Index Contents Pages Installation Instructions A) Unit Inspection Indoor Unit and Mounting C) Outdoor Unit location & Mounting D) Refrigeration Piping Guidelines Interconnection Pipes (heat) Guidelines Interconnection Pipes (Cool) G) Sound Pressure Data Field Wiring Guide G) Commissioning of Electrical Wires / Power Cables H) Servicing of the Indoor and Outdoor units...
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Installation Instructions Unit Inspection These instructions are intended as an aid to qualified, licensed service personnel for proper installation, adjustment and operation of the unit. Read these instructions thoroughly before attempting installation or operation. Unpack Unit & Inspect Upon receiving the unit, inspect it for any damage from shipment. Claims for damage, either shipping or concealed, should be filed immediately with the shipping company.
Installation Instructions Horizontal Position Mount unit with the help of MS rod channel for unit support & use 1/8“ to 1/4" thick fire proof resilient gasket between duct, unit, and mounting support. Refer fig-9. Connect the supply air duct to unit supply air opening flange. Use canvas connection between unit & supply air duct to avoid the transmission of vibration to unit.
Installation Instructions Indoor Units • Connect the duct connections to unit supply and return air ducts. • Refer to GA drawing for unit supply and return duct connection sizes and locations. • Use canvas connection between unit & supply air duct to avoid the transmission of vibration to the duct. •...
Installation Instructions REFRIGERANT PIPING Outdoor Unit Suction Line Indoor Unit In Level With ODU Indoor Unit Fig. 11 If indoor unit (YE2EU) is in level with out door unit (YE2CE), pitch suction line towards outdoor unit ½” for every 10 ft length Outdoor Unit Suction Line Indoor Unit Below The ODU...
Installation Instructions FIELD WIRING GUIDE COOL/HEAT PUMP Main Power Supply High Voltage Circuit High Voltage Breaker Terminal Block Low Voltage Terminal Block 24 Volts Control Voltage 24 Volts Control Voltage Low Voltage Terminal Block Main Power Supply High Voltage Circuit High Voltage Breaker Terminal Block...
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Installation Instructions FIELD WIRING GUIDE COOL/HEAT PUMP • Field wiring should be done as per national fire, safety and electrical codes. • Ensure that the voltage should be within +/-10% of rated voltage on unit. As operation of unit at improper voltage may cause unit damage which could affect warranty.
Installation Instructions COMMISIONING OF ELECTRICAL WIRES & POWER CABLES Before installing or servicing unit, turn off main power to system. There may be more than one disconnect / isolator switch Turn off accessory heater power if applicable. Electric shock can cause personal injury. Unit safety devices Internal current and temperature sensitive over load - This Device resets automatically when internal compressor motor temperature drops to a safe level.
Installation Instructions SERVICING OF THE INDOOR AND OUTDOOR UNITS • Remove the all sheet metal screws holding the orifice ring. • Remove the motor mounting assembly bolts. • Slide out complete blower, motor & orifice ring assembly. • To clean the blower housing assembly use a brush, warm water and detergent. •...
G.A. Drawing : Indoor units VERTICAL / HORIZONTAL MOUNTING POSITION YE2EU 072 TO 180 LAYOUT IS SUBJECT TO CHANGE WITHOUT NOTICE. COMMERCIAL DUCTED SPLITS...
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G.A. Drawing : Outdoor units YE2CE 072 SINGLE CIRCUIT UNITS COMMERCIAL DUCTED SPLITS...
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G.A. Drawing : Outdoor units GA DRAWING (SPACE CLEARANCE) YE2CE072 - R22-50HZ / R22-60HZ & R407C-50HZ UNITS COMMERCIAL DUCTED SPLITS...
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G.A. Drawing : Outdoor units GA DRAWING ( SPACE CLEARANCE) YE2CE090-216 - R22-50HZ / R22-60HZ & R407C-50HZ UNITS COMMERCIAL DUCTED SPLITS...
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G.A. Drawing : Outdoor units GA DRAWING ( SPACE CLEARANCE) YE2CE240-300 - R22-50HZ / R22-60HZ & R407C-50HZ UNITS COMMERCIAL DUCTED SPLITS...
Trouble Shooting TROUBLE SHOOTING CHART FOR DUCTABLE SPLIT TYPE AIR-CONDITIONERS If your unit does not operate or cooling enough refer to the Chart below and check before calling a Service Engineer. PROBLEM CAUSE REMEDY Call power company. Compressor and Power failure. Replace fuse or reset circuit breaker.