Fujitsu FO2416RTJNAA User manual

R-410A HEAT PUMP
OUTDOOR UNITS
92-105074-15-01 ( / ) Printed in USA
[ ] Indicates metric conversions.
Do not destroy this manual.
Please read carefully and
keep in a safe place for future
reference by a serviceman.
WARNING
THESE INSTRUCTIONS
ARE INTENDED AS AN AID
TO QUALIFIED, LICENSED
SERVICE PERSONNEL FOR
PROPER INSTALLATION,
ADJUSTMENT, AND
OPERATION OF THIS UNIT.
READ THESE INSTRUCTIONS
THOROUGHLY BEFORE
ATTEMPTING INSTALLATION
OR OPERATION. FAILURE
TO FOLLOW THESE
INSTRUCTIONS MAY RESULT
IN IMPROPER INSTALLATION,
ADJUSTMENT, SERVICE,
OR MAINTENANCE
POSSIBLY RESULTING IN
FIRE, ELECTRICAL SHOCK,
PROPERTY DAMAGE,
PERSONAL INJURY, OR
DEATH.
INSTALLATION INSTRUCTIONS
16 SEER TWO-STAGE
NON-COMMUNICATING HEAT PUMP
WARNING:
RECOGNIZE THIS SYMBOL
AS AN INDICATION OF
IMPORTANT SAFETY
INFORMATION
NOTE: Actual unit appearance
may vary.

2
Contents
CONTENTS
1.0 IMPORTANT SAFETY INFORMATION.......................................................3
2.0 GENERAL INFORMATION.....................................................................4-5
Ϯϭ/ŶƚƌŽĚƵĐƟŽŶϰ
ϮϮ/ŵƉŽƌƚĂŶĐĞŽĨĂYƵĂůŝƚLJ/ŶƐƚĂůůĂƟŽŶϰ
Ϯϯ^LJƐƚĞŵ^ŝnjŝŶŐĂŶĚ^ĞůĞĐƟŽŶϰ
Ϯϰ/ŵƉŽƌƚĂŶĐĞŽĨWƌŽƉĞƌ/ŶĚŽŽƌKƵƚĚŽŽƌDĂƚĐŚͲhƉƐϱ
ϮϱŚĞĐŬŝŶŐWƌŽĚƵĐƚZĞĐĞŝǀĞĚϱ
ϮϲĸĐŝĞŶĐLJdĞƐƟŶŐEŽƟĐĞϱ
ϮϳŽŵƉƌĞƐƐŽƌƌĞĂŬͲ/ŶEŽƟĐĞϱ
3.0 UNIT SPECIFICATIONS..........................................................................6-7
ϯϭDŽĚĞůEƵŵďĞƌEŽŵĞŶĐůĂƚƵƌĞϲ
ϯϮǀĂŝůĂďůĞDŽĚĞůƐϲ
ϯϯůĞĐƚƌŝĐĂůĂŶĚWŚLJƐŝĐĂůĂƚĂϳ
4.0 INSTALLATION...................................................................................8-25
ϰϭdŽŽůƐΘZĞĨƌŝŐĞƌĂŶƚϴ
ϰϭϭdŽŽůƐZĞƋƵŝƌĞĚĨŽƌ/ŶƐƚĂůůŝŶŐΘ^ĞƌǀŝĐŝŶŐZͲϰϭϬDŽĚĞůƐϴ
ϰϭϮ^ƉĞĐŝĮĐĂƟŽŶƐŽĨZͲϰϭϬϴ
ϰϭϯYƵŝĐŬZĞĨĞƌĞŶĐĞ'ƵŝĚĞĨŽƌZͲϰϭϬϴ
ϰϮŚŽŽƐŝŶŐĂ>ŽĐĂƟŽŶϵ
ϰϮϭůůŽǁĂďůĞůĞĂƌĂŶĐĞƐϵ
ϰϮϮKƉĞƌĂƟŽŶĂů/ƐƐƵĞƐZĞůĂƚĞĚƚŽhŶŝƚ>ŽĐĂƟŽŶϵ
ϰϮϯŽƌƌŽƐŝǀĞŶǀŝƌŽŶŵĞŶƚƐϭϬ
ϰϮϰƵƐƚŽŵĞƌ^ĂƟƐĨĂĐƟŽŶ/ƐƐƵĞƐϭϬ
ϰϯDŽƵŶƟŶŐhŶŝƚϭϬ
ϰϯϭhŶŝƚͲDŽƵŶƟŶŐDĞƚŚŽĚƐϭϬ
ϰϯϮ,ŝŐŚtŝŶĚĂŶĚ^ĞŝƐŵŝĐdŝĞͲŽǁŶDĞƚŚŽĚƐϭϬ
ϰϯϯůĞǀĂƟŶŐhŶŝƚϭϭ
ϰϯϰ'ƌŽƵŶĚ^ŶŽǁĞƉƚŚdĂďůĞϭϭ
ϰϰZĞĨƌŝŐĞƌĂŶƚ>ŝŶĞ^Ğƚ^ĞůĞĐƟŽŶϭϮ
ϰϰϭZĞƉůĂĐŝŶŐdžŝƐƟŶŐ^LJƐƚĞŵƐϭϮ
ϰϰϮ>ŝŶĞ^Ğƚ>ĞŶŐƚŚĂŶĚ&ŝƫŶŐ>ŽƐƐĞƐϭϮ
ϰϰϯ>ŝƋƵŝĚ>ŝŶĞ^ĞůĞĐƟŽŶϭϮ
ϰϰϰsĂƉŽƌ>ŝŶĞ^ĞůĞĐƟŽŶϭϱ
ϰϰϱ>ŽŶŐ>ŝŶĞ>ĞŶŐƚŚŽŶƐŝĚĞƌĂƟŽŶƐϭϱ
ϰ  ϰ  ϱ  ϭ ĞƚĞƌŵŝŶŝŶŐŝĨ>ŽŶŐ>ŝŶĞ^Ğƚ>ĞŶŐƚŚZĞƋƵŝƌĞŵĞŶƚƐƉƉůLJϭϱ
ϰϰϱϮKŝůZĞƚƵƌŶƚŽŽŵƉƌĞƐƐŽƌϭϱ
ϰϰϱϯZĞĨƌŝŐĞƌĂŶƚDŝŐƌĂƟŽŶƵƌŝŶŐKīLJĐůĞƌĂŶŬĐĂƐĞ
,ĞĂƚĞƌZĞƋƵŝƌĞŵĞŶƚƐϭϱ
ϰϰϱϰDĂdžŝŵƵŵ>ŝƋƵŝĚWƌĞƐƐƵƌĞƌŽƉϭϱ
ϰϰϱϱ>ŝƋƵŝĚ>ŝŶĞZĞĨƌŝŐĞƌĂŶƚ&ůĂƐŚŝŶŐϭϱ
ϰϰϱϲŽŵƉƌĞƐƐŽƌKŝů>ĞǀĞůĚũƵƐƚŵĞŶƚĨŽƌ>ŽŶŐ>ŝŶĞ
^ĞƚƉƉůŝĐĂƟŽŶƐ ........................................................16
ϰϰϱϳĂƉĂĐŝƚLJ>ŽƐƐĞƐϭϲ
ϰϱ>ŝŶĞ^Ğƚ/ŶƐƚĂůůĂƟŽŶϭϳ
ϰϱϭ/ŵƉŽƌƚĂŶƚdƵďŝŶŐ/ŶƐƚĂůůĂƟŽŶWƌĂĐƟĐĞƐϭϳ
ϰϱϮZĞůĂƟǀĞ>ŽĐĂƟŽŶŽĨ/ŶĚŽŽƌĂŶĚKƵƚĚŽŽƌhŶŝƚƐϭϴ
ϰϱϮϭ/ŶĚŽŽƌĂŶĚKƵƚĚŽŽƌhŶŝƚEĞĂƌ^ĂŵĞ>ĞǀĞůϭϴ
ϰϱϮϮKƵƚĚŽŽƌhŶŝƚĞůŽǁ/ŶĚŽŽƌhŶŝƚϭϵ
ϰϱϮϯKƵƚĚŽŽƌhŶŝƚďŽǀĞ/ŶĚŽŽƌhŶŝƚϮϬ
ϰϱϯdƵďŝŶŐŽŶŶĞĐƟŽŶƐϮϭ
ϰϲ/ŶŝƟĂů>ĞĂŬdĞƐƟŶŐϮϮ
ϰϳǀĂĐƵĂƟŽŶ .........................................................................................22
ϰϴ&ŝŶĂů>ĞĂŬdĞƐƟŶŐϮϮ
ϰϵŽŶƚƌŽůtŝƌŝŶŐ...................................................................................23
ϰϭϬdLJƉŝĐĂůŽŶƚƌŽůtŝƌŝŶŐŽŶŶĞĐƟŽŶƐϮϯ
ϰϭϭWŽǁĞƌtŝƌŝŶŐϮϱ
ϰϭϮ'ƌŽƵŶĚŝŶŐϮϱ
5.0 SYSTEM START-UP AND REFRIGERANT CHARGING...........................26-29
ϱϭ^LJƐƚĞŵ^ƚĂƌƚͲhƉKǀĞƌǀŝĞǁϮϲ
ϱϮ/ŶŝƟĂůWŽǁĞƌhƉϮϲ
ϱϯsĞƌŝĨLJŝŶŐ/ŶĚŽŽƌŝƌͲ&ůŽǁϮϲ
ϱϰZĞĨƌŝŐĞƌĂŶƚŚĂƌŐŝŶŐϮϳ
ϱϰϭD Ğ ĂƐƵƌĞŵĞŶƚĞǀŝĐĞ^ĞƚhƉϮϳ
ϱϰϮWƌĞůŝŵŝŶĂƌLJŚĂƌŐŝŶŐďLJtĞŝŐŚƚϮϳ
ϱϰϯWƌĞůŝŵŝŶĂƌLJŚĂƌŐŝŶŐďLJWƌĞƐƐƵƌĞϮϴ
ϱϰϰ&ŝŶĂůŚĂƌŐŝŶŐďLJ>ŝƋƵŝĚ^ƵďĐŽŽůŝŶŐϮϴ
ϱϰϱZͲϰϭϬdĞŵƉĞƌĂƚƵƌĞWƌĞƐƐƵƌĞŚĂƌƚϮϵ
ϱϱ  ŽŵƉůĞƟŶŐ /ŶƐƚĂůůĂƟŽŶ Ϯϵ
6.0 SEQUENCE OF OPERATION..........................................................30-31
ϲϭŽŽůŝŶŐDŽĚĞϯϬ
ϲϮ,ĞĂƟŶŐDŽĚĞϯϬ
ϲϯ^ƵƉƉůĞŵĞŶƚĂůůĞĐƚƌŝĐ,ĞĂƚƵƌŝŶŐ,ĞĂƟŶŐDŽĚĞϯϬ
ϲϰƵĂů&ƵĞůƉƉůŝĐĂƟŽŶͲ,ĞĂƟŶŐDŽĚĞϯϬ
ϲϱĞŵĂŶĚĞĨƌŽƐƚ
.................................................................................. ...........31
7.0 COMPONENTS AND CONTROLS......................................................32-34
ϳϭĞŵĂŶĚĞĨƌŽƐƚŽŶƚƌŽůϯϮ
ϳϮŽŵƉƌĞƐƐŽƌ .......................................................................................33
ϳϯ&ĂŶDŽƚŽƌ .........................................................................................33
ϳϰKƵƚĚŽŽƌ&ĂŶϯϯ
ϳϱŽŵƉƌĞƐƐŽƌ^ƵŵƉdŚĞƌŵŝƐƚŽƌϯϯ
ϳϲŽŵƉƌĞƐƐŽƌŽŶƚĂĐƚŽƌϯϯ
ϳϳZĞǀŝƐŝŶŐsĂůǀĞϯϯ
ϳϴ  ŚĂƌŐĞŽŵƉĞŶƐĂƚŽƌ ϯϯ
ϳϵŝƐĐŚĂƌŐĞ>ŝŶĞDƵŋĞƌϯϯ
ϳϭϬdŚĞƌŵĂůdžƉĂŶƐŝŽŶsĂůǀĞ;dysͿϯϰ
ϳϭϭŽŵƉƌĞƐƐŽƌƌĂŶŬĐĂƐĞ,ĞĂƚĞƌϯϰ
ϳϭϮ,ŝŐŚĂŶĚ>ŽǁWƌĞƐƐƵƌĞŽŶƚƌŽůƐϯϰ
ϳϭϯŽŵƉƌĞƐƐŽƌ,ĂƌĚ^ƚĂƌƚŽŵƉŽŶĞŶƚƐϯϰ
8.0 ACCESSORIES..........................................................................................35
ϴϭ
ŽŵƉƌĞƐƐŽƌdŝŵĞĞůĂLJ ϯϱ
ϴϮ>ŽǁŵďŝĞŶƚŽŶƚƌŽůϯϱ
ϴϯŽŵƉƌĞƐƐŽƌ,ĂƌĚ^ƚĂƌƚ<ŝƚϯϱ
ϴϰ,ĞĂƚWƵŵƉdŚĞƌŵŽƐƚĂƚtĂƌŶŝŶŐ>ŝŐŚƚ ϯϱ
ϴϱ,ĞĂƚWƵŵƉdŚĞƌŵŽƐƚĂƚtĂƌŶŝŶŐ>ŝŐŚƚϯϱ
ϴϲZĞŵŽƚĞKƵƚĚŽŽƌdĞŵƉĞƌĂƚƵƌĞ^ĞŶƐŽƌϯϱ
ϴϳŽŵƉƌĞƐƐŽƌ^ŽƵŶĚŶĐůŽƐƵƌĞϯϱ
9.0 DIAGNOSTICS AND TROUBLESHOOTING.........................................36-47
ϵϭĞĨƌŽƐƚŽŶƚƌŽůŝĂŐŶŽƐƟĐŽĚĞƐϯϲ
ϵϮKƵƚĚŽŽƌŵďŝĞŶƚĂŶĚŽŝů^ĞŶƐŽƌdĞŵƉĞƌĂƚƵƌĞ
sƐZĞƐŝƐƚĂŶĐĞdĂďůĞ ...........................................................................36
ϵϯůĞĐƚƌŝĐĂůŚĞĐŬƐ&ůŽǁĐŚĂƌƚϯϳ
ϵϰŽŽůŝŶŐDĞĐŚĂŶŝĐĂůŚĞĐŬƐ&ůŽǁĐŚĂƌƚ ϯϴ
ϵϱ,ĞĂƟŶŐDĞĐŚĂŶŝĐĂůŚĞĐŬƐ&ůŽǁĐŚĂƌƚϯϵ
ϵϲĞĨƌŽƐƚDĞĐŚĂŶŝĐĂůŚĞĐŬƐ&ůŽǁĐŚĂƌƚ ϰϬ
ϵϳĞĨƌŽƐƚdĞƐƚDŽĚĞϰϬ
ϵϴ'ĞŶĞƌĂůdƌŽƵďůĞƐŚŽŽƟŶŐ'ƵŝĚĞϰϭ
ϵϵ^ĞƌǀŝĐĞŶĂůLJnjĞƌŚĂƌƚƐϰϮ
ϵϭϬdƌŽƵďůĞƐŚŽŽƟŶŐdŝƉƐϰϳ
10.0 OUTDOORUNITMAINTENANCE.........................................................48
ϭϬϭ KƵƚĚŽŽƌ Žŝů ůĞĂŶŝŶŐ ϰϴ
ϭϬϮ ĂďŝŶĞƚ ůĞĂŶŝŶŐ ĂŶĚ ĂƌĞ ϰϴ
ϭϬϯ DŽƚŽƌ >ƵďƌŝĐĂƟŽŶ ϰϴ
ϭϬϰ ZĞƉůĂĐĞŵĞŶƚ WĂƌƚƐ ϰϴ
11.0 WIRINGDIAGRAM...........................................................................49-50
ϭϭϭϮĂŶĚϯdŽŶƐDŽĚĞůƐǁŝƚŚD&ĂŶDŽƚŽƌϰϵ
ϭϭϮϰĂŶĚϱdŽŶƐDŽĚĞůƐǁŝƚŚW^&ĂŶDŽƚŽƌϱϬ

