Air Source Heat Pump Water Heater
26
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).
