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32

100352

SERVICE

PROCEDURES

Continued

Changing Burner Orifice

1. Shut off gas supply to

heater.

2. Remove lower front

access panel on heater.

3. Disconnect burner tube

from orifice holder (see
Figure 24).

4. Remove orifice holder

from burner (see Figure
24).

5. Use socket or open-end

wrench to remove the old
orifice from the orifice
holder.

6. Clean and replace orifice,

or replace with new
orifice.

7. Turn on gas to heater and

check for gas leaks. Apply
a mixture of liquid soap
and water to all joints.
Bubbles forming show a
leak. Correct all leaks at
once.

8. Replace lower front

access panel.

Figure 24 - Orifice Location (35,000 BTU/Hr Burner Shown)

Burner
Tube

Orifice
Holder

Orifice

Burner

Figure 25 - Orifice

Summary of Contents for Comfort Glow CGB35P

Page 1: ...iatelycallyourgassupplierfrom 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 per formed by a...

Page 2: ...rmanent Fresh Air Ventilation 18 Example 2 Locating Heater in Confined Closed Area 19 Ventilating Confined Area 19 Operating Heater 20 For Your Safety Read Before Lighting 20 Lighting Instructions 20...

Page 3: ...all heater and venting system 2 Use only propane gas Do not convert heater to use different fuel type 3 Do not place propane supply tank s inside any structure Locate propane supply tank s outdoors 4...

Page 4: ...young children when they are in the same room as heater Heater will remain hot for a time after shutdown Let surface cool before touching 11 Do not use heater as a cooking device 12 Do not alter heat...

Page 5: ...PRODUCT IDENTIFICATION Lower Front Access Panel Figure 1 Vented Propane Gas Heater Draft Hood Outlet for Venting System Control Valve Figure 2 Vented Propane Gas Heater Rear View Ignitor Button Contr...

Page 6: ...an also result in lower gas bills INSTALLING HEATER WARNING ICON G 001 WARNING A qualified service person must install heater and venting system Have them inspect heater before use and at least annual...

Page 7: ...an wood flooring Place heater on metal or wood panel extending the full width and depth of heater as a fireplace insert in high traffic areas in windy or drafty areas WARNING ICON G 001 CAUTION If you...

Page 8: ...d you use flues classified as prefabricated or masonry all fuel chimney or type B vent See Vent Types page 10 If using old vent check vent for soot creosote and loose particles If vent is damaged repa...

Page 9: ...ever extend vent pipe horizontally through outside wall and terminate You must connect a vertical run of vent pipe to the horizontal run The vertical run must be at least 25 longer than the horizontal...

Page 10: ...walled pipe Clearances to combustible construction must be in accordance with the listing of the particular type B vent Type B vents are currently listed as B 1 B 1 1 2 and B 2 The illustrations belo...

Page 11: ...Regulator with Vent Pointing Down CAUTION Use only new black iron or steel pipe Copper tubing may be used in certain areas Check your local codes Use pipe that is 1 2 in diameter or greater to allow p...

Page 12: ...ion of inlet gas line From External Regulator 11 W C Min to 14 W C Max From External Regulator 11 W C Min to 14 W C Max Pipe Nipple Tee Joint Cap Manual Shutoff Valve Ground Joint Union Tee Joint 1 8...

Page 13: ...ne supply tank to manual shutoff valve Apply mixture of liquid soap and water to gas joints Bubbles forming show a leak 4 Correct all leaks at once Pressure Testing Heater Gas Connections 1 Open manua...

Page 14: ...ave sharp edges Handle with care WARNING ICON G 001 CAUTION Do not operate heater without glass panels installed Operating heater without glass panels will damage front of heater due to excess tempera...

Page 15: ...hnical Service Department at 1 800 323 5190 for a replacement glass panel 8 Repeat steps 4 through 7 for all glass panels 9 Reinstall glass guard Reinstall lower front access panel of heater WARNING I...

Page 16: ...ust fans fireplaces clothes dryers and fuel burning appliances draw air from the house to operate This heater is a fuel burning appliance It uses air from inside the house for combustion It also uses...

Page 17: ...2 If you have a fireplace start a fire Build fire until flames are burning strongly 3 Turn on all exhaust fans These include exhaust fans for kitchen bathroom water heaters gas or electric etc 4 Turn...

Page 18: ...ep window or door open while using fire place Supply fresh outside air by a permanent method as soon as possible If spillage still occurs leave window or door open and go to next step C If you have ki...

Page 19: ...for each 1000 BTU Hr input rating of all appliances in the area cubic feet equals length x width x height of area Include adjoining rooms only if there are no doors between the rooms If you install t...

Page 20: ...nician to inspect the appliance and to replace any part of the control system and any gas control which has been under water FOR YOUR SAFETY READ BEFORE LIGHTING NOTICE If operating heater for the fir...

