INST
ALLER'S
INSTRUCTION
INST
ALLER'S
INSTRUCTION
P19 OF 44
P20 OF 44
1) Mounting Indoor & Outdoor
Units and Running
Piping/Wiring
Ruler (Not Shown)
Stud-Finder
Dry-Wall Saw
Electric Drill
3" Hole Saw
Drill Extension
Hammer Drill and Bit (Not Shown)
Measuring Tape
Level
Flash Light
Screw Driver (Phillps and Flat)
Hammer
Knife
Scissors
Goggled Glass
Mask
Gloves
Ladder
2) Refrigeration Related Work
3) Electrical Related Installation
Wire Cutter
Wire Stripper
Sharp Plier
Cable Ties
Black Tape for Electrical Use
lectrical Meter
Clamp Meter (Not Shown)
Manifold
Infra Thermometer (Not Shown)
4) Trial Running Units and
Inspection
RECOMMENDED TOOLS FOR INSTALLATION
INDOOR UNIT-MAJOR COMPONENTS
IMPORTANT NOTES FOR UNIT OPERATION ABMIENT & SIZING
Air Filter
Front Panel or Faceplate
Air Inlets
Auto-Directional Louvers
(Up and Down)
Singnal Receiver
Test/Reset Switch
Manual Louvers
(Side to Side)
Remote Control
(or Optional Wall Thermostat)
1. Before Conduting the Installation:
1) Sign the contract to state your installing job contents, service, payment terms, and warranty.
2) Read the unit's manuals and other instructions.
3) Double-check if the unit type, model and size will do the job the customer expects.
4) Make sure the electrical power circuit breaker, wire type/size, insulation, drainage pipe, sealing and banding
materials, mounting and supporting brackets are properly selected and sized.
2. Before Charging Indoor Unit:
The trained or experienced HVAC installer must check and make sure the following are all good, before turning on
refrigerant valves to release refrigerant from the outdoor unit into the inter-connecting copper pipes and indoor unit:
1) Refrigerant pipe sealing at indoor unit (should hear some hiss, once breaking the seal at any one of the indoor
unit copper pipe connectors)
2) Drainage/water leakage at indoor unit (should see the drainage come out of indoor unit drain hose, freely, without
any unexpected dripping in anywhere else);
3) Fan wheel rotation at indoor unit (should rotate freely and smoothly, without any abnormal noise or restriction);
4) Fan wheel roration at outdoor unit (should rotate freely and smoothly, without any abnormal noise or restriction);
5) No-kinking or other leaking potentials found at inter-connecting refrigerant and condensate pipes (should be
smooth with no kink);
6) Pressure leakage test in the cavities of inter-connecting copper pipes and indoor unit (should not blow any soap
bubble due to gas leakage from inside the pipe);
7) Vacuum level test in the cavities of inter-connecting copper pipes and indoor unit (vacumm 15 minutes for system
of 2 zones, 25 minutes for system of 3 or more zones. Should hold 500 Micron or better);
8) No other abnormal situation should be found.
3. Before Finishing Installation:
Must check all the functions and make sure they all work fine and nothing abnormal is found, before calling the
installation a completion. A qualified installation shall end with an explanation how to operate the unit and
maintain it to good conditions, as well as a service contact person's name and phone number.
4. During Service or Trouble-Shooting:
1) Must check the units to find all the problems, before conducting any service or trouble-shooting.
2) Must read manuals and instructions.
3) Must get unit model and serial numbers, before calling the manufacturer technical support or customer service.
4) Must call the manufacturer technical support or customer service, when you are at the job site. May need to
run the units, go through steps and check few things, using some professional tools and special procedures.
MANUFACTURE'S IMPORTANT NOTES FOR INSTALLING CONTRACTOR/TECHNICIAN
Individual Wrentch Set (Use Two at
One Time)
Flare-Nut Tool Set (Not Shown)
Hex Head Allen Wrentch Sets (Metric
and Imperial)
Brazing Rods and Brazing Torch
Outfit for AC Application (Not Shown)
Brazing Flux
Nitrogen Cylinder for Positive
Pressure Leakage Check (Not Shown)
Soap Bubble for Positive Pressure
Leakage Check (Not Shown)
Vacuum Pump for Negative Pressure
Leakage Check
Helium Refrigerant Minor Leakage
Check (Not Shown)
Manifold
YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World !
YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World !
