Table of Contents
Advertisement
E2008 Lennox Industries Inc.
Dallas, Texas, USA
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
WARNING
Improper
installation,
service or maintenance can cause personal injury,
loss of life, or damage to property.
Installation and service must be performed by a
licensed professional installer (or equivalent) or a
service agency.
CAUTION
Physical contact with metal edges and corners
while applying excessive force or rapid motion can
result in personal injury. Be aware of, and use
caution when working near these areas during
installation or while servicing this equipment.
IMPORTANT
This unit must be matched with an indoor coil as
specified in Lennox Engineering Handbook. Coils
previously charged with HCFC−22 must be
flushed.
IMPORTANT
The Clean Air Act of 1990 bans the intentional
venting of refrigerant (CFCs, HCFCs AND HFCs) as
of July 1, 1992. Approved methods of recovery,
recycling or reclaiming must be followed. Fines
and/or
incarceration
noncompliance.
06/08
*2P0608*
adjustment,
alteration,
may
be
levied
for
INSTALLATION
INSTRUCTIONS
Dave Lennox Signature
Collection XC15 Units
AIR CONDITIONER
506044−01
06/08
Supersedes 04/08
Table of Contents
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shipping and Packing List
Check the unit for shipping damage and listed times below
are intact. If damaged, or if parts are missing, immediately
contact the last shipping carrier.
1
Assembled outdoor unit.
1
Bag Assembly
S
1
Bushing (for low voltage wiring
S
2
Isolation grommets for liquid and suction
lines.
Figure 1. Bag Assembly (Parts)
Page 1
. . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . .
. . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . .
ISOLATION GROMMETS (2)
506044−01
*P506044-01*
®
Litho U.S.A.
1
3
2
3
. . . . .
5
5
5
7
8
9
11
12
. . . . . . . .
13
14
15
15
15
16
19
. . . . . . .
20
22
. .
23
23
24
24
BUSHING (1)
Advertisement
Table of Contents
Related Manuals for Lennox Dave Lennox Signature Collection XC15
Summary of Contents for Lennox Dave Lennox Signature Collection XC15
-
Page 1: Table Of Contents
If damaged, or if parts are missing, immediately contact the last shipping carrier. This unit must be matched with an indoor coil as Assembled outdoor unit. specified in Lennox Engineering Handbook. Coils Bag Assembly previously charged with HCFC−22 must be flushed. -
Page 2: Unit Dimensions And Parts Arrangement
DO NOT REMOVED THE THREE VIBRATION ISOLATOR SLEEVES (IF PRESENT) FROM THE COMPRESSOR DISCHARGE LINE Lennox Industries Inc. P.O. Box 799900 Figure 1. Discharge Line Vibration Isolators Dallas, TX 75379−9900 Page 2... -
Page 3: Xc15 Outdoor Unit
HFC−410A refrigerant. This outdoor unit must be installed with a matching indoor unit and line set as outlined in the Lennox XC15 Engineering Handbook. This outdoor unit is designed for use in systems that use thermal expansion valve (TXV) refrigerant metering devices. - Page 4 OUTDOOR UNIT (Uncased Coil Shown) OUTDOOR COIL HIGH PRESSURE PRESSURE LIQUID LINE SUCTION LINE GAUGE MANIFOLD SERVICE VALVE SERVICE VALVE FILTER DRIER HFC−410A COMPRESSOR DRUM Figure 4. Typical Manifold Gauge Connection Setup With Torque Wrench: Finger tighten and then SERVICE PORT CAP tighten per table 1.
-
Page 5: Recovering Refrigerant From Existing System
allowed to go into a vacuum. Prolonged operation at Recovering Refrigerant from Existing low suction pressures will result in overheating of the System scrolls and permanent damage to the scroll tips, drive bearings and internal seals). Remove existing HCFC−22 refrigerant using one of the following methods: Once the compressor can not pump down to a lower pressure due to one of the above system conditions, shut... - Page 6 NOTES: Service clearance of 30 in. (762 mm) must be maintained on one of the sides adjacent to the control BUILDING box. STRUCTURE Clearance to one of the other three sides must be 36 in. (914 mm) Clearance to one of the remaining two sides may be MOUNTING SLAB 12 in.
-
Page 7: Removing And Installing Panels
STABILIZING UNIT ON UNEVEN SURFACES Removing and Installing Panels To help stabilize an outdoor unit, some installations may require strapping the unit to the pad using brackets and ACCESS PANEL anchors commonly available in the marketplace. Remove and reinstall access panel as shown in figure 13. With unit positioned at installation site, remove two side louvered panels to expose the unit base pan. -
Page 8: New Or Replacement Line Set
NOT DESIGNED TO SUPPORT WEIGHT OF PANEL. from the outdoor unit (braze connections) to the indoor unit coil (flare or sweat connections). Use Lennox L15 (sweat, non−flare) series line set, or use field−fabricated refrigerant lines as listed in table 2. -
Page 9: Brazing Line Set Connections
Table 2. Refrigerant Line Set AUTOMOTIVE MUFFLER-TYPE HANGER ANCHORED HEAVY NYLON Field WIRE TIE OR AUTOMOTIVE Recommended Line Set MUFFLER-TYPE HANGER Connections Model Liquid Vapor Liquid Vapor Line Line Line Line Line Sets −024 WALL L15−41 STUD 3/8 in. 3/4 in. 3/8 in 3/4 in. - Page 10 REMOVE CAP AND CORE FROM ATTACH CUT AND DEBUR BOTH LIQUID AND SUCTION GAUGES SERVICE PORTS SERVICE PORT MUST BE OPEN TO ALLOW EXIT SERVICE POINT FOR NITROGEN VALVE SUCTION LINE OUTDOOR INDOOR UNIT UNIT LIQUID LINE SERVICE VALVE FLOW NITROGEN WRAP BRAZE LINE SET NITROGEN...
