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12.3.3.5
Drain Elbow and Hose Installation
Fix the drain elbow 2 and packing 9 to the bottom of
indoor unit, like show in illustration.
Use inner diameter 17 mm drain hose in the market.
This hose must to be installed in a continuously
downward direction and in a frost-free environment.
Guides this hose's outlet to outdoor only.
Do not insert this hose into sewage hose or cleaning
hose that may generate ammonia gas sulfuric gas, etc.
If necessary, use hose clamp to further tighten the hose
at drain hose connector to prevent leakage.
The water may drip from drain hose. Therefore must
ensure the outlet of the hose is always not closed or
blocked.
12.3.4 Connect the Cable to the Indoor Unit
1
Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed
4 x 4.0 or 6.0 mm
Ensure the colour of wires of outdoor unit and the terminal No. are the same to the indoor unit's
o
respectively.
Earth wire shall be longer than the other wires as shown in the figure for the electrical safety in case of
o
the slipping out of the cord from the Holder (Clamper).
2
An isolating device must be connected to the power supply cable.
Isolating device (Disconnecting means) should have minimum 3.0 mm contact gap.
o
Connect the approved polychloroprene sheathed power supply 1 cord (3 x 4.0 or 6.0 mm
o
2 cord (3 x 4.0 mm
to the terminal board, and to the other end of the cord to isolating device (Disconnecting means).
3
To avoid the cable and cord being damaged by sharp edges, the cable and cord must be passed through a
bushing (located at the bottom of indoor unit) before being connected to the terminal block. The bushing must
be used and must not be removed.
Connecting with external device (optional)
1
All connections shall follow to the local national wiring standard.
2
It is strongly recommended to use manufacturer-recommended parts and accessories for installation.
3
Maximum output power of booster heater shall be ≤ 3 kW. Booster Heater cord must be (3 x min 1.5 mm
type designation 60245 IEC 57 or heavier.
4
Two-way Valve shall be spring and electronic type, refer to "Field Supply Accessories" table for details. Valve
cable shall be (3 x min 0.5 mm
sheathed cable.
* note: - Two-way Valve shall be CE marking compliance component.
- Maximum load for the valve is 9.8VA.
5
Three-Way Valve shall be spring and electronic type. Valve's cable shall be (3 x min 0.5 mm
designation 60245 IEC 57 or heavier, or similarly double insulation sheathed cable.
* note: - Shall be CE marking compliance component.
- It shall be directed to heating mode when it is OFF.
- Maximum load for the valve is 9.8 VA.
6
Room Thermostat cable must be (4 or 3 x min 0.5 mm
sheathed cable.
7
Tank OLP cable must be (2 x min 0.5 mm
cable.
* note: if such connection deemed NO necessary for tank OLP, please connect jumper between terminal no.
13 and 14.
8
Tank Sensor shall be resistance type, please refer to Graph 5.1 for the characteristic and details of
sensor. Its cable shall be (2 x min 0.3 mm
of PVC-sheathed or rubber-sheathed cable.
2
flexible cord, type designation 60245 IEC 57 or heavier cord.
2
) and power supply 3 cord (3 x 1.5 mm
2
), of type designation 60245 IEC 57 or heavier, or similarly double insulation
2
2
), type designation 60245 IEC 57 or heavier cord
2
), double insulation layer of PVC-sheathed or rubber-
), double insulation layer of PVC-sheathed or rubber-sheathed
2
), double insulation layer (with insulation strength of min 30 V)
62
2
) and power supply
2
), of
2
), of type
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