York 035-09319 User Manual

515.00-O1Y (591)

L

035-09319

®

INFORMATION

SPLIT SYSTEM HEAT PUMP

USER’S

MANUA

Congratulations . . .Congratulations . . .

On your purchase of our Heat Pump. This energy efficient system has been precision designed , manufactu red of high quality
materials and has passed many vigorous inspections and tests to ensure years of satisfactory service.

Please read this booklet thoroughly. It will help you unders tand your heat pump and will tell you how to operate it ef ficiently
and how to obtain the greatest measure of comfort at the lowest operating expense.

We appreciate your interest in our products and your decision to purchase our Heat Pump. Enjoy your comfort.

This Heat Pump has been specially de­veloped and built as a heat pump - to
meet the dual needs of heating and cool­ing. It’s not just an air conditioner with
extra parts. That’s why you can rely on
efficient, trouble-free operation.

Your system is fully automatic. Set the
thermostat and forget it. And it’s auto­matically protected from damage by
voltage fluctuations or excessive heat­ing or cooling demands.

Your split system heat pump consists of
two units - one installed outdoors and
one installed indoors. The indoor unit
may be installed in a basement, attic, or
crawl space.

HOW YOUR HEAT
PUMP WORKS

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 a heat pump.
During the cooling cycle, your system
will remove heat and humidity from your
home and will transfer this heat to the
outdoor air.

During the heating cycle, your system
will remove heat and humidity from the
outdoor air and will transfer this heat to
your home. This is possible because
even 0°F outdoor air contains a great
deal of heat. Remember that your heat
pump doesn’t generate much heat, it
merely transfers it from one place to
another.

Set your thermostat for heating or for
cooling. Then set it for the desired tem­perature. Find the temperature that is
most comfortable for you, and then
leave your thermostat alone. Manually
moving the thermostat up or down to
extreme settings will not speed-up tem­perature changes. Avoid moving the
thermostat up during heating - particu­larly where a demand type electric meter
is installed. This w ill increase your oper­ating cost substa nti a lly.

CAUTION: 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.

HEATING CYCLE

With the thermostat in the heating position,
and the outdoor temperature in the range
of 20 to 30° or below, the outdoor unit will
generally run 100% of the time.

All E*FH systems are equipped with bal­ance point control to provide even mor e
efficient operation. This control will pre­vent the electric heater from being ener­gized when the outdoor air is above
some predetermined temperature set­ting (0 to 45°F). At higher temperatures,

your system will provide all the heat your
home will ever need. At lower tempera­tures, the supplemental electric heat will
be energized to keep your home com­fortable.

When the outdoor air is cool and moist,
frost may form on the surface of your
outdoor coil. When this frost builds to a
certain point, your system will switch to
a defrost cycle. Although you may feel
cooler air coming from your registers,
DO NOT adjust your thermostat. The
frost will melt quickly, and your system
will return to normal operation automat­ically.

COOLING CYCLE

Switch your thermostat to cool. Select a
comfortable thermostat temperature
setting, typically between 75 and 80°.
Comfort sensations vary with individu­als. The lower the indoor temperature
desired, the greater will be the number
of hours your unit must operate.

Set your thermostat 2 or 3 °F below nor ­mal several hours before entertaining
large groups during hot weather. People
give off considerable heat and moisture.

On an extremely hot day, the indoor
temperature may rise 3 to 6°F above the
thermostat setting. Properly selected
equipment does not have the capacity
to maintain a constant indoor tempera­ture during this peak load. Over-sizing
your system to handle this peak load
isn’t practical because the oversized
system would operate much less effi­ciently at all other conditions.

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,

2

Code: SBY

515.00-O1Y

Supersedes: Nothing

TROUBLESHOOTING GUIDE

PROBLEM CHECK: ACTION TO TAKE

1. Thermostat for proper setting. Set thermostat to proper setting. -

2. Circuit breakers and fuses. Reset circuit breakers - Replace blown fuses. -

3. Check Outdoor unit for dirty coil. (Cooling) Clean coil, see “Coil Care” section. 2

NO HEAT

OR

COOLING

4. Outdoor unit for snow accumulation. (Heat ing ) Remove snow. 5

5. Indoor unit for dirty filter. (Heating) Clean or Replace, see “Filter Care” sect i on. 2

6. Emergency Heat Light Status on thermos tat.
E*FB - Light on = Malfunction Check 1 thru 5, call qualified serv i c e man. -

E*FH - Light flashing = Malfunction

Check 1 thru 5, call qualified service man.
with Fault Code. 3,4,7,8,9

After completing the checks and actions above, turn thermostat to “OFF” for 10 seconds and
attempt restart. Wait 5 minutes. If system does not start, call qualified serviceman.

On E*FH models, obtain the fault code number of times the Emergency Heat light on the
thermostat flashes between pauses.

FAULT

CODE

CLEARANCES

The minimum clearances shown below
must be maintained should any patio or
yard improvements be done around the
outdoor unit.

TOP 48" SIDES 12"

REAR 12" FRONT * 24"

* Service Access Panel

POWER INTERRUPTION

When ice, snow, wind storms, etc. dis­rupt electrical power supply to your
house, proceed as follows:

HEATING SEASON

1. Switch thermostat to Emergency
Heat. Note: There will be no heat avail­able until power is reestablished.

2. Leave on Emergency Heat for at
least 8 hours after electrical power is
reestablished if the power was off more
than 8 hours.

3. Switch thermostat back to Heating or
Auto.

COOLING SEASON

1. Switch thermostat to Off position.

2. Do not switch to Cooling or Auto until
electrical power has been reestablished
for 8 hours if the power was off more
than 8 hours.

SERVICE CALLS

There are a few instances where you
can avoid unnecessary service calls.

(See Troubleshooting Guide above).
For E*FB systems use the guide but
disregard the Fault Code column. The
flashing light on the system thermostat
of E*FH units is capable of providing you
with time and money saving information.
The Fault code numbers listed can be
handled by taking the corrective action
indicated. Call qualified serviceman if
displaying fault code numbers not
listed.

PARTS INFORMATION

Replacement parts are available from
local YORK contractor/dealers or the
nearest YORK distribution center.

CHARACTERISTICS
OF HEAT PUMPS

A CONSTANT HEAT

Heat pumps have a noticeably cooler
supply air temperature than furnaces.
The common practice of over-sizing fur­naces contributes to an “off-and-on­again” operation with short blasts of hot
supply air. The heat pump system is

sized more closely to the heating needs
of your home. Heat is supplied at a lower
temperature over a longer period of time
to provide a more constant heat, and it
may give you the impression that your
system “never stops running".

WATER RUN-OFF
During the heating cycle, in mild weather

you may notice water running off the
outdoor coil. Moisture from the air is
condensed on the outside surface of the
coil where it gathers and runs off.

No need for alarm, your unit has not
sprung a leak!

OUTDOOR COIL
DEFROSTING

At certain outdoor conditions (low tem­perature, high humidity), frost may build
up on the coil of the outdoor unit.

In order to maintain heating efficiency,
the system will automatically defrost it­self.

Steam rising from the outdoor unit
is normal and is an indication of proper
operation.

for a few minutes. When the defrost
cycle is completed, the system will auto­matically switch back to heating. Electric
heat is automatically energized to main­tain comfort during defrost.

The vapor cloud will only last

Unitary Products Group
P.O. Box 1592, York, Pennsylvania USA 17405-1592
Subject to change without notice. Printed in U.S.A.
Copyright  by York International Corporation 1995. All Rights Reserved.