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A25 Series Warm Air Control with Manual Reset Product/Technical Bulletin     

9

 

S

pecifications 

Product 

A25AN-1 

SPST, opens on temperature rise, setpoint knob adjustment. 

A25AP-1 

SPST, opens on temperature rise, concealed screwdriver adjustment, 

Factory Mutual approved. 

A25CN-1 

SPDT,  setpoint knob adjustment. 

A25CP-1 

SPDT, concealed screwdriver adjustment, Factory Mutual approved. 

Range 

25 to 215°F (-4 to 102°C) 

Electrical Ratings 

Volts, AC 

120 VAC 

208 VAC 

240 VAC 

277 VAC 

 Motor 

FLA* 

16 9.2  8 

 Motor 

LRA* 

96 55.2 48 

 Noninductive 

16 16 16 16 

 

Pilot Duty:  125 VA at 24/600 VAC 

Ambient Temperature 

(Maximum) 

Case 104°F 

(40°C) 

Element 300°F 

(149°C) 

Conduit Opening 

7/8 in. (22 mm) diameter hole for 1/2 in. conduit 

Switch 

Snap-acting contacts in dust protected enclosure 

Cover Finish 

Gray baked enamel 

High Limit Dial Stop 

125°F 

Material 

Case 

0.063 in. (1.6 mm) galvanized steel 

Cover 

0.025 in. (0.64 mm) cold rolled steel 

Mounting 

Flange for flat surface 

Reset 

Positive, trip-free reset mechanism (manual reset 2 operation).  Control can be reset when  

the temperature drops 20F° (11C°) below the dial setting. 

Sensing Element 

Bi-metal rod and tube construction 

Shipping Weight 

Individual pack 

 

1.8 lb. (0.8 kg) 

Overpack of 12 units 

 

23 lb. (10.4 kg) 

Wiring Connections 

Screw-type terminals 

Agency Listing 

UL Recognized:  File MP640, Guide MBPR 

CSA Certified:  File LR948, Class 4813 02 

Factory Mutual Approved (Models A25AP and A25CP only):  Class 3545 

*  FLA = Full Load Amps; LRA = Locked Rotor Amps.  Values are equivalent to a 1 HP motor rating in accordance with UL353. 

The performance specifications are nominal and conform to acceptable industry standards.  For application at conditions beyond these specifications,  
consult the local Johnson Controls office.  Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. 

 

European Single Point of Contact: 

NA/SA Single Point of Contact: 

APAC Single Point of Contact: 

JOHNSON CONTROLS 
WESTENDHOF 3 
45143 ESSEN 
GERMANY 

JOHNSON CONTROLS 
507 E MICHIGAN ST 
MILWAUKEE WI 53202 
USA 

JOHNSON CONTROLS 
C/O CONTROLS PRODUCT MANAGEMENT 
NO. 22 BLOCK D NEW DISTRICT 
WUXI JIANGSU PROVINCE 214142 
CHINA 

 

 

 

 

Controls Group 

 

507 E. Michigan Street 

 

P.O. Box 423 

 

Milwaukee, WI   53201 

Printed in U.S.A 

 

Summary of Contents for A25 Series

Page 1: ...ntrol in the supply air duct or plenum where a lockout type control is desired or required by local code Figure 1 The A25 Series Warm Air Control with Manual Reset Features and Benefits Trip free Rese...

Page 2: ...ng location refer to Figure 2 3 Using the flange as a template on the duct mark the location for two 1 2 in 13 mm No 10 sheet metal screws 4 Punch or drill both sheet metal screw holes in the duct at...

Page 3: ...ncrease The red to blue circuit opens on temperature increase Refer to Figures 3 and 4 for terminal identification and typical wiring connections When the reset lever is pressed during normal operatio...

Page 4: ...nd the alarm or signal if applicable should activate Note The setpoint at shutdown should equal the approximate duct air temperature 3 Turn the setpoint knob clockwise to the desired setpoint Nothing...

Page 5: ...the sensor above the setpoint or lower the setpoint below the ambient temperature The control should lockout trip To reset after test Lower the temperature at the sensor to 20F 11C below the setpoint...

Page 6: ...the sensor above the setpoint or lower the setpoint below the ambient temperature The control should lockout trip To reset after test Lower the temperature at the sensor to 20F 11C below the setpoint...

Page 7: ...n The A25 is not sensing properly The sensing element may not be extended into the airstream or the sensing element is contacting an object inside of the duct or plenum Insert the sensing element as f...

Page 8: ...8 A25 Series Warm Air Control with Manual Reset Product Technical Bulletin Notes...

Page 9: ...e reset when the temperature drops 20F 11C below the dial setting Sensing Element Bi metal rod and tube construction Shipping Weight Individual pack 1 8 lb 0 8 kg Overpack of 12 units 23 lb 10 4 kg Wi...

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