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4
x
Splitgeräte 4 bis 8 kW mit R32
NOTES to go through before starting the
unit
X1M
: Main terminal
X2M
: Field wiring terminal for AC
X5M
: Field wiring terminal for DC
X6M
: BUH Power supply terminal
X7M, X8M
: BSH Power supply terminal
: Earth wiring
: Field supply
: Several wiring possibilities
: Option
: Wiring depending on model
: Not mounted in switch box
: PCB
LEGEND
Part n°
Description
A1P
main PCB
A2P
*
ON/OFF thermostat (PC = power circuit)
A3P
*
heat pump convector
A4P
*
digital I/O PCB
A8P
*
demand PCB
A9P
status indicator
A10P
MMI PSU PCB
A11P
MMI display PCB
A12P
MMI display PCB
A13P
*
LAN adapter
A14P
*
user interface PCB
A15P
*
receiver PCB (wireless ON/OFF thermostat)
B1L
B1PR
refrigerant pressure sensor
B1PW
water pressure sensor
BSK (A3P)
solar pump station relay
CN* (A4P)
*
connector
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)
E*P (A9P)
indication LED
F1B
#
overcurrent fuse backup heater
F2B
#
overcurrent fuse booster heater
F1T
thermal fuse backup heater
F1U, F2U (A4P)
*
fuse 5 A 250 V for digital I/O PCB
FU1 (A1P)
fuse T 6.3 A 250 V for PCB
FU2 (A10P)
fuse T 1.6 A 250 V for PCB
K1M, K2M
contactor backup heater
K3M
*
contactor booster heater
K5M
safety contactor BUH
K*R (A1P, A4P)
relay on PCB
Bild 4-28
38
NOTE 1: Connection point of the power
supply for the BUH should be foreseen
outside the unit.
Backup heater
1N~, 230 V
power supply
3~, 230 V
3N~, 400 V
User installed options:
LAN adapter
Domestic hot water tank
Remote user inteface
Ext. indoor thermistor
Ext. outdoor thermistor
Digital I/O PCB
Demand PCB
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
Part n°
M1P
M2P
M2S
M3S
P1M
PC (A15P)
PHC1 (A4P
Q1L
Q2L
Q4L
Q*DI
R1H (A2P)
R1T (A1P)
R1T (A2P)
R1T (A14P)
R2T (A1P)
R2T (A2P)
R3T
R4T
R5T
R6T
S1S
S2S
S3S
S6S-S9S
SS1 (A4P)
SW1~2 (A12P)
SW3~5 (A12P)
TR1
X6M
X7M, X8M
X*, X*A, J*, X*H*, X*Y
X*M
POSITION IN SWITCH BOX
*
: optional
Description
main supply pump
#
domestic hot water pump
#
2 way valve for cooling mode
*
MMI display
*
power circuit
*
optocoupler input circuit
thermal protector backup heater
*
thermal protector booster heater
#
safety thermostat
#
earth leakage circuit breaker
*
humidity sensor
outlet water heat exchanger thermistor
*
ambient sensor ON/OFF thermostat
*
ambient sensor user interface
outlet backup heater thermistor
*
refrigerant liquid side thermistor
inlet water thermistor
domestic hot water thermistor
*
external indoor or outdoor ambient thermistor
#
preferential kWh rate PS contact
#
electrical meter pulse input 1
#
electrical meter pulse input 2
*
digital power limitation inputs
*
selector switch
turn buttons
push button
power supply transformer
#
BUH power supply terminal strip
BSH power supply terminal strip
connector
terminal strip
PH ROTEX HPSU/HPU - 03/2019
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