CCS 646TUE3 Pressure Switch

Installation & Maintenance Instruction Switch Models: 646GE*Y*, 646DE*Y*, 646VE*Y*
CCS switches are designed to provide long life and maintain excellent setpoint accuracy under adverse environmental conditions.
Check Nameplate on the switch for maximum proof (overpressure) or vacuum limits, as shown.
I. GENERAL:
a) Observe all Warnings and Cautions contained on the attached Warning Sticker, the
Warning Declaration and the CCS Catalog.
b) Follow all applicable Governmental or other Codes or Regulations.
c) Special Conditions for Safe Use: The integral free lead wires shall or cable be
mechanically protected and terminated in a suitable junction or terminal facility.
II. MOUNTING:
a) Units may be mounted in any position on a flat surface using (2) mounting holes
provided and 1/4” screws at least 3/4” long.
WARNING: RELEASE ALL PRESSURE PRIOR TO INSTALLATION OR
REMOVAL OF THIS DEVICE. DO NOT EXCEED NAMEPLATE LISTED PROOF PRESSURES.
b) Units are supplied with female NPT ports as standard suitable for connection to
NPT pipe nipples or NPT taper threaded pipe. CCS recommends use of either a
union or bendable tubing. This will eliminate excessive strain on the housing.
c) Pipe joint sealing compound is preferred over Teflon tape. However, either
method of sealing is acceptable with proper care to avoid introducing sealing material
into pressure switch or plumbing.
III. ELECTRICAL CONNECTIONS:
WARNING: DO NOT MAKE ELECTRICAL CONNECTIONS WHILE ELECTRICAL
POWER IS ON. THIS PRODUCT MUST BE INSTALLED BY A QUALIFIED
ELECTRICIAN TO AVOID RISK OF ELECTROCUTION.
a) Electrical conductors are provided within a male conduit connection.
b) When making wire connections disconnect electrical power. Check for multiple
circuits.
c) Make electrical connections in accordance with the appropriate codes and
regulations. Keep as much wire as possible for a service loop to facilitate service,
see wiring diagrams.
FOR SERVICE OR ORDERING INFORMATION Consult factory or authorized factory representative. Specify full catalog part number (with optional
modification) and factory set-point.
WARRANTY All CCS products and services are sold subject to: “CCS standard terms and conditions of sale”.
Custom Control Sensors, Inc 21111 Plummer Street Chatsworth, CA 91311 Tel: (818) 341-4610 • Fax: (818) 709-0426
http://www.ccsdualsnap.com
d) Proper grounding must be accomplished by use of the illustrated earthing terminal
provided.
IV. ADJUSTMENT:
Pressure settings are externally adjustable. (Not applicable if units are factory set)
a) If the electrical circuit cannot be used for testing, disconnect electrical power and
use a suitable circuit tester or light box.
b) Remove access cover. Rotate adjustment wheel as illustrated with pressure port
facing down; turn clockwise to increase settings or turn counterclockwise to decrease
setting.
c) Re-install access cover; d) Reconnect electrical circuit; e) Return power to unit.
WARNING DECLARATION
If this switch is used to protect equipment or personnel from unsafe pressure or to guard against the hazardous
release of contained substances it must be installed and operated in accordance with applicable codes, regulations
and standards. This switch must be used in conjunction with system design(s) or procedure(s) necessary to mitigate
any hazard resulting from its failure. Conform to installation instructions accompanying this switch. Individuals who
ignore this warning may suffer serious or fatal injury and do so at their own risk. Custom Control Sensors is not liable
for any misuse, abuse, suitability or adequacy of user’s application of the switch. Service by qualified personnel only.
P/N 10-1153, REV. D 10/14/2013