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Allied Air 4SHP13 Series Installation And Maintenance Instructions Manual

Split system heat pump
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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.
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.
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.
Sharp metal edges can cause injury. When installing
the unit, use care to avoid sharp edges.
4SHP13 Series
Split System Heat Pump
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INSTALLATION .................................................... 2
START-UP .......................................................... 12
OPERATION ...................................................... 17
MAINTENANCE ................................................. 18
HOMEOWNER INFORMATION ......................... 19
WIRING DIAGRAM ............................................ 22
WARRANTY ....................................................... 26
A Lennox International Inc. Company
Issue 0921


Manufactured By
Allied Air Enterprises Inc.
215 Metropolitan Drive
West Columbia, SC 29170
Page 1 of 26



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  Summary of Contents for Allied Air 4SHP13 Series

  • Page 1: Table Of Contents

    Installation and service performed by Manufactured By unqualified persons can result in property damage, Allied Air Enterprises Inc. personal injury, or death. A Lennox International Inc. Company 215 Metropolitan Drive West Columbia, SC 29170...
  • Page 2: Installation

    INSTALLATION Check the unit rating plate to confirm specifications are as ordered. General Location of Unit Read this entire instruction manual, as well as the instructions supplied in separate equipment, before Outdoor units operate under a wide range of weather starting the installation.
  • Page 3 • Locate unit away from overhanging roof lines which would 2. Ground unit at unit disconnect switch or to an earth ground. allow water or ice to drop on, or in front of, coil or into To facilitate conduit, a hole is in the bottom of the control unit.
  • Page 4 Thermostat Designations Refrigerant Line Set Diameters (in.) (Some connections may not apply. Refer to specific thermostat and indoor unit.) Without Auxiliary Heat With Auxiliary Heat For installations eceeding 50’, contact Technical Services at (419) 483-4840. Do not connect C (common) connection between indoor unit and thermostat except when required by the indoor thermostat.
  • Page 5 Installing Refrigerant Line During the installation of an air conditioning system, it is Outside Unit Placement and Installation important to properly isolate the refrigerant line to prevent unnecessary vibration. Line set contact with the structure Install unit away (wall, ceiling, or floor) may cause objectionable noise when from windows vibration is translated into sound.
  • Page 6 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 –...
  • Page 7 Brazing Connection Procedure 410A refrigerant) in the liquid line at the indoor coil (see 1. Cut ends of refrigerant lines square (free from nicks or Refrigerant Metering Device on page 8). dents). Debur the ends. The pipe must remain round; do not pinch end of line.
  • Page 8 Flushing Procedure 5. Remove the pressure tap valve cores from the 4SCU13 unit’s service valves. Connect an R-22 cylinder with IMPORTANT: The line set and/or indoor coil must be clean refrigerant to the suction service valve. Connect flushed with at least the same amount of refrigerant that the R-22 gauge set to the liquid line valve and connect previously charged the system.
  • Page 9 appropriately sized to be matched with the 4SCU13 unit. If TXV Data necessary, replace the existing indoor unit fixed orifice with the orifice supplied with the 4SCU13 unit. Place the supplied Part fixed orifice sticker on the indoor cabinet after installation. Model Number Fixed Orifice Data...
  • Page 10 Each valve is equipped with a service port which has a factory- To Close Liquid or Suction Line Service Valve: installed Schrader valve. A service port cap protects the 1. Remove the stem cap with an adjustable wrench. Schrader valve from contamination and serves as the primary leak seal.
  • Page 11 however, connecting it to the suction ports helps to WARNING protect the manifold gauge set from damage caused by high pressure.) Do not use a compressor to evacuate a system. Avoid deep vacuum operation. Extremely low vacuums can 2. With both manifold valves closed, connect the cylinder cause internal arcing and compressor failure.
  • Page 12: Start-Up

