Procom ML100HBAHR, ML100TBAHR User Manual

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BLUE FLAME VENT-FREE
PROPANE/PL GAS HEATER

OWNER’S OPERATION AND INSTALLATION MANUAL

Do not store, or use gasoline or other ammable
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.
 Im m ediatel y call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
 If you cannot reach your gas supplier, call
the re department.

Installation and service must be performed by a
qua l i fied in s ta ller , se r v ice ag e n cy or gas

ML100HBAHR & ML100TBAHR

supplier.

Table of Contents

Important Safety Information....................................2

Product Features.....................................................3

Air For Combustion& Ventilation .................................4

Installation................................................................6

Operating Your Heater............................................13

Care & Maintenance...............................................14

Troubleshooting......................................................15

Specications..........................................................18

Parts List..................................................................20

WARN ING: This is an unvented gas­red heater. It uses air (oxygen) fr o m
t h e ro o m in wh i c h it is install ed.
Pr ovisions for ad e quate combustion and
ventilation air must be pr ov i d e d. Re f e r
t o Ai r F or Combustion and Ventilation
section on page 4 of this manual.

WARNING: If the information in this
manual is not followed exactly, a  re o r
ex pl os io n m ay r e su lt causing property
damage, personal injury, or loss of life.

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 qualied installer, service
agency, or gas supplier.

This appliance may be installed in an after­market* permanently located, manufactured
(mobile) home, where 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.

Installer: Please leave these instructions with

the consumer.

Consumer: Please retain these instructions for
future use.

Questions about installation, operation, or troubleshooting? Before returning to your retailer, contact our
customer service department at (877)-886-5989,

PC-ML062-16HR-1202

IMPORTANT
SAFETY INFORMATION

I M P ORTAN T : Read this

ow ner ’s m anual care fully and
co mp l et e ly be fo r e tr y in g t o
assem b l e , o p e ra te , or serv i c e
this heate r. Impro p e r us e of
this heater can cause serious
injury or death fr o m burns,
f i re , e xp l o si o n , e l e c t r ic a l
sh o c k , and ca r b o n monoxide
poisoning.

DANGER: Carbon monoxide

poisoning may lead to death!

Carbon Monoxide Poisoning.

Early signs of carbon monoxide
poiso ning rese mble the flu with
headaches, dizz iness, 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
ot hers. The se i nclud e pregn ant
women, persons with heart or lung
disease or anemia, those under
the inuence of alcohol, and those
at high altitudes.

Propane/PL: Propane/PL gas is
odorless. An odor-making agent is
added to natural gas. The odor
hePLs you detect a natural gas leak
. However, the odor added to natural
gas can fade. natural gas may be
present even though no odor exists.

Make certain you read and un­de r st a nd a l l war n in g s. Ke e p
this manual for reference. It is your
guide to safe and proper operation
of this heater.

WARNING: Do not use any

acces s o r y no t appr o v e d for
use with this heater.

WARNING: Any change to

this heater or its controls can
be dangerous.

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

Due to high temperatures, heater
s h o u l d b e k e p t o u t o f
tr a f f i c an d away fr o m fu r n i t u r e
and draperies.

Sur f ace o f hea t e r b e c ome s
very hot when running heater.
Keep children and adults away
from hot surface to avoid burns
or clothing ignition. Heater will
remain hot for a time after shut
down. Al l ow surf a c e to co o l
before touching.

C a r e fu l l y s u pe r v i s e y o u n g
children when they are in the
same room with heater.

Ma k e sure grill guard is in
place before running heater.

Keep the appliance area clear
an d fr e e fr o m co m bu s ti b le
materi a l s , ga s o l i ne , and ot he r
flammabl e vapo rs and liqu ids.

WARNING

Models ML100HBAHR, ML100TBAHR
are equipped for propane gas. Field
conversion is not permitted.

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/PL supply
tank(s) inside any structure. Locate
propane/PL supply tank(s) out­doors.

3. 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 re department.

4. Do not install in a bathroom

5. This heater needs fresh, outside

air ventilation to run properly. This
heater has an Oxygen Depletion
Sensor (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 6

6. Keep all air openings in the
front and bottom of heater
clear and free of debris. This
will insure enough air for
proper combustion.

7. If heater shuts off, do not
relight until you provide fresh,
outside air. If heater keeps
shutting off, have it serviced.

8. Do not operate heater
l where ammable liquids or
vapors are used or stored
l under dusty conditions

9. 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.

10. Always run heater with control
knob at PILOT/IGN, LOW or
HIGH locked positions. Never
set control knob between locked
positions. Poor combustion and
higher levels of carbon monoxide
may result.

11.Do not use heater if any part
has been under water.
Immediately call a qualied
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.

