Bard W24G3DA Installation Instructions Manual Download Page 7

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Manual 2100-631
Page

7 of 53

TABLE 1

SPECIFICA

TIONS

W24GD, W30GD AND W36GD MODELS

75 degree C Copper wire size

Maximum time delay fuse or circuit breaker

Models

W24G3DA

W24G3DB

W24G3DC

W30G3DA

W30G3DB

W30G3DC

W36G3DA

W36G3DB

W36G3DC

Electrical Rating - 60 Hz

230/208-60-1

230/208-60-3

460-60-3

230/208-60-1

230/208-60-3

460-60-3

230/208-60-1

230/208-60-3

460-60-3

Operating V

oltage Range

197-253

414-506

197-253

414-506

197-253

414-506

Minimum Circuit Ampacity

* Field W

ire Size

Ground W

ire Size

** Delay Fuse – Max.

Compressor

Compressor T

ype

Scroll

Volts

230/208

460

230/208

460

230/208

460

Rated Load Amps

9.9/10.9

6.4/7.1

3.9

11.8/12.9

7.5/8.2

4.7

12.5/14.2

7.8/8.9

5.0

Branch Circuit Selection Current

12.8

8.3

5.1

14.1

9.0

5.6

16.7

10.5

5.8

Lock Rotor Amps

Fan Motor and Compressor

Fan Motor – HP/RPM/SPD

1/5 / 1050 / 1

Fan Motor – Amps

1.5

0.8

1.5

0.8

1.5

0.8

Fan – DIA/CFM

20” – 1900

Motor and Evaporator

Blower Motor – HP/RPM/SPD

1/4 / 950 / 3

1/3 / 1075 / 3

Blower Motor – Amps

1.8

0.8

2.2

1.1

2.2

1.1

CFM Cooling & E.S.P

800 – .25

1000 – .35

1100 – .25

Filter Sizes (Inches)

20 x 25 2

Charge (R-410A oz.)

100

Summary of Contents for W24G3DA

Page 1: ... THE REQUIREMENTS OF ALL GOVERNING CODES AND ORDINANCES FOR THE INSTALLATION LOCATION IT IS THE RESPONSIBILITY OF INSTALLER TO KNOW AND UNDERSTAND ALL OF THESE REQUIREMENTS FAILURE TO DO SO COULD CREATE A HAZARD RESULTING IN PROPERTY DAMAGE BODILY INJURY OR DEATH WG SERIES COMBINATION GAS ELECTRIC WALL MOUNT WITH DEHUMIDIFICATION Models W24G3DA W24G3DB W24G3DC W30G3DA W30G3DB W30G3DC W36G3DA W36G3...

Page 2: ...s Supply Piping 27 19 Manifold Pressure Adjustment 28 20 Checking Gas Input Rate 28 21 Standard Orifice Sizing High Altitude Derate 30 22 Conversion of Gas Input BTUH From High to Low Rating 33 23 Measuring Air Temperature Rise 33 24 Filters 34 25 Compressor Control Module 34 26 Lighting Shutdown Instructions 36 27 Service Agency Procedures 37 28 Maintaining Unit Good Working Order 37 29 Replaceme...

Page 3: ...Top View of Gas Control 37 Figure 17 Sequence of Operation Electronic Blower Control 40 Figure 18 Furnace Control Board Blower Control 41 Figure 19 Circuit Diagrams 50 Figure 20 Fan Blade 52 Figure 21 Low NOx Insert 52 TABLES Table 1 Specifications W24G 36G Models 7 Table 1A Specifications W42G 60G Models 8 Table 2 Minimum Installation Clearances 17 Table 3 Thermostat Wire Size 22 Table 4A Wall Th...

Page 4: ... Rexdale Boulevard Rexdale Ontario Canada M9W 1R3 Telephone 416 447 4044 BARD MANUFACTURING COMPANY INC BRYAN OHIO 43506 USA These publications can help you install the furnace You can usually find these at your local library or purchase them directly from the publisher Be sure to consult current edition of each standard National Fuel Gas Code ANSI Z223 1 NFPA 54 National Electrical Code ANSI NFPA...

Page 5: ...er Fully Modulating E WGJIFM 3 WGJIFM 5 Energy Recovery Ventilator 230 Volt R WGERV A3B WGERV A5B Energy Recovery Ventilator 460 Volt R WGERV C3B WGERV C5B MODEL Wall Mount CONTROL OPTIONS See Table page 6 FEATURE D Dehumidification VOLTAGE A 230 208 60 1 B 230 208 60 3 C 460 60 3 VENT See Table Below COOLING CAPACITY 24 2 ton 30 2 ton 36 3 ton 42 3 ton 48 4 ton 60 5 ton REVISION EMISSIONS X Stand...

