506887-01
Page 14 of 78
Issue 1213
Removal of the Furnace from Common Vent
In the event that an existing furnace is removed from a
venting system commonly run with separate gas appliances,
the venting system is likely to be too large to properly vent
the remaining attached appliances.
Conduct the following test while each appliance is operating
and the other appliances (which are not operating) remain
connected to the common venting system. If the venting
system has been installed improperly, you
must
correct the
system as indicated in the general venting requirements
section.
1.
Seal any unused openings in the common venting system.
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:
Venting Practices
1.
In areas where piping penetrates joist or interior walls,
hole must be large enough to allow clearance on all sides
of pipe through center of hole using a hanger.
2.
When furnace is installed in a residence where unit is
shut down for an extended period of time, such as a
vacation home, make provisions for draining condensate
collection from trap and lines.
The exhaust vent pipe operates under positive pressure
and must be completely sealed to prevent leakage of
combustion products into the living space.
CAUTION
Do not discharge exhaust into an existing stack or stack
that also serves another gas appliance. If vertical
discharge through an existing unused stack is required,
insert PVC pipe inside the stack until the end is even
with the top or outlet end of the metal stack.
CAUTION
Piping Suspension Guidelines
NOTE:
Isolate piping at the point where it exits the outside wall or
roof in order to prevent transmission of vibration to the structure.
Wall Thickness Guidelines
Figure 14
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.
WARNING
FIGURE 15
Summary of Contents for A97USMV
Page 3: ...506887 01 Page 3 of 78 Issue 1213 A97USMV Exploded View Figure 1 ...
Page 16: ...506887 01 Page 16 of 78 Issue 1213 Figure 17 ...
Page 28: ...506887 01 Page 28 of 78 Issue 1213 Trap Drain Assembly using 1 2 PVC or 3 4 PVC Figure 38 ...
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Page 36: ...506887 01 Page 36 of 78 Issue 1213 Figure 46 ...
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Page 40: ...506887 01 Page 40 of 78 Issue 1213 Typical A97USMV Wiring Diagram Figure 47 ...
Page 41: ...506887 01 Page 41 of 78 Issue 1213 Integrated Control Figure 48 ...
Page 42: ...506887 01 Page 42 of 78 Issue 1213 Low Voltage Field Wiring Table 14 2 Stage Single Stage ...
Page 46: ...506887 01 Page 46 of 78 Issue 1213 BLOWER DATA ...
Page 47: ...506887 01 Page 47 of 78 Issue 1213 BLOWER DATA ...
Page 48: ...506887 01 Page 48 of 78 Issue 1213 BLOWER DATA ...
Page 49: ...506887 01 Page 49 of 78 Issue 1213 BLOWER DATA ...
Page 50: ...506887 01 Page 50 of 78 Issue 1213 BLOWER DATA ...
Page 51: ...506887 01 Page 51 of 78 Issue 1213 BLOWER DATA ...
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Page 55: ...506887 01 Page 55 of 78 Issue 1213 TABLE 22 ...
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Page 60: ...506887 01 Page 60 of 78 Issue 1213 Figure 50 ...
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