United Electric Controls 54 Series Assembly, Installation And Operation Instructions

Installation and Operation Instructions Installation and Operation Instructions
Please read all instructional literature carefully and thoroughly before starting.
GENERAL
MISUSE OF THIS PRODUCT MAY CAUSE DAMAGE TO
EQUIPMENT OR PERSONAL INJURY. THESE INSTRUCTIONS
MUST BE THOROUGHLY READ AND UNDERSTOOD BEFORE
DEVICE IS INSTALLED.
Type B54, B54S, C54, C54S, C54A, C54AS (Immersion Stem)
Temperature variations are sensed by a liquid fi lled sensor
which expands or contracts against a bellows which
actuates a snap-action switch at a predetermined set point.
Type E54, E54S, F54, F54S (Bulb & Capillary)
Temperature variations of a liquid fi lled sensing bulb are
hydraulically transmitted to a diaphragm which actuates
a snap-acting switch at a predetermined set point.
MAX. TEMPERATURE* LIMITS LISTED ON NAMEPLATE
MUST NEVER BE EXCEEDED, EVEN BY SURGES IN THE
SYSTEM. OCCASIONAL OPERATION OF UNIT UP TO MAX.
TEMPERATURE IS ACCEPTABLE, E.G. START-UP AND
TESTING. EXCESSIVE CYCLING AT MAXIMUM TEMPERATURE
LIMIT COULD REDUCE SENSOR LIFE. CONTINUOUS
OPERATION SHOULD NOT EXCEED THE DESIGNATED
ADJUSTABLE TEMPERATURE RANGE.
* Maximum Temperature - the highest temperature to which a sensing
element may be occasionally operated without adversely aff ecting set
point calibration and repeatability.
THIS PRODUCT DOES NOT HAVE ANY FIELD REPLACEABLE
PARTS. ANY SUBSTITUTION OF COMPONENTS SHALL
INVALIDATE AGENCY CERTIFICATION(S).
DEVICE MUST NOT BE ALTERED OR MODIFIED AFTER
SHIPMENT. CONSULT UE IF MODIFICATION IS NECESSARY.
Please refer to product datasheet at www.ueonline.com
for product specifi cations.
Part I - Installation
Mounting
• Adjustable Wrench
• Screwdriver
54 Series
Temperature Switches
Types:
Enclosed: B54, C54, C54A, E54, F54
Skeleton: B54S, C54S, C54AS, E54S, F54S
DUAL SEAL
CERTIFIED
Refer to the final page for the Warranty.
INSTALL DEVICE WHERE SHOCK, VIBRATION AND
TEMPERATURE FLUCTUATIONS ARE MINIMAL. DO NOT
INSTALL DEVICE IN AMBIENT TEMPERATURES THAT EXCEED
PUBLISHED LIMITS ON THE NAMEPLATE.
DEVICE SHOULD BE MOUNTED TO PREVENT MOISTURE
FROM ENTERING THE ENCLOSURE. VERTICAL MOUNTING IS
RECOMMENDED.
ALWAYS USE A WRENCH ON LOCAL MOUNT, IMMERSION
STEM HEX (SEE PART III DIMENSIONS). DO NOT TIGHTEN BY
TURNING THE DEVICE AS THIS WILL DAMAGE THE SENSOR
AND WEAKEN WELDED JOINTS.
AVOID BENDING OR COILING THE CAPILLARY TUBING
TIGHTER THAN 1/2" RADIUS. EXERCISE CAUTION WHEN
MAKING BENDS NEAR THE CAPILLARY ENDS.
Remove cover (enclosed version only). Cover is held on
by one captive screw located on the front of the cover.
54 Series temperature switches can be mounted in any
position by using either the mounting screw holes on
the bracket or the NPT connection on the immersion
stem (local mounted only). Optional union connectors or
separable well kits are available for remote bulb types.
A 7/8" diameter hole has been provided in the bracket
plate for mounting a standard conduit fi tting (See Part
III Dimensions).
For remote mounting, fully immerse the bulb and 6" of
capillary in the control zone. It is generally desirable to
place the bulb close to the heating or cooling source
in order to sense temperature fl uctuations quickly. Be
sure to locate the bulb so that it will not be exposed to
temperatures beyond the instrument range limits.
Wiring
DISCONNECT ALL SUPPLY CIRCUITS BEFORE WIRING DEVICE.
WIRE DEVICE IN ACCORDANCE WITH LOCAL AND NATIONAL
ELECTRICAL CODES. MAXIMUM RECOMMENDED WIRE SIZE
IS 14 AWG AND RECOMMENDED TIGHTENING TORQUE FOR
FIELD WIRING TERMINALS IS 7 TO 17 IN-LBS.
1 IMT54 08