Инструкция на Тепловые насосы Lennox серии HP40

Текст инструкции

1. Стр. 1

   2000 Lennox Industries Inc. Dallas, Texas, USA INSTALLATION INSTRUCTIONS HP40 Heat Pump Units HEAT PUMP UNITS 1−1/2 through 5 ton 504,538M 06/04 Supersedes 11/02 Litho U.S.A. Table of Contents HP40 Heat Pump Unit HP40 heat pumps use R407C which is an ozone friendly HFC refrigerant. This unit must be…

2. Стр. 2 Unit Dimensions − mm

   INLET 111 AIR 111 HP40 111 INLET INLET AIR AIR OPTIONAL STAND-OFF KIT (Field−installed 4 required) COMPRESSOR COIL DRAIN OUTLETS (Around perimeter of base) VAPOR LINE CONNECTION INLET LIQUID LINE CONNECTION AIR 111 162 TOP VIEW TOP VIEW BASE SECTION C C DISCHARGE OUTDOOR COIL FAN AIR COMPRESSOR B A…

3. Стр. 3 Setting the Unit

   Slab Mounting (See figure 2) Heat pump units operate under a wide range of weather conditions; therefore, several factors must be considered when positioning the outdoor unit. The unit must be positioned to give adequate clearances for sufficient airflow and servicing. Maintain a minimum clearance…

4. Стр. 4 Electrical

   Wiring must conform with current local codes. An application diagram is included in this instruction and in the indoor unit instructions. Refer to the unit rating plate, located on the control box cover, for minimum circuit ampacity and maximum fuse size. 1 − Provide line voltage power supply to the…

5. Стр. 5 Plumbing

   Flushing Existing Line Set and Indoor Coil Field refrigerant piping consists of liquid and vapor lines from the heat pump (sweat connections) to the indoor evaporator coil. Use Lennox L15 (sweat connection) series line sets as shown in table 1 or use field-fabricated refrigerant lines. Refer to…

6. Стр. 6 the low pressure switches to ensure complete refrigerant evacuation.) When low side system pressures

   reach 0 psig, close the suction line valve. Disconnect all power to the existing outdoor unit. Refer to gauges after shutdown to confirm that the valves are not allowing refrigerant to flow back into the low side of the system. Disconnect the liquid and vapor lines from the existing outdoor unit.…

7. Стр. 7 HP40 COOLING CYCLE (SHOWING MANIFOLD GAUGE CONNECTIONS)

   OUTDOOR UNIT DEFROST THERMOSTAT DISTRIBUTOR REVERSING VALVE EXPANSION/CHECK VALVE LOW PRESSURE HIGH PRESSURE BIFLOW FILTER / DRIER OUTDOOR COIL INTERNAL COMPRESSOR LIMIT INDOOR UNIT MUFFLER GAUGE MANIFOLD TO R407C DRUM SUCTION SERVICE PORT LIQUID LINE SERVICE PORT VAPOR LINE VALVE COMPRESSOR INDOOR…

8. Стр. 8 Vapor Line (Ball−Type) Service Valve −− 5−Ton Units

   IMPORTANT Service valves are closed to the heat pump unit and open to line set connections. Do not open until refrigerant lines have been leak tested and evacuated. All precautions should be exercised in keeping the system free from dirt, moisture and air. Accessing the Schrader Port: 1 − Remove…

9. Стр. 9 gen cylinder with the pressure regulator set to 150

   psig (1034 kPa) and purge the hose. Open the manifold gauge valves to break the vacuum in the system. Close the manifold gauge valves. System Evacuation WARNING Unit contains a NITROGEN holding charge. The holding charge must be purged and the system must be evacuated prior to charging with R407C.…

10. Стр. 10 7 − Recheck the unit voltage while the unit is running

    The power must be within the range shown on the unit nameplate. Check the amperage draw of the unit. Refer to the unit nameplate for approximate running amps. the liquid line pressure to a range of 1379 to 1724 kPa. To do this, block off the outdoor coil with cardboard or a plastic sheet. BLOCKING…

11. Стр. 11 TABLE 3

    R407C Saturated Liquid Temperature and Pressure Chart Use this chart for subcooling only, not superheat. Liquid Line Pressure Saturated Liquid Temperature °C Liquid Line Pressure R407C Psig (kPa) R22 Psig (kPa) 15 116 (799) 102 (703) 16 118 (813) 16 Saturated Liquid Temperature °C R407C Psig (kPa)…

12. Стр. 12 system should be left in the emergency heat mode for at

    least six hours to allow the crankcase heater sufficient time to prevent compressor from slugging. System Operation Filter Drier The unit is equipped with a biflow filter drier. See figure 6. If the filter needs to be replaced, order another of the same design. Thermostat Operation Some heat pump…

13. Стр. 13 Defrost Control Timing Pins

    Maintenance Each timing pin selection provides a different accumulated compressor run time period during one thermostat run cycle. This time period must occur before a defrost cycle is initiated. The defrost interval can be adjusted to 30 (T1), 60 (T2), or 90 (T3) minutes. See figure 10. The defrost…

14. Стр. 14 Start−Up and Performance Check List

    Job Name Job No. Date Job Location City State Installer City State Serial No. Service Technician Unit Model No. Nameplate Voltage Minimum Circuit Ampacity Amps: Supply Maximum Overcurrent Protection Size Outdoor Fan Compressor Electrical Connections Tight? Indoor Filter Clean? Supply Voltage (Unit…

15. Стр. 16 Lennox Industries

    P.O. Box 174, Westgate Interchange, Northampton NN5 5AG Telephone: 01604 591159 Facsimile: 01604 587536 Page 16

Схемы, таблицы и рисунки — в просмотре документа выше. Клик по номеру страницы открывает её в просмотре.