INVENTOR DHW-C3.5/A1-K, Руководство по обслуживанию

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HEAT PUMP WATER HEATER INSTALLATION
26
2.3 Specification of Power Cord & Air Switch
Layout of Wires
1. Air source heat pump water heater is of I type electric appliance, so reliable earthing measure
must be performed on special device by professionals.
2. Leakage switch and air switch with enough capacity must be reserved in the fixed circuit.
3. The power supply must accord with the specifications on the nameplate and special circuit for
air conditioner.
4. The line width of power cord should be big enough. Refer to the following table for selection:
5. Install the wires according to national wiring regulations.
6. Don’t pull the power wire strongly.
Model Power supply
Min. sectional area of power cord
˄ mm2 ˅
Capacity of air
switch
˄
A
˅
Live wire
Neutral
wire
Earthing
wire
DHW-C3.5/A1-K 220-240V
̚
50Hz 1.5 1.5 1.5 16
DHW-C5.0/A1-K 220-240V
̚
50Hz 1.5 1.5 1.5 16
DHW-C7.2/A1-K 220-240V
̚
50Hz 2.5 2.5 2.5 20
DHW-C3.8/NbA-K 220-240V
̚
50Hz 1.5 1.5 1.5 16
DHW-C5.0/NbA-K 220-240V
̚
50Hz 2.5 2.5 2.5 20
Notice:
1. The power cord must be copper core and working temperature should not exceed specified
value.
2. If the power cord is higher than 15m, please enlarge its sectional area to avoid overload.
3. Specification of power cord was selected when BV single-core wire (2-4 pieces) through plastic
pipe is laid at ambient temperature of 40 and temp
ć
erature of D type air switch is 40 .
ć
4. If there is any change of actual condition of installation, please change the specification of
power cord and air switch supplied by us.
Electric Wiring and Connection
1. Unscrew the screws fixing terminal box cover on right side plate of master unit to open the
terminal box cover. External wiring diagram is as below:
2. Connect one end of earthing wire attached with the master unit with the earthing screw at the
bottom of water tank and the other end with the earthing screw in the terminal box at the side of
main unit.
3. There is a piece of power cord with leakage protective function attached with the unit. One end
of it should be connected with terminal board of master unit, blue with N, brown with L and
yellow green wire earthed. And the other end (with leakage module) should be connected with the
air switch equipped by the user. Pay more attention to difference between live and neutral wires,