important - A-1 Appliance Parts

Q6SD SERIES
13 SEER
USER’S MANUAL / INSTALLATION INSTRUCTIONS
SINGLE PACKAGE HEAT PUMP - SINGLE PHASE - R410A
Premium Model Shown
IMPORTANT
Please read this information thoroughly and become familiar with the capabilities and
use of your appliance before attempting to operate or maintain this unit. Keep this
literature where you have easy access to it in the future. If a problem occurs, check the
instructions and follow recommendations given. If these suggestions don’t eliminate
your problem, call your servicing contractor.
These instructions are primarily intended to assist qualified individuals experienced in
the proper installation of this appliance. Some local codes require licensed installation/
service personnel for this type of equipment. Please read all instructions carefully before
starting the installation.
DO NOT DESTROY. PLEASE READ CAREFULLY AND
KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.
2
USER INFORMATION
SAFETY INFORMATION..............................................4
ABOUT THE HEAT PUMP............................................4
OPERATING INSTRUCTIONS......................................4
Cooling Operation......................................................4
Heating Operation......................................................4
Emergency Heat........................................................4
Defrost Operation.......................................................4
Operating the Heat Pump for Automatic
Cooling and Heating...................................................5
Operating Indoor Blower Continuously.......................5
Shutting the Heat Pump Off.......................................5
HEAT PUMP MAINTENANCE......................................5
Regular Cleaning.......................................................5
Before You Call a Technician......................................5
TROUBLESHOOTING..................................................5
WARRANTY INFORMATION........................................5
INSTALLER INFORMATION
SAFETY INFORMATION..............................................6
GENERAL INFORMATION...........................................7
Before You Install this Unit..........................................7
Locating the Heat Pump.............................................7
Field Connections for Electrical Power
Supply........................................................................7
Air Ducts ....................................................................7
Unconditioned Spaces............................................7
Acoustical Duct Work..............................................7
Air Filter Requirements .............................................8
HEAT PUMP INSTALLATION.......................................8
Packaging Removal....................................................8
Rigging & Hoisting......................................................8
Minimum Clearance Requirements............................8
Ground Level..............................................................8
Rooftop.......................................................................9
Horizontal to Downflow Conversion............................9
Condensate Drain .....................................................9
ELECTRICAL WIRING..................................................9
Pre - Electrical Checklist............................................9
Line Voltage................................................................9
Grounding................................................................10
Blower Speed...........................................................10
Defrost Cycle Timer..................................................10
Defrost Control Board..............................................11
Operational Information........................................11
Normal Defrost Procedure....................................11
Defrost Test Procedure.........................................11
Optional Outdoor Thermostat...................................11
Optional Electric Heater Kits....................................11
Thermostat Connections..........................................11
STARTUP & ADJUSTMENTS.................................... 12
Pre - Start Checklist................................................. 12
Start-up Procedure................................................... 12
Air Circulation........................................................ 12
Short Cycle Protection.......................................... 12
System Cooling..................................................... 12
System Heating..................................................... 12
Refrigerant Charging................................................ 12
Charging an R-410A Unit in AC Mode..................... 13
Charging an R-410A Unit in Heating Mode.............. 13
REPLACEMENT PARTS............................................. 13
HEAT PUMP MAINTENANCE.................................... 13
FIGURES & TABLES.................................................. 14
Figure 7. Q6SD Heat Pump Dimensions.............. 14
Table 4. Center of Gravity & Shipping Weights...... 14
Electrical Information................................................ 15
Figure 8. T-Stat Connections................................. 15
Figure 9. Wiring Diagram...................................... 16
Cooling Charging Charts.......................................... 17
Figure 10. Charging Chart for 3 Ton Units............. 17
Figure 11. Charging Chart for 2.5 Ton Units.......... 17
Figure 12. Charging Chart for 3 Ton Units............. 18
Figure 13. Charging Chart for 3.5 Ton Units.......... 18
Figure 14. Charging Chart for 4 Ton Units............. 19
Figure 15. Charging Chart for 5 Ton Units............. 19
Q6SD Series Airflow Data........................................ 20
Table 5. Airflow Data............................................. 20
3
USER INFORMATION
SAFETY INFORMATION
IMPORTANT: Please read all instructions before servicing
this equipment. Pay attention to all safety warnings and
any other special notes highlighted in the manual. Safety
markings are used frequently throughout this manual to
designate a degree or level of seriousness and should not
be ignored. WARNING indicates a potentially hazardous
situation that if not avoided, could result in personal injury
or death. CAUTION indicates a potentially hazardous
situation that if not avoided, may result in minor or moderate
injury or property damage.
ABOUT THE HEAT PUMP
Your heat pump is a unique, all weather comfort-control
appliance that will heat and cool your home year round
and provide energy saving comfort. It’s an unknown fact
that heat is always in the air, even when the outside
temperature is below freezing. The heat pump uses this
basic law of physics to provide energy saving heat during
the winter months. For example, If the outdoor temperature
is 47° F (8° C), your heat pump can deliver approximately
3.5 units of heat energy per each unit of electrical energy
used, as compared to a maximum of only 1 unit of heat
energy produced with conventional heating systems.
In colder temperatures, the heat pump performs like an air
conditioner run in reverse. Available heat energy outside
the home is absorbed by the refrigerant and exhausted
inside the home. This efficient process means you only
pay for “moving” the heat from the outdoors to the indoor
area. You do not pay to generate the heat, as is the case
with more traditional furnace designs.
During summer, the heat pump reverses the flow of the
heat-absorbing refrigerant to become an energy-efficient,
central air conditioner. Excess heat energy inside the
home is absorbed by the refrigerant and exhausted
outside the home.
Fan
Mode
System
Mode
Temperature
Selector
Figure 1. Digital Thermostat
4
OPERATING INSTRUCTIONS
Please refer to the thermostat manufacturer’s User manual
for detailed programming instructions.
Cooling Operation
1. Set the thermostat’s system mode to COOL or AUTO
and change the fan mode to AUTO. See Figure 1.
2. Set the temperature selector to the desired
temperature level. The outdoor fan, compressor, and
blower motor will all cycle on and off to maintain the
indoor temperature at the desired cooling level.
NOTE: If the temperature level is re-adjusted, or the
system mode is reset, the fan and compressor in the
outdoor unit may not start immediately. A protective
timer circuit holds the compressor and the outdoor
fan off for approximately three minutes following a
previous operation or the interruption of the main
electrical power.
