Nordyne Single Package Heat Pump, Heat Pump Installation Manual

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13 SEER Single Package Heat Pump
Single Package Heat Pump
IMPORTANT:
Read this owner information to become familiar with the capabilities and use of your appliance. Keep this with literature on other appliances 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 installing contractor or distributor in your area.
INTRODUCTION
Your heat pump is a unique, all weather comfort­control system appliance. The basic operation of the heating/cooling system is described and illustrated on page 1 of this manual. The surprising fact that heat exists in air even at below-freezing temperatures is actually the basic law of physics which the heat pump uses to provide energy saving heating comfort. At outdoor temperatures of 47° Fahrenheit
(or 8° Celsius), your heat pump can deliver approximately 2 to 3 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. During the cooling season, the heat pump reverses the fl ow of the heat-absorbing refrigerant to become an energy-effi cient, central air conditioner.
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SECTION 1. OWNER INFORMATION
Your heat pump will heat and cool your home year round, saving your energy dollars. During the summer, a heat pump performs like any normal air conditioner. That is, the excess heat energy inside the home is absorbed by the refrigerant and exhausted outside the home. During the winter months, a heat pump performs like an air conditioner run in reverse. That is, available heat energy outside the home is absorbed by the refrigerant and exhausted inside the home. This is an effi cient heating means because 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.
SYSTEM MODE
FAN SWITCH
Figure 1. Typical Thermostat
TEMPERATURE SENSOR
It is the sole responsibility of the homeowner to make certain that the heat pump has been correctly set up and adjusted to operate properly.
A warranty certifi cate with full details is included with the heat pump. However, 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 specifi c examples of service calls which are not included in the limited warranty are:
1. Correcting wiring problems in the electrical circuit supplying the heat pump.
2. Resetting circuit breakers or other switches.
3. Adjusting or calibrating of thermostat.
To avoid misunderstandings at a later date, carefully review these responsibilities with your dealer or service company.
OPERATING INSTRUCTIONS
To Operate Your Heat Pump For Cooling —
1. Set the thermostat system switch to COOL and the thermostat fan switch to AUTO. (See Figure 1)
2. Set the ther mostat temperature selector to the desired cooling temperature. The outdoor unit fan, the indoor blower, and the compressor will all cycle on and off to maintain the indoor temperature at the desired cooling level.
NOTE: If the thermostat temperature level is re-adjusted, or if the thermostat system switch is re-positioned, the outdoor unit fan and the compressor may not start immediately. A protective timer circuit holds the compressor and the outdoor fan off for approximately fi ve minutes following a previous operation or the interruption of the main electric power.
To Operate Your Heat Pump For Heating —
1. Set the thermostat system switch for HEAT and the thermostat fan switch to AUTO. (See Figure 1)
2. Set the thermostat temperature selector to the desired heating temperature. The outdoor unit fan, the indoor blower, and the compressor will all cycle on and off to maintain the indoor temperature at the desired heating level.
NOTE: If the thermostat temperature level is re-adjusted, or if the thermostat system switch is re-positioned, the outdoor unit fan and the compressor may not start immediately. A protective timer circuit holds the compressor and the outdoor fan off for approximately fi ve minutes following a previous operation or the interruption of the main electrical power.
Emergency Heat — Some thermostats will include a system switch position termed EM HT or AUX HT, etc. This is a back-up heating mode to be used only if there is a suspected problem. With the system switch 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
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use of electric resistance heat in place of the heat pump will result in an increase in electric utility costs.
Defrost — 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 periodically defrost itself. During the defrost cycle, the outdoor fan will stop, while the compressor continues to run and heat the outdoor coil, causing the snow and ice to melt. During defrost, there may be some steam rise from the outdoor unit as the warm coil causes some melted frost to evaporate.
SECTION 2. INSTALLER INFORMATION
GENERAL
Read the following instructions completely before performing the installation.
These instructions are for the use of qualifi ed personnel specially trained and experienced in the installation of this type of equipment and related system components. Some states require installation and service personnel to be licensed. Unqualifi ed individuals should not attempt to interpret these instructions or install this equipment.
The single package heat pump is completely assembled, factory wired, and factory run tested. The units are ready for easy and immediate installation.
Use of components other than those speci­fi ed may invalidate ARI Certifi cation, Code Agency Listing, and limited warranty on the air conditioner.
