Pereko KSM 17, Operation And Maintenance Manual

Page: 53 / 104

29
Wiring diagram - modules B and C: T1 – mixer 2 or 4 temperature sensor CT4, T2 –
mixer 3 or 5 temperature sensor CT4, T3 – upper temperature sensor of the buffer, T4 –
lower temperature sensor of the buffer CT4, T5 – reserve, RE – relay (12V, max 80mA) to
connect reserve boiler R, alarm AL, boiler shunt pump PP, or HUW circulating pump PC , T –
room thermostat, R – reserve boiler, AL – alarm annunciator, PP – boiler shunt pump to
protect boiler return , PC – HUW circulating time, B – extension module (two heating
circuits, heat buffer, HUW circulating time), C (MX.03) – extension module (two additional
heating circuits), power supply cable, 230V AC , PM – mixer pump, SM – mixer servo, PC –
HUW circulating time, * - HUW circulating pump available in module C from software
version
mod_A_v.01.31.21, GR – ground strip.