A.O. Smith VB/VW 1500, 2000 Скачать руководство пользователя страница 18

18

VENTING SUPPORTS

Care  must  be  taken  in  the  installation  of  the  venting  system 

that adequate support is maintained throughout the installation 

process.    When  extending  more  than  10  feet  (3.0m)  vertically, 

vertical  support  kits  are  required  once  every  10  feet  (3.0m)  of 

vertical run. Vertical support is also re quired immedi ately after 

any transi tion (elbow, tee, etc.) to vertical of over 10 feet (3.0m) of 

run and after any offset in the vertical run.

The support brackets (supplied in the Vertical Support Kit) are to be 

secure ly fastened to a solid vertical member of the building using the 

appropriate fasteners; i.e., wood screws for wood framing, machine 

or tapping screws for structural steel or masonry anchors for solid 

masonry. The bracket should be located so that it will not interfere with 

any joints of the venting system. The bottom most support bracket 

should be located directly above the first transition from horizontal to 

vertical, see Figure 10. Refer to Figures 12, 12A, 12B and 12C.

If  a  means  of  support  for  the  brackets  are  not  available  and 

horizontal  vent  sections  are  present,  install  hanger  straps 

(made from non-combustible material) as close to the points of 

transition as possible. If the horizontal portions of the vent and/or 

vent connector are longer than 6 feet (2.0m), then install hanger 

straps every 6 feet (2.0m) to support the connector.

DO NOT rivet or screw the straps to the conduit or other wise 

puncture the conduit wall. Instead, wrap an extra loop of strap 

around the conduit to hold it in position, or attach the strap to 

the center screw of the double wall AL 29-4C

® 

 vent coupling,  

if applica ble.

VERTICAL INSTALLATION REQUIREMENTS

1.  The vent system must terminate at least 3 feet (1.0m) and 

no more than 6 feet (2.0m) above the roof line and no closer 

than 10 feet (3.0m) from any wall or verti cal structure. If the 

exhaust vent terminal is within 10 feet (3.0m) of a wall or 

parapet, it must extend a minimum of 2 feet (610mm) above 

the wall or parapet,  see Figures 11 and 12A.

2.  For direct vent installations, the total distance of the vent system 

from the boiler vent connector to the vertical vent termination 

should not exceed 70 equivalent feet (21.3m). A maximum of three 

90° elbows can be used. Minimum vertical vent is 7 equivalent 

feet (2.1m) for direct vent installations. Standard minimum vertical 

vent length is 7 feet (2.1m), plus Boot-Tee. See Figures 11, 12A, 

12B,  and  12C  for  differences  between  standard  and  direct  

vent installations.

3.  An AL 29-C

®

 Vent Vertical Vent Terminal must be used at 

the  termina tion.

4.  Maintain  a  minimum  of  6  feet  (2.0m)  separation  between 

the  air  intake  and  the  exhaust  terminals.

HORIZONTAL INSTALLATION REQUIREMENTS

1.  The  vent  system  must  terminate  with  a  AL  29-4C®  Vent  

Through-the-Wall  Termination  (TWT).  Plan  the  terminal 

location  based  on  the  dimensions  shown  in  Figure  9G.  Do 

not locate the terminal within 8 feet (2.5m) of an inside corner 

of  a  building  or  adjacent  to  outside  walls,  shrubs  or  other 

such objects that may cause adverse wind conditions in the 

immediate area.

2.  The  TWT  should  be  located  not  less  than  12  inches 

(305mm)  above  grade  or,  in  geographical  areas  where 

snow  accumulates,  no  less  than  12  inches  (305mm) 

above antici pated snow line. Ensure that TWT is protected 

against  blockage  which  may  occur  during  ice  build up  or 

snowstorms. 

  The  TWT  should  terminate  at  least  3  feet  (1.0m)  above 

any forced air inlet within 10 feet (3.0m), except when the 

forced air inlet is the combustion air intake of a direct vent 

appliance. The TWT should terminate at least 4 feet  (1.2m) 

below,  4  feet  (1.2m)  horizontally  from  or  1  foot  (305mm) 

above any door, window or gravity air inlet into any building 

as provided in the current edition of the nation al fuel gas 

code ANSI Z223.1, see Figure 9G. 

