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INSTALLATION AND MAINTENANCE INSTRUCTIONS
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.
506255-01
4SHP14LE SERIES
Split System Heat Pump
Save these instructions for future reference
WARNING
TABLE OF CONTENTS
INSTALLATION ...................................... 2
CONNECTION DIAGRAM ..................... 4
START-UP ............................................ 13
OPERATION ........................................ 18
MAINTENANCE ................................... 20
WARRANTY ......................................... 24
Allied Air Enterprises, Inc.
A Lennox International Inc. Company
West Columbia, SC 29170
*506255-01*
Issue 0902
Manufactured By
215 Metropolitan Drive
Page 1 of 25
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Summary of Contents for Lennox 4SHP14LE Series
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Page 1: Table Of Contents
Installation and service performed Manufactured By by unqualified persons can result in property Allied Air Enterprises, Inc. damage, personal injury, or death. A Lennox International Inc. Company 215 Metropolitan Drive West Columbia, SC 29170 WARNING *506255-01* Sharp metal edges can cause injury. When installing the unit, use care to avoid sharp edges. -
Page 2: Installation
INSTALLATION Inspection of Shipment Upon receipt of equipment, carefully inspect it for possible shipping damage. If damage is found, it should be noted on General the carrier’s freight bill. Take special care to examine the Read this entire instruction manual, as well as the unit inside the carton if the carton is damaged. -
Page 3: Slab Mounting
If unit coil cannot be mounted away from prevailing winter • Install the unit high enough above the ground or roof to winds, a wind barrier should be constructed (See Figure 3). allow adequate drainage of defrost water and prevent Size the barrier at least the same height and width as the ice buildup. -
Page 4: Connection Diagram
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. 2. Ground unit at unit disconnect switch or to an earth ground. -
Page 5: Refrigerant Piping
Refrigerant Piping Refrigerant Line Set Diameters (in.) If the 4SHP14LE unit is being installed with a new indoor coil and line set, the refrigerant connections should be made Liquid Line as outlined in this section. If an existing line set and/or indoor coil will be used to complete the system, refer to this section BTUH Line Set Length and Size... - Page 6 6. Braze the line set to the service valve. Quench the joints Outside Unit Placement with water or a wet cloth to prevent heat damage to the and installation valve core and opening port. The tube end must stay bottomed in the fitting during final assembly to ensure proper seating, sealing, and rigidity.
- Page 7 Refrigerant Line Sets: Transition from Vertical to Horizontal Automotive Anchored Muffler-Type Heavy Nylon Hanger Wire Tie Strap Liquid Strap Liquid Line to Vapor Line to Vapor Line Wall Wall Line Stud Stud Liquid Line Liquid Line – Vapor Line Wrapped –...
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Page 8: Flushing Procedure
from the existing system. Refer to the gauges after shutdown Flushing Existing Line Set and Indoor Coil to confirm that the entire system is completely void of refrigerant. Disconnect the liquid and suction lines from the This procedure should not be performed on systems existing outdoor unit. - Page 9 An R410A system will not operate properly with an R-22 4. Remover the existing R-22 refrigerant flow control orifice metering device. or thermal expansion valve before continuing with flushing procedures. R-22 flow control devices are not approved for Install the refrigerant metering device as shown in Figure use with R410A refrigerant and may prevent proper flushing.
- Page 10 3. Connect the external equalizer line to the equalizer port Suction Line (Ball Type) Service Valve on the suction line and tighten to 8 ft.lbs. Suction line (ball type) service valves function the same way as the other valves; the difference is in the construction (See 4.
- Page 11 3. Open the high pressure side of the manifold to allow R410A into the line set and indoor unit. Weigh in a trace amount of R410A. (A trace amount is a maximum of 2 oz. of refrigerant or 3 lbs. pressure.) Close the valve on the R410A cylinder and the valve on the high pressure side of the manifold gauge set.
- Page 12 4. Open both manifold valves and start vacuum pump. 5. Evacuate the line set and indoor unit to a minimum of 500 microns or lower. During the early stages of evacuation, it is desirable to close the manifold gauge valve at least once to determine if there is a rapid rise in pressure.
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Page 13: Start-Up
START-UP Units are factory charged with the amount of R410A refrigerant indicated on the unit rating plate. This charge is based on a matching indoor coil and outdoor coil with 15’ CAUTION line set. For varying lengths of line set, refer to Table 5 for refrigerant charge adjustment. - Page 14 Figure 14 1. Connect the manifold gauge set to the service valve ports 2. Conduct a leak check, then evacuate as previously as follows (See Figure 14above): outlined. • 3. Weigh in the charge according to the total amount shown Low pressure gauge to suction line service valve on the unit nameplate.