12. Turn off heater and let cool
before servicing. Only a qualied
service person should service
and repair heater.

13. Operating heater above
elevations of 4,500 feet could
cause pilot outage.

14. Install and use heater with care.
Follow all local ordinances and
codes. In the absence of local
ordinances and codes, refer to
the Standard for Storage and
Handling of Liqueed Petroleum
Gas, ANSI/NFPA 58 Installation
Code, CAN/CGAB149.2. This
instructs on the safe storage and
handling of propane/PL gases.

2

15. This heater may be used in a recreational enclosure or
temporary construction work enclosure with a remote
rellable propane/PL cylinder ONLY when the cylinder is
located outdoors and the heater is used with the hose
(included with this heater). NEVER bring a rellable
propane/PL cylinder indoors. A re or explosion can occur
causing property damage, serious injury or death.

16. Use only the hose and factory preset regulator provided
with the heater, when connecting to portable supply gas
tank. Use only replacement pressure regulators and hose
assemblies specied in this manual.

17. Inspect the hose before each use of the heater. If it is
evident there is excessive abrasion or wear or the hose is
cut, it must be replaced prior to the heater being put into
operation.

18. Use only propane gas set up for vapor withdrawal.

19. This heater can only be used in a recreational or
commercial enclosure with a window or roof vent. This
heater is not for outdoor use

PRODUCT FEATURES

SAFETY DEVICE

A standard requirement for all vent-free room
heaters, this heater has a pilot with an Oxygen
Depletion Sensor(ODS) safety shutoff system.
The ODS/pilot shuts off the heater if there is
not enough fresh air.

PIEZO IGNITION SYSTEM

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

THERMOSTATIC CONTROL ON
THERMOSTAT MODEL

These heaters have a control valve with a
thermostat sensing bulb. This results in the
greatest heater comfort and may result in
lower gas bills.

LOCAL CODES

Install and use heater with care. Follow all local
codes. In the absence of local codes, use the
latest edition of National Fuel Gas Code ANSZ223.1,
also known as NFPA 54*.
*Available from :
American National Standards Institute, Inc.

1430 Broadway

New York, NY 10018

National Fire Protection Association, Inc.

Batterymarch Park

Quincy, MA 02269

Propane/PL gas and propane/PL tank(s) are to be furnished by the user. The propane/PL cylinder to be used must
be constructed and marked in accordance with the specications for the propane/PL gas cylinders of the U.S.
Department of Transportation (DOT). Use this heater only with a propane/PL vapor withdrawal supply system. See
Chapter 5 of the Standard for Storage and Handling of Liqueed Petroleum Gas, ANSI/NFPA 58 and/or CAN/
CGAB 149.2. Your local library or re department will have this booklet. The amount of propane/PL gas ready for
use from propane/PL tanks varies. Two factors decide this amount:

1. The amount of propane/PL gas in tank(s)

2. The temperature of tank(s)
This heater is designed for use with a 20 or 40 pound rellable propane/PL cylinder when used as a self contained
heating system (with hose and regulator). Larger tanks may be used if installed in a permanent gas supply system.
The propane/PL cylinder used must include a collar to protect the cylinder valve and a listed over-lling prevention
device (OPD).

Propane/PL Supply

Figure1-Vent-Free Propane/PL Gas Heater

State of Massachusetts: The installation must

be made by a licensed plumber or gas tter in the
Commonwealth of Massachusetts.
Sellers of unvented propane or natural gas-red
supplemental room heaters shall provide to each pur­chaser a copy of 527 CMR 30 upon sale of the unit.
In the state of Massachusetts, unvented propane or
nature gas-red space heaters shall be prohibited in
bedrooms and bathrooms.

UNPACKING

1. Remove 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

FRESH AIR FOR
COMBUSTION AND

VENTILATION

WARN I N G : If the ar e a in
which the heater may be operated
do e s no t m ee t t he r e qu i re d
volume for indoor combustion air,
co m b ustion and ventilati o n air
shall be provided by one of the
methods described in the National
F u e l G a s C o d e , A N S I
Z 2 2 3 . 1 / N F P A 5 4 , t h e
International Fuel Gas Code, or
a p p l i c a b l e l o c a l c o d e s .

