HVAC Guide Specifications Ductless Mini-splits – Hyper Heat PK 30/36 – Wired Controller Section 15700 – Mechanical HVAC Capacity Range: 2.5 to 3 Tons Nominal Mitsubishi Model Number: PKA-A-FA (wall-mounted) / PUZ-HA30/36NHA Hyperheat type Heat Pump System – Wired wall-mounted controller Part 1 – General 1.1 System Description The Heat Pump system shall be a Mitsubishi Electric split system with Hyper Heat and Variable Speed Inverter Compressor technologies. The system shall consist of a wall-mounted indoor section with wired, wall mounted controller and a horizontal discharge, single-phase Hyper Heat outdoor unit. 1.2 System with wired wall mounted controller System Model Numbers Indoor Units Outdoor Units PKA-A30FA PUZ-HA30NHA PKA-A36FA PUZ-HA36NHA 1.3 Quality Assurance The units shall be tested by a Nationally Recognized Testing Laboratory (NRTL) and shall bear the ETL label. All wiring shall be in accordance with the National Electrical Code (N.E.C.). The units shall be rated in accordance with Air-conditioning Refrigeration Institute’s (AHRI) Standard 210 / 240 and bear the AHRI Certification label. The units shall be manufactured in a facility registered to ISO 9001 and ISO 14001, which are a set of standards applying to product and manufacturing quality and environmental management and protection set by the International Standards Organization (ISO A dry air holding charge shall be provided in the indoor section. The outdoor unit shall be pre-charged with R-410a refrigerant for 100 feet of refrigerant tubing. System efficiency shall meet or exceed 16.0 SEER for 36,000 BTU/h and 14.5 SEER for 30,000 BTU/h. 1.4 Delivery, Storage and Handling Unit shall be stored inside and carefully handled according to the manufacturer’s recommendations. The wall mounted remote controller shall be shipped inside the carton and packaged with the indoor unit and shall be able to withstand 105°F storage temperatures and 95% relative humidity without adverse effect. Part 2 – Warranty 2.1 The units shall have a manufacturer’s parts and defects warranty for a period one (1) year from date of installation. The compressor shall have an extended warranty of 6 years from date Page 1 of 6 Ductless Mini-splits – Hyper Heat PK Rev. 1 of installation. If, during this period, any part should fail to function properly due to defects in workmanship or material, it shall be replaced or repaired at the discretion of the manufacturer. 2.2 This warranty does not include labor. 2.3 Manufacturer shall have over 25 years of continuous experience in the U.S. market. Part 3 Performance 3.1 Each system shall perform in accordance to the ratings shown in the table below. Cooling performance shall be based on 80°F DB, 67°F WB (26.7°C DB, 19.4°C WB) for the indoor unit and 95°F DB, 75°F WB (35°C DB, 29.3°C WB) for the outdoor unit. Heating performance shall be based on 70°F DB, 60°F WB (21.1°C DB, 15.6°C WB) for the indoor unit and 47°F DB, 43°F WB (8.3°C DB, 6.1°C WB) for the outdoor unit. 3.2a Performance Table – 30,000 BTU/h Capacity System Cooling Heating System Model TPW TPW Capacity Capacity SEER Number Cooling Heating Btu/h Btu/h PKA-A30FA 18,000 – 18,000 – 2,730 3,460 14.5 30,000 34,000 HSPF IV (V) COP CFM (Hi/Dry) 8.9 (7.2) 2.71 705 HSPF IV (V) COP CFM (Hi/Dry) 9.4 (7.3) 3.59 990 TPW = Total Power Watts 3.3a Hyper Heat Performance Table - 30,000 BTU/h Capacity System Hyper Heat Performance Heating TPW HSPF COP At Outdoor DB Capacity Heating IV Btu/h Heating at 17°F (-8.3°C) 32,000 5,600 5.7 1.67 Heating at 5°F (-15°C) 32,000 6,370 5.0 1.47 Heating at -4°F (-20°C) 28,480 6,504 4.4 1.28 Heating at -13°F (-25°C) 25,600 6,574 3.9 1.14 3.2b Performance Table – 36,000 BTU/h Capacity System Cooling Heating System Model TPW TPW Capacity Capacity SEER Number Cooling Heating Btu/h Btu/h PKA-A36FA 18,000 – 18-+,000 5,030 3,610 16.0 34,200 – 38,000 TPW = Total Power Watts 3.3b Hyper Heat Performance Table - 36,000 BTU/h Capacity System Hyper Heat Performance Heating TPW HSPF COP At Outdoor DB Capacity Heating IV Btu/h Heating at 17°F (-8.3°C) 38,000 5,300 7.1 2.10 Heating at 5°F (-15°C) 38,000 5,860 6.4 1.90 Heating at -4°F (-20°C) 34,200 6,072 5.6 1.65 Heating at -13°F (-25°C) 30,400 6,169 4.9 1.44 Page 2 of 6 Ductless Mini-splits – Hyper Heat PK Rev. 1 Part 4 - Design 4.1 Indoor Unit 4.1.1 Cabinet The indoor unit cabinet shall be wall mounted by means of a factory supplied mounting plate. The cabinet shall be formed from high strength molded plastic with front panel access for filter cleaning and service. Cabinet color shall be Munsell 3.4Y 7.7/08. The indoor unit shall be factory assembled, wired and tested. Contained within the indoor unit shall be all factory wiring and internal piping, control circuit board, fan, and fan motor and filter. The unit, in conjunction with the wired, wall-mounted, digital controller shall have a self-diagnostic function, 3-minute time delay mechanism, an auto restart function, and an emergency / test run switch. Indoor unit and integral refrigerant pipes shall be purged with dry nitrogen and caped before shipment from the factory. 