Delta T Systems Chillers offer variable-speed fan and compressor motors to maximize energy savings while meeting the desired setpoint. The new Chiller & Dry Cooler Combo Unit takes this a step further by capitalizing on low ambient temperatures in the wintertime to achieve the desired setpoint without drawing power for the compressor at all.
- Hermetically Sealed Variable Speed Compressor
- Microchannel Coils
- Brazed Plate Evaporator
- Electronic Expansion Valve
- Industry 4.0 ready with touch screen
What Sets Delta T Systems’ Chiller & Dry Cooler Combo Units Apart?
Variable Speed Compressor
The compressors used in all Delta T Systems Chiller & Dry Cooler Combo Units have a variable-speed, brushless DC motor. This allows the unit to operate anywhere between 10% and 100% of its rated capacity. When less cooling is required, the compressor will adjust to prevent overcooling or wasting energy. This alone results in an energy savings of 30% to 50% of the initial investment.
State of the Art Control
Delta T Systems has developed a proprietary control program that allows the chiller to utilize the variable speed technology, along with numerous sensors, to operate the chiller at its most efficient point. These advanced controls make Delta T’s chillers industry 4.0 ready, and even have optional remote connectivity.
Microchannel Coils
An air-cooled Delta T Systems Chiller & Dry Cooler Combo Unit uses microchannel coils. The use of small channels provide a larger amount of surface area for heat transfer. The more area available, the more efficient the heat exchanger will be on the chiller side, and the more heat transfer will occur between the process fluid and the ambient air on the dry cooler side.
Brazed Plate Evaporator
The evaporator in all Delta T Systems chillers is a copper-brazed plate heat exchanger. It’s non-ferrous, meaning it will not rust over time.
Electronic Expansion Valve
The electronic expansion valve is controlled by an electronic actuator that provides for extremely small graduations. This allows the valve to meter the refrigerant to the exact amount required for the cooling load.
Combo Unit Energy Savings
Delta T Systems Chillers offer variable-speed fan and compressor motors to maximize energy savings while meeting the desired setpoint. The new Chiller & Dry Cooler Combo Unit takes this a step further by capitalizing on low ambient temperatures in the wintertime to achieve the desired setpoint without drawing power for the compressor at all. The controller intelligently calculates when to use the dry cooler coils and variable speed fans versus when to use the compressor to achieve maximum energy savings year-round.
Standard 4.3” Touch Screen
This is the standard 4.3“ touch screen. On the home page, the unit status, pump flow, pump pressure, pump status, compressor capacity, compressor status, time and date, dewpoint, alarm notifications, set point, and outlet temperature can easily be monitored.
Energy Savings
Major energy savings are realized by combining the Variable Speed Chiller technology with the Dry Cooler ambient cooling benefits. A sophisticated control algorithm enables these systems and their components to work together for minimum energy consumption and maximum cost savings.
Warranty
Delta T Chiller & Dry Cooler Combo Units are warranted to be dry of defects in material and workmanship for one year after purchase date. Also, expendable parts are covered for 90 days.
