Lennox XP14-018-230-01, XP14-018-230-08, XP14-018-230-03, XP14-018-230-07, XP14-018-230-09 Nstallation And Service Instructions
...
INSTALLATION AND SERVICE
PROCEDURE
Service Literature
XP14 (HFC-410A) SERIES UNITS
Revised April 7, 2017
WARNING
Improper installation, adjustment, alteration, 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
As with any mechanical equipment, contact with sharp
sheet metal edges can result in personal injury. Take
care while handling this equipment and wear gloves and
protective clothing.
XP14
Corp. 0721-L7
TABLE OF CONTENTS
Model Number Identification 2....................
Typical Serial Number Identification 2..............
Specifications 2.................................
Electrical Data 4................................
Unit Dimensions 7...............................
Unit Parts Arrangement 8........................
Operating Gauge Set and Service Valves 10.........
Recovering Refrigerant from System 12.............
Unit Placement 13................................
Removing and Installing Panels 15.................
New or Replacement Line Set 17...................
Brazing Connections 19...........................
Flushing Line Set and Indoor Coil 22................
Installing Indoor Metering Device 23................
Leak Test Line Set and Indoor Coil 24...............
Evacuating Line Set and Indoor Coil 25.............
Electrical 26.....................................
Servicing Units Void of Charge 27..................
Unit Start-Up 27.................................
System Refrigerant 27............................
System Operation (XP14-XXX-230-01 through 07) 34.
Defrost System (XP14-XXX-230-01 through 07) 36...
System Operation (XP14-XXX-230-08 and later) 34...
Defrost System (XP14-XXX-230-08 and later) 36.....
Maintenance 42..................................
Start-up and Performance Checklist 47.............
Unit Wiring Diagram and Sequence of
Operations 43....................................
The XP14 is a high efficiency residential split-system heat
pump unit, which features a scroll compressor and
HFC-410A refrigerant. XP14 units are available in sizes
ranging from 1-1/2 through 5 tons. The series is designed
for use with an indoor unit with an check expansion valve
approved for HFC-410A.
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 may be
levied for noncompliance.
Page 1
This unit must be matched with an indoor coil as
specified in Lennox XP14 Engineering Handbook.
Coils previously charged with HCFC-22 must be
flushed.
IMPORTANT
Model Number Identification
P 14 XXX− −
X 2
Refrigerant Type
X = HFC-410A
Unit Type
P = Heat Pump Outdoor Unit
Series
Typical Serial Number Identification
Location Code
19 = Saltillo, Mexico
58 = Marshalltown, IA
Year Code
08 = 2008
09 = 2009
10 = 2010
19 09 C
Specifications
−0
230
Voltage
230 = 208/230V-1ph-60hz
Nominal Cooling Capacity
018 = 1.5 tons
024 = 2 tons
030 = 2.5 tons
036 = 3 tons
042 = 3.5 tons
048 = 4 tons
060 = 5 tons
05716
Month Code
A = January
B = February
C = March
Minor Revision Number
5 (or 6) Digit Unique Number
Unit Outdoor Fan
Model Number
XP14-018-230-01, -03, -06, -07 71 8 lbs. 4 oz. 3 18
XP14-018-230-08 71 6 lbs. 11 oz. 3 18
XP14-018-230-09 71
1
Tested according to AHRI Standard 270-2008 test conditions.
2
Refrigerant charge sufficient for 15 feet of line set.
3
Later models employed a smaller filter drier resulting in less refrigerant charge required. Verify factory charge from unit nameplate.
Model Number
XP14-024-230-01, -03, -06, -07 71 8 lbs. 0 oz. 3 18
XP14-024-230-08 71 6 lbs. 4 oz. 3 18
XP14-024-230-09 71
1
Tested according to AHRI Standard 270-2008 test conditions.
2
Refrigerant charge sufficient for 15 feet of line set.
3
Later models employed a smaller filter drier resulting in less refrigerant charge required. Verify factory charge from unit nameplate.
Model Number
XP14-030-230-01 through -07 71 7 lbs. 2 oz. 3 18
XP14-030-230-08 71 6 lbs. 0 oz. 3 18
XP14-030-230-09 71
1
Tested according to AHRI Standard 270-2008 test conditions.
2
Refrigerant charge sufficient for 15 feet of line set.
3
Later models employed a smaller filter drier resulting in less refrigerant charge required. Verify factory charge from unit nameplate.