PROVIDING ADEQUATE

VENTILATION

All spaces in homes fall into one of
the three following ventilation clas­sications:

1. Unusually Tight Construction

2. Unconned Space

3. Conned Space
The information on pages 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
dened as construction where:

a. walls and ceilings exposed to
the outside atmosphere have a
continuous water vapor retarder
with a rating of one perm (6×10
kg per pa-sec-m2) or less with
openings gasketed or sealed and
b. weather stripping has been
added on open able win dows and
doors and
c. caulking or sealants are applied to
areas such as joints around win­dow and door frames, between sole
plates and oors, between wall­ceiling joints, between wall panels, at
penetrations for plumbing, electrical,
and gas lines, and at other open­ings. If your home meets all of

the three criteria above, you must
provide additional fresh air. See

Ventilation Air From Outdoors,
pages 5 and 6. If your home does

not meet all of the three criteria
above, see Determining Fresh-Air

Flow for Heater Location, page 4, 5

-11

Conned and
Unconned Space

Conned space is a space whose
volume is less than 50 cubic feet
per 1,000 Btu per hour (4.8 m3 per
kw) of the aggregate input rating
of all appliances installed in that
space and an unconned space
as a space whose volume is not
less than 50 cubic feet per 1,000
Btu per hour (4.8 m3 per kw) of
the 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 wit h
doors, are considered a part of
the unconned space.
This heater shall not be in­stalled in a conned space or
unusually tight construction unless
pr ovisi ons are pr ovide d for
adequate combustion and
ventilation air.

* A d j oi n i n g r o om s a r e

communicating only if there
are doorless passageways or
ventilation grills between them.

DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION

Determining if you Have a Conned or Unconned Space*

Use this worksheet to determine if you have a conned or unconned space.
Space: Includes the room in which you will install heater plus any adjoining rooms with doorless passageways
or ventilation grills between the rooms.

1. Determine the volume of the space (length×width×height).
Length×Width×Height= cu.ft. (volume of space)
Example: Space size 20ft.(length)×16ft.( width)×8ft. (ceiling height)=2560cu. ft. (volume of space)
If additional ventilation to adjoining room is supplied with grills or openings, add the volume of these
rooms to the total volume of the space.

2. Divide the space volume by 50 cubic feet to determine the maximum Btu/Hr the space can support.
(volume of space)÷50 cu. ft.=(Maximum Btu/Hr the space can support)
Example: 2560 cu. ft. (volume of space)÷50 cu.ft.=51.2 or 51,200(maximum Btu/Hr the space can support)

WARNING: If the area in which the heater may be operated does not meet the required volume for indoor combustion
air, combustion and ventilation air shall be provided by one of the methods described in the National Fuel
Ga s Co d e , ANSI Z2 2 3 . 1 / NFPA 54 , th e In ternational Fu e l Ga s Co de, or applicabl e lo c a l co des.

4

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.

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)

54,000 Btu/Hr(actual amount of Btu/Hr used)
The space in the above example is a conned 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 unconned
space, remove door to adjoining room or add ventilation grills between rooms. See Ventilation Air From
Inside Building, page 5.
B. Vent room directly to the outdoors. See Ventilation Air From Outdoors, page 6 .
C. Install a lower Btu/Hr heater, if lower Btu/Hr size makes room unconned.

If the actual Btu/Hr used is less than the maximum Btu/Hr the space can support, the space is an
unconned space. You will need no additional fresh air ventilation.

Example:
Gas water heater 44,000 Btu/Hr
Vent free heater + 10,000 Btu/Hr
total = 54,000 Btu/Hr

AIR FOR COMBUSTION AND
VENTILATION

Continued

VENTILATION AIR

Ventilation Air From Inside Building :
This fresh air would come from an adjoining
unconned space. When ventilating to an
adjoining unconned space, you must provide
two permanent openings: one within 12” of
the ceiling and one within 12” of the oor
on the wall connecting the two spaces (see
options 1 and 2, Figure 2). You can also re­move door into adjoining room (see option 3,
Figure 2). Follow the National Fuel Gas Code
NFPA 54/ANS Z223.1. Section 5.3, Air for
Combustion and Ventilation for required size of
ventilation grills or ducts

WARNING: Rework worksheet ,
adding the space of the adjoining
unconned space. The combined spaces
must have enough fresh air to supply all
appliances in both spaces.

Figure 2 -Ventilation Air from Inside Building

5

Figure 3 -Ventilation Air from Outdoors

INSTALLATION

NOTICE: This heater is

intended for use as supplemental
heat. Use this heater along with
your primary heating system.
Do not install this heater as
your primary heat source. If you
have a central heating system,
you may run system’s circulat­ing blower while using heater.
This will help circulate the heat
throughout the house. In the
event of a power outage, you can
use this heater as your primary
heat source.

WARNING: A qualied
service person must install
heater. Follow all local codes.

CHECK GAS TYPE

Us e o nly natur al g as. If yo ur
gas supply is not natural, do
no t instal l heate r. Cal l dealer
wh e re yo u bo ught h e a ter f o r
proper type heater.

