Allied 4SHP18LX Installation Instructions Manual

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This is a safety alert symbol and should never be ignored. When you see this symbol on labels or in manuals, be alert to

the potential for personal injury or death.

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.

ELECTRICAL SHOCK HAZARD!

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.

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.

Manufactured By

Allied Air Enterprises LLC

A Lennox International, Inc. Company

215 Metropolitan Drive

West Columbia, SC 29170

508279-01

INSTALLATION INSTRUCTIONS

4SHP18LX Units

(R410A Refrigerant)

This manual must be left with the homeowner for future reference.

WARNING

Application ...................................................................1

General ........................................................................2

Installation ...................................................................2

Refrigerant Piping ........................................................4

Electrical - Circuit Sizing and Wire Routing ...............13

Thermostat Control and Low Voltage Control Wiring 13

Outdoor Unitary Control.............................................18

Unit Operation ...........................................................20

Start-Up .....................................................................21

Maintenance ..............................................................23

Homeowner Information ............................................23

Start-Up and Performance Checklist .........................26

Sharp metal edges can cause injury. When installing

the unit, use care to avoid sharp edges.

Application

These units are designed for use in residential and light

commercial type buildings. Units should be installed with

approved indoor matches listed in the Air-Conditioning,

Heating and Refrigeration Institute (AHRI) Directory of

Certified Products. Refer to http://www.ahridirectory.org.

*P508279-01*

Issue 2411

WARNING

(P) 508279-01

Page 1 of 26

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Summary of Contents for Allied 4SHP18LX