Standard Features
- Microprocessor-Based PID Controller
- Hermetically Sealed Variable Speed Compressor
- Cleanable Inlet Air Filters
- Electronic Expansion Valve
- Refrigerant Suction and Discharge Pressure Transducers
- Unit Capacity Readout
- Digital Tank Level Readout
- To Process Pressure Readout
- Low Flow Indication
- Digital Flow Readout
- Compressor Speed Readout
- Finger Safe Electrical Components
- Modbus RTU Communication
- Refrigerant Suction and Discharge Temperature Sensors
- Refrigerant Liquid Line Temperature Sensors (20-60T units)
- Stainless Steel Brazed Plate Evaporator
- Non-ferrous Chilled Water Piping
- Cleanable Evaporator Inlet Strainer and individual Strainers on each Dry Cooler coil
- Automatic Water Bypass Solenoid
- Variable Speed EC Fan Motors
- Microchannel Aluminum Cooling Coils
- Coil Isolation Valves on Multi-coil Units
- Lift off, removable panels
- Digital Pump Pressure Readout
- Dirty Evaporator Strainer Indication
- Compressor Protection Alarms
- High and Low Temperature Alarms
- Tank Level Alarms
- Faulty Probe Alarms
- Warnings and Adaptive Control
- Remote Alarm Output
- Remote Start/Stop Input
- 24 V Controls
- Phase Monitor
- Motor Protection
- Fused Transformer Protection on both Primary & Secondary Sides
- NEMA 12 (Indoor) and NEMA 4 (Outdoor) Electrical Enclosure & Wiring in Conformance with NEC
Optional Features
- UL508A Rated Enclosure
- Auto water make-up
- Alarm horn
- Alarm strobe
- Anti-drain back kit
- Communication via BACnet or SNMP
- Electro fin coated condenser and Dry Cooler Coils for Harsh Environments
- Ability to control to a remote temperature sensor
- 7” Touch Screen Display
- Supply and return valves
- Outdoor Coastal Package
- No Pump, No Tank Configuration
- Pump, No Tank Configuration
- Ship loose pump, no tank
- Dust Air Filters
- Heavy Duty Air Filters
- Stainless Steel Air Filters
- Integrated heater for heating and cooling applications
- Standby pump (All 20-30 ton units)
- Automatic Zero Load Bypass
- 50-micron full flow filter
- Remote display
- VNC enabled display
- Remote access to control
- UL 508a electrical panel
- Ability to control a separate process
- Medium or high pressure fans for ducting applications
- VFD for pumps
- DTS Smart Connect for remote monitoring
- High operating temperature range up to 180 degrees Fahrenheit
5 To 15 Ton Units
| Model | Nominal Capacity1 (BTUH) | Minimum Load (BTUH) | Chiller Condenser Air Flow (CFM) | Fluid Cooler Coil Air Flow (CFM) | Reservoir (Gallons) | Minimum Circuit Ampacity2 | Dimensions (in) Height 1, Height 23, Width, Depth | Shipping Weight (with crate) (lbs) | Chiller IPLV (EER) | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| VSPAFC-005 | 60,000 | 10,228 | 3,317 | 6,000 | 25 | 28.91 | 66 | 69 | 34 | 68 | 1,355 | 22.9 |
| VSPAFC-008 | 90,000 | 17,299 | 4,541 | 8,500 | 25 | 34.97 | 76.5 | 79.5 | 34 | 68 | 1,405 | 24.9 |
| VSPAFC-010 | 120,000 | 22,020 | 6,569 | 10,000 | 40 | 42.08 | 76.5 | 34 | 34 | 80 | 1,570 | 24.4 |
| VSPAFC-015 | 180,000 | 22,020 | 6,569 | 13,000 | 40 | 51.97 | 94.5 | - | 34 | 80 | 1,670 | 25.3 |
| (1) Chiller capacity based on 50°F LWT, 95°F ambient (2) MCA based on standard pump option. Will change with different pumps. (3) Height with optional horn and strobe. |
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20 To 30 Ton Units
| Model | Nominal Capacity1 (BTUH) | Minimum Load (BTUH) | Chiller Condenser Air Flow (CFM) | Fluid Cooler Coil Air Flow (CFM) | Reservoir (Gallons) | Minimum Circuit Ampacity2 | Dimensions (in) Height 1, Height 23, Width, Depth | Shipping Weight (with crate) (lbs) | Chiller IPLV (EER) | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| VSPAFC-020 | 240,000 | 22,020 | 13,138 | 18,000 | 70 | 73.9 | 76.5 | 79.5 | 34 | 160 | 2,000 | 24.4 |
| VSPAFC-025 | 300,000 | 26,164 | 19,452 | 23,000 | 70 | 85.42 | 94.5 | - | 34 | 160 | 2,100 | 25.6 |
| VSPAFC-030 | 360,000 | 29,188 | 19,452 | 26,000 | 70 | 92.17 | 94.5 | - | 34 | 160 | 2,200 | 25.3 |
| (1) Chiller capacity based on 50°F LWT, 95°F ambient. (2) MCA based on standard pump option. Will change with different pumps. (3) Height with optional horn and strobe. |
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