Refrigerant - Units operate with chlorine-free, ozone friendly, R-410A

Outdoor Coil Fan - Direct drive fan(s) moves large volumes of air uniformly through entire condenser coil(s) for high refrigerant cooling capacity

Upward discharge of air reduces operating sound levels and prevents damage to lawns, shrubs and walkways

Fan motors are totally enclosed, overload protected and equipped with a rain shield

Fan service access is accomplished by removal of fan guard(s) or removal of access panel

Copper Tube/Enhanced Fin Coil - Units are equipped with a wrap-around "U" shaped coil (072-090-120 models) or two "L" shaped coils

Coils are constructed of precisely spaced ripple-edge aluminum fins machine fitted to seamless copper tubes

Lanced fins provide maximum exposure of fin surface to air stream resulting in excellent heat transfer

Fins equipped with collars that grip tubing for maximum contact area

Flared shoulder tubing connections and machine brazed silver soldering provide tight, leak-Proof joints

Long life copper tubing is corrosion-resistant and easy to field service

Thoroughly factory tested under high pressure to ensure leak-Proof construction

Completely accessible for cleaning

High Pressure Switch - Shuts off unit if abnormal operating conditions cause discharge pressure to rise above setting

Protects the compressor from excessive condensing pressure

Manual reset

Loss of Charge Switch - Shuts off unit if liquid line pressure falls below setting

Provides loss of charge and freeze-up protection

Automatic reset

Hi-Capacity Drier - Drier traps moisture or dirt that could contaminate the refrigerant system

Refrigerant Lines and Service Valves - Suction and liquid lines are located on corner of unit cabinet and are made with sweat connections

Fully serviceable suction and liquid line service valves provide complete service access to refrigerant system

Suction valve can be fully shut off, while liquid valve can be front seated to manage refrigerant charge while servicing system Accessible outside of unit cabinet

Compressor - Compressor features high efficiency with uniform suction flow, constant discharge flow and high volumetric efficiency and quiet operation

Compressor consists of two involute spiral scrolls matched together to generate a series of crescent shaped gas pockets between them

During compression, one scroll remains stationary while the other scroll orbits around it

Gas is drawn into the outer pocket the pocket is sealed as the scroll rotates

Crankcase Heater - Crankcase heater(s) prevents migration of liquid refrigerant into compressor(s) and ensures proper compressor lubrication

Cabinet - Heavy gauge, pre-painted steel cabinet provides superior rust and corrosion protection

Removable panels allow access for unit servicing

Heavy Duty steel base channels raise the unit off of mounting surface away from damaging moisture Unit lifting holes and forklift slots furnished in base rails

Outdoor Coil Fans-One Outdoor Fan-ELS072 and ELS090, Two Outdoor Fans-ELS120 and ELS150, Four Outdoor Fans-ELS180 and ELS240, Direct drive fans moves large volumes of air uniformly through entire condenser coil for high refrigerant cooling capacity, Totally enclosed fan motors, Overload protected, Rain shield furnished

Copper Tube/Enhanced Fin Coils, Wrap-around U Shaped Coil-ELS072-090-120 models, Two L Shaped Coils-ELS150-180-240 models, Ripple-edge aluminum fins, Seamless copper tube construction, Lanced fins for maximum fin surface exposure, Fin collars grip tubing for maximum contact area, Flared shoulder tubing connections, Machine brazed silver soldering, Factory tested under high pressure, Completely accessible for cleaning

CC High Pressure Switch-Protects the system from high pressure conditions, Manual reset

Loss of Charge Switch-Shuts off unit if liquid line pressure falls below setting, Provides loss of charge and freeze-up protection

Automatic reset Hi-Capacity Driers-Traps moisture or dirt

Refrigerant Lines and Service Valves-Suction and liquid lines located on corner of unit, Sweat connections, See dimension drawings, Fully serviceable suction and liquid line service valves provide complete service access to refrigerant system, Suction valve can be fully Shut-Off, while liquid valve can be front seated to manage refrigerant charge while servicing system, Accessible outside of unit cabinet