Heating Operation
1. Set the thermostat’s system mode to HEAT or AUTO
and change the fan mode to AUTO. See Figure 1.
2. Set the temperature selector to the desired
temperature level. The compressor, outdoor fan, and
blower motor will cycle on and off to maintain the
indoor temperature at the desired heating level.
NOTE: If the temperature level is re-adjusted, or the
system mode is reset, the fan and compressor in the
outdoor unit may not start immediately. A protective
timer circuit holds the compressor and the outdoor
fan off for approximately three minutes following a
previous operation or the interruption of the main
electrical power.
Emergency Heat
Some thermostats may include a system mode called EM
HT or AUX HT, etc. This is a back-up heating mode that
should only be used if a problem is suspected. With the
mode set to EM HT, etc., the compressor and outdoor fan
will be locked off and supplemental heat (electric resistance
heating) will be used as a source of heat. Sustained use
of electric resistance heat in place of the heat pump will
result in an increase in electric utility costs.
Defrost Operation
During cold weather heating operation, the outdoor unit
will develop a coating of snow and ice on the heat transfer
coil. This is normal and the unit will defrost itself. This unit
features Demand Defrost that monitors ambient and coil
temperatures to regulate the defrost function accordingly.
At the beginning of the defrost cycle, both the outdoor
USER INFORMATION
condenser fan and compressor will turn off. After
approximately 30 seconds, the compressor will turn on
and begin to heat the outdoor coil causing the ice and
snow to melt.
NOTE: While the ice and snow is melting, some steam
may rise from the outdoor unit as the warm coil causes the
melting frost to evaporate. When defrost is completed, the
outdoor fan motor will start, and the compressor will turn
off again. In approximately 30 seconds the compressor
will start up again and continue normal operation.
Operating the Heat Pump for Automatic Cooling
and Heating
1. Set the thermostat system mode to AUTO and the
thermostat fan mode to AUTO. See Figure 1.
NOTE: Thermostat styles vary. Some models will
not include the AUTO mode and others will have the
AUTO in place of the HEAT and COOL. Others may
include all three. Refer to the instructions supplied
with your thermostat for specific instructions.
2. Set the thermostat's temperature selector to the
desired heating and cooling temperature level(s).
The outdoor unit and the indoor blower will then cycle
on and off in either the heating or cooling mode of
operation as required to automatically maintain the
indoor temperature within the desired limits.
Operating the Indoor Blower Continuously
The continuous indoor blower operation is typically used to
circulate the indoor air to equalize a temperature unbalance
due to a sun load, cooking, or fireplace operation.
Set the thermostat fan mode to ON (Figure 1). The indoor
blower starts immediately, and will run continually until
the fan mode is reset to AUTO.
The continuous indoor blower operation can be obtained
with the thermostat system mode set in any position,
including OFF.
Shutting the Heat Pump Off
Change the thermostat’s system mode to OFF and the fan
mode to AUTO. See Figure 1. NOTE: The system will not
operate, regardless of the temperature selector setting.
HEAT PUMP MAINTENANCE
CAUTION:
Shut off all electrical power to the unit before
performing any maintenance or service on the
system. Failure to comply may result in personal
injury or death.
Proper maintenance is most important to achieve the best
performance from the appliance and should be performed
by a qualified service technician at least once a year.
Follow the maintenance schedule and the instructions
below for years of safe, trouble free operation.
Regular Cleaning
• Clean or replace the indoor air filter at the start of each
heating and cooling season, and when an accumulation
of dust and dirt is visible on the air filter.
• Remove any leaves and grass clippings from the coil
in the outdoor unit, being careful not to damage the
aluminum fins.
• Check for obstructions, such as twigs, sticks, etc.
TROUBLESHOOTING
If the unit fails to operate, check the following:
• The thermostat is properly set. See Cooling Operation
for air conditioning or Heating Operation for furnace or
air handler.
• The unit disconnect fuses are in good condition and
the electrical power to the unit is turned on.
WARRANTY INFORMATION
A warranty certificate with full details is included with the
heat pump. Carefully review these responsibilities with
your dealer or service company. The manufacturer will not
be responsible for any costs found necessary to correct
problems due to improper setup, improper installation,
adjustments, improper operating procedure on the part
of the user, etc. Some specific examples of service calls
which are not included in the limited warranty are:
• Correcting wiring problems in the electrical circuit
supplying the heat pump.
• Resetting circuit breakers or other switches.
• Adjusting or calibrating of thermostat.
5
INSTALLER INFORMATION
SAFETY INFORMATION
IMPORTANT: Safety markings are used frequently
throughout this manual to designate a degree or level
of seriousness and should not be ignored. WARNING
indicates a potentially hazardous situation that if not
avoided, could result in personal injury or death. CAUTION
indicates a potentially hazardous situation that if not
avoided, may result in minor or moderate injury or property
damage.
WARNING:
Improper installation, service, adjustment, or
maintenance may cause explosion, fire, electrical
shock or other hazardous conditions which may
result in personal injury or property damage.
Unless otherwise noted in these instructions,
only factory authorized kits or accessories may
be used with this product.
CAUTION:
This unit uses refrigerant R-410A. DO NOT use
any other refrigerant in this unit. Use of another
refrigerant will damage the unit.
WARNING:
Shut off all electrical power to the unit before
performing any maintenance or service on the
system. Failure to comply may result in personal
injury or death.
WARNING:
These units are fully charged with R-410A
refrigerant and ready for installation. When
a system is installed according to these
instructions, no refrigerant charging is required.
If repairs make it necessary for evacuation
and charging, it should only be attempted by
qualified, trained personnel thoroughly familiar
with this equipment. Some local codes require
licensed installation service personnel to
service this type of equipment. Under no
circumstances should the homeowner attempt
to install and/or service this equipment. Failure
to comply with this warning could result in
equipment damage, personal injury, or death.
6
WARNING:
Do not place combustible material on or against
the unit cabinet. Do not place combustible
materials, including gasoline and any other
flammable vapors and liquids, in the vicinity of
the unit.
WARNING:
The safety information listed below must be
followed during the installation, service, and
operation of this unit. Unqualified individuals
should not attempt to interpret these instructions
or install this equipment. Failure to follow safety
recommendations could result in possible
damage to the equipment, serious personal
injury or death.
