DeLonghi WIR1, WIR2 User Manual

THERMOSTATICALLY CONTROLLED WALL MOUNTED

UNVENTED GAS HEATER WIR1-WIR2

(Equipped with Pilot Light Safety System)

WARNING: 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.

WARNING: Improper
installation,adjustment, alteration,
service, or maintenance can cause
injury or property damage. Refer
to this manual for correct installa­tion and operational procedures.
For assistance or additional infor­mation consult a qualified installer,
service agency, or the gas supplier.

WARNING: 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 Air for
Combustion and Ventilation section
on page 4 of this manual.

This appliance may be installed in an aftermarket*, permanently located, manufactured
(mobile) home, not prohibited by local codes. This appliance is only for use with the type of
gas indicated on the rating plate. This appliance is not convertible for use with other gases.

* Aftermarket: completion of sale, not for purpose of resale, from the manufacturer

SAVE THIS MANUAL FOR FUTURE REFERENCE

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SAFETY INFORMATION
WARNING:

Carbon monoxide Poisoning: Early signs of

carbon monoxide poisoning resemble the flu,
with headaches, dizziness, or nausea. If you
have these signs, the heater may not be work­ing properly. Get fresh air at once! Have
heater serviced. Some people are more affect­ed by carbon monoxide than others. These
include pregnant women, people with heart or
lung disease or anemia, those under the influ­ence of alcohol, and those at high altitudes.
Natural and Propane/LP Gas: Natural and
propane/LP gases are fuel gases. Fuel gases
are odorless. An odor-making agent are
added to fuel gases. The odor helps you detect
a fuel gas leak. However, the odor added to
fuel gas can fade. Fuel gas may be present
even though no odor exists.
Make certain you read and understand all
warnings. Keep this manual for reference. It is
your guide to safe and proper operation of
this heater.

2

TABLE OF CONTENTS

Safety information 2
Local codes 3
Product identification 3
Unpacking 3
Product features 4
Air for combustion and ventilation 4
Installation 7

Operating heater 11
Cleaning and maintenance 14
Specifications 15
Troubleshooting 16
Service hints 15
Technical service 15
Warranty information 19

IMPORTANT: Read this owner’s manual
carefully and completely before trying to
assemble, operate, or service this heater.
Improper use of this heater can cause seri­ous injury or death from burns, fire, explo­sion, electrical shock, and carbon monoxide
poisoning.

DANGER: Carbon monoxide poisoning may
lead to death!

WARNING: Any change to this heater or its
control can be dangerous.

WARNING: Do not use any accessory not
approved for use with this heater.

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

Surface of heater becomes ver y hot when r un­ning heater. Keep children or adults away from
the surface to avoid burns a clothing igniton.
Heater will remain hot for a time after shut­down. Allow surface to cool before touching.

Carefully supervise young children when
they are in the same room with heater.

Keep the appliance area clear and free from
combustible materials, gasoline and other
flammable vapors and liquids.

Do not place clothing or other flammable
material on or near the appliance. Never
place any objects on the heater.

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

Installation and repair should be done by a
qualified service person. The appliance
should be inspected 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 of the appliance be kept
clean.

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1. This appliance is only for use with the type
of gas indicated on the rating plate. This
appliance is not convertible for use with
other gases.

2.Do not place propane/LP supply tank(s)
inside any structure. Place propane/LP sup­ply tank(s) outdoors.

3. This heater shall not be installed in a bed­room or bathroom.

4. If you smell gas

- Shut off gas supply

- 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.

5. Always run heater with plaque control
knob 1,2,3 or at the 1,2, or 4 locked posi­tions, Never set control knob between
locked positions. Poor combustion and
higher levels of carbon of monoxide may
result.

6. This heater needs fresh, outside air ventila­tion to run properly. This heater has an
Oxygen Depletion Sensing (ODS) safety
shutoff system. The ODS shuts down the
heater if not enough fresh air is available.
See Air for combustion and Ventilation,
pages 4 through.

7. If heater shut off, do not light again until
you provide fresh, outside air. If heater
keeps shutting off, have it service.

