Lennox 2SHP13, 2SHP13-18, 2SHP13-24, 2SHP13-30, 2SHP13-36 Installation And Maintenance Instructions Manual
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INSTALLATION AND MAINTENANCE
INSTRUCTIONS
2SHP13 Series
Split System Heat Pump
WARNING
The equipment covered in this manual is to be installed by trained and experienced
service and installation technicians. Improper installation, modification, service, or
use can cause electrical shock, fire, explosion, or other conditions which may cause
personal injury, death, or property damage. Use appropriate safety gear including
safety glasses and gloves when installing this equipment.
WARNING
Risk of electrical shock. Disconnect all
remote power supplies before installing or
servicing any portion of the system. Failure
to disconnect power supplies can result in
property damage, personal injury, or death.
WARNING
Installation and servicing of air conditioning
equipment can be hazardous due to internal
refrigerant pressure and live electrical components. Only trained and qualified service
personnel should install or service this equipment. Installation and service performed by
unqualified persons can result in property
damage, personal injury, or death.
WARNING
Sharp metal edges can cause injury. When
installing the unit, use care to avoid sharp
edges.
TABLE OF CONTENTS
INSTALLATION ...................................... 2
START-UP............................................. 11
OPERATION ........................................ 15
MAINTENANCE ................................... 17
HOMEOWNER INFORMATION ........... 18
CONNECTION DIAGRAMS ................. 21
WARRANTY......................................... 23
Manufactured By
A.A.C.
A Lennox International Inc. Company
421 Monroe Street
Bellevue, OH 44811
*48306B006*
Save these instructions for future reference
# 48306B006 Page 1
INSTALLATION
Location of Unit
General
Read this entire instruction manual, as well as the
instructions supplied in separate equipment, before
starting the installation. Observe and follow all warnings, cautions, instructional labels, and tags. Failure
to comply with these instructions could result in an
unsafe condition and/or premature component failure.
These instructions are intended as a general guide only for
use by qualified personnel and do not supersede any national
or local codes in any way. The installation must comply with all
provincial, state, and local codes as well as the National
Electrical Code (U.S.) or Canadian Electrical Code (Canada).
Compliance should be determined prior to installation.
When servicing or repairing HVAC components, ensure
the fasteners are appropriately tightened. Table 1 shows
torque values for fasteners.
Torque Table
renetsaF euqroT
spaCmetS.sbl.tf8
spaCtroPecivreS .sbl.tf8
swercSlateMteehS.sbl.ni61
swercSenihcaM8# .sbl.ni61
swercSenihcaM01#.sbl.ni82
Outdoor units operate under a wide range of weather
conditions; therefore, multiple factors must be considered
when positioning the unit. The unit must be positioned to
give adequate clearances for sufficient airflow and servicing. Refer to Figure 1 for installation clearances.
Installation Clearances
36"
36 *"
36 *"
* A service clearance of 30" must be maintained on
one of the sides adjacent to the control box.
Clearance to one of the other three sides must be
36". Clearance to one of the remaining two sides
may be 12" and the final side may be 6".
A clearance of 24" must be maintained between units.
48" clearance required on top of unit. Maximum soffit
overhang is 36".
36"
stloBrosserpmoC .sbl.ni09
Table 1
Inspection of Shipment
Upon receipt of equipment, carefully inspect it for possible
shipping damage. If damage is found, it should be noted
on the carrier’s freight bill. Take special care to examine
the unit inside the carton if the carton is damaged. Any
concealed damage discovered should be reported to the
last carrier immediately, preferably in writing, and should
include a request for inspection by the carrier’s agent.
If any damages are discovered and reported to the carrier
DO NOT INSTALL THE UNIT, as claim may be denied.
Check the unit rating plate to confirm specifications
are as ordered.
Figure 1
• Place a sound-absorbing material, such as Isomode,
under the unit if it will be installed in a location or
position that will transmit sound or vibration to the
living area or adjacent buildings.
• Install the unit high enough above the ground or roof
to allow adequate drainage of defrost water and
prevent ice buildup.
• In heavy snow areas, do not locate the unit where
drifting snow will occur. The unit base should be
elevated above the depth of average snows.
NOTE: Elevation of the unit may be accomplished by
constructing a frame using suitable materials. If a
support frame is constructed, it must not block drain
holes in unit base.
• When installed in areas where low ambient temperatures exist, locate unit so winter prevailing winds do
not blow directly into outdoor coil.
Page 2 # 48306B006
• Locate unit away from overhanging roof lines which would
allow water or ice to drop on, or in font of, coil or into unit.
Slab Mounting
Wind Barrier Construction
Prevailing Winter Winds
When installing a unit at grade level, install on slab high
enough above grade so that water from higher ground will
not collect around the unit (see Figure 2). Slab should have
a slope tolerance away from the building of 2° or 2" per 5'.
