How it Works
Acnodes
Loading...
Q5RF
User Manual
20 pgs1.51 Mb0

Acnodes Q5RF User Manual

Q5RF SERIES
15 SEER
USER’s MANUAL & INSTALLATION INSTRUCTIONS
Single Package Heat Pump - 2 Stage, R-410A
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.
DO NOT DESTROY. PLEASE READ CAREFULLY AND KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.
USER INFORMATION
About the Heat Pump ................................... 3
Operating Instructions ................................3
Cooling Operation ....................................3
Heating Operation ....................................3
Emergency Heat ...................................... 3
Defrost .....................................................3
System Shutdown ....................................3
Forced Defrost Mode (Field Test) .............12
Anti Short Cycle Timer Test ......................12
Heating Mode ........................................12
Cooling Mode .........................................13
Adjustment of Refrigerant Charge ............13
Charging an R410A Unit in AC
Mode with Outdoor Temp above 65° F .....13
Charging an R410A Unit in Heat Mode ....13
Unit Maintenance ........................................13
INSTALLER INFORMATION
Safety Information ........................................4
General Information .....................................4
Before You Install this Unit ..........................4
Locating the Heat pump ............................ 4
Air Duct System .........................................5
Unconditioned Spaces .............................5
Condensate Drainage .................................5
Heat Pump Installation .................................5
Unpacking the Unit ....................................5
Minimum Clearances .................................5
Service Access Clearance ......................5
Clearances to Combustibles ...................5
Installing Return & Supply Air Fittings ........6
Return Duct ............................................. 6
Supply Duct ............................................6
Locating & Installing the Return Air
Assembly ....................................................6
Locating & Installing the Supply
Dampers .................................................... 7
Connecting the Return & Supply Air
Flexible Ducts .............................................7
Electrical Connections .................................8
Pre - Electrical Checklist.............................8
Line Voltage ................................................8
Grounding ................................................... 8
Overcurrent Protection ............................... 9
2 - Speed Outdoor Fan Motor ..................... 9
Blower Speed ............................................9
Ambient Sensor Mounting ..........................9
Demand Defrost Control ...........................11
Electric Heat Package ..............................11
Thermostat Connections ..........................11
Startup & Adjustments...............................12
Pre - Start Checklist .................................12
Start - Up Procedure ................................12
Air Circulation ........................................12
System Heating .....................................12
System Cooling ......................................12
Short Cycle Protection ...........................12
Emergency Heat ....................................12
2
Refrigerant Charging Charts for
Cooling Mode of Operation .......................14
Figure 11 - 2 Ton Units .............................14
Figure 12 - 3 Ton Units .............................14
Figure 13 - 4 Ton Units .............................15
Figure 14 - 5 Ton Units .............................15
Refrigerant Charging Tables for Heating
Mode of Operation ......................................16
Table 2 - Chart for 2 & 3 Ton Units ............16
Table 3 - Chart for 4 & 5 Ton Units ............17
Wiring Diagrams .........................................18
Figure 15 - 2 & 3 Ton Units .......................18
Figure 16 - 4 & 5 Ton Units .......................19
Component Functions ...............................20
Low Pressure Switch ................................20
High Pressure Switch ...............................20
IMPORTANT SAFETY INFORMATION
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.
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 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.
USER INFORMATION
ABOUT THE HEAT PUMP
Your heat pump is a unique, all weather comfort­control 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 effi cient 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 fl ow of the heat-absorbing refrigerant to become an energy-effi cient, central air conditioner. Excess heat energy inside the home is absorbed by the refrigerant and exhausted outside the home.
Operating 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.
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.
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 back­up 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 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 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.
System Shutdown 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.
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
Fan
Mode
Figure 1. Digital Thermostat
System
Mode
Temperature
Selector
3
INSTALLER INFORMATION
SAFETY INFORMATION
WARNING:
The information listed below must be followed during the installation, service, and operation of this unit. Unqualifi ed 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 per
• 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 qualifi ed 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.
• Install this unit only in a location and position as
specifi ed on page 4. 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.
sonal injury or death
.
