![Carrier BWCAAG000120 Скачать руководство пользователя страница 26](http://html.mh-extra.com/html/carrier/bwcaag000120/bwcaag000120_installation-and-operating-instructions-manual_2562170026.webp)
26
8
GENERAL VENTING
9
DANGER:
Ensure the exhaust and intake vent piping comply
with these instructions regarding the vent system. Inspect
finished combustion air intake and exhaust piping thoroughly
to ensure all joints are secured well, airtight and comply with all
applicable code requirements, as well as with the instructions
provided in this manual and the vent manufacturer’s installation
manual. Failure to provide a properly installed vent system will
cause severe personal injury or death.
9
WARNING:
Carbon Monoxide is invisible, odorless, and toxic!
Install a carbon monoxide alarm in your home, even if you do
not own a gas appliance. Locate the carbon monoxide alarm
in the living area of your home and away from gas appliances
and doorways to attached garages. Follow the alarm
manufacturer’s instruction included with the alarm.
NOTICE:
pipe supports shall be placed per local code and the vent
manufacturer’s instructions.
9
WARNING:
RISK OF CARBON MONOXIDE POISONING OR
FIRE DUE TO JOINT SEPARATION OR PIPE BREAKAGE.
Ensure all of the venting system is properly supported and
secured per these instructions, venting manufacturer’s
instructions and with the National Fuel Gas Code, ANSIZ223.1/
NFPA 54, CAN/CSA B149.1, and/or applicable provisions of
local building codes. Failure to do so may result in substantial
property damage, severe personal injury or death.
9
WARNING:
This vent system will operate with a positive
pressure in the pipe. Do not connect vent connectors
serving appliances vented by natural draft into any portion of
mechanical draft systems operating under positive pressure.
Follow the venting instructions carefully. Failure to do so may
result in severe personal injury, death, or substantial property
damage.
Install the boiler/venting system in accordance with the vent
manufacturer’s instructions and with the National Fuel Gas Code,
ANSIZ223.1/NFPA 54, CAN/CSA B149.1, and/or applicable
provisions of local building codes.
This boiler is a direct vent appliance according to ANSI Z21.13/
CSA4.9 standard.
Vent installations shall be in accordance with Part 7, Venting of
Equipment, of the National Fuel Gas Code, ANSI Z223.1/NFPA 54
and/or CAN/CSA B149.1, Natural Gas and Propane Installation
Code, or applicable provisions of the local building codes.
The safe operation of a system is based on the use of parts supplied
by the vent manufacturer and the performance of the system may
be affected if the combination of these parts is not used in actual
building construction.
Acceptance of the system is dependent upon full compliance with
the vent manufacturer’s installation instructions, National Fuel Gas
Code, ANSIZ223.1/NFPA 54, CAN/CSA B149.1, and/or applicable
provisions of local building codes.
8 .1
Combustion Air-inlet Contamination
Be careful not to locate the air-inlet termination in an area
where contaminants can be drawn in and used for combustion.
Combustion air containing dust, debris or air-borne contaminants
will drastically increase the required maintenance and may cause
a corrosive reaction in the Heat Exchanger which could result in
premature failure, fire, serious injury, or death.
See table below for
a list of areas to avoid when terminating air-inlet piping:
Products to Avoid
Contaminated Sources
to Avoid
Antistatic fabric softeners,
bleaches, detergents, cleaners Laundry facilities
Perchloroethylene (PCE),
hydrocarbon based cleaners
Dry cleaning facilities
Chemical fertilizer, herbicides/
pesticides, dust, methane gas
Farms or areas with livestock
and manure
Paint or varnish removers,
cements or glues, sawdust
Wood working or furniture refi-
nishing shops
Water chlorination chemicals
(chloride, fluoride)
Swimming pools, hot tubs
Solvents, cutting oils, fiberglass,
cleaning solvents
Auto body or metal working
shops
Refrigerant charge with CFC or
HCFC
Refrigerant repair shops
Permanent wave solutions
Beauty shops
Fixer, hydrochloric acid
(muriatic acid), bromide, iodine
Photo labs, chemical / plastics
processing plants
Cement powder, crack fill dust,
cellulose, fiber based insulation
Concrete plant or construction
site
9
WARNING:
Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any other gas-fired
appliance. Failure to follow instructions may result in serious
injury or death.
8 .2
Flammable Solvents and Plastic Piping
9
DANGER: Flammable Cements and Primers -
It is the
installers’ responsibility to familiarize themselves with the
hazards associated with explosive solvents and to take all
precautions to reduce these risks. Failure to follow these
instructions can cause explosions, property damage, injury or
death.
9
WARNING:
Only solvents, cements and primers approved for
ANSI/ASTM F493 (for CPVC) and ANSI D2564 (for PVC) shall
be used with their vent system. See approved venting material
table below. Failure to do so may result in severe personal
injury, substantial property damage or death
.
Due to the extremely flammable characteristics of most glues,
cements, solvents and primers used in the process of joining
plastic vent and air-inlet pipes, explosive solvent vapors must be
evacuated from the vent and air-inlet prior to start-up. Avoid using
excess cement or primer that may lead to pooling inside the pipe
assembly. Freshly assembled piping should be allowed to cure for
a minimum of 8 hours before applying power to the gas fired boiler.
Refer to Mandatory Pre-commissioning Procedure for Plastic
Venting in this section.
8 .3
Mandatory Pre-commissioning Procedure
for PVC (Air-inlet only) and CPVC Plastic
Venting
9
WARNING:
Read and install the vent in accordance with the
vent manufacturer’s instructions. Failure to do so may result in
severe personal injury, substantial property damage or death.
9
CAUTION:
Do not apply power to the boiler prior to Step 4 in
the Mandatory Pre-commissioning.
9
CAUTION:
Adhesives and sealents used in the assembly are
to be used within their marked time limitations.
Procedure for PVC (air-inlet only) and CPVC Plastic Venting.
1
With the power turned off to the boiler, completely install the
vent and air-intake system, securely cementing joints together.
If possible, allow primers/cements to cure for 8 hours before
firing the burner. If curing time is less than 8 hours, proceed
with Steps 2 through 6.
2 Keep the boiler gas supply shut-off valve in the off position.
3
Remove the wiring from the spark generator.
9
CAUTION:
Spark Ignition Circuit
- Maintain a safe distance
(2 in. minimum) from the spark ignition circuit to avoid injury
from electrical shock.
4 Turn power on to the boiler and apply a heat demand.
5 Allow for 5 complete trials for ignition, consisting of pre and
post purge of the combustion blower, until an ignition lockout
occurs. Repeat the process one more time (i.e. 10 complete
ignition sequences in total).
6 Turn power off and reconnect the wiring to the spark generator.
8 .4
General Venting Rules and Guidelines
- Prevailing Winds: Ensure the vent is located where it will not be
exposed to normal prevailing winds.
- Combustion Air-inlet Contamination: Air for combustion must be
drawn from an area free of dust and contaminants.
- Vertical between air-inlet and exhaust vent: The exhaust must
be a minimum of 12 in. (305mm) above the air-inlet, and the
air-inlet must always be a minimum of 12 in. (305mm) plus
allowance above any surface that will support snow. (Two feet
plus snow allowance is highly recommended). Consult your
weather office for the maximum typical snowfall for your region.