Venting; Electrostatic Discharge (Esd) Precautions; Introduction; Applications - Bryant 352AAV Installation, Start-Up, And Operating Instructions Manual

Step 8 - - Venting
S US: NFPA 54/ANSI Z223.1- -2006 Chapters 12 and 13.
S CANADA: CAN/CSA- -B149.1- -05 Part 8 and Appendix C
Fig. 4 - - Return- -Air Temperature
ELECTROSTATIC DISCHARGE (ESD)
PRECAUTIONS PROCEDURE
CAUTION
!
UNIT DAMAGE HAZARD
Failure to follow this caution may result in damage to unit
components.
Electrostatic discharge can affect electronic components.
Take precautions during furnace installation and servicing to
protect the furnace electronic control. Precautions will
prevent electrostatic discharges from personnel and hand
tools which are held during the procedure. These precautions
will help to avoid exposing the control to electrostatic
discharge by putting the furnace, the control, and the person
at the same electrostatic potential.
1. Disconnect all power to the furnace. Multiple disconnects
may be required. DO NOT TOUCH THE CONTROL OR
ANY WIRE CONNECTED TO THE CONTROL PRIOR
TO DISCHARGING YOUR BODY'S ELECTROSTATIC
CHARGE TO GROUND.
2. Firmly touch the clean, unpainted, metal surface of the
furnace chassis which is close to the control. Tools held in
hand during grounding will be discharged.
3. After touching the chassis, you may proceed to service the
control or connecting wires as long as you do nothing to
recharge your body (moving or shuffling feet, touching
ungrounded objects, etc.).
4. If you touch ungrounded objects, firmly touch a clean,
unpainted metal surface of the furnace again before
touching control or wires.
5. Use this procedure
(ungrounded) furnaces.
6. Before removing a new control from its container,
discharge your body's electrostatic charge to ground to
protect the control from damage. If the control is to be
installed in a furnace, follow items 1 through 4 before
bringing the control or yourself in contact with the
furnace. Put all used and new controls into containers
before touching ungrounded objects.
7. An ESD service kit (available from commercial sources)
may also be used to prevent ESD damage.
(27º C)
0
(16º C)
60
A05004
for installed and uninstalled

INTRODUCTION

The model 352AAV 4-way multipoise, Gas-Fired, Category IV,
condensing furnace is available in model sizes ranging from input
capacity of 60,000 to 120,000 Btuh as a direct vent (2-pipe)
application as well as a non-direct vent (1-pipe) application.

APPLICATIONS

CAUTION
!
MINOR PROPERTY DAMAGE
Failure to follow this caution may result in minor property
damage.
Local codes may require a drain pan under entire furnace and
condensate trap when a condensing furnace is used in an attic
application or over a finished ceiling.
Step 1 - - General
Some assembly and modifications are required for furnaces
installed in any of the 4 applications shown in Fig. 1. All drain
and pressure tubes are connected as shown in Fig. 6. See
appropriate application instructions for these procedures.
Step 2 - - Upflow Applications
In an upflow application, the blower is located below the burner
section, and conditioned air is discharged upwards.
CONDENSATE TRAP LOCATION
(FACTORY-SHIPPED ORIENTATION)
The condensate trap is factory installed in the blower shelf and
factory connected for UPFLOW applications. A factory-supplied
tube is used to extend the condensate trap drain connection to the
desired furnace side for field drain attachment. See Condensate
Trap Tubing (Factory-Shipped Orientation) section for drain tube
extension details. (See Fig. 5.)
CONDENSATE TRAP TUBING
(FACTORY-SHIPPED ORIENTATION)
NOTE: See Fig.6 or tube routing label on main furnace door to
confirm location of these tubes.
1. Collector Box Drain, Inducer Housing Drain, Relief Port,
and Pressure Switch Tubes
These tubes should be factory attached to condensate trap
and pressure switch ready for use in upflow applications.
These tubes can be identified by their connection location
and also by a color label on each tube. These tubes are
identified as follows: collector box drain tube (blue label),
inducer housing drain tube (violet label or molded), relief
port tube (green label), and pressure switch tube (pink
label).
2. Condensate Trap Drain Tube
The condensate trap drain connection must be extended
for field attachment by doing the following:
f. Determine location of field drain connection. (See Fig.
2 or 6)
NOTE: If internal filter or side Filter/Media Cabinet is used,
drain tube should be located to opposite side of casing from
return duct attachment to assist in filter removal.
g. Remove and discard casing drain hole plug button
from desired side.
h. Install drain tube coupling grommet (factory-supplied
in loose parts bag) in selected casing hole.
i. Slide drain tube coupling (factory-supplied in loose
parts bag) through grommet ensuring long end of
coupling faces blower.
8