8. Do not run heater

-where flammable liquids or vapors are
used or stored

-under dusty conditions

9. Do not use 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.

10.Turn off and unplug heater and let cool
before servicing. Only a qualified ser vice

person should service and repair heater.

11.Operating heater above elevations of
4,500 feet could cause power outage.

12. To prevent performance problems, do not
use propane/LP fuel tank of less than 100
lbs. capacity.

13. Before using furniture polish, wax, carpet
cleaner, or similar products, turn heater
off. If heated, the vapors from these prod­ucts may create a white powder residue
within burner box or on adjacent walls or
furniture.

14.Provide adequate clearances around air
openings.

LOCAL CODES

Install and use heater with care. Follow all
local codes, use the latest edition of National

Fuel Gas Code, ANSI Z223.1/NFPA 54*

* Available from:

American National Standards Institute, Inc.

1430 Broadway

New York, NY10018

National Fire Protection, Inc

Batterymarch Park

Quincy, MA 02269

PRODUCT IDENTIFICATION

UNPACKING

1. Remove the heater from carton.

2. Remove all protective packaging applied
to heater for shipment.

3. Check heater for any shipping damage. If
heater is damaged, promptly inform deal­er where you bought heater.

3

Fig.1

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PRODUCT FEATURES
Safety device

This heater has a pilot with an Oxygen
Depletion Sensing (ODS) safety shutoff system.
The ODS/pilot is a required feature for vent­free room heaters. The ODS/pilot shuts off the
heater if there is not enough fresh air.

Piezo ignition system

This heater has a piezo ignitor. This system
requires no matches, batteries, or other
sources to light heater.

AIR FOR COMBUSTION AND VENTILATION

Today’s home are built more energy efficient
than ever. New materials, increased insula­tion, and new construction methods help
reduce heat loss in homes. Home owners
weather strip and caulk around windows and
doors to keep the cold air out and the warm
air in. During heating months, home owners
want their homes as airtight as possible.

While it is good to make your home energy
efficient, your home needs to breathe. Fresh
air must enter your home. All fuel-burning
appliances need fresh air for proper combus­tion and ventilation.

Exhaust fans, fireplaces, clothes dryers, and
fuel burning appliances draw air from the
house to operate. You must provide adequate
fresh air for these appliances. This will ensure
proper venting of vented fuel-burning appli­ances.

PROVIDING ADEQUATE VENTILATION

The following are excerpts from National Fuel
Gas Code, ANSI Z223.1/NFPA 54, Section

5.3 Air for Combustion and Ventilation.

All spaces in homes fall into one of the three
following ventilation classification:

1. Unusually Tight Contruction

2. Unconfined Space

3. Confined Space

The information on page 4 through 6 will help
you classify your space and provide adequate
ventilation.

Unusually Tight Construction

The air that leaks around doors and windows
may provide enough fresh air for combustion
and ventilation. However, in buildings of
unusually tight construction, you must provide
additional fresh air.

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 one perm
(6x10

-11

Kg per pa-sec-m2) or less with

openings gasketed or sealed and

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 sole plates and floors, between
wall panels, at penetrations for plumbing,
electrical, and gas lines, and at other
openings.

If your home meets all of three criteria above,
you must provide additional fresh air. See
Ventilation Air From Outdoors, page 6
If you home does not meet all of the three cri­teria above, proceed to Determining Fresh-Air
Flow For Heater Location, page 5

4

WARNING: This heater shall not be installed
in a confined space or unusually tight con­struction unless provisions are provided for
adequate combustion and ventilation. Read
the following instructions to ensure proper
fresh air for this and other fuel-burning
appliances in your home.

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Confined and Unconfined Space

The National Fuel gas Code, ANSI
Z223.1/NFP A 54 defines a confined space as

a space whose volume is less than 50 cubic
feet per 1,000 Btu per hour (4,8 m

3

per kw) of
the aggregate input rating of all appliances
installed in that space and an unconfined
space as a space whose volume is not less
than 50 cubic feet per 1,000 Btu per hour (4,8
m

3

per kw) of the aggregate input rating of all
apliances 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.

