Chiller Service for Building HVAC & Medical Equipment
Reliable chilled-water systems are critical for comfort, patient safety, and sensitive equipment.
Parus HVAC Services specializes in service, diagnostics, and repair of chillers and chilled-water plants for commercial buildings and medical facilities in Los Angeles and Ventura Counties.
Whether you have a comfort cooling chiller or a dedicated medical or process chiller, we can help you stabilize operation, reduce alarms, and keep your system running safely.
What We Work On
We service a wide range of chillers and chilled-water equipment used in building HVAC and medical/process applications:
- Air-cooled chillers (scroll and screw)
- Water-cooled chillers
- Comfort cooling chillers for offices and mixed-use buildings
- Chilled-water coils in air handlers
- Medical and process chillers (MRI, CT, lab and clean-room cooling)
- Primary/secondary chilled-water pumps
- Cooling towers and condenser-water systems
- Chiller and plant controls, safeties, and sensors
Common Chiller Problems We Solve
If your chiller plant is unstable or your building is always “almost” comfortable, you’re likely seeing one or more of these issues:
- Low ΔT across the evaporator or coils
- Poor cooling under load, especially on hot days
- Nuisance trips and random alarms
- Frequent short cycling of compressors
- High condenser pressure and high head alarms
- Fouled evaporator or condenser, poor heat transfer
- Flow issues (air in the system, low flow, failed flow switches)
- Sensor drift causing wrong temperatures or false alarms
- Unstable chilled-water or condenser-water temperatures
- Medical or process chiller not holding tight temperature tolerances
How We Troubleshoot & Repair Chillers
Our goal is to stabilize your system first, then restore efficiency and reliability without unnecessary part changes.
1. Diagnose the Whole System
We don’t just reset alarms. We look at the entire chilled-water system:
- Verify operating conditions and setpoints
- Check pumps, strainers, and flow switches
- Measure entering/leaving water temperatures and ΔT
- Review alarms, trends, and control sequences
2. Stabilize and Protect Equipment
We focus on stabilizing operation to protect your equipment and building:
- Correct low flow or air-bound circuits
- Address sensor and control issues
- Clean strainers and inspect heat exchangers
- Verify safeties and lockout logic
3. Optimize for Your Building
After the chiller is stable, we look for realistic improvements:
- Improve ΔT and coil performance where possible
- Reduce short cycling and nuisance alarms
- Adjust control sequences to match your actual load
- Coordinate chiller operation with air handlers and rooftop units
Why Parus HVAC Services
- Focus on complex commercial, medical, and process HVAC systems
- Hands-on field experience with chillers, chilled-water plants, VRF, and air handlers
- Practical approach — we explain options in clear, non-technical language
- Respect for your operations: we coordinate work around tenants, staff, and patients
- Owner-led service — you work directly with a technician who cares about long-term reliability
Who We Help
Our chiller services are a good fit if you manage or operate:
- Medical facilities (imaging centers, surgery centers, clinics)
- Office buildings and mixed-use properties
- Light industrial and laboratory spaces
- Schools and universities
- Property management portfolios with multiple sites
Service Area
Based in Agoura Hills, we provide chiller and building HVAC service across:
- Agoura Hills, Westlake Village, Thousand Oaks
- Calabasas, Woodland Hills, and nearby areas
- Malibu and coastal properties
- Selected locations across Los Angeles and Ventura Counties
Need Help With a Chiller or Chilled-Water System?
If you’re dealing with constant alarms, unstable temperatures, or ongoing comfort complaints, we can help you get your chiller plant under control.