Bryant 302B Installation, Start-Up And Service Instructions Manual page 17

LEGEND
HPS – High Pressure Switch
LCS – Loss of Charge Switch
Accurater
Arrow indicates direction of flow
LEGEND
HPS – High Pressure Switch
LCS – Loss of Charge Switch
Accurater
Arrow indicates direction of flow
NOTE: Be sure that all supply-and return-air grilles are open, free
from obstructions, and adjusted properly.
Airflow can be changed by changing the lead connection of the
blower motor.
Unit 602B three-speed motors (except sizes 030 and 048) are
factory wired for low speed operation. Units 602B 030 and 048 are
factory wired for medium speed.
For 208/230-v Motors:— The motor leads are color-coded as
follows:
3-SPEED
Black = high speed
Blue = medium speed
Red = low speed
To change the speed of the blower motor (BM), remove the fan
motor speed leg lead from the blower relay (BR). This wire is
attached to IGC terminal BM for single-phase and 3-phase units.
To change the speed, remove and replace with lead for desired
blower motor speed. Insulate the removed lead to avoid contact
with chassis parts.
OUTDOOR COIL
HPS
® Metering Device
Fig. 22—Typical Heat Pump Operation, Heating Mode
OUTDOOR COIL
HPS
® Metering Device
Fig. 23—Typical Heat Pump Operation, Cooling Mode
—17—
Bypass
Position
LCS
Metering
Position
Metering
Position
LCS
Bypass
Position
For 460-v GE Motors—The motor leads are color coded as
follows:
3-SPEED
Black = high
Violet = jumper
Orange = medium
Red = low
To change the speed of the blower motor (BM), remove fan motor
speed lead from the blower relay (BR) and replace with the lead
for the desired blower motor speed. The motor speed lead is
attached to terminal BM. For low and medium speeds, black must
be connected to the jumper wire. Insulate removed lead end to
avoid contact with chassis parts. To select high speed on 460-v GE
motors, separate the black female quick connect (QC) from the
jumper lead male quick connect (QC) and connect the black lead
to the BR. Insulate the jumper to avoid contact with any chassis
parts.
INDOOR COIL
C00095
INDOOR COIL
C00096