1-805-484-2992
Quotes - Engineering - SalesOverview
When one process needs two fluid temperatures at the same moment, Advantage solves it at the chiller. The dual-zone OACS central chillers carry the Advantage MZC multizone controller: one outdoor frame, two refrigerant circuits, a zone board for each circuit, and two chilled-fluid loops that each hold their own setpoint between 20°F and 70°F.
Twelve dual-zone models, OACS-10D through OACS-150D, are built this way. Compressor staging is independent per zone, so a colder loop on mold cooling and a warmer loop on hydraulic oil coolers each get the capacity their own load calls for, without one borrowing from the other.
Zones that run hot are a different job. Each heated zone on a mold or die takes its own Advantage temperature control unit - water service to 250°F or 300°F, Regal hot oil to 500°F - with its own controller, pump and setpoint. Tell us how many zones the process has, the temperature and flow at each, and which are chilled and which are heated, and we'll lay out the combination.
- Two independently controlled chilled loops from one dual-zone OACS frame
- MZC multizone controller with a zone board and compressor staging per circuit
- Heated zones: one single-zone TCU per setpoint, water or hot oil
Is It Really Two Zones?
A second zone earns its place only when two setpoints have to be held together on the same process. Two molds that happen to share a floor are two single-zone jobs, and so are two loops that never run at the same hour. Where both loops do run concurrently, a dual-zone Advantage chiller puts them on one pad with one power feed and one makeup-water line.
The trade is service exposure: on a dual-zone unit both loops live in one cabinet, while separate units can be isolated and worked on one at a time. Give us both loops' temperatures, flows and duty cycles, not just the combined tonnage, and we'll say which way the numbers point.
Send Us
- Number of zones, and which ones run at the same time
- Setpoint and flow rate for each zone
- Chilled or heated, and water or oil, per zone
- Heat load on each zone, in tons or kW
Where Multi-Zone Control Works
DUAL-ZONE CHILLER VS. SEPARATE UNITS
| Factor | Dual-Zone OACS (MZC) | Separate Single-Zone Units |
|---|---|---|
| Setpoints | Two chilled loops, 20°F to 70°F | One per unit - chilled, or heated to 500°F with a TCU |
| Controls | One MZC controller, a zone board per circuit | One controller on each unit |
| Footprint | One outdoor frame | One frame per zone |
| Best fit | Two chilled loops that run at the same time | Heated zones, or loops that run at different times |
The zone count comes from the setpoints a process must hold together, not from the number of machines on the floor.
Call and talk it through with an engineer: 1-805-484-2992.