-
Page 11: Removing Indoor Unit Metering Device
5. Flow regulated nitrogen (at 1 to 2 psig) through the TYPICAL FIXED ORIFICE REMOVAL PROCEDURE refrigeration gauge set into the valve stem port (Uncased Coil Shown) DISTRIBUTOR TUBES connection on the liquid line service valve and out of LIQUID LINE ORIFICE HOUSING the valve stem port connection on the suction service valve. -
Page 12: Flushing The System
Take care to empty all suction service valve, existing traps. Polyol ester (POE) oils are used in Lennox units charged with HFC−410A refrigerant. HCFC−22 gauge set to the liquid line valve, Residual mineral oil can act as an insulator, Recovery machine with an empty recovery tank to preventing proper heat transfer. -
Page 13: Installing New Indoor Unit Metering Device
3. Invert the cylinder of clean HCFC−22 and open its TYPICAL TXV INSTALLATION PROCEDURE valve to allow liquid refrigerant to flow into the system The TXV unit can be installed internal or external to the through the suction line valve. Allow the refrigerant to indoor coil. -
Page 14: Testing For Leaks
6. Attach the suction line sensing bulb in the proper IMPORTANT orientation as illustrated in figure 28 using the clamp and screws provided. Leak detector must be capable of sensing HFC NOTE − Insulating the sensing bulb once installed may be refrigerant. -
Page 15: Evacuating The System
10. After leak testing disconnect gauges from service manifold gauge valves to release the dry nitrogen from ports. the line set and indoor unit. 8. Reconnect the manifold gauge to the vacuum pump, Evacuating the System turn the pump on, and continue to evacuate the line set and indoor unit until the absolute pressure does not WARNING rise above 500 microns (29.9 inches of mercury) within... -
Page 16: Start−Up And Charging Procedures
NOTE − A COMPLETE UNIT WIRING DIAGRAM IS LOCATED INSIDE THE UNIT CONTROL BOX COVER. Figure 30. Typical Wiring Diagram NOTE − See unit wiring diagram for power supply 3. After evacuation is complete, open the liquid line and connections. If indoor unit is not equipped with blower suction line service valves to release the refrigerant relay. - Page 17 1. Determine the desired DT Measure entering air temperature Temp. using dry bulb (A) and wet bulb (B). DT is the intersecting value of A 24 24 24 23 23 22 22 22 20 19 18 17 16 15 of air and B in the table (see triangle).
- Page 18 1. Confirm proper airflow across coil using figure START: Measure outdoor ambient temperature 2. Compare unit pressures with Table 5, Normal ABOVE Operating Pressures. USE WEIGH-IN METHOD DO NOT CHARGE UNIT 3. Use APPROACH to correctly charge unit or to Outdoor verify the charge is correct.
-
Page 19: System Operation
HIGH PRESSURE SWITCH in Unit Dimensions on page 2. A replacement drier is XC15 units are equipped with a high-pressure switch that available from Lennox. Refer to Lennox Repair Part is located in the liquid line of the compressor as illustrated Program. -
Page 20: Lennox System Operation Monitor (Lsom)
Alert Communication (L Terminal) (Optional) is detected by the module. The L terminal is used to communicate alert codes to the room thermostat. On selected Lennox Comfort Sense, RESETTING ALERT CODES Elite and Merit thermostats there is an L terminal for direct Alert codes can be reset manually or automatically: input from the LSOM. - Page 21 compressor to run. The yellow LED will begin flashing 4. Reapply power to the compressor and 24VAC power a code 8 indicating a welded contactor. to the LSOM; the yellow LED will flash the previous code for 60 seconds and then turn off. If the yellow 3.
-
Page 22: Maintenance
Status LED Status LED Description Status LED Troubleshooting Information Condition Thermostat demand signal is intermittent. Short Cycling − Compressor is Yellow Flash Code 3 Time delay relay or control board is defective. running only briefly If high pressure switch is present, see Flash Code 2 information. Run capacitor has failed. -
Page 23: Sound Reduction Cover And Assembly Procedure
UNIT NAMEPLATE: _________ ACTUAL: __________ prevent your unit from operating at its most efficient level. 1. Air Filter Ask your Lennox dealer to show you where Sound Reduction (SR1) Cover your indoor unit’s filter is located. It will be either at the... -
Page 24: Optional Accessories
Optional Accessories the compressor or furnace is operating. This mode is required when constant air circulation or filtering is desired. Refer to the Lennox XC15 Engineering Handbook for the System Switch Set the system switch for heating, latest available optional accessories for this unit.
Need help?
Do you have a question about the Dave Lennox Signature Collection XC15 and is the answer not in the manual?
Questions and answers
I’m working on an xc15-036-240-04. Is there a schrader valve under the high pressure switch so that when I unscrew the switch I don’t loose the pressure in the condenser?
The provided context does not explicitly mention a Schrader valve under the high-pressure switch to maintain pressure when unscrewing the switch. However, it does mention that a Schrader valve is factory-installed on a service port and protected by a service port cap. This suggests that Schrader valves are used in the system, but it does not confirm their presence specifically under the high-pressure switch.
This answer is automatically generated