• The installer must comply with all local codes and
regulations which govern the installation of this type
of equipment. Local codes and regulations take
precedence over any recommendations contained in
these instructions. Consult local building codes and
the National Electrical Code (ANSI CI) for special
installation requirements.
• This equipment contains liquid and gaseous refrigerant
under high pressure. Installation or servicing should only
be performed by qualified trained personnel thoroughly
familiar with this type equipment.
• All electrical wiring must be completed in accordance
with local, state and national codes and regulations
and with the National Electric Code (ANSI/NFPA 70)
or in Canada the Canadian Electric Code Part 1 CSA
C.22.1.
• Installation of equipment may require brazing
operations. Installer must comply with safety codes
and wear appropriate safety equipment (safety glasses,
work gloves, fire extinguisher, etc.) when performing
brazing operations.
• Install this unit only in a location and position as specified
on page 7. This unit is designed only for outdoor
installations and should be located with consideration
of minimizing the length of the supply and return ducts.
Consideration should also be given to the accessibility
of fuel, electric power, service access, noise, and shade.
• Follow all precautions in the literature, on tags, and
on labels provided with the equipment. Read and
thoroughly understand the instructions provided with
the equipment prior to performing the installation and
operational checkout of the equipment..
Before you install this unit
√ The cooling load of the area to be conditioned must be
calculated and a system of the proper capacity selected.
It is recommended that the area to be conditioned be
completely insulated and vapor sealed.
√ Check the electrical supply and verify the power supply
is adequate for unit operation. If there is any question
concerning the power supply, contact the local power
company.
√ All units are securely packed at the time of shipment and
upon arrival should be carefully inspected for damage
prior to installing the equipment at the job site. Verify
coil fins are straight. If necessary, comb fins to remove
flattened or bent fins. Claims for damage (apparent or
concealed) should be filed immediately with the carrier.
√ Please consult your dealer for maintenance information
and availability of maintenance contracts. Please read
all instructions before installing the unit.
Locating the Heat Pump
• Survey the job site to determine the best location for
mounting the outdoor unit.
• Choose an appropriate location that minimizes the
length of the supply and return air ducts.
• Overhead obstructions, poorly ventilated areas, and
areas subject to accumulation of debris should be
avoided.
• Sufficient clearance for unobstructed airflow through the
outdoor coil must be maintained in order to achieve rated
performance. See Figure 2 for minimum clearances to
obstructions.
Field Connections for Electrical Power Supply
• All wiring must comply with current provisions of the
National Electrical Code (ANSI/NFPA 70) and with
applicable local codes having jurisdiction.
• The minimum size of electrical conductors and circuit
protection must be in compliance with information listed
on the outdoor unit data label.
• Electrical power supplied to the unit must be adequate
for proper operation of the equipment. The system
must be wired and provided with circuit protection in
accordance with local building codes.
Air Ducts
This unit is designed only for use with a supply and return
duct. Air ducts must be installed in accordance with the
standards of the National Fire Protection Association
Standard for Installation of Air Conditioning Systems
36” For Coil Only
0"
TOP OF UNIT
TO BE
UNOBSTRUCTED
GENERAL INFORMATION
The Q6SD series heat pump is designed only for outdoor
rooftop or ground level installations. This unit has been
tested for capacity and efficiency in accordance with
A.R.I. Standards and will provide many years of safe
and dependable comfort, providing it is properly installed
and maintained. Abuse, improper use, and/or improper
maintenance can shorten the life of the appliance and
create unsafe hazards.
36"
36"
36"
Minimum Required
Clearances to Obstructions
Figure 2. Clearance Requirements
(NFPA 90A), Standard for Installation of Residence Type
Warm Air Heating and Air Conditioning Systems (NFPA
90B), and all applicable local codes. NFPA publications
are avaialable by writing to: National Fire Protection
Association, Batterymarch Park, Quincy, ME 02269 or
visit www.NFPA.org on the web.
• Design the duct work according to methods described
by the Air Conditioning Contractors of America (ACCA).
• The ducts must be properly sized not to exceed .2”
W.C. pressure drop at 400 scfm per nominal ton of
cooling capacity.
• Duct work should be attached directly to the unit flanges
for horizontal applications.
• If roof curb is installed, the ducts must be attached to
the curb hangers, not the unit.
Unconditioned Spaces
All duct work passing through unconditioned space must
be properly insulated to minimize duct losses and prevent
condensation. Use insulation with an outer vapor barrier.
Refer to local codes for insulation material requirements.
Acoustical Duct Work
Certain installations may require the use of acoustical
lining inside the supply duct work.
• Acoustical insulation must be in accordance with the
current revision of the Sheet Metal and Air Conditioning
Contractors National Association (SMACNA)
application standard for duct liners.
• Duct lining must be UL classified batts or blankets with
a fire hazard classification of FHC-25/50 or less.
• Fiber duct work may be used in place of internal duct
liners if the fiber duct work is in accordance with the
current revision of the SMACNA construction standard
on fibrous glass ducts. Fibrous duct work and internal
acoustical lining must be NFPA Class 1 air ducts when
tested per UL Standard 181 for Class 1 ducts.
7
Air Filter Requirements
WARNING:
Never operate the unit without a filter in place.
Dust and lint could accumulate on internal parts,
resulting in loss of efficiency, equipment damage
and possible fire. Replace disposable filters with
the same type and size.
• Air filter(s) are not supplied and must be installed in
the return air system by the installer.
• All return air must pass through the filters before
entering the unit. NOTE: It is important that all filters
be kept clean and replaced frequently to ensure proper
operation of unit. Dirty or clogged filters will reduce
the efficiency of the unit and result in unit shutdowns.
• Air filter pressure drop must not exceed 0.08 inches
WC. When replacing the air filters, a suitable air filter
must be installed upstream of the evaporator coil of
the return air system.
• Downflow Installations require an internal filter
accessory kit to be installed.
• Horizontal Installations require the air filter system be
installed in the return air ductwork.
HEAT PUMP INSTALLATION
Packaging Removal
Remove the shipping carton and User’s Manual from the
equipment.Take care not to damage the tubing connections
when removing the carton. For rooftop installations, remove
and discard the two supports attached beneath the unit.
