Honeywell UDC2500 ユーザーズマニュアル

If the symptom still persists, refer to the installation section in this manual to ensure 
proper installation and proper use of the controller in your system. 

The troubleshooting procedures are listed in numerical order as they appear in Table 7-4. 
Each procedure lists what to do if you have that particular failure and how to do it or 
where to find the data needed to accomplish the task. 

 

 

You will need the following equipment in order to troubleshoot the symptoms listed in 
the tables that follow: 

• Multimeter – Capable of measuring millivolts, milliamps and resistance. 

• Calibration sources – T/C, mV, Volt, etc.