Upflow All-In-One Self-Contained Heat Pump

Upflow All-In-One Self-Contained Heat Pump
Upflow
All-In-One
Self-Contained
Heat Pump
USER’S
INFORMATION
MANUAL FOR
OPERATION
AND
MAINTENANCE
OF YOUR NEW
HEAT PUMP
NOTE TO
INSTALLER:
This manual
must be
left with the
equipment user.
1
Supply-Air Outlet
2
Electric Heat Elements
3
Indoor-Air Blower
4
Disconnect Box and Controls Section
5
Schrader Valve Access
6
Reversing Valve
1
9
2
10
3
11
12
4
13
5
7
Outdoor-Air Intake
6
8
Compressor
7
9
Line Connection Knockouts
8
10
Indoor-Air Coil
11
Return-Air Filter (Behind Return-Air Grille)
12
Return-Air Grille
13
Outdoor-Air Blower and Outdoor-Air Intake
(Outdoor-Air Intake is Behind Blower)
14
Outdoor-Air Coil
15
Condensate Drain Outlet
14
15
Fig. 1—Heat Pump Components
2
WELCOME TO
EFFICIENT HOME
HEATING AND
COOLING COMFORT
Congratulations on your excellent
choice and sound investment in home
heating and cooling comfort!
Your new heat pump unit represents the
latest in engineering development and is
one of the best self-contained units
available today.
Your new unit is among the most
energy-efficient and reliable air
conditioning products available today.
To assure its dependability, spend just a
few minutes with this booklet now.
Learn about the operation of your heat
pump, and the small amount of
maintenance it takes to keep it operating
at its peak efficiency.
With minimal care, your new heat pump
will provide you and your family with
heating and cooling comfort—both now
and for years to come.
! WARNING
Improper installation, adjustment,
alteration, service, maintenance,
or use can cause explosion, fire,
electrical shock, or other conditions which may cause personal
injury or property damage. Consult a qualified installer, service
agency, or your distributor or
branch for information or assistance. The qualified installer or
agency must use factory-authorized kits or accessories when
modifying this product.
! WARNING
To prevent personal injury, death,
or property damage, read and follow all instructions and warnings,
including labels shipped with or
attached to unit before operating
your new heat pump.
YOUR COMFORT
SYSTEM
Identifying Your System
Take the time to familiarize yourself
with the type of system you have. This
knowledge will be of use in
understanding the basic operation of
your new heat pump.
A self-contained unit has an indoor-air
and an outdoor-air coil, both contained
within a single cabinet. The unit also has
electric heat elements. (See Fig. 1.)
The unit has a rating plate affixed to the
lower right corner of the front panel
which provides necessary information
for specific identification of a unit. You
should familiarize yourself with the
product, model, and serial numbers
listed on the rating plate.
IMPORTANT FACTS
To better protect your investment and to
eliminate unnecessary service calls,
familiarize yourself with the following
facts:
• Your heat pump system should never
be operated without a clean air filter
properly installed. Plan to inspect the
filter periodically. A clogged air filter
will increase operating costs and
shorten the life of the unit. We
recommend changing the indoor-air
filter every month.
• Supply-air and return-air registers
should not be blocked. Drapes,
furniture, and toys are some of the
items commonly found obstructing
registers. Restricted airflow reduces
the unit’s efficiency and life span.
• For your new heat pump to function
properly, it MUST have a constant
outdoor-air supply. Outdoor air is
usually supplied through a grille in an
outside wall of the home. Make sure
this grille is NOT obstructed in any
way.
• Your multipurpose indoor thermostat
is the control center for your home
comfort system. You should
familiarize yourself with its proper
operation. Attempting to control the
system by other means—for instance,
switching the electrical supply power
ON and OFF—may cause damage to
the unit.
• With some thermostats, increasing
the thermostat more than 2° during
heating mode may cause the
supplemental electric heaters to be
turned on to satisfy the thermostat.
Needless use of supplemental heat
reduces potential energy savings.
