Isolation - Before commencing work make sure that
the unit and Nuaire control are electrically isolated
from the mains supply.
5.
0 Wiring
Wiring Connections for units with Ecosmart Control.
Wiring for units with Electric Heater 3Kw
Fig 14:
Wiring for units with Electric Heater 4.5 – 9 Kw
Fig 15:
Installation, Operating and Maintenance Instructions
INV
DRIVE
18V
EN2
EN1
0V
0-10V
BK
WHT
RED
0V
0-10V
18V
0V
0-10V
SET
POINT
CO2
IN
BMS
HEAT
SENS
FAULT
RUN
HEAT
DEMAND
DAMPER
OP
CL
N
RET
SUPPLY
N
E
L
SL
Net Ecosmart
P IN
0V
0-10V
Standby
Fan1
Fan 2
Heating
Cooling
Fault
Frost
Tx
Rx
PWR
Min
Max
SL
Run-On
Trickle
0
1
650462 (830109)
Test
Neutral 230V/220V
Live 230V / 220V
Live Load
Neutral Load
Sensor
Sensor
HEATER NEUTRAL
HEATER EARTH
HEATER LIVE
E
N
L
Heater Temperature Settings
INV
DRIVE
EN2
EN1
0V
0-10V
BK
WHT
RED
0V
0-10V
18V
0V
0-10V
SET
POINT
CO2
IN
BMS
HEAT
SENS
FAULT
RUN
HEAT
DEMAND
DAMPER
OP
CL
N
RET
SUPPLY
N
E
L
SL
Net Ecosmart
P IN
0V
0-10V
18V
Standby
Fan1
Fan 2
Heating
Cooling
Fault
Frost
Tx
Rx
PWR
Min
Max
SL
Run-On
Trickle
0
1 650462
(830109)
Test
A1
A2
4T2
3L2
R2
2T1
1L1
6T3
5L3
Heater
GND
Heater Live
Heater Neutral
Thermistor T Thermistor R
Signal 0V
VE
OIP 5V
Note:
Customer connections
for electric heater.
40amp draw.
E
N L
L
N
E
Heater Temperature Settings
Note:
Customer connections
for fan and control.
5amp draw max.
5
18. 10. 17. Leaflet Number 671679
Notes: Local isolator (by others)
All inter-connections between circuit boards, blowers and sensors are made at the
factory. Remove link wire if switched live signal, an enabler or BMS signal is connected.
COOL DOWN PROTECTION (ELECTRIC HEATER) NOTE: Ecosmart cool down protection
is activated if the fan is disabled whilst the electric heater is enabled. The unit reacts by
running the fan for a cool down period of 10 minutes; this allows any residual heat left by
the operation of the electric heater to dissipate
safely
.
Notes: Local isolator (by others)
All inter-connections between circuit boards, blowers and sensors are made at the
factory. Remove link wire if switched live signal, an enabler or BMS signal is connected.
COOL DOWN PROTECTION (ELECTRIC HEATER) NOTE: Ecosmart cool down protection
is activated if the fan is disabled whilst the electric heater is enabled. The unit reacts by
running the fan for a cool down period of 10 minutes; this allows any residual heat left by
the operation of the electric heater to dissipate
safely
.
DAVE Supply Fans (ES Models) 50/60Hz