PRE-INSTALLATION CHECK
Before any installation is attempted, 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.
The installer should 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.
The electrical supply should be checked to de­termine if adequate power is available. If there is any question concerning the power supply, contact the local power company.
The single packaged heat pumps are designed for outdoor installation only and can be readily connected into the high static duct system of a home. The only connections needed for instal­lation are the supply and return ducts, the line voltage, and thermostat wiring. A complete heat pump system typically consists of:
• Single Package Heat Pump
• Home Fittings Kit
• Unit Fittings Kit
• Thermostat
CAUTION:
To prevent personal injury and/or equipment damage, check thermostat manufacturer’s operation of fan relay circuit when in EMER HEAT. When the thermostat system switch is in the EMER HEAT position, the thermostat must energize the fan relay when the
fan switch is in the AUTO position.
Inspecting Equipment: All units are securely
packed at the time of shipment and, upon arrival, should be carefully inspected for damage. Claims for damage (apparent or concealed) should be fi led immediately with the carrier.
INSTALLATION
1. SELECT THE BEST LOCATION FOR THE HEAT PUMP UNIT
IMPORTANT: DO NOT PLACE UNIT UNDER THE HOME.
Select a solid, level position, preferably on a concrete slab, slightly above the grade level, and parallel to the home.
The hot condenser air must be discharged up and away from the home, and if possible, in a direction with the prevailing wind.
Do not place the unit in a confi ned space.
If practical, place the heat pump where it and
the ducts will be shaded from the afternoon sun when the heat load is greatest.
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Transition Duct Screws
6 ft.
24"
12"
12"
14” Duct Dimples
Figure 2. Minimum Unit Clearances
Try to select a site for the unit that is as close
as possible to the proposed return grille location.
Keep in mind that the length of the supply and
return ducts should be kept to a minimum with no sharp radiused bends.
2. UNPACK THE UNIT
It is recommended that the unit be unpacked at the installation site to minimize damage due to handling.
CAUTION:
Do not tip the unit on its side. Oil may enter the compressor cylinders and cause starting trouble. If unit has been set on its side, restore to upright posi­tion and do not run for several hours. Then run unit for a few seconds. Do this three or four times with fi ve minutes
between runs.
a. Remove the bands from around the unit.
b. Unfold the top and bottom cap fl anges.
c. Carefully remove the top cap and tube.
3. CLEARANCES
Minimum clearances, as specifi ed in Figure 2, MUST by maintained from adjacent structures to provide room for proper servicing and air circulation.
Supply Air
Figure 3. Return and Supply Air Fittings
Do NOT install unit in a confi ned or recessed area that will allow discharge air from the unit to re-circulate into the condenser air inlet, through the coil.
Service Access Clearance:
Blower access panel side .......................... 24”
Electrical compartment access panel side .. . 12”
Clearance between overhang and top of
unit .........................................................72”
Clearance around condenser coil area to wall
or shrubs (excludes duct panel side) .......... 12”
Minimum clearance to combustible materials:
Combustible Base (Wood or Class A, B, or C
roof Covering material) ...............................0”
Supply and Return Air Ducts .......................0”
Duct Connection side ..................................0”
DUCT REQUIREMENTS
The supply duct system, including the number and type of registers, will have much more ef­fect on the performance of an air conditioning system then any other factor. The duct must be suffi ciently large to conduct an adequate amount of air to each register.
4. INSTALL THE RETURN AND SUPPLY AIR
FITTINGS ON THE UNIT
The supply and return fi ttings are included with select models. If supplied, the duct fi ttings are
13 SEER Return Dia. (in)
2 Ton 12
2 1/2 Ton 14
3 Ton 14
3 1/2 Ton 14
4 Ton 14
Return Air
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Figure 4. Return Air Box
shipped in the supply duct. They attach to the unit openings with a fl ange and bead arrangement, secured with two sheet metal screws. Note: For ease of access, install fi tting before positioning unit in fi nal location.
SUPPLY DUCT
Position the supply duct collar, if supplied, so the edge of the unit opening fi ts between the fl ange and the bead. Overlap the collar ends keeping the small screw holes underneath. Align the holes in the crimped area and install one screw.
Note: It may be necessary to loosen the four screws that hold the transition duct in order to install the supply fi tting. Re-tighten when instal-
lation is complete.
