Technical Specifications

Performance Features

Puron Advance (R-454B) refrigerant meets and exceeds EPA’s new Low GWP requirements

High-efficiency scroll compressors on lag circuit

Variable speed compressor on lead circuit

Direct drive plenum fans

TXV (thermostatic expansion valve) refrigerant metering device for each circuit

DX cooling operation range from 55 F to 115 F ambient (Air Cooled or ASHP) 

DX cooling operation range from 40 F to 120 F entering fluid temperature (WSHP) 

DX heating operation range from 17 F to 55 F ambient (ASHP)

DX heating operation range from 30 F to 90 F entering fluid temperature (WSHP)

24-v control circuit

Rubber fan vibration isolators

2-in. double wall construction with an R-13 rating

Sloped, insulated, stainless steel condensate pan

Filter rank assembly with optional 2-in. or 4-in. pre-filter

Direct drive motors

High-efficiency 1 HP and larger motors meet EPACT (Energy Policy Act)

Two-position outside air damper (100% outdoor air)

Easy to use factory installed EQT display 

Factory installed DOAS Microprocessor Controller 

Occupancy schedule 

Service diagnostics 

Alarms and alert history 

Short-cycle compressor protection 

Supports communications with BACnet™ MS/TP

Reliability Features

Dual electrically and mechanically independent refrigeration circuits (unit sizes 40-140)

Crankcase heaters

Compressor protection includes high and low pressure switches

Phase/voltage monitor

Liquid line filter driers

Circuit breaker protection for all power components

Pre-painted, galvanized steel cabinet with baked enamel finish which meets ASTM (American Society of Testing and Materials) B117 salt spray resistance

Water regulating valves for operation at low entering condenser water temperature (water source units)

Water flow proving switch (water source units)

Tested in accordance with UL Standard 60335-2-40

Listed by ETL and ETL, Canada

Maintenance Features

Large hinged service access doors

Easy to access filter rack

Installation Features

Single point electrical service entry through unit bottom or side

Rigging openings in base rail

Standard Warranty

One-year parts

Factory-Installed Options

Multiple cabinet sizes 

High Efficiency Fans: Optional ECM, Spring vibration isolation on ODP or TEFC fan motor assemblies, Backward incline or airfoil direct drive supply and exhaust fans, Optional duct pressure control, Optional airflow monitoring station control

Gas Heat assembly: Natural gas or propane, Stainless steel heat exchanger, Induced draft combustion, Up to four stage control, Up to 10:1 turndown, modulating control, Up to 1600 MBH input, Up to 160˚F temperature rise

Electric heat: Up to four stage control, Available SCR control, Up to 150 kw

Hot water heat: Modulating control

Energy conservation wheel options: Multiple wheel sizes, Wheel VFD (variable frequency drive) for defrost control, Wheel bypass

Electrical options: Convenience outlet, Non-Fused disconnect switch

Reheat options: Modulating hot gas reheat, Lead or dual circuit hot gas reheat, Dual circuit reheat system with liquid subcooling reheat on all circuits, Standard or high-efficiency condenser (air-cooled units)

DX options: Standard or high-efficiency condenser (air-cooled units), Copper or Cupronickel COAX outdoor water coil (40-70 ton WSHP units), SST BPHE outdoor water coil (80-140 ton WSHP units)

Filter options: 2-in. MERV 8, 4-in. MERV 8, 4-in. MERV 11, 4-in. MERV 13

Harsh environment protection with 10,000 hour salt spray rated coating

Field-Installed Accessories

Roof curbs

ZS sensors

Replacement filter kits