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Page 15: R410A Temperature/Pressure Chart
R410A Temperature/Pressure Chart T e m p . P re s s u re T e m p . P re s s u re T e m p . P re s s u re P s ig P s ig P s ig 1 0 0 .8 2 1 4 .0... - Page 16 6. Compare the approach value with those shown in Table 9. If the values do not agree with those provided in Table 8, add refrigerant to lower the approach temperature or recover refrigerant from the system to increase the approach temperature.
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Page 17: Normal Operating Pressures
Normal Operating Pressures Normal Operating Pressures Cooling Outdoor Coil Entering Air Temp. °F Heating Outdoor Coil Entering Air L - Liquid S- Suction Values provided above are typical pressures. Indoor unit matchup, indoor air quality equipment, and indoor load will case pressures to vary. Table 8 Approach Values for TXV Systems Model... -
Page 18: Operation
OPERATION Emergency heat is usually used during an outdoor shutdown, but it should also be used following a power outage if power has been off for over an hour and the outdoor temperature Outdoor unit and indoor blower cycle on demand from the is below 50°F. -
Page 19: Defrost Control Board Diagnostic Leds
Defrost Control Timing Pins locked out until power to the board is interrupted, then re- Each timing pin selection provides a different accumulated established, or until the jumper is applied to the TEST pins compressor run time period during one thermostat run cycle. for 0.5 seconds. -
Page 20: Maintenance
MAINTENANCE WARNING Before performing maintenance operations on system, turn the electric power to unit OFF at disconnect switch(es). Unit may have multiple power supplies. Electrical shock could cause personal injury or death. Before the start of each heating and cooling season, the following service checks should be performed by a qualified service technician. -
Page 21: Homeowner Information
HOMEOWNER INFORMATION to substances which are corrosive or which block airflow across the coil (such as pet urine, cottonwood seeds, etc...). In order to ensure peak performance, your system must be Heat Pump Operation properly maintained. Clogged filters and blocked airflow Heat pump units have several characteristics you should be prevent your unit from operating at its most efficient level. - Page 22 Fan Switch Preservice Check In AUTO or INT (intermittent) mode, the blower operates If your system fails to operate, check the following before only when the thermostat calls for heating or cooling. This calling for service: mode is generally preferred when humidity control is a priority. The ON or CONT mode provides continuous indoor blower Check to see that all electrical disconnect switches ar ON.
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Page 23: Start-Up And Performance Checklist
Start-Up and Performance Checklist Job Name _____________________________ Job No. ____________ Date ___________ Job Location ___________________________ City _______________ State ___________ Installer _______________________________ City _______________ State ___________ Unit Model No. _________________________ Serial No._____________________________ Service Technician _______________________ Nameplate Voltage _____________________ Rated Load Ampacity _________ Compressor Amperage ________ Outdoor Fan __________ Maximum Fuse or Circuit Breaker ________________________... -
Page 24: Warranty
ALLIED AIR ENTERPRISES EQUIPMENT LIMITED WARRANTY APPLIES IN U.S.A. AND CANADA ONLY FAILURE TO MAINTAIN YOUR EQUIPMENT WILL VOID THIS WARRANTY COVERED EQUIPMENT The following Allied Air Enterprises heating and cooling equipment is covered by the Limited Warranty, Condensing Units: 2SCU13, 4SCU13, 4SCU14, 4SCU16, 4SCU18, 2AC13, 2AC14, 4AC13, 4AC14 Heat Pumps: 2SHP13, 4SHP13, 2SHP14, 4SHP14, 4SHP16, 4SHP18, 2HP13, 2HP14, 4HP13, 4HP14 Gas Furnaces: G1N80, G1D80, G2D80, G1D91, G1D93, G2D93, G2D95, FPBB, CG80, CG90, CG92, CG93, CG95 Oil Furnaces: LBR80, LBF80, LHF80, LUF80, LHR80, RLUF, RLBF, RLBR, RLBU, RLHF, RLHR... - Page 25 5-YEAR LIMITED EXTENDED PARTS WARRANTY Allied Air Enterprises Inc. (“Allied Air”) provides its air conditioning and heating products with a Standard Limited Parts Warranty for five (5) years. This additional 5-Year Limited Extended Parts Warranty is in addition to and is intended to supplement Allied Air’s Standard Limited Parts Warranty. As such, Allied Air provides for a total of 10-years of limited warranty coverage (Standard Limited Parts Warranty plus additional 5-Year Limited Extended Parts Warranty).
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