V-37
C
ONTROL
S
YSTEMS
Connection Indoor unit : ERV : ERV remote controller = N : 1 : 1
If even only one indoor unit is turned on, ERV connected by the same COM2 communication line
operates accordingly. If all indoor units are turned off, ERV stops to operate. At that time, it is
possible to control ERV with the connected ERV remote controller. ERV remote controller
is not applicable for the indoor unit control.
Control Control example)
A. 1 Indoor unit is turned On among all indoor units
①
~
⑤➞
ERV
⑥
is automatically turned On.
B. 1 Indoor unit is turned Off among all indoor units
①
~
⑤➞
No operation status change in ERV ⑥.
C. All indoor units
①
~
⑤
are turned Off
➞
ERV
⑥
is automatically turned Off.
D. Turn ERV remote controller
⑦
On
➞
Only ERV
⑥
is turned On, no changes in indoor unit
①
~
⑤
’s operation status.
Display Displays the operation status of one of connected ERV.
- When an error occurs at one of the indoor units: Displays the error code of the indoor unit.
Error occurrence - When an error occurs at ERV: Displays the ERV error code.
- When errors occur at both indoor units and ERV: Displays the error code with higher value.
Remote controller for indoor units (MWR-TH01, WS00, SH00) cannot be connected to the same COM2
communication line with the ERV remote controller.
The total number of indoor units and ERVs that can be connected to one ERV remote controller is Max.16.
DVM indoor unit synchronization
N : 1 : 1 Synchronous control
Outdoor unit
Wired R/C
COM1(F1/F2)
COM2
(F3/F4)
1
6
7
2 3 4 5
05-1_control systems(002~045) 3/15/08 4:09 Page 37
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