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WARNING

Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal 

injury or loss of life.  Failure to follow all instructions in the proper order can cause personal injury or death.  

Read and understand all instructions, including all those contained in component manufacturers manuals 

which are provided with the boiler before installing, starting-up, operating, maintaining or servicing this 

boiler.  Keep this manual and literature in legible condition and posted near boiler for reference by owner 

and service technician.
This boiler requires regular maintenance and service to operate safely.  Follow the instructions contained 

in this manual.
Installation, maintenance, and service must be performed only by an experienced, skilled and knowledgeable 

installer or service agency.
All heating systems should be designed by competent contractors and only persons knowledgeable in 

the layout and installation of hydronic heating systems should attempt installation of any boiler.
Installation is not complete unless a pressure relief valve is installed as shown in Figure 8.1 located in 

Section VIII, “System Piping” of this manual.
It is the responsibility of the installing contractor to see that all controls are correctly installed and are 

operating properly when the installation is completed.  

This boiler is not suitable for installation on combustible flooring.  See Figure 3 for means of installing 

boiler over a combustible floor.  Do not install boiler on carpeting.

Do not tamper with or alter the boiler or controls.

Inspect flueways at least once a year - preferably at the start of the heating season.  The inside of the 

combustion chamber, the vent system and boiler flueways should be cleaned if soot or scale has accumulated.

When cleaning this boiler, take precaution to avoid damage to burner swing door insulation.  If damaged, 

or if there is evidence of previous damage, burner swing door insulation must be replaced immediately.

Oil Burner and Controls must be checked at least once a year or as may be necessitated.
Do not operate boiler with jumpered or absent controls or safety devices.
Do not operate boiler if any control, switch, component, or device has been subject to water.
Boiler construction materials, products of combustion and the fuel contain alumina, silica, heavy metals, 

carbon monoxide, nitrogen oxides, aldehydes and/or other toxic or harmful substances which can cause 

death or serious injury and which are known to the state of California to cause cancer, birth defects and 

other reproductive harm.  Always use proper safety clothing, respirators and equipment when servicing 

or working nearby the appliance.

This boiler contains very hot water under high pressure.  Do not unscrew any pipe fittings nor attempt 

to disconnect any components of this boiler without positively assuring the water is cool and has no 

pressure.  Always wear protective clothing and equipment when installing, starting up or servicing this 

boiler to prevent scald injuries.  Do not rely on the pressure and temperature gauges to determine the 

temperature and pressure of the boiler.  This boiler contains components which become very hot when 

the boiler is operating.  Do not touch any components unless they are cool.

DANGER

DO NOT store or use gasoline or other flammable vapors or liquids in the vicinity of this or any other appliance.  

Содержание TWZ Series

Страница 1: ...lus Control System WARNING Improper installation adjustment alteration service or maintenance can cause property damage injury or loss of life For assistance or additional information consult a qualif...

Страница 2: ......

Страница 3: ...the manufacturing process as well as condensation during storage Surface rust is normal and does not affect the performance or longevity of a boiler All boilers must be installed in accordance with N...

Страница 4: ...least once a year preferably at the start of the heating season The inside of the combustionchamber theventsystemandboilerfluewaysshouldbecleanedifsootorscalehasaccumulated When cleaning this boiler t...

Страница 5: ...service Improper installation adjustment alteration service or maintenance may cause serious property damage personal injury or death DO NOT DISCONNECT PIPE FITTINGS on the boiler or in the heating s...

Страница 6: ...isions for adequate combustion and ventilation air This boiler is supplied with controls which may cause the boiler to shut down and not re start without service If damage due to frozen pipes is a pos...

Страница 7: ...ENERAL CONFIGURATION GAL HR MBH MBH Gal 1 25 1 50 1 20 1 75 2 00 BURNER INPUT TWZ175 TWZ200 B C 0 65 0 75 1 00 0 90 84 0 86 0 TWZ120 241 TWZ065 TWZ075 TWZ100 TWZ090 TWZ125 TWZ150 212 A 86 1 85 8 84 3...

Страница 8: ...irect water heater size the boiler to have either the Heating Capacity required for the Mega Stor or the I B R Net Rating required for the heating system whichever results in the larger boiler For sys...

