Bacharach Fyrite Pro User manual

Fyrite®Pro

Quick Start Guide 0024-9396

Rev. 8 – May 2010

This Guide provides basic operating and maintenance information for

Fyrite Pro Model 100/105/110/120/125. Detailed information concerning

the analyzer’s operation, set up, calibration, maintenance, and parts list is

contained in Instruction 0024-9395.

Analyzer Turn On and Warm Up

1. Depending on the analyzer’s model

number, connect the probe’s sample-

gas hose and, if used, its draft hose

and thermocouple connector to the

bottom of the analyzer as shown in

Figure 1.

If the optional Combustion-Air

Thermocouple is being used, plug it

into the T-AIR connector.

Figure 1. Analyzer Connections

T - S T A C K

T - A I R

G A S D R A F T C O M B U S T I O N - A I R

T H E R M O C O U P L E

( O p t i o n a l

D I F F E R E N T I A L

P R E S S U R E H O S

( O p t i o n a l

S A M P L E G A S

T H E R M O C O U P L E

( T - S T A C K

A C

ADAPTER

J A C K

D R A F T H O S E

S A M P L E - G A S

H O S E

W A T E R

T R A P / F I L T E R

ASSEM BLY

P R O B E T U B E

P R O B E

H A N D L E

P R O B E S T O P

Instruction 0024-9396

Fyrite Pro Quick Reference Guide

2. Turn ON the analyzer by pressing its I/O button and observe that a

series of three Warm-Up Screens are displayed.

The first screen identifies the model number of the analyzer, the

next screen shows the software revision number, while the last

screen counts down the warm-up time from either 10 or 60 seconds.

If an oxygen sensor is installed, its output level is also displayed.

Note: The warm-up time is 10 seconds for analyzers that do

not contain an oxygen sensor, and have their CO channel

set up for manual zero. The warm-up time is 60 seconds for

analyzers that contain an oxygen sensor, and/or have their

CO channel set up for auto zero.

Tip: An O2error will occur when the oxygen sensor’s output

drops to between 80 and 90. Consider replacing the oxygen

sensor when its output level drops below 100.

3. Wait for the analyzer to count down its warm-up period; after

which, either the CO Screen (Model 100), the CO & Draft Screen

(Model 105), or the Fuel Screen (Model 110/120/125) is displayed.

Model 100 Model 105 Model 110/120/125

Measuring CO (Model 100/105/120/125)

1. Turn ON the analyzer and allow it to warm-up.

Important: If the CO channel is set up for auto zero, then

the analyzer must be turned ON in fresh air; otherwise,

incorrect CO readings will occur. If the CO channel is set

up for manual zero, and if the CO reading is higher than

zero when sampling fresh air, then the CO channel must be

manually zeroed per Section “CO Channel Zero” on Page 13.

Instruction 0024-9396 3

Fyrite Pro Quick Reference Guide

2. For the Model 100/105, the CO or CO & Draft Screen should al-

ready be displayed. For the Model 120/125, push the ENTER button

to display the CO & O2Screen.

Model 100 Model 105 Model 120/125

3. Insert the analyzer’s probe into the area to be tested and observe

the detected CO level on the LCD.

Measuring Draft (Model 105/125)

1. Turn ON the analyzer and allow it to warm-up.

2. For the Model 105, the CO & Draft Screen should already be dis-

played. For the Model 125, press ENTER and then press the or 

button as necessary to display this screen.

3. The draft reading should be zero when sampling room air. If not,

press the button once to display the Draft Zero Screen, and then

press ENTER to zero the draft channel to ambient conditions.

4. Insert the analyzer’s probe into the area to be tested and observe

the draft reading on the LCD.

Instruction 0024-9396

Fyrite Pro Quick Reference Guide

Performing a Combustion Test using

the Model 110/120/125

Important: The probe must be at room temperature before

performing the following steps.

1. Perform one of the following:

• Model 110/120 – Before turning ON the analyzer, its probe must

be located in the area containing the burner’s combustion-air

supply. If the burner is using room air, simply place the probe

within the room. In the case of a high-efficiency furnace where

combustion air is drawn in from an outside source, insert the

probe into the combustion-air stream so it can measure its tem-

perature with the burner operating.

• Model 125 – This analyzer has a second thermocouple channel

that can be used to independently monitor the temperature of the

burner’s combustion-air supply. When using this second thermo-

couple channel, insert the thermocouple into the burner’s com-

bustion-air stream, and position the probe to measure the ambi-

ent room temperature. If the second thermocouple channel is not

used, then use the probe’s thermocouple to measure the combus-

tion-air temperature as described above for the Model 110/120.

