Signal Names With Z

Z1_A Ventilating-flap motor, coil 1, A
Z1_E Ventilating-flap motor, coil 1, E
Z2_A Ventilating-flap motor, coil 2, A
Z2_E Ventilating-flap motor, coil 2, E
ZB+ Firing box +
ZB- Firing box -
ZSK Ignition key in lock
ZUGB Forced switchover, gas/petroleum
ZUSL1 Auxiliary blower, speed 1, via relay
ZUSL2 Auxiliary blower, speed 2, via relay
ZUSL2U Pwr supply, aux. blower, sp. 2, unfused
ZWP Auxiliary water pump