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# 48478A006

INSTALLATION

on the carrier’s freight bill. Take special care to examine
the unit inside the carton if the carton is damaged. Any
concealed damage discovered should be reported to the
last carrier immediately, preferably in writing, and should
include a request for inspection by the carrier’s agent.

If any damages are discovered and reported to the carrier
DO NOT INSTALL THE UNIT

, as claim may be denied.

Check the unit rating plate to confirm specifications
are as ordered.

Location of Unit

Outdoor units operate under a wide range of weather
conditions; therefore, multiple factors must be considered
when positioning the unit. The unit must be positioned to
give adequate clearances for sufficient airflow and servic-
ing. Refer to Figure 1 for installation clearances.

General

Read this entire instruction manual, as well as the
instructions supplied in separate equipment, before
starting the installation. Observe and follow all warn-
ings, cautions, instructional labels, and tags. Failure
to comply with these instructions could result in an
unsafe condition and/or premature component failure.

These instructions are intended as a general guide only for
use by qualified personnel and do not supersede any national
or local codes in any way. The installation must comply with all
provincial, state, and local codes as well as the National
Electrical Code (U.S.) or Canadian Electrical Code (Canada).
Compliance should be determined prior to installation.

4SHP16LT condensing units use R410A which is an
ozone-friendly HFC refrigerant. This unit must be installed
with a matching indoor coil and line set. A filter drier
approved for use with 410A is installed in the unit.

IMPORTANT: This product has been designed and manu-
factured to meet ENERGY STAR criteria for energy effi-
ciency when matched with appropriate coil components.
However, proper refrigerant charge and proper air flow are
critical to achieve rated capacity and efficiency. Installation
of this product should follow the manufacturer’s refrigerant
charging and air flow instructions. 

Failure to confirm

proper charge and airflow may reduce energy effi-
ciency and shorten equipment life.

When servicing or repairing HVAC components, ensure
the fasteners are appropriately tightened. Table 1 shows
torque values for fasteners.

Inspection of Shipment

Upon receipt of equipment, carefully inspect it for possible
shipping damage. If damage is found, it should be noted

Torque Table

Table 1

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Figure 1

Installation Clearances

* A service clearance of 30" must be maintained on

one of the sides adjacent to the control box.
Clearance to one of the other three sides must be
36". Clearance to one of the remaining two sides
may be 12" and the final side may be 6".

A clearance of 24" must be maintained between units.

48" clearance required on top of unit. Maximum soffit
overhang is 36".

36 *

"

36

"

36

"

36 *

"

Place a sound-absorbing material, such as Isomode,
under the unit if it will be installed in a location or
position that will transmit sound or vibration to the
living area or adjacent buildings.

Install the unit high enough above the ground or roof
to allow adequate drainage of defrost water and
prevent ice buildup.

In heavy snow areas, do not locate the unit where
drifting snow will occur. The unit base should be
elevated above the depth of average snows.

Summary of Contents for 4SHP16LT Series

Page 1: ...mote power supplies before installing or servicing any portion of the system Failure to disconnect power supplies can result in property damage personal injury or death WARNING The equipment covered i...

Page 2: ...his product has been designed and manu factured to meet ENERGY STAR criteria for energy effi ciency when matched with appropriate coil components However proper refrigerant charge and proper air flow...

Page 3: ...of the control box Connect conduit to the control box using a proper conduit fitting Units are approved for use only with copper conductors 24V Class II circuit connections are made in the low voltag...

Page 4: ...0 6 3 8 3 8 3 8 3 8 3 2 1 0 0 0 2 4 8 3 8 3 8 3 2 1 2 1 0 0 0 8 4 8 3 8 3 8 3 2 1 2 1 0 0 0 0 6 8 3 8 3 8 3 2 1 2 1 Figure 3 Thermostat Designations Some connections may not apply Refer to specific t...

Page 5: ...how to install line sets on horizontal runs Figure 6 shows how to make a transition from horizontal to vertical Figure 7 shows how to install line sets on vertical runs Brazing Connection Procedure 1...

Page 6: ...lex Liquid Line Strap Liquid Line to Vapor Line Figure 5 To hang line set from joist or rafter use either metal strapping material or anchored heavy nylon wire ties Strapping Material around vapor lin...

Page 7: ...an insulator preventing proper heat transfer It can also clog the thermal expansion valve reducing system performance and capacity Failure to properly flush system as explained in these instructions w...

Page 8: ...vices are not approved for use with R410A refrigerant and may prevent proper flushing Use a field provided fitting to reconnect the lines 5 Remove the pressure tap valve cores from the 4SHP16LT unit s...

Page 9: ...ine to the equalizer port on the suction line and tighten to 8 ft lbs Table 3 TXV Data l e d o M t r a P r e b m u N 0 3 4 2 T L 6 1 P H S 4 1 0 V X T 4 H 6 3 T L 6 1 P H S 4 2 0 V X T 4 H T L 6 1 P H...