SCROLL COMPRESSORS-One Two-Stage Compressor-ELS072S4S, ELS090S4S and ELS120S4S models, Two-Single-Stage Compressors-ELS120S4D, ELS150S4D, ELS180S4D and ELS240S4D, High efficiency with uniform suction flow, Constant discharge flow, high volumetric efficiency and quiet operation, Low gas pulses during compression reduces operational sound levels, Compressor motor is internally protected from excessive current and temperature, Muffler in discharge line reduces operating sound levels, Compressor is installed in the unit on resilient rubber mounts for vibration free operation

CABINET-Heavy-gauge, pre-painted steel cabinet, Removable panels for unit servicing, Heavy duty steel base rails raise the unit off of mounting surface, Unit lifting holes and forklift slots furnished in base rails, See dimension drawings

Control Box-Control box located in separate compartment in unit cabinet, All controls are pre-wired at the factory, Control box is large enough for field installed DDC or other field supplied control modules

Heating System-Aluminized steel inshot burners, direct spark ignition, electronic flame sensor, combustion air inducer, redundant automatic single or dual stage gas valve with manual shut-off

Heat Exchanger-Tubular construction, aluminized steel, life cycle tested

Stainless Steel Heat Exchanger is required if mixed air temperature is below 45 Deg F

Electronic Pilot Ignition-Electronic spark igniter provides positive direct ignition of burners on each operating cycle

The system permits main gas valve to stay open only when the burners are proven to be lit

Should a loss of flame occur the gas valve closes, shutting off the gas to the burners Ignition module has LED to indicate status and aid in troubleshooting

Watchguard circuit on module automatically resets ignition controls after one hour of continuous thermostat demand after unit lockout, eliminating nuisance service calls

Ignition control is factory installed in the controls section

Limit Controls-Heat limit controls protect heat exchanger and other components from overheating

Safety Switches-Flame roll-out switch, flame sensor and combustion air inducer proving switch protect system operation

Single Speed Scroll Compressor-Scroll compressors for high performance, reliability and quiet operation

Resiliently mounted on rubber grommets for quiet operation

Compressor Crankcase Heater-Protects against refrigerant migration that can occur during low ambient operation

Thermal Expansion Valve-Assures optimal performance throughout the application range

Removable element head

Filter/Drier-High capacity filter/drier protects the system from dirt and moisture

High Pressure Switch-Protects the compressor from overload conditions such as dirty condenser coils, blocked refrigerant flow or loss of outdoor fan operation

Freezestat-Protects the evaporator coil from damaging ice build-up due to conditions such as low/no air flow or low refrigerant charge

Eco-Last Coil System-Condenser coil features lightweight, all aluminum brazed fin construction

Outdoor Coil Fan Motor-Thermal overload protected, totally enclosed, permanently lubricated sleeve (024, 030, 036 and 048 models) or ball bearings (060, 072, 074 and 090 models), shaft up, wire basket mount

Outdoor Coil Fan-PVC coated fan guard furnished

Construction-Heavy Gauge steel panels and full perimeter heavy gauge galvanized steel base rail provides structural integrity for transportation, handling and installation

Base rails have rigging holes Three sides of the base rail have fork slots

Raised edges around duct and power entry openings in the bottom of the unit provide additional protection against water entering the building

Power/Gas Entry-Electrical and gas lines can be brought through the unit base or through horizontal access knock- outs

Exterior Panels-Constructed of heavy gauge, galvanized steel with a two-layer enamel Painted finish

Insulation

Access Panels

Hinged Access Panels

Heating System - Aluminized steel inshot burners, direct spark ignition, electronic flame sensor, combustion air inducer, redundant automatic single or dual stage gas valve with manual shut-off

Heat Exchanger - Tubular construction, aluminized steel, life cycle tested

Stainless Steel Heat Exchanger is required if mixed air temperature is below 45 Deg F

Electronic Pilot Ignition - Electronic spark igniter provides positive direct ignition of burners on each operating cycle

The system permits main gas valve to stay open only when the burners are proven to be lit

Should a loss of flame occur the gas valve closes, shutting off the gas to the burners Ignition module has LED to indicate status and aid in troubleshooting

