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XC14 SERIES

ROOF MOUNTING

Install the unit a minimum of 6 inches (152 mm) above the
roof surface to avoid ice build−up around the unit. Locate
the unit above a load bearing wall or area of the roof that
can adequately support the unit. Consult local codes for
rooftop applications.

NOTICE

Roof Damage!

This system contains both refrigerant and oil. Some
rubber roofing material may absorb oil and cause the
rubber to swell when it comes into contact with oil. The
rubber will then bubble and could cause leaks. Protect
the roof surface to avoid exposure to refrigerant and oil
during service and installation. Failure to follow this
notice could result in damage to roof surface.

Removing and Installing Panels

IMPORTANT

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

WARNING

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.

LOUVERED PANEL REMOVAL

Remove the louvered panels as follows:

1.

Remove two screws, allowing the panel to swing open slightly.

2.

Hold the panel firmly throughout this procedure. Rotate bottom corner of
panel away from hinged corner post until lower three tabs clear the slots as
illustrated in 

detail B.

3.

Move panel down until lip of upper tab clears the top slot in corner post as
illustrated in 

detail A

.

LOUVERED PANEL INSTALLATION

Position the panel almost parallel with the unit as illustrated in 

detail D 

with the

screw side as close to the unit as possible. Then, in a continuous motion:

1. Slightly rotate and guide the lip of top tab inward as illustrated in 

detail A

 and

C

; then upward into the top slot of the hinge corner post.

2. Rotate panel to vertical to fully engage all tabs.

3. Holding the panel’s hinged side firmly in place, close the right−hand side of

the panel, aligning the screw holes.

4. When panel is correctly positioned and aligned, insert the screws and

tighten

.

DETAIL A

DETAIL B

ROTATE IN THIS DIRECTION;

THEN DOWN TO REMOVE

PANEL

SCREW

HOLES

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.

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

PREFERRED ANGLE
FOR INSTALLATION

ANGLE MAY BE TOO
EXTREME

HOLD DOOR FIRMLY TO THE HINGED 

SIDE TO MAINTAIN 

FULLY−ENGAGED TABS

Detail C

Figure 6. Removing and Installing Panels

Summary of Contents for XC13 Series

Page 1: ...low the brazing technique illustrated starting on page 12 to avoid damaging the service valve s internal seals INSTALLATION INSTRUCTIONS Elite Series XC14 Units AIR CONDITIONER 506636 01 07 11 Superse...

Page 2: ...ove XC14 024 230 35 889 30 1 2 775 35 889 13 7 8 352 7 3 4 197 3 1 4 83 27 1 8 689 3 5 8 92 4 1 2 114 20 5 8 524 XC14 030 230 39 991 XC14 036 230 39 991 XC14 042 230 31 787 XC14 041 230 39 991 XC14 04...

Page 3: ...SUCTION LINE MUFFLER HIGH PRESSURE SWITCH S4 COMPRESSOR HARNESS GROUND LUG SINGLE POLE CONTACTOR 1POLE K1 1 DUAL RUN CAPACITOR C12 CONTROL PANEL PLUMBING AND SWITCHES COMPONENTS COMPRESSOR DISCHARGE...

Page 4: ...loss during shipping and handling Using an Allen wrench rated at less than 50Rc risks rounding or breaking off the wrench or stripping the valve stem recess See the Lennox Service and Application Note...

Page 5: ...2 1 12 TURN To Access Service Port A service port cap protects the service port core from contamination and serves as the primary leak seal 1 Remove service port cap with an appropriately sized wrench...

Page 6: ...ssure ratio meets a certain value or when the suction pressure is as high as 20 psig Compressor suction pressures should never be allowed to go into a vacuum Prolonged operation at low suction pressur...

Page 7: ...ss has a very high level of sound transmission For proper placement of unit in relation to a window see the provided illustration in figure 5 detail A PLACING UNIT ON SLAB When installing unit at grad...

Page 8: ...wo 2 degrees or two inches per five feet 50 mm per 1 5 m away from building structure MOUNTING SLAB BUILDING STRUCTURE GROUND LEVEL Outside Unit Placement Slab Mounting at Ground Level SAME FASTENERS...

Page 9: ...ERED PANEL REMOVAL Remove the louvered panels as follows 1 Remove two screws allowing the panel to swing open slightly 2 Hold the panel firmly throughout this procedure Rotate bottom corner of panel a...

Page 10: ...nnox L15 sweat non flare series line set or field fabricated refrigerant line sizes as listed in table 2 NOTE When installing refrigerant lines longer than 50 feet see the Lennox Refrigerant Piping De...

