Master Gas Heater Owner'S Operation And Installation Manual Download Page 16

16

101048

Installing Bottom Mounting Screws

1. Locate two bottom mounting holes. These holes are near bottom on back panel

of heater (see Figure 17).

2. Mark screw locations on wall.
3. Remove heater from mounting bracket.
4. If installing bottom mounting screws into hollow or solid wall, install wall anchors.

Follow steps 1 through 4 under Attaching To Wall Anchor Method, page 15.
If installing bottom mounting screw into wall stud, drill holes at marked loca-
tions using 9/64" drill bit.

5. Replace heater onto mounting bracket.
6. Place spacers between bottom mounting holes and wall anchor or drilled hole.
7. Hold spacer in place with one hand. With other hand, insert mounting screw

through bottom mounting hole and spacer. Place tip of screw in opening of wall
anchor or drilled hole.

8. Tighten both screws until heater is firmly secured to wall. Do not over tighten.

Note:

 

Do not replace front panel at this time. Replace front panel after making

gas connections and checking for leaks (see pages 21-23).

INSTALLATION

Continued

B. MOUNTING HEATER ON OPTIONAL HEARTH BASE

Tools needed: #2 Phillips screwdriver, slotted screwdriver, and electric drill (if

securing base to floor)

The optional hearth base kit includes the following:

Hearth Base

4 Wood Screws

4 Sheet Metal Screws

Brass Base Trim

Hearth Insert

4 Anchors

Laminate Sheet

2 Brass Screws

Note:

 If securing hearth base to floor, follow instructions under Securing Hearth

Base to Floor, below. If not securing hearth base to floor, proceed to Mounting
Heater to Optional Hearth Base, 
page 17.

Securing Hearth Base to Floor

1. Position hearth base in desired location. Mark holes for drilling (See Figure 18,

page 17). Remove hearth base.

2. For carpeted floor, make a small cut with a sharp knife at marked locations

before drilling.
If securing to a wood floor, drill a 3/4" deep hole using a 1/8" diameter drill bit.
Do not use anchors in wood floors.
If securing to a concrete floor, drill a 1 3/8" deep hole using a 1/4" diameter
concrete drill bit. Completely insert anchors into each hole.

3. Mount heater to hearth base following steps under Mounting Heater to Optional

Hearth Base, page 17. After mounting heater, position heater and hearth base
over drilled holes. With slotted screwdriver, secure hearth base to floor with
four wood screws.

Figure 17 - Installing Bottom Mounting Screws

Summary of Contents for Gas Heater

Page 1: ...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 D...

Page 2: ...eath from burns fire explosion electrical shock and carbon monoxide poisoning WARNING ICON G 001 DANGER Carbon monoxide poisoning may lead to death SAFETY INFORMATION Carbon Monoxide Poisoning Early s...

Page 3: ...system The ODS shuts down the heater if not enough fresh air is available See Fresh Air for Combus tion and Ventilation pages 8 through 11 7 Never run heater in small closed room Open door into next...

Page 4: ...e m kg o dk irln fg pd fA SD FK IG LF JI als kd idk oe m kg o dk irln fg pd f AS DF KI GL FJ I als kd idk oe m kg o dk irln fg pd fA SD FK IG LF JI als kd idk oe m kg o dk irln fg pd f AS DF KI GL FJ...

Page 5: ...Note For easier installation lay heater on its back 1 Remove log from inside top of heater Discard protective packaging 2 Attach ignitor cable to piezo ignitor see Figure 3 Piezo Ignitor Ignitor Cable...

Page 6: ...Screw Figure 4 Assembling Heater Heater Cabinet Nut Attaching Brass Front Trim to Front Panel 1 Locate brass front trim in brass trim package 2 Slide the head of two truss head screws from hardware pa...

Page 7: ...Figure 6 6 While firmly holding edges of brass trim together tighten both set screws on the adjusting plate with slotted screwdriver 7 Repeat steps 1 through 6 for other side Side Brass Trim Top Brass...

Page 8: ...ction 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...

Page 9: ...ce logs ___________________ BTU Hr Other gas appliances ___________________ BTU Hr Total ___________________ BTU Hr Example Gas water heater 40 000 BTU Hr Vent free heater 18 000 BTU Hr Total 58 000 B...

Page 10: ...he floor on the wall connecting the two spaces see options 1 and 2 Figure 8 You can also remove door into adjoining room see option 3 Figure 8 WARNING ICON G 001 WARNING Rework worksheet adding the sp...

Page 11: ...en to the outdoors These spaces include attics and crawl spaces Follow the National Fuel Gas Code NFPA 54 ANSI Z223 1 Section 5 3 Air for Combustion and Ventilation for required size of ventilation gr...

Page 12: ...ified in this manual Purchase the optional mantel and hearth base from your dealer See Accessories pages 34 and 35 The heater may also be mounted on a wall You cannot use optional mantel if mounting h...

Page 13: ...lot opening in bottom of heater 2 Place clamp on thermostat sensing bulb as shown in Figure 11 Clamp is pro vided in hardware package 3 Snap clamp into upper mounting hole as shown in Figure 11 Mounti...

