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Powers Controls
Low Temperature Detection
Thermostat
Description
Features
Product Number
Warning/Caution Notations
Application
The electric Low Temperature Detection Cut-out and Alarm Thermostat is a remote bulb
instrument which opens an electrical circuit to stop the supply fan motor and/or closes an
outside air damper when the temperature at the sensing element falls below the setting
of the instrument. Simultaneously, it closes a circuit to indicate an alarm condition.
•
Manual reset
•
Easy temperature setting with adjusting screw on top of enclosure
•
Mounting bracket and two screws included
•
Main and separate reverse-acting auxiliary contacts
134-1504
WARNING
CAUTION
This instrument should only be used on those applications where the ambient
temperature to which the instrument case and bellows are exposed remains above
the temperature setting of the thermostat. This thermostat should be used in areas
protected from the weather.
Technical Instructions
Document No. 155-016P25
Personal injury/loss of life may occur if a procedure is
not performed as specified.
Equipment damage, or loss of data may occur if the
user does not follow a procedure as specified.
ET 134-22
Rev. 1, February, 2000
Siemens Building Technologies, Inc.
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Summary of Contents for Siemens Powers ET 134 Series
- Page 1 This instrument should only be used on those applications where the ambient temperature to which the instrument case and bellows are exposed remains above the temperature setting of the thermostat. This thermostat should be used in areas protected from the weather. Siemens Building Technologies, Inc.
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Page 2: Specifications
(LINE-M2) opens on temperature drop and simultaneously, an auxiliary or alarm circuit (LINE-Ml) closes on temperature drop. NOTE: The reset button must be manually pressed down and released to resume normal fan system operation. Page 2 Siemens Building Technologies, Inc. -
Page 3: Electrical Ratings
Figure 1 . The installation is complete. NOTE: For an alternate method of mounting, use coil clips (Part Number 356-115) in the fins to hold the bulb in a horizontal, serpentine pattern. Siemens Building Technologies, Inc. Page 3... - Page 4 5. Insert the tubing and bulb through the access hole and into the duct-mounted flange. Fasten the 8-inch by 4-inch sheet metal plate to the duct. 6. Mount the thermostat on the outside of duct. Page 4 Siemens Building Technologies, Inc.
- Page 5 See Figure 3 for a typical wiring diagram. Figure 3. Typical Wiring Diagram. CAUTION: Use terminal screws furnished (#8-32 x 1/4-inch binder head screw). Longer terminal screws can interfere with switch mechanism and damage the switch. Siemens Building Technologies, Inc. Page 5...
- Page 6 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 trademark of Siemens Building Technologies, Inc. © 2000 Siemens Building Technologies, Inc.