Bryant BW9, Инструкция по установке, запуску и эксплуатации

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H. Removal of Existing Boiler from Common Vent System
When an existing Category I furnace is removed or replaced, the original venting system may no longer be sized to properly vent the remaining
attached appliances. An improperly sized Category I venting system could cause the formation of condensate in the furnace and vent, leakage of
condensate and combustion products, spillage of combustion products into the living space, etc.
WARNING:
CARBON MONOXIDE POISONING HAZARD
Failure to follow the steps outlined below for each appliance connected to the venting system being placed into operation
could result in carbon monoxide poisoning or death.
The following steps shall be followed for each appliance connected to the venting system being placed into operation, while
all other appliances connected to the venting system are not in operation:
1. Seal any unused openings in venting system.
2. Inspect the venting system for proper size and horizontal pitch, as required in the National Fuel Gas Code, ANSI
Z223.1-2002/NFPA 54-2002 or the CSA B149.1, Natural Gas and Propane Installation Code and these instructions.
Determine that there is no blockage or restriction, leakage, corrosion and other deficiencies, which could cause an unsafe
condition.
3. As far as is practical, close all building doors and windows and all doors between the space in which the appliance(s)
connected to the venting system are located and other spaces of the building.
4. Close fireplace dampers.
5. Turn on clothes dryers and any appliance not connected to the venting system. Turn on any exhaust fans, such as range
hoods and bathroom exhausts, so they are operating at maximum speed. Do not operate a summer exhaust fan.
6. Follow the lighting instructions. Place the appliance being inspected into operation. Adjust the thermostat so appliance
is operating continuously.
7. Test for spillage from draft hood equipped appliances at the draft hood relief opening after 5 minutes of main burner
operation. Use the flame of a match or candle.
8. If improper venting is observed during any of the above tests, the venting system must be corrected in accordance with
the National Fuel Gas Code, ANSI Z223.1-2002/NFPA 54-2002 and/or CSA B149.1, Natural Gas and Propane Installation
Code.
9. After it has been determined that each appliance connected to the venting system properly vents when tested as outlined
above, return doors, windows, exhaust fans, fireplace dampers and any other gas-fired burning appliance to their previous
conditions of use.
PROCEDURE 2—PLACING THE BOILER
The boiler should be placed to provide the most direct connections to the combustion air, vent and system piping as possible. Place crated boiler
as close to the selected location as possible and unpackage boiler. The unpackaged boiler may be moved into position with an appliance dolly or
2-wheel hand truck. The dolly or hand truck should be inserted under the left hand side of the boiler. It is possible to slide the boiler for a short
distance on a smooth floor or surface.
NOTE: Refer to manual section
″
Locating the Boiler
″
for required clearances for servicing and maintenance.
PROCEDURE 3—NEAR BOILER PIPING
CAUTION: Copper supply and return piping must NOT be installed directly into aluminum boiler section castings due
to galvanic corrosion between dissimilar metals. Iron or steel bushings or pipe nipples should be used between copper
system piping and boiler to make final connection to boiler. Also the use of dielectric unions is acceptable. The packaged
boiler is furnished with iron piping in the front boiler section for the supply and return connections.
When the installation of the boiler is for a new heating system, first install all of the radiation units (panels, radiators, baseboard, or tubing) and
the supply and return mains. After all heating system piping and components have been installed, make final connection of the system piping to
the boiler. A hot water boiler installed above radiation level must be equipped with a field-supplied accessory low water cut off device. A periodic
inspection is necessary, as if flushing of float type devices, per low water cut off manufacturers specific instructions.
A. Supply and Return Lines
The packaged boiler unit is set up to receive 1-1/4–in. NPT supply and return piping from top access. The boiler unit can also be piped from the
left side by turning supply elbow, and from the rear of the unit by removing plugs in the rear boiler section.
NOTE: The circulator pump is furnished within a carton inside the boiler cabinet and can be installed at the installer preferred location.
B. Pressure Relief Valve
The boiler is furnished with a factory installed relief valve in the top of the boiler. Provide 3/4–in. piping from the supplied relief valve to a local
floor drain, but leave an air gap between piping and drain. No shutoff of any description shall be placed between safety relief valve and the boiler,
or on the discharge pipes between such safety valve and the atmosphere. Installation of the safety relief valve shall conform to ANSI/ASME Boiler
and Pressure Vessel Code, Section IV. The manufacturer is not responsible for any water damage. (See Fig. 6.)
C. Expansion Tank and Make-Up Water
Determine required system fill pressure, system design temperature, and system water content. Boiler contains 2.6 gallons (U.S.). Size expansion
tank accordingly. Consult expansion tank manufacturer for proper sizing information. Connect properly sized expansion tank (not furnished) as
shown in Fig. 7 for diaphragm type expansion tank and Fig. 8 for conventional closed type expansion tanks. For diaphragm type expansion tanks,
adjust the tank air pressure to match the system fill pressure. Install air vent (furnished) as shown for diaphragm type expansion tank system only.
Install make-up water connections as shown and per local codes. If a pressure reducing valve is used, adjust to match the system fill pressure. In
connecting the cold make-up water supply to the boiler, make sure that clean water supply is available. When the water supply is from a well or
pump, a sand strainer should be installed at the pump.
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