Power Supply - Viessmann VITOCAL 300-G PRO SPS Installation And Service Instructions Manual

Installation sequence
Overview of electrical connections
Danger
All sensor leads and 0-10 V sig-
nal leads must be shielded with
copper braiding and have a min-
imum cross-section of 0.5 mm
Sensor
Terminals Sensor
14X1 Temperature sensor, suc-
tion gas
Heat pump
Wired at the factory
14X2 Temperature sensor
Evaporator inlet
Wired at the factory
14X4 Temperature sensor
Evaporator outlet
Wired at the factory
14X5 Temperature sensor
Condenser inlet
Wired at the factory
14X7 Temperature sensor
Condenser outlet
Wired at the factory
15X3 Pressure transmitter
Low pressure
Heat pump
Wired at the factory
15X5 Pressure transmitter
High pressure
Heat pump
Wired at the factory

Power supply

Isolators for non-earthed conductors
■ The integral mains isolator must simul-
taneously isolate all non-earthed con-
ductors from the mains with a mini-
mum contact separation of 3 mm.
54
(cont.)
Specified lead type: CV.
2
.
Type
Pt1000 (PTC)
Pt1000 (PTC)
Pt1000 (PTC)
Pt1000 (PTC)
Pt1000 (PTC)
TRFG ND9
0...10 V
TRFG HD50
0...10 V
Danger
Incorrectly executed electrical
installations can result in injuries
from electrical current and in
appliance damage.