Operating instructions

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UNVENTED (GAS LOG) ROOM HEATER

INSTALLATION AND OPERATING INSTRUCTIONS

This heater is equipped with a PILOT LIGHT SAFETY SYSTEM designed to turn off the heater

if not enough fresh air is available.

Models HM2-MAN, HM2-T and HM2-MIL-18”, 24” and 33” Burner Units

with HM2-RO and HM2-SO Log Sets

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 property damage, personal injury or loss of life. Refer to

this manual for information. Installation and service must be performed by a

qualified installer, service agency or the gas supplier.

16-1010 (04/01)

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 5 of these instructions.

This appliance is for supplemental heating only. It should not

be used as a primary heat source for a dwelling.

DO NOT TAMPER 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.

Summary of content (24 pages)

PAGE 1
UNVENTED (GAS LOG) ROOM HEATER INSTALLATION AND OPERATING INSTRUCTIONS Models HM2-MAN, HM2-T and HM2-MIL-18”, 24” and 33” Burner Units with HM2-RO and HM2-SO Log Sets WARNING: Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal injury or loss of life. Refer to this manual for information. Installation and service must be performed by a qualified installer, service agency or the gas supplier. This is an unvented gas-fired heater.
PAGE 2
IMPORTANT: BEFORE BEGINNING INSTALLATION READ COMPLETE INSTRUCTIONS CAREFULLY. WARNING! When used without fresh air, heater may give off CARBON MONOXIDE, an odorless poisonous gas. DO NOT TAMPER WITH PILOT LIGHT SAFETY SYSTEM This heater is equipped with a PILOT LIGHT SAFETY SYSTEM designed to turn off the heater if not enough fresh air is available. If heater shuts off, do not relight until you provide fresh air.
PAGE 3
WARNING: This appliance is for installation only in a solid-fuel burning fireplace or approved ventless firebox enclosure. + 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. + Early signs of carbon monoxide poisoning resemble the flu, with headache, dizziness and/or nausea.
PAGE 4
WARNING + + This room heating appliance is factory designed to produce a flame having a clean and virtually transparent appearance. If at any time the appliance begins to appear abnormal due to excessive yellow flames, noticeable odor, or any carbon deposits on the logs, immediately turn the appliance to the “OFF” position and contact a qualified service technician or the gas company.
PAGE 5
COMBUSTION AND VENTILATION PROVISIONS WARNING: This heater shall not be installed in a confined space or unusually tight construction unless provisions are provided for adequate combustion and ventilation air. Confined Space and Unconfined Space The National Fuel Gas Code, ANSI Z223.1 defines a confined space as a space whose volume is less than 50 cubic feet per 1,000 Btu per hour (4.
PAGE 6
INSTALLATION CLEARANCES To ensure a safe installation in a masonry or approved factory built fireplace, the following instructions must be carefully followed. + + + A) Minimum clearance from the side of the fireplace opening to any combustible wall should not be less than 15 inches. B) Minimum clearance from the top of the fireplace opening to any combustible ceiling should not be less than 42 inches.
PAGE 7
INSTALLATION INSTRUCTIONS WHEN INSTALLING AS A VENT FREE APPLIANCE The installation of this appliance must conform with local codes or, in the absence of local codes with the National Fuel Gas Code, ANSI Z223.1. NOTE: Before the unit is connected to any gas line, check the name plate on the unit for the proper gas type you will be using. The appliance regulator furnished on the appliance is not intended to regulate any gas pressure above ½psig.
PAGE 8
ASSEMBLY INSTRUCTIONS 1. Remove grate/burner assembly from the box and place in the center of the fireplace. 2. Connect the gas line to the appliance regulator located under the grate. NOTE: The manual and thermostat valve units will have this appliance regulator. The millivolt valve will not have this regulator. The appliance regulator is built into the millivolt valve and the gas line is connected to the valve. 3. Make sure the gas connections are tight.
PAGE 9
OPERATING INSTRUCTIONS for LOG SET AS IT COMES FROM THE FACTORY If a wall switch, thermostat or remote control has been purchased, you must follow installation and operating instructions on pages 11and 12 of this instruction manual. HM2-MAN 18,24 & 33 LP and Natural Gas (See FIG. 1) 1. Notice the white marker line between the igniter button and the control knob. This white marker line is the line-up mark for the control knob. 2. Follow the safety information on page 15 of this instruction manual. 3.
PAGE 10
7. Allow the unit to operate at the highest setting until the room temperature reaches your comfort level. 8. Turn the control knob clockwise in this temperature range. until the flame goes out. This sets the control valve to operate 9. After the log set cycles a few times, you can increase or decrease the temperature setting simply by rotating the control knob toward “HI” or “LOW”. 10. To turn the main burner off, simply rotate the control knob clockwise to the “PILOT” position.
PAGE 11