Sound Rating Number
Sound Rating Number
Sound Rating Number
(dB)
(dB)
(dB)
1
1
1
Factory Refrigerant
6 lbs. 11 oz. or
5 lbs. 11 oz.
Unit Outdoor Fan
Factory Refrigerant
6 lbs. 4 oz. or
5 lbs. 14 oz.
Unit Outdoor Fan
Factory Refrigerant
6 lbs. 0 oz. or
5 lbs. 10 oz.
Charge
Charge
Charge
2
3
2
3
2
3
Number of Blades Diameter - inches.
3 18
Number of Blades Diameter - inches.
3 18
Number of Blades Diameter - inches.
3 18
Page 2
Unit Outdoor Fan
Model Number
Sound Rating Number
(dB)
1
Factory Refrigerant
Charge
2
Number of Blades Diameter - inches.
XP14-036-230-01, -02, -08, -09 71 9 lbs. 12 oz. 3 22
XP14-036-230-10 71
1
Tested according to AHRI Standard 270-2008 test conditions.
2
Refrigerant charge sufficient for 15 feet of line set.
3
Later models employed a smaller filter drier resulting in less refrigerant charge required. Verify factory charge from unit nameplate.
9 lbs. 12 oz. or
9 lbs. 6 oz.
3
3 22
Unit Outdoor Fan
Model Number
Sound Rating Number
(dB)
1
Factory Refrigerant
Charge
2
Number of Blades Diameter - inches.
XP14-042-230-01, -02 71 12 lbs. 7 oz. 4 26
XP14-042-230-08 71 11 lbs. 14 oz. 3 26
XP14-042-230-09 71
1
Tested according to AHRI Standard 270-2008 test conditions.
2
Refrigerant charge sufficient for 15 feet of line set.
3
Later models employed a smaller filter drier resulting in less refrigerant charge required. Verify factory charge from unit nameplate.
11 lbs. 14 oz. or
11 lbs. 8 oz.
3
3 26
Unit Outdoor Fan
Model Number
Sound Rating Number
(dB)
1
Factory Refrigerant
Charge
2
Number of Blades Diameter - inches.
XP14-048-230-01 73 12 lbs. 10 oz. 4 26
XP14-048-230-08 73 10 lbs. 7 oz. 3 26
XP14-048-230-09 73
1
Tested according to AHRI Standard 270-2008 test conditions.
2
Refrigerant charge sufficient for 15 feet of line set.
3
Later models employed a smaller filter drier resulting in less refrigerant charge required. Verify factory charge from unit nameplate.
10 lbs. 7 oz. or
10 lbs. 1 oz.
3
3 26
Unit Outdoor Fan
Model Number
Sound Rating Number
(dB)
1
Factory Refrigerant
Charge
2
Number of Blades Diameter - inches.
XP14-060-230-01 73 16 lbs. 0 oz. 4 26
XP14-060-230-08 73 12 lbs. 11 oz. 3 26
XP14-060-230-09 73
1
Tested according to AHRI Standard 270-2008 test conditions.
2
Refrigerant charge sufficient for 15 feet of line set.
3
Later models employed a smaller filter drier resulting in less refrigerant charge required. Verify factory charge from unit nameplate.
12 lbs. 11 oz. or
12 lbs. 5 oz.
3
3 26
Page 3
XP14 SERIES
Electrical Data
208/230V-60 Hz-1 Ph
Unit Compressor Condenser Fan
Maximum
Model Number Label Rev.
XP14-018-230-01
XP14-018-230-02 1.0 20 11.9 8.97 48.0 1/10 1075 0.7 1.4
XP14-018-230-03 1.0 20 11.9 8.97 48.0 1/10 1075 0.7 1.4
XP14-018-230-06 1.0 20 11.9 8.97 48.0 1/10 1075 0.7 1.4
XP14-018-230-07
XP14-018-230-08
XP14-018-230-09
Model Number Label Rev.
