AbsolutAire HLC Installation Manual
INSTALLATION INSTRUCTIONS
High Limit Controller
Model HLC/Hi Limit
Specifications:
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: One - 8 Amp SPST Relay
(Resistive Load)
Adjustable Temperature Range:
High Limit: 180º to 300ºF
100º to 220ºF
Ambient Operating Temperature: -30º to 140ºF
Connections: 1/4” Quick Connects,
Package: Aluminum “C” Bracket
Full Enclosure w/conduit knockout (optional)
Fault Indication LED
This control is compact and easily installed. Please read these
instructions carefully to assure correct installation. Prior to being
put into operation,check all wiring and function of unit.
Division of A.J. Antunes & Co.
TEMPERATURE CONTROLLERS • TEMPERATURE DISPLAYS • AIR PRESSURE SWITCHES • GAS SWITCHES
• CUSTOM ELECTRONIC CONTROLS • SUBSYSTEMS ENGINEERING AND MANUFACTURING • TIMERS
180 KEHOE BLVD.• CAROL STREAM, IL 60188 USA • 1-800-253-2991
www.ajantunes.com
HLCI 1010851041
Printed in USA 01/02
HLCI 1010851041 Printed in USA 01/02
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
Warranty
1. Antunes Controls products are guaranteed to be free from mechanical and
electrical defects for a period of one year from date of shipment under normal
use and service provided installation is made in accordance with manufacturer’s
recommendations.
2. Parts deemed defective shall be repaired or replaced at manufacturer option and
at manufacturer’s expense but shall not include foreign or federal excise taxes, state
or municipal sale or use taxes, all such taxes not limited to the foregoing being
responsibility of the purchaser.
3. No charge for travel and/or mileage will be allowed to the purchaser.
4. Antunes Controls reser ves the right to make changes in design or make any
improvements on any products.The right is always reserved to modify our equipment because of new technology, underwriter’s requirements and/or government
regulations.
5.The following are not covered under warranty:
a. Failure from neglect, abuse, careless handling and mis-application of unit.
b.Failure to observe guidelines for installation or improper voltage hook-up.
c. Failure caused by improper maintenance. (See maintenance guidelines
found in the operation instructions.)
d. Unless specifically allowed by Antunes Controls, no other charges may be
included under warranty.
This unit approved to U.L. 353 and applicable parts of U.L. 991
Division of A.J. Antunes & Co.
Model HLC
Model HLC
Dimensional Drawings
HLCI 1010851041 Printed in USA 01/02HLCI 1010851041 Printed in USA 01/02
Figure 1 Mounting Template
Figure 2- Wiring Diagram
High limit
When power is applied, the high limit relay will energize into the normally
closed position. If the high limit set point is exceeded then the relay will
de-energize opening the circuit.The high limit relay can only be reset when
the temperature has dropped below the set point and the manual reset
button (on the front label) is depressed.The high limit has a visual alarm
LED, which is located in the upper right corner.
Connections:
Thermistor Input - T1, T2 & T3 (100K ohm @ 25ºC)
Power Input - T4 & T5 (24-120 VAC)
High Limit Relay - T6 (N.O.), T7(COM)
Installation Note:
For optimum accuracy the sensor must be
mounted with a minimum of two feet of cable at the sensor lug
end being exposed to the same temperature as the sensor lug.
Unit Operation:
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.
BOTTOM VIEW
FULL ENCLOSURE - OPTIONAL
SIDE VIEW
FULL ENCLOSURE - OPTIONAL
2.47
5.12
2.56
3.47
2.97
Sensor
Red T1
Black T2
White T3
5.12
T1
T2
T3
T7
T6
T7 T6 T4 T5
Input
Voltage
COM
N.O.
24 VAC
Output
Relay
T4
T5
120 VAC
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