diff --git a/luxtronik/parameters.py b/luxtronik/parameters.py
index abb5905..0bdc843 100755
--- a/luxtronik/parameters.py
+++ b/luxtronik/parameters.py
@@ -739,8 +739,8 @@ def __init__(self, safe=True):
             692: Unknown("ID_Einst_Vorl_max_MK2"),
             693: Unknown("ID_SU_FrkdMK1"),
             694: Unknown("ID_SU_FrkdMK2"),
-            695: Unknown("ID_Ba_Hz_MK1_akt"),
-            696: Unknown("ID_Ba_Hz_MK2_akt"),
+            695: MixedCircuitMode("ID_Ba_Hz_MK1_akt"),
+            696: MixedCircuitMode("ID_Ba_Hz_MK2_akt"),
             697: Unknown("ID_Einst_Zirk_Ein_akt"),
             698: Unknown("ID_Einst_Zirk_Aus_akt"),
             699: Unknown("ID_Einst_Heizgrenze"),
@@ -1206,8 +1206,6 @@ def set(self, target, value):
             if parameter.writeable or not self.safe:
                 self.queue[index] = parameter.to_heatpump(value)
             else:
-                self.logger.warning(
-                    "Parameter '%s' not safe for writing!", parameter.name
-                )
+                self.logger.warning("Parameter '%s' not safe for writing!", parameter.name)
         else:
             self.logger.warning("Parameter '%s' not found", target)