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12

SPLIT SYSTEMS

AIR CONDITIONING AND HEAT PUMP HOMEOWNER’S

 

ROUTINE MAINTENANCE RECOMMENDATIONS

We strongly recommend a bi-annual maintenance checkup be performed

before the heating and cooling seasons begin by a 

qualified servicer

.

Replace or Clean Filter

IMPORTANT NOTE: 

Never operate unit without a filter installed

as dust and lint will build up on internal parts resulting in loss
of efficiency, equipment damage and possible fire.

An indoor air filter must be used with your comfort system. A
properly maintained filter will keep the indoor coil of your com-
fort system clean. A dirty coil could cause poor operation and/
or severe equipment damage.

Your air filter or filters could be located in your furnace, in a
blower unit, or in “filter grilles” in your ceiling or walls. The
installer of your air conditioner or heat pump can tell you where
your filter(s) are, and how to clean or replace them.

Check your filter(s) at least once a month. When they are
dirty, replace or clean as required. Disposable type filters should
be replaced. Reusable type filters may be cleaned.

You may want to ask your dealer about high efficiency filters.
High efficiency filters are available in both electronic and non-
electronic types. These filters can do a better job of catching
small airborne particles.

Compressor

The compressor motor is hermetically sealed and does not
require additional oiling.

Motors

Indoor and outdoor fan motors are permanently lubricated and
do not require additional oiling.

Clean Outside Coil (Qualified Servicer Only)

Air must be able to flow through the outdoor unit of your com-
fort system. Do not construct a fence near the unit or build a
deck or patio over the unit without first discussing your plans
with your  dealer or other qualified servicer. Restricted airflow
could lead to poor operation and/or severe equipment damage.

Likewise, it is important to keep the outdoor coil clean. Dirt,
leaves, or debris could also restrict the airflow. If cleaning of
the outdoor coil becomes necessary, hire a qualified servicer.
Inexperienced people could easily puncture the tubing in the
coil. Even a small hole in the tubing could eventually cause a
large loss of refrigerant. Loss of refrigerant can cause poor
operation and/or severe equipment damage.

Do not use a condensing unit cover to “protect” the outdoor
unit during the winter, unless you first discuss it with your
dealer. Any cover used must include “breathable” fabric to avoid
moisture buildup.

Check the thermostat to confirm that it is properly set.

Wait 15 minutes. Some devices in the outdoor unit or in
programmable thermostats will prevent compressor op-
eration for awhile, and then reset automatically. Also,
some power companies will install devices which shut
off air conditioners for several minutes on hot days. If
you wait several minutes, the unit may begin operation
on its own.

T

O

 

AVOID

 

THE

 

RISK

 

OF

 

EQUIPMENT

 

DAMAGE

 

OR

 

FIRE

INSTALL

THE

 

SAME

 

AMPERAGE

 

BREAKER

 

OR

 

FUSE

 

AS

 

YOU

 

ARE

REPLACING

.  I

F

 

THE

 

CIRCUIT

 

BREAKER

 

OR

 

FUSE

 

SHOULD

 

OPEN

AGAIN

 

WITHIN

 

THIRTY

 

DAYS

CONTACT

 

A

 

QUALIFIED

 

SERVICER

TO

 

CORRECT

 

THE

 

PROBLEM

.

I

F

 

YOU

 

REPEATEDLY

 

RESET

 

THE

 

BREAKER

 

OR

 

REPLACE

THE

 

FUSE

 

WITHOUT

 

HAVING

 

THE

 

PROBLEM

 

CORRECTED

,

YOU

 

RUN

 

THE

 

RISK

 

OF

 

SEVERE

 

EQUIPMENT

 

DAMAGE

.

B

EFORE

 C

ALLING

 Y

OUR

 S

ERVICER

Check the electrical panel  for tripped circuit breakers
or failed fuses. Reset the circuit breakers or replace fuses
as necessary.

Check the disconnect switch near the indoor furnace or
blower to confirm that it is closed.

Check for obstructions on the outdoor unit . Confirm that
it has not been covered on the sides or the top. Remove
any obstruction that can be safely  removed. If  the unit
is covered with dirt or debris, call a qualified servicer to
clean it.

Check for blockage of the indoor air inlets and outlets.
Confirm that they are open and have not been blocked
by objects (rugs, curtains or furniture).

Check the filter. If it is dirty, clean or replace it.

Listen for any unusual noise(s), other than normal oper-
ating noise, that might be coming from the outdoor unit.
If you hear unusual noise(s) coming from the unit, call a
qualified servicer.