Tap collar as necessary to ensure engagement with unit opening and install second screw. Tighten fi rst screw. Rotate collar clockwise so joint is near three o’clock position.
RETURN DUCT
The 12” return duct is installed in the same manner as the supply duct. If the duct has a 14” return, follow these instructions.
Align the slots with the holes in the collar and install two screws. Position the collar over the opening and align the four notches in the collar with the four dimples in the panel. Using self­drilling screws (10-16x.5) attach the collar to the rear panel. On some models a 14” duct collar is
provided for the return duct.
grille and fi lter (Figure 4) should not be located in heavy traffi c areas like hallways or center of rooms. A good spot is in a corner or under a table, if a minimum two inch clearance is available. If desired, the return opening can be located inside a closet with louvered doors that have an open area equal to or greater than the 12” x 20” grille furnished. The return air grille can be placed in the wall of a closet and the air ducted into the fi lter box through a boxed-in area at the closet fl oor level. Make sure the fi lter is readily accessible.
After determining the location of the return air opening, start the installation from under the home by cutting a small hole in the fi ber under­board to determine how the fl oor joist location will affect cutting the opening needed for the box. Floor joists generally are located on 16” centers, leaving 14-3/8” between joists. After measuring the return air box (approximately 12-1/4” x 20­1/4”), cut the hole through the fl oor so that the box will fi t between the fl oor joists. Care should be taken when cutting through carpeting to avoid snags. In most installations it will be necessary to cut a similar hole in the fi berboard directly under the hole in the fl oor. However, if the fl oor is more than ten inches deep, it will only be necessary to cut a hole for the collar on the return air box or for the insulated duct.
Set the box into the opening and fasten with screws or nails. Put the fi lter and return air grille in place.
6. LOCATING AND INSTALLING THE SUPPLY DAMPER(S)
When locating the supply damper(s), carefully check fl oor joists and frame members that could interfere with the installation of the damper or fl exible duct. Ideally, the damper should be located in the bottom of the main duct, forward of center of the home, at least three feet from the nearest register. The round supply opening in the slanted side of the damper should face
AUTOMATIC DAMPER IS CLOSED
WHEN HEAT PUMP IS OFF
5. LOCATING AND INSTALLING THE RETURN AIR ASSEMBLY
To avoid complications, locate and install the return air assembly fi rst. The return air box with
Figure 5. Supply Damper
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the side of the home where the heat pump is
6
6
4
4
5
2
3
1
5
2
3
6
4
1
7
located. To locate the center of the heat duct, fi rst cut a small hole in the fi berboard below the duct at the desired location. After locating the duct center, cut a hole approximately 3/4” larger than the damper opening in the fi berboard. Cut a 9-1/8” x 13-1/8” hole in the duct and bend over all tabs fl at on the inside of the heat duct. After inserting the damper into the duct, bend over all tabs fl at on the inside of the heat duct. Seal the opening between the fi berboard and damper or fl exible duct.
Elbow
P-Trap
DUCTING SYSTEM
DUCT REQUIREMENTS
The supply duct system, including the number and type of registers, will have much more effect on the performance of the system than any other factor. The duct must be suffi ciently large to conduct an adequate amount of air to each register.
TYPICAL APPLICATIONS
Figure 6. Drain Trap
Air ducts should be installed in accordance with the standards of the National Fire Protec­tion Association “Standard for Installation of Air Conditioning and Ventilation Systems” (NFPA 90A), “Standard for Installation of Residence Type Warm Air Heating and Air Conditioning Systems” (NFPA 90B), these instructions, and all applicable codes.
Ref. No. Description
1
2
3
4
5
6
6
7
MULTIPLE DUCT APPLICATIONSINGLE DUCT APPLICATION
12” x 20” Return Air
16” x 20” Air Filter
12” x 20” Grille
Supply Damper
12” or 14” Diameter Flex Return Duct
12” Diameter Flex Supply Duct
12” x 12” x 12” “Y” Fitting
Figure 7. Typical Applications
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Note: For highly resistive duct systems it may be necessary to add an additional return air duct and or supply to achieve maximum performance and prevent coil icing and refrigerant fl ood back.