• You may find that you can maintain
greater personal comfort by operating
3
the fan continuously. “Air pockets’’
can form due to the structure of the
house, placement of registers, etc.
These air pockets may be too cool or
warm for your liking. Continuous fan
operation minimizes any temperature
differences. Also, systems equipped
with electronic air cleaners and/or
humidifiers offer the added benefits of
having the air continuously cleaned
year-round, and humidified during the
winter season.
• Your heat pump will remove
humidity from your home during the
cooling season. After a few minutes
of operation, water should trickle
from the condensate drain of the
cooling coil. Check this occasionally
to be sure the drain system is not
clogged. Of course, don’t expect to
see much drainage if you live in a
very dry environment. It is important
to make sure the condensate drain
tube is piped to an appropriate
location. Failure to do so can create a
high moisture problem, or excessive
defrosting may occur.
• On initial start-up of your new heat
pump, allow a minimum of 72 hr of
run time for mechanical wear in to
achieve peak performance. In the
summer, allow 24 hr for removal of
moisture.
• If you have installed a heat pump for
the first time, you should be aware of
certain operational characteristics that
are normal for all heat pumps. If you
have lived with an electric, gas, or oil
furnace in the past, you will notice that
your heat pump operates differently.
Air entering a conventional furnace at
60°F can be heated 60° to 100°F. This
would make the warm air exiting the
registers 120° to 160°F depending on
the system. Your heat pump warms that
same 60°F air 20° to 25°F. The warm
air exiting the registers is 80° to 85°F.
This air may feel cool because it is
slightly less than your body
temperature. However, it is sufficiently
warm to keep you comfortable and is
adding heat to your home. A heat pump
will run for much longer periods of
time than a conventional furnace. This
longer operational time is normal for
all heat pumps and is saving you
LCD READOUT DISPLAYS
CURRENT ROOM TEMPERATURE,
DESIRED ROOM TEMPERATURE,
UNIT MODE SETTING,
AND FAN MODE SETTING.
TEMPERATURE SELECTOR
THERMOMETER
80
70
60
50
80
70
MODE
60
50
EM HEAT HEAT OFF COOL
SYSTEM SWITCH
FAN AUTO
FAN
MODE BUTTON SELECTS
BETWEEN OFF, HEAT, COOL
AND AUTO OPERATION. HEAT
PUMP THERMOSTAT MODELS
ALSO INCLUDE AN EMERGENCY
HEAT MODE.
RESET/FILTER
ON
FAN BUTTON CHOOSES BETWEEN
ON OR AUTO FAN OPERATION.
FAN SWITCH
RESET FILTER BUTTON
RESTARTS THE TIMER
UP AND DOWN BUTTONS
THAT CALCULATES THE
INCREASE OR DECREASE
NEXT AIR FILTER CHANGE
THE DESIRED TEMPERATURE
OR CLEANING.
SETTINGS.
Fig. 2—Typical Manual Changeover
Thermostat
energy in comparison to a conventional
furnace. On days with outdoor
temperatures below 40°F, it is normal
for the heat pump to run for extended
periods of time and may be assisted by
auxiliary heat. Once you understand
the operation of your new heat pump,
you will appreciate its constant, even
heat and lower energy consumption.
• With a heat pump unit, frost or ice may
build up on the outdoor-air coil during
long periods of cold, humid weather.
When this occurs, your heat pump
senses this condition and goes through
a defrost cycle. During a defrost cycle,
the outdoor-air blower is turned off,
and the reversing valve reverses the
flow of gas through the outdoor-air coil
so it is heated and the frost or ice melts.
You may notice the defrost cycle inside
your home by a faint click and hissing
sound and a slight change in the sound
created by the blower as the defrost
cycle begins and ends. During the
defrost cycle, you may also notice that
the air is quickly heated as the defrost
cycle ends. Outside the home, a cloud
of water vapor created by the melting
frost or ice may be visible as it is
exhausted. This is normal and keeps
the unit working efficiently. Do not be
alarmed!
