Weil-McLain Gas Burner User's Manual
Contents
1. Uses cadmium cell for flame detector to monitor oil burner flame also furnishes intermittent ignition Uses ultraviolet electronic flame detector to monitor gas or oil burner flame and provides pre purge programming A models provide intermittent pilot C models provide interrupted pilot and RUN TEST switch RM7897 provides same as above with post purge Monitors the oil or gas burner flame provides pre purge and post purge programming provides switching necessary to allow firing rate motor to be driven to both low fire and high fire positions prevents start up if pre ignition interlocks are open and has low fire start proving circuit In the event pre ignition interlock circuit or running interlock circuit does not prove system will lock out on safety Ultraviolet sensitive electronic flame detector is standard with infrared detector available Monitors the oil or gas burner flame with digital readout control system provides pre purge and post purge programming provides switching necessary to allow firing rate motor to be driven to both low fire and high fire position prevents start up if pre ignition interlocks are open and has low fire start proving circuit In the event pre ignition interlock circuit or running interlock circuit does not prove system will lock out on safety Ultraviolet sensitive electronic flame detector is standard with infrared detector available m WEIL McLAIN Weil McLain 500 Blaine Street2. Michigan City IN 46360 2388 http www weil mclain com Part No 550 142 029 0508
3. WCR1 G 12 WCR1 OS WCR1 GO 12 RM7897A R7184P RM7897C 00 FALFS OO FALFS y Ye 120 60 1 488 7 0 1 010 0 80 WCR1 G 12 WCR1 0S WCR1 GO 12 RM7897A R7184P RM7897C 00 FALFS OO FALFS v Y2 120 60 1 588 9 4 1 356 0 58 WCR1 G 12 WCR1 OS WCR1 GO 12 RM7897A R7184P RM7897C 00 FALFS OO FALFS y Ye 120 60 1 688 11 8 1 701 0 46 WCR2 G 15 WCR2 OAS WCR2 GO 15 RM7897A R7184P RM7897C LHO LHO LHO LHO Ya 120 60 1 788 14 2 2 046 0 47 WCR2 G 15 WCR2 0AS WCR2 G0 15 RM7897A R7184P RM7897C LHO LHO LHO LHO Aa ya 120 60 1 888 16 6 2 382 0 49 WCR2 G 20A WCR2 OBS WCR2 G0 20A RM7897A R7184P RM7897C LHO LHO LHO LHO 1 1 240 60 1 988R 17 2 2 482 0 50 WCR2 G 20B WCR2 OBS WCR2 G0 20B RM7897A R7184P RM7897C LHO LHO LHO LHO 1 1 1 240 60 1 988 18 8 2 737 0 50 WCR2 G 20B WCR2 OBS WCR2 GO 20B RM7897C R7184P RM7897C LHO LHO LHO LHO 1 1 1 240 60 1 1088R 20 0 2 887 0 52 WCR2 G 20B WCR2 OBS WCR2 G0 20B RM7897C RM7897A RM7897C LHO LHO LHO LHO 1 1 1 240 60 1 1088 21 5 3 082 0 73 WCR3 G 20 WCR3 0 WCR3 GO 20 RM7897C RM7897A RM7897C LHO LHO LHO LHO 1 2 2 240 60 1 1188 23 5 3 428 0 53 WCR3 G 20 WCR3 0 WCR3 GO 20 RM7897C RM7897A RM7897C LHO LHO LHO LHO 1 2 2 3 Phase 1288 26 0 3 773 0 48 WCR3 G 20 WCR3 0 WCR3 GO 20 RM7897C RM7897A RM7897C LHO LH
4. combination gas light oil units Consult your local Weil McLain distributor agent or sales office Gas Control Systems 0O On off operation low fire start high fire run Single position air adjustable opening gas valve LHO On off operation low fire start high fire run 488 1388 two position air controlled by damper arm on motorized gas valve fixed damper pre purge 1488 1888 two position air controlled by separate motor open damper pre purge LHL Low high low off firing conditions 488 1388 two position air controlled by damper arm on motorized gas valve fixed damper pre purge 1488 1888 two position air controlled by separate motor open damper pre purge MOD On off operation with proven low fire start and full modulating firing conditions with combustion air control Proportional motor drives fuel metering valve and combustion air damper according to the firing conditions Fixed damper pre purge on 488 1388 open damper pre purge on 1488 1888 Part No 550 142 029 0508 Burner specifications and settings continues Table 2 Gas train components and flame safeguards Gas Pressure initial Low Fire Fuel Unit Data Burner neeaae l Required At Gas Damper Setti Oil Nozzle Oil Pressures Motor Dri i Manifold Control Inlet M
