Refrigerating Specialties Division
11
Typical Applications
The ELL-1 Controller is for single level control. It can be field adjusted
to operate the SPDT relay at any two points along 100% of the active
probe length. Those level set-points might be at 48% and 52% for a
typical accumulator, or at 10% and 90% for a typical dump tank or
transfer vessel.
The ELL-2 has three levels of operation: the high and low level auxiliary
switches can be used to shut down a system, or to sound a warning;
the middle level is the same as described for the ELL-1.
The ELL-3 has five levels of operation. The middle level is the same
as for the ELL-1 and the ELL-2, with “On-Off” control of the liquid
level, plus the ELL-3 has two high level and two low level auxiliary
switches. All four of these auxiliary switches may be set at any suitable
height. A typical application would utilize the middle switch to control
operating level on a pumped liquid recirculation package. The two
high level auxiliary switches could be wired to sound an alarm prior to
shutting down the compressor. Low level auxiliary switches could
further be wired to sound an alarm prior to shutting off a pump.
Each of the high and low level auxiliary switches have a 4% differential
built-in to eliminate nuisance cycling.
Warranty
All Refrigerating Specialties Products are warranted against defect in
workmanship and materials for a period of one year from date of
shipment from the factory. This warranty is in force only when these
products are properly installed, field assembled, maintained and
operated in use and service as specifically stated in Refrigerating
Specialties Catalogs or Bulletins for normal refrigeration applications,
unless otherwise approved in writing by Refrigerating Specialties
Division. Defective products, or parts thereof, returned to the factory
with transportation charges prepaid and found to be defective by factory
inspection will be replaced at Refrigerating Specialties option, free of
charge, F.O.B. factory. Warranty does not cover products which have
been altered or repaired in the field, damaged in transit, or have
suffered accidents, misuse, or abuse. Products disabled by dirt, or
other foreign substances will not be considered defective.
THE EXPRESS WARRANTY SET FORTH ABOVE CONSTITUTES
THE ONLY WARRANTY APPLICABLE TO REFRIGERATING
SPECIALTIES PRODUCTS, AND IS IN LIEU OF ALL OTHER
WARRANTIES, EXPRESSED OR IMPLIED, WRITTEN OR ORAL,
INCLUDING ANY WARRANTY OF MERCHANTABILITY, OR FITNESS
FOR A PARTICULAR PURPOSE. No employee, agent, dealer or other
person is authorized to give any warranties on behalf of Refrigerating
Specialties, nor to assume, for Refrigerating Specialties, any other
liability in connection with any of its products.
P
Probe
24”
36”
48”
72”
96”
120”
`
Length
(61.0 cm)
(91.4 cm)
(121.9 cm)
(182.9 cm)
(243 cm)
(304 cm)
T
Total
30”
42”
54”
78”
102”
126”
Length
(76.2 cm)
(106.7 cm)
(137.2 cm)
(198.1 cm)
(259 cm)
(320 cm)
