merged master

lbl-srg · Aug 31, 2023 · da0b636 · da0b636
2 parents 0976d60 + 1ad1579
commit da0b636
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diff --git a/...trols/OBC/ASHRAE/G36/AHUs/MultiZone/VAV/Economizers/Subsequences/Limits/SeparateWithDP.mo b/...trols/OBC/ASHRAE/G36/AHUs/MultiZone/VAV/Economizers/Subsequences/Limits/SeparateWithDP.mo
@@ -201,8 +201,11 @@ protected
   Buildings.Controls.OBC.CDL.Integers.Equal intEqu
     "Check if operation mode is occupied"
     annotation (Placement(transformation(extent={{-160,20},{-140,40}})));
-  Buildings.Controls.OBC.CDL.Logical.And3 enaMinDam
-    "Check if the minimum outdoor air damper should be enabled"
+  Buildings.Controls.OBC.CDL.Logical.And enaMinDam1
+    "Check if the minimum outdoor air damper should be enabled, one of two stacked And blocks"
+    annotation (Placement(transformation(extent={{-100,60},{-80,80}})));
+  Buildings.Controls.OBC.CDL.Logical.And enaMinDam2
+    "Check if the minimum outdoor air damper should be enabled, one of two stacked And blocks"
     annotation (Placement(transformation(extent={{-40,60},{-20,80}})));
   Buildings.Controls.OBC.CDL.Reals.Sources.Constant one(
     final k=1) "Constant"
@@ -315,24 +318,20 @@ equation
           {-42,-98}}, color={0,0,127}));
   connect(moaP.y, gai.u) annotation (Line(points={{-98,-90},{-90,-90},{-90,-120},
           {-82,-120}}, color={0,0,127}));
-  connect(enaMinDam.y, enaRetDamMin.u1) annotation (Line(points={{-18,70},{-10,70},
-          {-10,10},{38,10}},         color={255,0,255}));
+  connect(enaMinDam2.y, enaRetDamMin.u1) annotation (Line(points={{-18,70},{-10,
+          70},{-10,10},{38,10}}, color={255,0,255}));
   connect(les.y, enaRetDamMin.u2) annotation (Line(points={{-18,-30},{10,-30},{10,
           2},{38,2}},      color={255,0,255}));
   connect(enaRetDamMin.y, enaDis.u)
     annotation (Line(points={{62,10},{78,10}},  color={255,0,255}));
-  connect(enaMinDam.y, disMinDam.u) annotation (Line(points={{-18,70},{-10,70},{
-          -10,-60},{-2,-60}}, color={255,0,255}));
+  connect(enaMinDam2.y, disMinDam.u) annotation (Line(points={{-18,70},{-10,70},
+          {-10,-60},{-2,-60}}, color={255,0,255}));
   connect(disMinDam.y, disRetDamMin.u1)
     annotation (Line(points={{22,-60},{38,-60}}, color={255,0,255}));
   connect(gre.y, disRetDamMin.u2) annotation (Line(points={{-18,-90},{30,-90},{30,
           -68},{38,-68}},color={255,0,255}));
   connect(disRetDamMin.y, enaDis.clr) annotation (Line(points={{62,-60},{70,-60},
           {70,4},{78,4}},   color={255,0,255}));
-  connect(greThr.y, enaMinDam.u1) annotation (Line(points={{-58,150},{-50,150},{
-          -50,78},{-42,78}},   color={255,0,255}));
-  connect(intEqu.y, enaMinDam.u3) annotation (Line(points={{-138,30},{-60,30},{-60,
-          62},{-42,62}},   color={255,0,255}));
   connect(minDp.y, maxRetDam.u_s) annotation (Line(points={{-98,170},{118,170}},
                                 color={0,0,127}));
   connect(dpMinOutDam, maxRetDam.u_m)
