Crown TWZ120 - Manual - manualsarea.com

Page 2 - Circulator Supplied Loose - May Be Installed On Supply Or Return.

2 Table of Contents I. Product Description ............................................................. 1 II. Specifications ....................................................................... 1 III. Before Installing ................................................................... 2 IV. Loc...

Page 3 - TABLE 1a: GENERAL SPECIFICATIONS; III Before Installing; Installation of Oil Burning Equipment; TABLE 1b: OPTIONAL TANKLESS HEATER RATINGS; Two problems arise when any oil-fired appliance is power vented:; CROWN

3 TABLE 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 on #2 oil with a GrossHeating Value equal to 140000 BTU/Gal. 3. Maximum Working Pressure, Water - 50 PSI. 4. Tankless Heater Ratings based on I=W=H tes...

Page 4 - ) Make sure that the boiler is correctly sized:; IV Locating the Boiler

4 3) Make sure that the boiler is correctly sized: • For heating systems employing convection radiation (baseboard or radiators) use an industry accepted sizingmethod such as the I=B=R Heat Loss Calculation Guide (Pub. #H21 or #H22) published by the Hydronics Institute in Berkeley Heights, NJ. • For...

Page 5 - FIGURE 3: INSTALLATION OVER A COMBUSTIBLE FLOOR; FRONT VIEW

5 FIGURE 2: CLEARANCES 0. 47 " Sheet Meta l (24 GA o r Thic ker) Ho llow Ma sonry Bloc ks Op ening s Alig ned To Perm it Free Air Circ ula tio n 4“ MIN. Co m b ustib le Surfa c e FIGURE 3: INSTALLATION OVER A COMBUSTIBLE FLOOR 4 6 6 18* 6 24 * CLEARANCE FROM SINGLE WALL CONNECTOR TO COMBUSTIBLE ...

Page 6 - V Air for Combustion and Ventilation; For Buildings of Other than Unusually Tight Construction

6 V Air for Combustion and Ventilation Sufficient fresh air must be supplied for combustion and ventilation. Provisions for combustion and ventilation air for oilburning equipment must be made in accordance with Section 1.5, Air for Combustion and Ventilation, in the latest editionof Installation of...

Page 7 - For Buildings of Unusually Tight Construction:; space, which communicates directly with the outdoors.

7 FIGURE 4: BOILER INSTALLED IN CONFINED SPACE, ALL AIR FROM INSIDE used, they must be no finer than ¼” (4 x 4) mesh. For Buildings of Unusually Tight Construction: 1 ) Openings must be installed between the boiler room and the outdoors or a ventilated space, such as an attic or crawl space, which c...

Page 10 - VI Venting; Standard

10 FIGURE 9: TYPICAL VENT SYSTEM INSTALLATION AND COMPONENTS VI Venting Vent installation must be in accordance with local building codes, or the local authority having jurisdiction. Typical vent installation is illustrated by Figure 9. The components of vent installation are the vent connector (bre...

Page 11 - downward or have sags. Vent pipe must be securely supported.; TABLE 2: MINIMUM RECOMMENDED BREECHING AND; Min. Recommended Chimney Size and Height

11 6 ) Prior to boiler installation, inspect chimney for obstructions or other defects and correct as required. Clean chimney as necessary. 7 ) Vent pipe should slope upward from boiler not less than one inch in four feet. No portion of vent pipe should run downward or have sags. Vent pipe must be s...

Page 12 - FIGURE 10: STANDARD BOILER PIPING; CAUTION; Installation of Residential Hydronic Systems; VII System Piping

12 FIGURE 10: STANDARD BOILER PIPING CAUTION • INSTALL BOILER SO THAT ALL ELECTRICAL COMPONENTS ARE PROTECTED FROM WATER (DRIPPING,SPRAYING, RAIN, ETC.) DURING APPLIANCE OPERATION AND SERVICE (CIRCULATOR REPLACEMENT,ETC.). • OPERATION OF THIS BOILER WITH CONTINUOUS RETURN TEMPERATURES BELOW 120°F CA...

Page 13 - DANGER; PIPE RELIEF VALVE TO A SAFE LOCATION; IMPORTANT

13 2 ) Circulator (Required) - Figure 10 shows the ideal location of the circulator which is in the supply piping immediately downstream of the expansion tank. A less ideal, but acceptable, location for most residential circulators is in the return(if this is done, be sure that adequate clearance ex...

