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14

Vermont Castings Majestic Products NV360/580 Series

20003565

Vent Safety Switch

This fireplace incorporates the use of a Vent Safety
Shut-off Switch. The sensor and wiring are factory
installed and should not be removed or altered during
installation.

In the event of total flue blockage the system will detect
the increased heat buildup and will automatically shut
down the main burner assembly.

The sensor is located above the firebox behind the top
louvre assembly. It is accessible by removing the top
louvre assembly.

CAUTION:  The firebox, Vent Safety Switch sensor
and surrounding panels become very hot during
normal operation. Allow time for the components to
cool before carrying out any service or inspection.

If the sensor is activated and shuts off the burner
assembly, the following procedure should be followed:

Observe that the pilot flame is still “ON”. If the pilot
flame has gone out the reason for the fireplace shut
down is not the vent safety switch.

Turn the pilot flame “OFF” and close all controls.
Allow the fireplace to cool.

Check the flue and venting components for blockage
or restrictions.

Remove the front louvre assembly.

Locate the sensor.

Reset the sensor by pressing the reset pin between
the two wire terminals. (Fig. 18)

CAUTION: The components may still be hot.

Light the fireplace and check for downdrafts.

Operate the fireplace in the normal manner. If the
burner assembly shuts down again after a period of
operation, DO NOT ATTEMPT TO RESET THE
SENSOR AGAIN. 
Turn off the fireplace and contact
your service technician.

Electrical Connection

The sensor is wired in series between the wall mounted
“ON/OFF” switch and the Electronic Ignition Module
(Fig. 19) or the thermopile and the gas valve (Fig. 20)

Sensor

Wire
Terminal

Reset Pin

FP1160

Fig. 18  Vent Safety Switch.

Wire
Terminal

24 VAC HOT

24 VAC RTN

"ON/OFF"
SWITCH

NOVA SIT 822 VALVE

HONEYWELL S8600 B IGNITION MODULE

120 VAC RTN

40VA 

TRANSFORMER

120 VAC HOT

BLACK

BLACK

BLACK

BLACK

BLACK

BLACK

BLACK

WHITE

WHITE

WHITE

WHITE

WHITE

WHITE

WHITE

WHITE

BLACK

PILOT

HI

LO

E

A

PILO

T

1  5

3  4

GREEN

MV     MVPV     PV

GND
(BURNER)

24V
GND

24V

SENSE

SPARK

FP670

Fig. 19  Vent Safety Switch wiring, EN/EP units.

TH

TP

TH
TP

Gas
Valve

Thermopile

“ON/OFF”
Switch

Vent
Safety
Switch

FP1161

Fig. 20  RN/RP units using a remote “ON/OFF” switch.

Summary of Contents for NV360

Page 1: ...e gas suppliers instructions If you cannot reach your gas supplier call the fire department WARNING IF THE INFORMATION IN THIS MANUAL IS NOT FOLLOWED EXACTLY A FIRE OR EXPLOSION MAY RESULT CAUSING PRO...

Page 2: ...5 Hearth 5 Framing Finishing 6 Final Finishing 6 Gas Specifications 6 Gas Inlet Manifold Pressures 6 High Elevations 6 Gas Line Installation 6 Remote Switch Installation 7 Alternate Switch Location 7...

Page 3: ...flammable vapor and liquids This fireplace should not be used as a drying rack for clothing nor should Christmas stocking or decorations be hung in the area of it 9 Under no circumstances should any s...

Page 4: ...g dimensions Ref NV360 NV580 A 41 1046mm 47 1194mm B 37 953mm 41 1048mm C 36 914mm 42 1067mm D 24 622mm 28 724mm E 7 179mm 7 179mm F 6 152mm 6 152mm G 1 32mm 1 32mm H 19 489mm 23 591mm I 5 140mm 5 140...

Page 5: ...applies to the distance between the mantel leg if fitted and the fireplace For the correct mounting height and widths refer to Figures 2a 2b and the Mantel Chart below The distances and reference poi...