  In  addition,  a  minimum  clearance  of  4  feet  (1.2m) 

horizontally from, and in NO CASE ABOVE OR BELOW, 

unless  the  4  feet  (1.2m)  of  horizontal  distance  is  main-

tained from electric meters, gas meters, regulators and 

relief equip ment.

3.  This horizontal exhaust vent system must pitch upward toward 

the termination at 1/4 inch per foot (21mm per meter).

4.  The  TWT  is  designed  such  that  the  building  is  protected 

from  degradation  by  flue  gas  and  condensate.  Howev er,  if 

additional protection is desired, install against the wall a non-

corrosive metal sheet under the TWT.

5. Due  to  the  normal  formation  of  water  vapor  in  the 

combustion  process,  horizon tal  terminations  must  not 

be located over areas of pedestrian or vehicular traffic, 

(i.e.,  public  walkways  or  over  areas  where  condensate 

could  create  a  nuisance  or  hazard).  This  is  especially 

true  in  colder  climates  where  ice  buildup  is  likely  to 

occur.  A.O.  Smith  Corporation  will  not  be  held  liable 

for  any  personal  injury  or  property  damage  due  to  any 

dislodg ing of ice.

DIRECT VENT INSTALLATION REQUIREMENTS

Follow  guidelines  in  the  “HORIZONTAL  INSTALLATION 

REQUIREMENTS”  section  for  exhausting  of  flue  products.

BLOWER  CONDENSATE  TRAY

The VF boilers are equipped with a blower condensate tray 

installed  underneath  the  blower.  This  Condensate  Tray  is 

to  collect  any  moisture  that  forms  on  the  outside  of  the 

blower when the unit is direct vented and the outside air is 

colder  than  the  room  air  in  which  the  boiler  is  in. The  tray 

protects  against  moisture  reaching  some  of  the  electronic 

components  located  below  the  blower. 

Содержание VB/VW 1500, 2000

Страница 1: ...ur building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Installation and service mu...

Страница 2: ...45 Venting Maintenance 46 Heat Exchanger Preventive Maintenance 46 Tube Cleaning Procedure 46 Replacement Parts 46 LIMITED WARRANTY 43 TABLE OF CONTENTS 2 safe installation use and service 3 APPROVAL...

Страница 3: ...hazardous situation which if not avoided could result in property damage WARNING CAUTION CAUTION DANGER All safety messages will generally tell you about the type of hazard what can happen if you do...

Страница 4: ...etup and instructions before lighting Failure to implement the proper setup will result in improper and inefficient operation of the appliance resulting in production of increased levels of carbon mon...

Страница 5: ...hout water 4 Sooting If the boiler has been exposed to flooding it must be replaced LIQUEFIED PETROLEUM GAS MODELS Boilers for propane or liquefied petroleum gas LPG are different from natural gas mod...

Страница 6: ...d trademark of Allegheny Ludlum Corporation The installation must conform to all instructions contained in this manual and the local code authority having jurisdiction These should be carefully follow...

Страница 7: ...60hz and 30 amps TABLE 2 ROUGH IN DIMENSIONS Models VB VW 1500 VB VW 2000 Dimensions inches mm inches mm Flue Outlet Diameter 7 178 7 178 Air Intake Diameter 6 152 6 152 Water Inlet 2 5 inch NPT Water...

Страница 8: ...Igniter is a device that ignites the main burner see Figure 3 When 120 VAC is applied to the igniter suf fi cient heat is generated to ignite the main burner Although improvements have been made to s...

Страница 9: ...s to the gas valve during operation FLOW SWITCH The flow switch pictured in figure 6 activates when sufficient flow has been established Switch will not close when flow is restricted or is not present...

Страница 10: ...Temperature Probe allows a boiler to sense the actual water temperature inside the storage tank or hydronic heating loop The boiler will modulate its firing rate in response to the actual system tempe...

