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I − APPLICATION

XC13 condensing units are available in 1 1/2,  2, 2 -1/2, 3, 
3 -1/2, 4 and 5 ton capacities. All major components (indoor
blower and coil) must be matched according to Lennox rec-
ommendations for the compressor to be covered under war-
ranty. Refer to the Engineering Handbook for approved sys-
tem matchups.

II − UNIT COMPONENTS

Unit components are illustrated in figure 1.

XC13 PARTS ARRANGEMENT

FIGURE 1

DUAL CAPACITOR

CONTACTOR

OUTDOOR FAN

COMPRESSOR

HIGH PRESSURE

SWITCH

FILTER DRIER

CAUTION

To prevent personal injury, or damage to panels, unit
or structure, be sure to observe the following:

While installing or servicing this unit, carefully stow
all removed panels out of the way, so that the panels
will not cause injury to personnel, nor cause damage
to objects or structures nearby, nor will the panels be
subjected to damage (e.g., being bent or scratched).
 

While handling or stowing the panels, consider any
weather conditions, especially windy conditions, that
may cause panels to be blown around and battered.

Remove the louvered panels as follows:
1.Remove 2 screws, allowing the panel to swing open slight-

ly (see figure 2).

Detail

A

Detail C

Detail

B

FIGURE 2

Removing/Installing Louvered Panels

MAINTAIN MINIMUM PANEL ANGLE (AS CLOSE TO PARALLEL WITH THE UNIT
AS POSSIBLE) WHILE INSTALLING PANEL.

PREFERRED ANGLE
FOR INSTALLATION

Detail D

ROTATE IN THIS DIRECTION;
THEN DOWN TO REMOVE PANEL

SCREW
HOLES

ANGLE MAY BE TOO
EXTREME

HOLD DOOR FIRMLY TO THE HINGED 

SIDE TO MAINTAIN 

FULLY−ENGAGED TABS

LIP

IMPORTANT! Do not allow panels to hang on unit by top tab. Tab
is for alignment and not designed to support weight of panel.

Panel shown slightly rotated to allow top tab to exit (or enter) top
slot for removing (or installing) panel.

2.

Hold the panel firmly throughout this procedure.

 Ro-

tate bottom corner of panel away from hinge corner post
until lower 3 tabs clear the slots (see figure 2, Detail B).

3.Move panel down until lip of upper tab clears the top slot

in corner post (see figure 2, Detail A).

Summary of Contents for XC13 018

Page 1: ...ce must be performed by a qualified installer or service agency WARNING Warranty will be voided if covered equipment is re moved from original installation site Warranty will not cover damage or defect resulting from Flood wind lightning or installation and operation in a corrosive atmosphere chlorine fluorine salt recycled waste water urine fertilizers or other dam aging chemicals DANGER Shock Ha...

Page 2: ... Watts 150 140 165 220 215 215 305 Shipping Data lbs kg 1 pkg 158 72 166 75 179 81 211 96 232 105 232 105 285 129 ELECTRICAL DATA Line voltage data 60hz 1 phase 208 230V 208 230V 208 230V 208 230V 208 230V 208 230V 208 230V 2 Maximum overcurrent protection amps 20 30 30 35 40 50 60 3 Minimum circuit ampacity 11 9 17 5 18 7 21 9 23 2 28 3 34 6 Compressor Rated load amps 8 97 13 46 14 1 16 67 17 69 ...

Page 3: ...anels consider any weather conditions especially windy conditions that may cause panels to be blown around and battered Remove the louvered panels as follows 1 Remove 2 screws allowing the panel to swing open slight ly see figure 2 Detail A Detail C Detail B FIGURE 2 Removing Installing Louvered Panels MAINTAIN MINIMUM PANEL ANGLE AS CLOSE TO PARALLEL WITH THE UNIT AS POSSIBLE WHILE INSTALLING PAN...

Page 4: ... K1 The compressor is energized by a single pole contactor lo cated in the control box See figure 3 K1 is energized by the indoor thermostat terminal Y1 24V when thermostat de mand is present 2 Dual Capacitor C12 The compressor and fan in XC13 series units use perma nent split capacitor motors The capacitor is located in side the unit control box see figure 3 A single dual ca pacitor C12 is used f...