Watchguard circuit on module automatically resets ignition controls after one hour of continuous thermostat demand after unit lockout, eliminating nuisance service calls

Ignition control is factory installed in the controls section

Limit Controls - Heat limit controls protect heat exchanger and other components from overheating

Safety Switches - Flame roll-out switch, flame sensor and combustion air inducer proving switch protect system operation

Single Speed Scroll Compressor - Scroll compressors for high performance, reliability and quiet operation

Resiliently mounted on rubber grommets for quiet operation

Compressor Crankcase Heater - Protects against refrigerant migration that can occur during low ambient operation

Thermal Expansion Valve - Assures optimal performance throughout the application range

Removable element head

Filter/Drier - High capacity filter/drier protects the system from dirt and moisture

High Pressure Switch - Protects the compressor from overload conditions such as dirty condenser coils, blocked refrigerant flow or loss of outdoor fan operation

Freezestat - Protects the evaporator coil from damaging ice build-up due to conditions such as low/no air flow or low refrigerant charge

Eco-Last Coil System - Condenser coil features lightweight, all aluminum brazed fin construction

Outdoor Coil Fan Motor - Thermal overload protected, totally enclosed, permanently lubricated sleeve (024, 030, 036 and 048 models) or ball bearings (060, 072, 074 and 090 models), shaft up, wire basket mount

Outdoor Coil Fan - PVC coated fan guard furnished

Construction - Heavy Gauge steel panels and full perimeter heavy gauge galvanized steel base rail provides structural integrity for transportation, handling and installation

Base rails have rigging holes Three sides of the base rail have fork slots

Raised edges around duct and power entry openings in the bottom of the unit provide additional protection against water entering the building

Power/Gas Entry - Electrical and gas lines can be brought through the unit base or through horizontal access knock- outs

Exterior Panels - Constructed of heavy gauge, galvanized steel with a two-layer enamel Painted finish

Insulation

Access Panels

Hinged Access Panels

Heating System - Aluminized steel inshot burners, direct spark ignition, electronic flame sensor, combustion air inducer, redundant automatic single or dual stage gas valve with manual shut-off

Heat Exchanger - Tubular construction, aluminized steel, life cycle tested

Stainless Steel Heat Exchanger is required if mixed air temperature is below 45 Deg F

Electronic Pilot Ignition - Electronic spark igniter provides positive direct ignition of burners on each operating cycle

The system permits main gas valve to stay open only when the burners are proven to be lit

Should a loss of flame occur the gas valve closes, shutting off the gas to the burners Ignition module has LED to indicate status and aid in troubleshooting

Watchguard circuit on module automatically resets ignition controls after one hour of continuous thermostat demand after unit lockout, eliminating nuisance service calls

Ignition control is factory installed in the controls section

Limit Controls - Heat limit controls protect heat exchanger and other components from overheating

Safety Switches - Flame roll-out switch, flame sensor and combustion air inducer proving switch protect system operation

Single Speed Scroll Compressor - Scroll compressors for high performance, reliability and quiet operation

Resiliently mounted on rubber grommets for quiet operation

Compressor Crankcase Heater - Protects against refrigerant migration that can occur during low ambient operation

Thermal Expansion Valve - Assures optimal performance throughout the application range

Removable element head

Filter/Drier - High capacity filter/drier protects the system from dirt and moisture

High Pressure Switch - Protects the compressor from overload conditions such as dirty condenser coils, blocked refrigerant flow or loss of outdoor fan operation

Freezestat - Protects the evaporator coil from damaging ice build-up due to conditions such as low/no air flow or low refrigerant charge

Eco-Last Coil System - Condenser coil features lightweight, all aluminum brazed fin construction

Outdoor Coil Fan Motor - Thermal overload protected, totally enclosed, permanently lubricated sleeve (024, 030, 036 and 048 models) or ball bearings (060, 072, 074 and 090 models), shaft up, wire basket mount

Outdoor Coil Fan - PVC coated fan guard furnished

Construction - Heavy Gauge steel panels and full perimeter heavy gauge galvanized steel base rail provides structural integrity for transportation, handling and installation