THE HEAT PUMP SYSTEM WILL NOT COOL OR HEAT THE HOME IF THE AIR IS LOST TO THE OUTSIDE THROUGH LEAKS IN THE DUCT SYSTEM. ALSO, DUCTS WHICH ARE COLLAPSED OR RESTRICTED BY FOREIGN OBJECTS WILL PREVENT ADEQUATE AIR FLOW.
CONNECTING THE RETURN AND SUPPLY AIR FLEXIBLE DUCTS
The return duct may be 12” or 14” diameter de­pending on unit size. (See Table on page 4)
a. The supply duct for all units is twelve inches
in diameter.
b. The fl exible ducts can be connected to the
corresponding fi ttings with the clamps pro­vided with the ducts. Note: All connections should be leak tight or a loss in cooling capacity will result.
c. The fl exible ducts may be cut to the required
length, see instructions packed with duct. Keep all ducts as short and straight as possible. Avoid sharp bends.
Model
2 Ton
2.5 Ton
3 Ton
3.5 Ton
4 Ton
* Factory Setting
Wire Color /
Speed Tap
Red / T1 Low* 750
T2 Med/Low 1,000
Orange/ T3 Medium* 1,140
T4 Med/High 1,300
T5 High 1,350
Red Low 760
Black High* 1000
T1 Low 750
T2 Med/Low 1,000
Red / T3 Medium* 1,140
T4 Med/High 1,300
Orange / T5 High* 1,350
Red / T1 Low* 1,340
Orange / T2 Med/Low* 1,450
T3 Medium 1,650
T4 Med/High 1,750
T5 High 1,965
T1 Low 1,340
Red / T2 Med/Low* 1,450
T3 Medium 1,650
Orange / T4 Med/High* 1,750
T5 High 1,965
Motor
Speed
Air Flow
(0.3 In. WC)Q3RD
Figure 8. Motor Lead Connection
d. Ducts may be spliced with sheet metal
sleeves and clamps. (See Ducting Installation Accessories page 6.)
e. Once the inner duct is connected to the
proper fi tting, the insulation and plastic sleeve should be pulled over the connection and clamped.
f. For homes with multiple supply ducts or for
special applications, a Y fi tting is available to divide the supply air so it can be ducted to different areas of the home for more effi cient cooling. Note: The Y fi tting should be insulated for maximum performance.
Blower Speed For optimum system perform­ance and comfort, it may be necessary to change the factory set speed. See Figure 8 for factory settings.
If Standard Motor (2.5 Ton)
1. Disconnect all electrical power to the unit and remove the service panel.
2. The blower speed is preset at the factory for operation at the same speed for heating and cooling.
3. Place the desired blower speed lead on the “COM” terminal of the blower relay. Use another wire tie (fi eld supplied) to bundle the remaining motor lead up and out of the way.
If High Effi ciency Motor (2, 3, 3.5, and 4 Ton)
1. Disconnect all electrical power to the unit
and remove the service panel.
2. Locate the orange and red wires
terminated to the blower motor. The orange wire controls the cooling operation and the red wire controls the heating operation.
3. Verify the required speed from the airfl ow
data found in Figure 8. Place appropriate wire on the appropriate motor speed tap for the required airfl ow.
CAUTION:
To avoid personal injury or property damage, make certain that the motor leads cannot come into contact with any uninsulated metal components of the unit.
Check all factory wiring per the unit wiring diagram and inspect the factory wiring connec­tions to be sure none loosened during shipping or installation.
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CONDENSATE DRAIN
A 3/4” condensate fi tting extends out of the side of the unit. The drain trap, shipped in the electrical compartment, must be installed to prevent water from collecting inside the unit. Thread the elbow provided with the unit into the drain connection until hand tight. Install the trap into the fi tting making sure it is level. Route the condensate from the trap to a suitable drain. Any tubing or hose connected must have the outlet below trap level for proper drainage.
c. Ground the heat pump unit using the green
grounding screw provided in the control panel.
Low Voltage
a. Route 24v control wires through the sealing
grommet near the power entrance. (See Figure 9.)
b. Connect the control wires to the defrost board
and blower relay wire. (See Figure 10.)
2. OVERCURRENT PROTECTION
WARNING:
Turn off electrical power before servic­ing controls. Severe electrical shock may result unless power is turned off. Unit must be installed in compliance with the National Electrical Code (NEC) and local codes.