Page 6: ...jurisdiction In Canada please consult provincial and or local authorities having jurisdiction for installations at elevations above 4 500 feet 1 370m NV360 NV580 CERTIFIED TO ANSI Z21 50a 1999 CSA 2...

Page 7: ...sconnect this or any other gas appliance control from the gas line when pressure testing The gas control is equipped with a captured screw type pressure test point therefore it is not necessary to pro...

Page 8: ...from the bottom of the fire place Maximum vertical height 40 feet 12m Minimum height with two elbows 18 feet 4 6m Elbow requirements allow a maximum of two 90 elbows or four 45 elbows per installatio...

Page 9: ...12m in height Up to an 8 ft horizontal vent run can be installed within the vent system using a maximum of two 2 90 degree elbows or four 4 45 degree elbows B Vertical installations up to 40 feet 12m...

Page 10: ...ed at the bottom edge and swings down Operating Instructions Glass Information Clamps Glass Frame Fireplace Front Glass Panel Glass Panel Pull Clamp Hook G584 501 Push Clamp Handle Fig 10 Glass panel...

Page 11: ...Log Front Right Log Rear Log Front Left Log Top Right Log Top Left LG119 Ember Material Lava Rock Top logs must be placed properly onto notches 4 Place front left log on top of burner left side Align...

Page 12: ...n gas valve is off Remove glass frame See Window Frame Assembly Removal Section Using a flashlight check the area above the baffle in the combustion dome Clean if necessary Flame Characteristics It is...

Page 13: ...instruc tions exactly B BEFORE LIGHTING smell all around the heater area for gas Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor WHAT TO DO IF YOU...

Page 14: ...Check the flue and venting components for blockage or restrictions Remove the front louvre assembly Locate the sensor Reset the sensor by pressing the reset pin between the two wire terminals Fig 18...

Page 15: ...Ignitor Supply Line Hooked Up Shut off Valve Open Pilot Stays Lit For Air In The Lines Thermopile Needs A Min 325mv Adjust Pilot Flame Height All Wiring Connections Replace Thermopile Thermocouple Ne...

Page 16: ...s Jumper wire accross terminals at wall switch if burner comes on replace defective wall switch If okay jumper wires across wall switch wires at valve if burner comes on wires are faulty or connection...

Page 17: ...tter retaining screw then air shutter Fig 24 Fuel conversion must be completed by qualified personnel LO HI LO HI Hi Lo Knob Cap Lift Open Remove Center Screw CO100 Fig 21 Removing center screw from H...

Page 18: ...rn unit OFF NOTE Be sure unit is cool 2 Remove glass 3 Remove logs Remove old hearth panels and discard 4 Remove two 2 screws securing grate to hearth pan Fig 28 5 Set left and right panels on hearth...

Page 19: ...thermopile millivolt gas valve Most of these components may require only an occa sional checkup and cleaning and some may require adjustment If repair is necessary it should be performed by a qualifi...

Page 20: ...e right to make changes in design materials specifications prices and discontinue colors and products at any time without notice NV360 580 Ref Description NV360 NV580 1 Log Set 20002397 20002071 1a Lo...

Page 21: ...ve Honeywell VS8421 Nat 10001782 10001782 23b Valve Honeywell VS8421 LP 10001759 10001759 24a Valve SIT 820 Nat 52677 52677 24b Valve SIT 820 LP 52678 52678 25a Pilot Assembly Nat 10002264 10002264 25...

Page 22: ...x 5 Be sure fan motor does not touch nearby metal Method A Route the 6 1 8m lead fitted to the unit to a con veniently located wall socket Method B If the EB1 receptacle box Pt ZA1200 was cor rectly c...

Page 23: ...ig 34 Rear ceramic panel placement Decorative Frame Trims A selection of decorative frame trim kits are available for mounting around the outside of the appliance to enhance its visual effect on the r...

Page 24: ...hop If upon inspection the damage is found to be the fault of the manufacturer repairs will be authorized at no charge to the customer parts and or labor Any part and or component replaced under the p...

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