LENNOX XC13N Air Conditioner User Manual

LENNOX XC13N Air Conditioner User Manual

MODEL NUMBER IDENTIFICATION

 FEATUR E HIGHLIGHTS

1. Condenser Fan
2. Copper Tube/Enhanced Fin Coil
3. High Pressure Switch
4. High Capacity Liquid Line Drier
5. Scroll Compressor
6. Heavy Gauge Steel Cabinet
7. SmartHinge™ Louvered Coil Protection
8. Refrigerant Line Access

APPROVALS AN D WARRANTY

APPROVALS

• AHRI Certified to AHRI Standard 210/240
• For AHRI Certified system match-ups and expanded ratings, visit LennoxPros.com
• Sound rated in Lennox reverberant sound test room in accordance with test conditions included in AHRI Standard 270- 2008
• Tested in the Lennox Research Laboratory environmental test room
• Rated according to S. Department of Energy (DOE) test procedures
• Region specific models meet the minimum efficiency requirements for S. DOE Federal Regional Standards in that area
• Air conditioners and components within bonded for grounding to meet safety standards for servicing required by ETL and CEC
• Units are ETL certified for the S. and Canada
• ISO 9001 Registered Manufacturing Quality System

WARRANTY

• Compressor:
  • Limited ten years in residential installations
  • Limited five years in non-residential installations
• All other covered components:
  • Limited five years in residential installations
  • Limited one year in non-residential installations

NOTE – Refer to Lennox Equipment Limited Warranty certificate included with unit for specific details.

 FEATURES

APPLICATIONS

• 5 through 5 tons
• Single phase power supply
• Sound levels as low as 74 dBA
• Vertical air discharge
• Matching add-on furnace indoor coils or air handlers provide a wide range of cooling capacities and See AHRI System Matches
• See Indoor Coils and Air Handlers tab sections for data
• Shipped completely factory assembled, piped, and wired
• Each unit is test operated at the factory ensuring proper operation

NOTE – Installer must set air conditioner, connect refrigerant lines, and make electrical connections to complete job.

REFRIGERATION SYSTEM

R-410A Refrigerant

• Non-chlorine, ozone friendly
• Unit is factory pre-charged

NOTE – Total system refrigerant charge is dependent on outdoor unit size, indoor unit size and refrigerant line length.
NOTE – Refer to the unit-mounted charging sticker to determine correct amount of charge required.

B Condenser Fan

• Direct drive fan
• Vertical air discharge
• Sleeve bearings
• Inherently protected
• Enclosed fan motor
• Corrosion-resistant PVC (polyvinyl chloride) coated steel fan guard

C Copper Tube/Enhanced Fin Coil

• Lennox designed and fabricated coil
• Ripple-edged aluminum fins
• Copper tube construction
• Lanced fins for maximum fin surface exposure
• Fin collars grip tubing for maximum contact area
• Flared shoulder tubing connections
• Silver soldering construction
• Coil is factory tested under high pressure
• Entire coil is accessible for cleaning

D High Pressure Switch

• Shuts off unit if abnormal operating conditions cause the discharge pressure to rise above setting
• Automatic resetDischarge Thermostat
• Factory installed on the discharge line of the compressor
• SPST, auto-reset
• Removes power from the compressor when discharge temperature exceeds the factory setting of 220ºFE High Capacity Liquid Line Drier
• Factory installed in the liquid line
• Drier traps moisture or dirt
• 100% molecular-sieve, bead type, bi-flow drier

FEATURES

REFRIGERATION SYSTEM (continued)

Refrigerant Flow Control

• Units applicable to expansion valve systems or RFC systems when matched with specific indoor coils

RFCIV:

• Accurately metersvolumetric efficiency and quiet refrigerant in system
•  Refrigerant control is accomplished by exact sizing of refrigerant metering orifice

Optional Accessories

• Field installed on certain indoor units
• See TXV Usage Table
• Chatleff-style fittings

Freezestat

• Senses suction line temperature
• Cycles compressor off when suction line temperature falls below it’s setpoint
• Opens at 29°F and closes at 58°F
• Installs on or near the discharge line of the evaporator or on the suction line

Loss of Charge Switch Kit

• Protects compressor from damage from low refrigerant charge conditions
• SPST
• Normally-closed
• Automatic reset

Refrigerant Line Kits

• Refrigerant lines are shipped refrigeration clean
• Lines are cleaned, dried, pressurized and sealed at factory
• Suction line fully insulated
• Lines are stubbed at both ends

