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Version 1.0b 

30 

 

TROUBLE-SHOOTING GUIDE 

The 820 Nova millivolt control valve is available in three different configurations.  They are the (1) 

Millvolt Plus vented

, or the (2) 

Millivolt Plus vent-free

, or the (3) 

Millivolt

 systems.   

 
The 

Millivolt Plus vented

 system is for use in direct vent appliances that require fast shut-off in the 

even of a pilot flame failure.  A thermocouple powers the safety magnet and a thermopile powers the 
main control valve. 
 
The 

Millivolt Plus vent-free

 system is used in conjunction with an ODS pilot.  As with the vented 

Millivolt Plus control valve, this valve uses a thermocouple to power the safety magnet and uses a 
thermopile to power the main control valve. 
 
The 

Millivolt

 system is used with gravity vented appliances where rapid shut-off is not necessary in the 

event of a pilot flame outage.  It uses a single thermopile to power both the safety magnet circuit and 
the main control valve.  A spill switch could be used in the safety magnet circuit of this system. 
 
All NOVA control valves are fitted with a safety interlock device that prevents unsafe ignition of the 
pilot burner after the ON/PILOT/OFF control knob is turned to the OFF position.  All three of these 
control valves can accommodate a wall switch, or a wall thermostat, or a remote control unit that can be 
used to cycle the main control valve on and off.  Following is the electrical data for the 820 Nova 
millivolt gas control valve models: 

 

VALVE TYPE 

MAIN CONTROL VALVE 

SAFETY MAGNET 

Minimum Voltage 

145 mV 

Hold-in current 

Less than 285mA 

Drop-out current 

Greater than 125mA 

NOVA mV Plus  
Vented 

Coil Resistance 

2.25

±0.5

 

Coil resistance 

0.018

±0.003

 

Minimum Voltage 

145 mV 

Hold-in current 

Less than 200mA 

Drop-out current 

Greater than 80mA 

NOVA mV Plus 
Un-vented 

Coil Resistance 

2.25

±0.5

 

Coil resistance 

0.018

±0.003

 

Minimum Voltage 

145 mV 

Hold-in current 

Less than 12mA 

Drop-out current 

Greater than 4mA 

NOVA Millivolt 
Vented 

Coil Resistance 

2.25

±0.5

 

Coil resistance 

10.2

±0.05

 

 

All millivolt control valve circuits are easily affected by electrical resistance.  If enough resistance is 
present in the appliances circuit, two things can occur.  (A) Either the main control valve will work 
intermittently and be unpredictable or (B) the main control valve will not work at all.  There are several 
areas where excess resistance can be found in the appliances circuit.  In new installations, the 
thermostat itself can be found to be the problem.  Always use a thermostat rated for millivolt control as 
they have been designed to minimize circuit resistance.  The other area to check is the wiring itself.  
Wire gage plays an important part in wire resistance.  The smaller the diameter of the wire and the 
greater the length of the wire, the larger the circuit resistance will be.  The table above provides 
valuable information to select the proper wire that is used to connect to the main control valve.  This 
table refers to the total length of wire from the control valve out to the thermostat and back to the 
control valve.  All electrical connections must be tight, clean, and free from corrosion.  Corrosion can 
build up over time due to humidity problems so inspect wire connections on an annual basis. 

 

WIRE SIZE 

MAXIMUM LENGTH 

WIRE SIZE 

MAXIMUM LENGTH 

12 Gauge 

150 feet 

18 Gauge 

40 feet 

14 Gauge 

100 feet 

20 Gauge 

25 feet 

16 Gauge 

64 feet 

22 Gauge 

16 feet 

 
 

Содержание INGLS 24-N

Страница 1: ...contained in this manual are not followed exactly a fire or explosion may result causing property damage personal injury or loss of life IF YOU SMELL GAS FOR YOUR SAFETY Do not light any appliance Do...

Страница 2: ...LLATION GAS LOGS 17 OPERATING INSTRUCTIONS 21 LIGHTING INSTRUCTIONS 21 TO TURN OFF GAS TO INGLENOOK 21 FIRST FIRE 21 MAINTENANCE INSTRUCTIONS 22 SPECIFIC TASKS 22 CLEANING BURNERS AND CONTROLS 22 REPL...

Страница 3: ...Version 1 0b 3 TABLE OF CONTENTS NOVA mV SET UP GUIDE 31 SAFETY LABEL 32 REPLACEMENT PARTS INGLS 24N or INGLS 24P 33 LIMITED 10 YEAR WARRANTY 34...

Страница 4: ...vironment while obtaining maximum value from the purchase Each employee at Country Flame pledges to ensure every one of our customers has our continuing commitment of product support Country Flame ded...

Страница 5: ...high traffic areas and away from furniture and draperies Children and adults should be alerted to the hazards of high surface temperatures Maintain safe clearances stay away to avoid burns or clothing...

Страница 6: ...that the combustion air vent has no blockage allowing free airflow into the combustion chamber NEW INSTALLATION For first time Inglenook fireplace installations complete ALL installation instructions...

Страница 7: ...obtain new parts before attempting wood burning operations in the Inglenook fireplace again FIGURE 1 INGLENOOK SOLID FUEL PARTS REMOVAL TABLE 1 should be used as a checklist to ensure all solid wood...

Страница 8: ...by suitable gas pipe hangars or straps Install drip leg traps where condensate might accumulate in the gas supply line Verify local code requirements for sediment traps Traps collect moisture and sedi...

