Monessen Hearth CSVF20SNV, CSVF30SPV, CSVF20SPV, CSVF30SNV User Manual

ON

OFF

UNVENTED GAS

CAST IRON STOVE

INSTALLATION AND OPERATING

INSTRUCTIONS

MODELS:

CSVF20SNV CSVF30SNV
CSVF20SPV CSVF30SPV

Natural Gas or

Propane/LPG

Milli-Volt Control

WARNINGS

WARNINGS

This appliance may be installed in
an aftermarket, permanently located,
manufactured (mobile) home, where
not prohibited by local codes.

This appli ance is onl y for use
with the type of gas indicated on
the rating plate. This appliance is
not convertible for use with other
gases.

This is an unvented gas-fired heater.
It uses air (oxygen) from the room
in which it is installed. Provisions for
adequate combustion and ventilation
air must be provided. Refer to page 8.

If the information in this manual is not followed
exactly, a fire or explosion may result causing
property damage, personal injury or loss of life.

– Do not store or use gasoline or other flammable

vapors and liquids in the vicinity of this or any
other appliance.

– WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

• Do not touch any electrical switch; do not use
any phone in your building.

• Immediately call your gas supplier from a
neighbor's phone. Follow the gas supplier's
instructions.

• If you cannot reach your gas supplier, call the
fire department.

– Installation and service must be performed by

a qualified installer, service agency or the gas
supplier.

READ AND SAVE THESE INSTRUCTIONS

CONTENTS

Important Safety Information ..........................3

Product Features .............................................. 5

Dimensions ....................................................... 6

Getting Started .................................................. 7

Product Specifications..................................... 8

Ignition Controls ............................................ 8

Pilot ............................................................... 8

Thermal Generator ....................................... 8

General Installation Information ..................... 9

Codes ........................................................... 9

Adequate Combustion and Ventilation Air .... 9

Clearances / Height Requirements ............... 11

Removing Unit from Crate ............................. 13

Connecting the Gas ........................................ 14

Checking Gas Pressure ................................. 15

Connecting Remote Receiver ....................... 15

Log Placement ................................................ 19

Installing Logs on Grate .............................. 19

Rock Wool Installation ................................... 20

Flame Appearance .......................................... 20

Checking Pilot Flame .................................. 20

Checking the Burner Flame ........................ 21

Operating Instructions ................................... 21

For Your Safety Read Before Lighting ........ 22

Milli-Volt Control Lighting Instructions ......... 23

To Turn Off Gas to Heater ........................... 23

Match Lighting Instructions ......................... 24

Cleaning and Servicing .................................. 24

Replacement Parts List .................................. 25

Logs ............................................................ 25

Burner Assembly ......................................... 26

Troubleshooting ............................................. 28

Warranty .......................................... Back Cover

Electrical Wiring ............................................. 16

Connecting Optional Wall Switch or

Thermostat .................................................. 16

Checking System Operation ....................... 16

Installing Thermostat Sensor ...................... 17

Operating Thermostat Sensor ..................... 18

2 58D6002

IMPORTANT SAFETY INFORMATION

INSTALLER

Please leave these instructions with the owner.

IMPORTANT

Read these instructions carefully before installing or trying to operate this vent-free gas heater.

• Any change to this heater or its controls can be dangerous.

• Improper installation or use of the heater can cause serious injury or death from fire,
burns, explosion or carbon monoxide poisoning.

• Do not allow fans to blow directly into the stove. Avoid any drafts that alter burner
flame patterns.

WARNING

• Do not use a blower insert, heat exchanger insert or other accessory, not approved
for use with this heater where applicable.

1. Due to high temperatures, the appliance should
be located out of traffic and away from furniture
and draperies.

2. Children and adults should be alerted to the hazard
of high surface temperature and should stay away
to avoid burns or clothing ignition.

3. Young children should be carefully supervised
when they are in the same room with the apli
ance.

4. Do not place clothing or other flammable material
on or near the appliance.

5. Any safety screen or guard removed for servicing
an appliance, must be replaced prior to operating
the heater.

6. Installation and repair should be done by a qualified
service person.

7. To prevent malfunction and/or sooting, an unvented
gas heater should be cleaned before use and at least
annually by a professional service person. More
frequent cleaning may be required due to exces­sive lint from carpeting, bedding material, etc. It
is imperative that control compartments, burners
and circulating air passageways be kept clean.

8. CARBON MONOXIDE POISONING: Early signs of

carbon monoxide poisoning are similar to the flu with
headaches, dizziness and/or nausea. If you have these
signs, obtain fresh air immediately. Have the heater
serviced as it may not be operating properly.

-

OWNER

Please retain these instructions for future reference

9. The installation must conform with local codes or, in

the absence of local codes, with the National Fuel Gas

Code, ANSI Z223.l/NFPA54.

10. This unit complies with ANSI Z21.11.2-2001 Unvented
Heaters.

11. Do not install heater in a bathroom or bedroom unless
approved for bedroom use.

12. Correct installation of the ceramic fiber logs, proper
location of the heater, and annual cleaning are neces­sary to avoid potential problems with sooting. Sooting,
resulting from improper installation or operation, can
settle on surfaces outside the fireplace. See log placement
instructions for proper installation.

