ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS. Bryant 345MAV, Series F

BLOWER SHELF

CONDENSATE

TRAP (INSIDE)

FURNACE

DOOR

CONDENSATE

TRAP

FURNACE

SIDE

FURNACE

DOOR FURNACE

SIDE

ALTERNATE DRAIN

TUBE LOCATION

CONDENSATE TRAP

DRAIN TUBE LOCATION

UPFLOW APPLICATIONS

4

78

FIELD

DRAIN

CONN

26

1 4

SIDE VIEW

1 1 2

FRONT VIEW

DOWNFLOW AND ALTERNATE

EXTERNAL UPFLOW APPLICATIONS

4

5

3 4

5

3 4

4

26

1 4

FIELD

DRAIN

CONN

END VIEW

3 4

FRONT VIEW

HORIZONTAL

APPLICATIONS

3 4

SLOT FOR SCREW

HORIZONTAL

APPLICATION

(OPTIONAL)

1

1 2

1

3 4

7 1 8

1 ⁄

4

OD

COLLECTOR BOX TO

TRAP RELIEF PORT

1 ⁄

2

OD

INDUCER HOUSING

DRAIN CONNECTION

5 ⁄

8

OD

COLLECTOR BOX

DRAIN CONNECTION

SCREW HOLE FOR

UPFLOW OR DOWN-

FLOW APPLICATIONS

(OPTIONAL)

1 ⁄

2

-IN. PVC OR CPVC

WIRE TIE

GUIDES

(WHEN USED)

7 8

2

1 4

FRONT VIEW SIDE VIEW

A93026

CAUTION: 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.

Fig. 5—Condensate Trap

ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS 5. Use this procedure for installed and uninstalled (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 5 before bringing the control or yourself into 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.

INTRODUCTION

The model 345MAV 4-way multipoise, Gas-Fired, Category IV, condensing furnaces are available in model sizes ranging in gas input rates of 40,000 to 120,000 Btuh.

For accessory installation details, refer to applicable installation literature.

APPLICATIONS

2. Firmly touch a clean, unpainted, metal surface of the furnace chassis which is close to the control. Tools held in a person’s hand during grounding will be satisfactorily discharged.

3. After touching the chassis, you may proceed to service the control or connecting wires as long as you do nothing that recharges your body with static electricity (for example; DO

NOT move or shuffle your feet, DO NOT touch ungrounded objects, etc.).

4. If you touch ungrounded objects (recharge your body with static electricity), firmly touch metal surface again before touching control or wires.

I.

CAUTION: entire furnace and condensate trap when a condensing furnace is used in an attic application or over a finished ceiling. Failure to follow this caution will result in minor property damage.

GENERAL

Local codes may require a drain pan under

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.

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