Rigging and Hoisting
WARNING:
To avoid the risk of property damage, personal
injury, or death, it is the rigger’s responsibility
to ensure that whatever means are used to hoist
the unit are safe and adequate:
• The lifting equipment must be adequate for the
load. Refer to Table 3 (page 14) for unit weights.
• The unit must be lifted from the holes in the
base rails using cables or chains.
• Spreader bars are required to protect the unit
and ensure even loading.
• Keep the unit in an upright position at all times.
The rigging must be located outside the units
center of gravity. Refer to Figure 6 (page 14)
for locating the center of gravity.
• All panels must be securely in place during
rigging and hoisting.
Minimum Clearance Requirements
Q6SD units are certified as combination heating and
cooling equipment for outdoor installation only. Figure 2
(page 7) displays the minimum clearances to obstructions
for both downflow and horizontal discharge.
2”
Figure 3. Ground Level Installation
Units may be installed on wood flooring or on Class A, B,
or C roof covering material when used with bottom supply
and return air ducts as long as the following requirements
are met:
• If using horizontal supply and return air ducts, the
horizontal roof curb kit and return air kit must be
installed prior to unit installation. Horizontal roof curb
is required.
• If using bottom discharge with return air ducts a roof
curb must be installed prior to unit installation. See
Rigging and Hoisting section for setting of the unit.
Ground Level
Ground level installations must be located according to
local building codes or ordinances and these requirements:
• Clearances must be in accordance with those shown
in Figure 2. Also consider clearances for access to the
internal filter.
• A suitable mounting pad (Figure 3) must be provided
and separate from the building foundation. The pad
must be level to ensure proper condensate disposal
and strong enough to support the unit’s weight. The
8
slab height must be a minimum of 2” (5cm) above
grade and with adequate drainage.
• Units require horizontal roof curb and return air kit for
horizontal installations.
• Ductwork should be attached directly to flanges on
panels supplied in horizontal duct conversion kits.
Rooftop
Rooftop installations must be located according to local
building codes or ordinances and these requirements:
• The roof must be capable of handling the weight of the
unit. For unit weights, see Table 3 (page 14). Reinforce
the roof if necessary.
• The appropriate accessory roof curb (Figure 4) must be
installed prior to unit installation. The roof curb must be
square and level to ensure proper condensate drainage.
Please follow all instructions provided with the kit.
• Secure roof curb or frame to roof using acceptable
mechanical methods per local codes. NOTE: Make sure
the two supports beneath the unit have been removed.
Condensate
Drain
Figure 5. Condensate Drain Location
ELECTRICAL WIRING
WARNING:
To avoid risk of electrical shock, personal injury,
or death, disconnect all electrical power to the unit
before performing any maintenance or service.
The unit may have more than one electrical
supply.
Label all wires prior to disconnection when
servicing the unit. Wiring errors can cause
improper and dangerous operation
Roof
Curb
Figure 4. Roof Top Installation
• Electrical connections must be in compliance with
all applicable local codes and ordinances, and with
the current revision of the National Electric Code
(ANSI/NFPA 70).
• For Canadian installations the electrical connections
and grounding shall comply with the current Canadian
Electrical Code (CSA C22.1 and/or local codes).
Horizontal to Downflow Conversion
The unit is shipped ready for horizontal duct connections.
If down flow ducts are required, the unit must be converted
following the steps below for the supply and return ducts.
1.Locate the duct cap inside the duct openings and
remove the screw holding it in place.
2. Lift the cap out of the unit. (Hint: The cap can be pushed
up from the bottom by reaching through the fork slot).
3. Cover the horizontal duct opening with the horizontal
duct cap. The insulation will be on the indoor side.
4. Fasten the cover with screws to seal.
Pre-Electrical Checklist:
√ Verify that the voltage, frequency, and phase of the
supply source match the specifications on the unit
rating plate.
√ Verify that the service provided by the utility is sufficient
to handle the additional load imposed by this equipment.
refer to the unit wiring label for proper high and low
voltage wiring.
√ Verify factory wiring is in accordance with the unit
wiring diagram (Figure 8 page 16). Inspect for loose
connections.
Condensate Drain
Condensate is removed from the unit through the 3/4”
female pipe fitting located on the front side of the unit
(See Figure 5). Install a 2 inch condensate trap in the
drain line of the same size and prime with water. When
connecting rigid drain line, hold the female fitting with a
wrench to prevent twisting. Do not over tighten! Refer
to local codes and restrictions for proper condensate
disposal requirements.
Line Voltage
• A wiring diagram is located on the inside cover of
the units electrical box. The installer should become
familiar with the wiring diagram before making any
electrical connections to the outdoor unit.
• An electrical disconnect must be located within
sight of and readily accessible to the unit. This
switch shall be capable of electrically de-energizing
the unit.
9
• Line voltage to the unit should be supplied from a
dedicated branch circuit containing the correct fuse
or circuit breaker for the unit. Incoming field wiring
and minimum size of electrical conductors and circuit
protection must be in compliance with information listed
on the outdoor unit data label. Any other wiring methods
must be acceptable to authority having jurisdiction.
• The outdoor unit requires both power and control circuit
electrical connections. Refer to the wiring diagram /
schematic (Figure 8 - 11, page 16) for identification
and location of outdoor unit field wiring interfaces.
Make all electrical connections in accordance with all
applicable codes and ordinances.
• Overcurrent protection must be provided at the branch
circuit distribution panel and sized as shown on the unit
rating label and according to applicable local codes.
See the unit rating plate for minimum circuit ampacity
and maximum overcurrent protection limits.
• Provide power supply for the unit in accordance with the
unit wiring diagram, and the unit rating plate. Connect
the line-voltage leads to the terminals on the contactor
inside the control compartment.
• Use only copper wire for the line voltage power supply
to this unit as listed in Table 2. Use proper code agency
listed conduit and a conduit connector for connecting
the supply wires to the unit. Use of rain tight conduit
is recommended.
• Units are shipped from the factory wired for 240 volt
operation. Remove the lead from the transformer
terminal marked 240V and connect it to the terminal
marked 208V.
• Optional equipment requiring connection to the power
or control circuits must be wired in strict accordance
of the NEC (ANSI/NFPA 70), applicable local codes,
and the instructions provided with the equipment.