4.1.2 Fan The indoor unit fan shall be high performance, double inlet, forward curve, direct drive sirocco fan. The fans shall be statically and dynamically balanced and run on a motor with permanently lubricated bearings. The indoor fan shall offer two (2) speeds: Low and High. 4.3 Vane The unit shall have a motorized horizontal vane to automatically direct supply air flow in a vertical and downward direction for uniform air distribution. Vane position may be set in four different angles and in “swing” to provide constant airflow movement. Vane operation is selected from the remote controller. The horizontal vane shall significantly decrease downward air resistance for lower noise levels, and shall close the outlet port when operation is stopped. There shall also be a set of manually adjusted vertical vanes to provide horizontal air direction control. 4.4 Filter Return air shall be filtered by means of an easily removable, two section, washable filter. 4.5 Coil The indoor unit coil shall be of nonferrous construction with pre-coated aluminum strake fins on copper tubing. The multi-angled heat exchanger shall have a modified fin shape that reduces air resistance for a smoother, quieter airflow. All tube joints shall be brazed with PhosCopper or silver alloy. The coils shall be pressure tested at the factory. A condensate pan with drain connections at both ends shall be provided under the coil. An optional condensate pump will be provided with sensor and pick-up mounted in the condensate pan and a float control to prevent overflow. 4.6 Electrical The electrical power of the unit shall be 208 / 230 volts, 1-phase, 60 hertz. The system shall be capable of satisfactory operation within voltage limits of 198 volts to 253 volts. The indoor unit shall be provided with A-Control – a system requiring that the indoor unit to be powered and controlled directly from the outdoor unit using a 14 gauge (AWG) 3-wire connection plus ground providing both primary power and integrated , by-directional, digital control signal without additional connections. The indoor units shall not have any supplemental or “back-up” electrical heating elements. Part 5 Control 5.1 The control system shall consist of two (2) microprocessors, one in each indoor and outdoor unit, interconnected by A-Control. This three (3) conductor 14 ga. AWG wire with Page 3 of 6 Ductless Mini-splits – Hyper Heat PK Rev. 1 ground method shall provide power feed and bi-directional digital control transmission between the outdoor and indoor units. 5.2 The system shall be capable of automatic restart when power is restored after power interruption. The system shall have self-diagnostics ability, including total hours of compressor run time. Diagnostics codes for indoor and outdoor units shall be displayed on the wired controller display panel. 5.3 The microprocessor located in the indoor unit shall have the capability of monitoring return air temperature and indoor coil temperature, receiving and processing commands from the wired controller, providing emergency operation and for controlling the operation of the outdoor unit. 5.4 The indoor unit shall be connected to a deluxe wall mounted wired controller, model PAR-21MAA, to perform input functions necessary to operate the system. The wired controller shall have a large multi-language DOT matrix, liquid crystal display (LCD) presenting contents in eight (8) different languages, including English, French, Chinese, German, Japanese, Spanish, Russian, and Italian. 5.5 There shall be a built-in weekly timer with up to eight pattern settings per day. The controller shall consist of an On/Off button, Increase/Decrease Set Temperature buttons, a Heat / Auto / Cool / Dry / Fan mode selector, a Timer Menu button, a Timer On/Off button, Set Time buttons, a Fan Speed selector, a Vane Position selector, a Louver Swing button, a Test Run button, and a Check Mode button. The controller shall have a built-in temperature sensor. Temperature shall be displayed in either Fahrenheit (°F) or Celsius (°C). Temperature changes shall be by increments of 1°F (1°C) with a range of 67°F to 87°F (19°C to 30°C). 5.6 The wired controller shall display operating conditions such as set temperature, room temperature, pipe temperatures (i.e. liquid, discharge, indoor and outdoor), compressor operating conditions (including running current, frequency, input voltage, On/Off status and operating time), LEV opening pulses, sub cooling and discharge super heat. 5.7 Normal operation of the wired controller shall provide individual system control in which one wired controller and one indoor unit are installed in the same room. Temperature sensing shall be done by a Thermistor mounted in the return air stream of the indoor unit. An alternate temperature sensor shall be located within the wall controller. Selection of the sensor is by switch in the indoor unit. 5.8 The controller shall have the capability of controlling up to a maximum of sixteen indoor units. All units will be in the same mode, with the same set point, fan speed, and all functions. 5.9 Controller shall operate over a maximum developed control cable distance of 1,650 feet (500 meters). 5.10 The control voltage from the wired controller to the indoor unit shall be a digital +/-24 volts, DC signal. The control signal between the indoor and outdoor unit shall be pulse signal 24 volts DC. Up to two wired controllers shall be able to be used to control one unit. 5.11 Control system shall control the continued operation of the air sweep louvers, as well as provide On/Off and mode switching. The controller shall have the capability to provide sequential starting with up to fifty seconds delay. 