York PCE4 User Manual

USER’S INFORMATION MANUAL

®®

SINGLE PACKAGE
AIR CONDITIONER/ELECTRIC

MODELS: PCE4

TABLE OF CONTENTS

CONTACT INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

HOW YOUR SYSTEM WORKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

COOLING CYCLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

HEATING CYCLE (HEAT PUMP) . . . . . . . . . . . . . . . . . . . . . . . . . . 1

HEATING CYCLE (ELECTRIC HEAT) . . . . . . . . . . . . . . . . . . . . . . 1

System Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

SETTING THE THERMOSTAT . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

THERMOSTATS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

YOUR KEY TO COMFORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

COOLING AND HEATING (HEAT PUMP) . . . . . . . . . . . . . . . . . . .2

MANUAL CHANGE-OVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

PROGRAMMABLE ELECTRONIC THERMOSTATS . . . . . . . . . . .2

FAN OPERATION SELECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

AUTO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

CONTACT INFORMATION

• Go to website at www.york.com, then click on “Contact Us” and
follow the instructions.

• Contact us by mail:

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

POWER FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

SYSTEM OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

MANUAL CHANGE-OVER THERMOSTAT . . . . . . . . . . . . . . . . . .2

ELECTRONIC THERMOSTAT . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

TO MAXIMIZE OPERATING EFFICIENCY . . . . . . . . . . . . . . . . . . . . .3

HEATING CONSERVATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

COOLING CONSERVATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

CARE OF SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

COIL CARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

SERVICE CALLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

FILTER CARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

CLEARANCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

PARTS INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

SOME EFFICIENCY DO’S & DON’TS . . . . . . . . . . . . . . . . . . . . . . . . .3

Johnson Controls Unitary Products

Consumer Relations

5005 York Drive

Norman, OK 73069

The manufacturer recommends that the user read this manual
and keep the manual for future reference.

SAFETY

This product must be installed and serviced by a qualified installer or
service agency. Improper installation, adjustment, alteration, service
or maintenance can cause injury or property damage.

HOW YOUR SYSTEM WORKS

COOLING CYCLE

If your hand is wet and you blow on it, it feels cool because some of the
moisture is evaporating and becoming a vapor. This process requires
heat. The heat is being taken from your hand, so your hand feels cool.

That’s what happens with an air conditioner. During the cooling cycle,
your system will remove heat and humidity from your home and will
transfer this heat to the outdoor air.

HEATING CYCLE (ELECTRIC HEAT)

Your unit may be equipped with an optional electric heating element(s).
This heating element(s) will provide heat to your home during calls for
heat.

System Operation

Your thermostat puts full control of the comfort level in your home at
your fingertips. DO NOT switch your thermostat rapidly ON and OFF or
between HEAT to COOL. This could damage your equipment. Always
allow at least 5 minutes between changes.

SETTING THE THERMOSTAT

The main power to the system must be kept ON at all times to prevent
damage to the outdoor unit compressor. If necessary, the thermostat
control switch should be used to turn the system OFF. Should the
main power be disconnected or interrupted for 8 hours or longer, DO
NOT attempt to start the system for 8 hours after the power has been
restored to the outdoor unit. If heat is needed during this 8 hour
period, use emergency heat.

THERMOSTATS

YOUR KEY TO COMFORT

Although thermostats may vary widely in appearance, they are all
designed to perform the same basic function: to control the operation of
your air conditioning and heating system. Regardless of size or shape,
each thermostat will feature a temperature indicator; a dial, arm, or
push button for selection of the desired temperature; a fan switch to
choose the indoor fan operation; and a comfort switch for you to select
the system mode of operation.

Only approved thermostats have been tested and are fully compatible
with this equipment. Please be aware that many different thermostats

operate on batteries or “power stealing” principles. These types of ther­mostats can not be supported as trouble free when used with this product.

A complete operating instruction is provided by the manufacturer for
each thermostat. Familiarize yourself with its proper operation to obtain
the maximum comfort with minimum energy consumption.

Johnson Controls Unitary Products 5126745-UUM-A-0615

5126745-UUM-A-0615

NOTICE

COOLING AND HEATING

You may have either a manual change-over type, or a programmable
electronic type thermostat.

MANUAL CHANGE-OVER

Manual change-over simply means that the comfort switch must be
manually positioned every time you wish to switch from the cooling to
heating or heating to cooling modes of operation.

