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Air Source Heat Pump Water Heater
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④
The water tank is only able to offer hot water by virtue of the tap water
pressure.
⑤
The cut-off valve in cold water inlet shall be kept open during operation.
⑥
Water supply for insulation pressure-bearing water tank relies on pressure
of tap water or other water sources. Water input pressure for the water tank
must between 0.1MPa~0.7MPa. The water tank offers hot water if water
input pressure is not below 0.1MPa. If water input pressure of tap water is
higher than 0.7MPa, pressure reduction device (stabilizing valve) shall be
added in water inlet pipeline of the water tank to allow water input pressure
of water tank within the required ranges.
Our products are subject to change with technical improvement and please
always see the corresponding product’s manual for latest installation and operation
instructions and see the wiring diagram covered in the manual or attached to the
unit for how to perform electric wiring.
5 Electrical Wiring
5.1 Electrical Wire Layout
(1) This unit is the Class
Ⅰ
equipment and shall be grounded reliably to the
special ground device by the skilled personnel.
(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) The enough sized leakage circuit breaker and air switch shall be used in
the fixed circuit.
(4) Please take reliable grounding measures. Grounding shall be set in
special grounding devices of architecture.
(5) The power supply shall comply with the nameplate and only special power
circuit for air-to-water heat pump water heater is allowed.
(6) The power lines shall be sized properly. See the table below for reference.
(7) Wiring shall be performed in accordance with the national rules.
(8) Do not pull the power lines by force.
(9) If the power cord is damaged, to avoid danger, it shall be replaced by
professional staff of manufacturer, its maintenance or similar department.
Summary of Contents for GRS-1.5/TD150ANbA-K
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