INSTALLATION INSTRUCTIONS for HM2 MIL 18,24 & 33 ACCESSORIES (Wall Switch, Thermostat, Remote Control) WALL SWITCH + It is suggested by the manufacturer that a qualified individual complete this installation. + Your HM2 MIL Series log set is shipped from the factory set up to operate without the use of any of the accessories.
PAGE 12
4. Attach the two wires to the wall thermostat, one to each of the terminals on the wall thermostat. 5. Make sure the ON/OFF lever on the wall thermostat is turned off and mount the wall thermostat. The cover of the thermostat snaps off for access to the mounting screw location. 6. Attach the two wires at the log set to the two terminals marked TH on the terminal block. (Make sure the wall thermostat is turned off.) 7. Notice the notch in the metal plate on the right hand side of the ON/OFF knob.
PAGE 13
LOG PLACEMENT PHOTOS (RO SERIES) HM2-RO-18 Front View HM2-RO-18 Side View HM2-RO-24 Front View HM2-RO-24 Side View HM2-RO-33 Front View HM2-RO-33 Side View WARNING: Failure to position the parts in accordance with these diagrams or failure to use only the parts specifically approved with the heater may result in property damage or personal injury.
PAGE 14
LOG PLACEMENT PHOTOS (SO SERIES) HM2-SO-18 Front View HM2-SO-18 Side View HM2-SO-24 Front View HM2-SO-24 Side View HM2-SO-33 Front View HM2-SO-33 Side View WARNING: Failure to position the parts in accordance with these diagrams or failure to use only the parts specifically approved with the heater may result in property damage or personal injury.
PAGE 15
FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance has a pilot which must be lighted by hand. When lighting the pilot, follow these instructions exactly. This appliance is equipped with a push button piezo ignition device which can be used to light the pilot. If the piezo fails to ignite the pilot, then follow the instructions for lighting pilot with match.
PAGE 16
FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance has a pilot which must be lighted by hand. When lighting the pilot, follow these instructions exactly. This appliance is equipped with a push button piezo ignition device which can be used to light the pilot. If the piezo fails to ignite the pilot, then follow the instructions for lighting pilot with match.
PAGE 17
CLEANING AND MAINTENANCE INSTRUCTIONS ALWAYS REMEMBER: 1. Do not operate this appliance without the fireplace screen closed. 2. Do not place any combustible material near the appliance. 3. Do not place any paper, trash or other material on the log set or in the heater. 4. Do not touch any part of the appliance when the unit is operation. Your gas log set is designed to be virtually maintenance free, although periodic visual inspection and cleaning is required.
PAGE 18
PROPANE GAS NATURAL GAS MANUAL AND THERMOSTATIC VALVES NATURAL GAS PROPANE GAS MILLIVOLT VALVES 18” Log Set 24” Log Set 33” Log Set 18
PAGE 19
INSTALLATION INSTRUCTIONS WHEN INSTALLING AS A VENTED DECORATIVE APPLIANCE When installing as a vented appliance, the following statements and charts must be followed. + Thermostat models can not be installed as a vented appliance under ANSI Z21.60-CGA 2.26M96T standard (i.e. HM2-Tstat-24 and HM2-Tstat-33). + This appliance must be installed only in a solid-fuel burning fireplace with a working flue, and constructed of noncombustible material.
PAGE 20
TABLE 1A for FACTORY BUILT FIREPLACES Free opening area of chimney damper for venting combustion products from decorative appliances for installation in solid fuel burning fireplaces. MINIMUM PERMANENT FREE OPENING IN SQUARE INCHES Chimney 18” Log Set Height (Feet) LP Gas 10 15 20 25 30 35 40 16.6 12.6 10.8 9.6 9.1 8 7.5 18” Log Set Natural Gas 24” Log Set LP Gas 24” Log Set Natural Gas 33” Log Set LP Gas 33” Log Set Natural Gas 16.6 12.6 10.8 9.6 9.1 8 7.5 22.1 17.3 14.5 12.6 11.3 10.8 10.2 22.
PAGE 21
LOG PARTS LIST 15 3 5 4 18 19 16 32 29 27 30 17 2 33 28 31 6 1 HM2-RO-18 12 9 10 11 26 14 HM2-RO-24 13 22 21 25 HM2-RO-33 35 36 23 38 24 8 7 KEY NUMBER PART NO.
PAGE 22
PARTS DIAGRAM D E F G HM 2M B AN UA L LP &N AT FF C PIL OT K A F E C DD W D Q HM N OUT LO HI it ON S TH PILOT PP CC D PILOT T TO D H PIL O U LA TO RS R TH OL N AA VA LV EA SS C BB EM B LY ON AA OFF FO EO D Z G EE T RE GU TS LT IN RL D C ILO V PIL OT D AL LP Y TO E HM 2M ILL IVO Y FF CA ILO I X TP B LT L OFF IVO C IN ILL TP TH 2M D S T AL LN O E AT .
PAGE 23
PARTS LIST KEY LETTER PART NO. A A A B B B C D E F F F F G H I I I J K 11-1181b 11-1182b 11-1183b 11-1350 16-1100 16-1110 01-1080 01-1095 11-1076 11-1075 11-1080 16-1040 16-1045 11-1060 03-1000 11-1265b 11-1270b 11-1275b 11-1295 01-1004 L L M N N 06-1030 06-1031 11-1185 11-1095 11-1100 KEY LETTER PART NO.
PAGE 24
HEATMASTER, INC. LIMITED WARRANTY All refractory cement logs manufactured by HEATMASTER, Inc. have a lifetime warranty against breakage due to heat to the original owner in the original installation. All other logs supplied from HEATMASTER, Inc. have a 2 year warranty against breakage due to heat to the original owner in the original installation. + + All metal parts, including burners and grate assemblies are warranted for 5 years. All other mechanical parts are warranted for 1 year. LIMITATIONS 1.