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8

CORAYVAC

®

HEATING SYSTEMS

Mixing Chamber

Valve

Regulator

Plug

Orifice

Screw

Air Shutter

Fuel Conversion Instructions

FIGURE 3. CORAYVAC

®

Gas Conversion

WARNING

®

Use only genuine ROBERTS GORDON   replacement parts.

Use of parts not specified by Roberts-Gordon voids warranty.

Failure to follow these instructions will result in death, injury

or property damage.

f.

When converting the CRV-B/E-12 or CRV-B/E-12A, the air shut-

ter must be changed: Using a 9/64" hex key, remove the screw

and shutter and replace with the new one supplied with the kit as

listed on 

Page 7, Table 3.

Step 1
(continued)

Summary of Contents for CoRayVac B-10

Page 1: ... or property damage Read the installation operation and service manual thoroughly before installing or servicing this equipment DO NOT store or use petrol or other flammable vapors and liquids in the vicinity of this or any other appliance FOR YOUR SAFETY If you smell gas 1 Open windows 2 DO NOT try to light any appliance 3 DO NOT use electrical switches 4 DO NOT use any telephone in your building...

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Page 3: ... General Instructions Precautions 6 Step 1 TABLE 3 7 FIGURE 3 8 Step 2 9 Step 3 FIGURE 4 10 Step 4 10 Step 5 FIGURE 5 11 FIGURE 6 12 CLEARANCES TO COMBUSTIBLES 13 FIGURES 7 8 9 14 FIGURES 10 11 12 15 FIGURES 13 14 15 16 OPERATION AND MAINTENANCE 17 Sequence of Operation 17 Pre Season Maintenance and Annual Inspection 17 Remember to Check 18 LIMITED WARRANTY 20 Printed in U S A 2000 All rights rese...

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Page 5: ...ation as provided in these instructions For additional copies of the CORAYVAC Installation Operation and Service Manual please contact Roberts Gordon Questions Comments or Suggestions Please direct any questions comments or suggestions to In the United States Roberts Gordon 1250 William Street P O Box 44 Buffalo New York 14240 0044 USA Telephone 716 852 4400 Toll Free 800 828 7450 Fax 716 852 0854...

Page 6: ...RNING Service and annual inspection must be done by a contractor qualified in the installation and service of gas fired heating equipment Failure to follow these instructions can result in death injury or property damage WARNING Use only genuine ROBERTS GORDON conversion kits Failure to follow these instructions can result in death injury or property damage The conversion shall be carried out in a...

Page 7: ...atch the corresponding model number Failure to follow these instructions can result in death injury or property damage Model Kit Number CRV B E Orifice P N Shutter Label CRVB04NP 4 02791039 91039400 CRVB06NP 6 02791030 91039400 CRVB08NP 8 02791026 91039400 CRVB09NP 9 02791019 91039400 CRVB10NP 10 02791021 91039400 CRVB12NP 12 02791012 02753212 91039400 FIGURE 1 Natural to Propane Kit Components Al...

Page 8: ...l Conversion Kits Configuration Gas Conversion Label P N 91039400 For Propane to Natural Conversions Only WARNING Propane to Natural Conversion Check Conversion Kit Part Number before proceeding Kit Part Number must match the corresponding model number Failure to follow these instructions can result in death injury or property damage Orifice P N see Table below FIGURE 2 Propane to Natural Conversi...

Page 9: ... any service or maintenance Failure to follow these instructions can result in death injury or property damage Explosion Hazard Turn off the gas supply to the heater before perform ing any service or mainte nance Failure to follow these instructions can result in death injury or property damage WARNING Warnings ...

Page 10: ... natural gas determine which regulator is being used in your burner see below The smaller Maxitrol R 400 regulator was in use beginning in 1991 and ending in March 1996 and was replaced exclusive ly by the R 500 at this time The R 400 measures approxi mately 2 x 2 x 3 the R 500 measures 3 x 3 x 4 1 2 Each is clearly marked with the model number See Page 8 Figure 3 for regulator location Use burner...

Page 11: ...e plug in the mixing chamber with a 7 16 open end wrench and set aside for replacement d Remove and discard the gas orifice using a 1 4 hex key e Apply a small amount of pipe sealant to the threads of the replacement orifice included with this kit See Page 7 Table 3 to verify orifice color Be aware that over application of sealant may cause blockage of the orifice Insert and tighten the replacemen...

Page 12: ...N replacement parts Use of parts not specified by Roberts Gordon voids warranty Failure to follow these instructions will result in death injury or property damage f When converting the CRV B E 12 or CRV B E 12A the air shut ter must be changed Using a 9 64 hex key remove the screw and shutter and replace with the new one supplied with the kit as listed on Page 7 Table 3 Step 1 continued ...