13. Avoid any drafts that alter burner flame patterns. Do not
allow fans to blow directly into fireplace. Do not place
a blower inside burn area of firebox. Ceiling fans may
create drafts that alter burner flame patterns. Sooting and
improper burning will occur.

14. Caution: Candles, incense, oil lamps, etc. produce com-
bustion by-products including soot. Vent-free appliances
will not filter or clean soot produced by these types of
products. In addition, the smoke and/or aromatics
(scents) may be reburnt in the vent-free appliance which
can produce odors. It is recommended to minimize the
use of candles, incense, etc. while the vent-free appliance
is in operation.

Continued on page 4

.

58D56002 3

IMPORTANT SAFETY INFORMATION

Continued from page 3

15. This is an unvented gas-fired heater. It uses air (oxygen)
from the room in which it is installed. Provisions for
adequate combustion and ventilation air must be pro­vided. See page 8.

16. Keep room area clear and free from combustible materi­als, gasoline and other flammable vapors and liquids.

17. Unvented gas heaters are a supplemental zone heater.
They are not intended to be a primary heating appli­ance.

18. Unvented gas heaters emit moisture into the living area.
In most homes of average construction, this does not pose
a problem. In houses of extremely tight construction,
addition mechanical ventilation is recommended.

19. During manufacturing, fabricating and shipping, various
components of this appliance are treated with certain
oils, films or bonding agents. These chemicals are not
harmful but may produce annoying smoke and smells
as they are burned off during the initial operation of the
appliance; possibly causing headaches or eye or lung
irritation. This is a normal and temporary occurrence.

The initial break-in operation should last two to three

hours with the burner at the highest setting. Provide
maximum ventilation by opening windows or doors to
allow odors to dissipate. Any odors remaining after this
initial break-in period will be slight and will disappear
with continued use.

20. Input ratings are shown in BTU per hour and are for
elevations up to 2,000 feet. For elevations above 2,000
feet, input ratings should be reduced 4 percent for each
1,000 feet above sea level. Refer to the National Fuel
Gas Code.

21. The appliance and its appliance main gas valve must be
disconnected from the gas supply piping system during
any pressure testing of that system at test pressures in
excess of 1/2 psig (3.5 kPa).

22. The appliance must be isolated from the gas supply
piping system by closing its equipment shutoff valve
during any pressure testing of the gas supply piping
system at test pressures equal to or less than 1/2 psig
(3.5 kPa).

23. Do not use this room heater if any part has been under
water. Immediately call a qualified service technician
to inspect the room heater and to replace any part of the
control system and any gas control which has been under
water.

24. Never burn solid fuels in an unvented room heater, fire
place or stove.

25. Do not set kettles or humidifying devices on top of
stove.

26. The stove door/screen must be closed when the appli­ance is operating. The screen shall have openings for
induction of combustion air.

-

4 58D6002

ON

OFF

Handle

PRODUCT FEATURES

On/Off
Switch

Optional

Remote

Receiver

Piezo

Hi/Lo Knob

Off/Pilot/On

Knob

Optional

Door

Thermostat

Sensor

Figure 1 - Cast Iron Stove

58D56002 5

A

C

B

DIMENSIONS

Figure 2 - Dimensions

CSVF20S CSVF30S

A 211/4" 263/4"
B 23" 281/2"
C 161/2" 193/4"

6 58D6002

GETTING STARTED

MAKE SURE YOU HAVE RECEIVED ALL PARTS:

Check your packing list to verify that all listed parts have been received. You should have the following:

• Cast Iron Stove with Burner Assembly

• Installation/Operating Instructions

• Ceramic Fiber Logs

• Touch-up Paint

Millivolt controlled heater designed to be operated with optional devices for ON/OFF functions.

• Hand-Held Remote with Receiver, Manual or Thermostat

• Wall Switch with 15' Wire

• Wall T-stat with 15' Wire

• Stove Mounted Thermostat Control

Gloves are recommended when handling ceramic fiber logs to prevent skin irritation
from loose fibers. Logs are fragile--handle with care.

CAUTION

Carefully inspect the contents for shipping damage. If any parts are missing or damaged, immediately inform the dealer
from whom you purchased the appliance. Do not attempt to install any part of the appliance unless you have all parts

in good condition.

WHAT YOU WILL NEED FOR INSTALLATION:

You must have the following items available before proceeding with installation:

• External regulator (for propane/L.P.G.)
or high pressure natural gas (1 to 2 PSI system)

• Piping which complies with local codes • Manual shutoff valve

• Sediment trap (recommended) • Tee joint

• Pipe wrench or appropriate wrench set • Screwdrivers

• Pipe sealant approved for use with propane/L.P.G.
(Resistant to sulfur compounds)

58D56002 7

PRODUCT SPECIFICATIONS

NATURAL GAS

NOTE: An external regulator is required to reduce supply pressure to a maximum of 101/2" w.c. on Natural Gas
systems operating at higher pressure.

