Refrigerating Specialties Division
7
1. This “typical” drawing is conceptual, and is not intended for use
as an installation or design drawing. R/S assumes no
responsibility for any implementation of the details or concepts
reflected by this drawing.
2. Wiring shown in dash-line box integral to ELL-3 Controller. All
other wiring installed in field, to suit application and design.
3. No attempt made herein to isolate control circuits, define location
of enunciators or pilot lights, distinguish between enclosures,
etc. All applicable codes to be observed.
4. CONTROLLER RELAY FUNCTION, DISPOSITION
All relays shown in de-energized (normal) position. All LED -pilots
on ELL energized when relays are energized.
ELL-R1: Operating liquid level, adjustable differential, can be
set to any liquid level or differential, energized as liquid
level drops to lower level setting, de-energized when
liq
uid level rises to upper level setting.
ELL-R2:
C
an be set to activate at any level from 0 - 100%.
Differential fixed at approximately 4%. Relay energized
as liquid level LOWERS to set point; de-energized on
rise.
ELL-R3: Can be set to activate at any level from 0 - 100%.
Differential fixed at approximately 4%. Relay energized
as liquid level RISES to set-point; de-energized on fall.
ELL-R4: Can be set to activate at any level from 0 - 100%.
Differential fixed at approximately 4%. Relay energized
as liquid level LOWERS to set-point; de-energized on
rise.
ELL-R5: Can be set to activate at any level from 0 - 100%.
Differential fixed at approximately 4%. Relay energized
as liquid level RISES to set-point; de-energized on fall.
5. Alternative applications and logic supported by employing
combinations of ELL relays and additional control relays are
infinite. Transfer systems, intercoolers, chillers, and others will
require their own specific control circuit designs.
Specifications
Power Required
Liquid Temperature Range
Probe Head
Storage Temperature
120/240V 60 Hz
-150° to 212° F
Max. Rated Pres. (MRP)
Range (all parts)
110/220V 50 Hz
-100° to 100° C
450 psig (31 bar)
-55° to 165° F
10VA
-48° to 74° C
Controller Enclosure
Controller Ambient Temp. Range
Probe Cable Voltage
Relay Contact Rating
NEMA 4X (Outdoor use)
-22° to 122° F
Max. 15 V DC
10amps120VSPDT
-30° to 50° C
Probe Head
Probe Head Enclosure
Ambient Temp. Range
Outdoor use
-50° to 131° F
-46° to 55° C
