Superior DT-400CMN All Models, Model No, Natural Propane, Electronic Appliances Honeywell Systems

b. Attach manometer to the manifold side pressure test fitting and verify manifold pres- sure reads 3.5 inches water column (0.87 kPa) for natural gas, and 10.0 inches water column (2.49 kPa) for propane gas.

c. Convert the pilot orifice as follows (refer to Figures 62, 63 and 64 ):

Note - Use extra care not to engage the orifice strip with the 7/16" open end wrench (contact- ing the orifice strip could cause strip distortion rendering the pilot inoperative). Also avoid wrench contact to any of the other pilot parts.

CONTROL OFF ON

IGNITE

Manifold

Pressure

Test Port

Slotted Cap

Inlet Pressure Test Port

I

IS

P

Spring

Adjusting

Screw

All Models

Step 7. Remove the orifice from the mani- fold and replace it with the one provided with the kit. See the following table for orifice sizes for natural and propane models. Figure 67 illustrates the orifice.

Orifice size

Model No.

Natural Propane

Use a 7/16" open end wrench and turn the pilot hex fitting counter-clockwise 1/4 turn. (refer to Figure 62 ).

Note - The orifice strip tab may be randomly located on any side of the hex fitting.

d.Push the orifice strip tab all the way against the hex fitting to align the appropriate gas type orifice (refer to Figures 63 and 64). The type of gas for which the pilot is set, is, the gas type shown on the tab.

e.Retighten, clockwise, the pilot hex fitting until the pilot hood aligns with the thermo- couple and thermopile as indicated by the arrows shown in Figure 62.

Step 6. Electronic Appliances -

Honeywell Systems

See Figure 65 and the instructions provided with the kit. Remove the slotted cap screw, o- ring, pressure-regulating adjusting screw and spring. Retain all parts for possible later use. Install new components from the kit. Black cap and red spring for propane gas units. Silver cap and stainless steel spring for natural gas units. Before installing the cap, attach manometer to the manifold side pressure test fitting and adjust screw until pressure reads 3.5 inches water column (0.87 kPa) for natural gas, and 10.0 inches water column (2.49 kPa) for propane gas.

See Figure 66 and replace the pilot orifice as follows: Remove the ignitor assembly retainer clip, and carefully remove the ignitor assembly.

Exercise extreme care to prevent damage to or breakage of the ignitor assembly.

Figure 65

Remove the screw securing the pilot assembly to its mounting bracket. Back off the flare nut at the end of the pilot gas line to free the pilot assembly from the gas line.

Remove the pilot orifice and replace it with the one provided with the conversion kit. Reinstall the pilot assembly by reversing the steps de- tailed here.

When reinstalling the ignitor assembly, use extreme care to prevent damage and break- age. Do not apply any leverage to the ignitor assembly while restoring the retainer clip to its original position.

Pilot

PilotAssembly

Orifice

Ignitor

Assembly

	Retaining
Flare Nut	Clip

Note: If the ignitor is damaged, a replacement kit is available - order Catalog Number 87L54.

Figure 66

DT-400	#45	0.048
DR-400		inch

Figure 67

Step 8. Reassemble all removed components by reversing the procedures outlined in the preceding steps. Use pipe joint compound or Teflon tape on all pipe fittings before installing (ensure propane resistant compounds are used in propane applications, do not use pipe joint compounds on flare fittings).

Step 9. Attach the conversion label provided in the conversion kit to the rating plate on the appliance.

Step 10. Turn on gas supply and test for gas leaks.

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

The manufacturer reserves the right to make changes at any time, without notice, in design, materials, specifications, prices and also to discontinue colors, styles and products. Consult your local distributor for fireplace code information.

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