@@ -361,10 +360,8 @@ equation
     annotation (Line(points={{-178,-170},{240,-170}}, color={0,0,127}));
   connect(outDamPhyPosMaxSig.y, yOutDam_max)
     annotation (Line(points={{-178,-210},{240,-210}}, color={0,0,127}));
-  connect(enaMinDam.y, y1MinOutDam)
+  connect(enaMinDam2.y, y1MinOutDam)
     annotation (Line(points={{-18,70},{240,70}}, color={255,0,255}));
-  connect(u1SupFan, enaMinDam.u2)
-    annotation (Line(points={{-240,70},{-42,70}}, color={255,0,255}));
   connect(effAbsOutAir_normalized, pro1.u1) annotation (Line(points={{-240,300},
           {-200,300},{-200,306},{-182,306}}, color={0,0,127}));
   connect(effAbsOutAir_normalized, pro1.u2) annotation (Line(points={{-240,300},
@@ -401,6 +398,14 @@ equation
           170},{-90,170},{-90,150},{-82,150}}, color={0,0,127}));
   connect(one2.y, minDp1.u) annotation (Line(points={{-98,250},{-80,250},{-80,270},
           {18,270}}, color={0,0,127}));
+  connect(intEqu.y, enaMinDam1.u2) annotation (Line(points={{-138,30},{-112,30},
+          {-112,62},{-102,62}}, color={255,0,255}));
+  connect(u1SupFan, enaMinDam1.u1)
+    annotation (Line(points={{-240,70},{-102,70}}, color={255,0,255}));
+  connect(greThr.y, enaMinDam2.u1) annotation (Line(points={{-58,150},{-52,150},
+          {-52,70},{-42,70}}, color={255,0,255}));
+  connect(enaMinDam1.y, enaMinDam2.u2) annotation (Line(points={{-78,70},{-60,70},
+          {-60,62},{-42,62}}, color={255,0,255}));
 annotation (
   defaultComponentName="ecoLim",
   Icon(coordinateSystem(preserveAspectRatio=false, extent={{-100,-100},{100,100}}),
@@ -552,6 +557,13 @@ point.
 revisions="<html>
 <ul>
 <li>
+August 29, 2023, by Hongxiang Fu:<br/>
+Because of the removal of <code>Logical.And3</code> based on ASHRAE 231P,
+replaced it with a stack of two <code>Logical.And</code> blocks.
+This is for
+<a href=\"https://github.com/lbl-srg/modelica-buildings/issues/2465\">#2465</a>.
+</li>
+<li>
 August 1, 2020, by Jianjun Hu:<br/>
 First implementation.
 </li>

diff --git a/Buildings/Controls/OBC/ASHRAE/G36/AHUs/SingleZone/VAV/Economizers/Subsequences/Enable.mo b/Buildings/Controls/OBC/ASHRAE/G36/AHUs/SingleZone/VAV/Economizers/Subsequences/Enable.mo
@@ -108,9 +108,12 @@ block Enable
     annotation (Placement(transformation(extent={{180,-260},{220,-220}}),
         iconTransformation(extent={{100,-80},{140,-40}})));
 
-  Buildings.Controls.OBC.CDL.Logical.And3 andEnaDis
+  Buildings.Controls.OBC.CDL.Logical.And andFrePro
+    "Logical and that checks freeze protection stage"
+    annotation (Placement(transformation(extent={{-10,30},{10,50}})));
+  Buildings.Controls.OBC.CDL.Logical.And andEnaDis
     "Logical and that checks freeze protection stage and zone state"
-     annotation (Placement(transformation(extent={{40,30},{60,50}})));
+    annotation (Placement(transformation(extent={{40,30},{60,50}})));
   Buildings.Controls.OBC.CDL.Logical.TrueFalseHold truFalHol(
     trueHoldDuration=600) "10 min on/off delay"
     annotation (Placement(transformation(extent={{120,210},{140,230}})));
