diff --git a/pykirdy/driver/kirdy_async.py b/pykirdy/driver/kirdy_async.py
index 6c315a7..05de13c 100644
--- a/pykirdy/driver/kirdy_async.py
+++ b/pykirdy/driver/kirdy_async.py
@@ -358,16 +358,16 @@ class Thermostat:
         """
         return await self._send_cmd(TARGET_THERMOSTAT, "SetTecMaxV", max_v)
 
-    async def set_tec_max_i_pos(self, max_i_pos):
+    async def set_tec_max_cooling_i(self, max_i_pos):
         """
-            Set Tec maximum positive output
+            Set Tec maximum cooling current (Settable Range: 0.0 - 1.0)
                 - max_i_pos: A
         """
         return await self._send_cmd(TARGET_THERMOSTAT, "SetTecMaxIPos", max_i_pos)
 
-    async def set_tec_max_i_neg(self, max_i_neg):
+    async def set_tec_max_heating_i(self, max_i_neg):
         """
-            Set Tec maximum negative output
+            Set Tec maximum heating current (Settable Range: 0.0 - 1.0)
                 - max_i_neg: A
         """
         return await self._send_cmd(TARGET_THERMOSTAT, "SetTecMaxINeg", max_i_neg)
diff --git a/pykirdy/pid_autotune.py b/pykirdy/pid_autotune.py
index e73d43c..8a280af 100644
--- a/pykirdy/pid_autotune.py
+++ b/pykirdy/pid_autotune.py
@@ -278,8 +278,8 @@ async def main():
     await kirdy.thermostat.set_temp_mon_upper_limit(target_temperature + 20)
     await kirdy.thermostat.set_temp_mon_lower_limit(target_temperature - 20)
 
-    await kirdy.thermostat.set_tec_max_i_pos(output_step)
-    await kirdy.thermostat.set_tec_max_i_neg(output_step)
+    await kirdy.thermostat.set_tec_max_cooling_i(output_step)
+    await kirdy.thermostat.set_tec_max_heating_i(output_step)
 
     # The Polling Rate of Temperature Adc is equal to the PID Update Interval
     await kirdy.thermostat.config_temp_adc_filter("Sinc5Sinc1With50hz60HzRejection", "F16SPS")