3
1.0 IMPORTANT SAFETY INFORMATION
WARNINGS:
• These instructions are intended as an aid to
qualified, licensed service personnel for proper
installation, adjustment, and operation of this unit.
Read these instructions thoroughly before attempting
installation or operation. Failure to follow these
instructions may result in improper installation,
adjustment, service, or maintenance possibly
resulting in fire, electrical shock, property
damage, personal injury, or death.
• The unit must be permanently grounded. Failure
to do so can cause electrical shock resulting in
severe personal injury or death.
• Turn off electric power at the fuse box or service
panel before making any electrical connections.
• Complete the ground connection before making
line voltage connections. Failure to do so can
result in electrical shock, severe personal injury,
or death.
• Disconnect all power to unit before starting
maintenance. Failure to do so can cause
electrical shock resulting in severe personal
injury or death.
• Never assume the unit is properly wired and/or
grounded. Always test the unit cabinet with a
noncontact voltage detector available at most
electrical supply houses or home centers before
removing access panels or coming into contact
with the unit cabinet.
• Do not use oxygen to purge lines or pressurize
system for leak test. Oxygen reacts violently with
oil, which can cause an explosion resulting in
severe personal injury or death.
• The top of the scroll compressor shell is hot.
Touching the compressor top may result in serious
personal injury.
• 7KHPDQXIDFWXUHU·VZDUUDQW\GRHVQRWFRYHU
any damage or defect to the unit caused by the
attachment or use of any components, accessories,
or devices (other than those authorized by the
PDQXIDFWXUHULQWRRQWRRULQFRQMXQFWLRQZLWK
the heat pump. You should be aware that the
use of unauthorized components, accessories,
or devices may adversely affect the operation
of the heat pump and may also endanger life
and property. The manufacturer disclaims any
responsibility for such loss or injury resulting
from the use of such unauthorized components,
accessories, or devices.
CAUTIONS:
• R-410A systems operate at approximately 60% higher
pressures (1.6 times) than R-22 systems. Do not use
R-22 service equipment or components on R-410A
HTXLSPHQW8VHDSSURSULDWHFDUHZKHQXVLQJWKLV
refrigerant. Failure to exercise care may result in
equipment damage or personal injury.
• 2QO\PDWFKWKLVRXWGRRUXQLWZLWKDPDWFKHGLQGRRU
FRLORUDLUKDQGOHUDSSURYHGIRUXVHZLWKWKLVRXWGRRU
XQLWSHUWKHXQLWPDQXIDFWXUHU·VVSHFLILFDWLRQVKHHW
7KHXVHRIXQPDWFKHGFRLOVRUDLUKDQGOHUZLOOOLNHO\
UHVXOWLQDFKDUJHLPEDODQFHEHWZHHQWKHFRROLQJ
DQGKHDWLQJPRGHVZKLFKFDQFDXVHXQVDWLVIDFWRU\
RSHUDWLRQLQFOXGLQJDKLJKSUHVVXUHVZLWFKORFNRXW
condition.
• Only use indoor coils approved for use on R-410A
V\VWHPV$Q5FRLOZLOOKDYHD7;9RUIL[HG
restrictor device that is not designed to operate
SURSHUO\LQDQ5$V\VWHPDQGZLOOUHVXOWLQ
serious operational issues. The R-22 coil could also
FRQWDLQPLQHUDORLOZKLFKLVLQFRPSDWLEOHZLWKWKH
POE oil used in R-410A systems and could result in
UHOLDELOLW\LVVXHVZLWKWKHFRPSUHVVRUDQG7;9V
• When coil is installed over a finished ceiling and/or
living area, it is required that a secondary sheet metal
condensate pan be constructed and installed under
the entire unit. Failure to do so can result in property
damage.
• The compressor has an internal overload protector.
8QGHUVRPHFRQGLWLRQVLWFDQWDNHXSWRKRXUVIRU
WKLVRYHUORDGWRUHVHW0DNHVXUHRYHUORDGKDVKDG
time to reset before condemning the compressor.
• UNIT MAY START SUDDENLY AND WITHOUT
WARNING. A flashing red light on the heat pump/
defrost control indicates a call for unit operation is
present at the heat pump/defrost control. The heat
SXPSGHIURVWFRQWUROZLOODWWHPSWWRVWDUWXQLWDIWHU
WKHDQWLVKRUWF\FOHWLPHH[SLUHVZKHQDKLJKRUORZ
SUHVVXUHFRQWURODXWRPDWLFDOO\UHVHWVRUZKHQWKH
KHDWSXPSGHIURVWFRQWUROH[LWVWKHORFNRXWPRGHDV
the temperature rises above 5°F [-15°C].
WARNING:
Single-pole contactors are used on all standard
single-phase units through 5 tons. Caution must
be exercised when servicing as only one leg of the
power supply is broken by the contactor.
Safety

4
2.0 GENERAL INFORMATION
WARNING:
Improper installation, or installation not made in
accordance with these instructions, can result
in unsatisfactory operation and/or dangerous
conditions and can cause the related warranty
not to apply.
2.1 Introduction
The information contained in this manual has
been prepared to assist in the proper installation,
operation, and maintenance of the air conditioning
system.
5HDGWKLVPDQXDODQGDQ\LQVWUXFWLRQVSDFNDJHG
ZLWKVHSDUDWHHTXLSPHQWUHTXLUHGWRPDNHXSWKH
V\VWHPSULRUWRLQVWDOODWLRQ+RPHRZQHUVKRXOG
retain this manual for future reference.
2.2 Importance of
Quality Installation
A quality installation is critical to assure safety,
reliability, comfort, and customer satisfaction. Strict
adherence to applicable codes, the information in
this installation manual, the outdoor unit installation
manual, and the thermostat installation manual
DUHNH\WRDTXDOLW\LQVWDOODWLRQ5HDGWKHHQWLUH
instruction manuals before starting the installation.
IMPORTANT: This product has been designed
and manufactured to meet certified AHRI capacity
DQGHIILFLHQF\UDWLQJVZLWKWKHDSSURSULDWHRXWGRRU
XQLWV+RZHYHUSURSHUUHIULJHUDQWFKDUJHSURSHU
DLUIORZDQGUHIULJHUDQWOLQHVL]LQJDUHFULWLFDOWR
achieve optimum capacity and efficiency and to
assure reliable operation. Installation of this
SURGXFWVKRXOGIROORZWKHPDQXIDFWXUHU·VUHIULJHUDQW
FKDUJLQJDQGDLUIORZLQVWUXFWLRQVORFDWHGLQWKLV
installation manual and the charging chart label
affixed to the outdoor unit. Failure to confirm
SURSHUFKDUJHDQGDLUIORZPD\UHGXFHHQHUJ\
efficiency and shorten equipment life.
The equipment has been evaluated in accordance
ZLWKWKH&RGHRI)HGHUDO5HJXODWLRQV&KDSWHU;;
Part 3280.
,QVWDOOWKHXQLWLQDFFRUGDQFHZLWKDSSOLFDEOH
national, state, and local codes. Latest editions
are available from: “National Fire Protection
$VVRFLDWLRQ,QF%DWWHU\PDUFK3DUN4XLQF\0$
02269.” These publications are:
• ANSI/NFPA No. 70-(Latest Edition) National
Electrical Code.
• NFPA90A Installation of Air Conditioning and
9HQWLODWLQJ6\VWHPV
1)3$%,QVWDOODWLRQRIZDUPDLUKHDWLQJDQGDLU
conditioning systems.
,QVWDOOWKHLQGRRUXQLWLQVXFKDZD\DVWRDOORZ
QHFHVVDU\DFFHVVWRWKHFRLOILOWHUUDFNDQGEORZHU
control compartment.
2.3 System Sizing and
Selection
Before specifying any heat pump equipment,
a survey of the structure and a heat loss and
heat gain calculation must be made. A heat loss
calculation involves identifying all surfaces and
openings that lose heat to the surrounding air
and quantifying that heat loss. A cooling heat
JDLQFDOFXODWLRQPDNHVVLPLODUPHDVXUHPHQWV
and determines the amount of heat needed
to be removed. A heat gain calculation also
calculates the extra heat load caused by sunlight
and by humidity removal. These factors must be
considered before selecting a heat pump system to
provide year-round comfort. The Air Conditioning
Contractors of America (ACCA) Manual J method
of load calculation is one recognized procedure for
determining the heating and cooling load.
After the proper equipment combination has
been selected, satisfying both sensible and
latent requirements, the system must be properly
installed. Only then can the system provide the
FRPIRUWLWZDVGHVLJQHGWRSURYLGH
There are several factors that installers must
consider.
• Outdoor unit location
• ,QGRRUXQLWEORZHUVSHHGDQGDLUIORZ
• Proper equipment evacuation
• Supply and return air duct design and sizing
• Refrigerant charge
• System air balancing
• Diffuser and return air grille location and sizing
IMPORTANT: Excessive use of
HOERZVLQWKHUHIULJHUDQWOLQHVHWFDQSURGXFH
H[FHVVLYHSUHVVXUHGURS)ROORZLQGXVWU\
best practices for installation. Installation
and commissioning of this equipment is to
EHSHUIRUPHGE\WUDLQHGDQGTXDOLILHG+9$&
professionals. For technical assistance, contact
your Distributor Service Coordinator.
General Information

