Removal Of Existing Furnaces From Common Vent Systems; Combustion Air And Vent Pipe Systems - Carrier Series 100 Installation, Start-Up, And Operating Instructions Manual

POWER ENTRY HOLE
FILLER PLUG (FACTORY-
SUPPLIED LOOSE PARTS BAG)
provided for EAC connection. (See Fig. 36.) These terminals
are energized with 115-v (1.0-amp maximum) during blower
motor operation.
UNIT MAY NOT OPERATE
Failure to follow this caution may result in intermittent
operation or performance satisfaction.
DO NOT connect furnace control HUM terminal to HUM
(humidifier) terminal on Thermidistat™, Zone Controller or
similar device. See Thermidistat™, Zone Controller, thermo-
stat, or controller manufacturer's instructions for proper
connection.
2. Humidifier (HUM)
A quick-connect terminal (HUM) and screw terminal (C
24V) are provided for 24-v humidifier connection. (See Fig.
36.) HUM terminal is energized with 24-v (0.5-amp maxi-
mum) when gas valve is energized.
NOTE: A field-supplied, 115-v controlled relay connected to
EAC terminals may be added if humidifier operation is desired
during all blower operation.
Table 7—Approved Combustion-Air and Vent Pipe, Fitting and Cement Materials
ASTM SPECIFICATION
MATERIAL PIPE FITTINGS SOLVENT CEMENT AND PRIMERS
(MARKED ON MATERIAL)
D1527
D1785
D2235
D2241
D2466
D2468
D2564
D2661
D2665
F438
F441
F442
F493 For CPVC
F628
F656
F891
ALTERNATE
FIELD
LOCATION
UNUSED 7/8-IN. DIAMETER
POWER ENTRY HOLES
→ Fig. 34—Relocating J-Box
ABS Pipe —
PVC Pipe —
For ABS — —
PVC Pipe —
PVC — Fittings
ABS — Fittings
For PVC — —
ABS Pipe Fittings
PVC Pipe Fittings
CPVC — Fittings
CPVC Pipe —
CPVC Pipe —
— —
ABS Pipe —
For PVC — —
PVC Pipe —
FACTORY
INSTALLED
LOCATION
POWER ENTRY HOLE
FILLER PLUG (FACTORY-
SUPPLIED LOOSE PARTS BAG)
UNUSED 7/8-IN. DIAMETER
POWER ENTRY HOLES
Step 9—Removal of Existing Furnaces from Common
Vent Systems
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.
Step 10—Combustion Air and Vent Pipe Systems
GENERAL
Vent system or vent connectors may need to be resized. For any
other appliances when resizing vent systems or vent connectors,
system or connector must be sized to approach minimum size as
determined using appropriate table found in the NFGC or NSC-
NGPIC.
OM
→
The 58MXB can be vented as either a direct vent (all sizes) or as
a non-direct vent (except for 140 size) application. A direct vent
system shall be installed in accordance with the direct vent
(2-pipe) procedures in the following Combustion Air and Vent
Pipe Systems section. For non-direct vent (1-pipe) applications,
refer to the non-direct vent (1-pipe) procedures in the same section.
—
—
Solvent
Cement
—
—
—
Solvent
Cement
—
—
—
—
—
Solvent
Cement
—
Primer
—
27
DESCRIPTION
Schedule-40
Schedule-40
For ABS
SDR-21 & SDR-26
Schedule-40
Schedule-40
For PVC
DWV at Schedule-40 IPS sizes
DWV
Schedule-40
Schedule-40
SDR
For CPVC
Cellular Core DWV at Schedule-40 IPS sizes
For PVC
Cellular Core Schedule-40 & DWV
A05058