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6

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CAUTION: The available gas pressure should be within the limits shown in

SPECIFICATIONS section. Excessive pressure may damage electric valves, regulators
and manual valves. If the supply pressure exceeds the 14.0"W.C. maximum, a suitable
high pressure regulator must be installed between the Main Manual Shut-Off Valve and
burner shut-off valve as shown in Figure 5.

Part 1

Installation 

Continued

Part 1 Installation

VI

Piping

Capacities shown are for a
total pressure drop of
0.3"W.C. For 0.5"W.C.
pressure drop, multiply
capacity shown by 1.3 .
Propane capacities shown
are for a total pressure drop
of 0.5” W.C. For higher
permissible pressure drops,
consult your gas supplier.

Table 2:

Schedule 40 NPT

Pipe-Capacity Chart

10

200

590

400

1075

900

40

275

200

500

450

1040

650

75

190

150

360

325

750

475

20

150

400

275

730

600

900

Pipe
Size

3/4

3/4

1

1

1 1/4

1 1/4

1 1/2

1 1/2

Natural

Propane

Natural

Propane

Natural

Propane

Natural

Propane

100

160

300

275

630

400

975

Approximate Capacity -MBH

Pipe Length

Type

of Gas

V

Electrical

Continued

Wiring Diagram 

for RE6850 - 120V

Summary of Contents for economite RE6700B

Page 1: ...urners BURNER MODEL BILL OF MAT L NUMBER SERIAL NUMBER WIRING DIAGRAM FOR SERVICE CONTACT Name Address Phone Date of Installation 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 phone you...

Page 2: ...r detailed ventilation requirements refer to standard CAN 1 B149 1 or 2 and or local codes ____________________________________________ Part 1 Installation 2 I Ventilation The ECONOMITE Models RE6700B RE6850 and RE6850B burners with intermittent spark ignited pilot are adaptable to most gas utilization equipment including gravity and forced circulation furnaces boilers and hot water heaters They a...

Page 3: ...D IN ORIENTATION SHOWN IN FIGURES 1 AND 2 ANY OTHER MOUNTINGS MAY CAUSE A DANGEROUS CONDITION AND WILL VOID BURNER WARRANTY AND AGENCY APPROVALS NON STANDARD ARRANGEMENTS MAY BE AVAILABLE FOR SOME MODELS CONSULT FACTORY FOR DETAILS IF REQUIRED Before permanently setting the burner in place check that the main burner and pilot ports are free of foreign materials and also that the spark electrode as...

Page 4: ...ysical damage and separation of joints A draft hood or a barometric draft regulator shall be installed in the same room or enclosure as the equipment in such a manner as to prevent any difference in the pressure between the hood or regulator and the combustion air supply see Figures 3 and 4 In no case shall the relief opening of the draft hood or barometric draft regulator be located at a point lo...

Page 5: ... disconnect switch and a minimum 10 Amp breaker The frame of the burner should be well grounded Normally the piping and or electric conduit will provide sufficient grounding However a ground lug is located in control box for positive grounding where insulated pipe couplings are used or where any doubt exists regarding grounding sufficiency Confirm that the polarity is correct hot wire to strip ter...

Page 6: ...lation VI Piping Capacities shown are for a total pressure drop of 0 3 W C For 0 5 W C pressure drop multiply capacity shown by 1 3 Propane capacities shown are for a total pressure drop of 0 5 W C For higher permissible pressure drops consult your gas supplier Table 2 Schedule 40 NPT Pipe Capacity Chart 10 200 590 400 1075 900 40 275 200 500 450 1040 650 75 190 150 360 325 750 475 20 150 400 275 ...

Page 7: ...ure 14 0 W C max components both main and pilot be disconnected during testing Exposing low pressure regulators and valves including manual valves to pressures over 1 2 PSIG 14 0 W C will cause damage and void all warranties DANGER Explosion hazard Do not use oxygen for pressure testing An explosion could occur during initial start up If the burner piping must be rearranged because of space limita...

Page 8: ...art 1 Installation Continued Part 1 Installation Figure 5 Cont Piping Diagram for RE6850 120 V and RE6850 B 24V RE6850B UL Valve Train Assembly 24VAC RE6850 UL Valve Train Assembly 120VAC Piping Continued ...

Page 9: ...Purging the air from the gas supply line at this step will expedite first light off IMPORTANT Purge outside the building Do not purge into the gas utilization equipment 3 To purge the gas utilization equipment and chimney of any accumulated gases turn main Manual Gas Cock OFF close Pilot Manual Shut Off Valve turn burner power on and set operating control to ON or thermostat to call for heat Let t...

Page 10: ...If you need an orifice that is not included with the burner drill out the provided 0 358 orifice stamped J to the required hole size as per chart above 3 Natural gas to LP gas conversion kits are available consult factory Orifice size and approximate manifold gas pressure setting as shipped Air shutter is set on mark 4 DATA FOR TABLES IS APPROXIMATE AND BASED ON 0 OVERFIRE PRESSURE AT SEA LEVEL 2 ...

Page 11: ...mbustion testing instrument The carbon monoxide content should conform to local codes or in their absence to the level specified in the United States or Canadian Standard referenced on the front cover of this manual and the carbon dioxide content should be approximately 9 5 for NATURAL or 12 for propane or within the limits prescribed by local codes 12 Check the draft control to make sure there is...

Page 12: ...justing screw Turning the screw clockwise will increase outlet pressure counter clockwise will decrease outlet pressure The spark rod for a natural gas burner is welded to a round 1 2 perforated retention plate The spark rod for a propane gas burner is welded to a round 1 2 solid retention plate The 1 2 retention plate is centered in the 3 8 Tee pilot and is positioned so the high tension voltage ...

Page 13: ...elay to allow system prepurge After a 30 second prepurge the 15 second trial for pilot ignition sequence begins Trial for Pilot Ignition On a call for heat and after 30 second prepurge the module energizes the spark source and the pilot valve relay simultaneously The pilot valve opens allowing gas to flow to the pilot burner during the 15 second ignition trial time The spark lights the pilot flame...

Page 14: ...p or Modulating burners Once the STANDBY sequence has a CALL FOR HEAT input normal start up prepurge will be initiated A The blower motor is powered to start the prepurge sequence B The airflow interlock switch must close in ten seconds of prepurge or within the specified purge card timing Otherwise a recycle to the beginning of prepurge or lockout will occur depending on how the airflow switch se...

Page 15: ..._______ LIGHTING INSTRUCTIONS 1 SET OPERATING CONTROL TO OFF OR THERMOSTAT BELOW ROOM TEMPERATURE 2 TURN MANUAL GAS COCK ON 3 TURN BURNER POWER ON 4 SET OPERATING CONTROL TO ON OR THERMOSTAT TO CALL FOR HEAT 5 IF THE PILOT FLAME IS NOT PROVEN WITHIN 15 SECONDS AFTER THE PRE PURGE THE CONTROLLER WILL SHUT OFF THE AUTOMATIC SAFETY SHUT OFF VALVES AND LOCK OUT IF THE PROOF OF FLAME IS LOST DURING BUR...

Page 16: ...he pre purge the Ignition Control Module will lock out RESET the 24 volt ignition Control Module by setting the operating control to OFF or the thermostat below room temperature for at least 30 seconds RESET the 120 volt RM7895 control by pushing its reset button See Section XII C Clogged pilot orifice D Pilot regulator mis adjusted or defective E Defective spark electrode Ignition Control Module ...

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