El
E
C
tRIC
al
W
o
RK
Electrical wiring work
36
English
Input contact
1
3
5
7
9
11
13
15
17
19
2
4
6
8
10
12
14
16
18
20
B-t/B
no.
name
Signal
Function
Contact on
(Short)
Contact off
(open)
Signal
recognition
Setting unit
Maximum
allowable
current
B-t/B
1-2
Disuse
-
-
-
-
-
-
-
3-4
Disuse
-
-
-
-
-
-
-
5-6
Disuse
-
-
-
-
-
-
-
7-8
Pump interlock
Zero
voltage
contact
Signal about pump operation
• Pump interlock error (E918)
occurs if ON is not input
when operating pump
Pump ON
Pump OFF
Usual input
Each unit
10 mA
9-10
Operation ON/
OFF
Controlling operation ON/
OFF
Note1)
Note3)
Usual/instant
input
Main unit of
group
NOTE4)
10 mA
11-12
13-14
Operation mode
Selecting cool/heat mode
Note2)
Heat
Cool
Usual input
Main unit of
group
NOTE4)
10 mA
15-16
Hot water
(Cool storage)
mode
Entering hot water (cool
storage) mode by external
control
• Cool + ON: Cool storage
• Heat + ON: Hot water
Cool storage/
Hot water
Cool/Heat
Usual input
Main unit of
group
NOTE4)
10 mA
17-18
Hot water
(Cool storage)
control standard
Control depending on set
temperature when ON
Control depending on external
hot water (cool storage)
thermostat when OFF
Control by set
temperature
Control by
thermostat
Usual input
Main unit of
group
NOTE4)
10 mA
19-20
Hot water
(Cool storage)
thermostat signal
When thermostat is set as
standard for hot water (cool
storage) mode
• Thermo ON when ON
(Not over range of water
outlet temperature)
• Thermo OFF when OFF
Thermo ON
Thermo
OFF
Usual input
Main unit of
group
NOTE4)
10 mA
• To use hot water (cool storage) mode, the function should be activated by Module Control.
DB68-05916A-09_IM_DVM Chiller Outdoor_EU_EN_.indd 36
2022-05-02 오전 9:00:03