PROGRAMMABLE ELECTRONIC THERMOSTATS

The computerized electronic thermostat is actually a sophisticated elec­tronic version of a manual change-over type. This thermostat includes
features which allow “set-back” temperature variations for periods of
sleep, or while you are away during the day, and means energy savings
for you. The thermostat also features a digital clock.

FAN OPERATION SELECTION

A multi-position fan switch allows you to choose the type of fan opera­tion of the indoor fan.

AUTO

With the thermostat fan switch set to “AUTO”, the fan will run intermit­tently as required for either heating or cooling. This position will provide
the lowest operating cost. If you purchased one of our thermostats, they
may have an Intelligent fan mode which continually circulates the air
during occupied modes or when you are at home, and can cycle the fan
during unoccupied mode or during the night while you sleep to further
conserve energy.

ON

CONTINUOUS FAN OPERATION: With the thermostat fan switch set to
“ON”, the indoor fan will not shut off. However, the cooling (AC) or heat­ing (heat pump) systems will still operate as required by room tempera­tures. This provides continuous air filtering and more even temperature
distribution to all conditioned spaces.

FAN ONLY OPERATION: On moderate days, usually during spring and
fall, when neither heating nor cooling is required, you may want to run
only the fan to ventilate, circulate and filter the air in your home or build­ing. Set the comfort control switch to “OFF” and the fan switch to “ON”.
Be sure to return the switches to their original positions for normal oper­ation.

START-UP

The maximum and minimum conditions for operation must be observed
to assure a system that will give maximum performance with minimum
service.

TABLE 1:

CoolDBHeatDBCoolDBHeat

1.

2.

Application Limitations

Air Temperature at

Outdoor Coil, °F

Min. Max. Min. Max.

DB

1

45

-10 115 75 57

Optional low ambient kit provides accessory hardware to convert unit to
operate in cooling down to 0°F.

Operation below this temperature is permissible for a short period of ti me,
during morning warm-up.

Air Temperature at

Indoor Coil, °F

WB

Cool

DB

Heat

50

2

WB

Cool

72 80

DB

Heat

The comfort control switch is assumed to be in the “OFF” position. If the
main power supply to the outdoor and indoor units is off, turn the appro­priate disconnects to the “ON” position. Place the system into operation
as follows.

1. Set temperature adjustment to the desired temperature on your
thermostat.

COOLING - The higher the setting, the lower the amount of energy con­sumed. Federal Guidelines recommend a setting of 78 °F.

HEATING - The lower the setting, the lower the amount of energy con­sumed. Federal guidelines recommend a setting of 65 °F or lower.

If your cooling and heating temperature adjustments are separate, be
sure to set both.

2. After considering “Fan Operation Selection” above, select and set
the fan operation mode you desire.

3. Move the comfort control switch to the desired mode of operation
(Cooling or Heating) found on your particular thermostat.

POWER FAILURE

When accidents, wind storms, etc. disrupt electrical power supply to
your house, switch thermostat to “OFF” position.

SYSTEM OPERATION

MANUAL CHANGE-OVER THERMOSTAT

COOLING YOUR HOME: With the comfort control switch in the
“COOL” position, the system will operate as follows: When the indoor
temperature rises above the level indicated by the temperature adjust­ment setting, the system will start. The outdoor unit will operate and the
indoor fan will circulate the cooled, filtered air. When the room tempera­ture is lowered to the setting selected, the system will shut off.

HEATING YOUR HOME: If your system includes an optional electric
heat kit and the comfort control switch is in the “HEAT” position, the sys­tem will operate as follows: When the indoor temperature drops below
the level indicated by the temperature adjustment setting, the system
will start. The heating system will operate and the indoor fan will circu­late the filtered air. When the room temperature rises to the setting
selected, the system will shut off. Whether heating or cooling, the fan
will continue to operate if the fan switch was set in the “ON position. The
“AUTO” setting on the fan switch will allow the fan to shut off when your
system does.

ELECTRONIC THERMOSTAT

The computerized electronic thermostat, when programmed, will func­tion automatically to operate the system as follows: When the indoor
temperature rises above the higher (COOL) setting, the outdoor unit will
operate and the indoor fan will circulate the cooled, filtered air. When
the room temperature is lowered to the selected level, the system will
shut off. The indoor fan will either shut off or run continuously, depend­ing upon your choice of fan switch setting. When the indoor tempera­ture drops below the lower (HEAT) setting, the heating system will
operate, and the indoor fan will circulate the heated, filtered air. When
the indoor temperature rises to the selected setting, the system will shut
off. The indoor fan will either shut off or run continuously, depending
upon your choice of fan switch setting.

2 Johnson Controls Unitary Products