Hitachi YUTAKI Series - Mounting on a DIN-Rail; Mounting the Sensors; Water Temperature Sensor

111
Mounting the Sensors
SMGB0066 rev.0 - 12/2009
Controller pack
Service Manual
4
- Forwireentry,removetheappropriatebreak-outsinthemountingbox(B).
- Use screws (max diameter 4mm) and wall plugs suitable for the wall material (not included in the delivery).
 
- The system controller can easily be clicked on to a DIN-rail via the locating clips on both sides of the mounting base.
Holdthesystemcontrolleratanangle,andhookontothetopoftheDIN-rail.1.
Push the system controller straight and against the DIN-rail.2.
The locating clips will snap on the bottom of the DIN-rail.3.
Forremoval,bendtheclips4.  and pull off the system controller from the DIN-rail .

 
The water temperature sensor can be inserted into a suitable immersion well or strapped on to a pipe using the supplied
metal clip.

note
For strap-on mounting, the metal clip must be used and tightened rmly to provide a good thermal connection. A -
badly-mounted sensor can cause control problems.
Thebestlocationformeasuringthetemperatureand,therefore,insertingthesensor,istheimmersionwellforboiler
temperaturedisplays,boilerthermostat,andsafetemperatureguard.Thereisusuallyspaceforthesensorinthiswell
(sensorcartridge:6.5mmØ,50mmlong).
Inordertohavegoodheattransmissionbetweenthesensorcartridgeandtheimmersionwell,thecontactstripsupplied
mustbeinsertedalongwiththecartridge.Ifthereisnospaceinthewellforthesensor,anotherseparatewellcanbeused
near the aforementioned immersion well.