Shenzhen Envicool Technology Co., Ltd.
CAUTION!
Too high voltage may lead to damage of cabinet
air conditioner. Please follow the voltage
requirement marked on the nameplate to switch on
the air conditioner.
CAUTION!
In order to avoid any damaging effects, before
turning on the power supply, the cabinet air
conditioner must be reliably earthed.
Note: The power input port identifier is subject to
the specific unit screen printing
References to common (copper wire) selection :
Unit: mm
Rated
Current
≤5A
≤10A
≤15A
≤25A
Power line
diameter
1.0
1.5
2.5
4
Defination for the terminals of single-phase air
conditioner:
Defination for the terminals of three-phase air
conditioner:
CAUTION!
When public warning stem nodes are wired
according to the COM and NC, the stem nodes are
in closure state when there is no alarm output, and
the stem nodes are in disconnected state when
there is alarm output.
Port
Definition
Single-
phase
L(L1) L:220VAC power input cable L;
L1:110VAC power input cable L
N(L2) N:220VAC power input cable N;
L2:110VAC power input cable L
PE
Grounding wire of the air
conditioner
Three-
phase
L1
380V live wire
；
L2
380V live wire
；
L3
380V live wire
；
PE
Grounding wire of the air
conditioner
NC
The first public alarm dry nod
(NC)
COM
The first public alarm dry nod
(COM)
NO
The first public alarm dry nod
(NO) (Option)
1
The second public alarm dry
nod (COM) (Option)
2
The second public alarm dry
nod (NO) (Option)
3
N/A
4
Hydrogen discharge /
emergency fan dry contact (FG)
(Option)
5
Emergency fan dry contact
(NO) (Option)
6
Emergency fan dry contact
(COM) (Option)
7
Door open alarm input (Option)
8
RS485+
RS485 communication ports (-)
(Option)
RS485-
RS485 communication ports (+)
(Option)
Emergency fan(AC input) connecting
interface diagram:
EIA series air conditioner user manual
8
