Johnson Controls M9203-B Series - Auxiliary Switch Adjustment and Technical Specifications; Auxiliary Switch Trip Point Adjustment; Actuator Technical Specifications (Part 1); Actuator Rotation Range Specification

M9203-Bxx-2(Z) Series On/Off Electric Spring Return Actuators Installation Guide
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2. Rotate the switch adjuster until it points to the desired switch point.
3. Connect the Auxiliary Switch to a power source or an ohmmeter and apply power to the actuator. The actuator
moves to the fully open position and holds while power is applied.
4. Observe the switch point. If required, repeat Step 1 through Step 3.
Repair Information
A number of replacement parts are available; see Table 1 for more details. If an M9203-Bxx-2(Z) Series
On/Off Electric Spring Return Actuator fails to operate within its specifications, replace the unit. For a replacement
electric actuator, contact the nearest Johnson Controls representative.
Technical Specifications
M9203-Bxx-2(Z) Series On/Off Electric Spring Return Actuators (Part 1 of 2 )
Power
Requirements
-BGx-2 Models AC 24 V (AC 19.2 V to 28.8 V) at 50/60 Hz: Class 2 (North America) or Safety
Extra-Low Voltage (SELV) (Europe), 5 VA Running, 1.6 VA Holding Position
DC 24 V (DC 21.6 V to 28.8 V): Class 2 (North America) or SELV (Europe),
2.8 W Running, 0.8 W Holding Position
Minimum Transformer Size: 6 VA per Actuator
-BUx-2 Models AC 100 to 240 V (AC 85 V to 264 V) at 50/60 Hz: 0.06 A Running, 0.02 A
Holding Position
-BUx-2Z Models AC 100 to 240 V (AC 85 V to 264 V) at 50/60 Hz: 0.08 A Running, 0.02 A
Holding Position
Auxiliary Switch
Rating
-xxB Models One Single-Pole, Double-Throw (SPDT), Double-Insulated Switch with Silver
Contacts:
AC 24 V, 50 VA Pilot Duty
AC 120 V, 5.8 A Resistive, 1/4 hp, 275 VA Pilot Duty
AC 240 V, 5.0 A Resistive, 1/4 hp, 275 VA Pilot Duty
Spring Return Direction Is Selectable with Mounting Position of Actuator:
Actuator Side A Is Away from Damper or Valve: CCW Spring Return
Actuator Side B Is Away from Damper or Valve: CW Spring Return
Rated Torque Power On
(Running)
27 lb·in. (3 N·m) All Operating Temperatures
Power Off
(Spring Returning)
27 lb·in. (3 N·m) All Operating Temperatures
Rotation Range Maximum Full Stroke: 95°
Adjustable Stop: 35 to 95° Maximum Position
Figure 12: Switch Trip Point Settings
30
90
50
70
30
90
50
70
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Switch Adjuster
FIG:swtch_sttng