product Ultra Low NO x emissions WM-G10 ZM-PLN and WM-G20 ZM-PLN monarch burners (290 10,240 MBH) Information on Ultra Low NO x gas burners

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product Information on Ultra ow NO x gas burners Ultra ow NO x emissions WM-G0 ZM-N and WM-G20 ZM-N monarch burners (290 0,240 MBH)

A new class of emissions: Ultra-ow NO x Test-firing chambers for medium and large-sized burners at the Weishaupt Research & Development Centre For more than six decades, Weishaupt s monarch series burners have been used on a wide variety of heat generators and industrial plant, and their success has helped establishing Weishaupt s outstanding reputation. The N-version burners are ready for use in situations where the very lowest of emission levels are being demanded. N stands for remix ow NO x a system that combines premixing with surface-stabilized combustion. A further advantage of this type of combustion system is that it can be utilized on appliances with particularly small combustion chambers. Homogeneous, surface-stabilized combustion 2

3

Weishaupt premix technology for extremely low NO x emission The metal gauze air filter is protected from dust by an additional foam pre-filter sleeve A microweave mat made from a high-quality alloy permits the right amount of gas / air mix to pass Weishaupt N-version burners can also be used in very small combustion chambers Everywhere in the world, emission limits are becoming more and more stringent, with a focus on NO x emissions in particular. Weishaupt has therefore developed a new generation of burners designed to fulfil these demands. Weishaupt burners have always been particularly efficient and environmentally friendly. remix burner technology is used to achieve NO x emissions below 5 ppm and even lower. remixing followed by surface-stabilized combustion has been state of the art for many years in small condensing boilers. It is environmentally friendly, reliable and efficient. Extending these benefits to typical heat generators with larger outputs was the developmental goal for the N-version burners. Special gas / air mix Stabilized surface combustion relies on an homogeneous gas / air mixture. For that reason, a completely new mixing assembly was developed for the N-version burners. A key feature is the separated feed of gas and air, the two media are not mixed together upstream the burner tube. A uniform mixture is created by the gas flow through the distributor and the combustion air that has been set in rotation by the swirl plate. Stabilized surface combustion The gas / air mix, which is under pressure, permeates the microweave alloy mat and combusts on its surface. The flame carpet thereby created has flame temperatures below 2,90 F (,200 C) and so the formation of thermal NO x is inhibited. Single digit NO x emission levels are now also a reality for medium-capacity burners. One substantial benefit of this technology is to be found in the combustion chamber requirements. These can be considerably smaller than those found in typical boilers. Weishaupt s N-version premix burners also have similar turndowns to their forceddraft siblings. The electronic compound regulation provided by the W-FM combustion manager can achieve turndown ratios of 7: with these burners. 4

Burner motor Monitoring unit with ignition and ionization electrodes Burner housing can be hinged open to the left or right-hand side Additional flicker detector for increased safety Ceramic insulator Combustion surface made from a highquality alloy Air pressure switch 2 (mixing pressure) Air damper actuator Metal gauze air inlet filter with foam pre-filter sleeve Air pressure switch (inlet pressure) 5

Simple and safe from installation to operation Aerodynamically designed air damper assembly The special mixing of gas and air ensures reliable ignition behaviour A ceramic insulator provides optimal heat shielding to the mixing assembly and electrode unit Ignition and monitoring The ignition electrode and the ionization electrode (flamerod) are assembled together as a unit. The electrodes are fed through the ceramic insulator for protection against heat and they are also air cooled. Optimal safety and reliability The N-version burners are equipped with two monitoring systems. An ionization electrode monitors the flame on combustion surface, while a flame flicker detector secures the premix chamber and the burner tube. Continuous monitoring The air volume and the condition of the air filter are continuously monitored during burner operation by an additional air pressure switch. The necessary air volume is thereby always guaranteed. Clean combustion air The combustion surface s alloy microweave mat can only distribute the gas /air mixture evenly if its pores are not blocked by particles. For this purpose Weishaupt therefore employs a special metal gauze air filter. An additional pre-filter sleeve is used to keep larger dust particles away from combustion surface. The foam pre-filter sleeve can be washed or replaced as required. Simple installation / easy servicing During installation, the burner flange should be mounted first to the heat exchanger, then combustion tube can be inserted afterwards. Burner combustion tube can be removed without completely dismounting the burner from the heat exchanger. 6

