Goodman LAKT01, LAKT03 Installation Manual
LAKT01 & LAKT03
LOW AMBIENT KITS
INSTALLATION INSTRUCTIONS
ATTENTION INSTALLING PERSONNEL
As a professional installer you have an obligation to know the product better than the customer. This includes all safety precautions
and related items.
Prior to actual installation, thoroughly familiarize yourself with this
Instruction Manual. Pay special attention to all safety warnings.
Often during installation or repair it is possible to place yourself in
a position which is more hazardous than when the unit is in operation.
Remember, it is your responsibility to install the product safely
and to know it well enough to be able to instruct a customer in its
safe use.
Safety is a matter of common sense...a matter of thinking before
acting. Most dealers have a list of specific good safety practices...
follow them.
The precautions listed in this Installation Manual are intended as
supplemental to existing practices. However, if there is a direct
conflict between existing practices and the content of this manual,
the precautions listed here take precedence.
DESCRIPTION
The LAKT01 and LAKT03 low ambient kits (for Light Commercial
Models and Residential Splits) are temperature sensitive fan motor speed controls designed to regulate the outdoor section head
pressure by varying the air volume through the outdoor coil and
are required when operating below 55
is achieved by sensing the liquid temperature at the coil by means
of a thermistor probe. The probe provides an input signal to the
control to increase the fan motor speed in relation to changes in
the liquid temperature. Ensure all parts are included before beginning. If parts are missing from the kit contact the distributor where
the kit was purchased.
NOTE: These kits are not approved for any 16 and 18 SEER outdoor units that utilize an ECM condenser fan motor.
°
F outdoor temperature. This
The following accessories must be installed on all condensers and
remote heat pumps when equipped with low ambient kits.
1. Crankcase heater must be installed if not factory installed.
2. Hard start kit for single phase units. (See Spec Sheet for
Accessories)
3. TXV kit installed on indoor evaporator coil, if not factory installed.
4. FSK01A - Freeze protection kit must be installed on indoor
coil.
o
5. Wind buffer must be installed for temperatures below 0
areas with high prevailing winds. Wind buffer can be a wall
fabricated from wood or masonry material that will prevent
the prevailing wind from causing the outdoor fan to rotate.
NOTE: When wind buffer is installed, it is necessary to use
minimum 4" risers to elevate the unit off of the pad to provide
better airflow for moderate and high ambient temperatures.
F or
NOTE: SPECIFICATIONS AND PERFORMANCE DATA LISTED HEREIN ARE SUBJECT TO CHANGE WITHOUT NOTICE
Quality Makes the Difference!
All of our systems are designed and manufactured with the same high quality standards regardless of size or
efficiency. We have designed these units to significantly reduce the most frequent causes of product failure.
They are simple to service and forgiving to operate. We use quality materials and components. Finally, every
unit is run tested before it leaves the factory. That’s why we know. . .There’s No Better Quality.
Visit our website at www.daikincomfort.com, www.goodmanmfg.com or www.amana-hac.com for information on:
• Products • Parts
• Warranties • Contractor Programs and Training
• Customer Services • Financing Options
IO-826
7/2014
is a registered trademark of Maytag Corporation or its related companies and is used under license to
© 2014 Goodman Manufacturing Company, L.P.
Goodman Company, L.P., Houston, TX, USA. All rights reserved.
PARTS LIST FOR KITS
Item Part No. Qty.
Pres sure Control & Probe LAKT01 0130M00058 1
Pres sure Control & Probe LAKT03 0130M00059 1
Wire As sembly LAKT01 --- 8
Wire As sembly LAKT03 --- 6
Terminals LAKT01 --- 4
Terminals LAKT03 --- 7
Wire Ties LAKT01 --- 3
Wire Ties LAKT03 --- 4
Mount ing Bracket
LAKT01 & LAKT03
0121M00047 1
Inst allation Instruc tions IO-826 1
KIT INSTALLATION
Figure 1A
1. Disconnect all sources of power to the unit.
2. Remove access panels to blower compartment and control
box.
3. Using the screws provided, secure the control to the mounting bracket provided (see Figure 1A). Secure the new assembly on the condenser evaporator partition panel in the
blower section of the unit.
For 3 to 12.5 ton light commercial, secure 2 inches below
the hole where the fan and compressor leads exit the blower
section. See Figure 1B.
For 15 to 20 ton light commercial, secure to the right of
the capacitor assembly, located on the partition panel. See
Figure 1C.
For residential 3 phase models, secure ICM to the control
panel. See Figure 1D. (Do not use mounting bracket in this
application.)
NOTE: Do not install the control in areas where the mounting screws can come into contact with the condenser coil or
tubing.
Figure 1B
Figure 1C
2
Figure 1D
4. Connect the electrical wiring as shown in the wiring diagrams
on pages 5 - 8.
5. For light commercial, install temperature probe between
the fins, at the middle to upper section of the condenser coil
(see Figure 2).
For Residential Split Condensers and heat pumps,
install the probe on the liquid line before the filter/dryer.
Ensure the probe body is completely attached to the body of
the liquid tube before securing with the tape (See Figure 3).
LAKT01 (3 thru 6 tons)
Wiring Diagram 0140M00108 - use with AC and HP units, three
phase and single phase application.
For residential 3 phase condensers, connect wires per 0140M00108
wiring diagram.
For residential 3 phase heat pumps, connect wires per 0140R00167
wiring diagram.
LAKT03 (7 ½ tons thru 12 ½ tons)
Wiring Diagram 0140L03520A - use with AC and HP units, three
phase application.
LAKT03 (15 tons and up)
Wiring Diagram 0140L01008 - use with AC units.
(a) Wiring diagrams show the controller connection for 120/
277 volts supply. For 480/600 volts application, connect
the power supply leads to the 480/600 VAC terminal.
NOTE: The low ambient kit is pre-set at the factory and re-
quires no further adjustment. Altering the setting may
greatly reduce motor life.
Figure 2
6. Connect the probe leads to the terminal marked PROBE S1.
For systems with multiple refrigeration circuits, attach the
second probe to PROBE S2 or PROBE S3. The LAKT03 is
shipped with two probes. See control instruction manual for
multiple probe connection and operation.
WIRING DIAGRAMS AND APPLICATION
The LAKT01 and LAKT03 kits are shipped with wiring diagram
included. Affix the low ambient kit wiring diagram on the control
box door next to the unit wiring diagram.
Figure 3
WIRING PROCEDURE FOR LAKT01 (REMOTE AC & HP):
1. Connect the wiring as shown on page 6.
2. Attach supplied wiring diagram adjacent to existing wiring
diagram. Follow the system calibration instruction provided
in the control instruction manual for sleeve bearing motors.
Verify wiring is correct.
3. Use provided wire ties to secure wire leads away from all
moving parts and warm refrigeration tubing.
4. Reinstall access panel.
5. Restore power and verify system operation.
3
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