4.After 20 to 30 minutes of operation or when water in the tank is above 120°F, insert CO (carbon monoxide) tester in flue damper opening under the draft diverter (125 gallon models) or in the flue collector opening (250 gallon models). CO reading must be less than

.02% (or 200 ppm).

5.Insert CO2 (carbon dioxide) tester in the flue damper opening under the draft diverter (125 gallon models) or in the flue collector opening (250 gallon models) and take reading. CO2 should be 6 to 8%.

NOTE: Monitoring CO and CO2 readings in vent after the draft diverter will give erroneous readings. These measurements must be taken as flue gases exit the heater flue collector under the draft diverter as dilution with ambient air from the draft diverter occurs in the vent.

6.Insert temperature gauge in ¼" hole and read vent temperature. Temperature should be at least 300°F but less than the room temperature plus 400°F when the water temperature is approximately 130°F.

7.Connect micro-amp meter as shown in Figure 2-6 and check micro-amps. A minimum of two micro-amps is required for proper operation.

8.Record the following information for future use:

A.Inlet gas pressure ________________"W.C.

B.Gas pressure, manifold (step 2) _____ "W.C.

C.Vent draft (step 3) ________________"W.C. (should be minimum of 1 in. W.C.)

D.CO reading (step 4) ______% (less than .02%)

E.CO2 reading (step 5) __________% (6-8%)

F.Vent gas temperature (step 6) Gross__________________F. Less Ambient____________°F. Net____________________°F.

G.Micro-amps reading (step 7)______________.

COMBINATION GAS VALVE

Figure 2-5

MICRO-AMP METER HOOK-UP

Figure 2-6

PV500-2 06/10

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Section 2

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Image 5
PVI Industries PV500-2 manual Combination GAS Valve MICRO-AMP Meter HOOK-UP

PV500-2 specifications

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