The High Static option supply fan motor is equipped with
a
Condenser Fan Motor Protection
The condenser fan motor is internally protected against overtemperature.
Relief Device
A soft solder joint at the suction service access port provides pressure relief under abnormal temperature and pressure conditions (i.e., fire in building). Protect this joint during brazing operations near this joint.
Control Circuit, 24-V
The control circuit is protected against overcurrent conditions by a circuit breaker mounted on control transformer TRAN. Reset is manual.
DISCONNECT | EMT OR RIGID CONDUIT | SINGLE | CENTER | MANUAL RESET |
MOUNTING | POINT BOX | POST | LIMIT SWITCH | |
LOCATION |
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MAIN | BRACKET AND | BOX | HEATER | HEATER | HEATER |
CONTROL CONDUIT | MOUNTING | MODULE | MODULE | MOUNTING | |
BOX | DRIP BOOT | SCREW | (LOCATION 1) (LOCATION 2) BRACKET | ||
CONTROL WIRE TERMINAL BLOCK
C08134
Fig. 28 - Typical Component Location
50TC
ELECTRIC HEATERS
50TC units may be equipped with
Heater modules are installed in the compartment below the indoor (supply) fan outlet. Access is through the indoor access panel. Heater modules slide into the compartment on tracks along the bottom of the heater opening. See Figs 27 - 29.
DISCONNECT MOUNTING
LOCATION
UNIT | OUTDOOR | INDOOR |
ACCESS | ||
PANEL | ACCESS PANEL | PANEL |
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Fig. 27 - Typical Access Panel Location (3-6 Ton)
TRACK
FLANGE
C08135
Fig. 29 - Typical Module Installation
Not all available heater modules may be used in every unit. Use only those heater modules that are UL listed for use in a specific size unit. Refer to the label on the unit cabinet re approved heaters.
Unit heaters are marked with Heater Model Numbers. But heaters are ordered as and shipped in cartons marked with a corresponding heater Sales Package part number. See Table 4 for correlation between heater Model Number and Sales Package part number.
NOTE: The value in position 9 of the part number differs between the sales package part number (value is 1) and a bare heater model number (value is 0).
Table 4 – Heater Model Number
Bare Heater Model | C | R | H | E | A | T | E | R | 0 | 0 | 1 | A | 0 | 0 | |
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Heater Sales Package |
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PNO |
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Bare Heater | C | R | H | E | A | T | E | R | 1 | 0 | 1 | A | 0 | 0 | |
Carton and packing |
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materials |
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Installation sheet |
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21
