diff --git a/idd/Energy+.idd.in b/idd/Energy+.idd.in
index fa0cf2f26d9..78444fc50ea 100644
--- a/idd/Energy+.idd.in
+++ b/idd/Energy+.idd.in
@@ -73676,6 +73676,9 @@ Chiller:Electric:EIR,
        \note corresponds to this fraction multiplied by the maximum condenser flow rate. This input is only used
        \note when the "Condenser Flow Control" input is set to "ModulatedChillerPLR", "ModulatedLoopPLR" or
        \note "ModulatedDeltaTemperature".
+       \minimum 0.0
+       \maximum 1
+       \default 0.2
   A20, \field Thermosiphon Capacity Fraction Curve Name
        \type object-list
        \object-list UniVariateFunctions
@@ -73924,6 +73927,9 @@ Chiller:Electric:ReformulatedEIR,
        \note corresponds to this fraction multiplied by the maximum condenser flow rate. This input is only used
        \note when the "Condenser Flow Control" input is set to "ModulatedChillerPLR", "ModulatedLoopPLR" or
        \note "ModulatedDeltaTemperature".
+       \minimum 0.0
+       \maximum 1
+       \default 0.2
   A19, \field Thermosiphon Capacity Fraction Curve Name
        \type object-list
        \object-list UniVariateFunctions