Manual Siemens RLM162 (page 3 of 20) (English, German, Dutch, Danish, French, Italian, Polish, Swedish, Spanish)

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Siemens Building Technologies CE1G3332xx 2015-03-06 3/20

 In the supply air duct downstream from the supply air

fan if fan is installed after the last air handling unit,

otherwise

 In the supply air duct downstream from the last air

handling unit in a distance of 0.5 m

 As a minimum supply air temperature limiter:

In the supply air duct as close as possible to the air dis-

charge into the room

 As a dewpoint controller:

Immediately downstream from the droplet separator of

the air washer

Mounting

Procedure:

1. First mount the flange. For drilling holes, refer to “Di-

mensions”.

2. Bend flexible sensing element manually (never use a

tool) so that – when mounted – it stretches diagonally

across the air duct .

Note! The flexible sensing element may not touch the

duct wall: The minimum clearance is 50 mm and the

smallest permissible bending radius 10 mm

3332Z03

3. Fit mounting flange.

4. Slide controller on mounting flange and snap it on.

Electrical installation

 Ensure that the local regulations for electrical installa-

tions are complied with

 The connecting terminals are located under the flexible

plastic cover

 Make wiring according to the plant documentation. If not

available, use the connection diagrams contained in

these Installation Instructions

 Observe the permissible cable lengths

 Switch on power only when commissioning the controller

 External preliminary protection with max. C 10 A circuit

breaker is required in all cases

Settings

23 5

3332P02

1 LED for test mode / normal operation

2 DIP switch block

3 Setting slider for setpoint increase or decrease

4 Setting potentiometer for the relay Q13–Q14

5 Setting potentiometer for the P-band

5 Temperature setting slider for setpoint or limit value

Operating action:

Where? What?

DIP switch block,

switches no. 1 and 2

1 2

Heating and cooling in sequence

Two-stage heating

Single-stage cooling

Single-stage heating

Control mode and integral action time:

DIP switch block,

switches no. 3 and 4

3 4

P-mode

PI mode, integral action time = 600 s

(SLOW)

PI mode, integral action time = 120 s

(FAST)

PI mode, integral action time = 180 s

(MEDIUM)

Test mode:

DIP switch block,

switch no. 5

Test mode

Normal operation

Outside temperature compensation:

DIP switch block,

switch no. 6

HIGH

LOW

Switching contact Q13–Q14:

Potentiometer 4 Potentiometer setting should correspond to the re-

quired switching point of output relay Q13–Q14

P-band Y1 (not adjustable for Y2):

Potentiometer 5 Potentiometer setting should correspond to the re-

quired range of the controller’s output signal

Setpoint increase / decrease:

Slider 3

Setpoint or limit value (supply or extract air temp.):

Temperature setting

slider 6

Adjust after commissioning

Indication of operating state

The red LED indicates the controller’s operating state:

 LED lit: Mains voltage present

 LED flashes: In test mode

The LED is also visible when the cover is fitted.

Commissioning

When used as a controller

1. Remove housing cover.

2. Lift flexible plastic cover so that you can access the

setting elements.

3. Make the settings:

 Operating action (DIP switches 1 and 2)

 Control mode and (with PI mode) integral action

time (DIP switches 3 and 4)

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Siemens RLM162 Manual

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