United Electric Controls 100 Series User manual

GENERAL
Types B100 and C100 (Immersion Stem)
Temperature variations are sensed by a liquid filled sensor which expands
or contracts against a bellows which actuates a snap-action switch at a
predetermined set point.
Types E100 and F100 (Bulb & Capillary)
Temperature variations of a liquid filled sensing bulb are hydraulically
transmitted to a bellows which actuates a snap-acting switch at a
predetermined set point.
MAXIMUM TEMPERATURE IS THE HIGHEST TEMPERATURE TO
WHICH A SENSING ELEMENT MAY BE OCCASIONALLY EXPOSED TO
WITHOUT ADVERSELY AFFECTING SET POINT CALIBRATION AND
REPEATABILITY. MAXIMUM TEMPERATURE LIMITS STATED IN LITERATURE
AND ON NAMEPLATE MUST NEVER BE EXCEEDED, EVEN BY TEMPERATURE
OVERSHOOTS IN THE SYSTEM. OCCASIONAL OPERATION OF UNIT UP
TO MAX. TEMPERATURE IS ACCEPTABLE (E.G., START-UP, TESTING).
CONTINUOUS OPERATION SHOULD BE RESTRICTED TO THE DESIGNATED
ADJUSTABLE RANGE.
Please refer to product bulletin for product specifications. Product
bulletins may be found at www.ueonline.com.
Tools Needed
Adjustable wrench
Flathead screwdriver
Hammer (for alternate wire knockouts)
MOUNTING
INSTALL UNIT WHERE SHOCK, VIBRATION AND TEMPERATURE
FLUCTUATIONS ARE MINIMAL. DO NOT MOUNT UNIT IN AMBIENT
TEMPERATURES EXCEEDING PUBLISHED LIMITS. 100 SERIES
TEMPERATURE SWITCHES CAN BE MOUNTED IN ANY POSITION, PROVIDED
THE ELECTRICAL CONDUIT IS NOT FACING UP. ORIENT UNIT SO THAT
MOISTURE IS PREVENTED FROM ENTERING THE ENCLOSURE.
For remote mounting, mount the unit via the (2) 1/4” screw clearance holes
on the enclosure (See Dimensions on back page.) Fully immerse the bulb
and 6” 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
fluctuations quickly. Be sure to locate the bulb so that it will not be exposed
to temperatures beyond the instrument range limits.
FOR LOCAL MOUNTING, ALWAYS HOLD A WRENCH ON THE
TEMPERATURE HOUSING HEX WHEN MOUNTING UNIT. DO NOT
TIGHTEN BY TURNING ENCLOSURE. THIS WILL DAMAGE SENSOR
AND WEAKEN SOLDERED OR WELDED JOINTS.
WIRING
DISCONNECT ALL SUPPLY CIRCUITS BEFORE WIRING UNIT.
ELECTRICAL RATINGS STATED IN LITERATURE AND ON NAMEPLATE
MUST NOT BE EXCEEDED. OVERLOAD ON A SWITCH CAN CAUSE
FAILURE ON THE FIRST CYCLE. WIRE UNITS ACCORDING TO NATIONAL AND
LOCAL ELECTRICAL CODES. MAXIMUM RECOMMENDED WIRE SIZE IS 14 AWG.
UNITED ELECTRIC
CONTROLS
Installation and Maintenance
Instructions
IMT100-04
100 Series
Temperature Switch
Types B100, C100, E100, F100
Please read all instructional literature carefully and thoroughly before starting. Refer to the final page for the listing of Recommended
Practices, Liabilities and Warrantees.
Part I - Installation
Remove the two screws retaining the cover and cover gasket. A 1/2” NPT
conduit connection is located on the left side of the enclosure. Two cast-in
7/8” diameter knockouts for electrical conduit are located on the side and
rear of enclosure. These can easily be knocked out by placing the blade
of a screwdriver in the groove and tapping sharply with a hammer.
Connect conduit to the enclosure and wire directly to the switch terminals
according to local and national electrical codes. Bring the wires up to
terminals from the rear of the enclosure allowing enough slack so as not
to affect switch movement when making setting adjustments. The three
switch terminals are clearly labeled “common”, “norm open”, and “norm
closed”. If lead wires are supplied, color coding is as follows:
SPDT
Common (COM) Violet
Normally Open (NO) Blue
Normally Closed (NC) Black
A grounding screw and clamp (cast in symbol) is provided which meets a
35 lb. pull test. Keep the wire as short as possible to prevent interference
with the plunger and, when provided, the adjustable deadband switch
wheel (option1519).
Tools Needed
3/16” open end wrench
NOTE: For set point adjustments and recalibration, immerse sensor
(immersion stem or bulb and 6" of capillary) in a calibrated temperature
source and stabilize unit.
Types C100 and F100
Remove cover. Switch has a hex adjustment screw inside enclosure (See
Figure 1). If switch transfer point differs from actual temperature, adjust
setting. To raise the temperature setting, turn the hex towards the left
(clockwise). To lower the temperature setting, turn the screw towards the
right (counter-clockwise). When making adjustments, do not exceed the
maximum temperature rating on nameplate.
Types B100 and E100 (with reference dial)
Controls are factory calibrated for maximum accuracy at the midpoint of
the scale.
To re-calibrate, turn dial to desired set point(See Figure 2). If the actual
temperature and set point temperature do not agree, turn hex adjustment
screw towards the left (clockwise) to raise and towards the right (counter-
clockwise) to lower temperature setting.
Part II - Adjustments
IMT100-04