5
2.4 Importance of
Proper Indoor/Outdoor
Match-Ups
To assure many years of reliable operation
and optimum customer comfort and to assure
WKHRXWGRRUXQLWZDUUDQW\UHPDLQVYDOLGDQDLU
handler model or indoor coil/furnace combination
should be selected that is properly matched to the
outdoor unit. This is especially critical for heat
pump systems to assure proper refrigerant charge
EDODQFHEHWZHHQWKHFRROLQJDQGKHDWLQJPRGHV
The recommended approach is to select an air-
handler or indoor coil and gas furnace that has an
$+5,PDWFKZLWKWKHRXWGRRUXQLW5HIHUWRWKH
$+5,GLUHFWRU\DWZZZDKULGLUHFWRU\RUJWRFRQILUP
the air-handler and outdoor unit are a certified
combination in the AHRI Directory.
2.5 Checking Product
Received
Upon receiving unit, inspect it for any shipping
damage. Claims for damage, either apparent or
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VKLSSLQJFRPSDQ\&KHFNPRGHOQXPEHUHOHFWULFDO
characteristics, and accessories to determine if they
DUHFRUUHFW&KHFNV\VWHPFRPSRQHQWVLQGRRUFRLO
RXWGRRUXQLWDLUKDQGOHUIXUQDFHHWFWRPDNHVXUH
they are properly matched.
2.6 Efficiency Testing
Notice
For purposes of verifying or testing efficiency ratings,
the test procedure in Title 10 APPENDIX M to Subpart
B of Part 430 (Uniform Test Method for Measuring the
Energy Consumption of Central Air Conditioners and Heat
Pumps) and the clarifying provisions provided in the AHRI
Operations Manual 210/240 that were applicable at the
date of manufacture should be used for test set up and
performance .
2.7 Compressor
Break-In Notice
Prior to agency testing, the unit must be run for 20
hours at 115ºF [46.1ºC] outdoor ambient temperature
ZLWK)>&@GU\EXOE)>&@ZHWEXOE
LQGRRUDPELHQWWHPSHUDWXUHWREUHDNWKHFRPSUHVVRU
in.
2.0 GENERAL INFORMATION
General Information

6
3.0 UNIT SPECIFICATIONS
6((5
 6((5
$- %
0$-256(5,(6
$ ),567'(6,*16(5,(6
% 6(&21'6(6,*16(5,(6
021,56(5,(6
$ ),567'(6,*16(5,(6
% 6(&21''(6,*16(5,(6+3/3&
&21752/6
1 121&20081,&$7,1*
92/7$*(
- /3+
352'8&7&$7(*25<
& $&
5 +($73803
7<3(
7 7:267$*(
&$3$&,7<
 %78
 %78
 %78
 %78
%5$1'
)2 )8-,768
)2 & 9 &
3.1 Model Number Nomenclature
3.2 Available Models
Specifications
FO2416RTJNAA
FO3616RTJNAA
FO4816RTJNAA
FO6016RTJNAA

7
3.0 UNIT SPECIFICATIONS
Specifications
3.3 Electrical and Physical Data
Factory
Charge Minimum
Per Circuit Circuit
Regional
Standard
Statement
oz. (g) RLA LRA FLA HP Ampacity MAX MIN High Low Mfr. Part No. Codes
Model Number
(A)
(P)
Volts
(B)
Phase
(C)
Hertz
(D)
(E) (F) (G) (H) (J) (K) (L) (M) (N) (**)
(S)
FO2416RTJNAA 137 (3884) 208/230 1 60 13.0/13.0 58.3 2.8 1/3 20/20 30/30 25/25 550 (3792) 250 (1723) COPELAND 55-23156-47 9195 None
FO3616RTJNAA 156 (4423) 208/230 1 60 17.0/17.0 83 2.8 1/3 25/25 40/40 30/30 550 (3792) 250 (1723) COPELAND 55-23156-36 9196 None
FO4816RTJNAA 196 (5557) 208/230 1 60 23.6/23.6 104 1.4 1/4 31/31 50/50 40/40 550 (3792) 250 (1723) COPELAND 55-23156-37 9197 None
FO6016RTJNAA 242 (6861) 208/230 1 60 28.8/28.8 152.9 1.4 1/4 38/38 60/60 45/45 550 (3792) 250 (1723) COPELAND 55-23156-34 9198 None
Compressor Fan Motor Compressor
Circuit Breaker Size
Fuse or HACR
PSIG (kPa)
Design Pressure
DIMENSIONALS
2-STAGE 16 SEER
HEAT PUMP
24 36 48, 60
31 (787) 35 (889) 45 (1143)
33.75 (857) 33.75 (857) 35.75 (908)
33.75 (857) 33.75 (857) 35.75 (908)
Height “H” inches (mm)
Length “L” inches (mm)
Width “W” inches (mm)
AIR INLET LOUVERS ALLOW
6” [152mm] Min. OF CLEARANCE ALL SIDES
12” [305mm] RECCOMMENDED
SERVICE PANELS/
INLET CONNECTIONS / HIGH & LOW
VOLTAGE ACCESS
ALLOW 24”[ 610 mm] OF CLEARANCE
ST-A1226-23-00
“H”
“W”
A
I
R
D
I
S
C
H
A
R
G
E“L”
ALLOW 60" [1524mm] OF
CLEARANCE
SERVICE PANELS/
INLET CONNECTIONS /
HIGH & LOW VOLTAGE
ACCESS ALLOW
24" [610 mm] OF
CLEARANCE
AIR INLET LOUVERS ALLOW
6" [152 mm] OF CLEARANCE ALL SIDES
12" [305 mm] RECOMMENDED
NOTE: Actual unit
appearance may vary.

8
Tools
4.0 INSTALLATION
4.1 Tools and Refrigerant
4.1.1 Tools Required for
Installing and Servicing
R-410A Models
Manifold Sets:
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²8SWR36,*>N3D@/RZ6LGH
²36,*>N3D@/RZ6LGH5HWDUG
Manifold Hoses:
²6HUYLFH3UHVVXUH5DWLQJRI36,*>N3D@
Recovery Cylinders:
²36,*>N3D@3UHVVXUH5DWLQJ
– Dept. of Transportation 4BA400 or BW400
CAUTION: R-410A systems operate
at higher pressures than R-22 systems. Do not use
R-22 service equipment or components on R-410A
equipment.
4.1.2 Specifications of R-410A
Application: R-410A is not a drop-in
replacement for R-22. Equipment designs must
accommodate its higher pressures. It cannot be
retrofitted into R-22 heat pumps.
Physical Properties: R-410A has an atmospheric
boiling point of -62.9°F [-52.7°C] and its saturation
SUHVVXUHDW)>&@LVSVLJ>N3D@
Composition: R-410A is a near-azeotropic
PL[WXUHRIE\ZHLJKWGLIOXRURPHWKDQH+)&
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125).
Pressure: The pressure of R-410A is
approximately 60% (1.6 times) greater than
R-22. Recovery and recycle equipment, pumps,
KRVHVDQGWKHOLNHPXVWKDYHGHVLJQSUHVVXUH
ratings appropriate for R-410A. Manifold sets need
to range up to 800 psig [5,516 kPa] high-side and
250 psig [1,724 kPa] low-side with a 550 psig
[3,792 kPa] low-side retard. Hoses need to have
a service pressure rating of 800 psig [5,516 kPa].
Recovery cylinders need to have a 400 psig [2,758
kPa] service pressure rating, DOT 4BA400 or DOT
BW400.
Combustibility: At pressures above 1
atmosphere, a mixture of R-410A and air can
become combustible. R-410A and air should
never be mixed in tanks or supply lines or
be allowed to accumulate in storage tanks.
Leak checking should never be done with a
mixture of R-410A and air. /HDNFKHFNLQJFDQ
EHSHUIRUPHGVDIHO\ZLWKQLWURJHQRUDPL[WXUHRI
R-410A and nitrogen.
4.1.3 Quick-Reference Guide
for R-410A
• R-410A refrigerant operates at approximately
60% higher pressure (1.6 times) than R-22.
Ensure that servicing equipment is designed to
RSHUDWHZLWK5$
• R-410A refrigerant cylinders are light rose in
color.
5$DVZLWKRWKHU+)&VLVRQO\FRPSDWLEOH
ZLWK32(RLOV
9DFXXPSXPSVZLOOQRWUHPRYHPRLVWXUHIURP
POE oil used in R-410A systems.
5$V\VWHPVDUHWREHFKDUJHGZLWKOLTXLG
refrigerants. Prior to March 1999, R-410A
refrigerant cylinders had a dip tube. These
F\OLQGHUVVKRXOGEHNHSWXSULJKWIRUHTXLSPHQW
charging. Post-March 1999 cylinders do not have
a dip tube and should be inverted to ensure liquid
charging of the equipment.
• Do not install a suction line filter drier in the liquid line.
$IDFWRU\DSSURYHGELIORZOLTXLGOLQHILOWHUGULHU
LVVKLSSHGZLWKHYHU\XQLWDQGPXVWEHLQVWDOOHG
in the liquid line at the time of installation. Only
manufacturer-approved liquid line filter driers
VKRXOGEHXVHG)LOWHUGULHUVPXVWKDYHDZRUNLQJ
SUHVVXUHUDWLQJRIDWOHDVWSVLJ>N3D@
7KHILOWHUGULHUZLOORQO\KDYHDGHTXDWHPRLVWXUH
holding capacity if the system is properly
evacuated.
• Desiccant (drying agent) must be compatible for
POE oils and R-410A refrigerant.
Ambient and Tube
Thermometers
Manifold
Gauge
Set
Brazing
Rods
Torch Nitrogen
Reclaimer
Recovery
Cylinders
Allen Wrench
Crescent Wrench

