WD VTC 300 500 MUL

Wiring Diagram SAVE VTC 300, SAVE VTC 500
5 (7)
Symbol Description
SAF
Supply air fan.
EAF
Extract air fan.
SAT
Supply air temperature sensor.
1
BRK
All phase breaker.
ECT
Extra controller temperature sensor.
MR
Overheat protection with manual reset.
AR
Overheat protection with automatic reset.
RL
Relay, switch signal 24V DC
EMI
Electromagnetic interference filter for 230 V AC.
ELH
Electrical heater battery.
CB
Connection to external connection board.
OHT
Overheat protection sensor.
2
OAT
Outdoor air sensor.
FPT
Frost protection sensor
3
M-EMT
Emergency thermostat, manual reset 120°C (normally closed contact)
A-EMT
Emergency thermostat, automatic reset 60°C (normally closed contact)
RHS/EAT Internal relative humidity/Extract air temperature sensor.
E
External control panel.
C
Motor control (bypass damper).
WH
Water valve actuator, heating.
4
WC
Water valve actuator, cooling.
5
U
Damper motor Outside air.
V
Damper motor Exhaust air.
BU
Blue.
BN Brown.
BK
Black.
RD
Red.
YE
Yellow.
GY
Gray.
WH
White.
GN Green.
1
For water heating/cooling battery,
2
Units with electrical re-heater battery.
3
For water heating battery.
4
Water heater can be connected to any free analog output (AO) either on connection board or main board
and then configured in HMI.
5
Water cooler can be connected to any free analog output (AO) either on connection board or main board
and then configured in HMI.
Systemair UAB Linų st. 101, LT–20174 Ukmergė, LITHUANIA
Phone: [phone] Fax: [phone] 254527-en_GB- v1.1