    START-UP Refrigerant Charge Adjustment CAUTION Liquid Line Set Oz. per 5 ft. adjust Diameter from 15 ft. line set * If unit is equipped with a crankcase heater, it should be energized 24 hours before unit start-up to prevent 3/8 in. 3 oz.
  • Page 13 Cooling Cycle Use gauge ports on suction line valve and liquid line valve for evacuation refrigerant lines and indoor coil. Use suction gauge to measure suction pressure during charging. Figure 12 1. Recover the refrigerant from the unit. • Low pressure gauge to suction line service valve •...
  • Page 14 _____ ° Saturation Temperature °F R410A Temperature/Pressure Chart – _____ ° Liquid Line Temperature °F _____ ° Subcooling Value °F F ° F ° F ° 4. Subtract the liquid line temperature from the saturation temperature (according to the chart) to determine subcooling.
  • Page 15 5. Compare the superheat value with those shown in Table 4. Use the same digital thermometer to check liquid line 8. If superheat is greater than shown, add some temperature. refrigerant. If superheat is less than shown, recover some refrigerant. 5.
  • Page 16 L - Liquid S - Suction Values provided above are typical pressures. Indoor unit matchup, indoor air quality equipment, and indoor load will cause pressures to vary. Table 9 Approach Values for TXV Systems 4SCU13 MODELS Approach value is the liquid line temperature minus the outdoor ambient temperature (±1°F).
  • Page 17: Operation

    OPERATION The control provides automatic switching from normal heating operation to defrost mode and back. During the Outdoor unit and indoor blower cycle on demand from the compressor cycle (call for defrost), the control accumulates room thermostat. When the thermostat blower switch is compressor run time at 30, 60, 90 minute field adjustable moved to the ON position, the indoor blower operates intervals.
  • Page 18: Maintenance

    MAINTENANCE Pressure Switch Circuit The defrost control includes two pressure switch circuits. A high pressure switch is connected to the board’s HI-PS terminals (see Figure 13 on page 17). The low pressure, or WARNING loss-of-charge pressure, switch is connected to the LO-PS Before performing maintenance operations on system, terminals.
  • Page 19: Homeowner Information

    HOMEOWNER INFORMATION The outdoor coil may require frequent cleaning, depending on environmental conditions. Clean the outdoor coil with In order to ensure peak performance, your system must be an unpressurized water hose to remove surface properly maintained. Clogged filters and blocked airflow contaminants and debris.
  • Page 20 Thermostat Operation Preservice Check Though your thermostat may vary somewhat from the If your system fails to operate, check the following before description below, its operation will be similar. calling for service: Temperature Setting Levers Check to see that all electrical disconnect switches are Most heat hump thermostats have two temperature selector levers: one for heating and one for cooling.
  • Page 21 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 _______________ Outdoor Fan ___________________ Maximum Fuse or Circuit Breaker ________________________...
  • Page 22 Wiring Diagram P/N 46330-002 Figure 14 Page 22 of 26 Issue 0921 506272-01...
  • Page 23: Wiring Diagram

    Wiring Diagram Figure 15 506272-01 Issue 0921 Page 23 of 26...
  • Page 24 Wiring Diagram Figure 16 Page 24 of 26 Issue 0921 506272-01...
  • Page 25: Warranty

    Allied Air from the date of the original installation, when installed in non-residential applications. If, during this period, a covered component fails because of a manufacturing defect, Allied Air will provide a free replacement part to the owner through a licensed service contractor utilizing an Allied Air distributor. You must pay shipping charges and all other costs of warranty service. Allied Air will not pay labor involved in diagnostic calls or in removing, repairing, servicing or replacing parts.
  • Page 26 LIMITED EXTENDED PARTS WARRANTY Allied Air Enterprises, Inc. (“Allied”) provides its air conditioning and heating products with a standard five-year parts warranty. This limited extended parts warranty is in addition to and is intended to supplement Allied’s standard 5-year parts warranty. As such, this limited extended warranty provides for a total of 10-years of limited warranty coverage (Standard 5-Year Limited Parts Warranty plus Additional 5-Year Limited Extended Parts warranty).

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