On-Site Connections On The Hbmu Heat Management Unit; Outside Temperature Sensor; Connecting The Cylinder Temperature Sensor - Viessmann Vitodens 050-W Installation And Service Instructions Manual

Electrical connections

On-site connections on the HBMU heat management unit

A
Fig. 17
Diaphragm grommets for cables
A

Outside temperature sensor

Fitting location for outside temperature sensor
North or north-westerly wall, 2 to 2.5 m above
■
ground level; in multi storey buildings, in the upper
half of the second floor
■ Not above windows, doors or vents
■ Not immediately below balconies or gutters
■ Never render over.

Connecting the cylinder temperature sensor

Connect cylinder temperature sensor to terminals
See page 24.
(cont.)
.
E
Open diaphragm grommets as required. Thread
■
through only one cable at a time without a plug.
Ensure diaphragm grommets are airtight. If required,
remove plug from cable. After threading the cable
through, refit the plug with wire ferrules.
■ For cables without strain relief bushings, provide
strain relief in the wiring chamber in the form of cable
ties.
Outside temperature sensor connection
See page 24.
2-core lead, up to 35 m long with 1.5 mm
tion
Installation sequence
2
cross-sec-
25