24-V Wiring; Accessories; Venting; General Venting Requirements - Bryant 349HAV Series Installation, Start-Up, And Operating Instructions Manual

VOLTS—
UNIT SIZE HERTZ—
PHASE
036050 115—60—1
036075 115—60—1
048075 115—60—1
048100 115—60—1
060100 115—60—1
060125 115—60—1
* Permissible limits of the voltage range at which the unit will operate satisfactorily.
† Length shown is as measured 1 way along wire path between unit and service panel for maximum 2 percent voltage drop.
‡ Time-delay type is recommended.
II. 24-V WIRING
Make field 24-v thermostat connections at the 24-v terminal block.
Connect Y terminal as shown in Fig. 10 for proper cooling
operation. The 24-v control board is marked for easy connection of
field wiring. (See Fig. 12.)
3 DI
N
S
1 2 HUM EAC N
S
T
W
I
N
SPEED
C
UP
Fig. 12—Control Board
NOTE: Use AWG No. 18 color coded copper thermostat wire for
lengths up to 100 ft. For wire lengths over 100 ft, use AWG No.
16 wire.
III. ACCESSORIES
Install accessories per manufacturer's instructions. Other than
wiring for thermostat, a minimum of type T wire (63°F/35°C rise)
must be used.
1. Electronic Air Cleaner (EAC)
Two 1/4-in. quick-connect terminals marked EAC and N
are provided for EAC connection. (See Fig. 12.) These
terminals are energized with 115v (0.5-amp maximum)
during blower motor operation.
2. Humidifier (HUM)
Two 1/4-in. quick-connect terminals marked HUM and N
are provided for 115-v humidifier connection. (See Fig. 12.)
These terminals are energized with 115v (0.5-amp maxi-
mum) during any call for heat.
Cycle test furnace and accessories twice to ensure proper opera-
tion.
→ TABLE 4—ELECTRICAL DATA
OPERATING
VOLTAGE RANGE
Max*
127
127
127
127
127
127
1 2 3 4 C X X
NEUTRAL
N CIR BLWR
C G Y W R
Y
A96103
MAX MIN
UNIT WIRE
AMPS SIZE
Min*
104 9.3
104 9.9
104 11.3
104 9.9
104 13.1
104 11.3
I. GENERAL VENTING REQUIREMENTS
→
Venting for furnace should be to the outside and in accordance
with local codes or requirements of local utility. In the absence of
local codes, venting should conform to the NFGC Part 7 or
CAN/CGA-B149 Installation Codes Section 7, the vent manufac-
turer's Installation Instructions, and the A.G.A./GAMA Venting
Tables supplied with furnace.
These furnaces are equipped with induced-combustion blowers
and are classified as Category I forced air furnaces in accordance
with ANSI/A.G.A. Z21.47 and C.G.A. 2.3 Central Furnace Stan-
dards. Category I furnaces use non-positive, non-condensing vent
systems, and may be connected to lined masonry chimneys which
have been sized and installed per the enclosed procedures. Cat-
egory I furnaces can not be vented into a vent system with any
Category II, III, or IV appliance. It must be vented vertically or
nearly vertically, unless installed with a listed mechanical venter in
accordance with horizontal venting instructions in the Horizontal
Venting section below. A Category I furnace must not be con-
nected to any portion of a mechanical draft system operating under
positive pressure.
Venting of these furnaces into a lined masonry chimney could
form flue gas condensate due to cold surfaces and oversizing. If
condensate is present in the masonry chimney, a drain must be
provided to prevent condensate flow into the vent connector and
furnace. (Refer to the NFGC, Section 7.9 for additional informa-
tion on condensate drains.) Field experience on induced-
combustion furnaces has shown that venting through a properly
sized Type B-1 vent significantly reduces vent condensation.
Condensate is acidic and could corrode vent materials. Therefore,
the manufacturer suggests (but does not require) that these
furnaces be connected to vent systems constructed of Type B-1
vent material.
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 NFGC Venting Tables supplied
with furnace for proper sizing and setup.
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 Installation Instructions and be in accordance
with all local and/or national codes.
The following requirements are provided for a safe venting
system:
1. Be sure chimney flue is clear of any dirt or debris.
2. Be sure chimney is not servicing an open fireplace.
3. Never reduce pipe size below outlet size of furnace without
checking the NFGC Venting Tables supplied with furnace.
4. All pipe should be supported using proper clamps and/or
straps. These supports should be at least every 4 ft.
5. All horizontal runs of pipe should slope upward at least 1/4
in. per ft from furnace to vent terminal.
—11—
MAX WIRE
LENGTH†
(FT)
14 30
14 28
14 25
14 28
12 34
14 25

VENTING

MAX FUSE
OR CIRCUIT
BREAKER‡ AMPS
15
15
15
15
20
15