Swegon BLBd Manuale utente

BLBd

Installation – Commissioning – Maintenance 20210331

Maintenance

The mixing box is equipped with an inspection cover

made of plexiglas. The motor is coupled to the mixing

box damper blade via connecting rods and a spindle

that extends into the mixing box through a brass bush.

The inspection cover can be dismantled, as required. It is

advisable to switch off the ventilation before you disman-

tle the inspection cover.

Check the linkage system between the motor and the

damper blade. Make sure that all the parts are in place

and that screws have not come loose.

The spindle and the brass bush should be checked at

regular intervals. Make sure that the spindle runs easily

through the brass bush. Whenever the need arises the

spindle should be cleaned with appropriate degreasing

agent; then it should be oiled with a thin oil ﬁlm and

wiped dry of any excess oil.

The respective service function staff must determine the

time interval for inspection. This depends on how clean

the supply air is and how the ambient environment looks.

We recommend inspection at least once a year.

We recommend lubricating the spindle with a foodstuff-

classiﬁed penetrating maintenance oil, such as Omega

638 food grade 4.

REACT

LUNA RE-S MB BLB

BLB

Figure 1. Description of the function of the BLB for an electric

control system in combination with the REACT and LUNA RE-S

MB BLB.

Figure 2.

1. Brass bush

2. Spindle

3. Connecting rods

4. Plexiglas

BLB

2Swegon reserves the right to alter specications. 201210331

Wiring diagram for electric damper actuator

Connect the control signal from the room regulator to

input Y (wire marked 3). Output U is a true value signal.

Design power consumption: 5 VA, applies to BLB motor

and LUNA RE-S MB BLB.

Dimensions and weights

Size Dimensions (mm)

A B C1 ød D E F V

100 210 260 139 99 198 79 60 30

125 210 310 139 124 232 94 60 30

160 210 385 139 159 284 115 60 30

200 250 450 139 199 338 136 60 30

250 300 550 139 249 406 161 60 30

315 365 660 271 314 498 194 60 30

400 450 830 271 399 612 239 60 30

Size Weight (kg)

BLB-0 / BLB-1

100 4,9

125 5,5

160 7,0

200 8,4

250 11, 3

315 18,0

400 25,0

Electric actuator control signals

The diagram below shows the mixing damper blade

position in relation to the control signal, electric. 100%

denotes full cooling. 0% denotes full heating. For the best

control, the room regulator should be set for mixing box

control, i.e. have its neutral position at 5V. On the LUNA

RE-S MB BLB, this function can be selected using the

LUNAd T-CU hand-held terminal. See the commissioning

instructions for the LUNA RE-S MB BLB.

Figure 4. Dimensions, BLB.

Figure 3. Wiring diagram, BLB with electric motor.

Modbus

24 V AC/DC

1234

(-) (+)

1234

Cool

CondTemp

(-)

(+)

Modbus

24V Heat

Cool

0-10V

(+) (-) Heat

0-10V

BLB

LUNA RE-S MB BLB

(Room regulator)

Indice

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