Page 14: ...This method provides the strongest hold Insert mounting screws through mounting bracket and into wall studs Attaching to wall anchor This method allows you to attach mounting bracket to hollow walls...

Page 15: ...stened to wall Placing Heater On Mounting Bracket 1 Locate two horizontal slots on back panel of heater 2 Place heater onto mounting bracket Slide horizontal slots onto stand out tabs on mounting brac...

Page 16: ...ASE Tools needed 2 Phillips screwdriver slotted screwdriver and electric drill if securing base to floor The optional hearth base kit includes the following Hearth Base 4 Wood Screws 4 Sheet Metal Scr...

Page 17: ...Continued Base Bottom of Heater Shipping Screw Laminate Sheet Hearth Insert Figure 19 Placing Hearth Insert on Heater Base and Attaching Brass Base Trim Screw Brass Base Trim Mounting Holes Sheet Meta...

Page 18: ...nd GM700F GM701U mantels with this heater Do not use models GMF800 A GMU801 A GM900F GM901U and GM700F GM701U mantels with any other product Before installing mantel to heater the heater must be mount...

Page 19: ...ert drill bit into pre drilled holes in mantel and drill through heater hearth base Make sure the drill bit does not damage any gas plumbing lines inside hearth base 3 Locate two 2 screws from hardwar...

Page 20: ...reduce incoming gas pressure to between 11 and 14 inches of water If you do not reduce incoming gas pressure heater regulator damage could occur Install external regulator with the vent pointing down...

Page 21: ...eptable alternative to test gauge connection Purchase the optional A G A design certified manual shutoff valve from your dealer See Accessories page 34 Pressure Regulator 1 2 NPT Pipe Nipple Ground Un...

Page 22: ...as joints Bubbles forming show a leak 4 Correct all leaks at once PRESSURE TESTING HEATER GAS CONNECTIONS 1 Open manual shutoff valve see Figure 26 2 Open propane supply tank valve 3 Make sure control...

Page 23: ...appliance area for gas Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch a...

Page 24: ...pilot The pilot is attached to the front of burner If needed keep pressing ignitor button until pilot lights Note If pilot does not stay lit refer to Troubleshooting pages 28 through 31 Also contact a...

Page 25: ...t temperature If so the burner will shut off The burner will cycle back on when room temperature drops below the set temperature The control knob can be set to any heat level between HI and LO Note Th...

Page 26: ...T FLAME PATTERN Figure 30 shows a correct pilot flame pattern Figure 31 shows an incorrect pilot flame pattern The incorrect pilot flame is not touching the thermocouple This will cause the thermocoup...

Page 27: ...r the heater and burn causing brief patches of orange flame If burner flame pattern is incorrect as shown in Figure 33 turn heater off see To Turn Off Gas to Appliance page 25 see Troubleshooting page...

Page 28: ...cessive lint from carpeting bedding material etc POSSIBLE CAUSE 1 Ignitor electrode posi tioned wrong 2 Ignitor electrode broken 3 Ignitor electrode not con nected to ignitor cable 4 Ignitor cable pin...

Page 29: ...thermocouple 8 Replace control valve OBSERVED PROBLEM When ignitor button is pressed there is spark at ODS pilot but no ignition ODS pilot lights but flame goes out when control knob is released POSS...

Page 30: ...geways on heater blocked 4 Dirty or partially clogged burner orifice REMEDY 1 Clean burner see Cleaning and Mainte nance page 28 or replace burner orifice 2 Replace burner orifice 3 Contact local prop...

Page 31: ...e 2 Low line pressure 3 ODS pilot is partially clogged 1 Gas leak See Warn ing statement at top of page 2 Control valve defective 1 Foreign matter be tween control valve and burner 2 Gas leak See Warn...

Page 32: ...rnational s Technical Service Department at 1 800 323 5190 When calling DESA International have ready your name your address model number of your heater how heater was malfunctioning type of gas used...

Page 33: ...er MI 49504 616 791 4760 1 800 446 1446 Washer Equipment Co 1715 Main Street Kansas City MO 64108 KS MO AR 816 842 3911 East Coast Energy Products 833 Broadway W Long Branch NJ 07764 908 870 8809 1 80...

Page 34: ...GA5010 Manual shutoff valve with 1 8 NPT tap FAN KIT GA3100 GA2100A Provides better heat distribution Makes heater more efficient Complete installation and operating instruc tions included HEARTH BASE...

Page 35: ...M900F For use with heater and hearth base Sturdy hardwood construc tion embellished with fluted sides raised medallions and carved rope trim Available in a walnut finish or an unfinished hardwood read...

Page 36: ...36 101048 12 1 12 2 1 2 9 10 10 11 12 13 14 15 16 17 19 20 21 22 23 24 25 26 27 28 8 6 7 18 1 3 5 4 30 29 1...

Page 37: ...14 098517 01 3 16 Pilot Tubing 1 15 098251 03 Injector 1 16 098250 01 Injector Holder 1 17 098867 06 Pressure Regulator 1 18 099553 01 Pilot Shield 1 19 098299 02 3 8 Outlet Burner Tubing 1 20 098297...

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Page 40: ...cal codes and instructions furnished with the unit This warranty does not apply to parts that are not in original condition because of normal wear and tear or parts that fail or become damaged as a re...

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