Инструкция на Rooftops (крышные кондиционеры) Lennox серии SMART LINEА

Текст инструкции

1. Стр. 1 INSTALLATION

   INSTRUCTIONS Litho U.S.A. E2004 WARNING Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal injury or loss of life. Installation and service must be performed by a qualified installer, service agency or the gas supplier LHA090 (7-1/2 TON) LHA102…

2. Стр. 2 LHA090, 102, 120, & 150 DIMENSIONS

   OPTIONAL OUTDOOR AIR HOOD (Factory or Field Installed) OUTDOOR COIL INTAKE AIR OUTDOOR COIL FAN (2) AA 5-1/2 (140) OUTDOOR COIL INTAKE AIR INDOOR COIL 4 (102) 4 (102) 28 (711) 28 (711) 20 (508) EE BOTTOM POWER ENTRY 5 x 8 inches (127 x 203 mm) CENTER OF GRAVITY FF DD BLOWER MOTOR OUTDOOR COILS…

3. Стр. 3 LHA090, 102, 120 & 150 PARTS ARRANGEMENT

   INDOOR COIL FILTERS (FOUR − 18 X 24 X 2") OUTDOOR FANS ECONOMIZER (OPTIONAL) BLOWER BLOWER MOTOR OUTDOOR COILS CONDENSATE DRAIN COMPRESSORS Shipping and Packing List Package 1 of 1 contains: 1− Assembled unit Check unit for shipping damage. Receiving party should contact last carrier immediately if…

4. Стр. 4 National Fire Protection Association

   1 Batterymarch Park P.O. Box 9101 Quincy, MA 02269−9101 The LHA unit is CSA International certified as a heat pump with cooling and with or without auxiliary electric heat for non−residential use only at the clearances to combustible materials as listed on the unit nameplate and in figure 1.…

5. Стр. 5 Duct Connection

   Condensate Drains All exterior ducts, joints, and openings in roof or building walls must be insulated and weatherproofed with flashing and sealing compounds in accordance with applicable codes. Any duct passing through an unconditioned space must be insulated. Make drain connection to the 1" N.P.T.…

6. Стр. 6 Factory−Installed Options

   A−Economizer The A56 EM1 economizer board controls economizer operation and provides potentiometers to control minimum damper position and enthalpy control adjustments. The A56 EM1 economizer board is positioned on the A55 M1 main control board in the unit control box. See the Integrated Modular…

7. Стр. 7 Electrical Connections

   POWER SUPPLY Do not apply power or close disconnect switch until installation is complete. Refer to start−up directions. Refer closely to unit wiring diagram. Figure 7 shows a typical unit wiring diagram. Refer to unit nameplate for minimum circuit ampacity and maximum fuse size. 1− 230,460,575 volt…

8. Стр. 8 TYPICAL LHA UNIT WIRING SCHEMATIC

   FIGURE 7 Page 7

9. Стр. 9 Cooling Start−Up

   IMPORTANT−Crankcase heaters must be energized for 24 hours before attempting to start compressor. Set thermostat so there is no demand to prevent compressors from cycling. Apply power to unit. NOTE − These units must not be used as a construction heater" at any time during any phase of construction.…

10. Стр. 10 TABLE 1

    LHA090H NORMAL OPERATING PRESSURES Outdoor Coil Entering Air Temp 65_F 75_F 85_F 95_F 105_F 115_F CIRCUIT 1 Dis. +10 psig CIRCUIT 2 Suct. +5 Dis. +10 Suct. +5 psig psig psig Outdoor Fan Cycles at 65_F TABLE 2 LHA102H NORMAL OPERATING PRESSURES Outdoor Coil Entering Air Temp 65_F 75_F 85_F 95_F 105_F…

11. Стр. 11 5− Low Ambient Relay (K58, K118)

    During heating operation, relays prevent S11 and S84 fan cycling. 6− Freezestats (S49, S50) Switches de−energize compressors when indoor coil temperature falls below 29_F (−2_C) to prevent coil freeze−up. Switches reset when indoor coil temperature reaches 58_F (15_C). 7− Defrost Switches (S6, S9)…

12. Стр. 12 C−Determining Unit CFM

    PULLEY ALIGNMENT 1− The following measurements must be made with a dry indoor coil and with air filters in place. Run blower without a cooling demand. Measure the indoor blower shaft RPM. ALIGNED 2− With all access panels in place, measure static pressure external to unit (from supply to return).…

13. Стр. 13 TABLE 7

    BASE UNIT BLOWER PERFORMANCE BLOWER TABLE INCLUDES RESISTANCE FOR 102 BASE UNIT ONLY WITH DRY INDOOR COIL & AIR FILTERS IN PLACE. FOR ALL UNITS ADD: 1 − Wet indoor coil air resistance of selected unit. 2 − Any factory installed options air resistance (heat section, economizer, etc.) 3 − Any field…

14. Стр. 14 F−Field−Furnished Blower Drives

15. Стр. 15 Service

    C−Indoor Coil The unit should be inspected once a year by a qualified service technician. Inspect and clean coil at beginning of each cooling and heating season. Clean using mild detergent or commercial coil cleanser. Flush coil and condensate drain with water taking care not to get insulation…

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