20 / 24
Typical ECB-PTU-208 Wiring Diagram
0-10 V
0-10 V / 2-10V
Electric Heater
100-240 VAC
Power supply
BACnet MS /TP Network
3 Speed Fan
RJ 45
24 VAC PWM
24 VAC PWM
EC-Sensor-SO
Unused / Window Contact
Unused / AuxContact / ChgOver / OccSensor
Unused / AuxContact / ChgOver / CondSensor
UI2 = SpOff set / ReturnTemp / DischargeTemp / WaterTemp / Unused
SI3 = SpaceTemp / ReturnTemp / DischargeTemp / WaterTemp / Unused
9
EC-Smart-Comfort-
SOF
Pass-Through
RJ-45 Connec�on
EC-Smart-Vue
Pass-Through
RJ-45 Connec�on
Subnet MAC
Address
RJ-45 Subnet
Connector
EC-Mul�-Sensor
NET-
NET+
SHIELD
TEMP
COMMON
SETPOINT
LED
CONNECTORS
24 AC
COM
OUT
0-10V
CO2 SensorCO2 Sensor
1
2
3 4
9
9
9
6
Fresh Air Damper
AO8 = Fresh Air Damper /
Cool Valve / Heat Valve
8
Heat
Cool /
Change
Over
5
10 10
Variable Fan
0-10
VDC
L N
V
0-10
VDC
L N
V
AO7 = Variable Fan /
Cool Valve / Heat Valve
7
Variable Fan
0-10
VDC
L N
V
AO7 = Variable Fan /
Cool Valve / Heat Valve
7
M
1
2
3
N
M
1
2
3
N
0-10
VDC
+
~
-
0-10
VDC
+
~
-
0-10
VDC
+
~
-
5mA / 0-10V
AO8
AO7
3.5A
Un:100-240V
9A / Un9A / Un
TOTAL 3A / UnTOTAL 3A / Un
5mA / 0-10V
AO8
AO7
3.5A
Un:100-240V
9A / Un
TOTAL 3A / Un
500mA / 24V~
5mA / 0-10V
AO8
AO7
3.5A
Un:100-240V
9A / Un
TOTAL 3A / Un
500mA / 24V~
£ SI3 input can be configured for SpaceTemp, ReturnTemp, WaterTemp or DischargeTemp sensor (10KTypeII) using SI3Config (MSV19)
£ UI2 Input can be configured for SetpointOffset (10K), ReturnTemp, Watertemp or DischargeTemp sensors (10KTypeII) using UI2Config
(MSV18)
£ DI4 input can be configured for WindowContactNO or WindowContactNC using DI4Config (MSV20)
£ DI5 input can be configured for AuxContactNO, AuxContactNC, ChgOverHeat, ChgOverCool, CondSensorNO or CondSensorNC using
DI5Config (MSV21)
£ DI6 input can be configured for AuxContactNO, AuxContactNC, ChgOverHeat, ChgOverCool, OccSensorNO or OccSensorNC using DI6-
Config (MSV22)
£ This Valve output is used for Change Over if SystemType (MSV24) is set to ChgOver / ChgOverElecHeat
£ 3 Speed fan is used if FanType (MSV 25) is set to 3Speed
£ Variable Fan is used if FanType (MSV25) is set to VarSpeed and AO7 control valve (cool or heat) if Fantype = None
£ Fresh Air Damper control signal can be configured for 0-10V or 2-10V using DamperCtrlType (MSV32) and AO8 control valve (cool or heat)
if DamperCtrlType = None
£ Support every version of EC-Multi-Sensor, EC-Smart-Vue and EC-Smart-Comfort / EC-Smart-Air
£ DO5 and DO6 output can be used for control Floating Valve (heat, cooling or change Over) using HeatValveType (MSV27) or CoolVal-
veType (MSV26) with DO5 = Open and DO6 = Close