Cooper & Hunter HB16NK, Руководство пользователя

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Hydro Box of C
H
V5 Home Installation and Operation Manual
10
3.2.3 Connection of Hot Water System Pipes
Preparation of pipe: Hot water pipe must be used for circulating water inlet and outlet pipe.
The PPR pipe with a nominal outer diameter of DN25 is recommended, while S2.5 series (wall
thickness of 4.2mm) shall be used. Hot water pipe must be used for the cold water inlet pipe and
hot water outlet pipe on water tank. The PPR pipe with a nominal outer diameter of DN20 is
recommended, while S2.5 series (wall thickness of 3.4mm) shall be used. The PPR pipe must
comply with the specifications defined under the national standard GB/T18742. If using other
similar insulation pipes, please select in reference to the outer diameter and wall thickness above.
Installation of circulating inlet / outlet pipe: The water inlet of the main unit is connected to the
circulating outlet from water tank, while the outlet of the main unit is connected to the circulating
inlet from water tank. The included manual discharge valve A must be installed beside the water
inlet of main unit in a higher position and make sure the exhaust port vertically upward. The
included manual discharge valve B must be installed beside the circulating inlet of water tank in
the lowest position and make sure the discharge port vertically downward. If possible, the manual
discharge valve B must be installed at a position easy for the user to operate.
Installation of water tank inlet / outlet pipe: The inlet pipe must be installed with check valve
(Take care on the direction when installing the check valve, with the arrow “→” pointing toward the
water tank), filter and cutoff valve, while the installing sequence must be identical to the installation
schematics. The outlet pipe must be installed with one cutoff valve at least.
Installation of bottom sewage pipe to water tank: Use PPR pipe to connect the sewage port to
the ground drain. One cutoff valve must be installed in the sewage pipe, while it must be installed
at a position easy for the user to operate.
After connection of all water pipes, firstly check them for leakage (For leakage detection,
please see the debugging of complete unit). If ensuring no leakage, carry out thermal insulation to
all pipe systems. Take care on thermal insulation at the connection of valves and pipe fittings. It is
recommended to use thermal insulation cotton not less than 15mm thick. After wrapping the
thermal insulation cotton, use the included strap to bundle the water pipe, water temperature
sensor and cables properly.