77
Instructions for the installer
Internal connections
DK: . . . . . . . . . . . . . . . pressure transducer
FL: . . . . . . . . . . . . . . . . Flow meter
SR1-SR2: . . . . . . . . . CH NTC temperature probe 10k Ohm a 25°C B=3435
S3S: . . . . . . . . . . . . . . DHW NTC 'IN' probe 10k Ohm a 25°C B=3435
SS: . . . . . . . . . . . . . . . DHW NTC 'OUT' probe 10k Ohm a 25°C B=3435
SRT: . . . . . . . . . . . . . . return NTC probe 10k Ohm at 25 °C B=3435
SF: . . . . . . . . . . . . . . . flue gas NTC probe 10k Ohm a 25°C B=3435
VG: . . . . . . . . . . . . . . . gas valve
PCS: . . . . . . . . . . . . . . solar circulation pump
SBS: . . . . . . . . . . . . . . solar water heater probe (PT1000)
SCS: . . . . . . . . . . . . . . solar collector probe (PT1000)
SVS: . . . . . . . . . . . . . . Solar valve probe (PT1000)
E: . . . . . . . . . . . . . . . . . ignition/flame detection electrode
V:. . . . . . . . . . . . . . . . . brushless fan
TF: . . . . . . . . . . . . . . . flue gas thermostat
P: . . . . . . . . . . . . . . . . . boiler pump
PWM:. . . . . . . . . . . . . PMW signal cable for circulation pump
PR1: . . . . . . . . . . . . . . zone 1 circulation pump - high temperature
PR2: . . . . . . . . . . . . . . zone 2 circulation pump - mixed zone
PR3: . . . . . . . . . . . . . . zone 3 circulation pump - mixed zone
MDV: . . . . . . . . . . . . . electric deviating valve
TSM: . . . . . . . . . . . . . mixed zone flow safety thermostat
SM: . . . . . . . . . . . . . . . flow NTC probe for mixed zone 10k Ohm at 25°C B=3435
ACC1: . . . . . . . . . . . . ignition transformer
X2-X7: . . . . . . . . . . . . ground connectors
0SCHEZON01: . . . . heating zones/solar PCB
Connections performed by the installer
1-2: . . . . . . . . . . . . . . . TA2 - Ambient thermostat 2
3-4: . . . . . . . . . . . . . . . OT or TA1 - Remote Control or ambient thermostat
5-6: . . . . . . . . . . . . . . . external probe (10K Ohm B=3977 at 25° C)
11-12: . . . . . . . . . . . . solar collector probe (PT1000)
13-14: . . . . . . . . . . . . ambient probe 1
15-16: . . . . . . . . . . . . ambient probe 2
TA: . . . . . . . . . . . . . . . TA3 - Ambient thermostat 3 (on 0SCHEZON01)