2. Turn ON the analyzer and allow it to warm-up; after which the

Fuel Screen will be displayed.

3. Use the or button to step through the fuels codes until the

proper fuel is selected. The analyzer defaults to the most recently

selected fuel.

F1 = Natural Gas

F2 = Oil #2

F3 = LPG

F4 = Kerosene

4. Press the ENTER button to select the displayed fuel code and enter

the Run Mode.

Instruction 0024-9396 5

Fyrite Pro Quick Reference Guide

Atmospheric Burner or

Gravity Vented Forced Air Hot Water Tank

5. Insert the probe into the flue-gas stream of the appliance being

tested as described below:

Forced Air Furnace – When testing atmospheric burner or grav-

ity vented, forced air heating equipment with a clamshell or section-

al heat exchanger design, test each of the exhaust ports at the top

of the heat exchanger. The probe should be inserted back into each

of the exhaust ports to obtain a flue gas sample, before any dilution

air is mixed in.

Hot Water Tank – Domestic hot water tanks with the ‘bell’ shaped

draft diverter on top can be accurately tested by inserting the probe

tip directly into the top of the fire tube below the diverter.

80% Efficiency Fan Assist or Power Vented – Combustion test-

ing of fan assist or power vented, furnaces/boilers should be done

through a hole drilled in the vent immediately above the inducer fan.

90% Efficiency Condensing – Condensing furnaces/boilers can be

tested through a hole drilled in the plastic vent pipe (when allowed by

the manufacturer or local authority of jurisdiction) or taken from the

exhaust termination.

Atmospheric or Gravity Vented Boiler – Boilers, which have a

‘bell’ shaped draft diverter directly on top, should be tested directly

below the diverter through a hole drilled in the vent connector.

Instruction 0024-9396

Fyrite Pro Quick Reference Guide

90% Eff. Condensing

Furnace/Boiler

Atmospheric or

Gravity Vented Boiler

80% Eff. Fan Assist

or Power Vented

Furnace/Boiler

Instruction 0024-9396 7

Fyrite Pro Quick Reference Guide

6. After turning ON the analyzer and selecting the appropriate fuel,

press the or button to display the Stack Temperature & Effi-

ciency Screen.

7. Position the probe in the flue-gas stream to obtain the hottest

“Stack” reading. Locating the highest stack temperature is very im-

portant for accurate efficiency calculations.

8. Burner-service procedures can now begin. Use the and buttons

to scroll through the analyzer’s other display screens (refer to Sec-

tion Run Mode Screens on Page 8). The analyzer readings will update

continuously showing changes in burner performance.

Note: When a calcuation cannot be made because of im-

proper data (i.e., oxygen level above 17.9%), four dashes

“- - - -” appear in place of the calculated value on both the

screen and printout.

Tip: Pressing the HOLD button will freeze all readings and

stop the pump, allowing the operator to scroll through the

Run Mode Screens and examine the readings at that point in

time. Press ENTER to restart the pump and resume testing.

9. End a test as follows:

WARNING! Burn Hazard. Do not touch the probe after

removing it from the stack. Allow the probe to cool before

handling (about 5 minutes).

a. Remove probe from the flue-gas stream.

b. Allow the pump to run until all combustion gases are flushed

from the analyzer as indicated by the O2reading returning to

20.9%.

c. Turn OFF the analyzer by pressing the I/O button as described

in Section Turning OFF the Analyzer & CO Purge on Page 18.

Instruction 0024-9396

Fyrite Pro Quick Reference Guide

Run Mode Screens

Figures 2A thru 2E show the order in which the screens are displayed by

pressing the ENTER and  buttons after the analyzer warms-up and

enters its Run Mode.

The top screen in each figure is the one that appears immediately after the

analyzer completes its warm-up cycle.

Figure 2B. Model 105 Run Mode Screens

CO &

Draft

Draft Zero

Figure 2A. Model 100 Run Mode Screen

Instruction 0024-9396 9

Fyrite Pro Quick Reference Guide

Fuel Select:

F1 = Natural Gas

F2 = Oil #2

F3 = LPG

F4 = Kerosene

Ambient /

Combustion Air

Temperature

Stack

Temperature &

Efficiency

CO2&

Excess Air

Figure 2C. Model 110 Run Mode Screens

Instruction 0024-9396

Fyrite Pro Quick Reference Guide

Figure 2D. Model 120 Run Mode Screens

Fuel Select:

F1 = Natural Gas

F2 = Oil #2

F3 = LPG

F4 = Kerosene

CO &

CO Air Free

Ambient /

Combustion Air

Temperature

Stack

Temperature &

Efficiency

CO2&

Excess Air

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