© 2011 Pentair Technical Products
89083081
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Design Data
Technical Data
Part Number
TEC24VCNTLR
TEC48VCNTLR
Rated Voltage (VDC)
24
48
Operating Range (VDC)
18 to 30
40 to 60
Current @ Rated Voltage (Amps)
17.2
8.6
Power (Watts)
410
410
Operating Temperature (°F/°C)
-40 to +149/ -40 to +65
-40 to +149/ -40 to +65
Alarm Output Rating
1A @ 30 VDC
0.5A @ 60VDC
0.3A @ 120VAC
1A @ 30VDC
0.5A @ 60VDC
0.3A @ 120VAC
Temperature Accuracy (°F/°C)
±3.6/2
±3.6/2
High Temperature Alarm (°F/°C)
27/15 above cooling
setpoint
27/15 above cooling
setpoint
Low Temperature Alarm (°F/°C)
* 18/10 below heating
setpoint, N/A if heating is
disabled.
* 18/10 below heating
setpoint, N/A if heating is
disabled.
* If heating is disabled, there is no low temp alarm.
Operation
The controller will command the TEC to cool if the temperature read by the thermistor is
above the cooling setpoint, and heat if the temperature is below the heating setpoint. If
the temperature read by the thermistor is between the cooling and heating setpoints, the
controller will be in a standby mode with no power applied to the TEC modules.
When going from cooling to heating or heating to cooling, the control logic provides
for a minimum ten minute delay when applying power to the peltier chips. The delay is
an added feature to minimize the stress on the TEC modules and controller by assuring
that the peltier chip internal temperatures are able to equalize before reversing the DC
current through the chips. The delay will only affect the controller response in the unlikely
circumstance that the system experiences a rapid temperature swing from above the
cooling setpoint to below the heating setpoint, or visa versa.
The normally open (NO) alarm output contact will close when an alarm occurs. The
normally closed (NC) contact will open when an alarm occurs.
LED and alarm connection status
Status
Red
Blue
Com-NO
Com-NC
OFF
OFF
OFF
Closed
Open
ON – Standby
OFF
OFF
Open
Closed
ON – Cooling
OFF
ON
Open
Closed
ON – Cooling/High Temp Alarm
Flashing
ON
Closed
Open
ON – Heating
ON
OFF
Open
Closed
ON – Heating/Low Temp Alarm
ON
Flashing
Closed
Open
ON – Temp Sensor Failure
Flashing
Flashing
Closed
Open
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http://www.RSPSupply.com/p-6058-Hoffman-TEC24VCNTLR-Thermoelectric-Temperature-Controller-24V.aspx