COPPER WIRE SIZE — AWG
(1% Voltage Drop)
Supply Wire Length-Feet
200
6
4
4
4
3
3
2
2
2
1
150
8
6
6
4
4
4
3
3
3
2
100
10
8
8
6
6
6
4
4
4
3
50
14
12
10
10
8
8
6
6
6
4
Supply Circuit
Ampacity
15
20
25
30
35
40
45
50
55
60
Wire Size based on N.E.C. for 60° type copper conductors.
Table 1. Copper Wire Size
10
Grounding
WARNING:
The unit cabinet must have an uninterrupted or
unbroken electrical ground to minimize personal
injury if an electrical fault should occur. Do not
use gas piping as an electrical ground!
This unit must be electrically grounded in accordance
with local codes or, in the absence of local codes, with
the National Electrical Code (ANSI/NFPA 70) or the CSA
C22.1 Electrical Code. Use the grounding lug provided in
the control box for grounding the unit.
Blower Speed
The blower speed is preset at the factory for operation at
the same speed for heating and cooling. These factory
settings are listed in Table 4 (page 20). For optimum
system performance and comfort, it may be necessary
to change the factory set speed.
CAUTION:
To avoid personal injury or property damage,
make sure the motor leads do not come into
contact with any uninsulated metal components
of the unit.
1. Shut off all electrical power to the unit and remove
the blower panel. Locate the orange and red wires
terminated to the blower motor. NOTE: The orange
wire controls cooling operation while the red wire
controls heating operation.
2. Verify the required speed from the airflow data found
in Table 5. Place appropriate wire on the correct motor
speed tap for the required airflow point.
Defrost Cycle Timer
The defrost cycle timer controls the time interval of the hot
gas defrost after the defrost sensor closes. It is located
in the lower left corner of the defrost control board on the
low voltage side of the control box. Three interval settings
are available: 30 minutes, 60 minutes, and 90 minutes.
Time setting selection is dependent on the climate where
the unit is being installed.
• Example 1: Dry climate of Southern Arizona - A 90
minute setting is recommended.
• Example 2: Moist climate of Seattle, Washington - A
30 minute setting is recommended.
To set the cycle timer, place the timing pin on the defrost
control board to the desired time interval post. NOTE: All
units are shipped from the factory with the default time
setting of 30 minutes.
Defrost Control Board
Operational Informaton
• Terminals R - C must have 24V present between
them for the time delay and defrost sequences to be
operational.
• Jumpering the T2 - DFT test pins will communicate
to the board that the defrost thermostat is closed (if
the compressor is running). The defrost T-stat tells the
board whether a defrost cycle needs to be started or
terminated.
NOTE: The defrost T-stat is closed at 32° F or below
and is open at 68° F or above, but it’s state is unknown
if the temperature is between 32° F and 68° F.
• With the DFT closed, the unit will run for 30/60/90
minutes in heat mode and then defrost the outdoor
coil. The defrost will turn off the outdoor fan, turn on
the compressor, and raise the coil temperature to 68°
F. This will open the DFT and terminate the defrost. If
the DFT does not open, the defrost will end after 10
minutes.
• Jumpering the TEST terminal to the C (common)
terminal (while the compressor is in heat mode) will
over-ride the defrost board and initiate a faster defrost
test in 5, 10 or 15 seconds as determined by the 30,
60 or 90 minute defrost pin settings (factory setting is
30 minutes).
- This also bypasses the compressor off delay when
the unit goes into defrost test. If unit is kept in defrost
test, the delay will be bypassed when the test is
terminated by the processor.
NOTE: If the jumper is removed before the test is over,
the processor will perform the remainder of a normal
defrost as noted above.
• The delay/no-delay pin affects compressor operation
during defrosts.To switch from no-delay to delay remove
the pin from the no-delay pin location and move it to
the delay pin loction. The default setting is delay.
- Reciprocating compressors should only use this
setting in conjunction with an approved hard start
kit.
- Scroll compressors that have noise issues while
going into or coming out of defrost should use this
30 second delay to reduce the defrost noise.
Normal Defrost Procedure
To test normal defrost operation when the temperature is
above 35° F, jumper R to DFT on the board and allow the
unit to run for 30 minutes. Defrost will continue until the
R to DFT jumper is removed or for 10 minutes. Remove
the jumper.
The 5 minute time delay feature can be shortened 1 time
to 1 second by jumping the Test to C terminal. Remove
the jumper and repeat as desired. NOTE: If jumper is left
on the Test to common pins permanently, the defrost
cycle will be inoperable.
Defrost Test Procedure
1. Jumper T2 to DFT at the test terminals.
2. With unit running in heat mode, jump the TEST terminal
to the C (common) terminal near it. The board will
speed up and enter defrost mode in 5/10/15 seconds,
depending on the defrost time selection. Compressor
delay will not function during speed-up. NOTE: Manually
initiating a defrost will cause the compressor to run
continually when entering defrost.
3. This test will end in 5 seconds if the TEST - common
short is not removed.
4. Remove both the short and the T2 to DFT jumper to
terminate the defrost cycle.The 30 second compressor
delay should operate normally.
5.Test is complete, reset thermostat to home owner
preference.
Optional Outdoor Thermostat
An outdoor thermostat can be installed in the field with
2-stage electric heat by removing the orange wire from
the E terminal on the terminal block and connecting to the
outdoor thermostat. Connect the other side of the outdoor
thermostat to W2 from the thermostat.
Optional Electric Heater Kits
Optional electric heater kits are available in 5 kw through
20 kw heating capacities. Single package heat pumps
are designed to allow optional electric heat to be field
installed as required by the building’s particular heating
load. The options available for each unit are shown in the
heater kit installation instructions. A heating/cooling 24V
thermostat should be used when an electric heater kit is
installed. NOTE: A 2-stage heating thermostat is required
if installing a 2-stage heater kit. As previously noted, a
field installed circuit breaker kit is available as a means
of electrical disconnect for the unit. Install the heater kits
as directed by the instructions supplied with the heater
kit. Follow all cautions and warnings as directed.
Thermostat Connections
• The Q6SD heat pump requires a 2-stage cooling/
heating thermostat if used in conjunction with certain
installed accessories.
• The low voltage wires must be properly connected to
the units low voltage terminal block as shown in Figure
7 (page 15) . Recommended wire gauge and lengths
for typical thermostat connections are listed in Table 2
(page 12).
