Gree GRS-S16/Na-M, Service Manual

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HEAT PUMP WATER HEATER (NORTHERN EUROPE) INSTALLATION
14
Individual temperature or parameter may exceed 99, then adopt AX for
100
～
109, bX for 110
～
119, CX for 120
～
129, dX for 130
～
139, EX for
140
～
149, FX for 150
～
159, and X stands for a number between 0
～
9.
Under normal state, it shows temperature for back water.
5 Parameter display
It means the value shown at present main display area is parameter. It
shows only under Parameter Check mode.
6 Defrost display It displays when defrosting, otherwise it doesn’t displays.
7 System ID
It displays when system or compressor orders, for showing which system
is defrosting.
8 Testing display For testing, it displays under compel operation.
9 Error code display
It shows the error code displayed on Main Display Area. It displays when
there is error at system or communication.
Caution:
When unit is off, it displays only temperature of water tank. When unit is on, under normal state, if
there is no error, it displays temperature of water tank, if there is error, it displays error code; when
there is no operation after 60s of pressing the button, it quit back to normal state display automatically.
Auto antifreeze operation display (only for heat pump unit)
When auto antifreeze function is started and relevant conditions are satisfied, unit begins auto
antifreeze operation. At this time, LCD main display area displays code d2 (if there is error it displays
error code).
3.3 Installation
First select an installation position. According to the size of the communication line of the wire
controller, leave a recess or a embedded wire hole to bury the communication line.
If the communication line between the wire controller (85×85×20) and the indoor unit is
surface-mounted, use 1# PVC pipe and make matching recess in the wall (refer to Figure 6); If
concealed installation is adopted, 1# PVC pipe can be used (Refer to Figure 7).
No matter if surface mounting or concealed mounting is selected, it is required to drill 2 holes (in
the same level) which distance shall be the same as the distance (60mm) of installation holes in the
bottom plate of the wire controller. Then insert a wood plug into each hole. Fix the bottom plate of the
wire controller to the wall by using the two holes. Plug the communication line onto the control panel.
Lastly install the panel of the wire controller.