VSI Series 1000-X Electric Actuator
Operation and Maintenance Manual
9
APPLICATION REQUIREMENTS
•
Series 1000-X units may be installed in indoor or
outdoor conditions up to IP67 or NEMA 4X
Series 1000-X units are not rated for hazardous
environments and caution should be taken to avoid
flammable and explosive environments.
WARNING
• Manual override operation and maintenance tasks
should be taken into consideration when installing
units.
• Ambient temperature should be within -22°F to
+140°F.
Installation Conditions
• Care should be taken to prevent the heat of the
working medium from raising the actuator above
its rated ambient temperature limits.
• When the temperature of the working medium
exceeds the actuator’s rated temperature limits, a
thermal coupling shall be installed to reduce heat
transfer between the medium and the actuator.
Medium temperatures above 175°F require the use of
bracket and thermal isolating coupling in lieu of direct
mounting to valve.
WARNING
Medium/Radiant Heat
• Refer to Figure 1.1 and 1.2 when connecting
conduit to Series 1000-X actuators.
• Conduit entries are ½” NPT. All entry fittings
should be sealed watertight.
• Best practice when connecting conduit to Series
1000-X actuators is to run the conduit from below
the actuator upward to prevent condensation from
conduit working into the actuator; as shown in
Figure 1.2.
Conduit and Cable Installation
• If actuator must be installed below conduit, a drip
loop or drain should be provided to allow any water
to exit the piping.
Conduit and Cable Installation (Cont.)
Waterproof
cable connector
Branch
Connector
Plastic tube
Seal Ring
Cable
Lock Nut
ø9 ~ ø11
Figure 1.1
Figure 1.2
• Refer to Figure 2 for installation of cable directly
into unit without the use of conduit.
• The outer diameter of the cable shall be Ø9mm-
Ø11mm.
• Use of cable smaller than specified may allow
water to enter the unit and damage the electronics.
• When possible, power wiring and signal wiring
should be routed through separate conduit entries;
all units have two conduit entries.
Figure 2