Summary of Contents for Amana VSZ14

Page 1: ...ecifications electrical characteristics and accessories are correct prior to installation The distribu tor or manufacturer will not accept claims from dealers for trans portation damage or installation of incorrectly shipped units Codes Regulations This product is designed and manufactured to comply with national codes Installation in accordance with such codes and or prevailing local codes regula...

Page 2: ...or springs can be installed between the con densing unit legs or frame and the roof mounting assembly to reduce noise vibration NOTE These units require special location consideration in areas of heavy snow accumulation and or areas with prolonged continuous subfreezing temperatures Heat pump unit bases have cutouts under the outdoor coil that permit drainage of frost accumulation Situate the unit...

Page 3: ...ed for line lengths of 79 feet or less to obtain optimum performance For alternate line sizing options or runs of more than 79 feet refer to Remote Cooling Service Manual or TP 107 Long Line Set Application R 410A or contact your distributor for assistance Cond Unit Tons Suct Liq Suct Liq Suct Liq 1 1 2 5 8 1 4 3 4 3 8 3 4 3 8 2 5 8 1 4 3 4 3 8 3 4 3 8 2 1 2 5 8 1 4 3 4 3 8 7 8 3 8 3 3 4 3 8 7 8 3...

Page 4: ...dented lines will cause poor performance or compressor damage Do NOT make final refrigerant line connection until plugs are removed from refrigerant tubing NOTE Before brazing verify indoor piston size by checking the piston kit chart packaged with indoor unit Leak Testing Nitrogen or Nitrogen Traced To avoid the risk of fire or explosion never use oxygen high pressure air or flammable gases for l...

Page 5: ...tch located near the unit do not install the switch on the unit Refer to the installa tion instructions supplied with the indoor furnace air handler for specific wiring connections and indoor unit configuration Like wise consult the instructions packaged with the thermostat for mounting and location information Overcurrent Protection The following overcurrent protection devices are approved for us...

Page 6: ...If disabling this function is desired move the jumper from DLY to NORM on the defrost control Adequate refrigerant charge for the matching HSVTC evapora tor coil and 15 feet of lineset is supplied with the condensing unit If using evaporator coils other than HSVTC coil it may be necessary to add or remove refrigerant to attain proper charge If line set exceeds 15 feet in length refrigerant should ...

Page 7: ... Charge Adjustment The outdoor temperature must be 60 F or higher Set the room thermostat to COOL fan switch to AUTO and set the tem perature control well below room temperature Purge gauge lines Connect service gauge manifold to base valve service ports Run the system on low stage for two stage units for 10 minutes to allow pressures to stabilize then check subcooling and or superheat as detailed...

Page 8: ...URATED SUCTION TEMPERATURE ºF LIQUID PRESSURE PSIG R 22 R 410A 200 101 70 210 105 73 220 108 76 225 110 78 235 113 80 245 116 83 255 119 85 265 121 88 275 124 90 285 127 92 295 130 95 305 133 97 325 137 101 355 144 108 375 148 112 405 155 118 415 157 119 425 n a 121 435 n a 123 445 n a 125 475 n a 130 500 n a 134 525 n a 138 550 n a 142 575 n a 145 600 n a 149 625 n a 152 SATURATED LIQUID PRESSURE...

Page 9: ...7 to 9 ºF and super heat of 7 to 9 ºF a If subcooling and superheat are low adjust TXV to 7 to 9 ºF superheat then check subcooling NOTE To adjust superheat turn the valve stem clockwise to increase and counter clockwise to de crease b If subcooling is low and superheat is high add charge to raise subcooling to 7 to 9 ºF then check super heat c If subcooling and superheat are high adjust TXV valve...

Page 10: ...it with Voltmeter Low Voltage Test Voltage Faulty Evap Fan Motor Repair or Replace Shorted or Grounded Fan Motor Test Motor Windings Improper Cooling Anticipator Check Resistance of Anticipator Shortage of Refrigerant Test For Leaks Add Refrigerant Restricted Liquid Line Remove Restriction Replace Restricted Part Open Element or Limit on Elec Heater Test Heater Element and Controls Dirty Air Filte...

Page 11: ...11 THIS PAGE LEFT INTENTIONALLY BLANK ...

Page 12: ... airflow If cleaning of the outdoor coil becomes necessary hire a qualified servicer Inexperienced people could easily puncture the tubing in the coil Even a small hole in the tubing could eventually cause a large loss of refrigerant Loss of refrigerant can cause poor operation and or severe equipment damage Do not use a condensing unit cover to protect the outdoor unit during the winter unless yo...

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