Page 1: Table Of Contents
Fines and/or incarceration Heating and Refrigeration Institute (AHRI) Directory of may be levied for noncompliance. Certified Products. Refer to http://www.ahridirectory.org. Manufactured By *P508279-01* Allied Air Enterprises LLC A Lennox International, Inc. Company 215 Metropolitan Drive (P) 508279-01 West Columbia, SC 29170 508279-01...
Page 2: General
Handle refrigerant with caution; refer to proper MSDS General from refrigerant supplier. Use care when lifting, avoid contact with sharp edges. Read this entire instruction manual, as well as the instructions supplied in separate equipment, before Installation starting the installation. Observe and follow all warnings, cautions, instructional labels, and tags.
Page 3 TXV. See Refrigerant Piping - Refer to Table 1 for installation clearances. Typical Existing Expansion Valve Removal Procedure for details of changing the piston or TXV. The 4SHP18LX Location Minimum Clearance models are only rated with TXV on the indoor coil.
Page 4: Refrigerant Piping
DO LOCATE THE UNIT: • Ensure that tubing insulation is pliable and completely surrounds vapor tube. • With proper clearances on sides and top of unit It is important that no tubing be cut or seals broken until you • On a solid, level foundation or pad (unit must be level are ready to actually make connections to the evaporator to within ±...
Page 5 Heat Pump System (HFC410A) • Total equivalent length equals 180 feet (piping and all WARNING fittings included). Polyvinyl ether (PVE) oils used with HFC-410A NOTE: Length is general guide. Lengths may be refrigerant absorb moisture very quickly. It is very more or less, depending on remaining system design important that the refrigerant system be kept closed factors.
Page 6 Total Linear Length (ft.) Tonnage Line SIze 3/8” 3/8” 1/2” 3/8” 1/2” 3/8” 1/2” NOTE: Shaded rows indicate rated liquid line size. A. Find your tonnage on the left side of the table. B. Start with the rated liquid line size (shaded row) on the outdoor tonnage. C.
Page 7 Disconnect the liquid line from the expansion valve at the liquid line assembly. WARNING Disconnect the expansion valve from the liquid line orifice housing. Take care not to twist or damage Fire, Explosion and Personal Safety distributor tubes during this process. hazard.
Page 8 Refrigerant Piping - Install Indoor Expansion Valve This outdoor unit is designed for use in systems that include a heat pump expansion valve metering device at the indoor coil. See the Product Specifications for approved expansion valve kit match-ups and application information. The expansion valve unit can be installed internal or external to the indoor coil.
Page 9 Refrigerant Piping - Brazing Procedures CAP AND CORE REMOVAL CUT AND DEBUR Cut ends of the refrigerant lines square (free from nicks or dents) Remove service cap and core from and debur the ends. The pipe must remain round. Do not crimp end both the vapor and liquid line service of the line.
Page 10 WRAP SERVICE VALVES To help protect service valve seals during brazing, wrap water-saturated cloths around service valve bodies and copper tube stubs. Use additional water-saturated cloths underneath the valve body to protect the base paint. FLOW NITROGEN Flow regulated nitrogen (at 1 to 2 psig) through the refrigeration gauge set into the valve stem port connection on the liquid service valve and out of the vapor valve stem port.
Page 11 Leak Test and Evacuation LEAK TEST HIGH MANIFOLD GAUGE SET OUTDOOR UNIT TO VAPOR SERVICE VALVE NOTE - Position canister to deliver liquid refrigerant. NITROGEN HFC-410A CONNECT GAUGE SET A - Connect the high pressure hose of an HFC-410A manifold gauge set to the vapor valve service port. NOTE - Normally, the high pressure hose is connected to the liquid line port.
Page 12 EVACUATION HIGH CONNECT GAUGE SET NOTE - Remove cores from service valves (if not already done). A - Connect low side of manifold gauge set with 1/4 SAE in-line tee to vapor line service valve B - Connect high side of manifold gauge set to OUTDOOR MANIFOLD liquid line service valve...
Page 13: Electrical - Circuit Sizing And Wire Routing
Unit may have advantage of the advanced diagnostics and control, Wi- multiple power supplies. Fi accessibility and system operation parameters. Refer to the 4SHP18LX field wiring diagram for a Comfort Sync A3 communicating thermostat. WARNING Conventional 24VAC Non-Communicating Thermostat...
Page 14 (Jumper Y1 to Y2) Thermostat (non- communicating) Control Using Suction Pressure communicating) Table 6. 4SHP18LX Thermostat Control Options Size Circuit and Install Service Disconnect Install Thermostat Switch Install room thermostat (ordered separately) on an inside wall approximately in the center of the conditioned area Refer to the unit nameplate for minimum circuit ampacity, and 5 feet (1.5m) from the floor.
Page 15 Connect the 208/230 high voltage power supply from the installed grommet installed in electrical inlet. disconnect to the 4SHP18LX contactor as shown. Connect the ground wire from the power supply to the unit ground Conventional 24VAC Non-Communicating Thermostat lug connection.
Page 16 PROVIDED RAST 6-PIN CONNECTOR INDOOR CONTROL Indoor Control Single Wire To C Terminal Single Wire To C Terminal Unused Wires Unused Wires Figure 9. 4SHP18LX with Comfort Sync A3 Communicating Thermostat – Field Wiring Page 16 of 26 Issue 2411 508279-01...
Page 17 O.D. SENSOR O.D. SENSOR OPTIONAL OPTIONAL ACC2 ACC2 ACC1 ACC1 RAST 6-PIN RAST 6-PIN CONNECTOR CONNECTOR RAST 6-PIN RAST 6-PIN CONNECTOR CONNECTOR VARIABLE CAPACITY TWO STAGE / CONVENTIONAL 24VAC VARIABLE CAPACITY TWO STAGE / CONVENTIONAL 24VAC OUTDOOR UNIT VARIABLE SPEED NON-COMMUNICATING OUTDOOR UNIT VARIABLE SPEED...
Page 18: Outdoor Unitary Control
The 4SHP18LX units are programmed from the factory to function in 3 Ton and 5 Ton modes of operation. If the Push and hold button until the code for the correct unit intended capacity for the application is 3 or 5 Ton, skip this type is displayed.
Page 19 Charge Mode for a maximum time of 60 minutes Charge Mode Jumper and will automatically exit the charge mode and resume To initiate the 4SHP18LX Charge Mode function, install normal operation after 60 minutes even if the charge mode the jumper across the two Charge Mode Pins (CHRG jumper is left in place.
Page 20: Unit Operation
24VAC non-communicating heat A3 Communicating Thermostat pump thermostat, the compressor capacity is controlled to When the 4SHP18LX unit is installed with a Comfort Sync maintain the target liquid pressure setpoint. The Heating A3 Communicating Thermostat and Comfort Sync-enabled...
Page 21: Start-Up
Oz. Per 5 ft. adjust from 15 Start-Up Liquid Line Set Diameter ft. line set* 3 oz. per 5 ft. 3/8 in. or 0.6 oz. per 1 ft. CAUTION * If line length is greater than 15 ft., add this amount. If line If unit is equipped with a crankcase heater, it should length is less than 15 ft., remove this amount.
Page 22 Torque Requirements To Access the Schrader Port: When servicing or repairing HVAC components, ensure Remove the service port cap with an adjustable the fasteners are appropriately tightened. Table 12 shows wrench. torque values for fasteners. Connect gauge to the service port. Fastener Torque When testing is completed, replace service port cap.
Page 23: Maintenance
Maintenance WARNING SHARP OBJECT HAZARD! Regular Maintenance Requirements Your system should be regularly inspected by a qualified Condenser coils have sharp edges. Wear adequate service technician. These regular visits may include body protection on body extremities (e.g. gloves). (among other things) checks for: FAILURE TO FOLLOW THIS WARNING COULD •...
Page 24 defrost cycle to satisfy a heating demand; however, Programmable Thermostats the unit will run to normal operation at the conclusion Your system may be controlled by a programmable of the defrost cycle. thermostat. These thermostats provide the added feature of programmable time-of-day set points for both heating and In case of extended power outage...
Page 25 Figure 16. Wiring Diagram 508279-01 Issue 2411 Page 25 of 26...
Page 26: Start-Up And Performance Checklist
Start-Up and Performance Checklist Customer: _____________________________________ Address: _______________________________________ Indoor Unit Model: _______________________________ Serial: _________________________________________ Outdoor Unit Model: ______________________________ Serial: _________________________________________ Notes: __________________________________________________________________________________________ Start-Up Checks Refrigerant Type: _____________________ Rated Load Amps: ____________________ Actual Amps: ______ Rated Volts: _______ Actual Volts: ________ Condenser Fan Full Load Amps: _________ Actual Amps: ______ Cooling Mode Suction Pressure: ____________________ Liquid Pressure: _________...

Allied 4SHP18LX Installation Instructions Manual

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