@@ -209,16 +212,13 @@ equation
           {-60,-132},{38,-132}}, color={0,0,127}));
   connect(uOutDam_max, maxOutDam.u3) annotation (Line(points={{-200,-130},{-80,-130},
           {-80,-148},{38,-148}}, color={0,0,127}));
-  connect(andEnaDis.y, not2.u)
-    annotation (Line(points={{62,40},{72,40},{72,-20},{-20,-20},{-20,-60},{-12,-60}},
-        color={255,0,255}));
+  connect(andEnaDis.y, not2.u) annotation (Line(points={{62,40},{72,40},{72,-20},
+          {-20,-20},{-20,-60},{-12,-60}}, color={255,0,255}));
   connect(minRetDam.y, yRetDam_min)
     annotation (Line(points={{62,-240},{200,-240}}, color={0,0,127}));
   connect(truFalHol.y, and1.u1)
     annotation (Line(points={{142,220},{164,220},{164,130},{-26,130},{-26,110},{2,110}},
         color={255,0,255}));
-  connect(and1.y, andEnaDis.u1)
-    annotation (Line(points={{26,110},{30,110},{30,48},{38,48}}, color={255,0,255}));
   connect(u1SupFan, and1.u2) annotation (Line(points={{-200,110},{-102,110},{-102,
           102},{2,102}}, color={255,0,255}));
   connect(retDamPhyMax.y, minRetDam.u1) annotation (Line(points={{-118,-210},
@@ -241,10 +241,6 @@ equation
     annotation (Line(points={{-200,0},{-82,0}}, color={255,127,0}));
   connect(uFreProSta, intEqu.u1)
     annotation (Line(points={{-200,60},{-82,60}}, color={255,127,0}));
-  connect(intEqu.y, andEnaDis.u2)
-    annotation (Line(points={{-58,60},{-10,60},{-10,40},{38,40}}, color={255,0,255}));
-  connect(not3.y, andEnaDis.u3)
-    annotation (Line(points={{-22,0},{8,0},{8,32},{38,32}}, color={255,0,255}));
   connect(hysOutTem.y, or2.u1)
     annotation (Line(points={{-78,250},{-20,250},{-20,220},{38,220}},
                                                   color={255,0,255}));
@@ -254,6 +250,14 @@ equation
           {38,212}}, color={255,0,255}));
   connect(or2.y, truFalHol.u) annotation (Line(points={{62,220},{118,220}},
                       color={255,0,255}));
+  connect(not3.y, andFrePro.u2) annotation (Line(points={{-22,0},{-16,0},{-16,
+          32},{-12,32}}, color={255,0,255}));
+  connect(andFrePro.u1, intEqu.y) annotation (Line(points={{-12,40},{-48,40},{-48,
+          60},{-58,60}}, color={255,0,255}));
+  connect(and1.y, andEnaDis.u1) annotation (Line(points={{26,110},{32,110},{32,
+          40},{38,40}}, color={255,0,255}));
+  connect(andEnaDis.u2, andFrePro.y) annotation (Line(points={{38,32},{20,32},{
+          20,40},{12,40}}, color={255,0,255}));
 annotation (
   defaultComponentName = "enaDis",
   Icon(graphics={
@@ -381,6 +385,13 @@ src=\"modelica://Buildings/Resources/Images/Controls/OBC/ASHRAE/G36/AHUs/SingleZ
 </html>", revisions="<html>
 <ul>
 <li>
+August 29, 2023, by Hongxiang Fu:<br/>
+Because of the removal of <code>Logical.And3</code> based on ASHRAE 231P,
+replaced it with a stack of two <code>Logical.And</code> blocks.
+This is for
+<a href=\"https://github.com/lbl-srg/modelica-buildings/issues/2465\">#2465</a>.
+</li>
+<li>
 August 1, 2020, by Jianjun Hu:<br/>
 Updated according to ASHRAE G36, May 2020.
