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Page 8

505095M 1/3/06

Refrigerant Line Sets:  Transition From Vertical To Horizontal

Strap Liquid Line
To Vapor Line

METAL

SLEEVE

ANCHORED

HEAVY NYLON

WIRE TIE

AUTOMOTIVE

MUFFLER-TYPE

HANGER

WALL
STUD

Figure 11

VAPOR LINE − WRAPPED
IN ARMAFLEX

Strap Liquid
Line To Va-
por Line

WALL
STUD

LIQUID
LINE

METAL

SLEEVE

VAPOR LINE − WRAPPED
IN ARMAFLEX

LIQUID
LINE

Refrigerant Line Sets: Installing Vertical Runs (new construction shown)

NOTE − Similar installation practices should be used if line set is to be installed on exterior of outside wall.

PVC PIPE

FIBERGLASS

INSULATION

CAULK

OUTSIDE WALL

VAPOR LINE WRAPPED

WITH ARMAFLEX LIQUID

LINE

IMPORTANT!
Refrigerant
lines must
not contact
structure.

OUTSIDE WALL

LIQUID LINE

VAPOR LINE

IMPORTANT - Refrigerant
lines must not contact wall.

WOOD BLOCK

BETWEEN STUDS

STRAP

SLEEVE

WOOD BLOCK

STRAP

SLEEVE

WIRE TIE

WIRE TIE

WIRE TIE

Figure 12

INSIDE WALL

Summary of Contents for XC15-024

Page 1: ...low voltage wiring 2 Grommets for liquid and vapor lines Check equipment for shipping damage If you find any damage immediately contact the last carrier INSTALLATION INSTRUCTIONS XC15 Series Units CON...

Page 2: ...UND REDUCTION COVER SEE PAGE 20 FOR COVER INFORMATION COMPRESSOR TERMINAL PLUG HIGH PRESSURE SWITCH Figure 1 37 940 024 thru 042 47 1194 048 and 060 21 1 8 537 024 thru 042 31 1 8 791 048 and 060 10 3...

Page 3: ...NG This product and or the indoor unit it is matched with may contain fiberglass wool Disturbing the insulation during installation main tenance or repair will expose you to fiberglass wool dust Breat...

Page 4: ...uide the LIP of top tab inward fig ure 5 Details A and C then upward into the top slot of the hinge corner post S Rotate panel to vertical to fully engage all tabs S Holding the panel s hinged side fi...

Page 5: ...for field wiring diagram A complete unit wiring dia gram is located on the back side of the access panel NOTE For proper voltages select thermostat wire gauge per the following chart Wire run length A...

Page 6: ...Refrigerant Line If refrigerant lines are routed through a wall seal and iso late the opening so vibration is not transmitted to the build ing Pay close attention to line set isolation during installa...

Page 7: ...for use with R 410A refriger ant While brazing in the line set connections wrap a wet cloth around the valve body and the copper tube stubs 4 Quench the joints with a wet cloth to prevent possible he...

Page 8: ...LIQUID LINE Refrigerant Line Sets Installing Vertical Runs new construction shown NOTE Similar installation practices should be used if line set is to be installed on exterior of outside wall PVC PIPE...

Page 9: ...maintenance service repair and disposal of appliance Approved methods of recovery recycl ing or reclaiming must be followed 1 Remove existing R 22 refrigerant using the following appropriate procedure...

Page 10: ...liquid refrigerant to flow into the system through the vapor line valve Allow the refrigerant to pass from the cylinder and through the line set and the indoor coil before it enters the recovery machi...

Page 11: ...Schrader valve from contamination and serves as the primary leak seal To Access Schrader Port 1 Remove service port cap with an adjustable wrench 2 Connect gauge to the service port 3 When testing is...

Page 12: ...the manifold gauge set Open the valve on the R 410A cylinder va por only 3 Open the high pressure side of the manifold to allow R 410A into the line set and indoor unit Weigh in a trace amount of R 4...

Page 13: ...frozen bearings or binding 2 Inspect all factory and field installed wiring for loose connections 3 After evacuation is complete open the liquid line and vapor line service valves to release the refri...

Page 14: ...arge If weighing facili ties are not available or if charging the unit during warm weather use one of the following procedures Charge Using the Approach Method Outdoor Temp 65 F 18 C The following pro...

Page 15: ...results use the same electronic thermometer to check both outdoor ambient and liquid line temperatures F 1 0 C 0 5 1 With the manifold gauge hose still on the liquid service port and the unit operatin...

Page 16: ...0 psi Filter Drier A drier is factory installed in each XC15 unit A replace ment drier is available from Lennox Refer to Lennox Re pair Part Program System Operation Monitor LSOM The diagnostic indica...

Page 17: ...not present R and C wires are reversed Thermostat demand signal Y1 is present but compres sor not running 1 Compressor protector is open 2 Outdoor unit power disconnect is open 3 Compressor circuit br...

Page 18: ...is connect switch es Unit may have multiple power supplies Maintenance and service must be performed by a qualified installer or service agency At the beginning of each cool ing season check the syste...

Page 19: ...m call your Lennox dealer for assistance IMPORTANT Turn off electrical power to the unit at the disconnect switch before performing any maintenance The unit may have multiple power supplies 3 Reusable...

Page 20: ...tch from heating mode to cooling mode to maintain predetermined comfort settings Temperature Indicator The temperature indicator displays the actual room temperature Programmable Thermostats Your Lenn...

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