Crown-boiler TWZ175 User Manual

1TWZ Series Oil-Fired Hot Water Boilers INSTALLATION INSTRUCTIONS These instructions must be afxed on or adjacent to the boilerModels:• TWZ065• TWZ07

8 FIGURE 5: ALL AIR FROM OUTDOORS, VENTILATED CRAWL SPACE AND ATTIC FIGURE 6: ALL AIR FROM OUTDOORS,

9 FIGURE 7: ALL AIR FROM OUTDOORS, USING OPENINGS INTO BOILER ROOM FIGURE 8: ALL AIR FROM OUTDOORS, USING HORI

10VI VentingVent installation must be in accordance with local building codes, or the local authority having jurisdiction.Typical vent installation i

112) Acceptable Vent Connectors - The following may be used for vent connectors:• Listed Type L vent.• Single Wall Galvanized Pipe - Use 0.018” (2

12 FIGURE 10: STANDARD BOILER PIPINGStandard Piping Figure 10 shows typical boiler system connections on a single zone system. Additional informat

131) Relief valve (Required) - Mount the relief valve on the top left side of the boiler as shown in Figure 10 using the 3/4” nipple provided. The r

14 FIGURE 12: BOILER BYPASS PIPING FIGURE 11: INDIRECT WATER HEATER BOILER SIDE PIPINGPiping for Special SituationsCertain types of heating system

15 FIGURE 13: ISOLATION OF BOILER FROM SYSTEM WITH A HEAT EXCHANGER3) Low Temperature Systems - Some systems, such as radiant tubin

162) Flow Restrictor (Recommended) - If water is drawn from the tankless coil at a rate in excess of the rating in Table 1b, the temperature of the ho

17FIGURE 14: TANKLESS HEATER PIPINGIX Fuel Line PipingWARNING• UNDERNOCIRCUMSTANCESCANCOPPERWITHSWEATSTYLECONNECTORSBE USED.• DONOTUSEC

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18Depending on the location of the fuel oil storage tank in relation to an oil burner, there are four types of oil piping systems generally being used

19 FIGURE 16: ONE-PIPE LIFT SYSTEM7) Attach required piping between burner fuel pump and fuel oil storage tank. Install one fuel shut-off valve nea

20 FIGURE 18: TWO-PIPE LIFT SYSTEMX WiringSingle Zone Wiring1) 120 Volt Wiring - The boiler should be provided with its own 15A branch circuit w

21Wiring Variations1) Multiple Circulator Zones – Figure 20 shows wiring for two or more circulator zones using Honeywell R845As. One R845A is requir

22 FIGURE 20: WIRING DIAGRAM, CIRCULATOR ZONE WIRING USING HONEYWELL R845A’s (FACTORY BOILER WIRING NOT SHOWN - SEE FIGURE

23XI Start-up and CheckoutUse the following procedure for initial start-up of the boiler:1) Ensure that the boiler and entire heating system are lle

2423) Check for clean cutoff of the burner. Air in the oil line between fuel pump and nozzle will compress, while burner is running, and expand, when

25TABLE 3b: CARLIN BURNER CONFIGURATION AND SETUP DATA BURNER MODELEZ-1HP EZ-1HP EZ-1HP EZ-1HP EZ-1HP EZ-1HP EZ-1HP EZ-2HPSTANDARDDEL. HAGO HAGO

26 f) Thoroughly brush boiler ueways from the top and diagonally between casting pin rows. Be careful when brushing the rear passage not to damage t

27Important Product Safety Information Refractory Ceramic Fiber Product Warning: The Parts list designates parts that contain refractory ceramic fib

1FOLLOW ALL INSTRUCTIONS and warnings printed in this manual and posted on the boiler.INSPECT THE BOILER, BURNER AND CONTROLS ANNUALLY. To keep your b

2865 75 100 90 125 150 120 175 2001 HEAT EXCH ASSY. WITH COIL OPENING 1 ea. 270013 270013 270013 270014 270014 270014 270015 270015 2700151 HEAT EXCH

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3065 75 100 90 125 150 120 175 20040 REVERSIBLE SIDE JACKET PANEL (RED) 2 ea. 270523 270523 270523 270524 270524 270524 270525 270525 27052540 REVERSI

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32PN: 980270 Rev 9TWZ - 04/12Manufacturer of Hydronic Heating ProductsP.O. Box 14818 3633 I. StreetPhiladelphia, PA 19134www.crownboiler.com

2 Table of Contents I. Product Description ... 2 II. Specications ...

3TABLE 1a: GENERAL SPECIFICATIONS Notes:1. Net Ratings are based on piping and pick-up allowances of 1.15. 2. Burner Capacity Rating, GPH is based

43) Make sure that the boiler is correctly sized: • For heating systems employing convection radiation (baseboard or radiators) use an industry acce

5 FIGURE 2: CLEARANCES FIGURE 3: INSTALLATION OVER A COMBUSTIBLE FLOOR

6V Air for Combustion and VentilationSufcient fresh air must be supplied for combustion and ventilation. Provisions for combustion and ventilation a

7 FIGURE 4: BOILER INSTALLED IN CONFINED SPACE, ALL AIR FROM INSIDE2) Unconned Space - Natural inltration into the boiler room will norm