Page 5: ...rotate or turn but merely orbits the stationary scroll NOTE During operation the head of a scroll compressor may be hot since it is in constant contact with discharge gas FIGURE 5 SCROLL FORM FIGURE 6 STATIONARY SCROLL ORBITING SCROLL DISCHARGE SUCTION CROSS SECTION OF SCROLLS TIPS SEALED BY DISCHARGE PRESSURE DISCHARGE PRESSURE 1 2 3 4 SUCTION POCKET SUCTION ORBITING SCROLL STATIONARY SCROLL SUCT...

Page 6: ...acteristics The sounds made by a scroll compres sor do not affect system reliability performance or indicate damage C Drier A filter drier designed for all XC13 model units must be installed in the liquid line The factory installed drier is de signed to remove moisture which can lead to compressor failure Any time unit is exposed to open air due to ser vice drier must be replaced All replacement d...

Page 7: ...station ary use a service wrench with a hex head extension to back the stem out counterclockwise as far as it will go NOTE Use a 3 16 hex head extension for 3 8 line sizes or a 5 16 extension for large line sizes 3 Replace the stem cap Tighten finger tight then tighten an additional 1 6 turn To Close Service Valve 1 Remove the stem cap with an adjustable wrench 2 Using the adjustable wrench to kee...

Page 8: ...the R 410A cylinder 3 Open the high pressure side of the manifold to allow the R 410A into the line set and indoor unit Weigh in a trace amount of R 410A A trace amount is a maximum of 2 ounces 57 g or 3 pounds 31 kPa pressure Close the valve on the R 410A cylinder and the valve on the high pressure side of the manifold gauge set Disconnect the R 410A cylinder 4 Connect a cylinder of nitrogen with...

Page 9: ...ve the manifold gauge hose from the cylinder Open the manifold gauge valves to release the nitrogen from the line set and in door unit 8 Reconnect the manifold gauge to the vacuum pump turn the pump on and continue to evacuate the line set and indoor unit until the absolute pressure does not rise above 500 microns 29 9 inches of mercury within a 20 minute period after shutting off the vacuum pump ...

Page 10: ...e filter drier several times to achieve the required dryness level If system dryness is not verified the compressor will fail in the future Checking Charge The outdoor unit should be charged during warm weather However applications arise in which charging must occur in the colder months The method of charging is determined by the unit s refrigerant metering device and the outdoor ambient temperatu...

Page 11: ...7 98 308 2 128 463 5 36 109 2 68 194 1 100 317 2 130 475 6 38 113 6 70 200 6 102 326 4 132 487 8 40 118 0 72 207 2 104 335 7 134 500 2 42 122 6 74 214 0 106 345 3 136 512 9 44 127 3 76 220 9 108 355 0 138 525 8 46 132 2 78 228 0 110 365 0 140 539 0 48 137 1 80 235 3 112 375 1 142 552 3 50 142 2 82 242 7 114 385 4 144 565 9 52 147 4 84 250 3 116 396 0 146 579 8 54 152 8 86 258 0 118 406 7 148 593 8...

Page 12: ... 129 240 120 249 123 243 117 70 21 253 130 269 130 257 127 271 132 260 124 267 126 264 120 75 24 273 134 288 133 277 129 291 135 280 128 286 129 285 123 80 26 295 138 310 136 298 132 312 137 301 131 306 131 306 126 85 29 316 141 331 138 320 135 334 139 323 133 328 133 329 129 90 32 339 144 352 141 342 138 358 142 344 135 349 135 352 131 95 35 363 147 379 143 365 140 383 143 368 137 372 137 376 134...

Page 13: ...il Drier must be replaced to eliminate mois ture from POE oil VI MAINTENANCE WARNING Electric shock hazard Can cause inju ry or death Before attempting to per form any service or maintenance turn the electrical power to unit OFF at dis connect switch es Unit may have multiple power supplies At the beginning of each cooling season the system should be serviced In addition the system should be clean...

Page 14: ...the thermostat 5 24VAC from indoor unit Y1 energizes the TOC timed off control if used which energizes contactor K1 6 K1 1 N O closes energizing compressor B1 and outdoor fan motor B4 4 Compressor B1 and outdoor fan motor B4 begin immediate operation END OF COOLING DEMAND 5 Cooling demand is satisfied Terminal Y1 is de energized 6 Compressor contactor K1 is de energized 7 K1 1 opens and compressor...

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