 </li>

diff --git a/Buildings/Controls/OBC/ASHRAE/G36/AHUs/SingleZone/VAV/Economizers/Subsequences/Limits.mo b/Buildings/Controls/OBC/ASHRAE/G36/AHUs/SingleZone/VAV/Economizers/Subsequences/Limits.mo
@@ -184,7 +184,9 @@ protected
     annotation (Placement(transformation(extent={{-140,-160},{-120,-140}})));
   Buildings.Controls.OBC.CDL.Integers.Equal intEqu1 "Check if operation mode is occupied"
     annotation (Placement(transformation(extent={{-100,-140},{-80,-120}})));
-  Buildings.Controls.OBC.CDL.Logical.And3 and3 "Logical and"
+  Buildings.Controls.OBC.CDL.Logical.And and1 "Logical and"
+    annotation (Placement(transformation(extent={{-70,-120},{-50,-100}})));
+  Buildings.Controls.OBC.CDL.Logical.And and2 "Logical and"
     annotation (Placement(transformation(extent={{-60,-80},{-40,-60}})));
   Buildings.Controls.OBC.CDL.Reals.Switch enaDis2
     "Zero minimum damper position when the min OA is near zero"
@@ -253,13 +255,7 @@ equation
     annotation (Line(points={{-102,-98},{-110,-98},{-110,-110},{-118,-110}}, color={255,127,0}));
   connect(uFreProSta, intLesEqu.u1)
     annotation (Line(points={{-180,-90},{-102,-90}},   color={255,127,0}));
-  connect(u1SupFan, and3.u1) annotation (Line(points={{-180,-40},{-80,-40},{-80,
-          -62},{-62,-62}}, color={255,0,255}));
-  connect(intLesEqu.y, and3.u2) annotation (Line(points={{-78,-90},{-74,-90},{-74,
-          -70},{-62,-70}},      color={255,0,255}));
-  connect(intEqu1.y, and3.u3) annotation (Line(points={{-78,-130},{-68,-130},{-68,
-          -78},{-62,-78}},     color={255,0,255}));
-  connect(and3.y, not1.u)
+  connect(and2.y, not1.u)
     annotation (Line(points={{-38,-70},{-22,-70}}, color={255,0,255}));
   connect(VOutMinSet_flow, noZerMin.u) annotation (Line(points={{-180,180},{-30,
           180},{-30,-160},{18,-160}}, color={0,0,127}));
@@ -272,6 +268,14 @@ equation
   connect(zer.y, enaDis2.u3) annotation (Line(points={{102,-190},{110,-190},{110,
           -168},{118,-168}}, color={0,0,127}));
 
+  connect(intLesEqu.y, and1.u1) annotation (Line(points={{-78,-90},{-74,-90},{-74,
+          -110},{-72,-110}}, color={255,0,255}));
+  connect(and1.u2, intEqu1.y) annotation (Line(points={{-72,-118},{-74,-118},{-74,
+          -130},{-78,-130}}, color={255,0,255}));
+  connect(and1.y, and2.u2) annotation (Line(points={{-48,-110},{-40,-110},{-40,-86},
+          {-66,-86},{-66,-78},{-62,-78}}, color={255,0,255}));
+  connect(u1SupFan, and2.u1) annotation (Line(points={{-180,-40},{-66,-40},{-66,
+          -70},{-62,-70}}, color={255,0,255}));
 annotation (
     defaultComponentName = "damLim",
     Icon(graphics={
@@ -444,6 +448,13 @@ src=\"modelica://Buildings/Resources/Images/Controls/OBC/ASHRAE/G36/AHUs/SingleZ
 </html>", revisions="<html>
 <ul>
 <li>
+August 29, 2023, by Hongxiang Fu:<br/>
+Because of the removal of <code>Logical.And3</code> based on ASHRAE 231P,
+replaced it with a stack of two <code>Logical.And</code> blocks.
+This is for
+<a href=\"https://github.com/lbl-srg/modelica-buildings/issues/2465\">#2465</a>.
+</li>
+<li>
 August 1, 2020, by Jianjun Hu:<br/>
 Updated according to ASHRAE G36, May 2020.