The burner is installed in five easy steps:. 2. 5.. Installation of the ceramic insulator. 2. Check insertion depth and insulation between the burner and the refractory 3. 4. 3. Mount burner s hinged flange. 4. Insert the combustion surface. (optional installation tool is available) 5. Mount burner to the hinged flange. The burner hinges a full 90, enabling the combustion surface to be removed through the mounted burner flange 7

Digital Digital combustion management means optimum combustion figures, excellent repeatability and easy of use. Weishaupt N-version gas burners are equipped as standard with electronic ratio controller and digital combustion management. Modern combustion technologies demand a precise and continually reproducible dosing of fuel and combustion air. This optimizes combustion efficiency and saves fuel. Simple operation Burner s setting and control are carried out via a control and display unit. The display and control unit is directly connected to the combustion manager allowing direct access to parameter settings. The control and display unit depending on the combustion manager, employs either a language-neutral display or a clear text display with a choice of languages. Variable speed drive reduces electrical consumption and facilitates a soft start of the combustion air fan. The use of VFD also reduces noise emissions by a considerable amount. Features digital combustion management W-FM 50 W-FM 00 W-FM 200 Single-fuel operation l l l Intermittent firing l l l Continuous firing >24 h l l l Variable frequency drive l l O 2 module l ION/KC flame sensor for continuous firing l l l Maximum number of actuators 2 4 6 Integrated ID controller with automatic adaption. t / Ni temperature sensor, 0/2 0 V, and 0/4 20 ma inputs for temperature / pressure l 0/2 0 V and 0/4 20 ma setpoint input for temperature / pressure l Configurable 0/4 20 ma analogue output l anguage-neutral ABE control unit l ABE control unit with muliple languages support l l Removable ABE control unit (max. length of connecting line) 65 ft /20 m 325 ft/ 00 m 325 ft/ 00 m Fuel consumption meter (switchable) l ) l Combustion efficiency display l Modbus RTU interface l l l C-supported commissioning l l l l Standard Optional ) Not in conjunction with VFD 8

Max Weishaupt GmbH D -88475 Sc ch hwendi, Germany www w.weishaupt.de.we. monarch mona rc ch 00 8 5 CE-0085BQ0027 Made in Germany WM- G0/2-A monarcch Z M - N Bestimmungsland 5277587 Kat. 206 Gasart min. 85 max. min. 5 max. min. max. Scchutzart h 230 V, ~, 50Hz 400 V, 3~, kw Brrenner e ennertyp Ausführung Faabrr.--Nrr. Herstelljahr ljahr e eistung Anschlussdruck Heizöl NOx- Cl. 3 Steuerspannung Netzspannung Elektr.. eistung 700 500,N, E DE I I2R /3R N kw mbar kg/h I 54 0 A gl 50 Hz kw S i V h min VSD F A s info % esc + Burner with digital combustion manager M Burner motor ACS 40 C software Variable Frequency Drive 5 4 0 Speed sensor T6.3 IEC 6027-2/V X3-04 X3-04 X7-0 X7-0 X8-02 Ì V h min VSD F A s info % esc + X8-04 X8-04 X8-02 S i 2 X5-03 X3-02 E min X75 X75 X0-05 X0-05 X0-06 FM X5-03 S X3-03 Geräte-Nr.: 050302002 QRA2 E T min QRB/C-N ION QRB/C FAME E COUNTER U SENSOR FUE USE-IN max E max X5-02 Siemens Building Technologies HVAC roducts GmbH Made in Germany F 3 air QRA2 E N T 230 VAC 50 or 60 Hz -20 C to + 60 C CE-xxxxxxxxxxxxx DIN Rg.xxxxxxxxxxxxxx Refer to data sheet 7543 VDE ON/OFF 3 V3/V Best.-Nr.: 600400 RESET OERATION 2-4 F to +40 F W-FM50 V X3-05 N N 68.9 Sx 2/3 X0-06 X3-02 E Control and display unit 70.0 IGNITION X6-03 N SV X5-0 76.0 ma E X9-04 X9-04 X7-02 E N E V2 MOTOR CONT X7-02 X5-02 KS20 modulating controller X4-02 X4-02 AARM MOTOR SAFETY OO X6-03 E X3-05 FANGE N INE VOTAGE X3-03 X5-0 Setpoint input Ì FUSE Optional: Gas meter 40 35 0 5 mbar A2 45 20 2,5 50 5 r 50 mba W A2 50 r.g GW mba r. g.n Typ 2,5 400 Re eich x = Ber pma GWe 28 DV 9 DIN 80.0 Ausf 30 25 BCI X56 W-FM 50 combustion manager VSD X74 Gas butterfly Air damper Air pressure switch Gas pressure switch Gas valves KC / ionization flame monitoring 9