XP14-024-230-01 1.0 & 2.0 30 17.5 13.46 58.0 1/10 1075 0.7 1.4
XP14-024-230-02 1.0 30 17.5 13.46 58.0 1/10 1075 0.7 1.4
XP14-024-230-03 1.0 30 17.5 13.46 58.0 1/10 1075 0.7 1.4
XP14-024-230-06 1.0 30 17.5 13.46 58.0 1/10 1075 0.7 1.4
XP14-024-230-07
XP14-024-230-08
XP14-024-230-09
1.0, 2.0 &
3.0
1.0 20 11.9 8.97 48.0 1/10 1075 0.7 1.4
2.0 20 12.3 9.00 48.0 1/10 1075 0.7 1.4
3.0 20 12.2 9.00 48.0 1/10 1075 0.7 1.4
1.0 20 11.9 8.97 48.0 1/10 1075 0.7 1.87
2.0 20 12.3 8.96 48.0 1/6 825 1.1 1.87
3.0 20 12.3 8.96 48.0 1/6 825 1.1 1.87
1.0 20 12.3 8.96 48.0 1/6 825 1.1 1.87
2.0 20 12.3 9.00 48.0 1/6 825 1.1 1.87
3.0 20 12.2 9.00 48.0 1/6 825 1.0 1.87
1.0 30 17.5 13.46 58.0 1/10 1075 0.7 1.4
2.0 30 17.9 13.50 58.0 1/10 1075 0.7 1.4
3.0 30 17.8 13.50 58.0 1/10 1075 0.7 1.4
1.0 30 17.5 13.46 58.0 1/10 1075 0.7 1.4
2.0, 3.0 &
4.0
1.0 & 2.0 30 17.9 13.44 58.0 1/6 825 1.1 1.87
3.0 30 17.9 13.50 58.0 1/6 825 1.1 1.87
Over-
current
Protection
(amps)
20 11.9 8.97 48.0 1/10 1075 0.7 1.4
Maximum
Over-
current
Protection
(amps)
30 17.9 13.44 58.0 1/6 825 1.1 1.87
Minimum
Circuity
Ampacity
1
Unit Compressor Condenser Fan
Minimum
Circuity
Ampacity
1
Rated
Load
Amps
2
(RLA)
208/230V-60 Hz-1 Ph
Rated
Load
Amps
2
(RLA)
Locked
Rotor
Amps
(LRA)
Locked
Rotor
Amps
(LRA)
Motor HP
Motor HP
Nominal
RPM
Nominal
RPM
Full Load
Amps
(FLA)
Full Load
Amps
(FLA)
Locked
Rotor
Amps
(LRA)
Locked
Rotor
Amps
(LRA)
Page 4
208/230V-60 Hz-1 Ph
Unit Compressor Condenser Fan
Model Number Label Rev.
XP14-030-230-01
1.0, 2.0 &
3.0
Maximum
Over-
current
Protection
(amps)
1
Minimum
Circuity
Ampacity
30 17.0 13.1 64.0 1/10 1075 0.7 1.4
Rated
Load
Amps
2
(RLA)
Locked
Rotor
Amps
(LRA)
Motor HP
Nominal
RPM
Full Load
Amps
(FLA)
Locked
Rotor
Amps
(LRA)
XP14-030-230-02 1.0 30 17.0 13.1 64.0 1/10 1075 0.7 1.4
XP14-030-230-03 1.0 30 17.0 13.1 64.0 1/10 1075 0.7 1.4
XP14-030-230-05
1.0 30 17.0 13.1 64.0 1/10 1075 0.7 1.4
2.0 30 19.4 14.1 64.0 1/10 1075 0.7 1.4
XP14-030-230-06 1.0 30 17.0 13.1 64.0 1/10 1075 0.7 1.4
1.0 30 17.0 13.1 64.0 1/10 1075 0.7 1.4
XP14-030-230-07
2.0 30 17.5 13.1 64.0 1/10 1075 0.7 1.4
3.0 30 17.4 13.1 64.0 1/10 1075 0.7 1.4
XP14-030-230-08
1.0 30 17.0 13.1 64.0 1/10 1075 0.7 1.4
2.0 & 3.0 25 17.1 12.8 64.0 1/6 825 1.1 1.87
1.0 25 17.1 12.8 64.0 1/6 825 1.1 1.87
XP14-030-230-09
2.0 30 17.5 13.1 64.0 1/6 825 1.1 1.87
3.0 30 17.4 13.1 64.0 1/6 825 1.1 1.87
208/230V-60 Hz-1 Ph
Unit Compressor Condenser Fan
Model Number Label Rev.
