RTU Install & Start-up

Core Fundamentals

• RTU components and architecture
        Fans, compressors, economizers, gas heat sections, coils, controls,      sensors, dampers.
• Electrical fundamentals
        Wiring diagrams, control circuits, high‑voltage vs. low‑voltage,      contactors, relays, safeties.
• Refrigeration cycle review
        Superheat, subcooling, metering devices, common failure modes.

Installation Essentials

• Site preparation and rigging basics
        Roof curbs, leveling, vibration isolation, safe lifting practices.
• Ductwork and airflow considerations
        Static pressure, airflow measurement, balancing, common installation      errors.
• Gas piping and venting (if      applicable)
        Code requirements, leak testing, combustion air.
  RTU / Split Systems Start up procedures

Start‑Up Procedures (The Heart of the Class)

· Pre‑start inspection
Power checks, wiring verification, refrigerant line inspection, filter condition, belt tension.

· Electrical start‑up
Phase rotation, voltage/amp checks, verifying control logic.

· Refrigeration start‑up
Charging procedures, verifying superheat/subcooling, checking for restrictions.

· Airflow verification
Fan speed adjustments, static pressure measurement, CFM confirmation.

· Economizer setup
Calibration, damper operation, sensor verification, integration with BAS.

· Gas heat start‑up
Combustion analysis, manifold pressure, safety checks.

Testing, Commissioning & Documentation

· Functional testing
Cooling, heating, economizer, safeties, alarms.

· Commissioning reports
What to record, how to document readings, how to communicate issues.

· Warranty and manufacturer requirements
What must be documented to avoid voiding coverage.

CANCELLATIONS NOT MADE WITHIN 48 HOURS OF THE CLASS WILL BE CHARGED $50. ROBIN 216-525-8236