Fieldpiece HG3 - Wireless HVAC Guide System Analyzer - Manual (Page 19)

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4.2 Combustion INPUT FORM
Inputs
Fuel
Select Natural Gas, Oil #2 or Propane.
Type Default: Condensing. Other selection: Non-Condensing. The pres-
ence of a condensate line indicates a condensing unit, otherwise it is a
non-condensing unit.
Primary Temp
(Primary Temperature) Measure the temperature of the
air being introduced to the combustion process.
O
2 (Oxygen) Connect the AOX2 with the switch on %O
2
and take a sample
of the combustion products in the flue/stack (within 18 inches from the
start of the flue).
Flue Temp (Flue Temperature) Connect the ATR1 temperature probe to
the AOX2. Set the AOX2 on TEMP and measure the temperature of the
combustion products in the flue/stack (18 inches from the start of the
flue).
CO
(Carbon Monoxide) Connect a flue gas CO detector and take a sample
of the combustion products in the flue/stack in the same location as the
O2% measurement (within 18 inches from the start of the flue). Enter
your measured CO value into the HG3 for calculation.
Draft Press
(Draft Pressure) Air pressure taken in the flue. Suggested Ac-
cessories: ADMN2, ASP2.
Customer ID Used in the file name to save, recall and download tests. Use
arrow buttons to "type" in each character. Press RIGHT arrow to get to
the first character. Once complete press ENTER to lock it in.
Units
Select English or Metric units.
Combustion Analysis INPUT FORM.
Fuel drop down menu.
Press Enter to see the fuel list.
Take measurements using
Fieldpiece Accessory Heads
or manual entry.
Scroll to appropriate Fuel
using the UP/DOWN Arrows.
Press Enter to lock it in.