Lennox Elite XP16024, User Manual

Page: 4 / 16

XP16 − 2 to 5 Ton Heat Pump / Page 4
FEATURES
COMPRESSOR (CONTINUED)
Crankcase Heater
Crankcase heater prevents migration of liquid refrigerant
into compressor and ensures proper compressor
lubrication.
CONTROLS
Defrost Control
Solid-state control furnished as standard.
Gives a demand defrost cycle whenever system heating
performance falls below optimum levels. The sensing
element on coil determines when defrost cycle is required
and when to terminate cycle.
Anti−short cycle (5 minutes) incorporated into the board.
Diagnostic LED’s furnished as an aid in troubleshooting.
Conveniently located in control box.
OPTIONS
ComfortSense
t
7000 Touchscreen Thermostat
Electronic 7−day, universal,
multi−stage, programmable,
touchscreen thermostat.
4 Heat/2 Cool.
Auto−changeover.
Controls humidity during
cooling mode.
Offers enhanced
capabilities including
humidification / dehumidification / dewpoint measurement
and control, Humiditrol
®
control, and equipment
maintenance reminders.
Easy−to−use, menu driven thermostat with a back−lit, LCD
touchscreen.
Remote outdoor temperature sensor (optional) allows the
thermostat to display outdoor temperature. Required in
dual fuel and Humiditrol
®
applications.
See the ComfortSense
t
7000 Engineering Handbook
bulletin in the Controls section for more information.
Compressor Hard Start Kit
Single−phase units are equipped with a PSC compressor
motor.
This type of motor normally does not need a potential
relay and start capacitor.
In conditions such as low voltage, kit may be required to
increase the compressor starting torque.
Hard start kit is required in applications where the supply
voltage is less than 230V.
Indoor Blower Off Delay Relay
Delays the indoor blower−off time during the cooling cycle.
See ARI Rating Tables for usage.
Indoor Blower Speed Relay Kit
Relay kit provides optimum humidity control conditions by
automatically reducing indoor blower speed during
continuous fan or first−stage compressor operation.
Low Ambient Kit
Heat pump will operate in the cooling mode satisfactorily
down to 45
_
F outdoor air temperature without any additional
controls.
Kit can be added in the field enabling unit to operate
properly down to 30
_
F.
A Freezestat should be installed on compressors
equipped with a low ambient kit.
A Compressor Low Ambient Cut−Off 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.
Cabinet
Heavy−gauge steel construction
Pre−painted cabinet finish.
Pre−painted base section.
Control box is conveniently located with all controls
factory wired.
Large removable panel provides service access.
Drainage holes are provided in base section for moisture
removal.
High density polyethylene unit support feet raise the unit off
of the mounting surface, away from damaging moisture.
SmartHinge
t
Louvered Coil Protection
Steel louvered panels
provides complete coil
protection.
Panels are hinged to
allow easy cleaning
and servicing of coils.
Panels may be
completely removed.
Interlocking tabs and
slots assure tight fit on
cabinet.
Refrigerant Line Connections, Electrical Inlets and
Service Valves
Vapor and liquid lines are located on corner of unit cabinet
and are made with sweat connections. See dimension
drawing.
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 the cabinet. See dimension
drawing.
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