5. 97A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7840L 488 588 R7184P R7184P R7184P R7184P R7184P R7184P R7184P R7184P RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7840L 688 1088R R7184P R7184P R7184P R7184P R7184P R7184P RM7897A RM7897A RM7897A RM7897A RM7897A RM7840L 1088 1288 RM7897A RM7897A RM7840L RM7897A RM7897A RM7840L RM7897A RM7897A RM7840L RM7897A RM7897A RM7840L 1388 1888 RM7840L RM7840L RM7840L RM7840L RM7840L RM7840L RM7840L RM7840L RM7840L RM7840L RM7840L RM7840L COMBINATION GAS OIL BURNERS Boiler UL FM CSD 1 IRI Model Number OO FALFS LHO LHL MOD 00 FALFS LHO LHL MOD 00 FALFS LHO LHL MOD O0 FALFS LHO LHL MOD 488R 588 RM7897C RM7897C RM7897C RM7897C RM7897C RM7897C RM7897C RM7897C RM7897C RM7897C RM7897C RM7897C RM7897C RM7897C RM7897C RM7840L 688 988R RM7897C RM7897C RM7897C RM7897C RM7897C RM7897C RM7897C RM7897C RM7897C RM7897C RM7897C RM7840L 988 1288 RM7897C RM7897C RM7840L RM7897C RM7897C RM7840L RM7897C RM7897C RM7840L RM7897C RM7897C RM7840L 1388 1888 RM7840L RM7840L RM7840L RM7840L RM7840L RM7840L RM7840L RM7840L RM7840L RM7840L RM7840L RM7840L Notes for Table 3 1 Combustion Controls R7184P RM7897A RM7897C RM7840L E110 EPD170 RM7800L E110 EP160
6. O LHO LHO 1 2 2 3 Phase 1388 285 4 119 0 56 WCR3 G 25 WCR3 0 WCR3 GO 25 RM7897C RM7840L RM7840L LHO LHO LHO LHO 1 2 2 3 Phase 1488 31 0 4 464 0 58 WCR3 G 25B WCR3 OB WCR3 G0 25B RM7840L RM7840L RM7840L LHO LHO LHO LHO 3 3 3 3 Phase 1588 33 0 4809 0 59 WCR3 G 25B WCR3 OB WCR3 GO 25B RM7840L RM7840L RM7840L LHO LHO LHO LHO 3 3 3 3 Phase 1688R 34 5 4 979 0 80 WCR3 G 25B WCR3 OB WCR3 G0 25B RM7840L RM7840L RM7840L LHO LHO LHO LHO 3 3 3 3 Phase 1688 35 5 5 155 0 80 WCR3 G 25B WCR3 0B WCR3 G0 25B RM7840L RM7840L RM7840L LHO LHO LHO LHO 3 3 3 3 Phase 1788 38 0 5494 0 62 WCR4 G 25 WCR4 O0A WCR4 GO 25 RM7840L RM7840L RM7840L LHO LHO LHO LHO 3 5 5 3 Phase 1888 40 5 5 845 0 69 WCR4 G 25 WCR4 0A WCR4 G0 25 RM7840L RM7840L RM7840L LHO LHO LHO LHO 3 5 5 3 Phase 208 60 3 240 60 3 480 60 3 burner motor voltage must be specified Notes for Table 1 and Table 2 10 Ti 12 Burner capacities listed for elevations up to 2 000 feet For higher eleva tions consult local Weil McLain distributor agent or sales office Light oil ratings based on No 2 fuel oil with heating value of 140 000 Btu per gallon Gas ratings based on natural gas with heating value of 1 000 Btu per cubic foot and specific gravity of 0 60 Gas burn
7. PE 9etng One Per Unit Psi oro SUNEN Boiler Drop Thru Inches g 3450 Rpm Pressure Inches W C Model Gas Train Inches i Number Inches wos Gph Bypass Pump High Fire Approximate Return W C Min Max Top Bottom 100 Oil Brand Type a Capacity Pump Psig Type Psig System e Psig Pressure High Fire Low Fire P 488R 2 20 2 10 4 10 14 00 4 50 No Delavan Solid 80 300 295 100 150 B2TA 8850 4 37 488 2 20 2 10 4 30 14 00 4 50 No Delavan Solid 80 300 300 ___ 100 150 B2TA 8850 4 37 588 1 80 2 60 4 40 14 00 1 1 5 50 No Delavan Solid 80 300 300 ___ 100 150 B2TA 8850 4 _ 37 688 2 70 1 70 4 40 14 00 7 00 No Delavan Solid 80 300 300 183 100 150 B2TA 8851 4 43 788 2 50 2 30 4 80 14 00 KA KA 8 50 No Delavan Solid 70 300 300 195 100 150 B2TA 8851 4 43 888 3 