XP14-036-230-01
1.0, 2.0 &
3.0
Maximum
Over-
current
Protection
(amps)
1
Minimum
Circuity
Ampacity
30 19.4 14.1 77.0 1/3 825 1.8 2.9
Rated
Load
Amps
2
(RLA)
Locked
Rotor
Amps
(LRA)
Motor HP
Nominal
RPM
Full Load
Amps
(FLA)
Locked
Rotor
Amps
(LRA)
XP14-036-230-02 1.0 30 19.4 14.1 77.0 1/3 825 1.8 2.9
XP14-036-230-08
1.0 30 19.4 14.1 77.0 1/3 825 1.8 2.9
2.0 30 18.7 14.08 77.0 1/6 825 1.1 1.87
XP14-036-230-09 1.0 30 18.7 14.08 77.0 1/6 825 1.1 1.87
XP14-036-230-10 1.0 & 2.0 30 18.7 14.08 77.0 1/6 825 1.1 1.87
208/230V-60 Hz-1 Ph
Unit Compressor Condenser Fan
Model Number Label Rev.
XP14-042-230-01
1.0 40 23.9 17.69 107.0 1/3 825 1.8 2.9
2.0 & 3.0 40 24.2 17.94 112.0 1/3 825 1.8 2.9
Maximum
Over-
current
Protection
(amps)
1
Minimum
Circuity
Ampacity
Rated
Load
Amps
2
(RLA)
Locked
Rotor
Amps
(LRA)
Motor HP
Nominal
RPM
Full Load
Amps
(FLA)
Locked
Rotor
Amps
(LRA)
XP14-042-230-02 1.0 40 24.2 17.94 112.0 1/3 825 1.8 2.9
1.0 40 24.2 17.94 112.0 1/3 825 1.8 2.9
XP14-042-230-08
XP14-042-230-09
2.0, 3.0 &
4.0
40 24.2 17.92 112.0 1/3 825 1.8 2.9
1.0 40 24.2 17.92 112.0 1/3 825 1.8 2.9
2.0 40 24.2 18.0 112.0 1/3 825 1.8 2.9
Page 5
XP14 SERIES
208/230V-60 Hz-1 Ph
Unit Compressor Condenser Fan
Model Number Label Rev.
XP14-048-230-01
1.0, 2.0 &
3.0
Maximum
Over-
current
Protection
(amps)
1
Minimum
Circuity
Ampacity
50 29.0 21.79 117.0 1/3 825 1.8 2.1
Rated
Load
Amps
2
(RLA)
Locked
Rotor
Amps
(LRA)
Motor HP
Nominal
RPM
Full Load
Amps
(FLA)
Locked
Rotor
Amps
(LRA)
XP14-048-230-02 1.0 50 29.0 21.79 117.0 1/3 825 1.8 2.1
XP14-048-230-08 1.0 50 29.0 21.76 117.0 1/3 825 1.8 2.1
XP14-048-230-09
1.0 50 29.0 21.79 117.0 1/3 825 1.8 2.1
2.0 & 3.0 50 29.0 21.76 117.0 1/3 825 1.8 2.1
208/230V-60 Hz-1 Ph
Unit Compressor Condenser Fan
Model Number Label Rev.
Maximum
Over-
current
Protection
(amps)
1
Minimum
Circuity
Ampacity
Rated
Load
Amps
2
(RLA)
Locked
Rotor
Amps
(LRA)
Motor HP
Nominal
RPM
Full Load
Amps
(FLA)
Locked
Rotor
Amps
(LRA)
XP14-060-230-01 1.0 & 2.0 60 34.8 26.41 134.0 1/3 825 1.8 2.1
XP14-060-230-03 1.0 60 34.8 26.41 134.0 1/3 825 1.8 2.1
1.0 60 34.8 26.41 134.0 1/3 825 1.8 2.1
XP14-060-230-08
2.0, 3.0 &
4.0
50 29.4 22.10 125.0 1/3 825 1.8 2.1
XP14-060-230-09 1.0 60 29.4 26.41 125.0 1/3 825 1.8 2.1
1
HACR type circuit breaker or fuse.
2
Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements.