Page 11: ...R RAFTER AT 8 FEET 2 43 METERS INTERVALS THEN STRAP THE LIQUID LINE TO THE VAPOR LINE FLOOR JOIST OR ROOF RAFTER REFRIGERANT LINE SET INSTALLING HORIZONTAL RUNS NOTE Similar installation practices sho...

Page 12: ...razing alloys and flux contain materials which are hazardous to your health Avoid breathing vapors or fumes from brazing operations Perform operations only in well ventilated areas Wear gloves and pro...

Page 13: ...FROM SERVICE VALVE Flow regulated nitrogen at 1 to 2 psig through the low side refrigeration gauge set into the liquid line service port valve and out of the suction vapor line service port valve CUT...

Page 14: ...structions for the next step in preparing the unit WHEN BRAZING LINE SET TO SERVICE VALVES POINT FLAME AWAY FROM SERVICE VALVE PREPARATION FOR NEXT STEP 7 WARNING 1 FIRE PERSONAL INJURY OR PROPERTY DA...

Page 15: ...on valve and the two Teflon rings H Use a field provided fitting to temporary reconnect the liquid line to the indoor unit s liquid line orifice housing LOW HIGH EXISTING INDOOR UNIT GAUGE MANIFOLD IN...

Page 16: ...LINE ASSEMBLY WITH BRASS NUT DISTRIBUTOR ASSEMBLY A Remove the field provided fitting that temporary reconnected the liquid line to the indoor unit s distributor assembly B Install one of the provided...

Page 17: ...nder of HFC 410A refrigerant to the center port of the manifold gauge set Open the valve on the HFC 410A cylinder vapor only B Open the high pressure side of the manifold to allow HFC 410A into the li...

Page 18: ...d 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 and closing the manifold gauge valves F Wh...

Page 19: ...Refer to the unit nameplate for minimum circuit ampacity and maximum fuse or circuit breaker HACR per NEC Install power wiring and properly sized disconnect switch NOTE Units are approved for use onl...

Page 20: ...s XC13 XC13 XC13 XC13 XC13 XC13 XC13 Figure 14 24VAC Control Wiring Diagrams Field Installed HIGH PRESSURE SWITCH S4 CRANKCASE THERMOSTAT S40 CRANKCASE HEATER HR1 DUAL RUN CAPACITOR C12 FAN MOTOR B4 C...

Page 21: ...TECTION SWITCH S5 OR S173 HIGH PRESSURE SWITCH S4 CRANKCASE THERMOSTAT S40 CRANKCASE HEATER HR1 DUAL RUN CAPACITOR C12 FAN MOTOR B4 COMPRESSOR B1 CONTACTOR K1 GROUND LUG Figure 16 Typical Factory Wiri...

Page 22: ...Page 22 506636 01 Figure 17 Typical Unit Wiring Diagram...

Page 23: ...ly at the disconnect switch The voltage must be within the range listed on the unit s nameplate If not do not start the equipment until you have consulted with the power company and the voltage condit...

Page 24: ...anifold gauge set connected to unit Thermometers to measure outdoor ambient temperature to measure liquid line temperature to measure suction line temperature TXV FIXED ORIFICE APPROACH OR SUBCOOLING...

Page 25: ...14 13 12 11 10 70 19 19 18 18 17 17 16 15 15 14 13 12 11 10 57 58 59 60 61 62 63 64 65 66 67 68 69 70 Temp of air entering indoor coil F INDOOR COIL DRY BULB DRY BULB WET BULB B TDrop 19 A Dry bulb We...

Page 26: ...igh in or remove refrigerant based upon line length SC Subcooling Values F 1 0 C 0 6 BLOCK OUTDOOR COIL sometimes necessary with lower temperatures Use cardboard or plastic sheet to restrict the airfl...

Page 27: ...heat SH VAP _____ SAT ______ SH ______ 11 Record the wet bulb temperature air entering indoor coil WB _______ 12 Record outdoor ambient temperature 13 Compare results with table to the left If value i...

Page 28: ...9 395 151 421 152 406 149 420 146 418 145 110 43 426 150 420 148 422 148 446 151 424 153 447 153 430 150 447 148 444 146 115 46 457 153 447 150 449 150 480 152 453 155 476 154 460 152 473 150 471 147...

Page 29: ...coil Consult your installing contractor for proper intervals procedures for your geographic area or service contract INDOOR UNIT 1 Clean or change filters 2 Adjust blower speed for cooling Measure the...

Page 30: ...ner manual for instructions on how to operate your thermostat Preservice Check If your system fails to operate check the following before calling for service Verify room thermostat settings are correc...

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