beautypg.com

Warning, Continuous fan (cf) setup switches – Bryant Bruant 4 Way Gas 355AAV User Manual

Page 28

background image

28

Table 6 – Electrical Data

UNIT SIZE

VOLTS---

HERTZ---

PHASE

OPERATING VOLTAGE

RANGE

MAXIMUM

UNIT

AMPS

MINIMUM

WIRE SIZE

MAXIMUM

WIRE LENGTH

FT. (M)}

MAXIMUM FUSE

OR CKT BKR

AMPS**

Maximum*

Minimum*

040---14 / 042040

115---60---1

127

104

8.90

14

31 (9)

15

060---14 / 042060

115---60---1

127

104

8.90

14

31 (9)

15

080---14 / 042080

115---60---1

127

104

8.90

14

30 (9)

15

080---20 / 060080

115---60---1

127

104

14.00

12

31 (9)

20

100---20 / 060100

115---60---1

127

104

14.00

12

31 (9)

20

120---20 / 060120

115---60---1

127

104

14.00

12

31 (9)

20

* Permissible limits of voltage range at which unit will operate satisfactorily.
{

Unit ampacity = 125 percent of largest operating component’s full load amps plus 100 percent of all other potential operating components’ (EAC, humidifier,

etc.) full load amps.
}

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.

by power supply is sufficient to handle load imposed by this
equipment. Refer to rating plate or Table 6 for equipment electrical

specifications.
Make all electrical connections in accordance with National

Electrical Code (NEC) ANSI/NFPA 70--2008 and any local codes

or ordinances that might apply. For Canadian installations, all
electrical connections must be made in accordance with Canadian

Electrical Code CSA C22.1 or authorities having jurisdiction.
Field--supplied wiring shall conform with the limitations of 63_F

(33_C) rise.
The furnace must be electrically grounded in accordance with local
codes; or in the absence of local codes, with the National Electric

Code ANSI/NFPA 70 and/or the Canadian Electric Code, CSA
C22.1, Part I, if an external electrical source is utilized.
Use a separate branch electrical circuit containing a properly sized

fuse or circuit breaker for this furnace. See Table 6 for wire size
and fuse specifications. A disconnecting means must be located

within sight from and readily accessible to furnace.
NOTE: Proper polarity must be maintained for 115--v wiring. If
polarity is incorrect, furnace control status code indicator light will
flash rapidly and furnace will NOT operate.

FIRE HAZARD
Failure to follow this warning could result in intermittent

operation or performance satisfaction.
Do not connect aluminum wire between disconnect switch and

furnace. Use only copper wire. (See Fig. 33.)

!

WARNING

ELECTRICAL AND FIRE HAZARD
Failure to follow this warning could result in electrical shock,

fire or death.
The cabinet MUST have an uninterrupted or unbroken ground

according to NEC ANSI/NFPA 70--2008 and Canadian

Electrical Code CSA C22.1 or local codes to minimize

personal injury if an electrical fault should occur. This may

consist of electrical wire or conduit approved for electrical

ground when installed in accordance with existing electrical

codes. Do not use gas piping as an electrical ground.

!

WARNING

COPPER

WIRE ONLY

ELECTRIC

DISCONNECT

SWITCH

ALUMINUM

WIRE

A93033

Fig. 33 -- Disconnect Switch and Furnace

Factory Installed J--Box Location

Install power entry hole filler plugs (factory--supplied in loose parts
bag) in unused power entry holes. (See Fig. 34.)

J--Box Relocation

1. Remove 2 screws holding auxiliary J--box. (See Fig. 35.)
2. Rotate J--box 180_ and attach box to left side, using holes

provided.

3. Install power entry hole filler plugs (factory--supplied loose

parts bag) in unused power entry holes. (See Fig. 35.)

FIRE OR ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in intermittent unit

operation or performance satisfaction.
If manual disconnect switch is to be mounted on furnace,

select a location where a drill or fastener will not contact

electrical or gas components.

!

WARNING

CONTINUOUS FAN (CF) SETUP SWITCHES

The CF setup switches are used to select desired airflow when
thermostat is in continuous fan mode or to select low--cooling

airflow for two--speed cooling units. This setup feature allows

continuous fan airflow or low--cooling airflow to be adjusted. To
set desired continuous fan airflow or low--cooling airflow:

1. Remove main furnace door and blower access panel.
2. Locate CF setup switches on furnace control. (See Fig. 37.)
3. Determine desired continuous fan airflow or low--cooling

airflow.

4. Use Fig. 47 or wiring schematic to determine proper setup

position of CF switches. (See Fig. 36.)

5. Replace main furnace door and blower access panel.

355A