Page 6
Unit Dimensions - Inches (mm)
A
LIQUID LINE
CONNECTION
ELECTRICAL INLETS
SUCTION LINE
CONNECTION
C
4-3/4”
(121)
B
TOP VIEW
SIDE VIEW
4-1/2”
(108)
Table 1. XP14-XXX-230-01 through 07
Model Number
XP14-018-230 31 (787)
XP14-024-230 31 (787)
XP14-030-230 35 (889)
XP14-036-230 31 (787)
XP14-042-230 39 (991)
XP14-048-230 39 (991)
XP14-060-230 45 (1143)
A B C
27 (686) 28 (711)
35-1/2 (902) 39-1/2 (1003)
Table 2. XP14-XXX-230-08 / -09
Model Number A B C
XP14-018-230 39 (991)
XP14-024-230 39 (991)
XP14-030-230 39 (991)
XP14-036-230 35 (889)
XP14-042-230 39 (991)
XP14-048-230 39 (991)
XP14-060-230 45 (1143)
30-1/2 (775) 35 (889)
35-1/2 (902) 39-1/2 (1003)
UNIT SUPPORT FEET
13-7/8
(352)
7-3/4
(197)
3-1/4
(83)
27-1/8
(689)
XP14-018 AND -036 BASE WITH
ELONGATED LEGS (MEDIUM)
UNIT SUPPORT FEET
20-5/8
K
(524)
4-1/2
J
(114)
3-5/8
(92)
Page 7
16-7/8
(429)
8-3/4
(222)
3-1/8
(79)
30-3/4
(781)
XP14-042 TO -060 BASE WITH
ELONGATED LEGS (LARGE)
26-7/8
(683)
3-3/4
(95)
4-5/8
(117)
XP14 SERIES
Typical Unit Parts Arrangement
CONTROL PANEL
CONTACTOR-1POLE
GROUND LUG
CONTROL (A108)
(K1-1)
DEFROST
CAPACITOR
(C12)
AMBIENT
SENSOR (RT13)
COMPRESSOR HARNESS
THERMOSTAT (S40) (-036,
-042, -048 AND 060 UNITS
CONNECTION
MUFFLER
CRANKCASE HEATER
ONLY)
REVERSING VALVE
REVERSING VALVE
SOLENOID
LOW PRESSURE
SWITCH (S87)
5-TON UNIT
EXAMPLED HERE
CHECK EXPANSION VALVE
SENSING BULB
COMPRESSOR
(B1)
COIL TEMPERATURE
SENSOR (RT21) - 6TH
HAIRPIN UP ON INSIDE ROW.
CHECK EXPANSION
VALV E
LIQUID LINE FILTER DRIER (BI-FLOW)
CRANKCASE HEATER (-036, -042, -048
AND -060 UNITS ONLY)
HIGH PRESSURE SWITCH
(AUTO-RESET) (S4)
TRUE SUCTION PORT
VAPOR LINE SERVICE
VALV E
FIELD CONNECTION
FOR VAPOR LINE
LIQUID LINE SERVICE
PLUMBING, SWITCHES AND SENSOR COMPONENTS
Figure 1. Typical Parts Arrangements (XP14-XXX-230-01 through 07)
VALV E
FIELD CONNECTION
FOR LIQUID LINE SET
Page 8
CONTROL PANEL
CAPACITOR (C12)
CONTACTOR-
1POLE (K1-1)
GROUND
LUG
TRUE SUCTION
PORT
REVERSING
VALV E
MUFFLER
5-TON UNIT
EXAMPLED HERE
DEFROST CONTROL
(CMC1)
ONLY ON UNITS
USING EXTERNAL
COMPRESSOR
THERMAL
PROTECTION
SWITCH (S173)
SWITCH
COVER
SWITCH
DEFROST
THERMOSTAT (S6)
CHECK EXPANSION
VALV E
REVERSING VALVE
SOLENOID
CRANKCASE HEATER
(-036, -042, -048 AND
060 UNITS ONLY)
LOW PRESSURE
SWITCH (S87)
LIQUID LINE FILTER
DRIER (BI-FLOW)
CHECK EXPANSION VALVE
SENSING BULB
CRANKCASE HEATER THERMOSTAT (S40)
(-036, -042, -048 AND 060 UNITS ONLY)
HIGH PRESSURE SWITCH
(AUTO-RESET) (S4)
VAPOR LINE SERVICE
LIQUID LINE
SERVICE VALVE
FIELD CONNECTION FOR VAPOR
LINE (ANGLE-TYPE - ALL SIZES
EXCEPT -060)
FIELD CONNECTION
FOR LIQUID LINE SET
PLUMBING, SWITCHES AND
VALV E
FIELD CONNECTION
FOR VAPOR LINE
(BALL-TYPE -060 ONLY)
SENSOR COMPONENTS
Figure 2. Typical Parts Arrangements (XP14-XXX-230-08)
Page 9
XP14 SERIES
WARNING
The State of California has determined that this product
may contain or produce a chemical or chemicals, in very
low doses, which may cause serious illness or death. It
may also cause cancer, birth defects, or reproductive
harm.