9
4.2 Choosing a Location
4.2.1 Allowable Clearances
WRVLGHLQWDNHORXYHUV
24" to service access panels
60" vertical for fan discharge
,IVSDFHOLPLWDWLRQVH[LVWWKHIROORZLQJFOHDUDQFHV
ZLOOKDYHPLQLPDOLPSDFWWRFDSDFLW\DQGHIILFLHQF\
and are permitted:
Single-Unit Applications: Minimum of 6" to side
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for fan discharge or the 24" [61.0 cm] service
clearances.
Multiple-Unit Applications: For units positioned
next to each other, a minimum of 6" [15.2 cm]
FOHDUDQFHEHWZHHQXQLWVLVUHFRPPHQGHGIRU
and 2 ton models and 9" [22.9 cm] for 2.5 ton to
5 ton models. Do not reduce the 60" [152.4 cm]
for fan discharge or the 24" [61.0 cm] service
clearances.
IMPORTANT: Consult local and
national building codes and ordinances for special
LQVWDOODWLRQUHTXLUHPHQWV)ROORZLQJORFDWLRQ
LQIRUPDWLRQZLOOSURYLGHORQJHUOLIHDQGVLPSOLILHG
servicing of the outdoor heat pump.
NOTICE: These units must be installed
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modifications made, to the discharge grille.
0RGLILFDWLRQVZLOODIIHFWSHUIRUPDQFHRURSHUDWLRQ
4.2.2 Operational Issues
Related to Unit Location
IMPORTANT: Locate the unit in a
PDQQHUWKDWZLOOQRWSUHYHQWLPSDLURUFRPSURPLVH
the performance of other equipment installed
in proximity to the unit. Maintain all required
minimum distances to gas and electric meters,
dryer vents, and exhaust and inlet openings. In
WKHDEVHQFHRIQDWLRQDOFRGHVRUPDQXIDFWXUHUV·
recommendations, local code recommendations
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5HIULJHUDQWSLSLQJDQGZLULQJVKRXOGEHSURSHUO\
VL]HGDQGNHSWDVVKRUWDVSRVVLEOHWRDYRLG
capacity losses and increased operating costs.
/RFDWHWKHXQLWZKHUHZDWHUUXQRIIZLOOQRWFUHDWH
DSUREOHPZLWKWKHHTXLSPHQW3RVLWLRQWKHXQLW
DZD\IURPWKHGULSHGJHRIWKHURRIZKHQHYHU
SRVVLEOH8QLWVDUHZHDWKHUL]HGEXWFDQEH
DIIHFWHGE\WKHIROORZLQJ
• Water pouring into the unit from the junction
RIURRIOLQHVZLWKRXWSURWHFWLYHJXWWHULQJ/DUJH
YROXPHVRIZDWHUHQWHULQJWKHKHDWSXPSZKLOH
in operation can impact fan blade or motor life,
and coil damage may occur to a heat pump if
moisture cannot drain from the unit under freezing
conditions.
• Freezing moisture or sleeting conditions can
cause the cabinet to ice-over prematurely and
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KHDWZKLFKJHQHUDOO\UHVXOWVLQOHVVHFRQRPLFDO
RSHUDWLRQ,WLVKLJKO\UHFRPPHQGHGWRVZLWFKWKH
EcoNet™ Control Center or thermostat to the
"Emergency Heat" mode during freezing rain
or sleeting conditions to prevent damage to the
outdoor coil from ice accumulating on the fan
blade.
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Section 4.2.1.
• 24" [61.0 cm] to the service panel access
• 60" [152.4 cm] above heat pump fan discharge
(unit top) to prevent recirculation
• 6" [15.2 cm] to heat pump coil grille air inlets
ZLWK>FP@PLQLPXPUHFRPPHQGHG
SERVICE PANELS/
INLET CONNECTIONS
/ HIGH & LOW
VOLTAGE ACCESS
ALLOW 24” [610 mm] OF
CLEARANCE
ALLOW 60” [1524 mm]
OF CLEARANCE
AIR INLET LOUVERS ALLOW
6” [152 mm] Min. OF
CLEARANCE ALL SIDES
12” [305 mm] RECOMMENDED
ST-A1226-04-00
6" MIN. (152 mm) FOR 1.5 & 2 TON
9" MIN. (229 mm) FOR 2.5-5 TON
24" MIN. (610 mm)
4.0 INSTALLATION
Location

10
4.2 Choosing a Location (cont.)
4.2.3 Corrosive Environment
The metal parts of this unit may be subject to
rust or deterioration if exposed to a corrosive
environment. This oxidation could shorten the
HTXLSPHQW·VXVHIXOOLIH
Corrosive elements include, but are not limited to,
salt spray, fog or mist in seacoast areas, sulphur or
FKORULQHIURPODZQZDWHULQJV\VWHPVDQGYDULRXV
chemical contaminants from industries such as
paper mills and petroleum refineries.
,IWKHXQLWLVWREHLQVWDOOHGLQDQDUHDZKHUH
FRQWDPLQDQWVDUHOLNHO\WREHDSUREOHPVSHFLDO
attention should be given to the equipment location
and exposure.
$YRLGKDYLQJODZQVSULQNOHUKHDGVVSUD\GLUHFWO\
on the unit cabinet.
• In coastal areas, locate the unit on the side of the
EXLOGLQJDZD\IURPWKHZDWHUIURQW
• Shielding provided by a fence or shrubs may give
some protection, but cannot violate minimum
DLUIORZDQGVHUYLFHDFFHVVFOHDUDQFHV
WARNING: 'LVFRQQHFWDOOSRZHU
to unit before starting maintenance. Failure to do
VRFDQFDXVHHOHFWULFDOVKRFNUHVXOWLQJLQVHYHUH
personal injury or death.
5HJXODUPDLQWHQDQFHZLOOUHGXFHWKHEXLOGXSRI
FRQWDPLQDQWVDQGKHOSWRSURWHFWWKHXQLW·VILQLVK
)UHTXHQWZDVKLQJRIWKHFDELQHWIDQEODGHDQG
FRLOZLWKIUHVKZDWHUZLOOUHPRYHPRVWRIWKHVDOW
or other contaminants that build up on the unit.
5HJXODUFOHDQLQJDQGZD[LQJRIWKHFDELQHW
ZLWKDJRRGDXWRPRELOHSROLVKZLOOSURYLGHVRPH
protection.
• A good liquid cleaner may be used several times
D\HDUWRUHPRYHPDWWHUWKDWZLOOQRWZDVKRIIZLWK
ZDWHU
4.2.4 Customer Satisfaction
Issues
7KHKHDWSXPSVKRXOGEHORFDWHGDZD\IURPWKH
living, sleeping, and recreational spaces of the
RZQHUDQGWKRVHVSDFHVRQDGMRLQLQJSURSHUW\
• To prevent noise transmission, the mounting pad
for the outdoor unit should not be connected to
the structure and should be located a sufficient
GLVWDQFHDERYHJUDGHWRSUHYHQWJURXQGZDWHU
from entering the unit.
4.0 INSTALLATION
4.3.1 Unit Mounting Methods
The outdoor heat pump unit may be mounted in
DQXPEHURIZD\V7KHPRVWFRPPRQPHWKRGLV
on a ground mounted concrete or pre-fabricated
pad. It can also be mounted on a ground or roof
PRXQWHGPHWDOIUDPHZRRGHQIUDPHRUµ[µ
ZRRGHQVWULQJHUV,WLVH[WUHPHO\LPSRUWDQWWR
properly secure the unit to the pad or frame so it
GRHVQRWVKLIWGXULQJKLJKZLQGVVHLVPLFHYHQWV
or other outside forces to eliminate the possibility
of a safety hazard or physical damage to the
unit. Local codes in regions subject to frequent
KXUULFDQHVDQGVHLVPLFHYHQWVZLOOGLFWDWHVSHFLILF
PRXQWLQJUHTXLUHPHQWVDQGPXVWEHIROORZHG,W
is also important to elevate the heat pump in areas
WKDWUHFHLYHDVLJQLILFDQWDPRXQWRIVQRZIDOOVR
DFFXPXODWHGVQRZGRHVQRWEORFNWKHRXWGRRUFRLO
DQGLQWHUIHUHZLWKGUDLQDJHRIZDWHUGXULQJWKH
defrost cycle. Refer to Section 4.3.4 for typical
JURXQGVQRZOHYHOVIRUGLIIHUHQWUHJLRQVRIWKH86$
4.3.2 High Wind and Seismic
Tie-Down Methods
The manufacturer-approved/recommended method
LVDJXLGHWRVHFXULQJHTXLSPHQWIRUZLQGDQG
seismic loads. Other methods might provide the
same result, but the manufacturer method is the
only one endorsed by the manufacturer for securing
HTXLSPHQWZKHUHZLQGRUHDUWKTXDNHGDPDJH
can occur. Additional information is available on
WKHPDQXIDFWXUHU·VZHEVLWHRUIURPWKHZKROHVDOH
distributor.
4.3
Location