• The thermostat should be mounted about 5 feet
above the floor on an inside wall. DO NOT install the
thermostat on an outside wall or any other location
where its operation may be adversely affected by radiant
heat from fireplaces, sunlight, or lighting fixtures, and
convective heat from warm air registers or electrical
appliances. Refer to the thermostat's instruction sheet
for detailed mounting and installation information.
11
Thermostat
Wire Gauge
Recommended T-Stat Wire Length
(Unit to T-Stat)
2-Wire
(Heating)
5-Wire
(Heating/Cooling)
24
22
55
90
25
45
20
18
140
225
70
110
Table 2. Thermostat Wire Gauge
START UP & ADJUSTMENTS
Pre-Start Check List
√ Verify the unit is level and allows condensate to drain.
√ Verify the outdoor coil and top of the unit are free from
obstructions and debris, and all equipment access/
control panels are in place.
√ Verify that the duct work is sealed to prevent air leakage.
√ Verify that the line voltage power leads are securely
connected and the unit is properly grounded.
√ Verify that the low voltage wires are securely connected
to the correct leads on the low voltage terminal strip.
√ Verify that the outdoor fan turns freely.
√ Verify that the power supply branch circuit overcurrent
protection is sized properly.
√ Verify that the thermostat is wired correctly. The
thermostat system mode should be set to OFF and
the thermostat fan mode should be set to AUTO.
Start-Up Procedure
Close all electrical disconnects to energize the system.
WARNING:
If the unit is equipped with a crankcase heater,
allow 24 hours prior to continuing the start up
procedures to allow for heating of the refrigerant
compressor crankcase. Failure to comply may
result in damage and could cause premature
failure of the system. This warning should be
followed at initial start up and any time the power
has been removed for 12 hours or longer.
Air Circulation
Leave the thermostat system mode on OFF, and set the
fan mode to ON. Blower should run continuously. Check
the air delivery at the supply registers and adjust register
openings for balanced air distribution. Examine ductwork
for leaks or obstruction if insufficient air is detected. Set
the thermostat fan mode to AUTO. The blower should
stop running.
Short Cycle Protection
1. With the system operating in cooling mode, note the
temperature setting of the thermostat and gradually
raise the set-point temperature until the unit deenergizes.
12
2. Immediately lower the set point temperature of the
thermostat to its original setting and verify that the
indoor blower is energized.
3. After approximately 5 minutes, verify the compressor
and fan energize and the temperature of the discharge
air is cooler than the room temperature.
System Cooling
1. Set the thermostat’s system mode to COOL and the
fan mode to AUTO. Gradually lower the thermostat
temperature setpoint below room temperature and
verify the outdoor unit and indoor blower energize.
2.Feel the air being circulated by the indoor blower
and verify that it is cooler than ambient temperature.
Listen for any unusual noises. If unusual sounds
occur, determine the source of the noise and correct
as necessary.
3. Allow the cooling system to operate for several minutes
and then set the temperature selector above room
temperature. Verify the fan and compressor cycle off
with the thermostat. NOTE: The blower should also
stop unless fan mode is set to ON.
System Heating
If the unit has been equipped with optional electric heater
kits, set the thermostat's system mode to HEAT and the
fan mode to AUTO. Verify the compressor and outdoor
fan are not energized but that the blower and heaters are.
Feel the air being circulated by the indoor blower and verify
that it is warmer than ambient temperature. Listen for any
unusual noises. If unusual sounds occur, determine the
source of the noise and correct as necessary.
Refrigerant Charging
WARNING:
Single Packaged Heat Pumps are shipped fully
charged with R-410A refrigerant and ready
for installation. When a system is installed
according to these instructions, no refrigerant
charging is required. If repairs make it necessary
for evacuation and charging, it should only be
done by qualified, trained personnel thoroughly
familiar with this equipment. Some local codes
require licensed installation/service personnel
to service this type of equipment. Under no
circumstances should the owner attempt to
install and/or service this equipment. Failure to
comply with this warning could result in property
damage, personal injury, or death.
The system refrigerant charge can be checked and
adjusted through the service ports provided at the front
panel. Use only gauge lines which have a Schrader
depression device present to actuate the valve. Draw a
vacuum on gauge lines to remove air before attaching
them to the service ports on the unit.
NOTES:
• To achieve rated capacity and efficiency the compressor
must be exposed to refrigerant for at least 24 hours
prior to running and then must be run for a minimum
of 12 hours.
• The refrigerant charging charts (Figures 9 - 14, pages
17 - 19) are applicable to listed assemblies of equipment
and at listed airflows for the indoor coil. Assemblies
of indoor coils and outdoor units not listed are not
recommended.
Charging an R-410A Unit in AC Mode at Outdoor
Temperatures Above 65° F.
1. With the system operating at steady-state, measure
the liquid refrigerant pressure in psig at the service
valve.
2. Measure the liquid refrigerant temperature in
Fahrenheit at the service valve.
3. For the temperature measured, determine the required
liquid refrigerant pressure from the appropriate
charging charts in Figures 9 - 14.
4. If the pressure measured in step 1 is greater than
the required liquid refrigerant pressure determined in
step 4, then there is too much charge in the system.
Remove refrigerant and repeat steps 1 through 3 until
the system is correctly charged.
5. If the pressure measured in step 1 is less than the
required liquid refrigerant pressure determined in
step 4, then there is too little charge in the system.
Add refrigerant and repeat steps 1 through 3 until the
system is correctly charged.
Charging an R-410A Unit in Heating Mode.
1. Evacuate the refrigerant system.
2. Weigh in the proper charge based on the charge
level noted on the rating plate. Unit charge MUST be
verified in cooling season.
3. Verify the unit is operating properly as outlined in
System Heating (page 12).
REPLACEMENT PARTS
Replacement parts are available through all Nordyne
distributors. Please have the complete model and serial
number of the unit when ordering replacement parts.
HEAT PUMP MAINTENANCE
WARNING:
To prevent electrical shock, personal injury, or
death, disconnect all electrical power to the unit
before performing any maintenance or service.
Unit may have more than one electrical supply.
CAUTION:
Use care when servicing the heat pump or
removing components. Personal injury can
result from sharp edges present in equipment
constructed with sheet metal
Proper maintenance is important to achieve optimum
performance from the heat pump. The ability to properly
perform maintenance on this equipment requires certain
mechanical skills and tools. If you do not possess these
skills, contact your dealer for maintenance. Consult your
local dealer about the availability of maintenance contracts.
