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Lennox International Inc
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Air Conditioner
Lennox International Inc
506510-01 Low Pressure Switch Operation, Page, 506510−01
Models:
Dave Lennox Signature Collection XC17 Air Conditioner
506510-01
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Install
New Outdoor Unit Placement
Dimension
Maintenance
3ROUTE CONTROL WIRES
Precautions and Procedures
Checklist
Recovering Refrigerant from Existing System
Operating and Temperature Pressures
Leak Testing the System
Page 40
Image 40
Figure 20. Low Pressure Switch Operation
Page 40
506510−01
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Image 40
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Contents
2P0410
P506510-01
General
Shipping and Packing List
Model Number Identification
Unit Dimensions − Inches mm and Parts Arrangement
XC17 −036− 230−2
Typical Unit Parts Arrangement
PLUMBING, SWITCHES AND SENSOR COMPONENTS
CONTROL BOX
Figure 1. Typical Parts Arrangements Page
Operating Gauge Set and Service Valves
SERVICE VALVES
To Access Service Port
Operating Angle Type Service Valve
Operating Ball Type Service Valve
RECOVERING
Recovering Refrigerant from Existing System
New Outdoor Unit Placement
Unit Stabilizer Bracket Use field−provided
DETAIL A
DETAIL B
DETAIL C
DETAIL D
Removing and Installing Panels
ACCESS PANEL REMOVAL
ACCESS AND LOUVERED
LOUVERED PANEL INSTALLATION
New or Replacement Line Set
LINE SET
INSTALLATION
Figure 5. Line Set Installation Page
Line Set Isolation
BRAZING
FLUSHING
Flushing the System
SENSING BULB INSTALLATION
EQUALIZER LINE INSTALLATION
FLUSHING LINE SET AND INDOOR COIL 2 OF
Uncased Coil Shown
Leak Testing the System
LINE SET AND INDOOR COIL
LEAK TEST
Page
EVACUATING
Evacuating the System
Precautions and Procedures
Electrical
ELECTROSTATIC DISCHARGE ESD
4ROUTE HIGH VOLTAGE AND GROUND WIRES
3ROUTE CONTROL WIRES
ACCESS VIEW Page
Page
Figure 7. Typical XC17 Wiring
XC17 SERIES
TEST PINS E33 DS11 and DS14
Main Control Jumpers and Terminals
DS13 and DS15
E12 E16
Table 3. Main Control Jumpers and Terminals
Page
Figure 9. ComfortSense 7000 Series Thermostat
Field Control Wiring
Air Hander/One−Stage Air Conditioner Page
Figure 10. ComfortSense 7000 Series Thermostat
Furnace/One−Stage Air Conditioner Page
GAUGE SET
Servicing Units Delivered Void of Charge
Unit Start−Up
System Refrigerant
AIRFLOW
WEIGH IN
APPROACH OR WEIGH-IN SUBCOOLING
APPROACH
SUBCOOLING
Figure 15. Using Approach Test and Charge Method
TEST AND CHARGE METHOD
Operating and Temperature Pressures
System Operation
TEST PINS FUNCTION
Page
Page
Main Control LED Alert Codes
Outdoor Main Control
Table 10. Compressor LED Alert Codes
Page
Outdoor Main
Page
Figure 19. High Pressure Switch Operation
XC17 SERIES
Page
Figure 20. Low Pressure Switch Operation
506510−01
Page
XC17 SERIES
DEALER
Maintenance
Verifying Fan Motor Operation
LED CODES AND SEQUENCE OF OPERATIONS
CONTROL PANEL
Page
BLACK WIRE
YELLOW WIRE
CONTROL PANEL
Page
Figure 25. Fan Motor Test Page
HOMEOWNER
Outdoor Unit
Outdoor Coil
Indoor Unit
XC17 Start−Up and Performance Checklist
Routine Maintenance
Preservice Check
Accessories
XC17 Start−Up and Performance Checklist
Suction Pressure
