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RAB10 Series
Two-pipe Fan Coil Room
Thermostat with Manual
Changeover
Description
Features
Application
Product Numbers
Technical Design
Operation
Heating Mode
Cooling Mode
Two-wire, gas diaphragm-based fan coil room thermostat with heating or cooling
sequence for two-pipe fan coil applications.
•
Manual, three-speed fan switch
•
Dual setpoint temperature scale
•
Fan release function
•
Two-point control algorithm (On/Off)
•
24 to 120 Vac, 277 Vac operating voltage
•
Manual changeover switch
•
Two mounting styles: electrical wall box or drywall
•
Wall plate adapter (ARG70) included with electrical wall box mount styles
Typically used in commercial, high-rise and light industrial buildings in conjunction with:
•
Zone valves
•
Thermal valves
•
Fans
See Table 1.
The RAB10... fan coil room thermostat is based on a two-wire, gas diaphragm
technology.
When the heating mode is manually selected, and the room temperature falls below the
selected setpoint, the heating contact is closed.
When the cooling mode is manually selected, and the room temperature rises over the
selected setpoint, the cooling contact is closed.
Technical Instructions
Document No. 155-524P25
ET RAB-1
March 2, 2007
Siemens Industry, Inc.
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Summary of Contents for Siemens RAB10 Series
- Page 1 Technical Instructions Document No. 155-524P25 ET RAB-1 March 2, 2007 RAB10 Series Two-pipe Fan Coil Room Thermostat with Manual Changeover Description Two-wire, gas diaphragm-based fan coil room thermostat with heating or cooling sequence for two-pipe fan coil applications. • Features Manual, three-speed fan switch •...
- Page 2 Technical Instructions RAB10 Series Two-pipe Fan Coil Room Thermostat Document Number 155-524P25 March 2, 2007 Operation, The fan control speed can be controlled two ways: Continued • Manually, using the three-speed fan switch on the thermostat cover for continuous Fan Speed operation.
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Page 3: Specifications
RAB10 Series Two-pipe Fan Coil Room Thermostat Technical Instructions Document Number 155-524P25 March 2, 2007 Operating voltage 24 to 120 Vac, 277 Vac Specifications Frequency 50/60 Hz Setpoint adjustment range 50°F to 85°F (10°C to 30°C) Setpoint limit stops Adjustable ≤1.8°F (1°C), fixed... -
Page 4: Installation
Technical Instructions RAB10 Series Two-pipe Fan Coil Room Thermostat Document Number 155-524P25 March 2, 2007 Mounting • Locate the unit where the air temperature can be sensed as accurately as possible. • Do not mount in direct sunlight or near other heat or refrigeration sources. - Page 5 RAB10 Series Two-pipe Fan Coil Room Thermostat Technical Instructions Document Number 155-524P25 March 2, 2007 Drywall Mounting 1. Loosen the two screws at the bottom of thermostat. 2. Lift the bottom of the thermostat cover from the thermostat base and push up to remove cover.
- Page 6 Technical Instructions RAB10 Series Two-pipe Fan Coil Room Thermostat Document Number 155-524P25 March 2, 2007 4 × 4-inch Electrical Wall An ARG70 wall plate adapter is required to mount an RAB… thermostat to a 4 × 4-inch Box Mounting electrical wall box. The ARG70 wall plate adapter is included with electrical wall box mount models.
- Page 7 RAB10 Series Two-pipe Fan Coil Room Thermostat Technical Instructions Document Number 155-524P25 March 2, 2007 2 × 4-inch Electrical Wall An ARG70 wall plate adapter is required to mount an RAB… thermostat to a 2 × 4-inch Box Mounting electrical wall box. The ARG70 wall plate adapter is included with electrical wall box mount models.
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Page 8: Maintenance
Technical Instructions RAB10 Series Two-pipe Fan Coil Room Thermostat Document Number 155-524P25 March 2, 2007 Maintenance The room thermostat is completely maintenance-free. If inoperable, replace entire unit. WARNING: High voltage. Disconnect power before servicing. Metal part is not grounded. Operating voltage... - Page 9 RAB10 Series Two-pipe Fan Coil Room Thermostat Technical Instructions Document Number 155-524P25 March 2, 2007 Dimensions Dimensions in inches (millimeters) Figure 7. RAB10… Unit. Figure 8. Base Plate. Figure 9. ARG70. 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.