Specifications, control and burner nomenclature Suitable fuels Natural gas ropane Different type of fuel requires written confirmation from Weishaupt Corporation. Applications Weishaupt N-version burners are suitable for intermittent and continuous firing on: Installation on heat exchanger Hot water boiler Steam boiler and high pressure hot water boiler Intermittent and continuous operation Hot air generator ) The combustion air must be free from any aggressive substances (Halogen, Chloride, Fluoride, etc) and contamination (dust, building materials, vapours, etc). For many cases an external air ducting to the burner is recommended as an option. ermissible ambient conditions: Ambient temperature -0 to +40 C (4 to 04F) -5 to +40 C (5 to 04F) Air humidity: max. 80 % relative humidity, no condensation Suitable only for indoor operation For installation in unheated rooms under some circumstances special solutions are required (contact Weishaupt) Approvals The N series burners are in compliance with most European and North American applicable standards. Control Weishaupt N-version burners are suitable for sliding-two-stage or modulating operation, depending on the type of modulating controller. Throughout its operating range burner s output is matched to the heat demand. These multiple control options make the WM series burners universally adaptable to various applications. Thus results in a smooth, trouble free start and reliable operation. Installation position The burner is suitable for horizontal and vertical mounting on the heat generator. The manufacturer s instructions should be observed. ) lease inquire Any discrepancy from the above described applications requires written confirmation from Weishaupt Corporation. The maintenance interval could be shortened according to conditions where the burners are installed. 0

Operation with gas Sliding-two-stage or modulating operation (ZM) Stepping motors adjust the capacity between low and high fire depending on the heat demand There is a gradual change between both operating points. There are no sudden, large changes in fuel throughput. Controller options: - W-FM 50 in conjunction with modulating controller - W-FM 00 with integral load controller - W-FM 200 sliding two stage HF F IGN On modulating HF Off F IGN On Off HF = Highfire F = owfire IGN = Ignition Nomenclatures WM G 0 / 3 A ZM-N Size ZM = sliding two stage/ modulating N = remix owno x Revision Capacity G = gas Weishaupt monarch burner series

