Jackson Systems Limit-Stat LS-HC Installation Instructions Download Page 2

7 – SETPOINT 

4. SPECIFICATIONS 

 

ELECTRICAL DATA 
 
Electrical Rating: 
 

20 to 30 VAC 50/60 Hz. 

 

0.05 to 1.2 Amps (Load per terminal) 

 

1.5 Amps Maximum Total Load 
 (All terminals combined) 

 
THERMAL DATA 
 
Setpoint Temperature Range: 

45° to 90° F  

(7° to 32° C) 

Limiter: Fixed Range 73° F (22.5° C)

 

Operating Ambient Temperature: 

32

°

F to 105

°

 F 

Operating Humidity Range: 

0 to 90% RH (non-

condensing) 

Shipping Temperature Range: 

-40°F to 150°F 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

5. OPERATION 

 
The Model LS-HC Limit-Stat

 operates like an ordinary 

manual changeover heating/cooling, digital thermostat. 
In normal operation, it allows full user control in selecting 
mode (HEAT/COOL) and fan (ON/AUTO) as well as 
adjustment of heating and cooling setpoints. However, 
when the thermostat is in the heating mode of operation, 
the built-in limiter will prevent the temperature from rising 
above 73° F when the setpoint is adjusted above the 
limit range. This unique feature greatly reduces energy 
costs.  
 

 

 

 

 

 
 

 
 

TYPICAL WIRING DIAGRAM 

 
 

  

 
 
 
 

 

 

LIMITER

Wire to furnace ‘W’ terminal 

NOTE: 

RED jumper wire (provided with thermostat) 

must be connected between thermostat RH 

and RC terminals for proper thermostat 

operation with this system. 

LIMITER

 Wire to furnace ‘W’ terminal 

TOLL-FREE: 888-652-9663   FAX: 317-227-1034  

www.jacksonsystems.com 

5418 ELMWOOD AVENUE -   INDIANAPOLIS, IN  46203 

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