Lennox B050A3B, Инструкция по установке/обслуживанию и руководство для пользователя

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506307-01 Page 11 of 36 Issue 1207
Pre-Installation Vent System Inspection :
Before this furnace is installed, it is highly recommended
that any existing vent system be completely inspected.
For a chimney or “B” vent, this should include the
following:
1. Inspection for any deterioration in the chimney or “B” vent.
If deterioration is discovered, the chimney must be
repaired or the “B” vent must be replaced.
2. Inspection to ascertain that the vent system is clear and
free of obstructions. Any blockage must be cleared before
installing this furnace.
3. Cleaning the chimney or “B” vent if previously used for
venting a solid fuel burning appliance or fireplace.
4. Confirming that all unused chimney or “B” vent connections
are properly sealed.
5. Verification that the chimney is properly lined and sized
per the applicable codes.
Masonry Chimney:
This furnace can be common vented into an existing
tile lined masonry chimney provided:
1. The chimney is currently serving at least one drafthood
equipped appliance.
2. The vent connectors and chimney are sized in accordance
with the applicable sections of the (U.S.) National Fuel
Gas Code ANSI Z223.1/NFPA54, and/or CSA B149.1
Natural Gas and Propane Installation Codes.
This furnace must NOT be vented ALONE into an
existing masonry chimney (either title lined or unlined) unless
the chimney is also lined with either a type “B” vent system
or a listed single wall, metal lining system. Both of these
systems must be sized in accordance with the applicable
sections of the (U.S.) National Fuel Gas Code ANSI Z223.1/
NFPA 54, and/or CSA B149.1 Natural Gas and Propane
Installation Codes.
Before venting this furnace into a chimney, check the
chimney for deterioration and repair if necessary. This
furnace must not be vented into a chimney serving a separate
appliance designed to burn solid fuel. Type II “B” vent
connectors must be used on all installations and it must be
sized per the applicable sections of the (U.S.) National Fuel
Gas Code ANSI Z223.1/NFPA 54, and/or CSA B149.1
Natural Gas and Propane Installation Codes.
Type “B” Vent :
The furnace is also approved for use with a “B” vent
that terminates through the roof. Refer to the applicable
sections of the (U.S.) National Fuel Gas Code ANSI Z223.1/
NFPA 54, and/or CSA B149.1 Natural Gas and Propane
Installation Codes for proper sizing and set-up of this furnace
with “B” vent for a dedicated vent system or a common
vented system.
Horizontal Venting:
This furnace is design certified by CSA International for
horizontal venting through an outside wall by use of one of
the following auxiliary draft inducer kits:
See Figure 5 on page 12 for information on where the
sidewall vent terminal can and cannot terminate.
For Massachusetts Installations: The installation must
comply with Massachusetts 248 CMR 5.08 Modifications to
sections of NFPA-54, Chapter 10. (See pages 26 and 27)
General Venting Requirements:
This furnace may be common vented only with other
Category I appliances. Common venting is allowed as
permitted by national and/or local codes. Refer to the
applicable sections of the (U.S.) National Fuel Gas Code
ANSI Z223.1/NFPA 54, and/or CSA B149.1 Natural Gas and
Propane Installation Codes for proper sizing and set up.
The vent must be terminated with a listed vent cap or
roof assembly. This venting must be installed in accordance
with the vent manufacturer’s instructions and be in
accordance with all local codes and/or national codes.
The following requirements are provided for a proper
venting system:
1. Be sure that the chimney flue is clear of any dirt or debris.
2. Be sure that the chimney is not servicing an open fireplace.
Table 3
AUXILIARY DRAFT INDUCERS