Installation Instructions
Page 2
... Coil 9 Interconnecting Tubing 10-13 Evacuation Procedure 14 Start-Up and Performance 14 Checking Airflow 14 Checking Refrigerant Charge 15 Electrical Wiring 16 High and Low Pressure Controls (HPC or LPC 18 Field Installed Accessories 18 Service 19 Trouble Shooting 20-22 Trouble Shooting Chart 23 Wiring Diagrams 24-26 CHECKING...
... Coil 9 Interconnecting Tubing 10-13 Evacuation Procedure 14 Start-Up and Performance 14 Checking Airflow 14 Checking Refrigerant Charge 15 Electrical Wiring 16 High and Low Pressure Controls (HPC or LPC 18 Field Installed Accessories 18 Service 19 Trouble Shooting 20-22 Trouble Shooting Chart 23 Wiring Diagrams 24-26 CHECKING...
Installation Instructions
Page 8
...: -Up to 800 PSIG High side -Up to be retrofitted into R-22 condensing units. 8 SPECIFICATION OF R-410A: Application: R-410A is to 250 PSIG Low Side -550 PSIG Low Side Retard Manifold Hoses: -Service Pressure Rating of Transportation 4BA400 or BW400 ! It cannot be made to prevent system contamination. All models are factory...
...: -Up to 800 PSIG High side -Up to be retrofitted into R-22 condensing units. 8 SPECIFICATION OF R-410A: Application: R-410A is to 250 PSIG Low Side -550 PSIG Low Side Retard Manifold Hoses: -Service Pressure Rating of Transportation 4BA400 or BW400 ! It cannot be made to prevent system contamination. All models are factory...
Installation Instructions
Page 9
... POE oils. • Vacuum pumps will not remove moisture from oil. • R-410A systems are to 800 psig high-side and 250 psig low-side with a 550 psig low-side retard. These cylinders should never be mixed in tanks or supply lines, or be kept upright for equipment charging. Test the oil...
... POE oils. • Vacuum pumps will not remove moisture from oil. • R-410A systems are to 800 psig high-side and 250 psig low-side with a 550 psig low-side retard. These cylinders should never be mixed in tanks or supply lines, or be kept upright for equipment charging. Test the oil...
Installation Instructions
Page 14
.... Each ton of cooling requires between indoor load and outdoor unit capacity. Return air grilles must be connected to both the high and low sides of the space. Air in the system causes high condensing temperatures and pressure, resulting in a damaged or failed compressor. These attack... if required. Before analyzing charge, see the instructions on the correct balance between 350 and 450 cubic feet of high humidity problems. Low indoor airflow reduces total capacity, and causes coil icing. The correct air quantity is dependent upon the thoroughness exercised by the contractor. The...
.... Each ton of cooling requires between indoor load and outdoor unit capacity. Return air grilles must be connected to both the high and low sides of the space. Air in the system causes high condensing temperatures and pressure, resulting in a damaged or failed compressor. These attack... if required. Before analyzing charge, see the instructions on the correct balance between 350 and 450 cubic feet of high humidity problems. Low indoor airflow reduces total capacity, and causes coil icing. The correct air quantity is dependent upon the thoroughness exercised by the contractor. The...
Installation Instructions
Page 17
...the wiring diagram for the control circuit of the condensing unit. WARNING THE UNIT MUST BE PERMANENTLY GROUNDED. CONTROL WIRING (See Figure 4) If the low voltage control wiring is required. Use Table 8 to the contactor terminals. DO NOT connect aluminum field wire to size the 24 volt control wiring.... 17 FAILURE TO DO SO CAN CAUSE ELECTRICAL SHOCK RESULTING IN SEVERE PERSONAL INJURY OR DEATH. Low voltage wiring may be run through the insulated bushing provided in the 7/8 hole in conduit with the power supply, Class I insulation is run...
...the wiring diagram for the control circuit of the condensing unit. WARNING THE UNIT MUST BE PERMANENTLY GROUNDED. CONTROL WIRING (See Figure 4) If the low voltage control wiring is required. Use Table 8 to the contactor terminals. DO NOT connect aluminum field wire to size the 24 volt control wiring.... 17 FAILURE TO DO SO CAN CAUSE ELECTRICAL SHOCK RESULTING IN SEVERE PERSONAL INJURY OR DEATH. Low voltage wiring may be run through the insulated bushing provided in the 7/8 hole in conduit with the power supply, Class I insulation is run...
Installation Instructions
Page 18
.... At initial start up or after extended shutdown periods, make sure the heater is energized for system operation below 55°F. HIGH AND LOW PRESSURE CONTROLS (HPC OR LPC) These controls keep the compressor from the compressor shell during long off .) TABLE 9 MAXIMUM SYSTEM CHARGE VALUES...ZP34K5E ZP42K5E ZP51K5E Charge Limit Without Crankcase Heat (1 Phase) 9.6 lbs. 9.6 lbs. 9.6 lbs. 9.6 lbs. 12 lbs. 12 lbs. 12 lbs. 18 The low pressure control (LPC) is a manual reset which opens near 95 PSIG. Both controls are instances when a heater should be added. NOTE: A crankcase heater heater...