Страница 9: ...e minimum clearances shown below Except as noted these clearances apply to all combustible con struction as well as noncombustible walls ceilings and doors Also see Figure 4 0 Front 24 Left Side 6 Rig...

Страница 10: ...8 FIGURE 4 1 INSTALLATION OVER A COMBUSTIBLE FLOOR FIGURE 4 0 CLEARANCES...

Страница 11: ...determine whether the boiler room is a confined space a Total the input of all appliances in the boiler room in thousands of BTU hr Round the result to the next highest 1000 BTU hr b Find the volume o...

Страница 12: ...ing takes into account the blocking effect of mesh grills and louvers Where screens are used they must be no finer than 4 x 4 mesh For Buildings of Unusually Tight Construction 1 Openings must be inst...

Страница 13: ...11 FIGURE 5 1 ALLAIR FROM OUTDOORS VENTILATED CRAWL SPACE AND ATTIC FIGURE 5 2 ALLAIR FROM OUTDOORS VIA VENTILATED ATTIC...

Страница 14: ...12 FIGURE 5 3 ALLAIR FROM OUTDOORS USING OPENINGS INTO BOILER ROOM FIGURE 5 4 ALLAIR FROM OUTDOORS USING HORIZONTAL DUCTS INTO BOILER ROOM...

Страница 15: ...y Chimney The masonry chimney must be constructed in accordance with the latest edition of Standard for Chimneys Fireplaces Vents and Solid Fuel Burning Appliances NFPA 211 and lined with a clay liner...

Страница 16: ...ill maintaining the proper clearance from the horizontal vent connector to combustibles and the proper pitch called for in 7 above 9 Vent pipe should be installed above the bottom of the chimney to pr...

Страница 17: ...appliance operation and service circulator replacement etc Operation of this boiler with continuous return temperatures below 120 f can cause severe heat exchanger corrosion damage Operation of this b...

Страница 18: ...Required Either a manual or automatic fill valve may be used The ideal location for the fill is at the expansion tank 5 Automatic Air Vent Required At least one automatic air vent is required Manual v...

Страница 19: ...irect water heater piping to obtain the boiler water flow through the indirect water heater called for by the indirect water heater manufacturer 2 Large Water Volume Systems The piping shown in Figure...

Страница 20: ...red for the heating system loop There are several other ways to connect low temperature systems to the non condensing boilers like the TWZ such as four way mixing valves and variable speed injection p...

Страница 21: ...he boiler Install unions anywhere in the tankless heater piping that will facilitate removal of the heater VIII Tankless Heater Piping If the TWZ is installed with an optional tankless heater pipe the...

Страница 22: ...139 04 for installation in Canada Refer also to the instruction manuals provided with the burner and oil pump WARNING Under no circumstances can copper with sweat style connectors be used Do not use c...

Страница 23: ...rted to a one pipe gravity system as doing so will result in lower inlet line flow and longer filter life d TWO PIPE LIFT SYSTEM used when a fuel oil storage tank is located below an oil burner fuel p...

Страница 24: ...continuous run On two pipe systems the return line should terminate 3 4 above suction line depth within the storage tank Refer to the pump manufacturer s instructions for tube sizing information 8 All...

Страница 25: ...ed safety limits such as low water cutoffs and temperature limit devices in series with the 120V circuit used to power the boiler Do not alter the boiler s factory wiring when adding an additional lim...

Страница 26: ...se upon a call for heat Follow thermostat manufacturer s instructions To insure proper thermostat operation avoid installation in areas of poor air circulation hot spots near any heat source or in dir...

Страница 27: ...25 FIGURE 10 0 CONNECTIONS DIAGRAM BOILERS WITH OR LESS TANKLESS HEATER...

Страница 28: ...26 FIGURE 10 1 CONNECTIONS DIAGRAM FOR BURNER PRIMARY CONTROLS Carlin 40200 Beckett 7505 Riello 530SE...

Страница 29: ...ort immediately or after prepurge timing has expired if a burner is so equipped Refer to burner instructions for more details 15 Immediately upon firing the boiler check the smoke level If the smoke l...

Страница 30: ...tem for leaks Repair any leaks found at once After the above checks have been completed leave thermostat s at desired setting Leave all instructions provided with the boiler with owner or in boiler ro...

