Table of Contents
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Owner's Manual and Installation Instructions
GES-NIG25OUT
GES-NIG35OUT
GES-NMG25OUT
GES-NMG35OUT
GES-NMG50OUT
GES-NMG70OUT
GES-NJG25OUT
GES-NJG35OUT
GES-NJG50OUT
............................................... ............................................... ........................................... .1
Procedures............................................... ...................................................................7
Recovery............................................... .............................................................10
Indoor/Outdoor Unit Installation Drawings.......................................................... . . . . . . . . 12
Safety Precautions ............................................... ...........................................................................14
Read Before Installation ....................................... ...................................................................... 18
Installation Procedure........................................... ........................................................................ 2 1
Outdoor Unit Troubleshooting............................... ............................................... . . . . . . . . . . . . . . 26
Write the model and serial
numbers here:
Model # _________________________
Serial #
____________________________
Find these numbers on a label on the front of
the base pan behind the front grille.
GEM-NM40OUT M
GEM-NM50OUT M
. .............................................. ...................................................................3
............................................... ..............................................................7
Requirements.......3
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Table of Contents
Related Manuals for GE GES-NMG25OUT
Summarization of Contents
European Regulations Conformity
CE Conformity
Conformity with European provisions like RED, F-GAS, ENERGY.
RoHS Compliance
Fulfillment of directive on Restriction of Hazardous Substances.
WEEE Disposal Requirements
Information on disposal requirements for electrical and electronic products.
WIFI Specifications
Wireless transmission power and operating frequency range.
Refrigerant Information
Refrigerant Type R32
Specifies R32 as the refrigerant type used in the unit.
Refrigerant Charge Details
Details factory refrigerant charge and CO2 equivalent for models.
Handling, Transport, and Storage
Loading and Unloading Requirements
Guidelines for safe handling during loading and unloading.
Transporting Management Requirements
Regulations and safety measures for transporting the unit.
Storage Requirements
Conditions for storing the equipment to prevent refrigerant leakage.
Installation Instructions Overview
Room Area and Refrigerant Charge
Minimum room area requirements and maximum refrigerant charge amounts.
Safety Awareness and Precautions
General Safety Awareness
Operations must follow controlled procedures, area isolation, and site inspection.
Fire Safety and Control
Ensure fire extinguisher is nearby, no fire source or high temperature.
Inspection Procedures
Unpacking Inspection
Check indoor/outdoor units for nitrogen seal and refrigerant leaks.
Installation Environment Check
Ensure room area meets specifications and avoid enclosed spaces for outdoor units.
Installation Safety Principles
Maintain ventilation, avoid open fire, use anti-static measures, ensure accessibility.
Electrical Safety Requirements
Electrical Wiring Precautions
Notice ambient conditions, use copper wire, ensure earthing, correct wiring order.
Circuit Protection and Wiring
Use dedicated circuits with leakage protectors and correct wire sizing.
Installer Qualification and Unit Installation
Installer Qualification Requirements
Installer must hold relevant qualification certificate as per national laws.
Indoor Unit Installation
Fix wall panel, layout pipes, charge nitrogen for leak detection.
Outdoor Unit Installation
Fix unit securely, avoid fire sources, place leak detection equipment.
Post-Installation Checks and Test Run
Post-installation Inspection Items
Checks for firmness, leakage, insulation, drainage, voltage, wiring, earthing, pipe length.
Test Run Procedure
Procedures for powering on, selecting modes, and checking operation.
Relocation and Maintenance Procedures
Relocation Process
Steps for relocating the unit, including inspection, recovery, cleaning, and disassembly.
Maintenance Precautions
Avoid on-site welding, radical disassembly; consult dealer for compressor issues.
Maintenance Personnel Qualifications
Personnel must hold certificates for safe refrigerant disposal.
Maintenance Environment and Site Requirements
Maintenance Environment Inspection
Ensure no refrigerant leaks, room meets specs, continuous ventilation, no open fire.
Maintenance Site Requirements
Ensure ventilation, flat surface, divided zones, exhaust fans, leak detection equipment.
Leak Detection Methods
Leak Detection Methods
Use electronic detectors, avoid open fire, calibrate equipment, use appropriate fluids.
Maintenance Safety and Item Requirements
Maintenance Safety Principles
Ensure ventilation, no open fire or phones, use anti-static measures, handle leaks immediately.
Maintenance Requirements
Clean with nitrogen, vacuumize, use OFN, avoid cross-contamination, keep cylinders upright, earth system.
