diff --git a/src/nodeClass.js b/src/nodeClass.js
index 917f1c0..62a6226 100644
--- a/src/nodeClass.js
+++ b/src/nodeClass.js
@@ -3,7 +3,7 @@ const { Reactor_CSTR, Reactor_PFR } = require('./reactor_class.js');
 
 class nodeClass {
     /**
-    * Create ReactorNode.
+    * Construct ReactorNode.
     * @param {object} uiConfig - Node-RED node configuration
     * @param {object} RED    - Node-RED runtime API
     * @param {object} nodeInstance - Node-RED node instance
@@ -23,7 +23,10 @@ class nodeClass {
 
     }
 
-    _attachInputHandler() { // Handle input messages
+    /**
+     * Handle node-red input messages
+     */
+    _attachInputHandler() {
         this.node.on('input', (msg, send, done) => {
             let toggleUpdate = false;
 
@@ -58,6 +61,10 @@ class nodeClass {
         });
     }
 
+    /**
+     * Parse node configuration
+     * @param {object} uiConfig Config set in UI in node-red
+     */
     _loadConfig(uiConfig) {
         this.config = {
             reactor_type: uiConfig.reactor_type,
@@ -84,6 +91,9 @@ class nodeClass {
         }
     }
 
+    /**
+     * Setup reactor class based on config
+     */
     _setupClass() {
         let new_reactor;