Страница 31: ...1 0 11 0 11 0 MAX 12 5 12 5 12 5 12 5 12 5 12 5 12 5 12 5 TWZ125 TWZ150 TWZ120 TWZ175 TWZ200 0 02 0 02 0 02 0 02 BOILER MODEL TWZ065 TWZ075 TWZ100 TWZ090 1 1 1 0 02 0 02 0 02 0 02 1 1 1 1 1 TABLE 11 0...

Страница 32: ...iler water temperature during a call for space heat based on thermostat cycling patterns For additional information see Part B of this section FIGURE 12 0 HYDROSTAT 3250 PLUS CONTROL COMPONENT LAYOUT...

Страница 33: ...uel while continuing to provide comfort to the house If the heating system is unable to supply needed heat to the house the ECONOMY Dial should be turned to a lower setting example In a three zone hou...

Страница 34: ...as Pro 2 Turn the HI TEMP dial to select feature 2 3 Push the Test Settings Button to c for Celsius or F for Fahrenheit 1 Reset LO TEMP and HI TEMP settings to desired temperatures see page 28 3 Manu...

Страница 35: ...on the control s Thermal Targeting feature actively sets varying differentials based on system conditions This option allows for selecting a 10 20 or 30 degree fixed differential when the Economy feat...

Страница 36: ...gure 12 3 TABLE 12 2 DEFAULT SETTINGS Dial Setting Feature Options Description Default Setting 1 Thermal Pre Purge Off on Purge Inactive Purge Active Off 2 Fahrenheit or Celsius F c Degrees Fahrenheit...

Страница 37: ...iler temperature drops below the differential set point at which point the boiler will be allowed to fire again See Differential explanation on page 31 NOTE This LED illuminates regularly during norma...

Страница 38: ...ps as needed All vent piping joints must be flue gas leak free and secured with sheet metal screws 3 Inspect the vent system a Make sure that the vent system is free of obstructions and soot b Make su...

Страница 39: ...he well using pipe sealing compound Teflon tape is not recommended 11 Fire the boiler and check it out using the procedure outlined in Start up and Checkout This must include checking the burner adjus...

Страница 40: ...g sleeved loose fitting clothing 3 Gloves 4 Eye Protection Take steps to assure adequate ventilation Wash all exposed body areas gently with soap and water after contact Wash work clothes separately f...

Страница 41: ...into the building resulting in odor complaints 6 Dirt The use of a fuel filter is good practice Accidental accumulation of dirt in the fuel system can clog the nozzle or nozzle strainer and produce a...

Страница 42: ...al this table and flow charts assume that there are no loose or miswired electrical connections Before using these tables inspect all electrical connections on the boiler to make sure that they are ti...

Страница 43: ...th the clip contacting the well 2 Remove well and examine for excessive residue build up Clean and re install Boiler will not maintain low limit temperature Check for overlapping high temperature sett...

Страница 44: ...Temp Active LED will be on at all times when the control is powered Check for 120 VAC on terminals L1 and L2 YES Is the Red LED LOW WATER On YES NO Is the Yellow LED HI TEMP On YES The Control is Sen...

Страница 45: ...echeck wiring Make sure that burner is wired to B1 Burner should never fire when red or yellow LED is lit Is either Yellow LED On The Control has Reached Target or High Limit Temperature The Control i...

Страница 46: ...0025 1 ea 1 ea 1 ea 1 ea 1 ea 1 ea 1 ea 1 ea 1 ea 11 REFRACTORY BLANKET 1 ea 275003 275003 275003 275004 275004 275004 275005 275005 275005 13 BURNER SWING DOOR HINGE 290035 2 ea 2 ea 2 ea 2 ea 2 ea 2...

Страница 47: ...45...

Страница 48: ...96 002 1 ea 1 ea 1 ea 1 ea 1 ea 1 ea 1 ea 1 ea 1 ea 56 TRIDICATOR GAUGE 95 069 1 ea 1 ea 1 ea 1 ea 1 ea 1 ea 1 ea 1 ea 1 ea 60 BECKETT BURNER ASSY NOTE 1 1 ea 130511 130512 130513 130514 130515 13051...

Страница 49: ...47...

Страница 50: ...48 SERVICE RECORD DATE SERVICE PERFORMED...

Страница 51: ...49 Notes...

Страница 52: ...50 Manufacturer of Hydronic Heating Products P O Box 14818 3633 I Street Philadelphia PA 19134 www crownboiler com...

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