CP12082500
Dimension A
Models Inches mm
120,121 9.38 238,2 Immersion stem
1B-8B 8.75 222,23 Bulb & capillary
Models 120-121 Models 1BC-8BC, 1BS-8BS
UNITED ELECTRIC
CONTROLS
P.O. Box 9143, Watertown, MA 02471-9143 USA
617 926-1000 Fax [phone]
http://www.ueonline.com
IMT100-04
COM. N.C.N.O.
HEX ADJUSTMENT
SCREW
COM. N.C.N.O.
DIAL
HEX ADJUSTMENT
SCREW
Types B100, C100, E100, F100
Dimensions
Dimensional drawings for all models may be found at www.ueonline.com.
C100, F100
B100, E100
4
24" WITH COVER
11
32
(59.4mm)
7
32
(107.2mm)
15
8
(41.4mm)
(101.6mm)
1/2 NPT
.895 (22.7mm) DIA.
KNOCK-OUT 2 PLACES
CLEARANCE FOR
1/4 (6.35mm) SCREW
2 MT'G. HOLES.
(69.9mm)
4
3
2
CONDUIT.
A
KNOCK
OUT
Figure 1
Figure 2
RECOMMENDED PRACTICES AND WARNINGS
United Electric Controls Company recommends careful consideration
of the following factors when specifying and installing UE pressure
and temperature units. Before installing a unit, the Installation
and Maintenance instructions provided with unit must be read and
understood.
 
limits stated in literature and on nameplates must never be


(e.g., start-up, testing) but continuous operation must be restricted

pressure or temperature limits could reduce sensor life.
          
           
low limit switch is necessary for applications where a dangerous
runaway condition could result.
         
inadvertent or malicious setting at any range point cannot result
in an unsafe system condition.
        
fluctuations will not damage unit or affect operation. When
applicable, orient unit so that moisture does not enter the
enclosure via the electrical connection. When appropriate, this
entry point should be sealed to prevent moisture entry.
 
if modification is necessary.
 
             
immediately.
        
critical applications where damage could endanger property or
personnel.
Electrical ratings stated in literature and on nameplate must

on the first cycle. Wire unit according to local and national
electrical codes, using wire size recommended in installation
sheet.
 
LIMITED WARRANTY
Seller warrants that the product hereby purchased is, upon delivery,
          
          
         
      
warranty applies only to equipment found to be so defective within
a period of 36 months from the date of manufacture by the Seller.
Seller shall not be obligated under this warranty for alleged defects
        
improper storage, and in any case where products are disassembled
  
       
      
       

LIMITATION OF SELLER’S LIAbILITY

        


          
   
       

       
        
   
          

UE specifications subject to change without notice.