NOTE – Not available for -060 models and must be field fabricated

COMPRESSOR

Scroll Compressor

• High efficiency with uniform suction flow
• Constant discharge flow, high volumetric efficiency and quiet operation
• Low gas pulses during compression reduces operational sound levels
• Compressor motor is internally protected from excessive current and temperature
• Muffler in discharge line reduces operating sound levels
• Compressor is installed in the unit on resilient rubber mounts for vibration free operation

Scroll Compressor Operation

• Two involute spiral scrolls matched together generate a series of crescent-shaped gas pockets between them
• During compression, one scroll remains stationary while the other scroll orbits around it
• Gas is drawn into the outer pocket, the pocket is sealed as the scroll rotates
• As the spiral movement continues, gas pockets are pushed to the center of the Volume between the pockets is simultaneously reduced
• When the pocket reaches the center, gas is now at high pressure and is forced out of a port located in the center of the fixed scrolls
• During compression, several pockets are compressed simultaneously resulting in a smooth continuous compression cycle
• Continuous flank contact, maintained by centrifugal force, minimizes gas leakage and maximizes efficiency
• Compressor is tolerant to the effects of slugging and If this occurs, scrolls separate, allowing liquid or contaminants to be worked toward the center and discharged Optional Accessories     Compressor Crankcase Heater
• Protects against refrigerant migration that can occur during low ambient operation

Compressor Sound Cover

• Reinforced vinyl compressor cover
• 1-1/2 inch thick batt of fiberglass insulation
• Hook and loop fastening tape on all open edges

Compressor Hard Start Kit

• Single-phase units are equipped with a PSC compressor motor
• This type of motor normally doesn’t need a potential relay and start capacitor
• For conditions such as low voltage kit may be required to increase the compressor starting torque

CONTROLS

Optional Accessories iComfort® E30 Smart Wi-Fi Thermostat

• Wi-Fi enabled, electronic 7-day, universal, multi-stage, programmable, touchscreen thermostat
• 3 Heat/2 Cool
• Auto-changeover
• Controls dehumidification during cooling mode and humidification during heating mode
• Offers enhanced capabilities including

humidification / dehumidification / dewpoint measurement and control, Humiditrol® control, and equipment maintenance reminders

• Easy to read 7 color touchscreen (measured diagonally)
• LCD display with backlight shows the current and set temperature, time, inside relative humidity, system status (operating mode and schedules) and outside temperature (optional outdoor sensor required)
• Smooth Setback Recovery starts system early to achieve setpoint at start of program period
• Compressor short-cycle protection (5 minutes)
• Up to four separate schedules are available plus Schedule IQ™
• One-Touch Away Mode – A quick and easy way to set the cooling and heating setpoints while away
• Smart Away™ – Uses geo-fencing technology to determine when the homeowner is within a

predetermined distance from the home to operate the system when leaving, away and arriving

• Wi-Fi remote monitoring and adjustment through a home wireless network for desktop PCs, laptops and apps for smartphones or tablets
• Smart home automation compatible with Apple HomeKit™, Amazon Alexa®, Google Assistant and IFTTT
• Service Dashboard features online real-time monitoring of installed iComfort® thermostats
• High Definition Color Display with Subbase, Smart Hub Controller, wallplate (for retrofit installations) furnished for easy installation
• See the iComfort® E30 Smart Wi-Fi Thermostat Product
  

Specifications bulletin for more information
Remote Outdoor Temperature Sensor

• Used with the iComfort® E30 Smart
• Outdoor sensor allows thermostat to display outdoor
• Sensor is auto-detected when connected to thermostat

NOTE – Sensor is required for high and low balance points option.
NOTE – Sensor is required for the
Enhanced Dehumidification Accessory (EDA). Thermostat

• Thermostat is not furnished with unit
• See Lennox Price Book for selection Indoor Blower Off Delay Relay
• Delays the indoor blower-off time during the cooling cycle Low Ambient Kit
• Air conditioners can operate down to 45°F outdoor air temperature without additional controls
• Allows unit to operate properly down to 30°F

NOTE – Crankcase heater and freezestat should be installed on compressors equipped with a low ambient kit.
NOTE – A compressor lock-out thermostat should be added to terminate compressor operation below recommended operation conditions. Compressor Time- Off

• Kit prevents compressor short-cycling
• Allows time for suction and discharge pressure to equalize
• Permits compressor start-up in an unloaded condition
• Automatic reset
• Five minute delay between compressor shut-off and start-up