 </li>

diff --git a/Buildings/Controls/OBC/ASHRAE/G36/TerminalUnits/CoolingOnly/Subsequences/Alarms.mo b/Buildings/Controls/OBC/ASHRAE/G36/TerminalUnits/CoolingOnly/Subsequences/Alarms.mo
@@ -61,7 +61,7 @@ block Alarms "Generate alarms of cooling only terminal unit"
     final min=0,
     final unit="1")
     "Damper position setpoint"
-    annotation (Placement(transformation(extent={{-280,-230},{-240,-190}}),
+    annotation (Placement(transformation(extent={{-280,-240},{-240,-200}}),
         iconTransformation(extent={{-140,-100},{-100,-60}})));
   Buildings.Controls.OBC.CDL.Interfaces.IntegerOutput yLowFloAla
     "Low airflow alarms"
@@ -196,9 +196,12 @@ block Alarms "Generate alarms of cooling only terminal unit"
     final t=damPosHys,
     final h=0.5*damPosHys)
     "Check if damper position is near zero"
-    annotation (Placement(transformation(extent={{-200,-220},{-180,-200}})));
-  Buildings.Controls.OBC.CDL.Logical.And3 leaDamAla
-    "Check if generating leak damper alarms"
+    annotation (Placement(transformation(extent={{-200,-230},{-180,-210}})));
+  Buildings.Controls.OBC.CDL.Logical.And leaDamAla1
+    "Check if generating leak damper alarms, one of two stacked And blocks"
+    annotation (Placement(transformation(extent={{-100,-180},{-80,-160}})));
+  Buildings.Controls.OBC.CDL.Logical.And leaDamAla2
+    "Check if generating leak damper alarms, one of two stacked And blocks"
     annotation (Placement(transformation(extent={{-40,-180},{-20,-160}})));
   Buildings.Controls.OBC.CDL.Logical.Not not5 "Logical not"
     annotation (Placement(transformation(extent={{100,-220},{120,-200}})));
@@ -227,7 +230,7 @@ block Alarms "Generate alarms of cooling only terminal unit"
   Buildings.Controls.OBC.CDL.Integers.Sources.Constant occMod(
     final k=Buildings.Controls.OBC.ASHRAE.G36.Types.OperationModes.occupied)
     "Occupied mode"
-    annotation (Placement(transformation(extent={{-160,-200},{-140,-180}})));
+    annotation (Placement(transformation(extent={{-160,-210},{-140,-190}})));
   Buildings.Controls.OBC.CDL.Integers.Equal isOcc
     "Check if current operation mode is occupied mode"
     annotation (Placement(transformation(extent={{-100,-150},{-80,-130}})));
@@ -297,11 +300,7 @@ equation
   connect(proInt.y, yLowFloAla)
     annotation (Line(points={{222,150},{260,150}}, color={255,127,0}));
   connect(uDam, cloDam.u)
-    annotation (Line(points={{-260,-210},{-202,-210}}, color={0,0,127}));
-  connect(u1Fan, leaDamAla.u2) annotation (Line(points={{-260,-100},{-220,-100},
-          {-220,-170},{-42,-170}},color={255,0,255}));
-  connect(cloDam.y, leaDamAla.u3) annotation (Line(points={{-178,-210},{-100,-210},
-          {-100,-178},{-42,-178}}, color={255,0,255}));
+    annotation (Line(points={{-260,-220},{-202,-220}}, color={0,0,127}));
   connect(not5.y, assMes3.u)
     annotation (Line(points={{122,-210},{138,-210}}, color={255,0,255}));
   connect(booToInt3.y, yLeaDamAla)
@@ -318,10 +317,6 @@ equation
     annotation (Line(points={{-78,-40},{-42,-40}}, color={255,0,255}));
