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.
Maximum Force
Stroke
TAC
Model No.
Nominal
Operating
Range
Starting
Pressure
Adjustable
Based on
1.5 psi
Pressure to
Actuator
15 psi
Supply
Dual Press.
System
psi psi lb. lb. lb. lb. lb. -in. lb. -in. lb. -in.
MK-7101
MK4-7101
MK-7121
MK4-7121
a
Factory 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).
b
Nominal torque for actuators without positioner is based on 1.5 psi (10 kPa) pressure change at the actuator.
c
Force and torques based on factory set stroke and starting pressure.
d
Adjust pressure reducing valve so that listed pressures are available at the actuator.
3 to 8 3 ± 0.5 30 110 140 240 67.5
a
8 to 13 8 ± 0.5 130 10 40 140 22.5
a
c
Power Stroke
15 psi
Supply
Single
ress.
P
d
System
20 psi
Supply
Single or
Dual Press.
System
d
Proportional Control
15 psi
Supply
Dual Press.
System
Nominal Torque
15 psi
Supply
Single
Press.
System
67.5 67.5
90 293
Accessories
AK-42309-500 Positive positioner and linkage (do not use with MK2-71X1; positive
positioner does not meet temperature rating of MK2-71X1)
AM-301 90° angle mounting bracket
AM-530
AM-532 Frame mounting kit
AM-538 Actuator brace kit
AM-542 Rod end connector for 5/16 in. (10 mm) rod
AM-543 Actuator shaft extension
Tool-95 Pneumatic calibration tool kit
a
Crank arm for 1/2 in. diameter damper shaft holes for 4-1/2 in.
stroke
b
d
b
cReturn
20 psi
Supply
Single or
Dual Press.
System
d
a
Required to connect damper actuator to damper shaft.
b
Maximum 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. A ll right s reser ved. All trademarks ar e owned by Schnei der Electric Industri es SAS o r its af filiated compa nies.
Document Number: F-15221-11
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