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2 1

PARTS  LIST

NON-THERMOSTAT

MODELS

HB20MN   HB30MN

This  list  contains  replaceable  parts  used  in  your  heater.  When  ordering  parts,
follow   the  instructions  listed under  Replacement  Parts  on   page17  of  this
manual.

KEY

NO.

1

2
3
4
5
6
7
8
9

10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28

28-1
28-2

29
30
31
32
33

HB30MN

 PART NO.

MB10003E

MB09001E
MB11002E
ML086-01
ML087-01
ML084-01E
ML088-01
ML069-02
NV2020-14
ML073-01
MB16002
ML029-01
NRV81FI-3
96-4Z
ML079-01
MB40016
MB40018
MB40019
MB40020
MB40021
ML096-01
MB40017
NBB30-000M1
ML101-01
ML091-01
ML103-01
ML104-01
ND1103x800x9
ND0803-8
ND0807-B2
ML105-01
6170-5Z
ML057-07
ML083-03
ML060-01

MB28001
ML070-17E
ML071-01
ML072-01

PARTS  AVAILABLE  NOT  SHOWN

DESCRIPTION

Cabinet   Assembly

Lower  Front  Panel  Assembly
Reflector  Unit
Glass
Upper glass  retainer
Middle  Panel
Lower   Glass  Retainer
Self  Tapping  Screw
Control  valve
Ignitor  Line
Control  Knob  Assembly
Control  Valve Fixed  Nut
Pressure  Regulator
Washer
Self  Locking  Screw
Main  Inlet  Tube  Assembly
ODS  Line  Assembly
Lower  Gas  Outline  Tube  Assembly
Medium  Gas  Outline  Tube  Assembly
High  Gas  Outline  Tube  Assembly
4-Way  Connector
Burner   Inlet  Tube  Assembly
Burner
Burner  Connector
Injector
Left  Burner  Support  Bracket
Right  Burner  Support  Bracket
ODS/Pilot  Assembly
Thermocouple
Ignitor   Electrode
ODS  Upper  Deflector
NUT
Grill  Guard
lgnitor   Assembly
Mounting  Bracket

Hardware  Kit
CSA/AGA  Label
Gas  Instruction  Decal
Inside  Warning  Label

QTY

1

1
1
1
1
1
1

16

1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

1
1
1
1

HB20MN

PART NO.

MB10006E

MB09002E
MB11004E
ML086-02
ML087-02
ML084-02E
ML088-01
ML069-02
NV2020-14
ML073-01
MB16002
ML029-01
NRV81FI-3
96-4Z
ML079-01
MB40016
MB40018
MB40019
MB40020
MB40021
ML096-01
MB40017
NBB20-000M1
ML101-01
ML091-03
ML103-01
ML104-01
ND1103x800x9
ND0803-8
ND0807-B2
ML105-01
6170-5Z
ML057-09
ML083-03
ML060-01

MB28001
ML070-15E
ML071-01
ML072-01

Summary of Contents for HB20MN-1

Page 1: ...upplier 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 gas supplier ImportantSafetyInformation 2 Product Features 3 Proper Ventilation FreshAir 4 Installation 6 OperatingYour Heater 10 Cleaning Maintenance 13 Trouble Shooting 14 Specifications 17 Parts List 19 WarrantyInformation 22...

Page 2: ...s Surface of heater becomes 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 shuting down Allow surface to cool before touching Carefully supervise young children when they are in the same room with heater Make sure grill guard is in place before running heater 8 Turn heater off before using furn...

Page 3: ...eater 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 QUALIFIED INSTALLING AGENCY Installation and replacement of gas piping gas uti lization equipment or accessories and repair and servicing of equipment shall be performed only by a qualified agency The term qual...

Page 4: ...tion air by one of the methods described in the National Fuel Gas Code ANS Z223 1 Section 5 3 or applicable local codes 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 l you must provide additional fresh air Unusually tight construction is defined as constructio...

Page 5: ...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 s...

Page 6: ...t shutoff valve ground joint union test gauge connection sediment trap tee joint pipe wrench A CSA AGA design certified equip ment shutoff valve with 1 8 NPT tap is an acceptable alternative to test gauge connection Purchase the CSA AGA design certified equip ment shutoff valve from your dealer LOCATING HEATER This heater is designed to be mounted on a wall You can locate heater on floor away from...

Page 7: ...ard then down see Figure 7 Methods For Attaching Mounting Bracket To Wall Only use last hole on each end of mounting bracket to attach bracket to wall These two holes are 16 inches apart from center Attach mounting bracket to wall o n l y i n o n e o f t w o w a y s 1 Attaching to wall stud 2 Attaching to wall anchor Attaching To Wall Stud This method provides the strongest hold Insert mounting sc...

Page 8: ...lace mounting bracket onto wall Line up last hole on each end of bracket with wall anchors 6 Insert mounting screws through bracket and into wall anchors 7 Tighten screws until mounting bracket is firmly fastened to wall Placing Heater On Mounting Bracket 1 Locate two horizontal slots on back panel of heater see Figure 11 2 Place heater onto mounting bracket Slide horizontal slots onto stand out t...