5.12 A two wire (one pair) twisted, stranded, 18 gauge (AWG), jacketed, control cable shall be used to connect the controller to the indoor unit. Part 6 - Outdoor Units 6.1 The outdoor units shall be compatible with the two different types of indoor units (PKA wall mounted and PLA - four way ceiling cassette). The connected indoor unit must be of the same capacity as the outdoor unit except that the Model PUZ-HA36NHA shall have the option to connect to two indoor units – 18,000 BTU/h capacity (PKA-A18GA or PLA-A18BA type) Page 4 of 6 Ductless Mini-splits – Hyper Heat PK Rev. 1 each, installed within the same confined space, to improve air distribution (total capacity shall be equivalent to outdoor unit). 6.2 The outdoor unit shall be equipped with a control board that interfaces with the indoor unit to perform all necessary operation functions. 6.3 The outdoor unit shall be able to operate with a maximum height difference of 100 feet (30 meters) between indoor and outdoor units. Units shall also have a maximum refrigerant tubing length capability of 254 feet (75 meters) between indoor and outdoor units without the need for line size changes, traps or additional oil. Units shall be pre-charged for a maximum of 100 feet (30 meters) of refrigerant tubing. The outdoor unit shall be completely factory assembled, piped, and wired. Each unit must be test run at the factory. Both refrigerant lines from the outdoor unit to indoor units shall be individually insulated. 6.4 The outdoor unit shall have an Heat Interchanger circuit consisting of: 6.4.1 A heat interchanger circuit for sub-cooling liquid prior to entering the outdoor coil during the heating mode. The interchanger shall be of a copper tube within a tube construction. 6.4.2 The interchanger circuit refrigerant flow shall be controlled by an electronic expansion valve. 6.5 The outdoor unit shall be capable of operating in cooling mode at 0°F (-18°C) ambient temperature without additional low ambient controls (optional wind baffles – two pieces are required). 6.6 The outdoor unit shall have rated performance for heat operation at -13F outdoor ambient temperature without additional low ambient controls 6.7 Outdoor unit shall have a sound rating no higher than 53 dB(A). 6.8 The outdoor unit shall have an accumulator with refrigerant level sensors and controls. 6.9 The outdoor unit shall have a high pressure safety protection, over-current protection and DC bus protection. 6.10 Cabinet 6.10.1 The casing shall be constructed from galvanized steel plate, coated with a finished with an electrostatically applied, thermally fused acrylic or polyester powder coating for corrosion protection and have a munsell 3Y 7.8/1.1 finish. The fan grille shall be of ABS plastic. 6.10.2 Fan Model PUZ-HA30NHA and Model PUZ-HA36NHA shall be furnished with two (2) AC fan motors. The fan motors shall be of aerodynamic design for quiet operation, and the fan motor bearings shall be permanently lubricated. The outdoor unit shall have horizontal discharge airflow. The fan shall be mounted in front of the outdoor coil, pulling air across the coil from the rear and dispelling it through the front. The fan shall be provided with a raised guard to prevent contact with moving parts. 6.10.3 Coil The L shaped condenser coil shall be of copper tubing with flat aluminum fins to reduce debris build up. The coil shall be protected with an integral metal guard. Refrigerant flow from the condenser shall be controlled by means of an electronic linear expansion valve (LEV) metering device. The LEV shall be controlled by a microprocessor activated stepper device. 6.10.4 Compressor The compressor shall be a Mitsubishi Electric, DC scroll compressor with Variable Compressor Speed Inverter Technology. The compressor shall be driven by inverter circuit to control compressor speed. The compressor speed shall dynamically vary capacity to match the zone load for significantly increasing the efficiency of the system which will result in considerable energy savings. To prevent liquid from accumulating in the compressor during the off cycle, a minimal amount of current shall be intermittently applied to the compressor motor windings to Page 5 of 6 Ductless Mini-splits – Hyper Heat PK Rev. 1 maintain enough heat to evaporate the liquid. The compressor shall be mounted to avoid the transmission of vibration. . 6.10.5 The outdoor unit shall be equipped with a properly sized refrigerant accumulator and high pressure safety switch. 6.11 Electrical 6.11.1 The electrical power of the unit shall be 208 / 230 volts, 1-phase, 60 hertz. The unit shall be capable of satisfactory operation within voltage limits of 198 volts to 253 volts. The outdoor unit shall be controlled by the microprocessor located in the indoor unit. 6.11.2 The control signal between the indoor unit and the outdoor unit shall be pulse signal +/24 volts DC. The unit shall have Pulse Amplitude Modulation circuit to utilize 98% of input power supply. Mr. Slim PK 30/36 P-Series wired controller Hyper-heat Guide Specification ©Nov 2008 Mitsubishi Electric / HVAC Page 6 of 6 Ductless Mini-splits – Hyper Heat PK Rev. 1