Technical Data; Wiring Diagram; Wiring Diagram - Components: Indoor Unit - Rotex RHBH04CA3V Manual De Instalación

7 Technical data

7 Technical data
7.1

Wiring diagram

7.1.1 Wiring diagram – components: Indoor unit
See the internal wiring diagram supplied with the unit (on the inside of the indoor unit switch box cover). The abbreviations used are listed below.
NOTES to go through before starting the unit
X1M : Main terminal
X2M : Field wiring terminal for AC
X5M : Field wiring terminal for DC
: Earth wiring
15
: Wire number 15
: Field supply
**/12.2 : Connection ** continues on page 12 column 2
1
: Several wiring possibilities
: Option
: Wiring depending on model
Backup heater
3V3 (1N~, 230 V, 3 kW)
configuration
6V3 (1N~, 230 V, 6 kW)
(only for *9W)
6WN (3N~, 400 V, 6 kW)
9WN (3N~, 400 V, 9 kW)
6T1 (3~, 230 V, 6 kW)
User installed options: Bottom plate heater
Domestic hot water tank
Domestic hot water tank
with solar connection
Remote user interface
Ext. indoor thermistor
Ext. outdoor thermistor
Digital I/O PCB
Demand PCB
Solar pump and control station
Main LWT:
On/OFF thermostat (wired)
On/OFF thermostat (wireless)
Ext. thermistor
Heat pump convector
Add LWT:
On/OFF thermostat (wired)
On/OFF thermostat (wireless)
Ext. thermistor
Heat pump convector
Installation manual
18
X6M, X7M : Backup heater terminal
X4M : Booster heater terminal
: Not mounted in switch box
: PCB
POSITION IN SWITCH BOX
Q1L
A7P X6M X7M
TR1
K1M K2M
K5M K3M
A1P
X6Y
F1B F2B
X5M
X2M
A8P
X1M X4M
A4P
LEGEND
Translation can be found in the installation manual.
Part n° Description
A1P main PCB
A2P user interface PCB
A3P solar pumpstation PCB
*
A3P On/OFF thermostat (PC=power circuit)
*
A3P heat pump convector
*
A4P digital I/O PCB
*
A4P receiver PCB (wireless
*
On/OFF thermostat)
A7P pump driver PCB (only for *16*)
A8P demand PCB
*
B1L flow sensor
BSK solar pump station relay
*
DS1 (A8P) dipswitch
*
E1H backup heater element (1 kW)
E2H backup heater element (2 kW)
E3H backup heater element (3 kW)
E4H booster heater (3 kW)
*
F1B overcurrent fuse backup heater
F2B overcurrent fuse booster heater
*
F1T thermal fuse backup heater
F1U, F2U fuse 5 A 250 V for digital I/O PCB
*
FU1 fuse T 6.3 A 250 V for PCB
PHC1 optocoupler input circuit
*
K1M, K2M contactor backup heater
K3M contactor booster heater
*
K5M safety contactor BUH (only *9W)
K*R relay on PCB
M1P main supply pump
M2P # domestic hot water pump
M2S # 2 way valve for cooling mode
M3S (*)
3 way valve for floorheating/
domestic hot water
Q1DI, Q2DI # earth leakage circuit breaker
Q1L thermal protector backup heater
Q2L thermal protector booster heater
*
R1T outlet water heat exchanger thermistor
R1T (A2P) ambient sensor user interface
R1T (A3P) ambient sensor On/OFF thermostat
*
R2T outlet backup heater thermistor
R2T external sensor (floor or ambient)
*
R3T refrigerant liquid side thermistor
R4T inlet water thermistor
R5T (*) domestic hot water thermistor
R6T external indoor or outdoor
*
ambient thermistor
R1H (A3P) humidity sensor
*
S1S # preferential kWh rate PS contact
S2S # electrical meter pulse input 1
S3S # electrical meter pulse input 2
S6S-S9S # digital power limitation inputs
SS1 (A4P) selector switch
*
T1R (A7P) rectifier bridge (only for *16*)
TR1 power supply transformer
X*M terminal strip
X*Y connector
* : optional
(*) : standard for *HV*, optional for *HB*
# : field supply
4D077028 page 1
RHBH/X04+08+16CA
Rotex HPSU low temperature Bi-Bloc
4P330419-1A – 2012.11