MILLIVOLT PRESSURE

Regulator Pressure Setting: 3.5" w.c.
Pilot Regulator: 3.5" w.c.
Gas Inlet Pressure: Max. 10 1/2" w. c. Min. 5" w.c.

Gas Rate

Model Number Type Max. BTU/Hr Min. BTU/Hr

CSVF20SNV(G-EBL-ES-EMB) Milli-Volt 10,000 6,000
CSVF30SNV(G-EBL-ES-EMB) Milli-Volt 32,000 20,000

PROPANE / LPG

Note: An external regulator is required to reduce supply pressure to a maximum of 13" w.c.

MILLIVOLT PRESSURE

Regulator Pressure Setting: 10" w.c.
Gas Inlet Pressure: Maximum 13" w.c.
Minimum 11" w.c.

Gas Rate

Model Number Type Max. BTU/Hr Min. BTU/Hr

CSVF20SPV(G-EBL-ES-EMB) Milli-Volt 10,000 6,000
CSVF30SPV(G-EBL-ES-EMB) Milli-Volt 32,000 26,000

IGNITION CONTROLS

Piezo ignitor allows ignition of the pilot without the use of matches.

Milli-Volt control has four (4) positions:

OFF - All gas to the burner is shut off at the valve.
IGN - Valve position to light/maintain a standing pilot.
ON - Valve position to turn burners ON/OFF with remote switch/thermostat.
LOW/HI - Variable position to control flame height (heat output). Both front and rear burners are in operation to

provide realistic glow and yellow flame.

PILOT/ODS

The gas log heater is fitted with a specially designed safety pilot (ODS assembly) light which senses the amount of oxygen
available in the room and shuts the gas log heater off if the oxygen level begins to drop below a satisfactory level. The pilot
can only be relit when adequate fresh air is available.

THERMAL GENERATOR

The millivolt gas log pilot is fitted with a millivolt thermopile generator to provide power for remote activation.

8 58D6002

GENERAL INSTALLATION INFORMATION

Do not install the heater …

• Where curtains, furniture, clothing, or other flammable objects are less than 42" from
the front of the heater.

• In high traffic areas.

WARNING

• In windy or drafty areas.

CODES

Adhere to all local codes or, in their absence, the latest edition of THE NATIONAL FUEL GAS CODE ANSI Z223.1 or
NFPA54 which can be obtained from…

American National Standards Institute, Inc.

1430 Broadway

New York, NY 10018

or

National Fire Protection Association, Inc.

Batterymarch Park

Quincy, MA 02269

ADEQUATE COMBUSTION AND VENTILATION AIR

This heater shall not be installed in a confined space or unusually tight construction unless provisions are provided for
adequate combustion and ventilation air.

The National Fuel Gas Code, (ANSI Z223.1/NFPA54), defines a confined space as a space whose volume is less than 50
cubic feet per 1,000 BTU per hour (4.8 m
an unconfined space as a space whose volume is not less than 50 cubic feet per 1,000 BTU per hour (4.8 m
aggregate input rating of all appliances installed in that space. Rooms communicating directly with the space in which the
appliances are installed, through openings not furnished with doors, are considered a part of the unconfined space.

UNUSUALLY TIGHT CONSTRUCTION IS DEFINED AS CONSTRUCTION WHERE…

a) walls and ceilings exposed to the outside atmosphere have a continuous water vapor retarder with a rating of 1 perm

(6 x 1011 kg per pa-sec-m2) or less with openings gasketed or sealed;

b) weather stripping has been added on openable windows and doors, and

c) caulking or sealants are applied to areas such as joints around window and door frames, between sole plates and floors,

between wall-ceiling joints, between wall panels, at penetrations for plumbing, electrical, and gas lines, and at other
openings.

3

per kw) of the aggregate input rating of all appliances installed in that space and

3

per kw) of the

58D56002 9

O

N

O

FF

L

2

L

1

W

H

GENERAL INSTALLATION INFORMATION

Figure 3 - Example of a Large Room with 1/2 Wall Divider

Counter

Cast Iron Stove

The following formula can be used to determine the maximum heater rating per the definition of unconfined space:

BTU/Hr = (L1 + L2) Ft x (W) Ft x (H) Ft

x 1000

50

Consider two connecting rooms with an open area between, with the following dimensions:

L1 = 151/2 Ft., L2 = 12 Ft., W = 12 Ft., H = 8 Ft.

BTU/Hr = (151/2 + 12) x (12) x (8)

x 1000 = 52800 BTU/Hr

50

If there were a door between the two rooms the calculation would be based only on the room with the heater.

BTU/Hr = (151/2) x (12) x (8)

x 1000 = 29760 BTU/Hr

50

If the area in which the heater may be operated is smaller than that defined as an
unconfined space or if the building is of unusually tight construction, provide adequate
combustion and ventilation air by one of the methods described in the National Fuel

10 58D6002

Gas Code, ANSI Z223.1, NFPA54, Section 5.3 or applicable local codes.

WARNING