Base rails have rigging holes Three sides of the base rail have fork slots

Raised edges around duct and power entry openings in the bottom of the unit provide additional protection against water entering the building

Power/Gas Entry - Electrical and gas lines can be brought through the unit base or through horizontal access knock- outs

Exterior Panels - Constructed of heavy gauge, galvanized steel with a two-layer enamel Painted finish

Insulation

Access Panels

Hinged Access Panels

Heating System - Aluminized steel inshot burners, direct spark ignition, electronic flame sensor, combustion air inducer, redundant automatic single or dual stage gas valve with manual shut-off

Heat Exchanger - Tubular construction, aluminized steel, life cycle tested

Stainless Steel Heat Exchanger is required if mixed air temperature is below 45 Deg F

Electronic Pilot Ignition - Electronic spark igniter provides positive direct ignition of burners on each operating cycle

The system permits main gas valve to stay open only when the burners are proven to be lit

Should a loss of flame occur the gas valve closes, shutting off the gas to the burners Ignition module has LED to indicate status and aid in troubleshooting

Watchguard circuit on module automatically resets ignition controls after one hour of continuous thermostat demand after unit lockout, eliminating nuisance service calls

Ignition control is factory installed in the controls section

Limit Controls - Heat limit controls protect heat exchanger and other components from overheating

Safety Switches - Flame roll-out switch, flame sensor and combustion air inducer proving switch protect system operation

Single Speed Scroll Compressor - Scroll compressors for high performance, reliability and quiet operation

Resiliently mounted on rubber grommets for quiet operation

Compressor Crankcase Heater - Protects against refrigerant migration that can occur during low ambient operation

Thermal Expansion Valve - Assures optimal performance throughout the application range

Removable element head

Filter/Drier - High capacity filter/drier protects the system from dirt and moisture

High Pressure Switch - Protects the compressor from overload conditions such as dirty condenser coils, blocked refrigerant flow or loss of outdoor fan operation

Freezestat - Protects the evaporator coil from damaging ice build-up due to conditions such as low/no air flow or low refrigerant charge

Eco-Last Coil System - Condenser coil features lightweight, all aluminum brazed fin construction

Outdoor Coil Fan Motor - Thermal overload protected, totally enclosed, permanently lubricated sleeve (024, 030, 036 and 048 models) or ball bearings (060, 072, 074 and 090 models), shaft up, wire basket mount

Outdoor Coil Fan - PVC coated fan guard furnished

Construction - Heavy Gauge steel panels and full perimeter heavy gauge galvanized steel base rail provides structural integrity for transportation, handling and installation

Base rails have rigging holes Three sides of the base rail have fork slots

Raised edges around duct and power entry openings in the bottom of the unit provide additional protection against water entering the building

Power/Gas Entry - Electrical and gas lines can be brought through the unit base or through horizontal access knock- outs

Exterior Panels - Constructed of heavy gauge, galvanized steel with a two-layer enamel Painted finish

Insulation

Access Panels

Hinged Access Panels

Heating System - Aluminized steel inshot burners, direct spark ignition, electronic flame sensor, combustion air inducer, redundant automatic single or dual stage gas valve with manual shut-off

Heat Exchanger - Tubular construction, aluminized steel, life cycle tested

Stainless Steel Heat Exchanger is required if mixed air temperature is below 45 Deg F

Electronic Pilot Ignition - Electronic spark igniter provides positive direct ignition of burners on each operating cycle

The system permits main gas valve to stay open only when the burners are proven to be lit

Should a loss of flame occur the gas valve closes, shutting off the gas to the burners Ignition module has LED to indicate status and aid in troubleshooting

Watchguard circuit on module automatically resets ignition controls after one hour of continuous thermostat demand after unit lockout, eliminating nuisance service calls

Ignition control is factory installed in the controls section

Limit Controls - Heat limit controls protect heat exchanger and other components from overheating

Safety Switches - Flame roll-out switch, flame sensor and combustion air inducer proving switch protect system operation

Single Speed Scroll Compressor - Scroll compressors for high performance, reliability and quiet operation