CABINET

G • Heavy-gauge steel construction

• Pre-painted cabinet finish
• Control box is conveniently located with all controls factory wired
• Corner patch plate allows access to compressor components
• Drainage holes are provided in base section
• High density polyethylene unit support feet raise the unit off of the mounting surface, away from damaging moisturePermaGuard™ Unit Base
• Durable zinc-coated base section resists rust and corrosion

H SmartHinge™ Louvered Coil Protection

• Steel louvered panels

provides complete coil protection

• Panels are hinged to allow easy cleaning and servicing of coils
• Panels may be completely removed
• Interlocking tabs and slotsassure tight fit on cabinet

I Refrigerant Line Connections, Electrical Inlets, Service Valves

• Sweat connection suction and liquid lines
• Located on corner of unit cabinet
• Fully serviceable brass service valves
• Suction valve can be fully shut off, while liquid valve may be front seated to manage refrigerant charge while servicing system
• Refrigerant line connections and field wiring inlets are located in one central area of cabinet for easy access
• See dimension drawing

SPECIFICATIONS

General Data| Model No.| North Region| XC13N018| XC13N024| XC13N030| XC13N036| XC13N042| XC13N048| XC13N060
 | Nominal Tonnage| 1.5| 2| 2.5| 3| 3.5| 4| 5
Connections (sweat)|  | Liquid line o.d. – in.| 3/8| 3/8| 3/8| 3/8| 3/8| 3/8| 3/8
 | Suction line o.d. – in.| 3/4| 3/4| 3/4| 3/4| 7/8| 7/8| 7/8
1 Refrigerant (R-410A) Furnished| 4 lbs. 1 oz.| 3 lbs. 14 oz.| 5 lbs. 4 oz.| 5 lbs. 10 oz.| 6 lbs. 12 oz.| 7 lbs. 12 oz.| 9 lbs. 0 oz.
RFCIV Metering Orifice Size Furnished| 0.051| 0.057| 0.059| 0.072| 0.076| 0.082| 0.092
Outdoor Coil| Net face area sq. ft.| Outer coil| 11.33| 11.33| 13.22| 13.22| 21.00| 18.67| 16.33
Inner coil| – – –| – – –| – – –| – – –| – – –| – – –| 15.71
Tube diameter – in.| 5/16| 5/16| 5/16| 5/16| 5/16| 5/16| 5/16
Number of rows| 1| 1| 1| 1| 1| 1| 2
 | Fins per inch| 26| 26| 26| 26| 26| 26| 22
Outdoor Fan|  |  | Diameter – in.| 18| 18| 18| 18| 22| 22| 22
 | Number of blades| 3| 3| 4| 4| 4| 4| 4
 |  |  | Motor hp| 1/10| 1/10| 1/5| 1/5| 1/4| 1/4| 1/4
 |  |  |  | Cfm| 2350| 2350| 2400| 2400| 3670| 3670| 3600
 |  |  |  | Rpm| 1075| 1075| 1075| 1075| 825| 825| 825
 |  |  |  | Watts| 165| 165| 185| 185| 295| 295| 285
Shipping Data – lbs. 1 package| 150| 150| 161| 164| 240| 232| 249
ELECTRICAL DATA
Line voltage data – 60 Hz – 1ph| 208/230V| 208/230V| 208/230V| 208/230V| 208/230V| 208/230V| 208/230V
2 Maximum overcurrent protection (MOCP) amps| 20| 25| 25| 35| 40| 50| 60
3 Minimum circuit ampacity (MCA)| 12.4| 14.7| 17.1| 20.4| 25.7| 32.0| 34.6
Compressor|  | Rated load amps| 9.4| 11.2| 12.8| 15.4| 19.2| 24.2| 26.3
 |  | Locked rotor amps| 56.6| 60.8| 67.8| 83.8| 123.9| 100| 125
 |  |  | Power factor| 0.98| 0.98| 0.98| 0.99| 0.99| 0.99| 0.99
Condenser Fan Motor|  | Full load amps| 0.7| 0.7| 1.2| 1.1| 1.7| 1.7| 1.7
 | Locked rotor amps| 1.4| 1.4| 2.0| 2.0| 3.2| 3.2| 3.2
CONTROLS – ORDER SEPARATELY
iComfort ® E30 Smart Wi-Fi

