UEi C163KIT, Instruction Manual

14

In Heat Exch Setup Screen, select Fuel type (Natural Gas, Bio Oil, Heavy Oil, Pellets, Light Oil, LPG,  

Butane, Propane) 

HEAT EXCHANGER TEST

NOTE: 

Test results; O2, CO and Excess Air will show on the printout.

There are many methods to test heat exchanger integrity. One of these is to observe the Excess Air, O2 and CO readings both before 

and after the blower turns on. If the heat exchanger is sealed your O2 and CO readings should remain fairly stable. A breach in the heat 

exchanger may allow fresh air to be forced into the flue after the blower turns on due to a pressure increase in the plenum. The result 

may be a rise in the measured O2 in the stack gas and an increase in the Excess Air . In some sealed systems the fresh air drawn in 

through the breach may reduce the combustion air available leading to an increase in the CO reading. If either of these situations are 

present it is probable that there is a problem with the Heat Exchanger which may require additional testing and inspection.

NOTE:

 Many cracks are invisible to borescopes or the naked eye, and only open or separate from pressure or temperature changes 

during operations.

Select the Exch Test rotary dial position. Call for heat on the system. Observe and wait for O2 readings to stabilize.

Press  

  for Exchange    

 Press 

  for Run 

  Press 

 for Start

VIEWING/PRINTING

Press PRINT 

 BUTTON to print a full Temperature or Pressure Log. (printing is to either the IRP-2, the KMIRP or APP) 

    In Blower Off mode, 

     In Blower ON mode, 

Test results will appear 

          Press 

 or 

to select 

        Press 

  to start test  

     it will count down  

on screen Press 

          Run, View or Delete all  

     from 60 seconds 

          Press 

 to select