Page 6: ...d be carefully read before beginning the installation Note particularly Starting Procedure and any tags and or labels attached to the equipment All duct work supply and return must be properly sized for the design airflow requirement of the equipment Air Conditioning Contractors of America ACCA is an excellent guide to proper sizing Refer to Tables later in this Manual for maximum static pressure ...

Page 7: ...0 208 230 208 460 230 208 230 208 460 Rated Load Amps 9 9 10 9 6 4 7 1 3 9 11 8 12 9 7 5 8 2 4 7 12 5 14 2 7 8 8 9 5 0 Branch Circuit Selection Current 12 8 8 3 5 1 14 1 9 0 5 6 16 7 10 5 5 8 Lock Rotor Amps 64 58 28 77 71 38 79 73 38 Fan Motor and Compressor Fan Motor HP RPM SPD 1 5 1050 1 1 5 1050 1 1 5 1050 1 1 5 1050 1 1 5 1050 1 1 5 1050 1 1 5 1050 1 1 5 1050 1 1 5 1050 1 Fan Motor Amps 1 5 1...

Page 8: ...30 208 230 208 460 Rated Load Amps 16 0 18 0 10 6 11 9 5 6 16 0 18 2 10 1 11 9 5 2 21 7 25 0 13 1 15 1 7 5 Branch Circuit Selection Current 19 9 13 1 6 1 21 8 13 8 3 0 26 3 15 7 7 8 Lock Rotor Amps 109 83 0 41 117 8 3 41 134 110 52 Fan Motor and Compressor Fan Motor HP RPM SPD 1 3 850 2 1 3 850 2 1 3 850 1 1 3 850 2 1 3 850 2 1 3 850 1 1 3 850 2 1 3 850 2 1 3 850 1 Fan Motor Amps 2 5 2 5 1 3 2 5 2...

Page 9: ...OUTLET AIR EXHAUST COMBUSTION ENTRANCES FRONT CIRCUIT BREAKER MIS 3239 HIGH VOLTAGE ENTRANCES FRONT DOOR FILTER SERVICE DOOR UNIT A B C D E F G H I J K L M N O P Q R W24G W30G W36G 7 88 27 88 13 88 24 25 40 25 63 81 63 27 38 27 5 39 25 5 88 W42G W48G W60G 9 88 29 88 15 88 27 25 43 81 31 63 87 5 33 38 28 75 42 88 3 75 UNIT S T U V W X Y Z AA BB CC DD EE FF GG HH II W24G W30G W36G 12 7 HOLES 2 88 22...

Page 10: ...and in the absence of specific recommendations from the local authority having jurisdiction equipment ratings shall be reduced as specified in Section 21 5 TRANSPORTATION DAMAGE All units are packed securely in shipping container All units should be carefully inspected upon arrival for damage In the event of damage the consignee should 1 Note on delivery receipt of any damage to container 2 Notify...

Page 11: ...ble wall use a minimum of Figure 1 A dimension plus 2 inches and B dimension plus 2 inches See Figures 4 and 5 for details 3 Locate and mark lag bolt locations and bottom mounting bracket location 4 Mount bottom mounting bracket 5 Hook top rain flashing under back bend of top Top rain flashing is shipped secured to the right side of the back 6 Position unit in opening and secure with 5 16 lag bolt...

Page 12: ... OPTIONAL 12 FLANGE SCREWS UNIT SUPPORT 1 MIN NECCESSARY NO CLEARANCE SUPPLY AIR DUCT RETURN AIR DUCT CONTROL PANEL VESTIBULE DOOR WALL STRUCTURE OUTSIDE 1 CLEARANCE ON ALL FOUR SIDES OF SUPPLY AIR DUCT IS REQUIRED FROM COMBUSTABLE MATERIALS NOTE IT IS RECOMMENDED THAT A BEAD OF SILICONE CAULKING BE PLACED BEHIND THE SIDE MOUNTING FLANGES AND UNDER TOP FLASHING AT TIME OF INSTALLATION RIGHT SIDE V...

Page 13: ...Manual 2100 631 Page 13 of 53 FIGURE 2A MOUNTING INSTRUCTIONS FOR W42G W48G AND W60G ...

