Preventative maintenance · Applied systems
Strategic maintenance for critical HVAC Systems
Start with a recorded baseline. Add trend comparisons and alarm review with Proactive or Max CARE to help prioritize the next repair.
Is performance stable or slipping?
Each tier includes everything to its left. Most sites with critical assets choose Proactive CARE.
Inside a CARE maintenance record
A running chiller can still need attention.
This operating record shows chilled water leaving at 42.3 °F. The inspection also identifies a flow safety check that did not pass.
- Chilled water entering
- 50.9 °F
- Chilled water leaving
- 42.3 °F
- Chilled Water ΔT
- 8.6 °F · calculated
Condenser-water flow safety check: not passed
The technician recorded “No” for this shutdown-function check and recommended replacing a water-side transducer.
Recommended next step: Have the service team confirm the affected device, complete the approved corrective work and document the safety retest.
Repair completion and a passing retest are not documented in this excerpt.
Condenser-water pressure-drop check
The report notes that this measurement was unavailable through the control display and test ports. It also identifies a water-side transducer needing replacement.
Next: Confirm the device and measurement access, then document the follow-up readings.
Chilled-water flow safety check
This separate shutdown-function check was recorded OK at the inspection.
Meaning: A specific documented check, not an all-clear for the entire chiller.
More than readings: a clear next step. Keep the finding, recommended work and retest together so your team can follow the item through to completion.
The problem
Four visits a year is a schedule, not a strategy.
Essential CARE records a baseline. Proactive and Max CARE add repeat readings, trend comparisons and alarm review. The report explains what changed and which work deserves attention first.
The evidence
What trending found on a plant already under contract
One central plant, November 2025 — covered at the time by another mechanical contractor’s standard PM agreement.
Captured and saved instead of erased.
The survey that followed had proof to work from.
One unit’s cry for help. The fix was a controls change.
The tiers
Three tiers. Pick your outcome.
| What you get | Essential | Proactive | Max CARE |
|---|---|---|---|
| Reliability review, operator training, response guidance | ✓ | ✓ | ✓ |
| Full yearly PM, quarterly inspections, and a baseline report | ✓ | ✓ | ✓ |
| Trend comparison across visits: what changed, and whether it matters | – | ✓ | ✓ |
| Alarm-history review with priorities ranked by risk | – | ✓ | ✓ |
| Training + Outage Playbook and Critical Spares | – | – | ✓ |
| Remote Technical Support throughout the agreement | – | – | ✓ |
| Priority response expectations, in writing | – | – | ✓ |
| Best fit when | stable assets, clean records | aging assets, recurring alarms | downtime is unacceptable |
Each tier includes everything to its left.
The Trend Pledge
If a coming failure was visible in our trend data and we failed to flag it in your quarterly report, your next quarter of PM is free.
The Response Pledge
We answer your call within four business hours and have a technician on site within one business day, backed by the playbook and your on-shelf spares.
Not sure which tier? Get prescribed, don’t guess.
The free HVAC Health Assessment ends with a written PM prescription matched to your equipment’s age, setup and importance. Sometimes the honest answer is a lower tier than you expected. An audit that only ever prescribes the expensive option is a brochure with a clipboard.
Capability
Applied systems experience
Air-cooled, water-cooled and modular chillers; heat pump systems in 2-pipe and 4-pipe configurations; VRF and VRV systems; large RTUs, VAV equipment and humidifiers; controls-integrated and multi-circuit applied systems; cooling towers, pumps and VFDs.
Brands we work on: Aermec, Carrier, ClimaCool, Daikin Applied, Jetson, York.
Start with the free audit. Get your tier prescribed.
The assessment leads to a review meeting with a written PM prescription. Then you decide.
Request an HVAC Health Assessment
A senior technician reviews one critical HVAC asset. No cost for qualified facilities in the greater Bay Area.
Before scheduling: CCMS confirms site and equipment fit, then arranges customer/credit onboarding. This request does not book a visit or authorize paid work. Please do not include credit, financial, or patient records here.