Страница 11: ...use type fusible plug cartridge or linkage T P relief valve should have a temperature rating of 210 F 99 C a pressure rating not exceeding lowest rated working pressure of any system compo nent and a...

Страница 12: ...far as is practical close all building doors and windows and all doors between the space in which the appliances remaining connected to the common venting system are located and other spaces of the bu...

Страница 13: ...zed louvers and grilles should be fixed in the open position FRESH AIR OPENINGS FOR CONFINED SPACES The following instructions should be used to calculate the size number and placement of openings pro...

Страница 14: ...wo permanent vertical ducts one commencing within 12 inches 300 mm of the top and one commencing within 12 inches 300 mm of the bottom of the enclosure The vertical ducts should communicate directly w...

Страница 15: ...into building or combustion air inlet to any other appliance 6 inches 15 cm for appliances up to 10 000 Btu hr 3 kW 12 inches 30 cm for appliances between 10 000 Btu hr 3 kW and 100 000 Btu hr 30kW 3...

Страница 16: ...let into building or combustion air inlet to any other appliance 6 inches 15 cm for appliances up to 10 000 Btu hr 3 kW 12 inches 30 cm for appliances between 10 000 Btu hr 3 kW and 100 000 Btu hr 30...

Страница 17: ...tion directly through an outside wall see Figure 11A 3 Horizontal Direct Vent using TWT to exhaust flue prod ucts and PVC piping to bring combus tion air to the boiler from the outside see Figures 12...

Страница 18: ...um of 6 feet 2 0m separation between the air intake and the exhaust terminals HORIZONTAL INSTALLATION REQUIREMENTS 1 The vent system must terminate with a AL 29 4C Vent Through the Wall Termination TW...

Страница 19: ...r parapet it must extend a minimum of 2 610mm above the wall or parapet Joints are not joined to show vent pipe orientation FIGURE 11 VERTICAL TERMINATION FIGURE 11A HORIZONTAL THROUGH THE WALL TERMIN...

Страница 20: ...ED CARBON MONOXIDE DETECTORS Each carbon monoxide detector as required in accordance with the above provisions should comply with NFPA 720 and be ANSI UL 2034 listed and CSA certified SIGNAGE A metal...

Страница 21: ...nt terminal NOTES If the exhaust vent terminal is within 10 3 0m of a wall or parapet it must extend a minimum of 2 610mm above the wall or parapet Joints are not joined to show vent pipe orientation...

Страница 22: ...R PARAPET ON SIDEWALL VENT INSTALLATION REFER TO 11A and 12 FOR SPACING SPECIFICATIONS FOR EXHAUST AND AIR INTAKE PIPE INSTALLATIONS CLEARANCES SUPPORT ETC REFER TO FIGURES 11 AND 11A VERTICAL AIR INT...

Страница 23: ...expansion tank as shown in Figure 13 The sizing of the expansion tank for a closed system is very important and is directly related to the total water volume of the system Refer to Systems and Equipme...

Страница 24: ...ee support phone number on the back of this manual to order the Quad Thermistor Probe On domestic hot water applications the Remote Temperature Probe or the optional Quad Thermistor Probe must be inst...

Страница 25: ...ugh improper testing of gas lines or emergency malfunction of supply system the gas valves must be checked for safe operation Make sure that the outside vents on supply regulators and the safety vent...

Страница 26: ...the three voltage tests below Refer to Figure 12D for these tests Confirm RMS voltage between H and GND 108 VAC minimum 132 VAC maximum N and H 108 VAC minimum 132 VAC maximum N and GND 1 VAC maximum...

Страница 27: ...8 000 12 636 000 11 700 000 11 232 000 10 452 000 9 360 000 8 580 000 7 800 000 7 176 000 kW 10 508 7 219 5 848 4 980 4 432 4 021 3 701 3 427 3 290 3 061 2 741 2 513 2 284 2 102 Table 7 Suggested Pipe...

Страница 28: ...NE BOILER PRIMARY SECONDARY HYDRONIC PIPING SYSTEM LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP REMOTE TEMPERATURE PROBE DRAIN FULL PORT BALL VALVE TEMPERATURE GAGE...