11
4.0 INSTALLATION
4.3.4 Ground Snow Depth Table
NOTICE: /RFDOUHFRUGVDQGH[SHULHQFHPXVWEHFRQVLGHUHGZKHQHVWDEOLVKLQJWKHXQLWLQVWDOODWLRQKHLJKW7KHUHLVDSUREDELOLW\WKDW
WKHJURXQGVQRZGHSWKVKRZQLQWKLVWDEOHZLOOEHH[FHHGHGDQQXDOO\'ULIWVKDYHQRWEHHQFRQVLGHUHG7KLVGDWDUHSUHVHQWV
1DWLRQDO:HDWKHU6HUYLFHORFDWLRQVDWZKLFKPHDVXUHPHQWVDUHPDGHDQGDVVXPHVDQDWLRQZLGHVQRZGHQVLW\RIOEIW
3
ALABAMA INDIANA MINNESOTA NEW MEXICO PENNSYLVANIA VIRGINIA
Huntsville 7 Evansville 12 Duluth 64 Albuquerque 4 Allentown 23 Dulles Airport 19
ARIZONA Fort Wayne 17 International Falls 43 Clayton 10 Erie 19 Lynchburg 16
Flagstaff 48 Indianapolis 21
Minneapolis/St. Paul 50 Roswell 8 Harrisburg 23 National Airport 18
Prescott 3 South Bend 44 Rochester 50 NEW YORK Philadelphia 16 Norfolk 9
Winslow 7 IOWA St. Cloud 53 Albany 25 Pittsburgh 22 Richmond 12
ARKANSAS Burlington 17 MISSISSIPPI Binghamton 35 Scranton 16 Roanoke 17
Fort Smith 5 Des Moines 22 Jackson 3 Buffalo 42 Williamsport 20 WASHINGTON
Little Rock 6 Dubuque 38 MISSOURI
NYC – Kennedy Airport 18 RHODE ISLAND Olympia 24
CALIFORNIA Sioux City 33 Columbia 21
NYC – LaGuardia Airport 18 Providence 21 Quillayute 24
Blue Canyon 25 Waterloo 36 Kansas City 18 Rochester 38 SOUTH CAROLINA Seattle-Tacoma 14
Mt. Shasta 69 KANSAS St. Louis 16 Syracuse 35 Columbia 12 Spokane 41
COLORADO Concordia 23 Springeld 14 NORTH CAROLINA Greenville 4 Stampede Pass 51
Alamosa 15 Dodge City 12 MONTANA Asheville 12 SOUTH DAKOTA Yakima 25
Colorado Springs 14 Goodland 14 Billings 17 Cape Hattaras 5 Aberdeen 42 WEST VIRGINIA
Denver 15 Topeka 19 Glasgow 17 Charlotte 10 Huron 43 Beckley 51
Grand Junction 16 Wichita 11 Great Falls 16 Greensboro 11 Rapid City 14 Charleston 20
Pueblo 7KENTUCKY Havre 24 Raleigh-Durham 10 Sioux Falls 38 Elkins 21
CONNECTICUT Covington 12 Helena 18 Wilmington 9 TENNESSEE Huntington 15
Bridgeport 23 Lexington 12 Kalispell 53 Winston-Salem 17 Bristol 8 WISCONSIN
Hartford 29 Louisville 11 Missoula 23 NORTH DAKOTA Chattanooga 6 Green Bay 36
New Haven 15 MAINE NEBRASKA Bismarck 25 Knoxville 8 La Crosse 32
DELAWARE Caribou 100 Grand Island 30 Fargo 34 Memphis 5 Madison 32
Wilmington 13 Portland 62 Lincoln 20 Williston 25 Nashville 8 Milwaukee 32
GEORGIA MARYLAND Norfolk 29 OHIO TEXAS WYOMING
Athens 5 Baltimore 17 North Platte 15 Akron-Canton 15 Abilene 6 Casper 10
Macon 8MASSACHUSETTS Omaha 20 Cleveland 16 Amarillo 10 Cheyenne 15
IDAHO Boston 30 Scottsbluff 11 Columbus 10 Dallas 3 Lander 20
Boise 6 Nantucket 18 Valentine 22 Dayton 11 El Paso 5 Sheridan 25
Lewiston 9 Worcester 35 NEVADA Manseld 17 Fort Worth 6
Pocatello 7 MICHIGAN Elko 20 Toledo Express 8 Lubbock 10
ILLINOIS Alpena 53 Ely 9 Youngstown 12 Midland 2
Chicago O’Hare 18 Detroit City 9 Reno 11 OKLAHOMA San Antonio 3
Chicago 22 Detroit Airport 17 Winnemucca 6 Oklahoma City 5 Wichita Falls 5
Moline 17
Detroit – Willow Run 21 NEW HAMPSHIRE Tulsa 8 UTAH
Peoria 16 Flint 28 Concord 66 OREGON Milford 16
Rockford 25 Grand Rapids 37 NEW JERSEY Burns City 24 Salt Lake City 8
Springeld 23 Houghton Lake 56 Atlantic City 11 Eugene 17 Wendover 3
Lansing 42 Newark 15 Medford 8 VERMONT
Marquette 53 Pendleton 11 Burlington 37
Muskegon 43 Portland 10
Sault Ste. Marie 80 Salem 7
GROUND SNOW DEPTH – INCHES
4.3.3 Elevating Unit
WARNING: Secure an elevated unit and its
elevating stand in order to prevent tipping. Failure to do so may
result in severe personal injury or death.
If elevating the heat pump, either on a flat roof or on a slab, observe
WKHIROORZLQJJXLGHOLQHV
• The bottom of the basepan has receptacles for 4" [10.2 cm]
VFKHGXOH39&SLSHWKDWFDQEHFXWWROHQJWKDQGXVHGDVULVHUV
for slab applications.
• If elevating a unit on a flat roof, use 4" x 4" [10.2 cm x 10.2 cm] or
HTXLYDOHQWVWULQJHUVSRVLWLRQHGWRGLVWULEXWHXQLWZHLJKWHYHQO\DQG
prevent noise and vibration.
:KHUHVQRZIDOOLVDQWLFLSDWHGUDLVHWKHXQLWDERYHWKHEDVHSDGWR
prevent ice buildup and coil damage. Mount the unit high enough
WREHDERYHWKHDYHUDJHDFFXPXODWHGDUHDVQRZIDOO6HH´*URXQG
6QRZ'HSWKµFKDUWEHORZIRUUHSUHVHQWDWLYHVQRZGHSWKV
NOTICE: 'RQRWEORFNGUDLQRSHQLQJVRQERWWRP
of unit.
,IXQLWPXVWEHHOHYDWHGEHFDXVHRIDQWLFLSDWHGVQRZIDOO
secure unit and elevating stand such that unit and/or stand
ZLOOQRWWLSRYHURUIDOORII.HHSLQPLQGWKDWVRPHRQHPD\
try to climb on unit.
67$
(/(9$7($%29(
$17,&,3$7(+,*+
612:)$//
'2127%/2&.
23(1,1*6
,1%$6(3$1
%$6(3$'
&21&5(7(2527+(5
68,7$%/(0$7(5,$/
Mounting

12
4.4 Refrigerant Line Set Selection
7RSUHYHQWIDLOXUHRIDQHZXQLWWKHH[LVWLQJOLQHVHW
PXVWEHFRUUHFWO\VL]HGIRUWKHQHZXQLWDQGPXVW
EHFOHDQHGRUUHSODFHG&DUHPXVWEHWDNHQVR
WKHH[SDQVLRQGHYLFHLVQRWSOXJJHG)RUQHZDQG
replacement units, a liquid line filter drier must be
installed and the line set must be properly sized.
Test the oil for acid. If it tests positive for acid, a
suction line filter drier is mandatory.
IMPORTANT: When replacing an
5XQLWZLWKDQ5$XQLWHLWKHUUHSODFH
the line set or ensure that residual mineral oil is
drained from existing lines including oil trapped in
ORZVSRWV
4.4.1 Replacing Existing Systems
4.0 INSTALLATION
4.4.2 Line Set Length and Fitting Losses
ƋƵŝǀĂůĞŶƚ>ĞŶŐƚŚĨŽƌ&ŝƚƚŝŶŐƐ;ĨƚͿ΀ŵ΁
>ŝŶĞ^ŝnjĞ
;ŝŶͿ΀ŵŵ΁
ϵϬΣ^ŚŽƌƚ
ZĂĚŝƵƐ
ůďŽǁ
ϵϬΣ>ŽŶŐ
ZĂĚŝƵƐ
ůďŽǁ
ϰϱΣ
ůďŽǁ
^ŽůĞŶŽŝĚ
sĂůǀĞ
ŚĞĐŬ
sĂůǀĞ
^ŝƚĞ
'ůĂƐƐ
&ŝůƚĞƌ
ƌŝĞƌ
ϯϴ΀ϵϱϯ΁ ϭϯ΀ϬϰϬ΁ Ϭϴ΀ϬϮϰ΁ Ϭϯ΀ϬϬϵ΁ ϲ΀ϭϴϯ΁ ϰ΀ϭϮϮ΁ Ϭϰ΀ϬϭϮ΁ ϲ΀ϭϴϯ΁
ϭϮ΀ϭϮϳϭ΁ ϭϰ΀Ϭϰϯ΁ Ϭϵ΀ϬϮϳ΁ Ϭϰ΀ϬϭϮ΁ ϵ΀Ϯϳϰ΁ ϱ΀ϭϱϮ΁ Ϭϲ΀Ϭϭϴ΁ ϲ΀ϭϴϯ΁
ϱϴ΀ϭϱϴϴ΁ ϭϱ΀Ϭϰϲ΁ ϭ΀ϬϯϬ΁ Ϭϱ΀Ϭϭϱ΁ ϭϮ΀ϯϲϲ΁ ϲ΀ϭϴϯ΁ Ϭϴ΀ϬϮϰ΁ ϲ΀ϭϴϯ΁
ϯϰ΀ϭϵϬϱ΁ ϭϵ΀Ϭϱϴ΁ ϭϯ΀ϬϰϬ΁ Ϭϲ΀Ϭϭϴ΁ ϭϰ΀ϰϮϳ΁ ϳ΀Ϯϭϯ΁ Ϭϵ΀ϬϮϳ΁ ϲ΀ϭϴϯ΁
ϳϴ΀ϮϮϮϯ΁ Ϯϯ΀ϬϳϬ΁ ϭϱ΀Ϭϰϲ΁ Ϭϳ΀ϬϮϭ΁ ϭϱ΀ϰϱϳ΁ ϴ΀Ϯϰϰ΁ ϭ΀ϬϯϬ΁ ϲ΀ϭϴϯ΁
ϭͲϭϴ΀Ϯϴϱϴ΁ Ϯϳ΀ϬϴϮ΁ ϭϴ΀Ϭϱϱ΁ Ϭϵ΀ϬϮϳ΁ ϮϮ΀ϲϳϭ΁ ϭϮ΀ϯϲϲ΁ ϭϱ΀Ϭϰϲ΁ ϲ΀ϭϴϯ΁
4.4.3 Liquid Line Selection
Table 1
Tubing
Refrigerant tubing is measured in terms of actual
length and equivalent length. Actual length is used
for refrigerant charge applications. Equivalent
OHQJWKWDNHVLQWRDFFRXQWSUHVVXUHORVVHVIURPWXE-
LQJOHQJWKÀWWLQJVYHUWLFDOVHSDUDWLRQDFFHVVRULHV
DQGÀOWHUGULHUV7KHWDEOHEHORZUHIHUHQFHVGLIIHU-
ent commonly used equivalent lengths.
7KHSXUSRVHRIWKHOLTXLGOLQHLVWRWUDQVSRUWZDUP
VXEFRROHGOLTXLGUHIULJHUDQWEHWZHHQWKHRXWGRRU
XQLWWRWKHLQGRRUXQLW,WLVLPSRUWDQWQRWWRDOORZWKH
UHIULJHUDQWWRÁDVKLQWRVXSHUKHDWHGYDSRUSULRUWR
the expansion device of the indoor or outdoor coil.
7KHÁDVKLQJRIUHIULJHUDQWFDQRFFXUIRUWKHIROORZ-
ing reasons:
 /RZUHIULJHUDQWFKDUJH
• Improperly selected liquid line size
• Absorption of heat prior to expansion device
 ([FHVVLYHYHUWLFDOVHSDUDWLRQEHWZHHQWKHRXW-
door unit and indoor coil
 5HVWULFWHGOLTXLGOLQHRUÀOWHUGULHU
 .LQNHGOLTXLGOLQH
7KHWRWDOSUHVVXUHGURSDOORZHGIRUWKHOLTXLGOLQHLV
36,>N3D@7KHSURFHGXUHIRUVHOHFWLQJWKH
SURSHUOLTXLGOLQHLVDVIROORZV
• Measure the total amount of vertical separation
EHWZHHQWKHRXWGRRUXQLWDQGLQGRRUFRLO
• Measure the linear length of liquid line needed.
 $GGDOORIWKHHTXLYDOHQWOHQJWKVDVVRFLDWHGZLWK
DQ\ÀWWLQJVRUDFFHVVRULHVXVLQJ7DEOHDERYH
 $GGWKHOLQHDUOHQJWKWRWKHWRWDOÀWWLQJHTXLYDOHQW
OHQJWK7KLVZLOOHTXDO\RXUWRWDOHTXLYDOHQWOLQH
length.
• Reference Table 2 to verify the calculated
HTXLYDOHQWOHQJWKLVDFFHSWDEOHZLWKWKHUHTXLUHG
vertical separation and diameter of liquid line.

