Bryant 602B Installation, Start-Up, And Operating Instructions Manual Download Page 3

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pre-programmed table of airflows.
The unit must be configured to operate properly with system
components with which it is installed. To successfully configure a
basic system (see information printed on circuit board label located
next to select pins), move the 6 select wires to the pins which
match the components used (See Fig. 8).

a. GAS HEAT/CFM—SELECT GAS HEAT INPUT SIZE

Factory selected gas heat size should correspond to unit label.

b. AC/HP SIZE—SELECT SYSTEM SIZE INSTALLED

Factory selected air conditioner size should correspond to
capacity of unit installed. Installer should verify air conditioner
size to ensure that airflow delivered falls within proper range
for the size unit installed. This applies to all operational modes.

c. SYSTEM TYPE—SELECT SYSTEM TYPE INSTALLED

Factory selected on 583B for AC-Air conditioner.
For Gas Heat/Electric Cool Unit–AC must be selected.

d. AC/HP CFM ADJUST—SELECT NOMINAL, LOW, OR

HIGH AIRFLOW

The AC/HP CFM Adjust select is factory set to the High-HI
(NOM for 060) tap. The CFM Adjust selections NOM/LO will
regulate airflow supplied for all operational modes, except
non-heat pump heating modes. HI provides 15 percent airflow
over nominal unit size selected and LO provides 10 percent
airflow below nominal unit size selected. Adjust selection
options are provided to adjust airflow supplied to meet indi-
vidual installation needs for such things as noise, comfort, and
humidity removal (See Fig. 8, D as indicated).

e. ON/OFF DELAY—SELECT DESIRED

TIME DELAY PROFILE

Four motor operation delay profiles are provided to customize
and enhance system operation (See Fig. 8, E as indicated).
Selection options are:
(1.) The standard 90 sec off delay (Factory Setting) at 100

percent airflow in cooling mode. In heating mode, IGC
will control 45 sec on delay with no airflow and 45 sec off
delay.

(2.) A 30 sec cooling delay with no airflow/ 90 sec off delay at

100 percent airflow profile is used when it is desirable to
allow system coils time to cool-down in conjunction with
the airflow in heating mode.

(3.) A no delay option used for servicing unit or when a

thermostat is utilized to perform delay functions in cooling
mode. In heating mode IGC will control 45 sec on delay
with no airflow and 45 sec off delay.

(4.) Not recommended for 583B

f. CONTINUOUS FAN—SELECT DESIRED FAN SPEED

WHEN THERMOSTAT IS SET ON CONTINUOUS FAN

(1.) LO speed—Factory setting, 50 percent cooling mode

airflow.

(2.) MED speed—Move connector to MED, 65 percent cooling

mode airflow.

(3.) HI speed—Move connector to HI, 100 percent cooling

mode airflow (See Fig. 8, F as indicated).

g. LOW-VOLTAGE CIRCUIT FUSING AND REFERENCE

The low-voltage circuit is fused by a board-mounted 5–amp
automotive fuse placed in series with the transformer SEC2 and
the R circuit. The C circuit of the transformer is referenced to
chassis ground through a printed circuit run at SEC1 connected
to metal standoff marked with ground symbol.

h. BASIC UNIT CONFIGURATION

The following basic configuration of the indoor motor will
provide ARI rated performance of the 583B. This BASIC
CONFIGURATION should be used when the rated ARI perfor-
mance is required, or if system enhancements such as super
dehumidify are not needed.
(1.) HEAT-Factory selected to match heat input size.

(2.) AC/HP Size-Factory selected to match system size, please

verify.

Fig. 4—702B High- and Control-Voltage

Connections

C01027

POWER
SUPPLY

FIELD-SUPPLIED
FUSED DISCONNECT

HIGH VOLTAGE
POWER LEADS
(SEE UNIT WIRING
LABEL)

GND

CONTROL BOX

SPLICE BOX

LOW-VOLTAGE
POWER LEADS
(SEE UNIT
WIRING LABEL)