Routine maintenance should include the following:
• Inspect and clean or replace air filters at the beginning
of each heating and cooling season, or more frequently
if required.
• Inspect the condensate drain and outdoor coil at the
beginning of each cooling season. Remove any debris.
Clean the outdoor coil and louvers as necessary using
a mild detergent and water. Rinse thoroughly with water.
• Inspect the electrical connections for tightness at the
beginning of each heating and cooling season. Service
as necessary.
CAUTION:
The unit should never be operated without a
filter in the return air system. Replace disposable
filters with the same type and size.
• The motors for the circulating air blower and the outdoor
fan are pre-lubricated at the factory. No further oiling
is required for the life of this product.
ELECTRICAL:
Capacitors
Pressure Switches
Coil Sensor
Relays
Compressors
Transformers
Contactors
MOTORS:
Blower Motor
Fan Motor
COMPONENTS:
Blower Assembly
Fan Grille
Cabinet Panels
Filter/Driers
Expansion Valves
13
FIGURES & TABLES
24 9/10
3/4" NPT Female
Drain Connector
DOWNFLOW
SUPPLY DUCT
OPENING
47 1/2
CG
13 1/2
16
16
13 1/2
B
13 3/10
12
12
23 1/2
DOWNFLOW
RETURN DUCT
OPENING
A
Top View
4.0
5.0
HORIZONTAL
SUPPLY DUCT
OPENING
C
HORIZONTAL
RETURN DUCT
OPENING
13.5
16.0
8
16.0
13.7
CONDENSING
COIL
13.5
12.45
1 4/5
1 3/4 Ø Power Entry (Capped)
11.75
22.75
4.00
55.8
Back View
1 1/4 Ø Power Entry
22/25 Ø Control Wiring Entry
30
27 1/5
Side View
23 3/5
4
Figure 6. Q6SD Heat pump Dimensions
Height -C(in inches)
Center of Gravity
Model Number
Q6SD
Unit
Weight
-A-
-B-
with base rails
without base rails
X24
440
28.0
25.5
39.0
35.3
X30
450
28.0
26.0
39.0
35.3
X36
460
28.0
25.5
39.0
35.3
X42
560
29.5
26.0
43.0
39.3
X48
570
29.5
26.0
43.0
39.3
X60
580
29.5
26.0
43.0
39.3
Table 3. Center of Gravity & Unit Shipping Weights
14
ELECTRICAL INFORMATION
SEE ECONOMIZER
INSTALLATION
INSTRUCTIONS
FROM
BLOWER
RELAY
Green
G
ECONOMIZER
PLUG
1
2
3
4
Blue 5
6
7
8
9
Y2
C
Y1
O
W2
1 Brown
2 Orange
3
4
5
6
7
8
9
R
E
INDOOR
THERMOSTAT
SUB-BASE
DEFROST
BOARD
Accessory
Heat Plug
Typical Wiring (Field Supplied) for 1-Stage Cool, 1 Stage Electric Heat
SEE ECONOMIZER
INSTALLATION
INSTRUCTIONS
FROM
BLOWER
RELAY
Green
G
Optional
Outdoor
Thermostat
(Field Supplied)
Y2
ECONOMIZER
PLUG
1
2
3
4
Blue 5
6
7
8
9
C
Y1
O
W2
R
1 Brown
2 Orange
3
4
5
6
7
8
9
E
INDOOR
THERMOSTAT
SUB-BASE
DEFROST
BOARD
Accessory
Heat Plug
Typical Wiring (Field Supplied) for 2-Stage Cool, 2-Stage Electric Heat
with an Optional Outdoor Thermostat
Figure 7. Typical Heat Pump Thermostat Connections 208V / 230V
15
Figure 8. Wiring Diagram for 208/230V Units
FIELD WIRING
LOW VOLTAGE
HIGH VOLTAGE
LEGEND:
H
C
F
S
C
9
8
6
7
4
5
3
2
1
HEATER
PLUG
OUTDOOR
FAN MOTOR
BLACK
BLACK
BLACK
BLACK
BLACK
BLUE
BROWN
ORANGE
WHITE
BLUE
208V
ORANGE
ORANGE
YELLOW
BLACK
COM
BROWN
RED
Single Phase 60 Hz
B
3
2
1
1
GREEN
2
5
1
4
6
3
BLOWER
RELAY
GREEN
BLOWER
MOTOR
T5
T4
T3
T1
T2
BLACK
G
N
L
C
YELLOW
YELLOW
1
3
2
4
5
6
7
9
8
LOW PRESSURE
SWITCH
(IF EQUIPPED)
YE
1
3
2
4
5
6
7
9
8
GN WITH
YE STRIPE
YELLOW
GRAY
GREEN
YELLOW
BLACK
BLUE
WHITE
ORANGE
RED
RED
ECONOMIZER
PLUG
TO DISCHARGE
AIR SENSOR
0910
7111340 (Replaces 7110120)
RED
ORANGE
HIGH
PRESSURE
SWITCH
YE
NOTE: ONLY
REQUIRED IF NO
LOW PRESSURE
SWITCH
YE
GRAY
4
5
5
3
2
6
4
7
6
9
8
7
9
8
ECONOMIZER
PLUG
RED
RED
BLACK
BLUE
YELLOW
WHITE
YELLOW
YE
TO INDOOR
THERMOSTAT
1. Couper le courant avant de faire letretien.
2. Employez uniquement des conducteurs en cuivre.
3. Ne convient pas aux installations de plus de 150 V
a la terre.
G C L W1 R Y2 E O Y1 W2
NOTE: See Installation
Instructions for wiring,
application, and
Information concerning
accessory Heat Kits and
other options.
24V
YELLOW
240V
TRANSFORMER
3 AMP
FUSE
DEFROST BOARD OPERATION:
1 CLOSES DURING DEFROST. RAITNG: 1 A MAXIMUM
2 OPENS DURING DEFROST. 2 HP AT 230 VAC MAXIMUM
3 CLOSED WHEN “Y” IS ENERGIZED. OPEN WHEN “Y” IS DEENERGIZED.
PROVIDES “OFF” DELAY TIME OF 5 MIN WHEN “Y” IS DEENERGIZED.
4 WITH DTF CLOSED AND “Y” ENERGIZED, COMPRESSOR RUN TIME IS ACCUMLATED.
OPENING OF DFT DURING DEFROST OR INTERVAL PERIOD RESETS THE INTERVAL TO 0.