Страница 29: ...NK RECOVERY SYSTEM ONE TEMPERATURE LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP REMOTE TEMPERATURE PROBE DRAIN FULL PORT BALL VALVE TEMPERATURE GAGE WATER FLOW SWITC...

Страница 30: ...STORAGE TANK RECOVERY SYSTEM ONE TEMPERATURE LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP REMOTE TEMPERATURE PROBE DRAIN FULL PORT BALL VALVE TEMPERATURE GAGE WATER...

Страница 31: ...DB F7 3 AMP FUSE PDB F3 7 5 AMP FUSE MCB II F1 24VDC GENERATION MCB II R K6 RELAY COIL MCB II MR HIGH LIMIT FLOW SWITCH LWCO SWITCH OPTIONAL LOW GAS SWITCH HIGH GAS SWITCH OPTIONAL EXTERNAL ENABLE OPT...

Страница 32: ...ed 7 Must be ON low gas switch always used 8 Spare n a 9 Spare n a 10 Spare n a MCB II DETAIL B DIP SWITCH SW2 FUNCTIONS ON IS POS ITION AWAY FR OM BOAR D S E DGE 1 Spare not used 2 High gas switch ON...

Страница 33: ...AL LEGEND 120VAC WIRING LOW VOLTAGE WIRING CAT 5 COMM CABLE AVAILABLE OPTION NOTE1 IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE MUST BE REPLACED REPLACE WITH EQUIVALNET GAUGE WIRE INSULA...

Страница 34: ...essure Close bypass valve and permit pressure to be established by the pressure reducing valve 2 Vent all high points in system to purge system of air Provisions should be made to permit manual ventin...

Страница 35: ...make further adjustments on the outlet and bypass valves until the desired inlet and outlet water temperatures are reached MANIFOLD PRESSURE CONNECTIONS Take the manifold pressure refer to Table 1 by...

Страница 36: ...36 LIGHTING AND OPERATING INSTRUCTIONS...

Страница 37: ...fully adjust the low fire gas setting to achieve the CO2 level prescribed in above reference table Note The rotation of the Low Fire adjustment is opposite of the High Fire as follows Clockwise rotati...

Страница 38: ...t will operate with the voltage and current level provided Pump MCB 120VAC required on systems that do not have an external pump Provides electrical power to directly operate a pump or the coil of an...

Страница 39: ...idle state as displayed by the Standby LED The control will continue to monitor heat demand and state of other system devices Upon a drop of water temperature below the set parameters the control will...

Страница 40: ...when the fault state is exited Hard Fault State See Fault Description section for list of soft and Auto Reset faults The pump remains on for the selected post circulate time to cycle the hot water ou...

Страница 41: ...soft lockout condition will occur and burner will be shut off This fault condition is automatically cleared when temperature drops below high limit setpoint minus high limit differential AUTO HIGH LI...

Страница 42: ...nwards in screens to reach a desired item and to change setpoints and user settings They have an auto increment decrement feature for some of the configurations and values When you first press one of...

Страница 43: ...the MCB and reading the resistance across the two active pinsontheconnectoratthe end of the probe cable The value should be approximately 0 ohms when the temperature of the probe is less than 220 F L...

Страница 44: ...ction of the servo pressure regulator Replace the valve and add a gas filter in front of the new valve preventative maintenance This is a pre mix burner system The flame is not supposed to be directly...

Страница 45: ...to move at this point FOR DIRECT VENT UNITS It is necessary to loosen and slide the rubber coupling on the blower adaptor in order to move the blower 4 Loosen the seven bolts on the blower adapter at...

Страница 46: ...xist As the water is heated these tend to drop out depositing as scale or lime This scale must be removed before the heat exchanger tubes become blocked DELIMING The amount of calcium carbonate lime r...

Страница 47: ...his boiler under state or provincial law are limited to one 1 year duration for the boiler or any of its parts Some states and provinces do not allow limitations on how long an implied warranty lasts...

Страница 48: ...48 500 Tennessee Waltz Parkway Ashland City TN 37015 Technical Support 800 527 1953 Parts 800 433 2545 Fax 800 644 9306 www hotwater com...

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