This will prevent ice from building up under the unit during a
defrost cycle. Refer to following roof mounting section for
barrier construction if unit must face prevailing winter winds.
Slab Mounting
Discharge Air
Building
Structure
Mounting Slab
Ground Level
2° or 2" per 5' slope tolerance away from building
structure.
Figure 2
Roof Mounting
Install unit at a minimum of 6" above surface of the roof to
avoid ice buildup 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 (see Figure 3).
Size the barrier at least the same height and width as the
outdoor unit. Mount barrier 24" from the sides of the unit in
the direction of the prevailing winds.
Electrical Wiring
Wind Barrier
Inlet Air
Inlet Air
24"
Inlet Air
Figure 3
WARNING
Unit must be grounded in accordance with
national and local codes. Failure to ground unit
properly can result in personal injury or death.
WARNING
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.
Failure to disconnect all power supplies could
result in personal injury or death.
Refer to the furnace or blower coil Installation Instructions
for additional wiring application diagrams and refer to unit
rating plate for minimum circuit ampacity and maximum
overcurrent protection size.
1. Install line voltage power supply to unit from a properly
sized disconnect switch. Any excess high voltage field
wiring should be trimmed or secured away from the
low voltage field wiring.
All field wiring must be done in accordance with the
National Electrical Code (NEC) recommendations,
Canadian Electrical Code (CEC) and CSA Standards, or
local codes, where applicable.
# 48306B006 Page 3
2. Ground unit at unit disconnect switch or to an earth
ground. To facilitate conduit, a hole is in the bottom of the
control box. Connect conduit to the control box using a
proper conduit fitting. Units are approved for use only with
copper conductors. 24V Class II circuit connections are
made in the low voltage junction box. A complete unit
wiring diagram is located inside the unit control box cover
(see also pages 20 and 21 of this instruction).
3. Install room thermostat on an inside wall that is not
subject to drafts, direct sunshine, or other heat sources.
4. Install low voltage wiring from outdoor to indoor unit
and from thermostat to indoor unit (see Figure 4).
Refrigerant Piping
Field refrigerant piping consists of liquid and suction lines
from the outdoor unit (sweat connections) to the indoor
coil (flare or sweat connections).
5. Do not bundle any excess 24V control wire inside control
box. Run control wire through installed wire tie and tighten
wire tie to provide low voltage strain relief and to maintain
separation of field-installed low and high voltage circuits.
Thermostat Designations
(Some connections may not apply.
Refer to specific thermostat and indoor unit.)
Without Auxiliary Heat
Select line set diameters from Table 2 to ensure that oil
returns to the compressor. Size vertical suction riser to
maintain minimum velocity at minimum capacity. Recommended line length is 50' or less. If more than 50' line set is
required, contact Technical Services at (419) 483-4840.
Table 2 shows the diameters for line sets up to 100' although
vertical lift applications and trapping requirements need to be
reviewed with Technical Services for line sets over 50'.
Refrigerant Line Set Diameters (in.)
eniLdiuqiL
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HUTB
.tf21 .tf52 .tf05 .tf57 .tf001
000,818/38/38/38/38/3
000,42 8/3 8/3 8/3 8/3 8/3
000,038/38/38/38/32/1
000,63 8/3 8/3 8/3 8/3 2/1
000,248/38/38/32/12/1
With Auxiliary Heat
Do not connect C (common) connection between
indoor unit and thermostat except when required by
the indoor thermostat. Refer to thermostat installation
instructions. C (common) connection between indoor
unit and outdoor unit required for proper operation.
000,84 8/3 8/3 8/3 2/1 2/1
000,068/38/38/32/12/1
eniLnoitcuS
eziSdnahtgneLteSeniL
HUTB
.tf21 .tf52 .tf05 .tf57 .tf001
000,814/34/34/34/34/3
000,42 4/3 4/3 4/3 4/3 8/7
000,034/34/34/38/78/7
000,63 8/7 8/7 8/7 8/7 8/1-1
000,248/78/78/78/1-18/1-1
000,84 8/7 8/7 8/7 8/1-1 8/1-1
000,068/1-18/1-18/1-18/1-18/1-1
For installations exceeding 50', contact
Technical Services at (419) 483-4840.
Table 2
Figure 4
Page 4 # 48306B006
Installing Refrigerant Line
Brazing Connection Procedure
During the installation of an air conditioning system, it is
important to properly isolate the refrigerant line to prevent
unnecessary vibration. Line set contact with the structure
(wall, ceiling, or floor) may cause objectionable noise
when vibration is translated into sound. As a result, more
energy or vibration can be expected. Close attention to
line set isolation must be observed.