Resiliently mounted on rubber grommets for quiet operation

Compressor Crankcase Heater - Protects against refrigerant migration that can occur during low ambient operation

Thermal Expansion Valve - Assures optimal performance throughout the application range

Removable element head

Filter/Drier - High capacity filter/drier protects the system from dirt and moisture

High Pressure Switch - Protects the compressor from overload conditions such as dirty condenser coils, blocked refrigerant flow or loss of outdoor fan operation

Freezestat - Protects the evaporator coil from damaging ice build-up due to conditions such as low/no air flow or low refrigerant charge

Eco-Last Coil System - Condenser coil features lightweight, all aluminum brazed fin construction

Outdoor Coil Fan Motor - Thermal overload protected, totally enclosed, permanently lubricated sleeve (024, 030, 036 and 048 models) or ball bearings (060, 072, 074 and 090 models), shaft up, wire basket mount

Outdoor Coil Fan - PVC coated fan guard furnished

Construction - Heavy Gauge steel panels and full perimeter heavy gauge galvanized steel base rail provides structural integrity for transportation, handling and installation

Base rails have rigging holes Three sides of the base rail have fork slots

Raised edges around duct and power entry openings in the bottom of the unit provide additional protection against water entering the building

Power/Gas Entry - Electrical and gas lines can be brought through the unit base or through horizontal access knock- outs

Exterior Panels - Constructed of heavy gauge, galvanized steel with a two-layer enamel Painted finish

Insulation

Access Panels

Hinged Access Panels

Heating System-Aluminized steel inshot burners, direct spark ignition, electronic flame sensor, combustion air inducer, redundant automatic single or dual stage gas valve with manual shut-off

Heat Exchanger-Tubular construction, aluminized steel, life cycle tested

Stainless Steel Heat Exchanger is required if mixed air temperature is below 45 Deg F

Electronic Pilot Ignition-Electronic spark igniter provides positive direct ignition of burners on each operating cycle

The system permits main gas valve to stay open only when the burners are proven to be lit

Should a loss of flame occur the gas valve closes, shutting off the gas to the burners Ignition module has LED to indicate status and aid in troubleshooting

Watchguard circuit on module automatically resets ignition controls after one hour of continuous thermostat demand after unit lockout, eliminating nuisance service calls

Ignition control is factory installed in the controls section

Limit Controls-Heat limit controls protect heat exchanger and other components from overheating

Safety Switches-Flame roll-out switch, flame sensor and combustion air inducer proving switch protect system operation

Single Speed Scroll Compressor-Scroll compressors for high performance, reliability and quiet operation

Resiliently mounted on rubber grommets for quiet operation

Compressor Crankcase Heater-Protects against refrigerant migration that can occur during low ambient operation

Thermal Expansion Valve-Assures optimal performance throughout the application range

Removable element head

Filter/Drier-High capacity filter/drier protects the system from dirt and moisture

High Pressure Switch-Protects the compressor from overload conditions such as dirty condenser coils, blocked refrigerant flow or loss of outdoor fan operation

Freezestat-Protects the evaporator coil from damaging ice build-up due to conditions such as low/no air flow or low refrigerant charge

Eco-Last Coil System-Condenser coil features lightweight, all aluminum brazed fin construction

Outdoor Coil Fan Motor-Thermal overload protected, totally enclosed, permanently lubricated sleeve (024, 030, 036 and 048 models) or ball bearings (060, 072, 074 and 090 models), shaft up, wire basket mount

Outdoor Coil Fan-PVC coated fan guard furnished

Construction-Heavy Gauge steel panels and full perimeter heavy gauge galvanized steel base rail provides structural integrity for transportation, handling and installation

Base rails have rigging holes Three sides of the base rail have fork slots

Raised edges around duct and power entry openings in the bottom of the unit provide additional protection against water entering the building

Power/Gas Entry-Electrical and gas lines can be brought through the unit base or through horizontal access knock- outs

Exterior Panels-Constructed of heavy gauge, galvanized steel with a two-layer enamel Painted finish

Insulation

Access Panels

Hinged Access Panels