13
4.0 INSTALLATION
Tubing
4.4 Refrigerant Line Set Selection (cont.)
фϮϱ ϮϲͲϱϬ ϱϭͲϳϱ ϳϲͲϭϬϬ ϭϬϭͲϭϮϱ ϭϮϲͲϭϱϬ
ϭϰΗ ϱϴΗ ϲϳ ϮϱϭϬϬ ϱϬϬϵϵ ϯϯϬϵϴ ϲϬϵϳ EZ EZ
ϱϭϲΗ ϱϴΗ ϱϬ ϮϱϭϬϬ ϱϬϬϵϵ ϱϬϬϵϴ ϱϬϬϵϳ ϱϬϬϵϲ ϱϬϬϵϱ
ϯϴΗ ϱϴΗ ϯϯ ϮϱϭϬϬ ϱϬϬϵϵ ϱϬϬϵϴ ϱϬϬϵϳ ϱϬϬϵϲ ϱϬϬϵϱ
ϭϰΗ ϯϰΗΎ ϲϳ ϮϱϭϬϬ ϱϬϭϬϬ ϯϯϬϵϵ ϲϬϵϵ EZ EZ
ϱϭϲΗ ϯϰΗΎ ϱϬ ϮϱϭϬϬ ϱϬϭϬϬ ϱϬϬϵϵ ϱϬϬϵϵ ϱϬϬϵϵ ϱϬϬϵϴ
ϯϴΗ ϯϰΗΎ ϯϯ ϮϱϭϬϬ ϱϬϭϬϬ ϱϬϬϵϵ ϱϬϬϵϵ ϱϬϬϵϵ ϱϬϬϵϴ
ϱϭϲΗ ϱϴΗ Ϭ ϮϱϬϵϵ ϱϬϬϵϳ ϱϬϬϵϱ ϱϬϬϵϯ ϯϲϬϵϭ EZ
ϯϴΗ ϱϴΗ Ϭ ϮϱϬϵϵ ϱϬϬϵϳ ϱϬϬϵϱ ϱϬϬϵϯ ϱϬϬϵϭ EZ
ϱϭϲΗ ϯϰΗ Ϭ ϮϱϭϬϬ ϱϬϬϵϵ ϱϬϬϵϵ ϱϬϬϵϴ ϯϲϬϵϳ ϮϬϬϵϲ
ϯϴΗ ϯϰΗ Ϭ ϮϱϭϬϬ ϱϬϬϵϵ ϱϬϬϵϵ ϱϬϬϵϴ ϱϬϬϵϳ ϱϬϬϵϲ
ϭϮΗ ϯϰΗ Ϭ ϮϱϭϬϬ ϱϬϬϵϵ ϱϬϬϵϵ ϱϬϬϵϴ ϱϬϬϵϳ ϱϬϬϵϲ
ϯϴΗ ϯϰΗ Ϭ ϮϱϬϵϵ ϱϬϬϵϴ ϱϬϬϵϲ ϱϬϬϵϱ ϱϬϬϵϯ ϱϬϬϵϮ
ϭϮΗ ϯϰΗ Ϭ ϮϱϬϵϵ ϱϬϬϵϴ ϱϬϬϵϲ ϱϬϬϵϱ ϱϬϬϵϯ ϱϬϬϵϮ
ϯϴΗ ϳϴΗ Ϭ ϮϱϭϬϬ ϱϬϬϵϵ ϱϬϬϵϵ ϱϬϬϵϴ ϱϬϬϵϴ ϱϬϬϵϳ
ϭϮΗ ϳϴΗ Ϭ ϮϱϭϬϬ ϱϬϬϵϵ ϱϬϬϵϵ ϱϬϬϵϴ ϱϬϬϵϴ ϱϬϬϵϳ
ϯϴΗ ϯϰΗ Ϭ ϮϱϬϵϵ ϱϬϬϵϳ ϱϬϬϵϱ ϱϬϬϵϯ ϱϬϬϵϭ EZ
ϭϮΗ ϯϰΗ Ϭ ϮϱϬϵϵ ϱϬϬϵϳ ϱϬϬϵϱ ϱϬϬϵϯ ϱϬϬϵϭ EZ
ϯϴΗ ϳϴΗ Ϭ ϮϱϭϬϬ ϱϬϬϵϵ ϱϬϬϵϴ ϱϬϬϵϴ ϱϬϬϵϳ ϯϴϬϵϲ
ϭϮΗ ϳϴΗ Ϭ ϮϱϭϬϬ ϱϬϬϵϵ ϱϬϬϵϴ ϱϬϬϵϴ ϱϬϬϵϳ ϱϬϬϵϲ
EŽƚĞƐ
ϭͿŽŶŽƚĞdžĐĞĞĚϭϱϬŌůŝŶĞĂƌůŝŶĞůĞŶŐƚŚ
ϮͿŽŶŽƚĞdžĐĞĞĚϱϬŌǀĞƌƟĐĂůƐĞƉĂƌĂƟŽŶďĞƚǁĞĞŶŝŶĚŽŽƌĂŶĚŽƵƚĚŽŽƌƵŶŝƚƐ
ϯͿΎϯϰΗǀĂƉŽƌůŝŶĞƐŚŽƵůĚŽŶůLJďĞƵƐĞĚĨŽƌϮƚŽŶƐLJƐƚĞŵƐŝĨŽƵƚĚŽŽƌƵŶŝƚŝƐďĞůŽǁŽƌĂƚƐĂŵĞůĞǀĞůĂƐŝŶĚŽŽƌ
ƵŶŝƚƚŽĂƐƐƵƌĞƉƌŽƉĞƌŽŝůƌĞƚƵƌŶ
ϰͿůǁĂLJƐƵƐĞƚŚĞƐŵĂůůĞƐƚůŝƋƵŝĚůŝŶĞĂůůŽǁĂďůĞƚŽŵŝŶŝŵŝnjĞƌĞĨƌŝŐĞƌĂŶƚĐŚĂƌŐĞ
ϱͿƉƉůŝĐĂƟŽŶƐƐŚĂĚĞĚŝŶůŝŐŚƚŐƌĂLJŝŶĚŝĐĂƚĞĐĂƉĂĐŝƚLJŵƵůƟƉůŝĞƌƐďĞƚǁĞĞŶϬϵϬĂŶĚϬϵϲǁŚŝĐŚĂƌĞŶŽƚ
ƌĞĐŽŵŵĞŶĚĞĚďƵƚĂƌĞĂůůŽǁĞĚ
ϲͿƉƉůŝĐĂƟŽŶƐƐŚĂĚĞĚŝŶĚĂƌŬŐƌĂLJĂƌĞŶŽƚƌĞĐŽŵŵĞŶĚĞĚĚƵĞƚŽĞdžĐĞƐƐŝǀĞůŝƋƵŝĚŽƌƐƵĐƟŽŶƉƌĞƐƐƵƌĞĚƌŽƉ
dĂďůĞϮZĞĨƌŝŐĞƌĂŶƚ>ŝŶĞ^ŝnjŝŶŐŚĂƌƚ;ŶŐůŝƐŚhŶŝƚƐͿ
ƋƵŝǀĂůĞŶƚ>ĞŶŐƚŚ;&ĞĞƚͿ
ϭϲ^ZϮͲ^ƚĂŐĞ,ĞĂƚWƵŵƉƐ
ϱdŽŶ
hŶŝƚ^ŝnjĞ
ůůŽǁĂďůĞ
>ŝƋƵŝĚ>ŝŶĞ
^ŝnjĞ
ůůŽǁĂďůĞ
sĂƉŽƌ>ŝŶĞ
^ŝnjĞ
ϮϬdŽŶ
Ύ^
EKdϯ
ϯdŽŶ
ϰdŽŶ
KƵƚĚŽŽƌhŶŝƚKsŽƌ>Kt/ŶĚŽŽƌhŶŝƚ
DĂdžŝŵƵŵsĞƌƟĐĂů^ĞƉĂƌĂƟŽŶĂƉĂĐŝƚLJDƵůƟƉůŝĞƌ
hƐĞ>ŽŶŐ>ŝŶĞ
'ƵŝĚĞůŝŶĞƐĨŽƌ
>ŝŶĞĂƌ>ŝŶĞ
>ĞŶŐƚŚƐ
'ƌĞĂƚĞƌdŚĂŶ
^ŚŽǁŶĞůŽǁ

