Accessory List

MF-2xxx3 Series
96
© Copyright 2006 TAC. All Rights Reserved. F-27382-1
Specifications
Restrictions on Ambient Temperature for Valve Actuators.
Accessories
Inputs
Control signal
SPDT Center Off (Floating) Control Contacts or Two SPST Control Contacts, minimum rating of 250
mA at 24 Vac inductive load. MF-23xx3 models require a controller with a timeout feature.
Two Triacs: DDC output must be able to switch 250 mA (24 VA) inductive load (150 Vac minimum).
Power Refer to Model Chart.
Connections 4 foot (1.2 M) color coded 18 AWG, plenum cable rated for UL.
Outputs
Position feedback signal
15k ohm nominal potentiometer. Refer to Model Chart.
Connections: 4 foot (1.2 m) color coded 18 AWG, plenum cable rated for UL.
Mechanical
Force: See Model Chart.
Stroke: Up to 9/16” (14.3 mm) maximum, self-adjusting.
Timing: Refer to Model Chart.
Manual Operator
Allows actuator to be manually set at any position upon loss of power. Releases automatically when
power is restored.
Environment
Ambient temperature limits
Shipping and storage: -40 to 160°F (-40 to 71°C).
Operating: See “Restrictions on Ambient Temperature for Valve Actuators” for minimum and
maximum temperatures.
Fluid Temperature Limits Refer to “Restrictions on Ambient Temperature for Valve Actuators.”
Humidity
5 to 95% RH, non-condensing. Refer to “Restrictions on Ambient Temperature for Valve Actuators”
for dew point temperature.
Locations NEMA Type 1.
Enclosure Protection Class Designed to meet IP31 Class, according to EN 60529, BS EN 60529.
Agency Listings
UL 873
Underwriters Laboratories (File # E9429 Category Temperature-Indicating and Regulating
Equipment).
CUL Certified for use in Canada by Underwriters Laboratories. Canadian Standard C22.2 No. 24-93.
European Community EMC Directive (89/336/EEC). Low Voltage Directive (72/23/EEC).
Dimensions 3-5/16 H x 3 W x 5-9/16 D in. (84 x 76 x 141 mm).
General Instructions Refer to F-26264 and F-26572.
Model No.
Temperature of Media in the
Valve Body (Check Rating of
the Valve)
Maximum Actuator
Ambient Temperature
Dew Point Temperature
Minimum Maximum
MF-2x203
70°F
(21°C)
281°F (138°C) 115°F (46°C)
Non-condensing
a
a
Do not use MF-2X203 models in chilled water applications.
220°F (104°C) 140°F (60°C)
MF-2x303
40°F
(4°C)
281°F (138°C) 115°F (46°C)
88°F Dew Point maximum with 40°F fluid
(31°C Dew Point maximum with 4°C fluid)
b
b
The dew point temperature cannot be more than 48°F (26.7°C) above the fluid temperature.
MF-2x323 220°F (104°C) 140°F (60°C)
Model No. Description
AV-641 Valve linkage kit (replacement parts only, order separately, see F-26588).
AV-642 Four-way valve linkage kit for Controlli valve bodies (see F-26261).
AV-644 Valve linkage kit (included with MF-22xx3 actuator) (see F-26264).
FRAC-255 Metric male 20 mm conduit fitting (m20 x 1.5 - 8g) 11 mm nominal thread length.
FRAC-259 MF-20000/MS-20000 male conduit fitting.