AUX AL-H12/4R1D, Service Manual

Page: 77 / 157

AUX-Light CAC 50Hz R410A Universal outdoor unit
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7.Installation
7.1 Preparation and equipments before installation
1. Please buy following spare parts from your local market before installation

Hung bolts M12, 4 pcs

Drainage pipe PVC

Copper pipe

Adhesive belt (big size) 5 pcs, (small size) 5 pcs

Heat insulation material used to connect copper pipe (PE foam material, its thickness is more
than 8mm)

Power cable, electrical wire between indoor and outdoor unit(Must be in accordance with the
wire diameter in the wiring diagram)
2. Beside general implements, other implements are needed when connecting the pipe

Acetylene cylinders, oxygen cylinders (when longer pipe used it should be welded)

One set pipe cut machine. (cut copper pipe)

Refrigerant cans, electronic balance (when longer pipe used additional gas should be charged)

Pressure gauges, pipe clamp, welding torch, 2B silver electrode

Wrench 2 pcs, one of them is with adjustable torque wrench(42N.m,65N.m,100N.mm)

Nitrogen cylinder (in order to prevent oxidation when welding, using Nitrogen to replace the
air)
7.2 Indoor unit installationprecaution
◇ Hanging location should be able to support the unit’s weight, there should be no increase in noise
and vibration. If the hanging location needs reinforcement, it should be reinforced before installation;
◇
Choose the space above the ceiling that can put the indoor unit inside;
◇
The location should be easy for drainage;
◇
The unit should not be installed in the heat source, steam source oil mist places (such as machine
room, kitchen, laundry room, mechanical workshop, etc.) in order to avoid performance degradation,
electric shock, plastic parts corrosion which lead to unit broken;
◇
Choose the location at least 1 meter away from TV and radio, in order to avoid interference to them
◇
There is no obstacles getting in the way of air circulation, cold air can evenly spread to all corners of