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PV500-2 06/10

Section 2

MAINTENANCE AND SAFETY INSPECTIONS (con't)

Taking the Water Heater Out of Service

Extended shutdown of the appliance and restarting
instructions are as follows:

a. Turn off all power and fuel supplies.

b. Drain and flush tank as previously discussed.

c. Tag power switch(es) indicating that fuel is off

and tank is empty.

d. To restart, refill tank with water and turn fuel

and power switch(es) on. Reset all controls
and conduct start-up of the appliance as
discussed on preceding pages.

PILOT LOCATION & REMOVAL

SPARK IGNITION SYSTEMS

Figure 2-7

Содержание PV500-2

Страница 1: ...iting device 10 Drip leg set at 200 F 11 Gas supply line 5 Upper operating thermostat 12 Handhole cleanout set at 130 F 6 Operating thermostat set at 120 F Not furnished by PVI CAUTION TEMPERATURES HI...

Страница 2: ...wiring is brought to the terminal block in the lower part of the enclosure on the water heater See Figures 2 2 2 3 and 2 4 FOR YOUR SAFETY USE ONLY COPPER WIRE OF PROPER SIZING FOR INCOMING SERVICE D...

Страница 3: ...e combustion products either to existing overhead breeching or to an appropriate outside location 1 The control manufacturer s installation and service manual and start up procedures for the control s...

Страница 4: ...mostat setting the control circuit opens which closes both the pilot and main burner gas valves terminating burner operation 6 The flue damper is closed NOTE The spark ignition system provides additio...

Страница 5: ...dilution with ambient air from the draft diverter occurs in the vent 6 Insert temperature gauge in hole and read vent temperature Temperature should be at least 300 F but less than the room temperatu...

Страница 6: ...d the tank inspected for scale buildup If scale is present it can be loosened with a high pressure stream of water The smaller pieces can be flushed through the drain and the larger pieces removed by...

Страница 7: ...llows a Turn off all power and fuel supplies b Drain and flush tank as previously discussed c Tag power switch es indicating that fuel is off and tank is empty d To restart refill tank with water and...