Electrical Component Maintenance
Inspect for leaks, do not disassemble safety parts, power off before opening covers.
Intrinsically Safe Element Maintenance
Perform leak detection, check earthing, use specified parts.
Refrigerant Handling and Disposal
Removal and Vacuumizing
Clear refrigerant, purify pipes, vacuumize, purge with OFN, cut/weld pipes.
Welding Procedures
Ensure ventilation, no refrigerant in unit, use pipe cutter, not welding gun.
Refrigerant Charging Procedures
Avoid cross-contamination, shorten pipelines, keep cylinders upright, earth system, label system.
Refrigerant Storage and Scrapping
Store cylinders properly, analyze recovered refrigerant, follow scrapping procedures.
Unit Installation Drawings
Piping Arrangement and Parts
Illustrates piping arrangement and lists optional parts like tape, saddles, drain hose.
Outdoor Unit Fixing
Instructions on fixing the outdoor unit to concrete, walls, or rooftops.
Outdoor Unit Dimensions
Provides detailed dimensions (W, D, H, L1, L2, L3) for various models.
Comprehensive Safety Precautions
General Operation Warnings
Incorrect operations can cause severe injury, death, or machine damage.
Key Safety Precautions
Follow installation and operation guidelines to prevent hazards like fire, shock, or falling.
Unit Installation and Handling Safety
Professional Installation and Placement
Unit must be installed professionally on a stable surface.
Electrical and Refrigerant Safety
Use specified cables, licensed electrician, secure cover, use R32 refrigerant.
Handling Hazards
Avoid touching fins, ensure ventilation for leaks, do not defeat safety features.
Refrigerant and Pre-Installation Safety
R32 Refrigerant Handling
Do not use existing piping with chlorine, keep pipes clean, use R32 specific tools.
Pre-Installation Environment Safety
Do not install near flammable gas, avoid unusual environments, consider noise in hospitals.
Installation, Electrical, and Test Run Safety
Installation and Electrical Work Safety
Ground unit properly, ensure wires are not taut, install explosion-proof breaker.
Pre-Test Run Safety Precautions
Do not operate with wet hands, avoid touching pipes, ensure panels are in place.
Pre-Installation Checks and Tools
Installation Checklist
Verify refrigerant type, check symptoms, read safety precautions, note gas leak hazards.
Necessary Tools and Materials
Lists tools for R32, R22/R407C, and those not to be used with R32.
Piping Specifications and Machining
Piping Materials and Thickness
Use deoxidized copper pipes with specified radial thickness for R32.
Flare Machining Dimensions
Details flare machining dimensions for R32 vs R22 for increased air tightness.
Flare Nut Specifications
Type-2 flare nuts are used for R32 for increased strength.
Air Tightness, Refrigerant Charging, and Leak Remedies
Air Tightness Test Procedure
Test using nitrogen pressure, check for leaks using detectors.
Refrigerant Charging Method
Charge R32 in liquid state, check cylinder type, add refrigerant from liquid side.
Refrigerant Leak Remedies
Additional refrigerant can be charged if leaks occur.
Refrigerant Characteristics
R32 composition changes if removed in vapor phase.
Installation Procedure - Outdoor Unit
Accessories and Installation Location
Lists accessories and selection criteria for installation place.
Outdoor Unit Mounting
Fix unit on foundation with anchor bolts, ensure drainage and level.
Outdoor Unit Dimensions
Provides detailed dimensions (W, D, H, L1, L2, L3) for various models.
Installation Procedure - Piping
Piping Size Requirements
Specifies liquid and gas pipe sizes and flare connection angles.
Pipe Connection and Fastening
Connect pipes carefully, bend with radius, connect gas side first, fasten with torque.
Installation Procedure - Air Tightness Test
Air Tightness Test Steps
Test using nitrogen pressure, check for leaks by listening, touching, or soap water.
Installation Procedure - Vacuumizing
Vacuum Pump Method
Steps for vacuumizing using a pump, connecting manifold, checking gauge, and inspecting for leaks.
Installation Procedure - Electrical Wiring
Electrical Wiring Safety and Selection
Warnings, precautions, wire size selection, and circuit protection.
Wiring Procedure
Steps for connecting wires to the terminal block and routing them.
Outdoor Unit Troubleshooting
Unit Startup and Pre-Test Run
Unit starts instantly; confirm power is on for crankcase heater.
Test Run Checks
Run unit, check pressures, and temperature difference.
Troubleshooting Common Faults
Analyzes common issues like Eeprom failure, IPM failure, communication errors, and sensor failures.
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