Page 10: ...inger tight then tighten an additional 1 6 turn To Close Liquid or Suction Line Service Valve 1 Remove the stem cap with an adjustable wrench 2 Use a service wrench with a hex head extension to turn t...

Page 11: ...e vacuum pump with vacuum gauge to the center port of the manifold gauge set 4 Open both manifold valves and start vacuum pump 5 Evacuate the line set and indoor unit to a minimum of 500 microns or lo...

Page 12: ...ching indoor coil and outdoor coil with 15 line set For varying lengths of line set refer to Table 4 for If unit is equipped with a crankcase heater it should be energized 24 hours before unit start u...

Page 13: ...to use Proceed with the appropriate charging method Charge Using Weigh In Method If the system is void of refrigerant or if the outdoor ambient temperature is cool first locate and repair any leaks t...

Page 14: ...2 2 1 4 0 2 1 7 7 1 4 1 2 1 2 3 2 4 2 2 1 8 8 2 4 3 2 1 5 4 3 4 4 2 1 2 0 4 4 5 2 1 9 5 4 4 6 2 1 8 1 5 4 7 2 1 6 7 5 4 8 2 1 5 3 6 4 9 2 1 5 9 6 4 0 3 1 6 5 7 4 1 3 1 6 1 8 4 2 3 1 8 7 8 4 3 3 1 0 4...

Page 15: ...1 5 2 4 2 4 1 F 5 1 1 5 8 4 4 5 1 9 8 4 1 5 1 1 9 4 1 5 1 6 8 4 6 4 1 1 g n i t a e H t s y t i c a p a C w o L e g a t S F 0 4 7 3 3 3 9 8 2 3 8 9 9 6 3 5 7 1 5 3 3 6 F 0 5 2 2 3 7 1 1 3 3 3 8 1 1 6...

Page 16: ...ch temperature Approach Values for TXV Systems Approach value is the liquid line temperature minus the outdoor ambient temperature 1 F NOTE For best results use the same digital thermometer to check b...

Page 17: ...Strip Connections High Pressure Switch Defrost Thermostat Low Pressure Switch Reversing Valve Compressor Delay Pins Test Pins K1 Relay K2 Relay FAN DS1 L 24V P2 P5 O OUT DF Y1 OUT HI PS U1 U2 DS2 K3 R...

Page 18: ...The delay helps to protect the compressor from short cycling in case the power to the unit is interrupted or a pressure switch opens The delay is bypassed by placing the timer select jumper across th...

Page 19: ...l a n i m r e t e l u d o m t a t n e s e r p s i e g a t l o v y l p p u S P I R T d e R d n a m e d t a t s o m r e h T t n e s e r p s i 1 Y l a n g i s r o s s e r p m o c e h t t u b g n i n n u...

Page 20: ...i d n i w r o s s e r p m o C 7 e c n a t s i s e r g n i d n i w r o t o m r o s s e r p m o c k c e h C T R E L A w o l l e Y h s a l F 6 e d o C t i u c r i C t r a t S n e p O n u r n i y l n o t...

Page 21: ...o t d e t c e n n o c s i l a n i m r e t Y y f i r e V f f o n e h w C A V 5 0 w o l e b s l l a f s l i o c D E L T R E L A d n a D E L P I R T r e h t e g o t g n i h s a l f C A V 8 2 9 1 h t i w...

Page 22: ...pet urine cottonwood seeds etc Visually inspect the refrigerant lines and coils for leaks Check wiring for loose connections Check voltage at the indoor and outdoor units with units operating Check a...

Page 23: ...lean the outdoor coil with an unpressurized water hose to remove surface contaminants and debris It may be necessary to flush the outdoor coil more frequently if it is exposed to substances which are...

Page 24: ...and provides temporary heat supplied by the auxiliary heat Indicating Light Most heat pump thermostats have an amber light which indicates when the heat pump is operating in the emer gency heat mode...

Page 25: ...Fan ______________ Maximum Fuse or Circuit Breaker________________________ Electrical Connections Tight Indoor Filter Clean Supply Voltage Unit Off ________________ Indoor Blower RPM _____________ S P...

Page 26: ...SE INJURY OR DEATH UNIT MUST BE GROUNDED IN ACCORDANCE WITH NATIONAL AND LOCAL CODES LINE VOLTAGE FACTORY INSTALLED LINE VOLTAGE FIELD INSTALLED 24 VOLT FACTORY INSTALLED CLASS II VOLTAGE FIELD INSTAL...

Page 27: ...ly to you Only Warranty This written Limited Warranty is the only warranty made by the warrantor this warranty is in lieu of and excludes all other warranties express or implied The warrantor does not...

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