22
| EN
AMBERAIR COMPACT S-CX v2023.3
4.16.6. INTEGRATED WATER HEATER OR COMBINED HEATING/COOLING COIL
The water circulation pump and valve actuator can only be connected to the AmberAir Compact units that are designed to operate with the internal
water heater or combined heating/cooling coil.
The position of the valve actuator with 24VDC power input is controlled by the 0-10VDC signal (MCB AO3 for water heater; EX1 AO3 for combined
heating/cooling coil). The circulation pump is controlled by the start/stop (digital output) signal. When digital output (EX2 DO8 for water heater;
EX2 DO3 for combined heating/cooling coil) is activated the circulation pump should start. When the digital output is deactivated, the circulation
pump should stop.
For the units with the combined heating/cooling coil, the mode of the coil (heating/cooling) can be switched with the reverse thermostat (NC/NO)
which connects to MCB DI1.
DRAWN BY
CHECKED BY
SIGNATURE
DUTIES / NAME
DATE
UAB"SALDA"
Drawing #
Book #
APPROVED BY
1
2
3
4
5
6
7
8
9
10
EI O. Drąsutis
EI D. Aleksandravičius
MCB Connections wired by the user
Water heater accesories
Connections principal scheme
1
04
2023-03-27
2023-03-27
2023-03-27
X39:
1
- P
E
X39:
2
- N
(L
1)
X39:
3
- D
O8
-N3
EX2 V1.0
X14:
5
- G
ND
X14:
6
- A
O3(
0-
10
VD
C)
-N1
MCB V2.0
X12:
1
- P
E
X12:
2
- G
ND
X12:
3
- +2
4V
DC
-N1
MCB V2.0
M
-P2
PE N
L
0-10 VDC
24VDC
0-
GN
D
Y-0
-1
0V
DC
G-
24V
DC
-M2
+CB
+UC
Circ. pump
Valve
actuator
Fig. 4.16.6.1 Internal water heater accessories connection