DRAIN REQUIREMENTS
The condensate drain must be trapped
and routed to a suitable drain location.
Drain pipe must be sloped downward
and protected from freezing.
NOTE: Make sure the unit is operated in
a level position. If not, condensate water
may leak out and damage the floor.
Fig. 3—Typical Autochangeover
Thermostat
OPERATING YOUR AIR
CONDITIONER OR
HEAT PUMP
THERMOSTAT OPERATION
The operation of your heat pump system
is controlled by the indoor thermostat.
You simply adjust the indoor
temperature, and it maintains the indoor
temperature at the level you select. Most
thermostats have 3 controls: a
temperature control selector, a FAN
control, and a SYSTEM or MODE
control. (See Fig. 2 or 3.)
The temperature control selector is a
lever or set of buttons that allows you to
establish the degree of temperature that
you wish to maintain for your personal
comfort. Some thermostats possess 2
temperature control selectors: 1 for
setting the temperature desired during
the cooling cycle, and 1 for setting the
heating operation temperature.
Typical settings are 78°F for cooling and
68°F for heating.
The FAN control offers 2 options for
controlling the indoor-air blower:
AUTO and ON. When the FAN control
is set to AUTO, the blower will operate
only while the thermostat operates the
cooling or heating equipment. When the
FAN control is set to ON, the blower
will operate continuously—regardless
of whether cooling or heating
equipment is operating. This setting
allows for continuous air circulation and
filtration.
The SYSTEM or MODE control on
your thermostat offers the following
selections: COOL, OFF, HEAT, and EM
HEAT. Neither the cooling nor heating
equipment will operate when the
4
SYSTEM or MODE control is set
to OFF. With the SYSTEM or
MODE control set to COOL, your
heat pump will operate in cooling
mode. With the SYSTEM or
MODE control set to HEAT, your
heat pump will operate in heating
mode.
Your heat pump system also includes
a supplemental electric heating source.
The SYSTEM or MODE control
options HEAT and EM HEAT
provide convenient selection between
the 2 heating appliances. The heat
pump will operate when SYSTEM
or MODE control is set to HEAT.
Electric heat may also be utilized
on cold days to supplement heat
pump heating. With the SYSTEM
or MODE control set to EM HEAT,
the heat pump is turned off and the
supplemental electric heat is
activated. The unit is now operating
as an electric furnace.
On heat pump systems, the wall
thermostat and outdoor thermostat
regulate the use of supplemental
electric heat to maximize energy
efficiency and your home
comfort.
The AUTO selection found on some
thermostats provides for automatic
changeover between cooling and
heating cycles. With the SYSTEM
or MODE control set to AUTO,
the cooling mode is activated when
the indoor temperature rises above
the thermostat cooling temperature
setting, or the heating mode will be
activated when the indoor temperature
drops below the thermostat setting
for the heating cycle.
COOLING CYCLE
When operating in the cooling cycle,
your unit will operate until the indoor
temperature is lowered to the level you
have selected on the indoor thermostat.
On extremely hot days, your unit will
operate for longer periods of time and
have shorter “off’’ periods than on
moderate days.
The following are typical conditions
that add extra heat and/or humidity to
your home and force your cooling unit
to work longer to keep your home
comfortable:
• Entrance doors are frequently opened
and closed
• Laundry appliances are being
operated
• A shower is running
• More than the usual number of people
are present in the home
• More than the normal number of
electric lights are in use
• Drapes are open on the sunny side of
the home
HEATING CYCLE
With the SYSTEM or MODE control
of your indoor thermostat set to
HEAT, the heating section of your
home comfort system will operate
until room temperature is raised to
the level you have selected. Of course,
the heating unit will have to operate
for longer periods to maintain a
comfortable environment on cooler
days and nights than on moderate
ones. When the demand is greater than
the capacity of the heat pump alone, the
electric heaters will supplement the heat
pump.