Thermostat

|  | 20A65| •| •| •| •| •| •| •
Remote Outdoor Temperature Sensor|  | X2658| •| •| •| •| •| •| •
OPTIONAL ACCESSORIES – ORDER SEPARATELY
Compressor Crankcase Heater| 93M04| •| •| •| •| |  |
 | 93M05|  |  |  |  | •| •| •
Compressor Hard Start Kit| Copeland| 10J42| •| •| •| •| •| •| •
 | LG| 88M91| •| •| •| •| •| •| •
Compressor Low Ambient Cut-Off Switch|  | 45F08| •| •| •| •| •| •| •
Compressor Sound Cover|  | 18J42| •| •| •| •| •| •| •
Compressor Time-Off Control|  | 47J27| •| •| •| •| •| •| •
Freezestat| 3/8 in. tubing|  | 93G35| •| •| •| •| •| •| •
5/8 in. tubing|  | 50A93| •| •| •| •| •| •| •
Loss of Charge Switch Kit|  | 84M23| •| •| •| •| •| •| •
Indoor Blower Off Delay Relay|  | 58M81| •| •| •| •| •| •| •
4 Low Ambien| t| Kit (Fan Cycling| )| 34M72| •| •| •| •| •| •| •
Refrigerant

Line Sets

| L15-41-20, L15-41-30, L15-41-40, L15-41-50| •| •| •| •| |  |
L15-65-30, L15-65-40,

L15-65-50

|  |  |  |  | •| •|
Field Fabricate|  |  |  |  |  |  | •

NOTE – Extremes of operating range are plus 10% and minus 5% of line voltage.

1. Refrigerant charge sufficient for 15 ft. length of refrigerant lines
2. HACR type circuit breaker or fuse.
3. Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements.
4. Crankcase Heater and Freezestat are recommended with Low Ambient Kit.

DIMENSIONS

Model

| A| B| C
---|---|---|---
in.| mm| in.| mm| in.| mm
018, 024| 27| 686| 27| 686| 28| 711
030, 036| 31| 787| 27| 686| 28| 711
042| 39| 991| 30-1/2| 775| 35| 889
048| 35| 889| 30-1/2| 775| 35| 889
060| 31| 787| 30-1/2| 775| 35| 889
SOUND DATA

1 Unit Model

| Octave Band Sound Power Levels dBA, re 10 -12 Watts Center Frequency – HZ| 1 Sound Rating Number (dBA)| ² Estimated Sound Pressure Level at

Distance From Unit (dBA at distance in ft.)

125| 250| 500| 1000| 2000| 4000| 8000| 3| 5| 10| 15| 50
018| 67.5| 66.5| 68.5| 66.5| 60.5| 56| 52| 74| 67| 62| 56| 53| 42
024| 69.5| 66| 68.5| 65.5| 61| 61.5| 58.5| 74| 67| 62| 56| 53| 42
030| 70.5| 71| 73.5| 70.5| 67.5| 61.5| 57.5| 76| 69| 64| 58| 55| 44
036| 69.5| 72.5| 74.5| 71.5| 68.5| 63.5| 58.5| 76| 69| 64| 58| 55| 44
042| 73.5| 71.5| 72.5| 69.5| 65.5| 60.5| 57.5| 76| 69| 64| 58| 55| 44
048| 73.5| 72.5| 72.5| 71.5| 66.5| 61.5| 61.5| 76| 69| 64| 58| 55| 44
060| 75| 72.5| 73.5| 71| 65.5| 61| 60| 76| 69| 64| 58| 55| 44

NOTE – the octave sound power data does not include tonal correction.

1. Tested according to AHRI Standard 270-2008 test conditions
2. Estimated sound pressure level at distance based on AHRI Standard 275-2010 method for equipment located on the ground, roof, or on side of building wall with no
   adjacent reflective surface within 9.8 feet. Sound pressure levels will increase based on changes to assumptions. For other applications, refer to AHRI Standard 275.

FIELD WIRING

A Two Wire Power (not furnished)
B – Two Power (not furnished). See Electrical Data
C – Four Wire Low Voltage (not furnished). 18 ga. minimum D – Five Wire Low Voltage (not furnished). 18 ga. minimum
All wiring must conform to NEC or CEC and local electrical codes

INSTALLATIO N CLEARANCES

NOTES:

Service clearance of 30 in. (762 mm) must be maintained on one of the sides adjacent to the control box.
Clearance to one of the other three sides must be 36 in. (914 mm)
Clearance to one of the remaining two sides may be 12 in. (305 mm) and the final side may be 6 in. (152 mm).
A clearance of 24 in. (610 mm) must be maintained between two units. 48 in. (1219 mm) clearance required on top of unit.

