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Installation Guide – E6 Mirado Refrigeration Unit

Version: 1.0  |  Audience: Field Technicians & Installers  |  Estimated Time: 4 hours

Keywords: Mirado, E6, Commercial Refrigeration, Install, Setup, Commissioning

Purpose: Step-by-step instructions for safely installing and commissioning the E6 Mirado commercial refrigeration unit at a customer site (e.g., grocery/retail back rooms and service areas). Use with the related Incident Type to ensure tasks, parts, and labor are captured consistently.

Contents

  1. Safety & Compliance
  2. Prerequisites & Site Readiness
  3. Tools & Materials
  4. Installation Steps
  5. Commissioning & Final Checks
  6. Troubleshooting Tips
  7. FAQ
  8. Completion Checklist & Sign-off

1) Safety & Compliance

  • Electrical lockout/tagout (LOTO) required before any wiring work.
  • EPA 608 compliance and local regulations for refrigerant handling/recovery.
  • PPE: cut-resistant gloves, safety glasses, and insulated tools.
  • Use only manufacturer-approved wiring harnesses and fittings; maintain proper equipment grounding.

2) Prerequisites & Site Readiness

  • Power: Dedicated circuit (typ. 220–240V, 60Hz, per nameplate). Breaker off.
  • Clearances: Minimum 6" rear and side clearance; level floor, non-obstructed airflow.
  • Environment: Ambient 50–90°F (10–32°C), away from direct heat sources.
  • Staging: Confirm delivery path and doorway widths; protect floors as needed.

3) Tools & Materials

  • Appliance dolly/rollers, level, tape measure
  • Insulated screwdriver set, nut drivers, torque wrench (per spec)
  • Approved wiring harness, wire connectors, conduit/clamps
  • Leak detector (electronic or soap solution)
  • Vacuum pump & micron gauge (if lines are not pre-charged)
  • Refrigerant (per nameplate), manifold gauges

4) Installation Steps

  1. Uncrate & Inspect
    • Remove packaging; inspect for transit damage. Report issues before proceeding.
    • Verify model/serial match the Work Order. Record serial number.
  2. Position the Unit
    • Move unit to final location using rollers/dolly. Avoid tipping beyond manufacturer limits.
    • Level front-to-back and side-to-side (±1/8"). Recheck clearances and door swing.
  3. Electrical Connection
    • Confirm breaker is OFF. Perform LOTO.
    • Connect per wiring diagram/nameplate: dedicated 220–240V, 60Hz; secure ground.
    • Torque terminations to spec; secure strain relief; restore power only after Section 4.5.
  4. Refrigerant Lines
    • If using pre-charged lines: connect per manufacturer instructions; open service valves.
    • If not pre-charged: pull vacuum to ≤500 microns and hold; charge to spec by weight/subcool.
    • Leak check all joints (soap/electronic). Remedy any leaks before commissioning.
  5. Drain & Condensate Management (if applicable)
    • Connect drain line with proper slope and trap per local code; verify no kinks/restrictions.
  6. Controls & Sensors
    • Verify thermostat/controller wiring; secure probes per manual.
    • Inspect door gaskets, hinges, and closures for seal integrity.

5) Commissioning & Final Checks

  1. Power Up
    • Restore breaker power. Confirm control display illuminates; listen for compressor/fan start.
  2. Initial Settings
    • Set target temperature to 38°F (3.3°C) unless customer specifies otherwise.
    • Verify evap/condenser fans run; check airflow paths are clear.
  3. Stabilization
    • Allow 20–30 minutes; confirm pull-down. Measure and record supply/return air temps.
    • Check superheat/subcool (if accessible) and compare to spec. Adjust charge only if required.
  4. Functional Tests
    • Door seal test (paper strip method); verify no alarms/fault codes.
    • Check for abnormal noise/vibration; confirm condensate drainage.
  5. Documentation
    • Record serial #, final setpoint, ambient temp, stabilized cabinet temp, and any adjustments.
    • Capture photos (nameplate, wiring, final placement) and attach to Work Order.

6) Troubleshooting Tips

  • No power/display: Verify breaker, line voltage, fuses, and ground.
  • Won’t cool: Confirm condenser fan operation, coil cleanliness, charge level, and door seals.
  • High head pressure: Check airflow/clearances; verify condenser coil cleanliness and ambient temp.
  • Ice on evap: Inspect defrost schedule, door seal, and airflow obstructions.
  • Water leakage: Verify drain connection, trap, and slope; clear blockages.

7) FAQ

Q: What’s the default setpoint?
A: 38°F (3.3°C) for most perishables unless the customer specifies a different target.

Q: Do I need to log refrigerant usage?
A: Yes. Record type and quantity per EPA and company policy in the Work Order notes.

8) Completion Checklist & Sign-off

  • Unit level; clearances verified; door swing unobstructed.
  • Electrical connections torqued; ground verified; covers reinstalled.
  • Lines connected; vacuum/charge complete; leak check passed.
  • Setpoint configured; stabilized temp recorded; no active alarms.
  • Photos and commissioning data attached to Work Order.
  • Customer walkthrough completed; signature captured in the mobile app.

Note: Always follow the latest manufacturer documentation and local codes. If specifications differ from this guide, the manufacturer documentation takes precedence.

Keywords: Refrigerator, Mirado, E6, Installation
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