Delta PG PLUS-25 Operations Instructions download pdf (Page 59)

53

Start-Up Procedures

Venting system must be sealed gas-tight

to prevent flue gas spillage and potential

carbon monoxide emissions, which will

result in severe personal injury or death.



Check Gas Piping

1. Check around the unit for gas odor fol-

lowing the procedure outlined in this

manual on Page 49.

If any gas leaks are found or suspected,

shut the unit down immediately. Use a

gas detection device or bubble test to

locate the source of the gas leak and

repair at once. Do not operate the unit

until the leak is corrected. Failure to

comply with this procedure could result

in severe personal injury, death or sub-

stantial property damage.

 Verify Flame Pattern and Combustion

Check the flame pattern through the

inspection port of the burner. The

flame should be blue and stable. The

flame should be the length of the burn-

er head openings.

Remove the test plug located on the flue

hood and insert a combustion test probe.

Test for CO2 or O2 and for CO. The

combustion reading should be within

the range listed in Table 5. The CO

level should not exceed 100 ppm when

combustion is correct.

To adjust the combustion level open or

close the air shutter by a 1/2 setting.

- Closing the air shutter will decrease

the O2 level and increase the CO2

level.

- Opening the air shutter will increase

the O2 level and decrease the CO2

level.

A combustion test must be performed

after any adjustments are made. Allow

the unit to operate for approximately 10

minutes after adjustment before measur-

ing any combustion levels. Failure to

comply with these pro c e d u r es could

result in severe personal injury, death or

substantial property damage.

Replace the test port plug when the com-

bustion test is completed to prevent flue

gas spillage into the building. Failure to

comply with this procedure could result

in severe personal injury, death or sub-

stantial property damage.



Measure Input - Natural Gas Only

1. Operate the unit for approximately 10

minutes.

2. Turn off all gas appliances within the

building.

3. At the gas meter, record the time

required to use one cubic foot of gas.

4. Calculate gas input using the following

equation:

3600 x 1000 / number of second record-

ed for one cubic of gas = BTU/H.

5. The BTU/H calculated should approxi-

mate the input rating listed on the unit.

WARNING

WARNING

WARNING

WARNING

Natural Gas Propane

O2 Min. 3.00% 3.00%

O2 Max. 5.00% 5.00%

CO2 Min 9.00% 10.50%

CO2 Max 10.00% 12.00%

Table 5: Recommended Combustion Levels

1 2 ... 54 55 56 57 58 59 60 61 62 63 64 ... 75 76

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