WARNING
Electric Shock Hazard. Can cause injury
or death. Unit must be grounded in
accordance with national and local
codes.
Line voltage is present at all components
when unit is not in operation on units with
single‐pole contactors. Disconnect all
remote electric power supplies before
opening access panel. Unit may have
multiple power supplies.
Operating Gauge Set and Service Valves
These instructions are intended as a general guide and do
not supersede local codes in any way. Consult authorities
who have jurisdiction before installation.
TORQUE REQUIREMENTS
When servicing or repairing heating, ventilating, and air
conditioning components, ensure the fasteners are
appropriately tightened. Table 3 lists torque values for
fasteners.
IMPORTANT
Only use Allen wrenches of sufficient hardness (50Rc Rockwell Harness Scale minimum). Fully insert the
wrench into the valve stem recess.
Service valve stems are factory-torqued (from 9 ft-lbs for
small valves, to 25 ft-lbs for large valves) to prevent
refrigerant 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 Notes #C-08-1
for further details and information.
IMPORTANT
To prevent stripping of the various caps used, the
appropriately sized wrench should be used and fitted
snugly over the cap before tightening.
Table 3. Torque Requirements
Parts Recommended Torque
Service valve cap 8 ft.- lb. 11 NM
Sheet metal screws 16 in.- lb. 2 NM
Machine screws #10 28 in.- lb. 3 NM
Compressor bolts 90 in.- lb. 10 NM
Gauge port seal cap 8 ft.- lb. 11 NM
USING MANIFOLD GAUGE SET
When checking the system charge, only use a manifold
gauge set that features low loss anti-blow back fittings.
Manifold gauge set used with HFC-410A refrigerant
systems must be capable of handling the higher system
operating pressures. The gauges should be rated for use
with pressures of 0 - 800 psig on the high side and a low
side of 30” vacuum to 250 psig with dampened speed to
500 psi. Gauge hoses must be rated for use at up to 800
psig of pressure with a 4000 psig burst rating.
OPERATING SERVICE VALVES
The liquid and vapor line service valves are used for
removing refrigerant, flushing, leak testing, evacuating,
checking charge and charging.
Each valve is equipped with a service port which has a
factory-installed valve stem. Figure 3 provides information
on how to access and operating both angle and ball service
valves.
Page 10
SERVICE VALVES
ANGLE AND BALL
Operating Angle Type Service Valve:
1. Remove stem cap with an appropriately sized wrench.
2. Use a service wrench with a hex-head extension (3/16” for liquid line valve sizes and 5/16” for vapor line valve sizes) to back
the stem out counterclockwise as far as it will go.
SERVICE PORT CAP
SERVICE PORT CORE
(VALVE STEM SHOWN
TO INDOOR
UNIT
(VALVE STEM SHOWN OPEN)
INSERT HEX WRENCH HERE
CLOSED) INSERT HEX
WRENCH HERE
SERVICE PORT
CORE
TO OUTDOOR UNIT
ANGLE-TYPE SERVICE VALVE
(BACK-SEATED OPENED)
When service valve is OPEN, the service port is
open to the line set, indoor and outdoor unit.
Operating Ball Type Service Valve:
1. Remove stem cap with an appropriately sized wrench.
2. Use an appropriately sized wrench to open. To open valve, rotate
stem counterclockwise 90°. To close rotate stem clockwise 90°.
TO INDOOR UNIT
TO OPEN ROTATE STEM
COUNTERCLOCKWISE 90°.
TO CLOSE ROTATE STEM
CLOCKWISE 90°.
SERVICE PORT
SERVICE PORT
SERVICE PORT
CORE
CAP
TO OUTDOOR
UNIT
BALL (SHOWN
CLOSED)
VALV E
STEM
STEM CAP
STEM CAP
ANGLE-TYPE SERVICE VALVE
(FRONT-SEATED CLOSED)
When service valve is CLOSED, the service port is
open to the line set and indoor unit.
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.
2. Connect gauge set to service port.
3. When testing is completed, replace service port cap and tighten as
follows:
With torque wrench: Finger tighten and
torque cap per table 3.
Without torque wrench: Finger tighten and
use an appropriately sized wrench to turn
an additional 1/6 turn clockwise.