DEFROST CYCLE
When your heat pump is providing
heat to your home and the outdoor
temperature drops below 45°F,
moisture may begin to freeze on the
surface of the outdoor-air coil. If
allowed to build up, this ice would
impede airflow across the coil and
reduce the amount of heat absorbed
from outside air. To maintain energyefficient operation, your heat pump has
an automatic defrost cycle.
The defrost cycle will occur only if ice
is sufficient to interfere with normal
heating operation. After ice is melted
from the outdoor-air coil, the unit
automatically switches back to normal
heating mode.
Do not be alarmed if steam or fog
appears at outdoor-air exhaust during
the defrost cycle. Water vapor from the
melting ice may condense into a mist in
the cold outdoor air.
EMERGENCY HEAT
The EM HEAT setting on your
thermostat refers to any supplemental
heating appliance included in your
home comfort system. Operation will
be at reduced capacity.
WHY THE GRILLE
OPENINGS OUTSIDE
YOUR HOME ARE
IMPORTANT
Your new heat pump needs air from
outside. In many applications, this air
is drawn from behind the unit
through ducts, running through an
outside wall. The fan pulls air in through
the unit intake, across a radiator-like
coil, then pushes it out through the unit
exhaust vent. (See Fig. 4.) It is very
important that this air pathway be open
and clear to keep your unit working
correctly.
PERFORMING
ROUTINE
MAINTENANCE
With the proper maintenance and
care, your heat pump will operate
economically and dependably.
Maintenance can be accomplished
easily by referring to the following
directions. However, before
performing maintenance, consider
these important safety
precautions:
MAIN
ON
OFF
Fig. 5—Main Electrical
Disconnect
SUPPLY
INDOOR-AIR
COIL
INDOOR-AIR
BLOWER
AIR FLOWS
THROUGH
INDOOR-AIR
COIL AND
OUT TO
SUPPLY
EXHAUST
• THE DISCONNECT SWITCHES
ON THE UNIT MUST BE
TURNED OFF FOR FILTER
MAINTENANCE. FOR ALL
OTHER SERVICE, POWER MUST
BE DISCONNECTED AT THE
MAIN DISCONNECT BOX.
INTAKE
OUTDOOR-AIR
BLOWER
AIR FLOWS
THROUGH
INTAKE
ACROSS
OUTDOOR-AIR
COIL AND OUT
EXHAUST
DRAIN
OUTLET
OUTDOOR-AIR
COIL
Fig. 4—Airflow Through Unit
• ALTHOUGH SPECIAL CARE
HAS BEEN TAKEN TO
MINIMIZE SHARP EDGES IN
THE CONSTRUCTION OF YOUR
UNIT, BE EXTREMELY
CAREFUL WHEN HANDLING
PARTS OR REACHING INTO THE
UNIT.
CHECK THE AIR FILTER
! CAUTION
Do not vent a clothes dryer near
the outdoor-air intake opening.
Lint from a clothes dryer will collect on the outdoor-air coil and
cause damage. This is not covered by the unit warranty.
5
A dirty air filter reduces the efficiency
of your heat pump and allows lint
and dirt to accumulate on the indoor-air
coil. Lint and dirt on the indoor-air coil
can damage your unit and void the
warranty. The air filter should be
replaced at least once a month.
To remove the filter:
1. Pull up on the handle at the bottom
of the filter grille and raise the lower
edge of the filter grille until it clears
the lower groove in upper
compartment of the unit casing.
(See Fig. 6.)
UNIT EXHAUST AND
OUTDOOR-AIR INTAKE
The unit’s exhaust and outdoor-air
intake must remain clear. Check
the unit exhaust frequently. Keep it
free of all debris, snow, or ice. The
outdoor-air intake should also be kept
free of obstructions. Blocking the
exhaust or outdoor-air intake opening
will reduce the efficiency of your unit,
could damage it, and void your
warranty.
CONDENSATE DRAIN
Fig. 8—Removing Filter from
Filter Grille
Fig. 6—Lifting Filter Grille
! CAUTION
2. Pull out on the handle of filter grille.
(See Fig. 7.)
