Superior DRT40ST40DMN Installation And Operation Instructions Manual page 43

Innovative Hearth Products
DRT40 Multi View Series Direct Vent Gas Fireplace
d. Locate the two (2) latches at the top of the
control compartment. To disengage the two
latches from the bottom vee-flange of the glass
enclosure panel, reach for the handles located
towards the back of the latches and pull the
handles down toward the front of the unit. See
Figure 63 on page 36.
e. Swing the bottom of the door out and raise
it slightly to lift the top flange of the door frame
away from the appliance.
Step 2. Carefully remove the log set. Exercise
care as not to break the log set.
Step 3. Referring to Figure 67, remove the
burner.
AIR SHUTTER
ADJUSTMENT LEVER
VENTURI TUBE ARM
FIREBOX SUBFLOOR
FRONT OF FIREPLACE
Figure 67
Millivolt Appliances
Step 4. Refer to Figure 68 and the instruc-
tions provided with the kit. Using a Torx T20,
remove and discard the three pressure regulator
mounting screws. Remove the pressure regu-
lator, spring, poppet, diaphragm and bushing.
Discard all removed components. Ensure
the rubber gasket installed on the back of the
replacement pressure regulator is properly
positioned and install the new pressure regula-
tor using the new screws supplied with the kit.
Tighten screws to 25 In. lb. torque.
Pressure
Regulator
Figure 68
Step 5. 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.
PAN BURNER
Step 6. Refer to Figure 69 and remove the
pilot hood assembly to access the hexed pilot
orifice. Remove and replace the orifice with the
one provided with the kit.
Figure 69
Electronic Appliances
Step 7. Honeywell Electronic Valves - See
Figure 70 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 71 and replace the pilot orifice as
follows: Remove the igniter assembly retainer
clip, and carefully remove the igniter assembly.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Remove
These
Components
Pilot
Orifice
Installation and Operation Instructions
900299-00, 08/2015
Inlet Pressure Test Port
Manifold
Pressure
Test Port
Slotted
Cap
Spring
Adjusting
Screw
Exercise extreme care to prevent damage to
or breakage of the igniter assembly.
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 detailed here.
When reinstalling the igniter assembly, use
extreme care to prevent damage and break-
age. Do not apply any leverage to the igniter
assembly while restoring the retainer clip to
its original position.
Pilot
Orifice
Retaining
Clip
Flare Nut
Note: If the igniter is damaged, a replacement
kit is available, order Catalog No. 87L54.
All Models
Step 8. (Refer to Figure 67 )
A. Remove the orifice from the manifold and
replace it with the one provided in the kit.
The following table shows the orifice sizes
for natural and propane models. Figure 72
illustrates the orifice. Always check and verify
correct orifice size.
B. Install the burner as shown in Figure 73.
Figure 70
Pilot
Assembly
Igniter
Assembly
Figure 71
43