Page 14 - Piping for Special Situations

14 FIGURE 12: BOILER BYPASS PIPING FIGURE 11: INDIRECT WATER HEATER BOILER SIDE PIPING Piping for Special Situations Certain types of heating systems have additional requirements. Some of the more common variations follow: 1 ) Indirect Water Heaters - Figure 11 shows typical indirect water heater pi...

Page 15 - damage to a cast iron boiler such as the TWZ. Some examples include:

15 FIGURE 13: ISOLATION OF BOILER FROM SYSTEM WITH A HEAT EXCHANGER 3 ) Low Temperature Systems - Some systems, such as radiant tubing systems, require the system water temperature to be limited to a value below the temperature of the water leaving the TWZ. These systems also typically have returnte...

Page 16 - WARNING; A mixing valve does not eliminate the risk of scalding.; VIII TANKLESS HEATER PIPING

16 2) 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 hot water may be too low to be of use. The use of a flow restrictor will prevent this problem bylimiting the rate at which water can pass through the t...

Page 17 - FIGURE 14: TANKLESS HEATER PIPING; IX Fuel Line Piping

17 FIGURE 14: TANKLESS HEATER PIPING IX Fuel Line Piping Fuel line piping design, materials and construction must be in accordance with local building codes, requirements of thelocal authority having jurisdiction, and, the latest edition of Installation of Oil-Burning Equipment (ANSI/NFPA 31). Refer...

Page 20 - X Wiring; Ground (“green” or bare) - Ground screw on case of L8148 or L8124; Wiring Variations

20 X Wiring WARNING All wiring and grounding must be done in accordance with the authority having jurisdiction or, in the absence of suchauthority, with the National Electric Code (ANSI/NFPA70). Single Zone Wiring 1) 120 Volt Wiring - The boiler should be provided with its own 15A branch circuit wit...

Page 22 - XI Start-up and Checkout; Use the following procedure for initial start-up of the boiler:; (FACTORY BOILER WIRING NOT SHOWN - SEE FIGURE 19); NEVER ATTEMPT TO FILL A HOT EMPTY BOILER.

22 XI Start-up and Checkout Use the following procedure for initial start-up of the boiler: 1) Ensure that the boiler and entire heating system are filled with water. 2) Check all new piping for leaks and purge heating system piping sections that are air bound. 3) Verify that the vent system is comp...

Page 25 - XII Service and Maintenance; The following procedure should be performed on an annual basis:; TABLE 3c: RIELLO BURNER CONFIGURATION AND SETUP DATA

25 XII Service and Maintenance The following procedure should be performed on an annual basis: 1) Turn off electrical power and oil supply to the boiler. 2) Clean the boiler as follows: a) Remove vent connector and piping. b) Remove barometric draft regulator. c) Remove top jacket panel to gain acce...

Page 26 - a) Make sure that the vent system is free of obstructions and soot.

26 CAUTION WATER LEAKS CAN CAUSE SEVERE CORROSION DAMAGE TO THE BOILER OR OTHER SYSTEMCOMPONENTS. REPAIR ANY LEAKS FOUND IMMEDIATELY. IMPORTANT • CLEAN THE BOILER EVEN IF THERE ARE NO SIGNIFICANT SOOT DEPOSITS. FAILURE TOREMOVE ALL SULFUR AND ASH DEPOSITS ANNUALLY CAN CAUSE SEVERE CORROSIONDAMAGE. •...

Page 27 - Warning; AVOID Breathing Fiber Particulates and Dust; Precautionary Measures

27 2 6 Important Product Safety Information Refractory Ceramic Fiber Product Warning : The Parts list designates parts that contain refractory ceramic fibers (RCF). RFC has been classified as a possible human carcinogen. When exposed to temperatures about 1805°F, such as during direct flame contact,...

Page 32 - Manufacturer of Hydronic Heating Products

32 Manufacturer of Hydronic Heating Products P.O. Box 14818 3633 I. Street Philadelphia, PA 19134 7HO)D[ZZZFURZQERLOHUFRP PN980270 Rev 6 09/10