Facility-Cold Room TECHNICIAN (HVAC)
2600 - 3800 SGDFull-time
Thong Siek Food Industry Pte Ltd
Job Scope (Primary Responsibility)
Main focus:
- Walk-in cold rooms / Freezers
- Blast freezer systems (defrost-critical)
- Chiller systems / cooling tunnels
- Ice room & process cooling
Secondary:
- Aircon systems (including Mitsubishi - basic to intermediate)
Critical Skills ( MANDATORY )
1. Strong Refrigeration Troubleshooting (core requirement)
Candidate must be able to independently diagnose and fix:
- System not reaching temperature
- Intermittent cooling / unstable temperature
- Ice buildup / defrost failure
- High / Low pressure issues
- Refrigerant-related faults
Must be able to understand:
- Refrigeration cycle (practical, not theory only)
- Superheat / basic charging logic
- System behavior under load
Practical:
- Brazing & piping repair
- Leak detection tools
- Can work at height (no height phobia)
2. Compressor & System Fault Diagnosis
Hands-on experience with:
- Reciprocating compressors
- Multi-stage / low-temp systems
Must be able to troubleshoot:
- Compressor not starting
- Frequent tripping (HP/LP/overload)
- Abnormal noise / overheating
- Oil-related issues
3. Electrical & Control Troubleshooting (VERY IMPORTANT)
Must be able to:
- Read basic wiring diagrams
- Diagnose - Contractor/Relay faults, Power supply issues, Sensor faults
- Use multimeter confidently - Voltage, Continuity, Basic fault tracing
4. Controller Handling (e.g. Eliwell / Dixell)
Must be comfortable with controllers:
Required ability:
- Adjust setpoints
- Check alarms
- Identify fault conditions
- Trigger manual defrost - UP key ≥ 5 sec
Practical understanding:
- Controller affects - Compressor, Defrost, Fans
Required : Confident operations + troubleshooting logic
Not required: deep programming
5. Defrost System Understanding (IMPORTANT)
Must understand and troubleshoot:
- Hot gas defrost
- Electric heater defrost
Example system: Timed defrost cycles (e.g. every 4hrs, ~ 23mins)
Must be able to identify:
- Heater failure
- Valve not switching
- Defrost not terminating
Job Requirement:
- Minimum 3-5 years hands-on HVAC / Refrigeration
- Minimum GCE 'O' Level
- Cold room or industrial refrigeration experience is a MUST
- Hardworking & Independent
- A team player
- Must be able to work on Weekends/Public Holidays
*Please DO NOT apply for this role if you only have residential aircon technician experience
Vacancy posted a month ago
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