Elster Eclipse AirHeat AH, Operating Instructions Manual

11

AirHeat, V1, Operating Instructions, Edition 09.12

Start Spark

Energize the ignition spark. 

■

  Do not touch the ignition rod, ignition wire, or

transformer while the spark is energized, or you
will get a shock.

Set Pilot Flow 

Open all pilot gas valves, including the handle of the pilot
cock, see Figure 4. The pilot should light. 

Turn the pilot adjusting screw to produce a bushy blue
flame that provides a flame monitoring signal strong
enough to reliably open the gas shut-off valves.

Set Gas Flow

Measure the gas differential pressure as demonstrated in
Figure 5.

With the gas control valve at low fire, open all main gas
valves. The burner should light with a stable, blue low fire
flame that extends evenly down the burner length.

Drive the control valve to high fire and adjust the gas
adjusting valve to produce a pressure drop that
corresponds to the desired high fire rate, as shown in the
datasheet.

When setting high fire, ensure the flame does not impinge
on anything downstream of the burner. To shorten the
flame length for a given gas input, increase the air
pressure drop as described in “Set Air Pressure Drop”
paragraph above.

Check All Settings

Return the burner to low fire and check to ensure the
burner remains lit with a stable flame that extends down
the burner length. Cycle the burner between low and high
fire several times, checking pressure drops and flame
lengths.

Routine Maintenance

Motor Lubrication

Oil the blower motor according to the manufacturer’s
instructions as printed on the motor label.

Ignition Plug/Flame Rod

Ignition plugs and flame rods wear out over long periods
of normal burner operation. Eclipse recommends that the
user keep at least one of each in stock at all times to
prevent nuisance shutdowns. See Figure 6 for
recommended spares.

Figure 6. Ignition, Flame Monitoring, and Pilot Component

WARNING

Scanner

Connection

1/2" N.P.T.

Mount In Place

of Peepsight

3/4"N.P.T.

Scanner Adaptor 109559

For Sizes 440 through 800 AH

Scanner Adaptor 109000

For Sizes through 400 AH

Peepsight

#10509 

3/4" N.P.T.

Flame Rod

#13093-3

Spark

Plug

#13047

Main Gas Inlet

2" N.P.T.

Pilot Cock

#12659

Pilot

Regulator

#15027

Mounting

Bracket

Pilot Gas Inlet

1/4" N.P.T.

Scanner

Connection

1/2" N.P.T.

Mount In Place

of Flame Rod

1/4"N.P.T.