ELECTRICAL CONNECTIONS
1. ELECTRICAL SERVICE
High Voltage
a. Install a branch circuit disconnect of adequate
size per NEC. Locate the disconnect within sight of the unit.
b. Extend leads through power wiring hole
provided. Connect L1 and L2 directly to the contactor. (See Figure 9.)
In general, the best fuse or breaker for any heat pump is the smallest size that will permit the equipment to run under normal use and service without nuisance trips. Such a device, sized properly, gives maximum equipment protection. The principal reason for specifying
time delay type is to prevent nuisance trips
a when the unit starts.
In the event that a fuse does blow or a breaker trips, always determine the reason. Do not arbi­trarily put in a larger fuse or breaker and do not, in any case, exceed the maximum size listed on the data label of the unit.
3. LOCATING THE THERMOSTAT
Locate the thermostat away from drafts and slamming doors and place it where there is a free fl ow of air. Mount on an inside wall approximately fi ve feet from the fl oor.
High Voltage
Low Voltage
8
Figure 9. Power Entry
Page 9
W2
Y1
Outdoor
Green
C
R
G
Thermostat
(Factory Option)
O
E
INDOOR
THERMOSTAT
SUB-BASE
Typical Wiring (Field Supplied) for 1-Stage Cool, 1 Stage Electric Heat
C
W2
DEFROST
Green
BOARD
1
Brown
2
Orange
3 4 5 6 7
8
9
Accessory Heat Plug
Optional 2nd Stage Outdoor Thermostat (Field Supplied)
Outdoor Thermostat
(Factory Option)
Y1
R
G
O
E
INDOOR
THERMOSTAT
SUB-BASE
Typical Wiring (Field Supplied) for 1-Stage Cool, 2-Stage Electric Heat
Figure 10. Typical Heat Pump Thermostat Connections
DEFROST
BOARD
with an Optional Outdoor Thermostat
1
Brown
2
Orange
3 4 5 6 7
8
9
Accessory Heat Plug
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Do not locate near a lamp, kitchen range, direct sunlight, or in line with air fl ow from supply registers.
Connect the Heat-Cool Thermostat: The heat-cool thermostat is equipped with a system HEAT-COOL switch, which provides a positive means of preventing simultaneous operation of the heating and cooling units. The thermostat is also equipped with an ON-AUTO fan switch which allows the home owner to operate the indoor blower when air circulation is desired.
be fi eld installed. See Specifi cations Sheet for available kits and their application.
• Select the correct size heat package for the installation.
• Follow installation instructions provided with each heater kit.
• Installation is most easily accomplished before making duct or electrical connections.
• Blower speed must be set to high speed for electric heat operation.
Connect the low voltage wires to the respective terminals on the thermostat base. See thermo­stat instruction sheet for more detailed informa­tion. (See Figure 10).
If two stage heating is desired, an optional 2nd stage outdoor thermostat may be installed:Connect the thermostat to the orange
low voltage wire and the E terminal on the defrost board (See Figure 10 page 9). See the thermostat instructions for details on setting the outdoor thermostat.
4. DEFROST CYCLE CONTROL
The defrost cycle is initiated via a signal from the defrost sensor on the outdoor coil to the defrost control board inside the control panel indicating the coil temperature is low enough to start accumulating frost. The board has interval settings of 30 minutes, 60 minutes, and 90 minutes. These time intervals represent the time elapsed before defrosting cycle starts and they are dependent on the climate conditions of the installation. A 30 minute setting would be recommended in a moist climate such as Seattle, Washington. A 90 minute setting would be adequate in a dry climate such as southern Arizona. The factory time interval setting is 30 minutes.
SYSTEM OPERATION
1. PRE-START CHECK LIST
The following check list should be observed prior to starting the unit.
Is the unit level? It should be level or slightly
slanted toward the drain for proper conden­sate drainage.
Is the unit installed with the proper clear-
ances (See Figure 2)?
Is the wiring correct according to the wiring
diagram and electrical codes?
Are all the wiring connections tight? Check
the condenser fan to make sure it turns freely.
Is the overcurrent protection properly
sized?
Is the thermostat wired correctly? Is it
installed in a proper location?
2. START-UP PROCEDURE
The control circuit consists of an anti-short cycle timer that will not let compressor re-start before fi ve (5) minutes have elapsed.
5. OUTDOOR THERMOSTAT (Factory Option)
The outdoor thermostat prevents the electrical auxiliary heat (if used) from operating above a desired set point. The factory temperature setting is at 40°F.