14
4.4 Refrigerant Line Set Selection (cont.)
4.0 INSTALLATION
Tubing
фϴ ϴͲϭϱ ϭϲͲϮϯ ϮϰͲϯϬ ϯϭͲϯϴ ϯϵͲϰϲ
ϲϯϱ΀ϭϰ΁ ϭϱϴϴ΀ϱϴ΁ ϮϬ ϴϭϬϬ ϭϱϬϵϵ ϭϬϬϵϴ ϮϬϵϳ EZ EZ
ϳϵϰ΀ϱϭϲ΁ ϭϱϴϴ΀ϱϴ΁ ϭϱ ϴϭϬϬ ϭϱϬϵϵ ϭϱϬϵϴ ϭϱϬϵϳ ϭϱϬϵϲ ϭϱϬϵϱ
ϵϱϯ΀ϯϴ΁ ϭϱϴϴ΀ϱϴ΁ ϭϬ ϴϭϬϬ ϭϱϬϵϵ ϭϱϬϵϴ ϭϱϬϵϳ ϭϱϬϵϲ ϭϱϬϵϱ
ϲϯϱ΀ϭϰ΁ ϭϵϬϱ΀ϯϰ΁Ύ ϮϬ ϴϭϬϬ ϭϱϬϵϵ ϭϬϬϵϵ ϮϬϵϵ EZ EZ
ϳϵϰ΀ϱϭϲ΁ ϭϵϬϱ΀ϯϰ΁Ύ ϭϱ ϴϭϬϬ ϭϱϬϵϵ ϭϱϬϵϵ ϭϱϬϵϵ ϭϱϬϵϵ ϭϱϬϵϴ
ϵϱϯ΀ϯϴ΁ ϭϵϬϱ΀ϯϰ΁Ύ ϭϬ ϴϭϬϬ ϭϱϬϵϵ ϭϱϬϵϵ ϭϱϬϵϵ ϭϱϬϵϵ ϭϱϬϵϴ
ϳϵϰ΀ϱϭϲ΁ ϭϱϴϴ΀ϱϴ΁ Ϭ ϴϬϵϵ ϭϱϬϵϳ ϭϱϬϵϱ ϭϱϬϵϯ ϭϭϬϵϭ EZ
ϵϱϯ΀ϯϴ΁ ϭϱϴϴ΀ϱϴ΁ Ϭ ϴϬϵϵ ϭϱϬϵϳ ϭϱϬϵϱ ϭϱϬϵϯ ϭϱϬϵϭ EZ
ϳϵϰ΀ϱϭϲ΁ ϭϵϬϱ΀ϯϰ΁ Ϭ ϴϭϬϬ ϭϱϬϵϵ ϭϱϬϵϵ ϭϱϬϵϴ ϭϭϬϵϳ ϲϬϵϲ
ϵϱϯ΀ϯϴ΁ ϭϵϬϱ΀ϯϰ΁ Ϭ ϴϭϬϬ ϭϱϬϵϵ ϭϱϬϵϵ ϭϱϬϵϴ ϭϱϬϵϳ ϭϱϬϵϲ
ϭϮϳ΀ϭϮ΁ ϭϵϬϱ΀ϯϰ΁ Ϭ ϴϭϬϬ ϭϱϬϵϵ ϭϱϬϵϵ ϭϱϬϵϴ ϭϱϬϵϳ ϭϱϬϵϲ
ϵϱϯ΀ϯϴ΁ ϭϵϬϱ΀ϯϰ΁ Ϭ ϴϬϵϵ ϭϱϬϵϴ ϭϱϬϵϲ ϭϱϬϵϱ ϭϱϬϵϯ ϭϱϬϵϮ
ϭϮϳ΀ϭϮ΁ ϭϵϬϱ΀ϯϰ΁ Ϭ ϴϬϵϵ ϭϱϬϵϴ ϭϱϬϵϲ ϭϱϬϵϱ ϭϱϬϵϯ ϭϱϬϵϮ
ϵϱϯ΀ϯϴ΁ ϮϮϮϯ΀ϳϴ΁ Ϭ ϴϭϬϬ ϭϱϬϵϵ ϭϱϬϵϵ ϭϱϬϵϴ ϭϱϬϵϴ ϭϱϬϵϳ
ϭϮϳ΀ϭϮ΁ ϮϮϮϯ΀ϳϴ΁ Ϭ ϴϭϬϬ ϭϱϬϵϵ ϭϱϬϵϵ ϭϱϬϵϴ ϭϱϬϵϴ ϭϱϬϵϳ
ϵϱϯ΀ϯϴ΁ ϭϵϬϱ΀ϯϰ΁ Ϭ ϴϬϵϵ ϭϱϬϵϳ ϭϱϬϵϱ ϭϱϬϵϯ ϭϰϬϵϭ EZ
ϭϮϳ΀ϭϮ΁ ϭϵϬϱ΀ϯϰ΁ Ϭ ϴϬϵϵ ϭϱϬϵϳ ϭϱϬϵϱ ϭϱϬϵϯ ϭϱϬϵϭ EZ
ϵϱϯ΀ϯϴ΁ ϮϮϮϯ΀ϳϴ΁ Ϭ ϴϭϬϬ ϭϱϬϵϵ ϭϱϬϵϴ ϭϱϬϵϴ ϭϱϬϵϳ ϭϮϬϵϲ
ϭϮϳ΀ϭϮ΁ ϮϮϮϯ΀ϳϴ΁ Ϭ ϴϭϬϬ ϭϱϬϵϵ ϭϱϬϵϴ ϭϱϬϵϴ ϭϱϬϵϳ ϭϱϬϵϲ
EŽƚĞƐ
ϭͿŽŶŽƚĞdžĐĞĞĚϰϲŵĞƚĞƌƐůŝŶĞĂƌůŝŶĞůĞŶŐƚŚ
ϮͿŽŶŽƚĞdžĐĞĞĚϭϱŵĞƚĞƌƐǀĞƌƟĐĂůƐĞƉĂƌĂƟŽŶďĞƚǁĞĞŶŝŶĚŽŽƌĂŶĚŽƵƚĚŽŽƌƵŶŝƚƐ
ϯͿΎϭϵϬϱŵŵ΀ϯϰŝŶ΁ǀĂƉŽƌůŝŶĞƐŚŽƵůĚŽŶůLJďĞƵƐĞĚĨŽƌϮƚŽŶƐLJƐƚĞŵƐŝĨŽƵƚĚŽŽƌƵŶŝƚŝƐďĞůŽǁŽƌĂƚƐĂŵĞůĞǀĞůĂƐŝŶĚŽŽƌ
ƵŶŝƚƚŽĂƐƐƵƌĞƉƌŽƉĞƌŽŝůƌĞƚƵƌŶ
ϰͿůǁĂLJƐƵƐĞƚŚĞƐŵĂůůĞƐƚůŝƋƵŝĚůŝŶĞĂůůŽǁĂďůĞƚŽŵŝŶŝŵŝnjĞƌĞĨƌŝŐĞƌĂŶƚĐŚĂƌŐĞ
ϱͿƉƉůŝĐĂƟŽŶƐƐŚĂĚĞĚŝŶůŝŐŚƚŐƌĂLJŝŶĚŝĐĂƚĞĐĂƉĂĐŝƚLJŵƵůƟƉůŝĞƌƐďĞƚǁĞĞŶϬϵϬĂŶĚϬϵϲǁŚŝĐŚĂƌĞŶŽƚ
ƌĞĐŽŵŵĞŶĚĞĚďƵƚĂƌĞĂůůŽǁĞĚ
ϲͿƉƉůŝĐĂƟŽŶƐƐŚĂĚĞĚŝŶĚĂƌŬŐƌĂLJĂƌĞŶŽƚƌĞĐŽŵŵĞŶĚĞĚĚƵĞƚŽĞdžĐĞƐƐŝǀĞůŝƋƵŝĚŽƌƐƵĐƟŽŶƉƌĞƐƐƵƌĞĚƌŽƉ
ϳϬ<t
΀ϮϬdŽŶ΁
Ύ^
EKdϯ
ϭϬϲ<t
΀ϯdŽŶ΁
ϭϰϭ<t
΀ϰdŽŶ΁
ϭϳϲ<t
΀ϱdŽŶ΁
dĂďůĞϮZĞĨƌŝŐĞƌĂŶƚ>ŝŶĞ^ŝnjŝŶŐŚĂƌƚ;DĞƚƌŝĐhŶŝƚƐͿ
ϭϲ^ZsĂƌŝĂďůĞ^ƉĞĞĚ,ĞĂƚWƵŵƉƐ
hŶŝƚ^ŝnjĞ
ůůŽǁĂďůĞ
>ŝƋƵŝĚ>ŝŶĞ
^ŝnjĞ
ŵŵ΀ŝŶ΁
ůůŽǁĂďůĞ
sĂƉŽƌ>ŝŶĞ
^ŝnjĞ
ŵŵ΀ŝŶ΁
KƵƚĚŽŽƌhŶŝƚKsŽƌ>Kt/ŶĚŽŽƌhŶŝƚ
ƋƵŝǀĂůĞŶƚ>ĞŶŐƚŚ;DĞƚĞƌƐͿ
DĂdžŝŵƵŵsĞƌƟĐĂů^ĞƉĂƌĂƟŽŶĂƉĂĐŝƚLJDƵůƟƉůŝĞƌ
hƐĞ>ŽŶŐ>ŝŶĞ
'ƵŝĚĞůŝŶĞƐĨŽƌ
>ŝŶĞĂƌ>ŝŶĞ
>ĞŶŐƚŚƐ'ƌĞĂƚĞƌ
dŚĂŶ^ŚŽǁŶ
ĞůŽǁ
;
DĞƚĞƌƐ
Ϳ
фϮϱ ϮϲͲϱϬ ϱϭͲϳϱ ϳϲͲϭϬϬ ϭϬϭͲϭϮϱ ϭϮϲͲϭϱϬ
ϱϭϲΗ ϱϴΗ Ϭ ϮϱϬϵϵ ϱϬϬϵϳ ϱϬϬϵϱ ϱϬϬϵϯ ϯϲϬϵϭ EZ
ϯϴΗ ϱϴΗ Ϭ ϮϱϬϵϵ ϱϬϬϵϳ ϱϬϬϵϱ ϱϬϬϵϯ ϱϬϬϵϭ EZ
ϱϭϲΗ ϯϰΗ Ϭ ϮϱϭϬϬ ϱϬϬϵϵ ϱϬϬϵϵ ϱϬϬϵϴ ϯϲϬϵϳ ϮϬϬϵϲ
ϯϴΗ ϯϰΗ Ϭ ϮϱϭϬϬ ϱϬϬϵϵ ϱϬϬϵϵ ϱϬϬϵϴ ϱϬϬϵϳ ϱϬϬϵϲ
ϭϮΗ ϯϰΗ Ϭ ϮϱϭϬϬ ϱϬϬϵϵ ϱϬϬϵϵ ϱϬϬϵϴ ϱϬϬϵϳ ϱϬϬϵϲ
;džĐĞƌƉƚĨƌŽŵdĂďůĞϮͿ
ƋƵŝǀĂůĞŶƚ>ĞŶŐƚŚ;&ĞĞƚͿ
hŶŝƚ^ŝnjĞ
ůůŽǁĂďůĞ
>ŝƋƵŝĚ>ŝŶĞ
^ŝnjĞ
ůůŽǁĂďůĞ
sĂƉŽƌ>ŝŶĞ
^ŝnjĞ
ϯdŽŶ
KƵƚĚŽŽƌhŶŝƚKsŽƌ>Kt/ŶĚŽŽƌhŶŝƚ
DĂdžŝŵƵŵsĞƌƟĐĂů^ĞƉĂƌĂƟŽŶĂƉĂĐŝƚLJDƵůƟƉůŝĞƌ
hƐĞ>ŽŶŐ>ŝŶĞ
'ƵŝĚĞůŝŶĞƐĨŽƌ
>ŝŶĞĂƌ>ŝŶĞ
>ĞŶŐƚŚƐ
'ƌĞĂƚĞƌdŚĂŶ
^ŚŽǁŶĞůŽǁ
Example:$7RQRXWGRRUXQLWLVLQVWDOOHGEHORZ
the Indoor unit, requires a 75' of 3/8" diameter liquid
OLQHGLDPHWHUYDSRUOLQH/5HOERZVDQGD
ÀOWHUGULHU
 )LWWLQJ(TXLYDOHQW/HQJWKIW [·· ·
 7RWDO(TXLYDOHQW/HQJWKIW ·· ·
This application is acceptable because the 25'
vertical rise is less than the maximum rise of 50' for
this application. The application is also considered to
have a long line set since 75 linear feet exceeds the
limit of 0 feet. Reference the long line set section of
the I&O for detail.

15
Tubing
4.4.4 Vapor Line Selection
Purpose of the vapor line is to return superheated
vapor to the condensing unit from the evaporator
in the cooling mode and hot discharge gas to the
indoor coil in the heating mode. Proper vapor line
sizing is important because it plays an important
role in returning oil to the compressor to prevent
potential damage to the bearings, valves, and scroll
sets. Also, an undersized vapor line can dramatical-
ly reduce capacity and performance of the system.
The procedure for selecting the proper vapor line is
DVIROORZV
• The total amount of suction line needed
 $GGDOORIWKHHTXLYDOHQWOHQJWKVDVVRFLDWHGZLWK
DQ\ÀWWLQJVRUDFFHVVRULHVXVLQJWKHWDEOHRQ
previous page.
 $GGWKHOLQHDUOHQJWKDQGWRWDOÀWWLQJHTXLYD-
OHQWOHQJWK7KLVZLOOHTXDO\RXUWRWDOHTXLYDOHQW
length.
• Reference Table 2 to verify that the calculated
HTXLYDOHQWOHQJWKIDOOVZLWKLQWKHDFFHSWDEOH
region of the chart.
 9HULI\WKHFDSDFLW\GLIIHUHQFHLVFRPSDWLEOHZLWK
the application using the multiplier in Table 2.
• Use only vapor line sizes listed in Table 2.
4.4.5 Long Line Set
Considerations
/RQJOLQHVHWDSSOLFDWLRQVDUHGHÀQHGDVDSSOLFD-
tions that require accessories or alternate con-
VWUXFWLRQPHWKRGV7KHIROORZLQJWKLQJVVKRXOGEH
FRQVLGHUHGZKHQVHOHFWLQJDQGLQVWDOOLQJDORQJOLQH
set:
• Additional refrigerant charge
• Fitting losses and maximum equivalent length
considerations
• Refrigerant migration during the off cycle
• Oil return to the compressor
• Capacity losses
• System oil level adjustment
4.4.5.1 Determining if Long Line
Set Length Requirements Apply
Table 2 is used to determine if the application is
considered to have a long line set. A column is pro-
YLGHGWKDWVKRZVWKHOLQHDUOLQHOHQJWKZKHUHORQJ
line length requirements apply.
4.4.5.2 Oil Return to Compressor
6PDOODPRXQWVRIFRPSUHVVRUFUDQNFDVHRLOLV
SLFNHGXSDQGFDUULHGRXWRIWKHFRPSUHVVRUE\WKH
moving refrigerant and is circulated through the
V\VWHPDORQJZLWKWKHUHIULJHUDQWEHIRUHLWUHWXUQVWR
WKHFRPSUHVVRUFUDQNFDVH,WLVFULWLFDOWRWKHOLIHRI
the compressor for the oil to be able to return to the
compressor to maintain an adequate level of oil in
WKHFRPSUHVVRUFUDQNFDVH2YHUVL]HGYDSRUOLQHV
result in inadequate refrigerant velocities to carry
WKHRLODORQJZLWKWKHUHIULJHUDQWDQGZLOOFDXVHWKH
RLOWRDFFXPXODWHLQWKHORZVSRWVLQWKHYDSRUOLQH
LQVWHDGRIEHLQJUHWXUQHGWRWKHFRPSUHVVRUFUDQN-
case. This is especially true for long line lengths.
Only use the vapor line sizes listed in Table 2 to
assure proper oil return. Do not oversize the vapor
line.
4.4.5.3 Refrigerant Migration
During Off Cycle
Long line set applications can require a consider-
able amount of additional refrigerant. This addition-
al refrigerant needs to be managed throughout the
entire ambient operating envelope that the sys-
WHPZLOOJRWKURXJKGXULQJLWVOLIHF\FOH2II&\FOH
PLJUDWLRQLVZKHUHH[FHVVUHIULJHUDQWFRQGHQVHV
DQGPLJUDWHVWRWKHFROGHVWDQGRUORZHVWSDUWRI
the system. Excessive build-up of refrigerant at the
FRPSUHVVRUZLOOUHVXOWLQSRRUUHOLDELOLW\DQGQRLV\
operation during startup. Long line applications
UHTXLUH7;9VRQERWKWKHLQGRRUFRLODQGRXWGRRU
XQLWDQGDFUDQNFDVHKHDWHU6HH6HFWLRQIRU
FUDQNFDVHKHDWHULQIRUPDWLRQ
4.4.5.4 Maximum Liquid Pressure
Drop
The total liquid line pressure drop must not exceed
SVLJ>N3D@WRDVVXUHDVROLGFROXPQRIOLTXLG
at the metering device and stable control of super-
heat. Be sure to account for vertical separation,
HOERZVÀOWHUGULHUVVROHQRLGYDOYHVVLJKWJODVVHV
DQGFKHFNYDOYHVZKHQFDOFXODWLQJOLTXLGOLQHSUHV-
sure drop.
4.4.5.5 Liquid Line Refrigerant
Flashing
Excessive pressure drop and heat gain in long
OLTXLGOLQHVFDQUHVXOWLQWKHUHIULJHUDQWÁDVKLQJLQWR
DYDSRUEHIRUHLWUHDFKHVWKHPHWHULQJGHYLFHZKLFK
ZLOOGUDPDWLFDOO\UHGXFHWKHFDSDFLW\DQGHIÀFLHQF\
of the system. For this reason, the liquid line must
be sized properly using the table in Table 2 and
must be insulated in unconditioned spaces.
4.0 INSTALLATION
4.4 Refrigerant Line Set Selection (cont.)