   connect(not3.y, and5.u2) annotation (Line(points={{-178,-100},{-60,-100},{-60,
           -48},{-42,-48}}, color={255,0,255}));
-  connect(gre1.y, leaDamAla.u1) annotation (Line(points={{-78,-40},{-70,-40},{-70,
-          -162},{-42,-162}}, color={255,0,255}));
-  connect(leaDamAla.y, truDel3.u)
-    annotation (Line(points={{-18,-170},{18,-170}}, color={255,0,255}));
   connect(truDel3.y, booToInt3.u)
     annotation (Line(points={{42,-170},{138,-170}}, color={255,0,255}));
   connect(truDel3.y, not5.u) annotation (Line(points={{42,-170},{80,-170},{80,-210},
@@ -337,12 +332,11 @@ equation
   connect(u1Fan, fanIni.u) annotation (Line(points={{-260,-100},{-220,-100},{-220,
           0},{-202,0}}, color={255,0,255}));
   connect(fanIni.y, and11.u2) annotation (Line(points={{-178,0},{-130,0},{-130,
-          32},{-122,32}},
-                      color={255,0,255}));
+          32},{-122,32}}, color={255,0,255}));
   connect(fanIni.y, and10.u2) annotation (Line(points={{-178,0},{-130,0},{-130,162},
           {-122,162}}, color={255,0,255}));
-  connect(occMod.y,isOcc. u2) annotation (Line(points={{-138,-190},{-120,-190},{
-          -120,-148},{-102,-148}}, color={255,127,0}));
+  connect(occMod.y,isOcc. u2) annotation (Line(points={{-138,-200},{-120,-200},
+          {-120,-148},{-102,-148}},color={255,127,0}));
   connect(uOpeMod,isOcc. u1)
     annotation (Line(points={{-260,-140},{-102,-140}}, color={255,127,0}));
   connect(and6.y, booToInt2.u)
@@ -371,6 +365,16 @@ equation
           {38,162}}, color={255,0,255}));
   connect(isOcc.y, and3.u2) annotation (Line(points={{-78,-140},{30,-140},{30,82},
           {38,82}}, color={255,0,255}));
+  connect(u1Fan, leaDamAla1.u1) annotation (Line(points={{-260,-100},{-220,-100},
+          {-220,-170},{-102,-170}}, color={255,0,255}));
+  connect(cloDam.y, leaDamAla1.u2) annotation (Line(points={{-178,-220},{-110,
+          -220},{-110,-178},{-102,-178}}, color={255,0,255}));
+  connect(leaDamAla1.y, leaDamAla2.u1)
+    annotation (Line(points={{-78,-170},{-42,-170}}, color={255,0,255}));
+  connect(gre1.y, leaDamAla2.u2) annotation (Line(points={{-78,-40},{-70,-40},{
+          -70,-178},{-42,-178}}, color={255,0,255}));
+  connect(leaDamAla2.y, truDel3.u)
+    annotation (Line(points={{-18,-170},{18,-170}}, color={255,0,255}));
 annotation (defaultComponentName="ala",
   Icon(coordinateSystem(preserveAspectRatio=false, extent={{-100,-100},{100,100}}),
        graphics={
@@ -467,6 +471,13 @@ fan serving the zone is proven on (<code>uFan=true</code>), generate a Level
 </html>",revisions="<html>
 <ul>
 <li>
+August 29, 2023, by Hongxiang Fu:<br/>
+Because of the removal of <code>Logical.And3</code> based on ASHRAE 231P,
+replaced it with a stack of two <code>Logical.And</code> blocks.
+This is for
+<a href=\"https://github.com/lbl-srg/modelica-buildings/issues/2465\">#2465</a>.
+</li>
+<li>
 August 23, 2023, by Jianjun Hu:<br/>
 Added delay <code>staTim</code> to allow the system becoming stablized.
 This is for <a href=\"https://github.com/lbl-srg/modelica-buildings/issues/3257\">issue 3257</a>.

