Advertisement
Quick Links
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.
506468-01
4HP16LT Series
Split System Heat Pump
Save these instructions for future reference
WARNING
Issue 1004
TABLE OF CONTENTS
INSTALLATION ...................................... 2
CONNECTION DIAGRAM ..................... 4
START-UP ............................................ 13
OPERATION ........................................ 18
MAINTENANCE ................................... 23
Manufactured By
Allied Air Enterprises, Inc.
A Lennox International Inc. Company
215 Metropolitan Drive
West Columbia, SC 29170
*506468-01*
Page 1
Advertisement
Related Manuals for Allied Air Ducane 4HP16
Summary of Contents for Allied Air Ducane 4HP16
- Page 1 Only trained and qualified service Manufactured By personnel should install or service this Allied Air Enterprises, Inc. equipment. Installation and service performed A Lennox International Inc. Company 215 Metropolitan Drive by unqualified persons can result in property West Columbia, SC 29170 damage, personal injury, or death.
- Page 2 INSTALLATION 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 General last carrier immediately, preferably in writing, and should Read this entire instruction manual, as well as the include a request for inspection by the carrier’s agent.
- Page 3 NOTE: Elevation of the unit may be accomplished by Refer to the furnace or blower coil Installation Instructions constructing a frame using suitable materials. If a for additional wiring application diagrams and refer to unit support frame is constructed, it must not block drain rating plate for minimum circuit ampacity and maximum holes in unit base.
- Page 4 Field refrigerant piping consists of liquid and suction lines Thermostat Designations from the outdoor unit (sweat connections) to the indoor coil (Some connections may not apply. Refer to (flare or sweat connections). specific thermostat and indoor unit.) Select line set diameters from Table 2 to ensure that oil Without Auxiliary Heat returns to the compressor.
- Page 5 Line Set Isolation WARNING Illustrations on pages 6 and 7 demonstrate procedures Polyol ester (POE) oils used with R410A which ensure proper refrigerant line set isolation. Figure 5 refrigerant absorb moisture very quickly. It is shows how to install line sets on horizontal runs. Figure 6 shows how to make a transition from horizontal to vertical.
- Page 6 Refrigerant Line Sets: Installing Horizontal Runs To hang line set from joist or rafter, use either metal strapping material Wire Tie or anchored heavy nylon wire ties. (around vapor line only) 8’ Strapping Material Floor Joist or (around vapor line only) Roof Rafter Tape or Wire Tie 8’...
- Page 7 Refrigerant Line Sets: Installing Vertical Runs (new construction shown) IMPORTANT: Refrigerant lines must not contact wall. Outside Wall Vapor Line Liquid Line NOTE: Similar installation practices should be used if line set is to be Wood Block installed on exterior of outside wall. Between Studs Wire Tie Inside Wall...
- Page 8 Flushing Connections Note: The inverted R22 cylinder must contain at least the same amount of refrigerant as was recovered from the existing system. Figure 8 If the existing outdoor unit is equipped with manual are not approved for use with R410A refrigerant and shutoff valves AND new R22 refrigerant will be used may prevent proper flushing.
- Page 9 removed during the first flush. After each system flush, allow the recovery machine to pull a vacuum on the system at the end of the procedure. 9. Close the valve on the inverted R22 cylinder and the gauge set valves. Pump the remaining refrigeraant out of the recovery machine and turn the machine off.
- Page 10 Service Valve Ball Type Service Valve (Valve Open) Valve Closed Stem Cap Service Port Insert hex wrench here To outdoor coil Service Port Cap To indoor coil Schrader valve open (valve front seated) to line set when valve is closed (front seated) Stem Cap Insert hex wrench here...
- Page 11 to protect the manifold gauge set from damage • Low pressure gauge to suction line service valve caused by high pressure.) • High pressure gauge to liquid line service valve 2. With both manifold valves closed, connect the cylin- 2. Connect micron gauge. der of R410A refrigerant.
- Page 12 Units are factory charged with the amount of R410A START-UP 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 4 for refrigerant charge adjustment.
