AbsolutAire HLC User Manual
High Limit Control
Model HLC/Hi Limit
Features:
High Limit with Manual Reset
Electronic Control for Reliability
UL-353/991 Approvals
Available with Various Sensor Lengths
Mountable On Any Flat Surface
Replaceable Sensor
Fault Indication LED
HLCB 1020851041 Printed in USA 01/02
Division of A.J. Antunes & Co.
TEMPERATURE CONTROLLERS • TEMPERATURE DISPLAYS • AIR PRESSURE SWITCHES • GAS SWITCHES
CUSTOM ELECTRONIC CONTROLS • SUBSYSTEMS ENGINEERING AND MANUFACTURING • TIMERS
Antunes Controls newly designed model HLC (High Limit Control), is a state-of-the-art electronic high
limit controller with a manual reset.This compact easy to install device can be mounted to any suitable
flat surface.The HLC offers a bolt down sensor, which is available in various lengths.The HLC has
passed the stringent UL 353/991 agency approvals.
Model HLC
Dimensional Drawing
Figure 1- Mounting Template
Specifications
Figure 2- Wiring Diagram
Connections:
Thermistor Input - T1, T2 & T3 (100K ohm @25ºC)
Power Input - T4 & T5 (24-120 VAC)
High Limit Relay - T6 (N.O.), T7(COM)
HLCB 1020851041
It is understood and agreed that seller’s liability whether in contract, in tort, under
warranty, in negligence or otherwise shall not exceed the return of the amount of the
purchase paid by the purchaser and under no circumstances shall seller be liable for
special, indirect or consequential damages.The price stated for the equipment is
consideration in limiting seller’s ability. No action, regardless of form, arising out of
the transactions may be brought by purchaser more than one year after the cause of
action has occurred.
Limitation of Liability
Printed in USA 01/02
180 Kehoe Blvd. P.O. Box 87700, Carol Stream, IL. 60188
Phone: 630-784-1000 • 1-800-253-2991 • Fax 630-784-1651
www.ajantunes.com
Sensor Type: 100K Thermistor (Dual) - Length (15 ft.)
Other lengths available upon request.
Accuracy: +/-3ºF of Set Point
Power Input: 24 Vac, 120 Vac
Control Operation: High Limit - Opens on Temperature Rise
Output Ratings: High Limit - 8 Amp SPST Relay
(Resistive Load)
Adjustable Temperature Range: High Limit: 180º to +300ºF
100º to +220ºF
Ambient Operating Temperature: -30º to 140ºF (-35º to +60ºC)
Connections: 1/4” Quick Connects,
Package: Aluminum “C” Bracket
Full Enclosure w/conduit knockout (optional)
Fault Indication: When the LED is “ON” the unit is latched and in a
safe condition (relay open). It can only be reset
when the fault condition is cleared.
Fault Conditions: Over temperature (compared to setpoint).
Open or shorted sensor.
Any on-board component failure.
FULL ENCLOSURE - OPTIONAL
BOTTOM VIEW
Sensor
SIDE VIEW
FULL ENCLOSURE - OPTIONAL
5.12
2.56
3.47
2.47
2.97
Red T1
Black T2
White T3
5.12
T1
T2
T3
T7
T6
T4
T5
T7 T6 T4 T5
Input
Voltage
COM
N.O.
24 VAC
Output
Relay
120 VAC
Division of A.J. Antunes & Co.
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