6. ELECTRIC HEAT PACKAGE (OPTIONAL)
The heat pumps are shipped without an auxiliary electric heat kit installed. If electric heat is desired, an accessory Heater Kit must
10
Set the thermostat system switch to OFF, and the thermostat fan switch to AUTO. Apply power at the disconnect switch and check the system operations:
a. Air Circulation — Leave the thermostat
system switch at OFF, and set the thermostat fan switch 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 insuffi cient air is detected.
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Set the thermostat fan switch to AUTO; the blower should stop running.
b. System Heating — Set the thermostat
system switch to HEAT and set the thermostat fan switch to AUTO. Position the thermostat temperature selector above the existing room temperature and check for the discharge of warm air at the supply registers.
c. System Cooling — Set the thermostat
system switch to COOL and set the thermostat fan switch to AUTO. Position the thermostat temperature selector below the existing room temperature. Allow the cooling system to operate for several minutes and check for the discharge of cool air at the supply registers.
d. Short cycle protection — The control
circuit is equipped with a time-delay feature for protection against short cycling. With the system operating in the cooling mode, gradually raise the thermostat temperature setting until the whole system de-energizes. Immediately lower the thermostat temperature to the original setting and verify that the indoor blower is energized. After approximately 5 minutes the compressor and the outdoor fan will energize.
Defrost T-stat is closed at 32° or below and is open at 68° or above. But it’s state is unknown if the temperature is between 32°F and 68°F. The defrost thermostat tells the board whether a defrost cycle needs to be started or terminated. 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.
3. Defrost board speed-up. With compressor
running in heat mode, next jump the “Test” pin to “C” on terminal strip. This will initiate a defrost test in 5, 10 or 15 seconds (This is determined by the 30, 60 or 90 minute defrost pin settings. The factory setting will be 30 minutes). Note that this will bypass the compressor off delay when the unit goes into defrost test and if left in defrost test, the delay will be bypassed when the test is terminated by the processor. If the jumper is removed before the test is over the processor will perform the remainder of a normal defrost. See step 2 above.
4. Remove the jumpers.
e. Emergency Heat — (Available only when
Electric heat is supplied) Set the thermostat system switch to EM HT and set the thermostat fan switch to either AUTO (intermittent air) or to ON (continuous air). Position the thermostat temperature selector above the existing room temperature and check the following:
1. The thermostat auxiliary heat light (RED) should be on.
2. The heat pump compressor and the fan should not run; low voltage circuit remains energized.
3. The blower will run according to the thermostat fan switch setting
DEFROST CONTROL BOARD OPERATION AND TESTING
1. Terminals “R”-”C” must have 24±V present between them in order for the time delay and defrost sequences to be operational.
2. Jumper the “T2”-”DFT” test pins. This will indicate to the board that the defrost T-stat is closed(if the compressor is running).
Note: The delay/no-delay pin concerns compressor operation during defrosts. 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. To switch from no-delay to delay remove the pin from the “no-delay” pin location and shift it to the “delay” pin location.
Speed up changes:
Manually initiating a defrost will cause the
compressor to run continually when entering defrost.
Normal defrost operation:
To test normal defrost operation when the temperature is above 35°F, jumper “R” to “DFT” on the 624656 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.
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*
Note: All pressures are listed in psig. and all temperatures in °F.
- Shaded Boxes indicate flooded conditions
- Rated Design Values. Suction Pressure will be lower than design value if indoor air flow, entering dry bulb, or entering wet bulb
temperatures are lower than design.
- Discharge temperatures greater than charted values indicate an undercharged system.
Refrigerant Charging Chart Legend for Cooling Mode of Operation
2
TON
Suct.
Press.
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
72 150 121 74 152 127 166 128 76 154 132 168 133 182 134 78 157 136 170 138 184 138 197 140 80 161 139 173 141 186 143 199 144 213 145 82 177 144 189 147 202 149 215 150 229 151 84 192 150 205 153 217 154 231 156 245 157 86 208 156 221 158 233 160 247 161 260 163 88 212 160 224 162 236 164 249 165 262 167 90 228 166 240 168 252 169 264 171 92 243 172 256 174 268 175 94 259 178 271 180 96 275 184 98
OUTDOOR TEMPE RATURE (°F)
9095100
10570758085
Note: If jumper is left on the “Test” to “common” pins permanently, the defrost cycle will become inoperable.
depending on the defrost time selection. Compressor delay will not function during speed-up.
