11
Unit Installation
WARING!
①
Normal Open type should be connected to wire (ON) and wire (N)for valve closing in cooling mode.
②
Normal Closed type should be connected to wire (OFF) and wire (N)for valve closing in cooling mode.
(ON) : Line signal (for Normal Open type) from PCB to 2-way valve
(OFF) : Line signal (for Normal Closed type) from PCB to 2-way valve
(N) : Neutral signal from PCB to 2-way valve
The 2-way value 2 is reserved without any control program. At the eld installation, it should be wired at the
terminal board of the 2-way valve 1.
4.9 Wired Controller
Wired controller wiring guidance:
4.10 Wiring of Other Auxiliary Heat Sources
Other auxiliary heat sources are allowed for the equipment and controlled in such a way that the mainboard
will output 230V when outdoor temperature is lower than the set point for startup of the auxiliary heat source.
13 14
Other Therma
l
XT2
N
4.11 Wiring of the Gate-Controller
If there is gate control function,installation guide follow as:
(1) HLR8Pd/Na-K, HLR10Pd/Na-K
XT3
1 2
Gate-Controller
(2) HLR12Pd/Na-M, HLR14Pd/Na-M
XT4
5 6
Gate-Controller
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