Lennox EDV4540CPM Installation Instructions

37
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Burner Assembly
Gas Valve
Assembly
Orifice
Figure 63
Millivolt Appliances
Step 4. SIT Systems - Refer to Figure 64 and
the instructions provided with the kit. Using a
Torx T20, remove and discard the three pressure
regulator mounting screws. Remove the pres-
sure regulator, 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
Remove
These
Components
Pilot
Orifice
Figure 66
Figure 65
Spring
Adjusting
Screw
Slotted
Cap
PSI
OFF
I
ON
CONTROL
IGNITE
Manifold
Pressure
Test Port
Inlet Pressure Test Port
Electronic Appliances
Step 7. Honeywell Electronic Valves - See
Figure 66 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 col-
umn (0.87 kPa) for natural gas, and 10.0 inches
water column (2.49 kPa) for propane gas.
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.
Step 6. Refer to Figure 65 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 64

Lennox EDV4540CPM Specifications

General

Brand	Lennox
Model	EDV4540CPM
Category	Indoor Fireplace
Language	English