Burner selection WM-G0, version ZM-N Burner model WM-G0/2-A ZM-N Combustion head WM0/2-N Capacity MBTU/h Natural gas 290 2,390 ropane 325 2,390 Burner model WM-G0/3-A ZM-N Combustion head WM0/3+4-N Capacity MBTU/h Natural gas 445 3,585 ropane 55 3,585 WC 4.0 3.5 3.0 2.5 2.0.5.0 0.5 0.0-0.5 -.0 0 250 500 750,000,250,500,750 2,000 2,250 2,500 MBTU/hr WC 5.0 4.5 4.0 3.5 3.0 32 32 2.5 2.0.5.0 0.5 0.0-0.5 -.0 -.5 0 500,000,500 2,000 2,500 3,000 3,500 4,000 MBTU/hr WC 5.0 4.5 4.0 3.5 3.0 2.5 2.0.5.0 0.5 0.0-0.5 -.0 Natural gas ropane Burner model WM-G0/4-A ZM-N Combustion head WM0/3+4-N Capacity MBTU/h Natural gas 445 3,925 ropane 55 3,925 -.5 0 500,000,500 2,000 2,500 3,000 3,500 4,000 Burner order numbers MBTU/hr Burner Version Order No. model WM-G0/2-A ZM-N 27 24 0 WM-G0/3-A ZM-N 27 25 0 WM-G0/4-A ZM-N 27 26 32 The firing rates are based on an installation altitude of 0 ft (0 m). A reduction of burner capacity of % for every 325 ft (00 m) should be taken into consideration in case of installation altitude above 0 ft. Voltages and frequencies: The burners are equipped with three phase motor in 208-600 V, 60 Hz as standard. Different voltage and frequency are available upon request. Standard burner motor: Insulation class F, protection I 54. Determining load point dependent on excess air (See example on page 9) NO x [ppm] Setting F N. Gas. Gas O 2 2) λ 2) factor ) 30 75 5 %.28.24 2 5 30 7 %.46.6 3 9 8 %.56.84 ) The correction factor is based on the combustion chamber resistance ( F ) at 3 % O 2 2) Excess air and O 2 values are approximate only and may vary depending on site conditions. 2

Burner selection WM-G20, version ZM-N WC 6 Burner model WM-G20/2-A ZM-N Combustion head WM-G20/2 N Capacity MBTU/h Natural gas 65 5,970 ropane 750 5,970 WC 7 Burner model WM-G20/3-A ZM-N Combustion head WM-G20/3 N Capacity MBTU/h Natural gas 853 8,530 ropane,025 8,530 5 6 4 3 32 5 4 32 3 2 2 0 0 - - -2 500 4,500 5,000 5,500 6,000 0,000,500 2,000 2,500 3,000 3,500 4,000 6,500 WC 8 7 6 Natural gas ropane MBTU/hr Burner model WM-G20/4-A ZM-N Combustion head WM-G20/4 N Capacity MBTU/h Natural gas,024 0,240 ropane,95 0,240-2 6,000 7,000 8,000 0,000 2,000 3,000 4,000 5,000 9,000 MBTU/hr The firing rates are based on an installation altitude of 0 ft (0 m). A reduction of burner capacity of % for every 325 ft (00 m) should be taken into consideration in case of installation altitude above 0 ft. Voltages and frequencies: The burners are equipped with three phase motor in 208-600 V, 60 Hz as standard. Different voltage and frequency are available upon request. 5 4 3 32 Standard burner motor: Insulation class F, protection I 54. 2 0 - -2 6,000 7,000 8,000 0,000 2,000 3,000 4,000 5,000 9,000 Burner order numbers MBTU/hr Burner Version Order No. model WM-G20/2-A ZM-N 27 22 WM-G20/3-A ZM-N 27 222 WM-G20/4-A ZM-N 27 223 0,000,000 Determining load point dependent on excess air (See example on page 9) NO x [ppm] Setting F N. Gas. Gas O 2 2) λ 2) factor ) 30 75 5 %.28.24 2 5 30 7 %.46.6 3 9 8 %.56.84 ) The correction factor is based on the combustion chamber resistance ( F ) at 3 % O 2. 2) Excess air and O 2 values are approximate only and may vary depending on site conditions. 3