Page 21: ...pressing ignitor button until pilot lights Note If pilot does not stay lit refer to Troubleshooting pages 26 through 29 Also contact a qualified service person or gas supplier for repairs Until repair...

Page 22: ...h Hold match to pilot until pilot lights 5 Follow steps 8 through 11 under Lighting Instructions page 21 OPERATING HEATER Continued TO TURN OFF GAS TO APPLIANCE Shutting Off Heater 1 Fully depress con...

Page 23: ...Figure 19 turn heater off see To Turn Off Gas to Appliance page 22 contact a qualified service person BURNER FLAME PATTERN Note To view burner flame look through front glass of heater Figure 20 page...

Page 24: ...ellow Flame Flame Lifting Off of Burner Figure 21 Incorrect Burner Flame Patterns Figure 20 Correct Burner Flame Pattern If burner flame pattern is incorrect as shown in Figure 21 turn heater off see...

Page 25: ...clean BURNER ORIFICE Use a vacuum cleaner compressed air or small soft bristled brush to clean You can also use a tooth pick to clean orifice Do not enlarge or damage orifice hole PILOT AND BURNER FLA...

Page 26: ...oose ignitor cable 9 Bad piezo ignitor 1 Gas supply turned off or manual shutoff valve closed 2 Control knob not in PI LOT position 3 Control knob not pressed in while in PILOT posi tion 4 Air in gas...

Page 27: ...diameter is too small 4 Inlet gas pressure is too low 1 Manifoldpressureistoo low 2 Burner orifice is clogged REMEDY 1 Fully open manual shut off valve 2 Press in control knob fully 3 After pilot lig...

Page 28: ...ied 1 Air in gas line 2 Air passageways on heater blocked 3 Dirty or partially clogged burner orifice REMEDY 1 Clean burner see Clean ing and Maintenance page 25 or replace burner orifice 2 Replace bu...

Page 29: ...If damaged or blocked re pair If venting system is OK have qualified ser vice person replace vent safety switch wire har ness or thermocouple in terrupter 2 Contactlocalpropanegas company 3 Clean pilo...

Page 30: ...bracket see Figure 22 9 Remove assembly from the rear of heater 10 To reinstall reverse above steps Turn on gas to heater and check for gas leaks Apply a mixture of liquid soap and water to all joint...

Page 31: ...burner to the right for clearance Rotate burner 90 and remove burner through lower front access opening 7 To reinstall reverse above steps Turn on gas to heater and check for gas leaks Apply a mixtur...

Page 32: ...4 5 Use socket or open end wrench to remove the old orifice from the orifice holder 6 Clean and replace orifice or replace with new orifice 7 Turn on gas to heater and check for gas leaks Apply a mixt...

Page 33: ...16 Shipping Weight pounds 78 98 Flue Vent Size 4 dia 4 dia Orifice Size 52 drill 0635 46 drill 081 SPECIFICATIONS Note These heaters are certified for elevations of 0 4500 feet above sea level For ele...

Page 34: ...ilson Grand Rapids MI 49504 616 791 4760 800 446 1446 Washer Equipment Co 1715 Main Street Kansas City MO 64108 KS MO AR 816 842 3911 Controls Inc 6820 Glenwood Ave Raleigh NC 27612 NC SC VA MD 919 78...

Page 35: ...ed with blower Purchase these heater accessories from your local dealer If they can not supply these accessories either contact your nearest Parts Central see page 34 or call DESA International s Part...

Page 36: ...36 100352 ILLUSTRATED PARTS LIST Burner Assembly 3 4 8 10 11 1 2 5 6 7 9 12 13 14 15 16 17 18 19 28 27 7 35 Model 6 50 Model 11 24 2 20 21 23 26 22 17 16 4 24 24 1 24 3 24 4 25 7...

Page 37: ...18 x 3 8 3 M11084 38 Screw 8 18 x 3 8 2 12 099211 01 099211 01 Screw 10 16 x 2 1 2 2 13 100207 02 100207 02 Control Valve 1 14 098265 01 098265 01 Elbow 1 15 098936 02 098936 02 Thermocouple Interrup...

Page 38: ...16 x 3 8 2 3 100053 02BR 100053 01BR Hearth Assembly 1 includes items 5 7 4 100204 02 100204 01 Top Panel 1 5 098304 02 098304 02 Screw 6 20 x 3 8 2 6 M11084 26 Screw 10 16 x 3 8 17 M11084 26 Screw 1...

Page 39: ...________ _________________________________________________________________ _________________________________________________________________ ___________________________________________________________...

Page 40: ...ibutor dealer or other person whomsoever DESA WILL NOT BE RESPONSIBLE FOR 1 Normal maintenance as outlined in the owner s operation and installation manual including cleaning of component parts such a...

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