90 1 20 5 10 14 00 9 50 No Delavan Solid 70 300 300 210 100 150 B2GA 8852 43 988R 4 60 1 60 6 20 14 00 KA KA 10 00 No Monarch PLP 60 300 300 110 80 100 B2GA 8852 47 988 4 50 1 90 6 40 14 00 H 11 00 No Delavan Solid 70 300 280 135 80 100 B2GA 8852 47 1088R 4 90 2 00 6 90 14 00 KA KA 12 00 No Monarch PLP 60 300 290 140 80 100 B2GA 8852 47 1088 4 00 2 30 6 30 14 00 16 00 Yes Del Variflo BPS 80 300 225 150 100 150 22R322D 105 1188 3 30 2 10 5 40 14 00 W fixed _ 14 00 Yes Del Variflo BPS 80 300 295 140 50 108 22R322D 105 1288 4 10 2 50 6 50 14 00
8. W tixed 16 00 Yes Del Variflo BPS 80 300 290 133 50 110 22R322D 105 1388 3 50 2 70 6 20 27 70 KA KA 18 00 Yes Del Variflo BPS 80 300 244 166 60 108 22R322D 105 1488 4 70 3 60 8 20 27 70 Ya Ya 20 00 Yes Del Variflo BPS 80 300 280 180 100 150 22R623D 105 1588 5 30 3 90 9 20 27 70 Va Ya 22 00 Yes Del Variflo BPS 60 300 290 165 100 150 22R623D 105 1688R 5 80 4 10 10 50 27 70 Va Ya 22 00 Yes Del Variflo BPS 60 300 295 175 100 150 22R623D 135 1688 6 20 4 40 10 50 27 70 Va Yo 22 00 Yes Del Variflo BPS 60 300 295 155 100 150 22R623D 135 1788 6 50 2 80 9 30 27 70 Va Ya 24 00 Yes Hago BPS 60 300 300 165 100 150 22R623D 135 1888 7 10 3 20 10 30 27 70 Va Ya 26 00 Yes Hago BPS 60 300 300 175 100 150 22R623D 135 Gas pressure shown are for standard gas train arrangement Primary manufacturer For alternate nozzles contact Power Flame 70 spray angle standard 60 or 80 approved and available upon request Standard Gas Control Components And Sizes In Inches Boiler Model Manual Hand Low Gas Gas Combination Motorized Motorized Operating Safety Manual High Number Valve Pressure Pressure Gas Valve And Operating Gas Valve Gas valve Checking Gas Pressure Switch Regulator Regulator Gas Valve With Proof Of Closure Gas Valve Switch 488R 488 1 Optional Optional 1 Optional Optional 1 1 Optional 588 1 Optional Optional 1 Optional Optional 1 1 Optional 688 1 Optional Optional 1 1 Optio
9. ers for other gases are available Consult local Weil McLain distributor agent or sales office Boiler burner unit to be adjusted to achieve 0 10 inches W C pressure at the flue collar resulting in positive pressure in firebox as listed Minimum gas pressures listed are subject to variations due to job condi tions Gas burners for other gas pressures are available Consult local Weil McLain distributor agent or sales office Tee pressures shown are for initial start up Final pressure should be determined after checking actual gas flow and combustion readings 120 60 1 control circuit is used for all burners Control circuit transformer is available as an option Motor relay or contactor will be furnished for all units except 488R and 488 Airflow safety switch is standard for all gas and combination gas light oil units Burners will be completely assembled and wired except gas train and factory test fired Burners listed by Underwriters Laboratories Inc state of Connecti cut Fire Marshal state of Massachusetts city of New York MEA and others 13 14 15 16 Special controls can be provided to meet other code requirements not listed Consult your local Weil McLain distributor agent or sales office Electric gas pilot will be furnished as standard equipment on all gas and combination gas light oil units Direct spark ignition is standard for light oil units Direct spark ignition is available as an option for