3. This test will end in 5 seconds if the “TEST”-
Defrost Test Procedure for 624656
1. Jumper “T2” to “DFT” at the test terminals.
2. With unit running in heat mode, short the “TEST” terminal to the common terminal near it. This will speed up the board and cause it to enter defrost mode in 5/10/15 seconds
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.
13 SEER - Refrigerant Charging Tables for Cooling Mode of Operation
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Page 13
13 SEER - Refrigerant Charging Tables
*
Note: All pressures are listed in psig. and all temperatures in °F.
- Shaded Boxes indicate flooded conditions
- Rated Design Values. Suction Pressure will be lower than design value if indoor air flow, entering dry bulb, or entering wet bulb
temperatures are lower than design.
- Discharge temperatures greater than charted values indicate an undercharged system.
Refrigerant Charging Chart Legend for Cooling Mode of Operation
3
TON
Suct.
Press.
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
72 156 121 74 158 126 172 128 76 160 131 174 133 188 134 78 163 136 176 138 190 139 204 141 80 167 138 179 142 192 144 206 146 220 148 82 183 145 195 148 208 150 222 152 236 154 84 199 151 211 154 224 157 238 159 252 161 86 215 158 227 160 240 163 254 165 268 167 88 218 161 231 164 243 167 256 169 270 171 90 234 168 247 171 259 173 271 175 92 250 175 263 177 275 180 94 266 182 279 184 96 282 188 98
105707580859095
100
2-1/2
TON
Suct.
Press.
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
75 147 122 77 149 127 163 128 79 152 132 165 133 179 135 81 154 137 168 138 181 139 195 141 83 158 139 170 142 183 144 197 145 211 147 85 174 145 186 148 199 150 213 151 227 153 87 190 152 202 154 215 156 229 157 243 159 89 206 158 218 160 231 162 245 163 259 165 91 209 161 222 164 235 166 247 167 261 169 93 225 168 238 170 251 172 263 173 95 241 174 254 176 267 178 97 257 180 270 182 99 273 186
101
707580859095100
105
for Cooling Mode of Operation Continued
13
Page 14
13 SEER - Refrigerant Charging Tables
*
Note: All pressures are listed in psig. and all temperatures in °F.
- Shaded Boxes indicate flooded conditions
- Rated Design Values. Suction Pressure will be lower than design value if indoor air flow, entering dry bulb, or entering wet bulb
temperatures are lower than design.
- Discharge temperatures greater than charted values indicate an undercharged system.
Refrigerant Charging Chart Legend for Cooling Mode of Operation
3-1/2 TON
Suct.
Press.
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
69 156 127 71 158 133 171 135 73 160 138 173 140 187 142 75 163 141 176 145 189 147 202 150 77 167 144 179 148 191 152 204 154 218 157 79 182 151 194 156 207 159 220 162 234 165 81 198 159 210 163 222 166 236 169 249 172 83 213 166 225 170 238 173 251 176 265 179 85 217 170 229 174 241 177 253 180 267 183 87 232 178 244 181 257 184 269 187 89 248 185 260 189 272 192 91 263 193 276 196 93 279 200 95
707580859095100
105
4
TON
Suct.
Press.
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
Dis.
Press.
Dis.
Temp .
67 157 131 69 159 136 174 139 71 161 142 176 144 191 147 73 162 150 178 149 193 151 209 154 75 166 152 180 155 196 156 211 159 226 161 77 183 158 197 161 213 163 228 166 243 169 79 201 165 215 168 230 170 245 173 260 175 81 219 171 233 174 247 177 262 179 277 182 83 222 175 236 178 251 181 264 183 279 186 85 240 182 254 185 268 188 281 190 87 257 189 272 192 286 195 89 275 196 289 199 91 293 204 93
707580859095100
105
for Cooling Mode of Operation Continued
14
Page 15
8. Employez uniquement des conducteurs
7. Couper le courant avant de faire letretine.
en cuiver.
de 150V a la terre.
