Schneider Electric MK-7100 Series, MK4-7100 Series Installation Instructions
Installation Instructions
SPECIFICATIONS
Construction
Housing: Die cast aluminum.
Diaphragm: Replaceable beaded molded neoprene.
Mounting: Any position.
Dimensions of Actuator: 17-5/8 x 7-3/4 x 7-5/8 in. (448 x 197 x 194 mm).
Mechanical
Stroke: Nominal 4-1/2 in. (114 mm), adjustable 4 to 5 in. (102 to 127 mm). Nominal Damper Area: Actuator sizing should be done in accordance with damper manufacturer’s specifications.
Start Point: Adjustable, see Table-1.
Spring: Retracts actuator crank arm on loss of air pressure.
Maximum air pressure: 30 psig (207 kPa).
Environment
Ambient Temperature Limits:
Shipping, -40 to 160°F (-40 to 71°C).
Operating, -20 to 160°F (-29 to 71°C).
Air Connections: 1/8” FNPT.
Air Connections (MK4-7100 Series only): Barbed fittings for 1/4” OD poly tube.
Table-1 Model Chart for Actuators.
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Maximum Forcec |
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Nominal Torqueb |
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Return |
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Power Stroke |
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Proportional Controlc |
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Nominal |
Starting |
Stroke |
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Based on |
15 psi |
15 psi |
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20 psi |
15 psi |
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15 psi |
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20 psi |
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TAC |
Operating |
Pressure |
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Supply |
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Supply |
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Supply |
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Supply |
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Model No. |
Range |
Adjustable |
1.5 psi |
Supply |
Single |
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Single or |
Supply |
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Single |
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Single or |
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Pressure to |
Dual Press. |
Press. |
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Dual Press. |
Dual Press. |
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Press. |
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Dual Press. |
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Actuator |
System |
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System |
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Systemd |
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Systemd |
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Systemd |
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Systemd |
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psi |
psi |
lb. |
lb. |
lb. |
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lb. |
lb. -in. |
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lb. -in. |
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lb. -in. |
MK-7101 |
3 to 8 |
3 ± 0.5 |
30 |
110 |
140 |
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240 |
67.5 |
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MK4-7101a |
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67.5 |
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67.5 |
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MK-7121 |
8 to 13 |
8 ± 0.5 |
130 |
10 |
40 |
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140 |
22.5 |
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MK4-7121a |
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90 |
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293 |
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aFactory installed positive posi ioner (AK-42309-500) start point adjustable 1 to 12 psi (7 to 83 kPa) with span adjustable 2 to 13 psi (14 to 90 kPa).
bNominal torque for actuators without positioner is based on 1.5 psi (10 kPa) pressure change at the actuator.
cForce and torques based on factory set stroke and starting pressure.
dAdjust pressure reducing valve so that listed pressures are available at the actuator.
Accessories
AK-42309-500
AM-301
AM-530a
AM-532
AM-538
AM-542
AM-543
Tool-95
Positive positioner and linkage (do not use with MK2-71X1; positive positioner does not meet temperature rating of MK2-71X1)
90° angle mounting bracket
Crank arm for 1/2 in. diameter damper shaft holes for 4-1/2 in. stroke
Frame mounting kit Actuator brace kit
Rod end connector for 5/16 in. (10 mm) rodb Actuator shaft extension
Pneumatic calibration tool kit
aRequired to connect damper actuator to damper shaft.
bMaximum length of 5/16 in. (10 mm) rod which can be used wi h AM-542, 15 in. (381 mm).
August, 2017 tc |
© 2017 Schneider Electric. All rights reserved. All trademarks are owned by Schneider Electric Industries SAS or its affiliated companies. |
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Document Number: F-15221-11 |
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