Lennox TPA036S2, Руководство пользователя

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TP − 3 to 5 Ton R−22 Heat Pump Outdoor Units / Page 4
FEATURES
CONTROLS
Defrost Control
Solid-state time/temperature defrost control is furnished
as standard equipment.
Control initiates a defrost cycle every 30, 60 or 90 minutes
of compressor on" time at outdoor coil temperatures
below 42°F (factory setting 90 minutes).
Anti−short cycle, timed−off control incorporated into the
board.
High and low pressure switch monitoring with five−trip
lockout.
Diagnostic LED’s furnished as an aid in troubleshooting.
Conveniently located in control box.
OPTIONS
Freezestat
Installs on or near the vapor line of the indoor coil or on the
suction line.
Senses suction line temperature and cycles the
compressor off when suction line temperature falls below
it’s setpoint.
Opens at 29°F and closes at 58°F.
L Connection
®
Network
See L Connection Engineering Handbook Bulletin in
Controls section for details.
Low Ambient Control
Air conditioners operate satisfactorily down to 45°F
outdoor air temperature without any additional controls.
Two low ambient control options are available for field
installation.
The Low Ambient Control Kit allows unit operation down
to 30°F.
The second control option allows unit operation down to
0°F. This option requires that the outdoor fan motor and
capacitor be changed. See Low Ambient Control Option
table, page 7, for ordering information.
Freezestat should be installed on compressors equipped
with a low ambient kit.
A compressor lock−out thermostat should be added to
terminate compressor operation below recommended
operation conditions (on/off operation, 30°F or modulating
operation, 0°F).
Mild Weather Kit
Heat pump units operate satisfactorily in the heating
mode at outdoor air temperatures up to 75
_
F.
Mild Weather Kit can be field installed, allowing heating
operation above 75
_
F.
Monitor Kit − Service Light
Contains ambient compensating thermistor and service
light thermostat.
For use with thermostats requiring input for indicator lights.
Outdoor Thermostat Kit
An outdoor thermostat can be used to lock out some of the
electric heating elements on indoor units where two stage
control is applicable.
Outdoor thermostat maintains the heating load on the low
power input as long as possible before allowing the full
power load to come on the line.
Thermostat kit and mounting box must be ordered extra.
Thermostat
Thermostat not furnished with unit. See Thermostat
bulletins in Controls Section and Lennox Price Book.
Time Delay Relay Kit
Delays the indoor blower−off time during the cooling cycle.
See ARI Rating Tables for usage.
Cabinet
Heavy gauge steel cabinet with five station metal wash
process.
Powder paint finish provides superior rust and corrosion
protection.
Painted base section.
Control box is conveniently located with all controls
factory wired.
Corner patch plate allows access to compressor
components.
Drainage holes are provided in base section for moisture
removal.
Refrigerant Line Connections, Electrical Inlets,
Service Valves
Sweat connection vapor and liquid lines are located on
corner of unit cabinet.
Fully serviceable brass service valves prevent corrosion
and provide access to refrigerant system. Vapor valve can
be fully shut off, while liquid valve may be front seated to
manage refrigerant charge while servicing system.
Refrigerant line connections and field wiring inlets are
located in one central area of cabinet for easy access. See
dimension drawing.
OPTIONS
Hail Guards
Constructed of louvered heavy gauge steel painted to
match cabinet.
Surrounds unit on all four sides to prevent damage to the
coil.
Mounting Base
Provides permanent foundation for outdoor units.
High density polyethylene structural material is
lightweight, sturdy, sound absorbing and will withstand the
rigors of the sun, heat, cold, moisture, oil and refrigerant.
Will not mildew or rot.
Can be shipped singly or in packages of 6 to a carton.
Unit Stand-Off Kit
Black high density polyethylene feet are available to raise
unit off of mounting surface away from damaging
moisture.
Four feet are furnished per order number.
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