.... At initial start up or after extended shutdown periods, make sure the heater is energized for system operation below 55°F. HIGH AND LOW PRESSURE CONTROLS (HPC OR LPC) These controls keep the compressor from the compressor shell during long off .) TABLE 9 MAXIMUM SYSTEM CHARGE VALUES...ZP34K5E ZP42K5E ZP51K5E Charge Limit Without Crankcase Heat (1 Phase) 9.6 lbs. 9.6 lbs. 9.6 lbs. 9.6 lbs. 12 lbs. 12 lbs. 12 lbs. 18 The low pressure control (LPC) is a manual reset which opens near 95 PSIG. Both controls are instances when a heater should be added. NOTE: A crankcase heater heater...
Installation Instructions
Page 19
Low ambient control should be used on start components are available if the homeowner requests a cover for the unit... all standard single phase units up . Two pole contactors are used on some three phase units. 19 LOW AMBIENT CONTROL (LAC) This component senses compressor head pressure and shuts the condenser fan off at lower ambient in the... low voltage control circuit. TIME DELAY CONTROL (TDC) The time delay (TDC) is broken with the scroll compressors used ...
Low ambient control should be used on start components are available if the homeowner requests a cover for the unit... all standard single phase units up . Two pole contactors are used on some three phase units. 19 LOW AMBIENT CONTROL (LAC) This component senses compressor head pressure and shuts the condenser fan off at lower ambient in the... low voltage control circuit. TIME DELAY CONTROL (TDC) The time delay (TDC) is broken with the scroll compressors used ...
Installation Instructions
Page 21
...MECHANICAL CHECKS FLOW CHART Unit Running? High Head Pressure YES Pressure problems? Low Head Pressure Dirty Condenser Coil Low on Charge Inoperative Outdoor Fan Open IPR Valve Overcharge Low Ambient Temperature Recirculation of Condenser Air Inoperative Compressor Valves Non-condensibles Restricted Filter... Metering Device Stuck Closed NO Go to Electrical Checks Flow Chart Low Suction Pressure Dirty Filters Dirty Evaporator Inadequate Airflow Broken Indoor Blower Belt Inoperative Indoor Blower Low on Charge Faulty Metering Device Restriction in System Restricted Filter-drier ...
...MECHANICAL CHECKS FLOW CHART Unit Running? High Head Pressure YES Pressure problems? Low Head Pressure Dirty Condenser Coil Low on Charge Inoperative Outdoor Fan Open IPR Valve Overcharge Low Ambient Temperature Recirculation of Condenser Air Inoperative Compressor Valves Non-condensibles Restricted Filter... Metering Device Stuck Closed NO Go to Electrical Checks Flow Chart Low Suction Pressure Dirty Filters Dirty Evaporator Inadequate Airflow Broken Indoor Blower Belt Inoperative Indoor Blower Low on Charge Faulty Metering Device Restriction in System Restricted Filter-drier ...
Installation Instructions
Page 22
... SUBCOOLING COMPRESSOR AMPS Overcharge High High Low High High Undercharge Low Low High Low Low Liquid Restriction (Drier) Low Low High High Low Low Evaporator Airflow Low Low Low Low Low Dirty Condenser High High Low Low High Low Outside Ambient Temperature Low Low High High Low Inefficient Compressor Low High High High Low TEV Feeler Bulb Charge Lost Low Low High High Low Poorly Insulated Sensing Bulb High High Low Low High Convert the liquid line...
... SUBCOOLING COMPRESSOR AMPS Overcharge High High Low High High Undercharge Low Low High Low Low Liquid Restriction (Drier) Low Low High High Low Low Evaporator Airflow Low Low Low Low Low Dirty Condenser High High Low Low High Low Outside Ambient Temperature Low Low High High Low Inefficient Compressor Low High High High Low TEV Feeler Bulb Charge Lost Low Low High High Low Poorly Insulated Sensing Bulb High High Low Low High Convert the liquid line...
Installation Instructions
Page 23
... Defective contactor • Blown fuses / tripped breaker • Transformer defective • High pressure control open internal overload. • Low voltage condition • Improperly sized unit • Improper indoor airflow • Incorrect refrigerant charge • Air, non-condensibles or ... non-condensibles in system • Flowcheck piston size too large • Defective Compressor valves • Incorrect capillary tubes • Low indoor airflow • Operating below 65°F outdoors • Moisture in system • Excessive load • Defective compressor •...
... Defective contactor • Blown fuses / tripped breaker • Transformer defective • High pressure control open internal overload. • Low voltage condition • Improperly sized unit • Improper indoor airflow • Incorrect refrigerant charge • Air, non-condensibles or ... non-condensibles in system • Flowcheck piston size too large • Defective Compressor valves • Incorrect capillary tubes • Low indoor airflow • Operating below 65°F outdoors • Moisture in system • Excessive load • Defective compressor •...