Workplace Safety, Environment and Customer Service
Safety on site
PPE includes safety shoes, gloves, goggles and a helmet for work at height. Isolate and lock out before electrical work, then verify dead with a tester. Secure ladders and use a harness above the specified height. When brazing, keep an extinguisher at hand, shield combustible material and maintain a fire watch after the flame is off. Store refrigerant cylinders upright, below 50 °C, with the valve cap on, never in a car boot in the sun.
Environment
Recover, recycle and reclaim; never vent. Return used oil and e-waste - PCBs, capacitors - to authorised handlers. Respect the phase-out of ozone-depleting refrigerants and prefer low-GWP alternatives where the equipment permits. Log refrigerant use.
Customer service
Arrive at the agreed time, show ID, explain the fault in plain language, quote before extra work, protect floors and furniture, test with the customer present, demonstrate the set point and filter cleaning, hand over a written invoice showing charge weight and readings, and respect privacy. Handle complaints by listening, acknowledging, fixing and following up.
Worked example
A customer asks you to top up his old R-22 unit 'like last year'. The correct response is to explain that the leak must be located and repaired, that R-22 supply is restricted under the phase-out, that no true drop-in replacement exists, and to offer a leak test or replacement in writing.
Traps
Venting a little gas 'because it is only a top-up'; giving a verbal estimate and later arguing about it; and leaving old capacitors or sharps on site.