10. ing valve and combustion air damper MOD MOD Combines gas and light oil characteristics according to the firing conditions Fixed damper pre purge on 488 1088R open damper pre purge on 1088 1888 Part No 550 142 029 0508 1388 1888 isted above Open damper pre purge on Burner specifications and settings continues Table 3 Flame safeguards Flame Safeguards Provided with Listed Control Systems by Code GAS BURNERS Boiler UL FM CSD 1 IRI Model Number 00 LHO LHL MOD 00 LHO LHL MOD 00 LHO LHL MOD 00 LHO LHL MOD 488R 588 RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897C RM7897C RM7897C RM7840L 688 988R _ RM7897A RM7897A RM7897A _ RM7897A RM7897A RM7897A _ RM7897A RM7897A RM7897A _ RM7897C RM7897C RM7840L 988 1388 _ RM7897C RM7897C RM7840L _ RM7897C RM7897C RM7840L RM7897C RM7897C RM7840L RM7897C RM7897C RM7840L 1488 1888 RM7840L RM7840L RM7840L _ RM7840L RM7840L RM7840L RM 7840L RM7840L RM7840L _ RM7840L RM7840L RM7840L LIGHT OIL BURNERS Boiler UL FM CSD 1 IRI Model Number FALFS LHO LHL MOD FALFS LHO LHL MOD FALFS LHO LHL MOD FALFS LHO LHL MOD 488R R7184P R7184P R7184P R7184P R7184P R7184P R7184P R7184P RM78
11. nal Hi 1 Optional 788 1 Optional Optional 1 1 Optional a 1 Optional 888 2 Optional Optional 1 1 Optional 1 Optional 988R 2 Optional 2 1 Optional 1 1 Optional 988 1088R 2 Standard 2 2 Optional 1 1 Standard 1088 2 Standard 2 _ 2 Optional 2 2 Standard 1188 1588 2 Standard 2 2 Optional 2 2 Standard 1688R 1888 2 Standard 2 _ 2 2 2 Standard Combination operating gas valve and regulator also serves as safety gas valve 17 Light Oil Control Systems 18 Gas Light Oil Control Systems FALFS On off operation fixed air reduced fuel low fire start high fire run Single OO FALFS Combines gas and light oil characteristics position air two position oil isted above 070 On off operation low fire start high fire run Single position air single position 00 00 Combines gas and light oil characteristics ol isted above LHO On off operation low fire start high fire run Two position air two position oil CROLHO C mDines gas and light oil ranie Fixed damper pre purge on 488 1288 open damper pre purge on 1388 1888 isted above Opern damper pie purge on i 1388 1888 LHL Low high low off firing conditions Two position air two position oil Fixed LHL LHL Combines gas and light oil characteristics damper pre purge on 488 1288 Open damper pre purge on 1388 1888 isted above Open damper pre purge on MOD On off operation with proven low fire start and full modulating firing condi 1388 1888 tions Proportional motor drives fuel meter
12. um WEIL MALAIN ss Water amp Steam Boilers Series 2 For Gas Light Oil amp Gas Light Oil Fired Burners Burner Specification Power Flame Gas Oil Burners amp Data Sheet Model WCR Figure 1 Model WCR a j 2 A al 3 13 an i ite wn c R ec a pS 2 1 Wa l er AL Ks j oae 4 00 X a ah p BIR r ma a POY ra 5 8Dia 4holes X Note Add 38 to H dim for size of opening in boiler front plate Burner Approximate A B R R D E P H l X j Model Number R ce Weight WCRI 34 13 5 56 14 50 4 63 12 25 20 00 3 25 7 25 7 38 12 63 7 25 175 200 WCR2 39 13 6 13 14 00 5 25 14 00 20 00 4 00 8 75 8 50 13 38 8 50 220 300 WCR3 44 00 7 00 15 25 6 00 16 00 22 38 5 00 10 13 11 50 15 50 10 00 360 400 WCR4 50 00 7 31 17 69 7 00 18 50 28 00 6 00 12 13 14 25 19 13 12 00 500 550 Required for installation of standard control components Part No 550 142 029 0508 Burner specifications and settings Table 1 Burner data l Burner Input Positive A Standard Standard Standard Burner Motor A Boiler urner Model Designation Combustion Control Control System 3450 Rpm Model ste ae Motor Number No 20il Gas In Firebox Gas Light ren Gas Light Gas Light Gas Light Gas Light Gas Light Voltage Gph Mbh In W C q eee sell Oil oil oil oil Oil ate 488R 6 9 996 0 80
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