Design Data; Operation - Pentair TEC24VCNTLR Instruction Manual

Technical Data
Rated Voltage (VDC)
Operating Range (VDC)
Current @ Rated Voltage (Amps)
Power (Watts)
Operating Temperature (°F/°C)
Alarm Output Rating
Temperature Accuracy (°F/°C)
High Temperature Alarm (°F/°C)
Low Temperature Alarm (°F/°C)
* 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
ON – Standby
ON – Cooling
ON – Cooling/High Temp Alarm
ON – Heating
ON – Heating/Low Temp Alarm
ON – Temp Sensor Failure
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Design Data

-40 to +149/ -40 to +65
27/15 above cooling
* 18/10 below heating
setpoint, N/A if heating is
OFF
© 2011 Pentair Technical Products
Part Number
TEC24VCNTLR
24
18 to 30
17.2
410
1A @ 30 VDC
0.5A @ 60VDC
0.3A @ 120VAC
±3.6/2
setpoint
disabled.
Red Blue
OFF OFF
OFF OFF
OFF ON
Flashing ON
ON OFF
ON Flashing
Flashing Flashing
TEC48VCNTLR
48
40 to 60
8.6
410
-40 to +149/ -40 to +65
1A @ 30VDC
0.5A @ 60VDC
0.3A @ 120VAC
±3.6/2
27/15 above cooling
setpoint
* 18/10 below heating
setpoint, N/A if heating is
disabled.
Com-NO Com-NC
Closed Open
Open Closed
Open Closed
Closed Open
Open Closed
Closed Open
Closed Open
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