Страница 9: ...by a certified professional For lighting instructions refer to the section on first fire in this manual or on the units control panel ON OFF PILOT H I LO PILOT ADJ IN OUT FIGURE 3 SIT 820 mV NOVA GAS...

Страница 10: ...ont Orifice Spud Rear Spud Orifice 1 IN 6516 55 DMS LP Rear Orifice Spud Conversion Label 1 IN 6522 Conversion NG to LP Instructions 1 IN 6524 Conversion Kit Instructions TABLE 2b IN 6503 CONVERSION K...

Страница 11: ...ING inches 0 1 8 PILOT ORIFICE DMS 51 35 INPUT RATING Btu hr 610 1370 Meters 59 000 58 700 ORIFICE SIZE DMS 610 1370 Meters 32 44 49 56 MANIFOLD PRESSURE Inches of Water Column 3 5 10 0 MANIFOLD PRESS...

Страница 12: ...bly includes the gas valve and gas line with front and rear gas orifices the gas valve frame the base plate and the pilot valve assembly This assembly should be placed through the grate opening and sh...

Страница 13: ...ttom of the Inglenook Fireplace Note that the gas tube of the rear burner must go through the slot in the right side of the floor and sit on top of the rear burner orifice mounted to the lower gas lin...

Страница 14: ...front burner tray will sit flat into its opening FIGURE 10 shows the front burner tray sitting in the Inglenook Fireplace The front burner plate is blue in color and the rear burner plate is red in c...

Страница 15: ...a look at the proper installation FIGURE 12 LOG RETAINER STEP 4 COMPLETE STEP 5 The control panel is installed in STEP 5 The control panel face plate covers the ash pan housing opening FIGURE 13 show...

Страница 16: ...h effect to the log system when gas is burnt Embers also help to break up the gas molecules as they pass through the front and rear burner plates and into the burn chamber where these gas molecules co...

Страница 17: ...orrectly will cause the Inglenook gas log system to burn inefficiently Inefficient gas burns can create a significant amount of soot WARNING Do not reconfigure the logs in any different formation othe...

Страница 18: ...Version 1 0b 18 FIGURE 17 THIRD LOG INSTALLATION FIGURE 18 FOURTH LOG INSTALLATION...

Страница 19: ...Version 1 0b 19 FIGURE 19 FIFTH LOG INSTALLATION FIGURE 20 SIXTH LOG INSTALLATION...

Страница 20: ...the next page The entire system should be carefully monitored for the first several fires until the homeowner is convinced that everything is operating properly If there are any signs that the Ingleno...

Страница 21: ...r LIGHTING INSTRUCTIONS 1 STOP Read the safety information above this section 8 Push in and turn the ON PILOT OFF control knob counterclockwise to ON 2 3 4 5 6 7 Turn off all electrical power to the I...

Страница 22: ...pect and clean pilot assembly and inspect and clean surrounding burner area REPLACE OLD EMBERS FREQUENCY Once during annual inspection PERFORMED BY Qualified service technician TASK PERFORMED Replace...

Страница 23: ...lation GENERAL CLEANING REQUIREMENTS Routinely perform general cleaning of the Inglenook to remove all dust lint or other debris that has built up during non use or in the off season Clean the two bur...

Страница 24: ...Item C comes preinstalled into Item E Inspect the wiring of the pilot assembly before installation to ensure all wires are properly connected to the gas valve The gas control valve Item D must be plu...

Страница 25: ...ppliance is checked as specified in the owner instructions supplied with the kit STEP 1 Turn the control knob to the OFF position and turn off the gas supply to the valve STEP 2 Remove control knob ex...

Страница 26: ...lot flame diffuser FIGURE 25 Item B by pulling up on it The retainer clip FIGURE 26 Item A should release the pilot flame diffuser with a light pulling motion b Remove the pilot gas orifice FIGURE 10...

Страница 27: ...k gas log control valve is pre wired to accept a millivolt wall thermostat This remote thermostat can be used to turn the Inglenook gas log system on and off automatically If additional airflow is des...

Страница 28: ...ve hand tight plus turn with a wrench Defective thermocouple mV Plus systems Verify that thermocouple is not kinked or damaged Check open circuit voltage of thermocouple Voltage should be between 18mV...

Страница 29: ...me procedures but substitute the word wall switch where the word thermostat appears Excessive wire resistance Make certain that all mV connections are made using wire of the proper AWG size Refer to t...

Страница 30: ...mA NOVA mV Plus Vented Coil Resistance 2 25 0 5 Coil resistance 0 018 0 003 Minimum Voltage 145 mV Hold in current Less than 200mA Drop out current Greater than 80mA NOVA mV Plus Un vented Coil Resist...

Страница 31: ...le to engage the safety magnet Remember the Millivolt Plus system uses a thermocouple to power the safety magnet and the Millivot system utilize power from a single thermopile to engage the safety mag...

Страница 32: ...Version 1 0b 32 SAFETY LABEL FIGURE 29 CONTROL PANEL OVERLAY...

Страница 33: ...gure 30 Item 3 FRONT BURNER ASSEMBLY IN 6506 Figure 30 Item 4 GAS VALVE PLATE ASSEMBLY IN 6528 Figure 30 Item 5 GRATE ASSEMBLY IN 6520 Figure 30 Item 6 CONTROL PANEL FACEPLATE IN 6527 Figure 15 21 Ite...

Страница 34: ...ts or accessories not including glass panels broken during misuse or careless handling Country Flame Technologies shall not be responsible for any labor transportation or other costs Furthermore Count...

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