GENERAL INFORMATION
Single packaged heat pumps are ready for easy and immediate installation and can be readily connected into the high static duct system of a home. This unit is completely assembled, wired, and run tested at the factory. This heat pump is designed for outdoor installation only. The only connections needed for installation are the supply and return ducts, the line voltage, and thermostat wiring. Use of components other than those specifi ed may invalidate ARI Certifi cation, Code Agency Listing, and limited warranty on the air conditioner.
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 fi ns are straight. If necessary, comb fi ns to remove fl attened or bent fi ns. Claims for damage (apparent or concealed) should be fi led 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.
• Suffi cient clearance for unobstructed airfl ow through the outdoor coil must be maintained in order to achieve rated performance. See Figure 3 (page 6) for minimum clearances to obstructions.
• Consideration should also be given to availability of electric power, service access, noise, and shade.
4
Air Duct System
Air ducts must 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. 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 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. See Figure 4 (page 6).
• Duct work should be attached directly to the unit fl anges for horizontal applications.
• If roof curb is installed, the ducts must be attached to the curb hangers, not the unit.
• 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
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.
The heat pump system will not cool or heat the home if air is lost to the outside through leaks in the duct system. Ducts that are collapsed or restricted by foreign objects will also prevent adequate air fl ow.
Condensate Drainage
A 3/4” condensate fi tting extends out of the side of the unit (Figure 2). The drain trap, shipped in the electrical compartment, must be installed to prevent water from collecting inside the unit.
1. Thread the elbow provided with the unit
into the drain connection until hand tight.
2. Connect the condensate tubing onto the fi tting,
forming a trap near the drain connection.
3. Route the condensate tube from the trap
to a suitable drain. NOTE: For proper drainage, make sure the trap is level to the ground and tubing outlet is below trap level.
Elbow
P-Trap
Figure 2. Drain Trap
HEAT PUMP INSTALLATION
Unpacking 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.
1. Remove the bands from around the unit.
2. Unfold the top and bottom cap fl anges.
3. Carefully remove the top cap and tube.
Minimum Clearances
Minimum clearances MUST be maintained from adjacent structures to provide room for proper servicing and air circulation. 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. See Figure 3 (page 6).
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”
Clearances to Combustibles: Combustible Base (Wood or Class A, B, or C
roof Covering material) ...............................0”
Supply and Return Air Ducts .......................0”
Duct Connection side ..................................0”
5
12"
24"
TO BE
TOP OF UNIT
UNOBSTRUCTED
0"
12"
Figure 3. Minimum Unit Clearances
Installing Return & Supply Air Fittings
The supply and return fi ttings are included with the unit and located in the supply duct. They attach to the unit openings (Figure 4) with a fl ange and bead arrangement and may be, secured with two sheet metal screws. NOTE: For easier access, install fi ttings before positioning unit in fi nal location.
Return Duct
1. Align the slots with the holes in the collar and install two screws.
2. Position the collar over the opening and align the four notches in the collar with the four dimples in the panel.
3. Using self-drilling screws (10-16x.5) attach the collar to the rear panel.
Supply Duct
1. Position the supply duct collar so the edge of the unit opening fi ts between the fl ange and the bead.
Transition Duct Screws
Supply Air
14” Duct Dimples
Return Air
Figure 4. Return and Supply Air Fittings
2. Overlap the collar ends keeping the small screw holes underneath.
3. 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. Re­tighten when installation is complete.
4. Tap collar (if necessary) to ensure engagement with unit opening and install second screw.
5. Tighten fi rst screw and rotate collar clockwise so joint is near three o’clock position.
Locating & Installing the Return Air Assembly
To simplify installation, locate and install the return air assembly fi rst. If desired, the return opening can be located inside a closet with louvered doors that has 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.
MULTIPLE DUCT APPLICATIONSINGLE DUCT APPLICATION
Figure 5. Typical Duct Applications
6
Loading...
+ 14 hidden pages
Buy Points How it Works FAQ Contact Us Questions and Suggestions Privacy Policy Cookie Policy Terms of Use