Page 9: ...union and plugged 1 8 NPT tap Locate NPT tap within reach for test gauge hook up NPT tap must be upstream from heater see Figure 13 A CSA AGA design certified equipment shutoff valve with 1 8 NPT tap is an acceptable alternative to test gauge connection Purchase the CSA AGA design certified equipment shutoff valve from your dealer IMPORTANT Install an equipment shutoff valve in an accessible locat...

Page 10: ...om equipment shutoff valve to control valve see Figure 15 Apply mixture of liquid soap and water to gas joints Bubbles forming show a leak 5 Correct all leaks at once 6 Light heater see Operating Heater pages 10 and 11 for thermostat models or page 12 for non thermostat models Check the rest of the intemal joints for leaks 7 Turn off heater see To Turn Off Gas to Appliance page 11 for thermostat m...

Page 11: ...e lighting pilot again 8 Turn control knob counterclockwise to desired heating Level The main burner should light Set control knob to any heat level between HI and LO THERMOSTAT CONTROL OPERATION The thermostatic control used on these models differs from standard thermostats Standard thermostats simply turn on and off the burner The thermostat used on this heater senses the room temperature The th...

Page 12: ... press in control turn control knob clockwise to the PILOT position Figure 18 Control Knob In The OFF Position Figure 19 Pilot 1 STOP Read the safety information on the side of heater 2 Make sure equipment shutoff valve is fully open 3 Push in control knob slightly and turn clockwise to the OFF position see Figure 18 4 Wait five minutes to clear out any gas Then smell for gas including near the fl...

Page 13: ...the pilot flame comes out of the pilot assembly see Figure 24 With the unit off lightly blow air through the air inlet hole You may blow through a drinking straw if com pressed air is not available Figure 24 Pilot Inlet Air Hole CLEANING HEATER CABINET Air Passageways Use a vacuum cleaner or pressurized air to clean Exterior Use a soft cloth dampened with a mild soap and water mixture Wipe the cab...

Page 14: ...pment shutoff valve is not fully open 4 Thermocouple connection loose at control valve 5 Pilot flame is not touching thermo couple This allows thermocouple to cool causing pilot flame to go out This problem could be caused by one or both of the following A Low gas pressure B Dirty or partially clogged ODS pilot 6 Thermocouple damaged 7 Control valve damaged REMEDY 1 Replace ignitor 2 Replace ignit...

Page 15: ... expanding while heating or contracting while cooling 1 When heated the vapors from furniture polish wax carpet cleaners etc turn into white powder residue REMEDY 1 Clean burner orifice see Cleaning and Maintenance Page 13 or replace burner orifice 2 Replace burner orifice 3 Contact local natural gas company 1 Contact local natural gas company 2 Clean burner see Cleaning and Maintenance Page 13 or...

Page 16: ... from paint hair spray glues etc See IMPORTANT statement above 2 G a s l e a k S e e W a r n i n g statement at top of page 1 Not enough fresh air is available 2 Low line pressure 3 ODS pilot is partially clogged 1 Gas leak See Warning Statement at top of page 2 Control valve defective 1 Foreign matter between control valve and burner 2 Gas leak See Warning Statement at top of page 1 Metal expandi...

Page 17: ...ies from your local dealer If they can not supply these accessories contact HearthRite for information You can also write to the address listed on the front of this manual OptionalFANKit The optional fan kit part HAB01 fits all models noted in this manual The fan has 3 settings ON OFF Auto The thermostatically controlled HAB01 improves heater efficiency and in cludes installation and operating ins...

Page 18: ...1 8 ILLUSTRATED PARTS BREAKDOWN THERMOSTAT MODELS HB20TN HB30TN ...

Page 19: ...etainer Lower Glass Retainer Self Tapping Screw Thermostat Valve Assembly Screws Thermosstat Valve Base Assembly Ignitor Assembly Ignitor Line Pressure Regulator Washer Self Locking Screw Main Inlet Tube Assembly ODS Line Assembly Burner inlet Tube Assembly Burner Burner Connector Injector Left Burner Support Bracket Right Burner Support Bracket ODS Thermocouple Ignitor Electrode ODS Upper Deflect...

Page 20: ...2 0 ILLUSTRATED PARTS BREAKDOWN NON THERMOSTAT MODELS HB20MN HB30MN ...

Page 21: ...f Tapping Screw Control valve Ignitor Line Control Knob Assembly Control Valve Fixed Nut Pressure Regulator Washer Self Locking Screw Main Inlet Tube Assembly ODS Line Assembly Lower Gas Outline Tube Assembly Medium Gas Outline Tube Assembly High Gas Outline Tube Assembly 4 Way Connector Burner Inlet Tube Assembly Burner Burner Connector Injector Left Burner Support Bracket Right Burner Support Br...

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