*Adjoining rooms are communicating only if
there are doorless passageways or ventilation
grilles between them.

DETERMINING FRESH-AIR FLOW FOR
HEATER LOCATION.
Determining if you have a confined or uncon­fined space.

Use this work sheet to determine if you have a
confined or unconfined space.
Space: includes the room in which you will
install heater plus any adjoining rooms with
doorless passageways or ventilation grilles
between the rooms.

1. Determine the volume of the space (length

x width x height).

length x width x height =________ cu.ft.

(volume of space)

Example: space size 20ft. (length) x 16 ft

(width) x 8ft (ceiling height) = 2560 cu. ft.
(volume of space)

If additional ventilation to adjoining room

is supplied with grilles or openings, add
the

volume of these rooms to the total volume

of the space.

2. Multiply the space volume by 20 to deter-

mine the maximum Btu/Hr the space can
support.
________ (volume of space) x 20= 51.200

(maximum Btu/Hr the space can support)

Example:2560 cu. ft (volume of space) x

20= 51.200 (maximum Btu/Hr the space
can support)

3. Add the Btu/Hr of all fuel burning appli­ances in the space.

Vent-free heater ____________Btu/Hr
Gas water heater* ____________Btu/Hr
Gas furnace ____________Btu/Hr
Vented gas heater ____________ Btu/Hr
Gas fireplace logs ____________Btu/Hr
Other gas appliances* +________Btu/Hr
Total =___________Btu/Hr

* Do not include direct-vent gas appliances. Direct-

vent draws combustion air from the outdoors and
vents to the outdoors.

Example

Gas water heater* 40,000

Btu/Hr

Vent-free heater + 20,000

Btu/Hr

Total = 60,000

Btu/Hr

4. Compare the maximum Btu/Hr the space
can support with the actual amount of
Btu/Hr used.

Btu/Hr (maximum the space can
support)
Btu/Hr (actual amount of Btu/Hr used)

Example: 51,200 Btu/Hr (maximum the space

can support)
60,000 Btu/Hr (actual amount of Btu/Hr

used)
The space in the above example is a confined
space because the actual Btu/Hr used is more
than the maximum Btu/Hr the space can sup­port. You must provide additional fresh air.

Your options are as follows:
A. Rework worksheet, adding the space of an

adjoining room. If the extra space pro­vides an unconfined space, remove door
to adjoining room or add ventilation grills
between rooms. See ventilation air from
inside building, page 4

B. Vent room directly to outdoors. See ventila-

tion air from outdoors, page 4

C. Install a lower Btu/Hr heater, if lower

Btu/Hr size makes room unconfined.

5

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If the actual Btu/Hr used is less than the max­imum Btu/Hr the space can support, the space
is an unconfined space. Y ou will need no addi­tional fresh air ventilation.

VENTILATION AIR
Ventilation Air From Inside Building

This fresh air would come from an adjoining
unconfined space.
When ventilating to an adjoining unconfined
space, you must provide two permanent open­ings: one within 12” of the ceiling and one
within 12” of the floor on the wall connecting
the two spaces (see options 1 and 2, figure
??). Follow the National Fuel gas Code, ANSI

Z223.1/NFA 54, section air for combustion
and ventilation for required size of ventilation

grills or ducts.

Ventilation Air From Outdoors

Provide extra fresh air by using ventilation grilles
or ducts. You must provide two permanent open­ings: one within 12”of the ceiling and one within
12” of the floor . Connect these items directly to the
outdoors. These spaces include attics and crawl
spaces. Follow the National Fuel gas Code, ANSI

Z223.1/NFA 54, section air for combustion and
ventilation for required size of ventilation grills or

ducts.

IMPORT ANT: Do not provide openings for inlet
or outlet air into attic has a thermostat-con­trolled power vent. Heated air entering the
attic will activate the power vent.

6

WARNING: 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 Gas
Code, ANSI Z223.1/NFPA 54 section 5.3 or
applicable local codes.

Fig.2 V entilation Air from Inside Building

Fig.3 V entilation Air From Outdoors

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