Specifications

Manual 2100-555
Page 14 of 30
WIRING – MAIN POWER
Refer to the unit rating plate for wire sizing information
and maximum fuse or “HACR” type circuit breaker
size. Each outdoor unit is marked with a “Minimum
Circuit Ampacity”. This means that the field wiring
used must be sized to carry that amount of current.
Depending on the installed KW of electric heat, there
may be two field power circuits required. If this is the
case, the unit serial plate will so indicate. All models
are suitable only for connection with copper wire. Each
unit and/or wiring diagram will be marked “Use Copper
Conductors Only”. These instructions must be adhered
to. Refer to the National Electrical Code (NEC) for
complete current carrying capacity data on the various
insulation grades of wiring material. All wiring must
conform to NEC and all local codes.
The electrical data lists fuse and wire sizes (75°C copper)
for all models including the most commonly used heater
sizes. Also shown are the number of field power circuits
required for the various models with heaters.
The unit rating plate lists a “Maximum Time Delay
Relay Fuse” or “HACR” type circuit breaker that is to
be used with the equipment. The correct size must be
used for proper circuit protection and also to assure that
there will be no nuisance tripping due to the momentary
high starting current of the compressor motor.
The disconnect access door on this unit may be locked
to prevent unauthorized access to the disconnect. To
convert for the locking capability, bend the tab located
in the bottom left-hand corner of the disconnect opening
under the disconnect access panel straight out. This tab
will now line up with the slot in the door. When shut, a
padlock may be placed through the hole in the tab
preventing entry.
See “Start Up” section for important information on
three phase scroll compressor start ups.
See Table 9 for Electrical Specifications.
NOTE: The voltage should be measured at the field power
connection point in the unit and while the unit is operating at
full load (maximum amperage operating condition).
PATEGNAR
V042612–352
V802781–022
WIRING – LOW VOLTAGE WIRING
230/208V, 1 phase and 3 phase equipment contain dual
primary voltage transformers. All equipment leaves the
factory wired on 240V tap. For 208V operation,
reconnect from 240V to 208V tap. The acceptable
operating voltage range for the 240V and 208V taps are:
TABLE 2
OPERATING VOLTAGE RANGE
An 18 gauge copper, color-coded thermostat cable is
recommended. The connection points are shown in this
Manual. See Table above.
Low Voltage Connection
These units use a grounded 24-volt AC low voltage circuit.
The “R” terminal is the hot terminal and the “C”
terminal is grounded.
“G” terminal is the fan input.
“Y” terminal is the compressor input.
“B” terminal is the reversing valve input. The reversing
valve must be energized for heating mode.
“R” terminal is the 24 VAC hot.
“C” terminal is the 24 VAC grounded.
“L” terminal is compressor lockout output. This terminal
is activated on a high or low pressure trip by the
electronic heat pump control. This is a 24 VAC output.
“W2” terminal is second stage heat (if equipped).
“W3” terminal is spare; use as needed.
“DH” terminal is used if outdoor thermostat installed.
“O1” terminal is the ventilation input. This terminal
energizes any factory installed ventilation option.
“E” terminal is the emergency heat input. This terminal
energizes the emergency heat relay.
TABLE 3
THERMOSTAT WIRE SIZE
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553.2
eguag02
eguag81
eguag61
eguag41
eguag21
54
06
001
061
052
LOW VOLTAGE CONNECTIONS FOR DDC CONTROL
Fan Only Energize G
Cooling Mode Energize Y, G
Heat Pump Heating Energize Y, G, B
2nd Stage Heating Energize G, W2, Y, B
w/Heat Pump (if employed)
Ventilation Energize G, O1
Emergency Heat Energize B, W2, E, G
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TABLE 1
DIAGRAM TO USE WITH UNIT AND VENTS