Example of calculation Standard scope of supply Determining the load point with regard to the required level of NO x emissions Example: Burner firing rate 3,000 MBH Combustion chamber resistance: er appliance s manufacturer, with 3 % O 2.0 w.c. For 5 ppm of NO x, with 7 % O 2.6 w.c. Installation altitude sea level Determining load point dependent on excess air NO x [ppm] Setting F N. Gas. Gas O 2 2) λ 2) factor ) 30 75 5 %.28.24 2 5 30 7 %.46.6 3 9 8 %.56.84 WC 5.0 4.5 4.0 3.5 3.0 2.5 2.0.5.0 0.5 0.0-0.5 -.0 -.5 2,000 2,500 3,000 3,500 4,000 MBTU/hr ) The correction factor is based on the combustion chamber resistance ( F ) at 3 % O 2. 2) Excess air and O 2 values are approximate only and may vary depending on site conditions. NO x reference conditions: Air temperature Air humidity Natural gas ropane Evaluation at each operating point No averaging No measurement uncertainty/ tolerance 3 pass heat exchanger t a = 68F (20 C) x = 70 gr/lb (0 g/kg) Cal =,000 BTU/cu-ft Cal = 2,500 BTU/cu-ft Description WM-G0 ZM-N WM-G20 ZM-N Burner housing, hinged flange, housing cover, Weishaupt burner motor, air inlet housing, fan wheel, combustion head, ignition unit, ignition cable, ignition electrodes, combustion manager with display and operating unit, flame sensor, actuators, flange gasket, limit switch on hinged flange, mounting studs l l Digital combustion manager W-FM 50 l l W-FM 00/ 200 Two main gas safety shut off valves l l Gas butterfly valve l l Air pressure switch l l ow and high gas pressure switches l l Actuators for electronic fuel air ratio controller W-FM: Air damper stepping motor l l Gas butterfly valve stepping motor l l I 54 protection l l l Standard Optional 4

Technical data Gas burners WM-G0/2-A ZM-N WM-G0/3-A ZM-N WM-G0/4-A ZM-N Burner motor Weishaupt model WM-D 90/90-2/K0 WM-D 90/0-2/K5 WM-D 90/0-2/K9 Rated power H (kw).3 () 2.3 (.6) 2.5 (.9) Full load amps (FA) A (@460 V) 2.0 3. 3.2 Motor fuse (VΔ start) A minimum 0A (external) 5A (external) 5A (externally) Speed (60 Hz) rpm 3,500 3,500 3,20 (55 Hz) Combustion manager model W-FM50/ W-FM00 W-FM50/ W-FM00 W-FM50/ W-FM00 Flame monitoring model ION ION ION Air/ gas actuator model SQM33/ SQM45 SQM33/ SQM45 SQM33/ SQM45 Weight (excl. gas train) lbs (kg) 63 (74) 65 (75) 65 (75) Gas burners WM-G20/2-A ZM-N WM-G20/3-A ZM-N WM-G20/4-A ZM-N Burner motor Weishaupt model WM-D 2/40-2/3K0 WM-D 2/70-2/4K5 WM-D 2/70-2/7K0 Rated power H (kw) 4.2 (3.2) 6.7 (5.0) 9.3 (7.0) Full load amps (FA) A (@460 V) 6.2 8.7 5 Motor fuse (VΔ start) A minimum 25A (external) 30A (external) 40A (external) Speed (60 Hz) rpm 3,540 3,530 3,520 Combustion manager model W-FM50/ W-FM00 W-FM50/ W-FM00 W-FM50/ W-FM00 Flame monitoring model ION ION ION Air/ gas actuator model SQM33/ SQM45 SQM33/ SQM45 SQM33/ SQM45 Weight (excl. gas train) lbs (kg) 209 (95) 220 (00) 242 (0) Voltages and frequencies: The burners are equipped with three phase motor in 208-600 V, 60 Hz as standard. Different voltage and frequency are available upon request. Standard burner motor: Insulation class F, protection I 54. 5

Fuel systems Gas train schematic* b 2b 4b 7 Ball valve a Ball valve b Ball valve on pilot gas train 2 Gas pressure regulator 2b ilot gas pressure regulator 3 ow gas pressure switch 4 2 main gas SSOVs and N/O vent valve 4b 2 pilot gas SSOVs and N/O vent valve 5 High gas pressure switch 5a High gas pressure switch 6 Gas butterfly valve 7 Burner 2 3 4 5 a 6 5a * The above schematic shows typical gas train configuration only. The actual gas train configuration shipped with burner might differ depending on applicable codes/ regulation and application. Gas train arrangement For boiler with hinged door the gas train must be installed on the opposite side of the boiler door hinge. Gas train installation Gas train must be mounted tension free. Do not compensate misalignment by over tightening. Distance between burner and gas valves should be as small as possible. ay attention to the correct gas flow direction. Gas train support The gas train must be fixed and supported securely. They must not be allowed to vibrate during operation. Support suitable for the site should be fitted during installation. Gas meter For commissioning a gas meter is required to verify exact gas consumption. 6