Ventilation Air From Outdoors

Pr o vide extr a fresh ai r by usi n g venti ­lation gril l s or duct s : You mus t pro ­vi d e t w o p e rm a n en t op e nin g s: o ne
within 12” of the ceiling and one within
12” of the oor.
Connect these items directly to the
outdoors or spaces open to the outdoors.
Th ese spa ces inc lude attics and cra w l
spaces. Follow the National Fuel Gas

Code NFPA 54/ANS Z223.1, Section 5.3.
Air for Combustion and Ventilation for

required size of ventilation grills or ducts.
IMPORTANT: Do not provide openings
for inlet or outlet air into attic if attic
has a thermostat-controlled power vent.
Heated air entering the attic will activate
the power vent.

INSTALLATION NEEDS

Before installing heater, make sure
you have the items listed below.

 piping (check local codes)
 sealant (resistant to natural

gas)

 equipment shutoff valve*
 ground joint union
 test gauge connection*
 sediment trap
 tee joint
 pipe wrench

*A CSA/AGA design-certied equip­ment shutoff valve with 1/8” NPT
tap is an acceptable alternative to
test gauge connection. Purchase the
optional CSA/AGA design certied
equipment shutoff valve from your
dealer.

LOCATING HEATER

This heater is designed to be
mounted on a wall.
For convenience and efficiency,
install heater
 where there is easy access for
operation, inspection, and
service.
 in coldest part of room.

CAUTION: If you install the
heater in a home garage
 heater pilot and burner must
be at least 18 inches above
oor.
 locate heater where moving
vehicle will not hit it.

WARNING: Never install

the heater

 in a bathroom
 in a recreational vehicle.
 where curtains, furniture,

clothing, or other ammable
objects are less than 36 inches
from the front, top, or sides
of the heater.

 as a replace insert.
 in high trafc areas.

 in windy or drafty areas.

When the heater is installed in
Bathrooms,do not use ammable
products such as aerosol hair foot
spary or any product that contains
ammable vapors and keep towels
away from heater.

CAUTION: This heater creates
warm air currents. These currents
move heat to wall surfaces
next to heater. Installing heater
next to vinyl or cloth wall cover­ings or operating heater where
impurities (such as tobacco smoke,
aromatic candles, cleaning uids,
oil or kerosene lamps, etc.) in the
air exist may discolor walls.

6

INSTALLATION

WA R NI N G: Ma i nt a in t h e

min i mu m cl e ar anc e s sho w n
i n F ig u r e 4 . I f yo u c a n,
provide greater clearances from
oor, ceiling, and joining wall.

Figure 4 -Mounting Clearances
As Viewed From Front Of Heater

INSTALLING THERMOSTAT
SENSING BULB
For T-Stat Model Only

1. Pull out the sensing bulb from the
two clips located in the shippng
position according to the direction
as shown by the arrow. There is no
need to take out the two bulb clips.

2. Take out the bulb clip from the
hardware package and insert it into
the square hole and then insert the
sensing bulb into the bulb clip (see
Figure 5).

FASTENING HEATER TO WALL
Mounting Bracket

The mounting bracket is located
on back panel of heater (see
Figure 6). It has been taped there
for shipp i n g . R e m o ve m o u n ti ng
bracket from back panel.

Figure 6 -Mounting Bracket
Location

Removing Lower Front Panel Of
Heater

1. Remove two screws near
bottom corners of lower front
panel.

2. Pull bottom of lower front panel
forward, then down (see Figure 7).

At tach ing to Wal l Stud: This
method provides the strongest hold.
Insert mounting screws through
mounting bracket and into wall studs.
Attaching to Wall Anchor: This
method al l o w s you to attach
mounting bracket to hollow walls
(wall areas between studs) or to
solid walls (concrete or masonry).

Decide which method better
suits your needs. Either method
will provide a secure hold for the
mounting bracket.

Marking Screw Locations

1. Tape mounting bracket to wall
where heate r w ill be locat ed.
Make sure mounting bracket is
level.

WARNING: Maintain
minimum clearances shown in
Figure 8. If you can, provide
greater clearances from oor
and joining wall.

2. Mark screw locat i o n s on
wall. (see Figure 8)
Note: Only mark last hole on
each end of mounting bracket.
Insert mounting screws through
these holes only.

3. Remove tape and mounting
bracket from wall.

Figure 5 -Moving Thermostat
Sensing Bulb

Figure 7 - Removing Lower Front
Panel Of Heater

Methods For Attaching Mounting
Bracket To Wall

Only use last hole on each end
of mou nti ng bracket to attach
bracket to wall. Attach mounting
bracket to wall only in one of two ways:

1. Attaching to wall stud

2. Attaching to wall anchor

7

Figure 8 - Mounting Bracket
Clearances