16
4.4.5.6 Oil Level Adjustment for
Long Line Set Applications
$GGLWLRQDORLOZLOOQHHGWREHDGGHGIRUORQJOLQHVHW
DSSOLFDWLRQV5HI7DEOH%HORZLVWKHHTXDWLRQIRU
the oil level adjustment. The compressor name plate
RLOFKDUJHIRUWKHGLIIHUHQWRXWGRRUXQLWVLVVKRZQLQ
the table to the right.
Oil to be Added = [(Charge Adjustment + OD
Unit Name Plate Charge (oz.)) × (0.022) – [(0.10) ×
(Compressor Name Plate Oil Charge (oz.))]
Example: An application requires 125 ft. of line set
ZLWKDOLTXLGOLQHGLDPHWHURIµ&KDUJH$GMXVWPHQW
= 52.4 oz., Name Plate Charge = 107 oz., Name Plate
2LO&KDUJH R]2LOWREH$GGHG R]
oz.) × .022) – (.10 × 25 oz.) = 1.0 oz.
4.4 Refrigerant Line Set Selection (cont.)
4.0 INSTALLATION
Tubing
4.4.5.7 Capacity Losses
Long line lengths can result in a reduction in capacity
due to vapor line pressure drop and heat gain or loss.
Refer to Table 2 for capacity loss multipliers for vari-
ous vapor line diameters and lengths. Only use vapor
lines listed in Table 2 to assure proper oil return. This
table does not account for any capacity loss due to
heat gain or loss from the environment. It is extremely
important not to oversize the vapor line to minimize
capacity loss at the expense of proper oil return. If the
WDEOHVKRZVDQ´15µIRUDSDUWLFXODUYDSRUOLQHGLDPH-
WHUDQGOHQJWKFDSDFLW\ORVVZLOOEHH[FHVVLYH7KHIXOO
length of the vapor line must be insulated to minimize
heat gain or loss.
OD
Model Compressor Name Plate Oil Charge oz [ml]
Factory
Installed
CCH
24 ZPS21-K5E-PFV 25 [739] N
36 ZPS30K5E-PFV 25 [739] Y
48 ZPS40K5E-PFV 42 [1242] Y
60 ZPS49K5E-PFV 42 [1242] Y

17
4.5 Line Set Installation
• If tubing is to be run underground, it must be run in
DVHDOHGZDWHUWLJKWFKDVH
8VHFDUHLQURXWLQJWXELQJDQGGRQRWNLQNRUWZLVW
Use a good quality tubing bender on the vapor line
WRSUHYHQWNLQNLQJ
• Route the tubing using temporary hangers; then
straighten the tubing and install permanent hangers.
The tubing must be adequately supported.
• Isolate the vapor line from the building structure. If
WKHYDSRUOLQHFRPHVLQFRQWDFWZLWKLQVLGHZDOOV
ceiling, or flooring, the vibration of the vapor line
LQWKHKHDWLQJPRGHZLOOUHVXOWLQQRLVHLQVLGHWKH
structure.
%ORZRXWWKHOLTXLGDQGYDSRUOLQHVZLWKGU\QLWURJHQ
before connecting to the outdoor unit and indoor
coil to remove debris that can plug the expansion
device.
ST-A1226-05-00
4.0 INSTALLATION
4.5.1 Important Tubing
Installation Practices
2EVHUYHWKHIROORZLQJZKHQLQVWDOOLQJFRUUHFWO\
VL]HGW\SH´/µUHIULJHUDQWWXELQJEHWZHHQWKH
outdoor unit and indoor coil:
&KHFNWKHWDEOHVRQ7DEOHIRUWKHFRUUHFWYDSRU
line size and liquid line size.
• If a portion of the liquid line passes through a
very hot area where liquid refrigerant can be
heated to form vapor, insulating the liquid line
is required.
• Use clean, dehydrated, sealed refrigeration-grade
tubing.
$OZD\VNHHSWXELQJVHDOHGXQWLOWXELQJLVLQSODFH
and connections are to be made.
$KLJKTXDOLW\ELIORZILOWHUGULHULVLQFOXGHGZLWKDOO
R-410A heat pump units and must be installed in
the liquid line upon unit installation.
:KHQUHSODFLQJDQ5V\VWHPZLWKDQ5$
V\VWHPDQGWKHOLQHVHWLVQRWUHSODFHGEORZRXW
WKHOLQHVZLWKGU\QLWURJHQWRUHPRYHDVPXFK
RIWKHUHPDLQLQJPLQHUDORLODVSRVVLEOH&KHFN
IRUORZVSRWVZKHUHRLOPD\EHWUDSSHGDQGWDNH
measures to drain the oil from those areas.
,IWXELQJKDVEHHQFXWGHEXUWKHHQGVZKLOH
holding the tubing in a position to prevent chips
from falling into tubing. Burrs such as those
caused by tubing cutters can affect performance
dramatically, particularly on small diameter liquid
lines.
)RUEHVWRSHUDWLRQNHHSWXELQJUXQDVVKRUWDV
SRVVLEOHZLWKDPLQLPXPQXPEHURIHOERZVRU
bends.
/RFDWLRQVZKHUHWKHWXELQJZLOOEHH[SRVHGWR
mechanical damage should be avoided. If it is
necessary to use such locations, the copper
tubing should be protected by a housing to
prevent damage.
Tubing
TEMPORARY
HANGER PERMANENT
HANGER

18
ST-A1219-01-01
4.5 Line Set Installation (cont.)
4.0 INSTALLATION
4.5.2 Relative Location of Indoor and Outdoor Units
4.5.2.1 Indoor and Outdoor Unit Near Same Level
For applications that are considered to have a long
OLQHVHWZLWKWKHRXWGRRUXQLWDQGLQGRRUXQLWQHDU
WKHVDPHOHYHOWKHIROORZLQJLVUHTXLUHG
 7;9RQWKHLQGRRUFRLO
• Start components may be required depending
upon quality of voltage (consistently <200vac at
outdoor unit)
• &UDQNFDVHKHDWHU6RPHPRGHOVKDYHIDFWRU\
installed CCH's. Refer to tables in Section 4.5.5.6.)
• Insulated liquid line in unconditioned space only.
Insulate vapor line full length.
 9DSRUOLQHVKRXOGVORSHWRZDUGWKHLQGRRUXQLW
 )ROORZWKHSURSHUOLQHVL]LQJPD[LPXPOLQHDU
and equivalent lengths, charging requirements,
and oil level adjustments spelled out in this man-
ual.
 9HULI\DWOHDVW)>&@OLTXLGVXEFRROLQJDW
the indoor unit prior to expansion device in the
cooling mode.
Tubing
REFERENCE TABLE 2 FOR
0$;,080/(1*7+/,0,7$7,216
IDEALLY, LINE SET SLOPES AWAY
)520287'2259(5,)<
SUB-COOLING PRIOR TO
(;3$16,21'(9,&(,168/$7('
/,48,'/,1(,1$181&21',7,21('63$&(
FOR LONG LINE APPLICATIONS. INSULATE
9$325/,1()8///(1*7+)25$//
APPLICATIONS.

19
For applications that are considered to have a long
OLQHVHWZLWKWKHRXWGRRUXQLWEHORZWKHLQGRRUXQLW
WKHIROORZLQJLVUHTXLUHG
 7;9RUDWWKHLQGRRUFRLO
 &UDQNFDVHKHDWHU6RPHPRGHOVKDYHIDFWRU\LQ-
stalled CCH's. Refer to tables in Section 4.5.5.6.)
• Start components may be required depending
upon quality of voltage (consistently <200vac at
outdoor unit)
 5HIULJHUDQWOLQHVVKRXOGEHURXWHGHYHQZLWKWKH
top of the indoor coil or an inverted trap is to be
applied (refer to Figure 4).
• Insulated liquid line in unconditioned space only.
Insulate vapor line full length.
 )ROORZWKHSURSHUOLQHVL]LQJPD[LPXPOLQHDU
and equivalent lengths, charging requirements,
and oil level adjustments spelled out in this man-
ual.
 9HULI\DWOHDVW)>&@OLTXLGVXEFRROLQJDW
the indoor unit prior to expansion device in the
cooling mode.
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Figure 4
67$
4.5 Line Set Installation (cont.)
4.0 INSTALLATION
4.5.2.2 Outdoor Unit Below Indoor Unit
Tubing
INSULATE
/,48,'/,1(,1
UNCONDITIONED
SPACE FOR
LONG LINE
APPLICATIONS
ROUTE
REFRIGERANT LINES
(9(1:,7+7232)
COIL OR INSTALL
,19(57('75$3
,168/$7(9$325
LINE FULL LENGTH
FOR ALL APPLICATIONS
REFERENCE TABLE 2 FOR
0$;,080/(1*7+
LIMITATIONS
$1'9(57,&$/6(3$5$7,21

20
4.5 Line Set Installation (cont.)
4.5.2.3 Outdoor Unit Above Indoor Unit
4.0 INSTALLATION
For applications that are considered to have a long
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 7;9RQWKHLQGRRUFRLO
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stalled CCH's. Refer to tables in Section 4.5.5.6.)
• Start components maybe required depending
upon quality of voltage (consistently <200 vac at
outdoor unit)
• Insulated liquid line in unconditioned space only.
Insulate vapor line full length.
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equivalent lengths, charging requirements, and
oil level adjustments spelled out in this manual.
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the outdoor unit service valve in the heating
mode.
Tubing
,168/$7(/,48,'
LINE IN
UNCONDITIONED
SPACE FOR LONG
LINE APPLICATIONS
,168/$7(9$325
LINE FULL LENGTH
FOR ALL APPLICATIONS
REFERENCE TABLE 2 FOR
0$;,080/(1*7+
$1'9(57,&$/6(3$5$7,21
LIMITATIONS
7;9$7,1'225
COIL
9(5,)<
SUB-COOLING
PRIOR TO
METERING
'(9,&(