Dimensions Mounting-plate drilling dimensions d3 h d d h 45 h l h d4 d5 WM-G0 ZM-N l l l r b d3 45 d d d 5/6 (8 mm) r b d4 d5 WM-G20 ZM-N l l l Burner Dimensions in inches (top) and mm (bottom) model l l 2 l 3 l 4 l 5 l 6 l 7 b b 2 h h 2 h 3 h 4 r r 2 d d 2 d 3 d 4 d 5 d 6 d 7 d 8 d 9 WM-G0/2-A ZM-N 32.8 8. 32.8 8.2 4.3 2.7 8.4 8.9 2. 8.8 6.6 2.3 6.4 32.5 26.9 9.2 3.0 0.2.7 0.0 0.0 5.8 5.7 833 205 834 208 08 68 23 48 307 478 67 33 62 826 682 234 330 M2 260 298 255 253 47 45 WM-G0/3-A ZM-N 32.8 8. 47.2 8.2 4.3 2.7 8.4 8.9 3.2 8.8 6.6 2.3 6.4 32.5 27.5 9.2 3.0 0.2.7 0.0 0.0 5.8 5.7 833 205 98 208 08 68 23 48 335 478 67 33 62 826 698 234 330 M2 260 298 255 253 47 45 WM-G0/4-A ZM-N 32.8 8. 47.2 8.2 4.3 2.7 8.4 8.9 3.2 8.8 6.6 2.3 6.4 32.5 27.5 9.2 3.0 0.2.7 0.0 0.0 5.8 5.7 833 205 98 208 08 68 23 48 335 478 67 33 62 826 698 234 330 M2 260 298 255 253 47 45 WM-G20/2-A ZM-N 39.8 0.0 40.3 9.4 5.0 3. 8.4 2.5 6.7 24.6 8.5 5.7 8.9 40.9 34.2 3.2 7.7 4.6 5.7 4.4 4.2 9.9 9.8 00 254 023 238 28 78 23 545 424* 625 27 400 226 040 869 335 450 M2 370 400 365 360 25 248 WM-G20/3-A ZM-N 39.8 0.0 56.0 9.4 5.0 3. 8.4 2.5 7.6 24.6 8.5 5.7 8.9 40.9 34.8 3.2 7.7 4.6 5.7 4.4 4.2 9.9 9.8 00 254 423 238 28 78 23 545 447* 625 27 400 226 040 883 335 450 M2 370 400 365 360 25 248 WM-G20/4-A ZM-N 39.8 0.0 63.9 9.4 5.0 3. 8.4 2.5 20.5 24.6 8.5 5.7 8.9 40.9 37.4 3.2 7.7 4.6 5.7 4.4 4.2 9.9 9.8 00 254 623 238 28 78 23 545 52 625 27 400 226 040 95 335 450 M2 370 400 365 360 25 248 All dimensions are approximate only. Weishaupt reserves the right to make changes in light of future developments. * With motor mounted variable frequency drive (VFD) extended by approx 3/4 (20 mm) 7

