Course Module Overview: Chiller Electrical Systems
This course is a follow up to the basic electrical training and provides specialized, hands-on training for wiring and building chiller electrical panels and units. It emphasizes precise mechanical execution, electrical safety standards, and modern component integration to ensure long-term system reliability.
Module 1: Cable Preparation & Wire Management
Focuses on the precise physical handling and preparation of specialized chiller cabling before routing or termination.
SB-CHI-0006: Tape Heater Cable Preparation
Core Focus: Correct strip-back techniques, layered insulation removal, and moisture-proofing for crankcase or freeze-protection tape heaters.
Key Skills: Working with multi-layered, semi-conductive, or braided cables without damaging internal heating elements. Applying heat-shrink end seals and cold-applied termination kits.
SB-CHI-0098: Crimping and Loom Build
Core Focus: Building high-density electrical wire harnesses (looms) for complex chiller panels.
Key Skills: Selecting proper crimp profiles and terminals (insulated vs. uninsulated ferrules, ring terminals), tool calibration, pull-testing, and running structured looms using cable ties, routing tracks, and anti-chafing sleeves to resist compressor vibrations.
Module 2: Heavy Power Distribution & Connections
Covers high-current delivery systems typical of large-scale chiller compressors and main incoming power feeds.
SB-CHI-0009: Termination Bolts on Busbars
Core Focus: Securing high-amperage power links safely within the main power distribution section.
Key Skills: Surface preparation for copper busbars, applying the, correct stack-up ordering (bolt, flat washer, busbar, lug, flat washer, Belleville/spring washer, nut), and preventing galvanic corrosion.
Module 3: Advanced Component Integration
Focuses on smart, energy-efficient control devices specific to modern chiller designs.
SB-CHI-0017: EC Fans (Electronically Commutated)
Core Focus: Wiring and interfacing smart EC condenser fan motors.
Key Skills: Separating dual-source paths (high-voltage AC power lines vs. low-voltage DC/PWM/Modbus control wiring), proper shielding and grounding techniques to prevent Electromagnetic Interference (EMI), and setting up fault relay loops.
Module 4: Quality Control & Mechanical Compliance
The final verification layer ensuring the panel meets industrial safety standards before testing and commissioning.
SB-CHI-0106: Electrical Components Torque Settings & Labels
Core Focus: The mechanical-electrical interface and panel legibility.
Key Skills: Utilizing calibrated torque wrenches to match precise manufacturer specifications (preventing hot-spots or stripped threads on breakers, contactors, and terminals), implementing torque-seal marking for quality audits, and applying compliant device tags, wire markers, and safety warning labels.
Training Objective: Upon completion, technicians will be capable of taking a raw chiller engineering drawing, preparing the specialized low-and-high voltage circuitry, building a vibration-resistant loom, and safely fastening power elements up to precise mechanical tolerances.

Electrical Precision training (2 days)