Following are some points to consider when placing and
installing a high-efficiency outdoor unit:
Placement
Be aware that some localities are adopting sound ordinances based on how noisy the unit is at the neighbor’s
home, not at the original installation. Install the unit as far as
possible from the property line. When possible, do not
install the unit directly outside a bedroom window. Glass
has a very high level of sound transmission. Figure 5
shows how to place the outdoor unit and line set to reduce
line set vibration.
Outside Unit Placement
and Installation
Install unit away
from windows
1. Cut ends of refrigerant lines square (free from nicks
or dents). Debur the ends. The pipe must remain
round; do not pinch end of line.
2. Before making line set connections, use dry nitrogen to
purge the refrigerant piping. This will help to prevent
oxidation and the introduction of moisture into the system.
3. Use silver alloy brazing rods (5% or 6% silver alloy for
copper-to-copper brazing or 45% silver alloy for
copper-to-brass or copper-to-steel brazing) which are
rated for use with HCFC-22 refrigerant.
4. Remove the Schrader core assemblies before brazing
to protect them from damage due to extreme heat.
Replace the cores when brazing is complete.
5. Wrap a wet cloth around the valve body and copper tube
stub to protect them from heat damage during brazing.
Wrap another wet cloth underneath the valve body to
protect the base paint.
6. Braze the line set to the service valve. Quench the joints
with water or a wet cloth to prevent heat damage to the
valve core and opening port. The tube end must stay
bottomed in the fitting during final assembly to
ensure proper seating, sealing, and rigidity.
7. Install the factory-supplied fixed orifice (or thermal
expansion valve which is sold separately and which is
approved for use with HCFC-22 refrigerant) in the
liquid line at the indoor coil.
Two 90° elbows installed in lineset
will reduce lineset vibration
Figure 5
Line Set Isolation
Illustrations on the pages 6 and 7 demonstrate procedures
which ensure proper refrigerant line set isolation. Figure 6
shows how to install line sets on horizontal runs. Figure 7
shows how to make a transition from horizontal to vertical.
Figure 8 shows how to install line sets on vertical runs.
Refrigerant Metering Device
2SHP13 units are designed for use with either fixed orifice
or TXV systems. Refer to the appropriate following section
for information on installing the chosen refrigerant metering device.
Fixed Orifice Systems
2SHP13 units are shipped with a fixed orifice refrigerant
metering device. Replace the existing indoor unit fixed
orifice with the orifice supplied with this unit. Place the
supplied fixed orifice sticker on the indoor cabinet after
installation. See Table 3 on page 7 for the proper fixed
orifice size for each unit. In nonstandard applications, the
provided fixed orifice may not be appropriately sized.
Install the fixed orifice as shown in Figure 9 on page 7. Do not
twist cap tubes when loosening the seal nut from the orifice
housing. Use wrench to back up the distributor.
# 48306B006 Page 5
Refrigerant Line Sets: Installing Horizontal Runs
To hang line set from joist or rafter,
use either metal strapping material
or anchored heavy nylon wire ties.
Strapping Material
(around vapor line only)
8’
Floor Joist or
Roof Rafter
Metal Sleeve
Floor Joist or Roof Rafter
Wire Tie
(around vapor line only)
Tape or Wire Tie
8’
Strap the vapor line to the joist or rafter
at 8 intervals then strap the liquid line
’
to the vapor line.
Wall
Stud
Tape or Wire Tie
Figure 6
Refrigerant Line Sets: Transition from Vertical to Horizontal
Anchored
Heavy Nylon
Wire Tie
Strap Liquid
Line to Vapor
Line
Wall
Stud
Automotive
Muffler-Type
Hanger
Strap Liquid
Line to Vapor
Line
Metal Sleeve
Liquid Line
Vapor Line Wrapped
–
in Armaflex
Metal Sleeve
Vapor Line Wrapped
in Armaflex
Liquid Line
–
Figure 7
Page 6 # 48306B006
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.
IMPORTANT:
Refrigerant
lines must not
contact structure.
Wood Block
Between Studs
Vapor Line Wrapped
with Armaflex
Outside Wall
Outside Wall
Liquid Line
Caulk
IMPORTANT: Refrigerant
lines must not contact wall.
Vapor Line
Liquid Line
Wire Tie
Inside Wall
Strap
Sleeve
Wire Tie
Wood Block
Wire Tie
Strap
PVC Pipe
Fixed Orifice Data
ledoM
81-31PHS280-484001750.
42-31PHS2 11-484001 160.
03-31PHS212-484001270.
63-31PHS2 32-484001 470.
24-31PHS233-484001680.
84-31PHS2 53-484001 880.
06-31PHS273-484001090.
traP
rebmuN
Table 3
Fiberglass
Insulation
llirD
eziS
Sleeve
Figure 8
Metering Device Installation
If installing an expansion valve on an indoor coil that
previously used a fixed orifice, remove orifice before
installing valve.
# 48306B006 Page 7
Figure 9
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