RAB20 Series Two-pipe Fan Coil Room Thermostat Technical
Instructions
Document Number 155-526P25
March 2, 2007
Siemens Building Technologies, Inc.
Page 3
Warning/Caution Notations
WARNING:
Personal injury, or loss of life may occur if you do
not perform a procedure as specified.
Specifications
Operating voltage
24 to 120 Vac, 277 Vac
Frequency 50/60
Hz
Setpoint adjustment range
50°F to 85°F (10°C to 30°C)
Setpoint limit stops
Adjustable
Switching differential (SD)
≤
1.8°F (1°C), fixed
Switch rating
6A RES, 3.5A FLA, 12A LRA
Switch action
Single-Pole, Double-Throw (SPDT)
Output
2-position (On/Off)
Weight
5 oz. (0.14 kg)
Dimensions
3.80 × 4.45 × 1.68 inches
(96.4 × 113.1 × 42.8 mm)
Color
Ivory white with gray selector knobs
Ambient Conditions
Operation
Temperature
32°F to 122°F (0°C to 50°C)
Relative humidity
<95%
Transport/Storage
Temperature
–4°F to 122°F (–20°C to 50°C)
Relative humidity
<95%
Wiring
Screw terminals for wires of
2 × 16 AWG
or 1 × 14 AWG
minimum
20
AWG
Housing
Material Plastic
Enclosure rating
NEMA1
Bellows Environmentally-friendly
gas
Agency Certification
Conforms to CE requirements
UL listed to 873 (E35918)
cUL listed to Canadian standard
C22.2
No.
24-93
Table 2. Control Valves.
Part Number
Description
Technical Instructions
SFA71U 24V
NC
SFA11U 120V
NC
SFA208V/25 208V
NC
SFA277V/25 277V
NC
155-521
FTA71 24V
NC
155-109
599 Series Zone
Valves
Two-way
Three-way
155-320P25
