186-062
180-893
192-632
Control
Range (rh)
20 to 90%
55 to 95%
25 to 65%
Siemens Industry, Inc.
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