5
3. Assembly and installation
Controller installation
G
De-energise all parts of the system that are to be worked on and
ensure that they cannot be reconnected without authorisation!
G
Consider the protection class of the controller before selecting where it
should be mounted (See the technical data)!
G
The (wall-mounted) unit must only be installed on a flat surface.
G
Before installing it, remove the plate covering the screws shown in Fig.
1 and unscrew the screws. Remove the terminal block cover. The spacing
between the drill holes is indicated on the back of the casing.
G
Screw the device onto the wall and then replace the terminal block
cover. Replace the screw covers.
Installing the room temperature sensor
The room temperature sensor records the temperature at the place of
installation. For this reason, select the place of installation so that the
temperature measurement process is not hindered.
The unit should be mounted approx. 1.5 – 2 m off the floor. The units
should not be mounted:
- on poorly-insulated exterior walls,
- right next to doors and windows (because of draughts),
- behind curtains or furnishings,
- in direct sunlight,
- in the current of air emitted by the heaters,
- above or near to other external sources of heat, such as radiators, TV
sets, lamps, etc.
Please observe the permissible sensor cable length!
(See page 6: Installing the Cables)
2-Stage, Three-Phase Controller
1.96
With Timing Switch and Room Temperature Controller, Type 30277
Operating instructions
Fig. 1: Opening the unit
Fig. 2: Installing the room
temperature sensor
2-Stage, Three-Phase Controller
1.96
With Timing Switch and Room Temperature Controller, Type 30277
Summary of Contents for 30277
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