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Méretek és súlyok
Súly	248	kg

Méretek

MRH Roof hatch Dimensions Mrh Dimensions 03

Type	ØD	ØD1	n x M*	A	A1	A2	B	B1	B2	GA	GB	HF	H	H1	SH, ~	SV, ~
MRH 800	800	860	16 x M8	1160	900	1220	1160	910	1200	1200	1200	700	1250	1410	185	850
* bolts
HG = 0 (lowest position of side bars) - alfa (pitch angle) = 0 - 12°; HG = 250 (middle position) - alfa = 0 - 12°; HG = 500 (upper position) - alfa = 0 - 2° or 20 - 31°
The side bars can be upon request ordered to meet specific roof pitch. More about side bar setting see instructions. MRH centreline deviation to vertical max. +/- 5°.

Bekötés

Diagrams 1, 2, 3a-3b (connection of electric motor in the fan`s service switch)

Lock the switch in position ON to prevent unintended switch OFF (lock is not in scope of delivery)

PS = Power supply (user)

Motors are without PTC. Thermal protection by user. In case of fire thermal protection must be bridged.

Depending on motor 3, 6, 8 pole switches with NO+NC are used. See details in instruction.

Diagram 1: M = 3~ AC motor with P2

Diagram 2: M = 3~ AC motor with P2 >=5,5 kW. Starting method: power supply in delta (D) connection at direct start (DOL).

Diagram 3a: M = 3~ AC motor with P2 >=5,5 kW. Starting method: star-delta starting (Y-D). PS in star (Y) connection at start only.

Diagram 3b: M = 3~ AC motor with P2 >=5,5 kW. Starting method: star-delta starting (Y-D). PS in delta (D) connection at operating.

MRH Roof hatch Wiring Wiring Mrh Axc Hatch00

Diagram 4: Functions and connection to actuator`s control box

Diagram 4a: Functions of the actuator`s service switch (NO-NC switch position control):

Position 0: stop (NO - opened contact, NC - closed contact) - SAFETY POSITION

Position 1: open hatch cover (NO - closed contact, NC - opened contact) - WARNING!

Position 2: close hatch cover (NO - opened contact, NC - closed contact) - DANGER!

Diagram 4b: Connection of power supply to actuator`s control box

Power supply L1 and L2 must be of the same AC source, frequency and phase shift! L1 and L2 must not be L1 and L2 of 3~ system!

Power shall not be supplied simultaneously to line L1 and L2.

Minimum time of 15 s pause required before changing the direction via L1, L2 or service switch (L1 - 0 - L2 or vice versa).

The control voltage L1 or L2 to open or close hatch cover should apply max. 6 minutes.

This is to ensure by control system (use actuator`s internal floating limit switches as indication of cover position to cut off the control voltage). More see instructions (current, intermittence).

Operating mode for peak load at 25°C ambient: S2 1 min.

Operating mode for continuous load at 40°C ambient: S3 5% (example: open in 30s, then wait 9min 30s).

Max. current of actuator(s) at SL 1000 (rated MRH load): 1,6 A (3,2 A at sizes 1120 and 1250).

Diagram 4c: Connection of actuator`s internal floating limit switches in the actuator`s control box to control hatch cover position

Drawn position - closed hatch (terminals 4, 5, 6 at MRH 1120-1250 only)

1-2 opened, 2-3 closed in closed hatch position

1-2 closed, 2-3 opened in opened hatch position

1-2 closed, 2-3 closed in any intermediary position of the hatch cover

1-2, 4-5 opened, 2-3, 5-6 closed in closed hatch position (MRH 1120-1250 only)

1-2, 4-5 closed, 2-3, 5-6 opened in opened hatch position (MRH 1120-1250 only)

1-2, 4-5 closed, 2-3, 5-6 closed in any intermediary position of the hatch cover (MRH 1120-1250 only)

Potentialfree NC contacts, load capacity 24VDC/1A

Systemair MRH 800

„Ne azt add nekem, amit kívánok, hanem azt amire szükségem van!” Antoine De Saint-Exupéry

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Méretek

Bekötés

„Ne azt add nekem, amit kívánok, hanem azt amire szükségem van!” Antoine De Saint-Exupéry