9. Ne convient pas aux installations de plus
WHITE
9 9
WHITE
876 876
GREY
RED
432
1
5
432
1
5
RED
BLUE
WHITEWHITE
BROWN
ORANGE
YELLOW
COIL
VALVE
REVERSING
208/230 VOLT ESAHP ELGNIS/ZH06PMUP TAEH EGAKCAP LLAMS
BLOWER
BROWN
5. On models w/no pressure switch Yellow wire connects
4. For replacement wires use conductors suitable for 105°C.
“Y” & “T1” on Defrost Board.
MOTOR
RED
BROWN
CAPACITOR
WAY.
ROUTE WIRE INTO
ELEC. BOX ON UNIT.
TIE EXTRA MATERIAL
UP SO IT IS OUT OF THE
COM
RELAY
BLOWER
NC
NO
RED
L1
L2
BLACK
SWITCH
(SEE NOTE 5)
LOW PRESSURE
(SELECT MODELS ONLY. )
T1
T2
C
Y
OW2RE
BOARD
DEFROST
ADAPTER
REF; 631849 AMP
R
BLACK
ORANGE
GREEN
COM
TRANSFORMER
240V
TO “G” ON
24V
RED
T-S TA T
MOTOR
C
OUTDOOR FAN
S
BLUE
CONTROL
BROWN
FUSE
3 AMP
BLACK
BLACK
BLUE
BLACK
T1
T2
DFTE R W2 O Y C
DF1
DF2
RED
RED
RED
SENSOR
DEFROST
GROUND TO
IF SUPPLIED
DUAL
CAPACITOR F
H
C
YELLOW
BLACK
RED
S
COMPRESSOR
C
GREY
(ON SELECT MODELS
OUTDOOR THERMOSTAT
R
IS INSTALLED)
BROWN JUMPER
BLACK
COMPRESSOR
CRANKCASE HEATER
WIRING DIAGRAM
NOTES:
2. For supply connections use copper conductors only.
1. Disconnect all power before servicing.
3. Not sutiable on systems that exceed 150V to ground.
LEGEND:
FIELD WIRING
710339C
LOW VOLTAGE
HIGH VOLTAGE
15
Page 16
ZH06TLOV 032/802
710555B
WHITE
876
9
876
9
GREY
WHITE
7. Couper le courant avant de faire letretien.
8. Employez uniquement des conducteurs
en cuivre.
9. Ne convient pas aux installations de plus
de 150V a la terre.
GREEN-YELLOW
N
L
G
C
T1
MOTOR
BLOWER
RED
ORANGE
“Y” & “T1” on Defrost Board.
4. For replacement wires use conductors suitable for 105° C.
5. On models w/no pressure switch, Yellow Jumper connects
MOTOR
OUTDOOR FAN
S
T5
T2
T4
T3
WHITE
C
R
YELLOW
BLOWER
RED
BLUE
RELAY
432
5
432
5
RED
WHITE
BLACK
WHITE
GREEN
TRANSFORMER
ORANGE
RED
COM
240V
1 1
BROWN
LOW PRESSURE SWITCH
CONTACTOR
COMPRESSOR
T1
L1
T2
L2
C
BLACK
Y
O
W2R
E
24V
BROWN
RED
(SELECT MODELS ONLY
SEE NOTE 5)
DEFROST
FUSE
3 AMP
COIL
BLACK
BLACK
RED
RED
BLUE
BLACK
T1
T2
BOARD
CONTROL
DFTE R W2 O Y C
RED
DF1
DF2
VALVE
REVERSING
SENSOR
DEFROST
BLACK
DUAL
CAPACITOR F
H
C
RED
S
COMPRESSOR
C
GREY
BROWN JUMPER
(ON SELECT MODELS
OUTDOOR THERMOSTAT
YELLOW
R
BLACK
IS INSTALLED)
BLUE
ORANGE
2. For supply connections use copper conductors only.
NOTES:
1. Disconnect all power before servicing.
3. Not suitable on systems that exceed 150V to ground.
SMALL PACKAGED HEAT PUMP- SINGLE PHASE
PLEASE LEAVE THESE INSTALLATION
INSTRUCTIONS WITH THE HOMEOWNER.
¢7084456¤
708445D
BLACK
T-S T AT
TO “G” ON
LEGEND:
FIELD WIRING
LOW VOLTAGE
HIGH VOLTAGE
INSTALLER
708445D (Replaces 708445C)
Specifi cations and illustrations subject to change
without notice and without incurring obligations. (08/08)
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