Reinstall Stem Cap:
Stem cap protects the valve stem from damage and serves as the
primary seal. Replace the stem cap and tighten as follows:
9
10
8
11
12
7
6
With torque wrench: Finger tighten and
then torque cap per table 3.
Without torque wrench: Finger tighten
and use an appropriately sized
wrench to turn an additional 1/12 turn
clockwise.
9
10
8
11
12
7
6
1/6 TURN
1
2
3
4
5
1/12 TURN
1
2
3
4
5
NOTE — A label with specific torque requirements may be affixed to the stem cap. If the label is present, use the specified torque.
Figure 3. Angle and Ball Service Valves
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XP14 SERIES
Recovering Refrigerant from System
DISCONNECT POWER
Disconnect all power to the existing outdoor unit at the disconnect
12
switch or main fuse box/breaker panel.
MAIN FUSE BOX/BREAKER PANEL
MAIN FUSE
BOX/BREAKER
PANEL
DISCONNECT
SWITCH
RECOVERING REFRIGERANT
Remove existing HCFC-22 refrigerant using one of the following procedures:
3
IMPORTANT — Some system configurations may contain higher than normal refrigerant charge due to either large internal coil volumes,
and/or long line sets.
CONNECT MANIFOLD GAUGE SET
Connect a gauge set, clean recovery cylinder and a recovery
machine to the service ports of the existing unit. Use the
instructions provided with the recovery machine to make the
connections.
MANIFOLD GAUGES
RECOVERY MACHINE
LOW
CLEAN RECOVERY
CYLINDER
OUTDOOR UNIT
HIGH
METHOD 1:
Us this method if the existing outdoor unit is not equipped with shut-off valves, or if the unit is not operational and you plan to use the existing
HCFC-22 to flush the system.
Remove all HCFC-22 refrigerant from the existing system. Check gauges after shutdown to confirm that the entire system is completely void of
refrigerant.
METHOD 2:
Use this method if the existing outdoor unit is equipped with manual shut-off valves, and you plan to use new HCFC-22 refrigerant to flush the
system.
The following devices could prevent full system charge recovery into the outdoor unit:
Outdoor unit's high or low-pressure switches (if applicable) when tripped can cycle the compressor OFF.
Compressor can stop pumping due to tripped internal pressure relief valve.
Compressor has internal vacuum protection that is designed to unload the scrolls (compressor stops pumping) when the pressure 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 pressures will result in overheating of the scrolls and permanent damage to the scroll tips, drive bearings and
internal seals.)
Once the compressor can not pump down to a lower pressure due to one of the above system conditions, shut off the vapor valve. Turn OFF the
main power to unit and use a recovery machine to recover any refrigerant left in the indoor coil and line set.
Perform the following task:
A Start the existing HCFC-22 system in the cooling mode and close the liquid line valve.
B Use the compressor to pump as much of the existing HCFC-22 refrigerant into the outdoor unit until the outdoor system is full. Turn the outdoor unit
main power OFF and use a recovery machine to remove the remaining refrigerant from the system.
NOTE — It may be necessary to bypass the low pressure switches (if equipped) to ensure complete refrigerant evacuation.
C When the low side system pressures reach 0 psig, close the vapor line valve.
D Check gauges after shutdown to confirm that the valves are not allowing refrigerant to flow back into the low side of the system.
Figure 4. Refrigerant Recovery
Page 12
See NOTES
NOTES:
Service clearance of 30 in. 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.
See
NOTES
See NOTES
See
NOTES
Control
Box
Clearance to one of the remaining two sides may be 12 in. and the
final side may be 6 in.
A clearance of 24 in. must be maintained
between two units.
48 in. clearance required on top of unit.
NOTICE: Specific applications may require adjustment of the listed installation clearances to provide protection for
the unit from physical damage or to avoid conditions which limit operating efficiency. (Example: Clearances may
have to be increased to prevent snow or ice from falling on the top of the unit. Additional clearances may also be
required to prevent air recirculation when the unit is installed under a deck or in another tight space.)
Figure 5. Installation Clearances
PLACING UNIT ON SLAB
Unit Placement
When installing unit at grade level, the top of the slab
should be high enough above grade so that water from
higher ground will not collect around the unit. The slab
CAUTION
In order to avoid injury, take proper precaution when
lifting heavy objects.
should have a slope tolerance as described in figure 6,
detail B.
NOTE — If necessary for stability, anchor unit to slab as
described in figure 6, detail D.