Page 13: ... screws f Do Not Adjust The Zero Regulator NOTE The manifold pressure as listed on the serial plate and on the gas conversion plate Page 10 Figure 4 for CORAYVAC is always 0 7 w c This is a nominal figure derived using a CRV B 10 Natural Gas unit under laboratory conditions The actual manifold pressure will vary from 0 w c to 1 5 w c or more depending on the system configuration system vacuum and ...

Page 14: ...be attached to burner after conversion Failure to follow these instructions can result in death injury or property damage WARNING For Model No Enter Orifice Size for Propane 4 39 6 30 8 26 9 19 10 21 12a 12 Enter following data for Natural to Propane Conversions Enter following data for Propane to Natural Conversions From Serial Plate Natural Propane From Serial Plate For Model No Enter Orifice Si...

Page 15: ... Label Placement Setting the Vacuum a Set thermostats above room temperature See that all burners are operating properly b Allow at least one half hour operation for temperature to normalize then check system vacuum balance Vacuum can be measured by connecting a manometer to the end vent as shown on Page 12 Figure 6 Normal end vent vacuum should be set at approximately 2 1 2 w c hot Vacuum adjustm...

Page 16: ...t equal vacuum read ings Be sure to lock all dampers securely after adjustment c Reset thermostats to desired room temperature d If heat is not required turn off main switch and close main gas valve Manometer 6 5 4 3 2 1 0 1 2 3 4 5 6 6 5 4 3 2 1 0 1 2 3 4 5 6 Remove button plug and insert tubing about 6 152mm Replace plug after test End Combustion Chamber Approximate reading after adjusting dampe...

Page 17: ...ing height to maintain required clearances from the heater to the combustibles Signs must be posted adjacent to the heater thermostat In the absence of a thermostat signs must be posted in a conspicuous location Consult local Fire Marshal Fire Insurance Carrier or other authorities for approval of proposed installation when there is a possi bility of exposure to combustible airborne materials or v...

Page 18: ...22 51 CRV B 6 10 51 122 51 CRV B 8 10 51 122 51 CRV B 9 10 91 152 91 CRV B 10 10 91 152 91 CRV B 12 10 91 152 91 CRV B 12A 10 91 152 91 14 CORAYVAC HEATING SYSTEMS NOTE 1 All dimensions are from the tube surface 2 Clearances B C and D can be reduced by 50 after 25 7 m of tubing downstream from where the burner and transition tube connect 3 For Brooder Clearances use United States clearances 4 indi...

Page 19: ...RV B 6 10 61 122 61 CRV B 8 10 61 122 61 CRV B 9 10 91 122 91 CRV B 10 10 91 122 91 CRV B 12 10 91 122 91 CRV B 12A 10 91 122 91 ROBERTS GORDON NOTE 1 All dimensions are from the tube surface 2 Clearances B C and D can be reduced by 50 after 25 7 m of tubing downstream from where the burner and transition tube connect 3 For Brooder Clearances use United States clearances 4 indicates an unapproved ...

Page 20: ... D CRV B 2 10 30 122 30 CRV B 4 10 30 122 30 CRV B 6 10 30 122 30 CRV B 8 10 30 122 30 CRV B 9 10 46 142 46 CRV B 10 10 46 142 46 CRV B 12 10 46 142 46 CRV B 12A 10 46 142 46 16 CORAYVAC HEATING SYSTEMS NOTE 1 All dimensions are from the tube surface 2 Clearances B C and D can be reduced by 50 after 25 7 m of tubing downstream from where the burner and transition tube connect 3 For Brooder Clearan...

Page 21: ...cycle required Pre Season Maintenance and Annual Inspection To ensure your safety and years of trouble free operation of the heater annual inspec tions by a contractor qualified in the installa tion and service of gas fired heating equip ment and owner are essential Before every heating season a contractor qualified in the installation and service of gas fired heating equipment must perform a thor...

Page 22: ...lles included with select models Immediately remove objects in violation of the clearances to combustibles Make sure there is no dirt sagging cracking or distortion Do not operate if there is sagging cracking or distortion Make sure reflectors are correctly overlapped Clean outside surface with a damp cloth Venting must be intact Using a flashlight look for obstructions cracks on the pipe gaps in ...

Page 23: ... and secured in place if necessary Decorative grille only Make sure shield is installed correctly and secured in place if necessary Decorative grille only With pump operating check for excessive vibration or noise Vibration is usually a sign that the impeller is out of balance Turn off the system insure power is shut off and remove the inlet plate Check the shaft seal and replace if worn or missin...

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Page 25: ...professional Should you need replacement parts or have additional questions call or write Roberts Gordon U S A 1250 William Street P O Box 44 Buffalo New York 14240 0044 Telephone 716 852 4400 Fax 716 852 0854 Canada 241 South Service Road West Grimsby Ontario L3M 1Y7 Telephone 905 945 5403 Fax 905 945 0511 On the web at www rg inc com Roberts Gordon s liability and your exclusive reme dy under th...

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