Page 14: ...m of one 1 inch clearance must be maintained between the supply air duct and combustible materials This is required for the first three 3 feet of ducting It is important to insure that the one 1 inch minimum spacing is maintained at all points Failure to do this could result in overheating the combustible material and may result in a fire causing damage injury or death ...

Page 15: ...Manual 2100 631 Page 15 of 53 FIGURE 4 WALL MOUNTING INSTRUCTIONS FIGURE 5 WALL MOUNTING INSTRUCTIONS ...

Page 16: ...Manual 2100 631 Page 16 of 53 FIGURE 6 COMMON WALL MOUNTING INSTALLATIONS ...

Page 17: ...et and discharge openings DO NOT install the unit in a location that will permit discharged air from the condenser to recirculate to the condenser inlet TABLE 2 MINIMUM INSTALLATION CLEARANCES Outlet Duct from combustible materials 1 inch first 3 feet Vent Terminal from combustible materials 17 inches Condenser Inlet 20 inches Top See Figure 3 Burner Service 20 inches Combustible Base Wood or Clas...

Page 18: ...t includes a stainless steel transition drain tee silicone sealant and drain tubing If unit is installed with vertical vent kit annually inspect the vent system and drain Replace any portion of the vent system that shows signs of deterioration Make sure drain is open and free of obstruction FIGURE 8 VENT TERMINAL AND COMBUSTION AIR INTAKE CAUTION Vent terminal must be installed as shown in Figure ...

Page 19: ...nce spillage at the draft hood relief opening after 5 minutes of main burner operation Use the flame of a match or candle 6 After it has been determined that each appliance connected to the venting system properly vents when tested as outlined above return doors windows exhaust fans fireplace dampers and any other gas burning appliances to their previous conditions of use 7 If improper venting is ...

Page 20: ...e a proper electrical ground could result in electric shock or fire 15 WIRING MAIN POWER Refer to unit rating plate for wire sizing information and maximum fuse or circuit breaker size Each outdoor unit is marked with a Minimum Circuit Ampacity This means that the field wiring used must be sized to carry that amount of current All models are suitable only for connection with copper wire Each unit ...

Page 21: ... dehumidification input This energizes compressor blower and 3 way dehumidification valve W1 terminal is the heating input 230 208 Volt Units All models are equipped with dual primary voltage transformers All equipment leaves the factory wired on 240V tap For 208V operation reconnect from 240V to 208V tap The acceptable operating voltage range for the 240V and 208V taps are 460 Volt Units All mode...

Page 22: ... Stage Cool 3 Stage Heat Programmable Non Programmable Electronic HP or Conventional Auto or Manual changeover TABLE 3 THERMOSTAT WIRE SIZE Transformer VA FLA Wire Gauge Maximum Distance in Feet 55 2 3 20 gauge 18 gauge 16 gauge 14 gauge 12 gauge 45 60 100 160 250 Thermostat Predominant Features 8403 060 1120 445 Programmable Thermostat above with Integral Humidistat 8403 0388 H600A 1014 Humidista...

Page 23: ...l A W2 E Y2 Y1 2 3 L W1 Y2 Unit 24V W1 E C 2 Thermostat Subbase A Y NEEDED FOR ECONOMIZER ONLY 1120 445 O B Unit Control Panel Factory Installed Jumper G Part 8403 060 R 1 W2 CONFIGURE THERMOSTAT FOR HEAT COOL 2 Thermostat 1 D YO 3 3 MIS 2786 A INSTALL ONLY IF APPLIED THERMOSTAT DOES NOT HAVE INDIVIDUAL OUTPUT SIGNAL FOR OCCUPENCY ORE YOU ARE NOT APPLYING A CO2 CONTROL ...

Page 24: ... 057 8403 058 OR OTHER THERMOSTAT THAT DOES NOT 1 INSTALL IF YOU REQUIRE VENTILATION ANYTIME BLOWER IS ON HAVE OCCUPANCY OUTPUT B O 2 3 SET SWITCH ON THERMOSTAT TO GAS OIL TO 6 2 HEAT 2 COOL CONVENTIONAL 4 CHANGE SYSTEM TYPE SET UP FUNCTION 1 FROM 5 2 HEAT 1 COOL HEAT PUMP 5 1 NEEDED FOR ECONOMIZER ONLY 3 2 Y1 Y2 E W2 A W1 2 F Block Unit Control Panel Y 4 C R G 1 Mechanical Humidistat H200 10 21 1...

