V-35
C
ONTROL
S
YSTEMS
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
1 : 1 : 1 synchronous control
Outdoor unit
Wired R/C
COM1(F1/F2)
COM2
(F3/F4)
Max. distance between the farthest ERV and ERV remote
controller: 1000m
ERV
Wired R/C
Length of transmission wiring
1
2
3
Connection Indoor unit : ERV : ERV remote controller = 1 : 1 : 1
Control
ERV operates along with On/Off status of the indoor unit which in connected by the same
COM2 line. 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 example)
A. Indoor unit
①
is turned Off
➞
ERV
②
is automatically turned Off.
B. Indoor unit
①
is turned On
➞
ERV
②
is automatically turned On.
C. Turn ERV remote controller
③
Off
➞
Turn ERV
②
Off only, no operation change in the indoor
unit
①
.
Display Operation status of ERV
- When indoor unit error occurs: Displays the indoor unit error code.
Error occurrence - When an error occur at ERV : Displays the error if there is an error occurred in one of ERVs.
- When errors occur at both indoor unit and ERV : Displays the error code with the higher value.
1000m
05-1_control systems(002~045) 3/15/08 4:09 Page 35
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