- Page 13 Cooling Cycle OUTDOOR UNIT DEFROST THERMOSTAT DISTRIBUTOR NOTE - ARROWS INDICATE DIRECTION OF REFRIGERANT FLOW REVERSING VALVE EXPANSION/CHECK VALVE OUTDOOR COIL BIFLOW HIGH INDOOR UNIT FILTER / DRIER PRESSURE PRESSURE MUFFLER GAUGE MANIFOLD SUCTION SUCTION SERVICE LIQUID LINE PORT R410A LINE VALVE COMPRESSOR...
- Page 14 Blocking Outdoor Coil R410A Temperature/Pressure Chart Outdoor coil should be Temp. Pressure Temp. Pressure Temp. Pressure blocked one side at a time Psig Psig Psig with cardboard or plastic 100.8 214.0 396.0 sheet until proper testing 102.9 217.4 401.3 pressures are reached. 105.0 220.9 406.7...
- Page 15 Normal Operating Pressures Heating & Cooling Cooling Indoor: 80 db; 67 wb Heating (indoor): 70°F ± 2 psi L - Liquid S- Suction Values provided above are for HSV match pressures; different indoor unit match, and indoor load will cause pressures to vary.
- Page 16 Check Charge Using Normal Operating Pressures 5. Subtract the outdoor ambient temperature from the liquid line temperture to determine the approach temperature. Use Table 7 to perform maintenance checks. Table 7 is not a procedure for charging the system. Minor variations in °...
- Page 17 OPERATION NOTE - The demand defrost board accurately measures the performance of the system as frost Outdoor unit and indoor blower cycle on demand from the accumulates on the outdoor coil. This typically will room thermostat. When the thermostat blower switch is translate into longer running time between defrost moved to the ON position, the indoor blower operates cycles as more frost accumulates on the outdoor coil...
- Page 18 DEFROST BOARD PRESSURE SWITCH Sensor Temp. / Resistance Range CONNECTIONS Temperature Pins/Wire The unit’s automatic reset pressure switches (LO PS - Red Led (DS1) Sensor Range °F (°C) Color S87 and HI PS - S4) are factory-wired into the defrost Outdoor -35 (-37 to 120 3 &...
- Page 19 Actuation—When the reversing valve is de-energized, Defrost Temperature Termination Shunt (Jumper) Pins—The defrost board selections are: 50, 70, 90, and the Y1 circuit is energized, and the coil temperature is 100°F (10, 21, 32 and 38°C). The shunt termination pin is below 35°F (2°C), the board logs the compressor run factory set at 50°F (10°C).
- Page 20 506468-01 Issue 1004 Page 20...
- Page 21 Defrost Control Board Diagnostic LEDs 506468-01 Issue 1004 Page 21...
- Page 22 flashes correlates to a particular abnormal condition. System Diagnostic Module TRIP LED (Red) indicates there is a demand signal from 4HP16LT units contain a diagnostic module for trouble- the thermostat but no current to the compressor is de- shooting heat pump system failures. By monitoring and tected by the module.
- Page 23 60 seconds. The module will continue to display the 24VAC Power Wiring previous flash code until the condition returns to normal or 24VAC is removed from the module. TRIP and ALERT The diagnostic module requires a constant nominal LEDs flashing at the same time means control circuit 24VAC power supply.
- Page 24 Thermostat Demand Wiring Miswired Module Codes The diagnostic module requires a thermostat demand Depending on the system configuration, some ALERT signal to operate properly. The thermostat demand signal flash codes may not be active. The presence of safety input, labeled Y on the module, should always be con- switches affects how the system alerts are displayed by nected to the compressor contactor coil so that when the the module.
- Page 25 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 26 HOMEOWNER INFORMATION is exposed 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 properly maintained. Clogged filters and blocked airflow prevent your unit from operating at its most efficient level.
- Page 27 adjustment; turning the unit off and back on before Preservice Check pressures equalize puts stress on unit compressor. If your system fails to operate, check the following before Fan Switch calling for service: In AUTO or INT (intermittent) mode, the blower operates •...
- Page 28 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 29 Single Stage Wire Diagram 506468-01 Issue 1004 Page 29...
- Page 30 Two Stage Wire Diagram 506468-01 Issue 1004 Page 30...
Need help?
Do you have a question about the Ducane 4HP16 and is the answer not in the manual?
Questions and answers