Air Source Heat Pump Water Heater
21
9 Wiring
9.1 Wire Layout
(1)
This air source water heater is class
Ⅰ
appliance. Ensure that wire layout
is performed by professional personnel according to national wiring rules.
(2)
Ensure that a switch for all-pole disconnection is available for the fixed
lines and is directly connected to wiring terminals of the power supply. Ensure that
contactor opening distance on all poles meets the disconnection requirements under
overvoltage category III conditions.
(3)
Ensure that reliable grounding measures are taken. A dedicated
grounding apparatus should be used.
(4)
Use the power supply with specifications provided in the nameplate, and
use circuits dedicated for air conditioners.
(5)
Copper-conductor cables must be adopted for power cables, and the
operating temperature should not greater than the stipulated value. The diameter of
the cables should be large enough. For details, refer to Table 9-1. If the length of the
power cable is greater than 15 meters, choose a power cable with a larger
cross-sectional area to prevent problems caused overloading. Do not pull the power
cable during the installation.
(6)
If the installation conditions on site change, consider using cables whose
reduced capacity can still meet site requirements, based on the specifications of the
power cables and air circuit breakers provided by the vendor.
(7)
If the supply cord is damaged
，
it must be replaced by the manufacturer
，
its service agent or similarly qualified persons in order to avoid a hazard.
Table 9-1 Power configuration table
Model
Power
Supply
Minimum Sectional Area (mm
2
)
of Power Cables
Air Circuit Breaker
Capacity (A)
Firing Line
Zero
Line
Ground
Line
CH-
HP3.5SWNK
220V-240V
~50Hz
1.5
1.5
1.5
16
