Installation Procedure
5. REFRIGERANT PIPING (As for outdoor piping, please refer to installation Manual of outdoor unit.)
Outdoor is precharged with refrigerant.
Be sure to see the Fig.1, when connecting and removing piping from unit.
For the size of the flare nut, please refer to Table 1.
Apply refrigerant oil at both inside and outside of lflare nut. Tighten it band tight
Check piping joints for gas leakage. Insulate piping as shown in Fig. below.
Cover joint of gas piping and insulator 7 with seal.
Apply refrigerant oil | Medium size seal pad 11 (accessory) | |
| (Cover the piping joint | |
| with seal pad.) | |
Torque spanner | Clamp 3 | |
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spanner | Insulator (accessory) 8 | |
(For liquid pipe) | ||
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Piping joing | Insulator (accessory) 7 | |
Gas pipe (For gas pipe) | ||
Flare nut | Liquid pipe |
Pipe | Tighten | A(mm) |
| Flare shape | |
size | torque |
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6.35 | 1420~1720N.cm | 8.3~8.7 |
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| (144~176kgf.cm) |
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9.52 | 3270~3990N.cm | 12.0~12.4 |
| 2 | R0.4 ~ 0.8 |
| (333~407kgf.cm) |
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| 6180~7540N.cm |
| 0.5 | 45 |
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15.88 | 18.6~19.0 | 90 | A |
| |
(630~770kgf.cm) |
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19.05 | 9720~11860N.cm | 22.9~23.3 |
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(990~1210kgf.cm) |
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6. INSTALLATION OF WATER DRAINAGE PIPE
(1) Install water drainage pipe
Pipe dia, shall be equal or larger than that of unit piping.(pipe of polyethene; size: 25mm; O.D:32mm)
Drain pipe should be short, with a downward slope at least 1/100 to prevent air bag from happening.
If downward slope can't be made, take other measures to lift it up.
Keep a distance of
Slope over 1/100
Use the
Wind the drain hose to the clip using seal pad 9 .
Insulate drain hose in the room.
Tape (White)
Clamp
Clamp (accessory)
<Cautions for the drain water lifting pipe>
Installation height shall be less than 280mm.
There should be a right angle with unit, 300mm from unit.
| 300mm below 1~1.5m | Suspending bracket | |
Drain hose |
| below280220 | below500 |
(accessory) | drain water lifting pipe |
|
Clamp
(Note) (accessory)
(accessory) below75
The slope of water drain hose (1) shall be within 75mm, don't apply too much force on it. If several water hoses join together, do as per following proceedures.
Over 100
Connect water hoses with a T joint.
Specifications of the water hoses shall meet the requirements for the unit running.
20