BLUE
R
REVERSING
VALVE
SOLENOID
ORANGE
DUAL CAPACITOR
RED
YELLOW
T1
T2
COMPRESSOR
CONTACTOR
DF1 DF2
COMPRESSOR
S
R
BLACK
L1
L2
DEFROST
BOARD
BROWN
W2
C
BLACK
BLACK
(IF EQUIPPED)
CCH
WHITE
RED
RED
DEFROST
SENSOR
208/230 Volt
E
WHITE
TO 208/230 VAC
POWER SUPPLY
NOTES:
1. Disconnect all power before servicing.
2. For supply connections use copper conductors only.
3. Not suitable on systems that exceed 150V to ground.
4. If any of the original wire as supplied with the furnace
must be replaced, it must be replaced with wiring
material having a temperature rating of at least 105°C.
5. For supply wire ampacities overcurrent protection, see
unit rating plate.
Convertible Packaged Heat Pump
R
RED
WIRING DIAGRAM
Low
Voltage
Terminals DFT
YELLOW
C
Y
O
W2
R
E
T1
T2
C
Y
O
YELLOW
16
T2
DFT
TEST
COOLING CHARGING CHARTS - 13 SEER H.P.
Liquid Pressure (psig)
Q6SD-X24 Charging Chart - Cooling
600
580
560
540
520
500
480
460
440
420
400
380
360
340
320
300
280
260
240
220
200
Remove refrigerant when above curve
Add refrigerant when below curve
75
80
85
90
95
100
105
110
115
120
125
130
135
Liquid Temperature (F)
Figure 9. Charging Chart for 2 Ton Units
Liquid Pressure (psig)
Q6SD-X30 Charging Chart - Cooling
600
580
560
540
520
500
480
460
440
420
400
380
360
340
320
300
280
260
240
220
200
Remove refrigerant when above curve
Add refrigerant when below curve
75
80
85
90
95
100
105
110
115
120
125
130
135
Liquid Temperature (F)
Figure 10. Charging Chart for 2.5 Ton Units
17
COOLING CHARGING CHARTS - 13 SEER H.P. (CONTINUED)
Liquid Pressure (psig)
Q6SD-X36 Charging Chart- Cooling
600
580
560
540
520
500
480
460
440
420
400
380
360
340
320
300
280
260
240
220
200
Remove refrigerant when above curve
Add refrigerant when below curve
75
80
85
90
95
100
105
110
115
120
125
130
135
Liquid Temperature (F)
Figure 11. Charging Chart for 3 Ton Units
Liquid Pressure (psig)
Q6SD-X42 Charging Chart- Cooling
600
580
560
540
520
500
480
460
440
420
400
380
360
340
320
300
280
260
240
220
200
Remove refrigerant when above curve
Add refrigerant when below curve
75
80
85
90
95
100
105
110
115
Liquid Temperature (F)
Figure 12. Charging Chart for 3.5 Ton Units
18
120
125
130
135
COOLING CHARGING CHARTS - 13 SEER H.P.
Liquid Pressure (psig)
Q6SD-X48 Charging Chart - Cooling
600
580
560
540
520
500
480
460
440
420
400
380
360
340
320
300
280
260
240
220
200
Remove refrigerant when above curve
Add refrigerant when below curve
75
80
85
90
95
100
105
110
115
120
125
130
135
Liquid Temperature (° F)
Figure 13. Charging Chart for 4 Ton Units
Liquid Pressure (psig)
Q6SD-X60 Charging Graph - Cooling
600
580
560
540
520
500
480
460
440
420
400
380
360
340
320
300
280
260
240
220
200
Remove refrigerant when above curve
Add refrigerant when below curve
75
80
85
90
95
100
105
110
115
Liquid Temperature (° F)
120
125
130
135
Figure 14. Charging Chart for 5 Ton Units
19
Q6SD SERIES AIRFLOW DATA
Model
number
Q6SD
X24
X30
X36
X42
X48
X60
External Static Pressure Drop - inches water column
Tap
0.1
0.2
0.3
0.4
0.5
0.6
Tap T1*
1110
869
529
-
-
-
Tap T2**
1211
996
700
609
-
-
Tap T3
1400
1350
1200
1150
1080
1030
Tap T4
1600
1500
1400
1300
1200
1050
Tap T5
1700
1650
1600
1565
1530
1480
Tap T1**
1211
996
700
609
-
-
Tap T2*
1275
1077
940
876
807
732
Tap T3
1400
1350
1200
1150
1080
1030
Tap T4
1600
1500
1400
1300
1200
1050
Tap T5
1700
1650
1600
1565
1530
1480
Tap T1**
1150
1050
1000
950
850
780
Tap T2
1230
1190
1120
1080
1000
950
Tap T3*
1464
1394
1332
1272
1216
1143
Tap T4
1600
1500
1400
1300
1200
1050
Tap T5
1700
1650
1600
1565
1530
1480
Tap T1**
1150
1050
1000
950
850
780
Tap T2
1230
1190
1120
1080
1000
950
Tap T3
1400
1350
1200
1150
1080
1030
Tap T4*
1524
1476
1424
1379
1329
1268
Tap T5
1700
1650
1600
1565
1530
1480
Tap T1*
1515
1450
1380
1350
1300
1250
Tap T2**
1580
1520
1460
1400
1360
1300
Tap T3
1740
1690
1650
1600
1540
1500
Tap T4
1960
1910
1840
1820
1780
1740
Tap T5
2090
2050
2010
1975
1940
1900
Tap T1
1515
1450
1380
1350
1300
1250
Tap T2**
1580
1520
1460
1400
1360
1300
Tap T3*
1740
1690
1650
1600
1540
1500
Tap T4
1960
1910
1840
1820
1780
1740
Tap T5
2090
2050
2010
1975
1940
1900
* Denotes factory set cooling speed
** Denotes factory set electric heating speed
NOTE: Airflow performance is with a dry coil
Table 4. Airflow Data
IMPORTANT - This product has been designed and manufactured to
meet ENERGY STAR criteria for energy efficiency. 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 efficiency and
shorten equipment life.
Specifications & illustrations subject to change without notice or incurring obligations.
O’ Fallon, MO | Printed in U.S.A. (10/10)
7092470 (Replaces 7091460)