Page 25: ...lock R C W1 F A Factory Installed OR CO2 CONTROLLER FOR DEMAND VENTILATION CONTROL IS APPLIED W2 W2 CONTROLS DON T HAVE AN OCCUPENCY OUTPUT NOTE YOU WILL NEED TO Terminal VENT PACKAGE 2 W1 Jumper Jumper R 1 2 WIRING PLUG Unit Control Panel BLUE 1 G E G 1 Unit Control Panel BROWN WHITE REMOVE ORANGE WIRE FROM G TERMINAL AND TAPE OFF BLACK WHITE Factory Installed Y2 Y2 Y1 2 3 3 RED WHITE F INSTALL J...

Page 26: ...Manual 2100 631 Page 26 of 53 FIGURE 12 GAS PIPE CONNECTION W24G W36G W42G W60G ...

Page 27: ...d Immediately after turning on gas the system should be checked for leaks This can be done by watching the 1 2 cubic foot test dial and allowing 4 minutes to show any movement and by soaping each pipe connection and watching for bubbles If a leak is found make the necessary repairs immediately and repeat the above test The furnace must be isolated from the gas supply piping system by closing the m...

Page 28: ...djust manifold pressure by turning gas control regulator adjusting screw clockwise to increase pressure or turning counterclockwise to decrease pressure Manifold pressure must be within allowable range as follows Natural gas manifold pressure must be between 3 2 and 3 8 inches W C Rated pressure is 3 5 inches Propane gas LP manifold pressure must be between 9 7 and 10 3 inches W C Rated pressure i...

Page 29: ... the furnace gas input 9 If you left water heater dryer or range pilots on allow for them in calculating correct furnace gas input A quick way is to allow 1 000 BTU per hour for a water heater 500 BTU per hour for dryer and 500 BTU per hour for each range burner pilot Example If you left gas water heater dryer two range burner pilots and one oven pilot on allow Water heater pilot 1 000 BTU per hou...

Page 30: ...880 34 182 37 980 33 696 37 440 33 048 36 720 32 643 36 270 32 076 35 640 61 000 68 000 60 750 67 500 58 806 65 340 56 862 63 180 54 918 61 020 53 460 59 400 52 488 58 320 51 273 56 970 50 544 56 160 49 572 55 080 48 965 54 405 48 114 53 460 75 000 81 000 75 000 81 000 72 600 78 408 70 200 75 816 67 800 73 224 66 000 71 280 64 800 69 984 63 300 68 364 62 400 67 392 61 200 66 096 60 450 65 286 59 4...

Page 31: ...e Switch Change and Orifice Change Based on BTU Content 8 001 to 10 000 Feet Requires Pressure Switch Change and Orifice Change Based on BTU Content 20250 BTU Per Burner 700 749 2 60 2 50 2 45 750 799 2 50 2 45 2 40 800 849 2 45 2 40 2 30 850 899 2 40 2 30 2 25 900 949 2 30 2 25 2 20 950 999 2 25 2 20 2 15 1000 1049 2 20 2 15 2 10 1050 1100 2 15 2 15 2 10 Pressure Switch Standard 55 Order 8620 189...

Page 32: ...stalled orifice size 2 30 orifices are shipped with the unit for field installed optional 10 derate Optional 10 Field Converted Derate Gas Heat Value BTU Cu Ft Up to 6 000 Feet No Changes Except for BTU Content 6 001 to 8 000 Feet Requires Pressure Switch Change and Orifice Change Based on BTU Content 8 001 to 10 000 Feet Requires Pressure Switch Change and Orifice Change Based on BTU Content 2225...

Page 33: ...oximately 2 feet from furnace Locate thermometer tip in center of plenum to ensure proper temperature measurement 6 Place second thermometer in return air duct approximately 2 feet from furnace Locate thermometer tip in center of duct to ensure proper temperature measurement 7 Set room thermostat on highest temperature setting Operate furnace 10 minutes Record supply air and return air temperature...

Page 34: ... the high pressure switch opens the compressor contactor will de energize immediately The lockout timer will go into a soft lockout and stay in soft lockout until the high pressure switch closes and the delay on make time has expired If the high pressure switch opens again in this same operating cycle the unit will go into manual lockout condition and the alarm circuit will energize Recycling the ...