TXV/ORIFIC E USAGE

Use this table for C35, CH23, CH35 and CR33 Field Installed TXV/Orifice Match-Ups

Outdoor Unit| Refrigerant Metering Orifice

(RFC)

| Thermal Expansion Valve (TXV)
---|---|---
Order No.| Orifice Size
018| 10W92| 0.050| 12J18
024| 97M75| 0.057| 12J18
030| 10W96| 0.059| 12J18
036| 10W85| 0.072| 12J19
042| 97M78| 0.076| 12J20
048| 97M79| 0.082| 12J20
060| 10M13| 0.090| 12J20

CX35 and CHX35 coils and all Lennox air handlers are shipped with a factory installed TXV. In most cases, no change out of the valve is needed.
If a change out is required it will be listed in the “TXV SUBSTITUTIONS” table by size. The correct TXV must be ordered separately and field installed.
C35 and CH35 coils – Use the RFC orifice shipped with the outdoor unit or replace the factory installed RFC orifice with the expansion valve listed.
CR33 and CH23 coils – Use the RFC orifice shipped with the outdoor unit or use the expansion valve listed.

**AHR I STANDAR D 210/ 240**

Cooling or heating capacities are net values, including the effects of blower motor heat, and do not include supplementary heat. Power input is the total power input to the compressor(s) and fan(s), plus any controls and other items required as part of the system for normal operation.

Units which do not have an indoor air-circulating blower furnished as part of the model, i.e., split system with indoor coil only, is established by subtracting from the total cooling capacity 1250 Btu/h per 1,000 cfm, and by adding the same amount to the heating capacity. Total power input for both heating and cooling is increased by 365 W per 1,000 cfm of indoor air circulated.

TXV SUBSTITUTION

A general guide for replacing the factory installed TXV if the indoor unit (coil/air handler) is larger or smaller than the outdoor unit.

Outdoor Unit| Indoor Unit| TXV

Furnished

| TXV

Replacement

---|---|---|---
Size| Tons| Size| Tons
018| 1.5| 30/36| 2.5/3| 12J19| 12J18
018| 1.5| 36| 3| 12J19| 12J18
018| 1.5| 42| 3.5| 12J20| 12J18
018| 1.5| 48| 4| 12J20| 12J18
018| 1.5| 49| 4| 12J20| 12J18
018| 1.5| 50/60| 4/5| 12J20| 12J18
018| 1.5| 51/61| 4/5| 12J20| 12J18
018| 1.5| 60| 5| 12J20| 12J18
024| 2| 42| 3.5| 12J20| 12J18
024| 2| 48| 4| 12J20| 12J18
024| 2| 49| 4| 12J20| 12J18
024| 2| 50/60| 5| 12J20| 12J18
024| 2| 51/61| 5| 12J20| 12J18
024| 2| 60| 5| 12J20| 12J18
030| 2.5| 42| 3.5| 12J20| 12J18
030| 2.5| 43| 3.5| 12J20| 12J18
030| 2.5| 48| 4| 12J20| 12J18
030| 2.5| 49| 4| 12J20| 12J18
036| 3| 24| 2| 12J18| 12J19
036| 3| 30| 2.5| 12J18| 12J19
042| 3.5| 24| 2| 12J18| 12J20
042| 3.5| 30| 2.5| 12J18| 12J20
042| 3.5| 30/36| 3| 12J19| 12J20
042| 3.5| 36| 3| 12J19| 12J20
048| 4| 30/36| 2.5/3| 12J19| 12J20
048| 4| 36| 3| 12J19| 12J20

TXV Ranges

12J18 – 1.5 to 2.5 ton systems – Use on 2.5 ton (030) and lower systems.
12J19 – 3 ton systems – Use down to 2 ton (024) systems.
12J20 – 3.5 to 5 ton systems – Use down to 3 ton (036) systems.

REVISIONS

Sections| Description of Change
Electrical Data| Updated for 030, 036,042 models.

RFC Orifice size updated for 030 model.

Specifications| Refrigerant charge updated for 030, 036,042 models.

NOTE – Due to Lennox’ ongoing commitment to quality, Specifications, Ratings and Dimensions subject to change without notice and without incurring liability. Improper installation, adjustment, alteration, service or maintenance can cause property damage or personal injury.
Installation and service must be performed by a qualified installer and servicing agency.

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References

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