diff --git a/Buildings/Controls/OBC/ASHRAE/G36/TerminalUnits/DualDuctColdDuctMin/Subsequences/Alarms.mo b/Buildings/Controls/OBC/ASHRAE/G36/TerminalUnits/DualDuctColdDuctMin/Subsequences/Alarms.mo
@@ -649,6 +649,13 @@ fan serving the zone is proven on (<code>u1HeaFan=true</code>), generate a Level
 </html>",revisions="<html>
 <ul>
 <li>
+August 29, 2023, by Hongxiang Fu:<br/>
+Because of the removal of <code>Logical.And3</code> based on ASHRAE 231P,
+replaced it with a stack of two <code>Logical.And</code> blocks.
+This is for
+<a href=\"https://github.com/lbl-srg/modelica-buildings/issues/2465\">#2465</a>.
+</li>
+<li>
 August 23, 2023, by Jianjun Hu:<br/>
 Added delay <code>staTim</code> to allow the system becoming stablized.
 This is for <a href=\"https://github.com/lbl-srg/modelica-buildings/issues/3257\">issue 3257</a>.

diff --git a/...ontrols/OBC/ASHRAE/G36/TerminalUnits/DualDuctMixConDischargeSensor/Subsequences/Alarms.mo b/...ontrols/OBC/ASHRAE/G36/TerminalUnits/DualDuctMixConDischargeSensor/Subsequences/Alarms.mo
@@ -511,6 +511,13 @@ generate a Level 4 alarm.
 </html>",revisions="<html>
 <ul>
 <li>
+August 29, 2023, by Hongxiang Fu:<br/>
+Because of the removal of <code>Logical.And3</code> based on ASHRAE 231P,
+replaced it with a stack of two <code>Logical.And</code> blocks.
+This is for
+<a href=\"https://github.com/lbl-srg/modelica-buildings/issues/2465\">#2465</a>.
+</li>
+<li>
 August 23, 2023, by Jianjun Hu:<br/>
 Added delay <code>staTim</code> to allow the system becoming stablized.
 This is for <a href=\"https://github.com/lbl-srg/modelica-buildings/issues/3257\">issue 3257</a>.

diff --git a/...gs/Controls/OBC/ASHRAE/G36/TerminalUnits/DualDuctMixConInletSensor/Subsequences/Alarms.mo b/...gs/Controls/OBC/ASHRAE/G36/TerminalUnits/DualDuctMixConInletSensor/Subsequences/Alarms.mo
@@ -649,6 +649,13 @@ fan serving the zone is proven on (<code>u1HeaFan=true</code>), generate a Level
 </html>",revisions="<html>
 <ul>
 <li>
+August 29, 2023, by Hongxiang Fu:<br/>
+Because of the removal of <code>Logical.And3</code> based on ASHRAE 231P,
+replaced it with a stack of two <code>Logical.And</code> blocks.
+This is for
+<a href=\"https://github.com/lbl-srg/modelica-buildings/issues/2465\">#2465</a>.
+</li>
+<li>
 August 23, 2023, by Jianjun Hu:<br/>
 Added delay <code>staTim</code> to allow the system becoming stablized.
 This is for <a href=\"https://github.com/lbl-srg/modelica-buildings/issues/3257\">issue 3257</a>.

diff --git a/Buildings/Controls/OBC/ASHRAE/G36/TerminalUnits/DualDuctSnapActing/Subsequences/Alarms.mo b/Buildings/Controls/OBC/ASHRAE/G36/TerminalUnits/DualDuctSnapActing/Subsequences/Alarms.mo
@@ -851,6 +851,13 @@ generate a Level 4 alarm.
 </html>",revisions="<html>
 <ul>
 <li>
+August 29, 2023, by Hongxiang Fu:<br/>
+Because of the removal of <code>Logical.And3</code> based on ASHRAE 231P,
+replaced it with a stack of two <code>Logical.And</code> blocks.
+This is for
+<a href=\"https://github.com/lbl-srg/modelica-buildings/issues/2465\">#2465</a>.
+</li>
+<li>
 August 23, 2023, by Jianjun Hu:<br/>
 Added delay <code>staTim</code> to allow the system becoming stablized.
 This is for <a href=\"https://github.com/lbl-srg/modelica-buildings/issues/3257\">issue 3257</a>.