Page 35: ...ake DOM timing on power up and after power interruptions is equal to 2 minutes plus 10 of delay on break DOB setting 0 5 minute 30 seconds DOB 123 second DOM 1 0 minute 60 seconds DOB 126 second DOM 2 0 minute 120 seconds DOB 132 second DOM 3 0 minute 160 seconds DOB 138 second DOM 4 0 minute 240 seconds DOB 144 second DOM 5 0 minute 300 seconds DOB 150 second DOM Phase Monitor All units with thre...

Page 36: ...Manual 2100 631 Page 36 of 53 26 LIGHTING AND SHUTDOWN INSTRUCTIONS FIGURE 15 INSTRUCTION LABEL ...

Page 37: ... the upper tubes of the heat exchanger Check the exterior of the heat exchanger and the interior flue gas passages for any evidence of deterioration due to corrosion cracking or other causes If signs of sooting exist remove the burners and clean the heat exchanger as required 28 MAINTAINING UNIT IN GOOD WORKING ORDER The unit should be inspected annually by a qualified service agency MIS 165 FIGUR...

Page 38: ... sure the supply and return air flange sleeves or duct work are securely fastened to unit and physically sound d Supply and return grilles must be open and free from obstructions e Inspect to make sure the unit is securely fastened to the wall Seal any possible leaks between unit and wall with appropriate exterior sealing material f Inspect burners heat exchanger induced draft blower and induced d...

Page 39: ...OF OPERATION COOLING On a call for cooling from the room thermostat the high speed blower relay will be energized as well as the compressor contactor Following termination of the cooling cycle the blower motor will continue to run for one minute See Figure 17 for additional information The unit may be equipped with a low ambient control for lower outdoor temperature operation in the cooling mode I...

Page 40: ...tpurge timing Heat fan off delay timing begins When timing is complete the circulating fan is de energized Thermostat begins call for cool G and Y1 terminals re energized Cooling contactor is energized Circulating fan is energized on cool speed after cool fan on delay timing Thermostat begins call for fan G terminal is de energized Circulating fan is de energized Limit flame rollout opens Thermost...

Page 41: ...o check for proper blower operation If it is desirable to have both HEAT COOL blower motor speed at the same speed install a jumper wire between HEAT and COOL terminals of the integrated furnace control board and place both unused motor speed lead wires on the two UNUSED terminals on the integrated furnace control board See Figure 18 Speeds 3 Speed Blower Motor Low Red Medium Blue High Black Speed...

Page 42: ...gh Medium Low High Medium Low 0 0 890 1350 1120 1120 940 0 1 820 1260 1160 1160 870 0 2 950 770 1200 1010 1200 1010 0 3 880 700 1120 1120 940 0 4 790 1030 1030 860 0 5 910 710 950 0 6 800 840 ESP Inches H2 O COOLING MODE MANUAL FAN and HEATING MODE Wet Coil 68 000 BTU Input 61 000 BTU Input High Medium Low High Medium Low High Medium Low 0 0 890 1350 1120 940 1120 940 0 1 820 1260 1160 870 1160 87...

Page 43: ...370 1200 1010 0 3 1080 880 1290 1120 940 1290 1120 940 0 4 1150 990 1190 1030 860 1190 1030 860 0 5 1050 910 1090 950 780 1090 950 780 0 6 940 980 840 660 980 840 660 ESP Inches H2 O COOLING MODE MANUAL FAN and HEATING MODE Wet Coil 68 000 BTU Input 61 000 BTU Input High Medium Low High Medium Low High Medium Low 0 0 1060 1560 1350 1120 1560 1350 1120 0 1 1000 1470 1260 1060 1470 1260 1060 0 2 116...

Page 44: ...120 0 1 1220 1000 1260 1060 1260 1060 0 2 1160 950 1370 1200 1010 1200 1010 0 3 1250 1080 1290 1120 940 1120 940 0 4 1150 990 1190 1030 1190 1030 860 0 5 1050 1090 950 1090 950 0 6 940 980 980 840 ESP Inches H2 O COOLING MODE MANUAL FAN and HEATING MODE Wet Coil 68 000 BTU Input 61 000 BTU Input High Medium Low High Medium Low High Medium Low 0 0 1060 1350 1120 1120 0 1 1220 1000 1260 1060 1060 0 ...

