Air Source Heat Pump Water Heater
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distance between them should be greater than 20 cm. Otherwise, the
unit may not be able to communicate properly.
(2) If the unit is installed in a place susceptible to electromagnetic
interference, the communications line of the wired controller and the line
of the temperature sensor must be used, shielded twisted pair.
10.3 Rainproof Box Installation
If the wired controller is to be installed in outdoors or dank places, please
install a rainproof box for wired controller. Pay attention to cut off the power
supply of heavy current wire embedded in the installation hole of wall. The whole
installation procedure shall be done without electricity. The installation method is
as follows:
Separate the panel of wired control and bottom plate with a flat screwdriver;
Pull out the communication wire (4-core twisted pair wire) inside the
installation box and make this wire go through the wire-crossing hole of rainproof
box and wired controller bottom plate;
Secure the bottom plate of wired controller, rubber cushion, rainproof box at
the installation box with screws; if there is no installation box in the wall, please
drill hole on the wall and install plastic expansion pipe. Secure the bottom plate of
wired controller, rubber cushion and rainproof box at the plastic expansion pipe
with tapping screws (plastic expansion pipe and tapping screw are provided by
our company);
Insert the communication cable (4-core twisted pair wire) into the groove of
wired controller;
Align the panel of wired controller with the bottom plate and then fasten
them together.
Note: When disassembling the wired controller, please use the flat
screwdriver carefully (As shown in Figure 10-4).