User Manual
74 319 0726 0
G2515
en
Installation Instructions
District heating controller for
2 heating circuits and d.h.w.
RVD260
Keep these instructions with the controller!
Installation
Place of installation
• In a dry room, e.g. the heat exchanger room
• Installation choices:
– In a compact station
– In a control panel (panel front, inner wall, or
on a top hat rail)
– In a control cabinet
– In the sloping front of a control desk
• Permissible ambient temperature: 0...50 °C
Electrical installation
• Local regulations for electrical installations must be
complied with
• Only qualified personnel may carry out the electrical
installation
• Cable strain relief must be ensured
• Cable glands used must be made of plastic
• Cables from the controller to the actuating devices
and pumps carry mains voltage
• Sensor cables must not be run parallel to mains
carrying cables (safety class II to EN 60730)
• A defective or damaged device must immediately
be disconnected from power
Permissible cable lengths
• For all sensors:
Copper cable 0.6 mm dia. max. 20 m
Copper cable 1.0 mm
2
max. 80 m
Copper cable 1.5 mm
2
max. 120 m
• For room units:
Copper cable 0.25 mm
2
max. 25 m
Copper cable from 0.5 mm
2
max. 50 m
• For data buses: According to Siemens
specification in:
LPB Basic System Data N2030 and
Basic Engineering Data N2032
M-bus System Data N5361 and
Planning Manual J5361
Mounting and wiring the base
Wall mounting
1. Remove base from the controller.
2. Hold base against the wall. Marking TOP must
be at the top!
3. Mark fixing holes on the wall.
4. Drill the holes.
5. If required, knock out holes on the base to fit
cable glands.
6. Screw base to the wall.
7. Wire up the base.
Rail mounting
1. Fit top hat rail.
2. Remove base from the controller.
3. If required, knock out holes on the base to fit
cable glands.
4. Fit base to the rail. Marking TOP must be at the
top!
5. If required, secure the base (depending on the
type of rail used).
6. Wire up the base.
Flush-panel mounting
• Maximum thickness of front panel: 3 mm
• Required panel cutout: 138 × 92 mm
1. Remove base from the controller.
2. If required, knock out holes on the base to fit
cable glands.
3. Insert base in the panel cutout from behind until
stop is reached. Marking TOP must be at the top!
4. Push lateral tongues behind the front panel (see
illustration).
2462Z06
Wrong Correct
Place left and right tongue correctly – they must not protrude
inside the cutout!
5. Wire up the base. The cable lengths should be
chosen such that sufficient space is left to open
the control panel door.
Securing the controller to the base
1. Ensure correct position and location of the levers
by turning the fixing screws. Symbol on the lateral
wall of the controller:
2540Z04
2. Insert controller in the base until stop is reached.
Marking TOP must be at the top!
3. Tighten the fixing screws alternately.
Siemens Building Technologies 74 319 0726 0 a CE1G2515en 13.08.2010 1/16