Page 45: ...1510 1090 0 3 1360 1760 1460 1460 0 4 1250 1670 1340 1670 1340 0 5 1460 1150 1560 1240 1560 1240 0 6 1340 1040 1430 1130 1430 1130 ESP Inches H2 O COOLING MODE MANUAL FAN and HEATING MODE Wet Coil 100 000 BTU 90 000 BTU Input High Medium Low High Medium Low High Medium Low 0 0 1190 1690 1280 1690 1280 0 1 1530 1140 1630 1230 1630 1230 0 2 1460 1070 1560 1160 1560 1160 0 3 1410 1050 1810 1510 1140 ...

Page 46: ...1880 1510 1510 1110 0 3 1670 1360 1760 1460 1460 1090 0 4 1570 1250 1670 1340 1670 1340 0 5 1460 1560 1240 1560 1240 0 6 1340 1430 1430 1130 ESP Inches H2 O COOLING MODE MANUAL FAN and HEATING MODE Wet Coil 100 000 BTU 90 000 BTU Input High Medium Low High Medium Low High Medium Low 0 0 1590 1690 1280 1690 1280 0 1 1530 1630 1230 1630 1230 0 2 1460 1560 1160 1560 1160 0 3 1700 1410 1810 1510 1140 ...

Page 47: ...0 1880 1510 1510 1110 0 3 1670 1360 1760 1460 1460 1090 0 4 1570 1670 1340 1670 1340 0 5 1460 1560 1240 1560 1240 0 6 1340 1430 1430 1130 ESP Inches H2 O COOLING MODE MANUAL FAN and HEATING MODE Wet Coil 100 000 BTU 90 000 BTU Input High Medium Low High Medium Low High Medium Low 0 0 1590 1690 1280 1690 1280 0 1 1900 1530 1630 1230 1630 1230 0 2 1830 1460 1560 1160 1560 1160 0 3 1700 1410 1810 151...

Page 48: ...tuation the inducer will operate for the 30 second postpurge and the comfort air blower will operate for the selected off delay If on Manual Fan operation the comfort air blower will continue to operate SAFETY UNITS High limit Rollout Pressure switch SPST in 24 Volt SPST safe start check COMFORT FAN CONTROL Heating Speed Fan Normal operation ON delay OFF delay Limit Operation Flame Sense 30 second...

Page 49: ...efault setting If jumper is set to 2 3 occupied dehumidification only outputs will be off 24V Terminal Block Connections G Y 3 W1 Outputs from Board Inputs to Board G Y D W2 G1 TWV YO Cooling Mode Unoccupied X X X X Cooling Mode Occupied X X X X Cooling Mode With Dehum X X X X X 1st Stage Heating Unoccupied X X 1st Stage Heating Occupied X X 1st Stage Heating With Dehum X X X 2nd Stage Heating Uno...

Page 50: ...rgizes both the compressor circuit and the three way valve thus directing the hot refrigerant discharge gas into a separate desuperheating condenser circuit which reheats the conditioned air before it is delivered to the room The refrigerant gas is then routed from the desuperheating condenser to the system condenser for further heat transfer A small orifice inserted between the reheat coil return...

Page 51: ... 296 134 321 137 345 139 370 142 395 145 411 146 449 148 477 150 506 152 535 154 564 156 592 85 DB 72 WB Low Side High Side 142 282 145 307 147 332 150 357 153 382 155 407 158 432 160 461 162 491 164 521 166 550 168 580 170 609 W36G3D 75 DB 62 WB Low Side High Side 115 271 120 291 123 311 127 332 130 356 133 380 136 406 137 433 139 461 140 490 141 522 141 554 141 588 80 DB 67 WB Low Side High Side...

Page 52: ...strict regulations for nitrogen oxide emission levels Refer to Figure 21 for NOx insert information IMPORTANT For propane LP conversions the NOx reduction screen inserts shown below must be removed This is accomplished by removing the burner box assembly and removing the NOx screens Reassemble unit properly before firing Failure to remove the NOx screens can result in improper operation and malfun...

Page 53: ...4085 387 W30G3DA 4085 167 4085 168 W30G3DB 4085 265 4085 266 W30G3DC 4085 388 4085 389 W36G3DA 4085 167 4085 168 W36G3DB 4085 265 4085 266 W36G3DC 4085 388 4085 389 W42G3DA 4085 167 4085 168 W42G3DB 4085 265 4085 266 W42G3DC 4085 388 4085 389 W48G3DA 4085 169 4085 170 W48G3DB 4085 267 4085 268 W48G3DC 4085 390 4085 391 W60G3DA 4085 169 4085 170 W60G3DB 4085 267 4085 268 W60G3DC 4085 390 4085 391 ...

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