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E 2000 Lennox Industries Inc.
Dallas, Texas, USA
HS40 Condensing Unit
HS40 condensing units use R407C which is an ozone
friendly HFC refrigerant. This unit must be installed with a
matching indoor coil and line set as outlined in the Lennox
Engineering Handbook. HS40 condensing units are de
signed for use in expansion valve systems only. They are
not designed to be used in RFC systems. An expansion
valve and filter drier approved for use with R407C have
been shipped with the unit. These components must be
installed prior to unit operation.
Refrigerant can be harmful if it is inhaled. Refriger
ant must be used and recovered responsibly.
Failure to follow this warning may result in personal
injury or death.
International legislation bans the intentional venting
of refrigerant (CFCs and HCFCs). Approved methods
of recovery, recycling or reclaiming must be fol
lowed. Fines and/or incarceration may be levied for
noncompliance.
11/02
*2P1102*
WARNING
WARNING
INSTALLATION
INSTRUCTIONS
HS40 SERIES UNITS
CONDENSING UNITS
504,186M
11/2002
Supersedes 4/2000
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RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
Shipping and Packing List
1 − Assembled HS40 condensing unit
1 − Bag assembly:
1 − Sight glass
1 − 5/16−3/8 inch adapter
1 − 45° elbow
1 − Expansion valve (approved for use with R407C)
1 − Drier (approved for use with R407C systems)
Check equipment for shipping damage. If you find any
damage, immediately contact the last carrier.
WARNING
This equipment must only be installed and serviced
by properly qualified personnel. Equipment contains
dangerous voltages and moving parts. Always
switch off power supply before opening any access
panel. Electrical control panel doors and fan access
door must be locked to prevent unauthorized access
at beginning of instruction.
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Litho U.S.A.
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504,186M
*P504186M*
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Related Manuals for Lennox HS40 Series
Summary of Contents for Lennox HS40 Series
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Page 1: Table Of Contents
RETAIN THESE INSTRUCTIONS friendly HFC refrigerant. This unit must be installed with a FOR FUTURE REFERENCE matching indoor coil and line set as outlined in the Lennox Engineering Handbook. HS40 condensing units are de Shipping and Packing List signed for use in expansion valve systems only. They are not designed to be used in RFC systems. -
Page 2: Unit Dimensions
Unit Dimensions − mm INLET (111) (111) (111) (111) OPTIONAL UNIT STAND OFF KIT (4) INLET INLET COMPRESSOR (Field Installed) COIL DRAIN OUTLETS (Around perimeter of base) SUCTION LINE CONNECTION (162) (111) LIQUID LINE CONNECTION INLET (111) (162) TOP VIEW BASE SECTION TOP VIEW DISCHARGE OUTDOOR... -
Page 3: General Information
A − Slab Mounting General Information When installing the unit at grade level, install it on a level These instructions are intended as a general guide and do slab that is high enough above the grade to allow water to not supersede national or local codes in any way. -
Page 4: Plumbing
. Use internal shape must remain round. The line must be free Lennox L15 series line sets as shown in table 1 or use field− of nicks or dents and must be deburred (I.D. and O.D.) fabricated refrigerant lines. - Page 5 3 − Remove the existing refrigerant flow control orifice or CAUTION thermal expansion valve before continuing with flush ing procedures. The existing devices are not approved This procedure should not be performed on sys for use with R407C refrigerant and may prevent prop tems which contain contaminants (Example: com pressor burn out).
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Page 6: Liquid & Suction Line Service Valves
FLUSHING CONNECTIONS INVERTED R22 CYLINDER (Contains clean R22 to be used for flushing) HIGH PRESSURE PRESSURE HS40 UNIT SUCTION LINE SERVICE VALVE EXISTING SUCTION LINE GAUGE MANIFOLD EXISTING OPENED CLOSED EXISTING LIQUID LINE LIQUID LINE INDOOR COIL SERVICE VALVE TANK RETURN RECOVERY CYLINDER NOTE −... -
Page 7: Leak Testing
To Close Liquid or Suction Line Service Valve: Using an Electronic Leak Detector 1 − Remove stem cap with an adjustable wrench. IMPORTANT 2 − Use a service wrench with a hex−head extension to turn the stem clockwise to seat the valve. Tighten firm Leak detector must be capable of sensing HFC re frigerant. -
Page 8: Start−Up
2 −The nitrogen holding charge in the unit must be re Refer to the unit nameplate for the correct liquid charge. If you can not measure in the total amount, refer to the leased. Open both manifold valves to release the nitro start−up section and set the final system charge accord gen from the unit. - Page 9 TABLE 3 R407C Saturated Liquid Temperature and Pressure Chart Use this chart for subcooling only, not superheat Liquid Line Pressure Liquid Line Pressure Saturated Liquid Saturated Liquid Saturated Liquid Saturated Liquid R407C R407C Temperature °C Temperature °C Psig (kPa) Psig (kPa) Psig (kPa) Psig (kPa) 116 (799)
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Page 10: System Operation
Checking Unit Charge Using Subcooling when Refrigerant Sight Glass Outdoor Temperature is > 16°C A refrigerant sight glass is provided (in the bag assembly) with the unit. The sight glass should be field installed in the 1 − After the pressures have stabilized, attach the man liquid line to monitor the system refrigerant. -
Page 11: Start−Up & Performance Check List
Start−Up & Performance Check List Job Name Job No. Date Job Location City State Installer City State Unit Model No. Serial No. Service technician Nameplate Voltage Amps: Minimum Circuit Ampacity Supply Condenser Fan Maximum Overcurrent Protection Size Compressor Electrical Connections Tight? Indoor Filter Clean? Indoor Blower CFM Supply Voltage (Unit Off) - Page 12 Lennox Industries P.O. Box 174, Westgate Interchange, Northampton NN5 5AG Telephone: 01604 591159 Facsimile: 01604 587536 Page 12...
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