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#LCK-SP41L-D

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HUSSONG MFG. CO., INC.

 KOZY HEAT FIREPLACES

EN

F.  Test Inlet Pressure

IMPORTANT: For a proper pressure reading, apply the gas supply 

pressure tests with all other gas appliances on or at full capacity in the 

household.

Step 1:  Loosen the inlet (IN) pressure tap screw (counterclockwise) on 

the gas valve. See (A) in 

FIGURE 6.

Step 2:  Attach a manometer to the inlet pressure tap with a 1/4” (6mm) 

ID hose. 

Step 3:  Light the pilot and burner. Verify manometer reading is 

between the recommended minimum and maximum pressure 

settings. See 

TABLE 3

.

Step 4:  Turn off pilot and burner. 
Step 5:  Disconnect hose and tighten the inlet pressure tap screw 

(clockwise). The screw should be snug; do not over tighten.

Step 6:  Relight the pilot and burner.
Step 7:  Reattach the manometer to the inlet pressure tap to verify tap 

is completely sealed. Manometer should read no pressure.

Table 3, Inlet Gas Supply Pressures

Fuel

Minimum

Maximum

Propane

12” WC (2.99 kPa)

13” (3.24 kPa)

G.  Test Manifold Pressures

Step 1:  Loosen the manifold (OUT) pressure tap screw 

(counterclockwise) on the gas valve. See (B) in 

FIGURE 6.

Step 2:  Attach a manometer to the outlet pressure tap with a 1/4” (6mm) 

ID hose. 

Step 3:  Light the pilot and burner. Verify manometer reading is 

between the recommended low and high pressure settings. 

See 

TABLE 4

.

Step 4:  Turn off pilot and burner.
Step 5:  Disconnect hose and tighten the outlet pressure tap screw 

(clockwise). The screw should be snug; do not over tighten.

Step 6:  Relight the pilot and burner. 
Step 7:  Reattach the manometer to the outlet pressure tap to verify tap 

is completely sealed. Manometer should read no pressure. 

Table 4, Manifold Gas Supply Pressures

Fuel

Low

High

Propane

2.7” WC (0.67 kPa)

10” WC (2.49 kPa)

H.  Verify Operation

Step 1:  Light the pilot. Visually check the pilot flame to verify flame 

envelops the top of the flame sensor and extends far enough 

onto the burner for proper ignition. See 

FIGURE 7.

Step 2:  To adjust the pilot flame, turn the pilot adjustment screw on the 

gas valve clockwise to decrease flame, and counterclockwise to 

increase flame.

Step 3:  Turn the appliance off. 
Step 4:  Affix the gas type sticker on or near the gas valve.
Step 5:  Reinstall the glass frame assembly and safety barrier.
Step 6:  Light the pilot and burner. Visually check the main burner flame 

appearance (

FIGURE 8

for proper ignition and operation of 

the fireplace. Refer to the installation manual for complete 

adjustment procedures. 

Step 7:  Complete and affix the ‘Gas Conversion’ labels as close to the 

rating plate as possible.

Step 8:  Verify the input rating of the converted appliance. See 

TABLE 5

.

Table 5, Input Ratings

Fuel

Minimum Input

Maximum Input

Propane

14,000 Btu/h (4.1 kW)

28,000 Btu/h (8.2 kW)

Inlet pressure tap

Manifold pressure tap

Ideal Flame Appearance

Lazy, yellow flames - no adjustment necessary

Burner Ports

Correct pilot flame appearance

FIGURE 6, 

Pressure Check Taps

FIGURE 7, 

Burner Ports Location and Correct Pilot Flame Appearance

FIGURE 8, 

Ideal Burner Flame Appearance

Summary of Contents for LCK-SP41L-D

Page 1: ...HTHE APPLIANCE This gas conversion kit installation instructions must be used in conjunction with the installation and operation manual provided with the appliance Please read the appliance owner s ma...

Page 2: ......

Page 3: ...ack log plates Step 5 Remove the burner heat shield Refer to the installation manual for more information B Replace Burner Orifice Step 1 Remove the existing burner orifice See FIGURE 1 Step 2 Replace...

Page 4: ...he screw securing the venturi cap and adjust to the correct setting See FIGURE 5 and TABLE 2 Regardless of venturi orientation closing the air shutter will achieve a desired yellow flame but may produ...

Page 5: ...rew clockwise The screw should be snug do not over tighten Step 6 Relight the pilot and burner Step 7 Reattach the manometer to the outlet pressure tap to verify tap is completely sealed Manometer sho...

Page 6: ...d information consulter le manuel d installation B Remplacement l orifice du br leur tape 1 Retirez l orifice du br leur existant Voir FIGURE 1 tape 2 Remplacez le par le nouvel orifice de br leur fou...

Page 7: ...obturateur d air du venturi et ajustez le au r glage appropri Voir FIGURE 5 et TABLEAU 2 R duire l ouverture de l obturateur d air du venturi avant ou arri re donnera la couleur de flamme jaune d sir...

Page 8: ...du raccord de test de pression de sortie sens horaire La vis doit tre viss e juste assez ne la serrez pas trop tape 6 Rallumez la veilleuse et le br leur tape 7 Rebranchez le manom tre au raccord de t...

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