3. Swing the filter grille out and pull it
down out of the upper groove in
upper compartment of the unit
casing. (See Fig. 7.)
Do not operate your heat pump
without a filter in place, nor block
the front of the filter grill.
Refer to Air Filter Size Chart for air
filter sizes.
AIR FILTER SIZE CHART
1
UNIT SIZE
FILTER SIZE (IN.)
018
15 X 22
024
15 X 22
030
15 X 26
036
15 X 26
2
5. Install new filter and replace filter
grille assembly by reversing items
1 through 4.
INDOOR-AIR COIL
Fig. 7—Removing Filter Grille
4. Slide the wire retainer assembly
from the sides of the filter grille by
pushing outward on the side and
lifting upward on the wire retainer
assembly, then remove the filter
from the filter grille
(See Fig. 8.)
Eventually, minor amounts of lint and
dirt may pass through the filter and
collect on the indoor-air coil. These
minor accumulations can be carefully
vacuumed away with a brush
attachment on a vacuum cleaner.
Care must be taken to prevent
bending the soft fins on the coil.
If the fins are accidentally bent, most
air conditioning service technicians
have a tool for straightening bent fins.
6
The condensate drain must be routed
to a suitable drainage area. Check
the unit condensate drain periodically.
Keep it free of anything that may
block or impede the flow of condensate
water. If there is any accumulation
of foreign matter in the drain pipe,
it should be removed and
cleaned.
BEFORE YOU REQUEST
A “SERVICE CALL’’
• Check disconnect switches. Verify
that circuit breakers are ON or that
fuses have not blown.
• Check for sufficient airflow. Check
the air filter for any accumulations
of dirt. Check for blocked
return-air or supply-air registers. Be
sure registers are open and
unobstructed.
• Check the settings on your indoor
thermostat. If you desire cooling,
see that the temperature control
selector is set below room temperature
and the SYSTEM or MODE control
is set to COOL or AUTO. If you
require heat, be sure the temperature
control selector is set above
room temperature and the
SYSTEM or MODE control is set
to HEAT or AUTO. The FAN
control should be set to ON for
continuous blower operation or
AUTO if you wish blower to
function only while the unit is
operating.
If your comfort system still fails to
operate, contact your servicing dealer
for troubleshooting and repairs. Specify
your apparent problem, and state the
model and serial numbers of your
equipment. (You should have them
recorded on Page 8 of this booklet.)
With this information, your dealer may
be able to offer helpful suggestions over
the phone or save valuable time through
knowledgeable preparation for the
service call.
REGULAR DEALER
MAINTENANCE
• Inspection and, if required,
cleaning of indoor- and outdoor-air
coils.
• Operational check of the system
to determine actual working
condition.
• Inspection of the coil drain pans and
drain lines. Service should include
cleaning if required.
Necessary repair and/or adjustment
should be performed at this time.
Your servicing dealer may offer an
economical service contract that covers
seasonal inspections. Ask for further
details.
• A check of all electrical wiring and
connections.
• A check for secure physical
connections of individual
components within units.
In addition to the routine maintenance
that you perform, your home comfort
system should be inspected regularly by
a properly trained service technician.
The inspection (preferably each year,
but at least every other year) should
include the following:
• Routine inspection of air filter.
Replace or clean as required.
• Inspection and cleaning of the blower
wheel, housing, and motor.
7
FOR THE RECORD
Record the model, product, and serial
numbers of your new equipment in the
spaces provided. This information,
along with the other ready-reference
facts requested, will be necessary
should you ever require information or
service.
INSTALLATION DATA
Unit Model Number:
Unit Serial Number:
Purchased From:
Date of Purchase:
Phone:
Fax:
Address:
City:
State:
Zip:
©1996 Bryant Heating & Cooling Systems, 7310 W. Morris St., Indianapolis, IN 46231
12-96
8
Printed in U.S.A.
Catalog No. BY-3354-239
Cancels: New
OM02-14
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