WD VSR150B 300 500 VTR250B 300 500 MUL 20210315 074216115

Wiring Diagram SAVE VSR 150B, VSR 300, VSR 500, VTR 250/B, VTR 300/B, VTR 500
3 (7)
Symbol Description
SAF
Supply air fan.
EAF
Extract air fan.
SAT
Supply air temperature sensor.
1
EMI
Electromagnetic interference filter for 230 V AC.
RL
Relay, switch signal 24V DC
ELH
Electrical re-heater battery.
CB
Connection to external connection board.
OHT
Overheat protection sensor.
2
OAT
Outdoor air sensor.
FPT
Frost protection sensor
3
RM Rotor motor.
M-EMT
Emergency thermostat, manual reset 120°C (normally closed contact)
A-EMT
Emergency thermostat, automatic reset 60°C (normally closed contact)
RGS
Rotor guard sensor.
RHS/EAT Internal relative humidity/Extract air temperature sensor.
E
External control panel.
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] 254533-en_GB- vv01