See Unit Dimensions on page 3 for sizing mounting slab,
platforms or supports. Refer to figure 5 for mandatory
installation clearance requirements.
POSITIONING CONSIDERATIONS
Consider the following when positioning the unit:
Some localities are adopting sound ordinances based
on the unit's sound level registered from the adjacent
property, not from the installation property. Install the
unit as far as possible from the property line.
When possible, do not install the unit directly outside
a window. Glass has a very high level of sound
transmission. For proper placement of unit in relation
to a window see the provided illustration in figure 6,
detail A.
ELEVATING THE UNIT
Units are outfitted with elongated support feet as illustrated
in figure 6, detail C.
If additional elevation is necessary, raise the unit by
extending the height of the unit support feet. This may be
achieved by using a 2 inch (50.8mm) Schedule 40 female
threaded adapter.
The specified coupling will fit snuggly into the recessed
portion of the feet. Use additional 2 inch (50.8mm)
Schedule 40 male threaded adaptors which can be
threaded into the female threaded adaptors to make
additional adjustments to the level of the unit.
NOTE — Keep the height of extenders short enough to
ensure a sturdy installation. If it is necessary to extend
further, consider a different type of field-fabricated
framework that is sturdy enough for greater heights.
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XP14 SERIES
DETAIL A
Install unit away from windows.
— Outside Unit Placement
DETAIL B
Install unit level or, if on a slope, maintain slope tolerance of two (2)
degrees (or two inches per five feet [50 mm per 1.5 m]) away from
building structure.
— Slab Mounting at Ground Level
BUILDING
STRUCTURE
MOUNTING
SLAB
TWO 90° ELBOWS INSTALLED IN LINE SET WILL
REDUCE LINE SET VIBRATION.
DETAIL C
— Elevated Slab Mounting
using Feet Extenders
LEG DETAIL
2” (50.8MM) SCH 40
FEMALE THREADED
ADAPTER
BASE
GROUND LEVEL
STABILIZING UNIT ON UNEVEN SURFACES
DETAIL D
#10 1/2” LONG SELF-DRILLING
SHEET METAL SCREWS
STABILIZING BRACKET (18 GAUGE
METAL — 2” WIDTH; HEIGHT AS
#10 1-1/4” LONG HEX HD SCREW
Concrete slab — use two plastic anchors (hole
drill 1/4”)
Wood or plastic slab — no plastic anchor (hole
drill 1/8”)
DETAIL E
Stabilizing bracket (18 gauge metal — 2” (50.8mm) width; height as required); bend to form
right angle as exampled below.
— Slab Side Mounting
REQUIRED)
AND FLAT WASHER
— Deck Top Mounting
MINIMUM ONE
PER SIDE
COIL
BASE PAN
CORNER POST
2” (50.8MM) SCH 40
MALE THREADED
ADAPTER
Use additional 2” SCH 40 male threaded adapters
which can be threaded into the female threaded
adapters to make additional adjustments to the level of
the unit.
IMPORTANT — To help stabilize an outdoor unit, some installations may require strapping the unit to the pad using brackets and anchors
commonly available in the marketplace.
Figure 6. Placement, Slab Mounting and Stabilizing Unit
SAME FASTENERS AS
SLAB SIDE MOUNTING.
One bracket per side (minimum). For extra stability, two brackets per side, two inches
(51mm) from each corner.
FOR EXTRA
STABILITY
Page 14
STABILIZING UNIT ON UNEVEN SURFACES
IMPORTANT
Unit Stabilizer Bracket Use (field-provided):
Always use stabilizers when unit is raised above the
factory height. (Elevated units could become unstable in
gusty wind conditions).
Stabilizers may be used on factory height units when
mounted on unstable an uneven surface.
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.
With unit positioned at installation site, perform the
following:
1. Remove two side louvered panels to expose the unit
base.
2. Install the brackets as illustrated in figure 6, detail D or
E using conventional practices.
3. Replace the panels after installation is complete.
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.
If unit coil cannot be mounted away from prevailing winter
winds, a wind barrier should be constructed. Size barrier at
least the same height and width as outdoor unit. Mount
barrier 24 inches (610 mm) from the sides of the unit in the
direction of prevailing winds.
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.
IMPORTANT
To help stabilize an outdoor unit, some installations may
require strapping the unit to the pad using brackets and
anchors commonly available in the marketplace.
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.
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XP14 SERIES
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