10
x
Technical data
139
FA ROTEX HeatPumpSolarUnit - Part 2 - 05/2009
M1F
Motor upper fan
PHC1
Optocoupler input circuit
M2F
Motor lower fan
Q1DI
Contactor
MRM, MRC, MRW Magnet relay
Q1L
Thermal connector Backup Heater (BH)
PCB1...PCB2
Conductor board
Q2L...Q3L
Thermal connector Booster Heater (EHS)
PM1
Supply module
R1T
Temperature sensor (heat exchanger overflow water)
PS
Switching power supply
R2T
Temperature sensor (Backup Heater (BH) overflow
water)
Q1DI
Contactor
R3T
Temperature sensor Liquid side refrigerant)
Q1L...Q2L
Thermal circuit breaker
R4T
Temperature sensor (heat exchanger inlet water)
R1...R4
Resistance
R5T
Temperature sensor (water heating)
R1T
Temperature sensor (air)
S1L
Current switch
R2T
Temperature sensor (discharge)
S1S
Relay (ROTEX Solaris connection set)
R3T
Temperature sensor (inlet pipe)
SS2
DIP switch (hot water storage tank, room thermostat)
R4T
Temperature sensor (heat exchanger)
TR1
Transformer 24 V for conductor board
R5T
Temperature sensor (heat exchanger middle)
V1S...V2S
Suppression of sparks
R6T
Temperature sensor (Liquid side)
X1A...X517A
Plug connection
R7T
Temperature sensor (Cooling fin on model W1)
X1M...X4M
Terminal block
R10T
Temperature sensor (Cooling fin on model V3)
RC
Switching circuit signal receiver
S1...S102
Plug connection
S1NPH
High pressure sensor
S1PH
High pressure switch
SS2
DIP switch
SW1
Pushbutton enforced cooling
SW4
DIP switch
TC
Switching circuit signal transmission (on model V3)
V1R
Voltage module (on model V3)
V1R...V2R
Voltage module (on model W1)
V2R...V3R
Diode module (on model V3)
V3R
Diode module (on model W1)
V1T
Insulated bipolar transistor (on model V3)
X1M...X3M
Terminal block
X1Y
Plug connection
Y1E
Electric expansion valve
Y1S
4-W solenoid valve
Y3S
Solenoid valve (on model W1)
Z1C-Z9C
Noise filter
Z1F-Z4F
Noise filter
Tab. 10-7 Key names for connection and circuit diagrams
Key names
External units
Explanation
Internal units
Explanation
