Bryant Single Package Rooftop Electric Heating/Electric Cooling Unit 558D - Manual (Page 9)

Transformer Circuit Breaker (Fig. 14)
The unit transformer contains an automatic-reset overcur-
rent protector for control circuit protection. If this device trips,
it may reset without warning and start the heating or
cooling section of this product. Use caution when servicing: If
overcurrent protector continues to trip, there is a problem in
the low-voltage electrical circuit (i.e., electrical short, ground
or transformer overload). Disconnect power, correct the con-
dition, and check for normal unit operation.
LOW-VOLTAGE
ACCESS PANEL
FIELD CONTROL
WIRING RACEWAY
(HIDDEN)
POWER WIRING
SIDE PANEL
KNOCKOUT
OPENING
END PANEL
(HIDDEN)
EVAPORATOR
FAN ACCESS
PANEL
UNIT DISCONNECT
(NOT SHOWN)
POWER WIRING
ACCESS PANEL
CONTROL BOX
ACCESS PANEL
CONDENSER
COIL LEFT
CORNER
POST RIGHT
CORNER
POST
FILTER
ACCESS PANEL
REFRIGERANT SERVICE
PORT ACCESS PANEL
(NOT SHOWN)
CONTROL BOX
ACCESS PANEL
CONDENSER COIL
TOP COVER
COMPRESSOR
(COMPRESSOR
ACCESS PANEL
NOT SHOWN)
CONTROL BOX
CONDENSER
COIL
Fig. 12 — Typical Component Location
R
Y1
Y2
W1
W2
G
C
X
LOW-VOLTAGE WIRING
CONNECTION RACEWAY
(HIDDEN)
CONDENSER
FAN
Fig. 13 — Low-Voltage Location
Fig. 14 — Transformer Label
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