Bryant 564A Installation, Start-Up And Service Instructions Manual page 13

Fig. 17—Cooling Charging Chart—564A036 Units
Fig. 19—Cooling Charging Chart—564A048 Units
B. For 460-v Motors
The motor leads are color coded as follows:
3-SPEED (060 ONLY)
black = high speed
-
orange = medium speed
blue = low speed
To change the speed of the blower motor (BM) from low speed to
high speed, removethe red lead from the indoor-fan relay (IFR).
Insulate the red lead to avoid contact with any chassis parts.
Separate the black lead from the purple lead. Connect the black
lead to the IFR. Insulate the purple lead to avoid contact with any
chassis parts.
OUTDOOR TEMP
° F ° C
115 46
105 41
95 35
85 29
75 24
65 18
55 13
45 7
°
C00017
OUTDOOR TEMP
° F ° C
115 46
105 41
95 35
85 29
75 24
65 18
55 13
45 7
°
C00019
2-SPEED
black = to purple
yellow = line
purple = to black
red = line
—13—
Fig. 18—Cooling Charging Chart—564A042 Units
Fig. 20—Cooling Charging Chart—564A060 Units
V. UNIT CONTROLS
All compressors have the following internal-protection controls.
A. HIGH-PRESSURE RELIEF VALVE
This valve opens when the pressure differential between the low
and high side becomes excessive.
B. COMPRESSOR OVERLOAD
This overload interrupts power to the compressor when either the
current or internal temperature become excessive, and automati-
cally resets when the internal temperature drops to a safe level.
This overload may require up to 60 minutes (or longer) to reset;
therefore, if the internal overload is suspected of being open,
disconnect the electrical power to the unit and check the circuit
OUTDOOR TEMP
° F ° C
115 46
105 41
95 35
85 29
75 24
65 18
55 13
45 7
°
C00018
OUTDOOR TEMP
° F ° C
125 52
115 46
105 41
95 35
85 29
75 24
65 18
55 13
45 7
°
C00020