Dimensions Appliance without spacer ring Minimum combustion chamber sizes 2 3 l2 60 l 60 d d3 WM-G0 ZM-N d d 2 d 3 I l 2 Minimum boiler opening without spacer ring........ 0.2 (260 mm) Minimum boiler opening with spacer ring............ 9.6 (244 mm) Minimum combustion chamber diameter........... 3.8 (350 mm) Minimum combustion chamber length WM0/2..................................... 33. (840 mm) WM0/3.................................... 47.2 (,200 mm) WM0/4.................................... 47.2 (,200 mm) Maximum boiler door depth, including refractory / insulation, without spacer ring.............................. 8.7 (220 mm) with spacer ring and gasket....................... 5.7 (45 mm) WM-G20 ZM-N d d 2 d 3 I l 2 Minimum boiler opening without spacer ring........ 4.6 (370 mm) Minimum boiler opening with spacer ring........... 3.6 (345 mm) Minimum combustion chamber diameter........... 7.7 (450 mm) Minimum combustion chamber length WM20/2.................................... 48.4 (,230 mm) WM20/3.................................... 64.2 (,630 mm) WM20/4..................................... 72 (,830 mm) Maximum boiler door depth, including refractory / insulation, without spacer ring.............................. 8.7 (220 mm) with spacer ring and gasket....................... 5.7 (45 mm) 2 l Appliance with spacer ring 6 5 60 egend Mounting plate (WM-G20 ZM-N: Depth 5/6 (8 mm) for installations with spa cer ring) 2 Gap 3 Refractory / insulation 4 Spacer ring, WM-G0 ZM-N: 2.9 (74 mm) Spacer ring, WM-G20 ZM-N: 2.8 (72 mm) (Optional for boilers with narrow burner opening) 5 Flange gasket: 5/6 (8 mm) 6 Gasket WM-G0 ZM-N: /6 (2 mm) Gasket WM-G20 ZM-N: 5/6 (8 mm) d2 Note: The boiler door refractory / insulation may be tapered ( 60 ). 4 l2 l 8

Installation and removal of burner s tubes Dimensions for WM-G0 and WM-G20 ZM-N WM-G ZM-N without spacer ring I3 Mounting tool minimum space requirement w/o spacer ring Mounting tool 3-parts I4 I0 I9 I8 I7 I5 I WM-G ZM-N with spacer ring I3 Mounting tool minimum space requirement with spacer ring Mounting tool guide tube WM 20 Mounting tool 3-parts I4 I0 I9 I I8 I7 I I6 I2 Burner model Dimensions in inches (top) and mm (bottom) l2 l3 l4 l5 l6 l l7 l8 l9 l0 l WM-G0/2-A ZM-N 32.8 833 2.9 74 33.5 852 8.2 208 4.7 060 44.6 34 8.9 227 23.0 585 2.0 305 6. 55 WM-G0/3-A ZM-N 32.8 833 2.9 74 47.9 26 8.2 208 56. 424 59.0 498 23.3 59 23.0 585 2.0 305 6. 55 WM-G0/4-A ZM-N 32.8 833 2.9 74 47.9 26 8.2 208 56. 424 59.0 498 23.3 59 23.0 585 2.0 305 6. 55 WM-G20/2-A ZM-N 39.8 00 2.8 72 4. 044 9.4 238 62.7 592 65.5 664 22.9 582 23.0 585 2.0 305 6. 55 2.2 30 WM-G20/3-A ZM-N 39.8 00 2.8 72 56.9 444 9.4 238 78.4 992 8.3 2064 38.7 982 23.0 585 2.0 305 6. 55 2.2 30 WM-G20/4-A ZM-N 39.8 00 2.8 72 64.6 640 9.4 238 86. 288 89.0 2260 46.4 78 23.0 585 2.0 305 6. 55 2.2 30 9

Weishaupt Corporation 6280 Danville Road Mississauga, ON 5T 2H7, Canada h: (905) 564 0946 Fax: (905) 564 0949 www.weishaupt-corp.com Weishaupt America Inc. 2587 Millenium Drive, Unit A Elgin, I 6024, USA h: (847) 53 5800 Fax: (847) 53 5855 www.weishaupt-america.com rint No. 832726, October 207 rinted in Germany. All rights reserved. Regular maintenance reduces heating costs and environmental pollution. Only a properly adjusted burner can save energy and be environmentally friendly. Behind each Weishaupt burner stands the whole Weishaupt customer service organization. The outstanding efforts made in maintenance and service justify the enormous trust placed in Weishaupt s burners, for at Weishaupt, product and customer service belong together. Weishaupt customer service is there for you all year round. Whenever you need help, be it the supply of spare parts, technical advice or a site visit. We are there when you need us. 20