CL 1540

CL 1540 is used when the ceiling is flat.

CL 1540 ceiling inlet is a universal air inlet, which brings fresh air into the house through the attic. CL 1540 ceiling inlet is insulated.
Is supplied incl. operation kit, Advanced Inlet Control and one CL 1540 clamp for pull rod.
To be used when the ceiling pitch is 0°.
The inlet funnel must be ordered separately if required.

CL 1540 HP

The CL 1540 HP has more powerful springs, so it can be used for ceiling pitches up to 15°.

CL 1540 HP ceiling inlet is a universal air inlet, which brings fresh air into the house through the attic. CL 1540 HP ceiling inlet is insulated.
Is supplied incl. operation kit, Advanced Inlet Control and one CL 1540 clamp for pull rod. CL 1540 HP has a reinforced spring compared to CL 1540 and thus poses a significantly increased winch motor load.
To be used when the ceiling pitch is between 0° and 15°.
If high-pressure cooling is installed, see Technical user guide for high-pressure cooling rearding cooling pipe suspension in the ceiling.
The inlet funnel must be ordered separately if required.

CL 1500/1800 inlet funnel - short

CL 1540/1800 inlet funnel - long

The purpose of using the inlet funnel is partly to increase the incorporation height of the inlet to a total of 250/400 mm from the lower edge of the ceiling to the upper edge of the inlet funnel. Furthermore, the aerodynamic design of the inlet funnel ensures optimized inflow conditions which reduce the pressure loss and thus the energy loss at a given amount of air. This reduces the necessary negative pressure in the house.

Use one unit per inlet.

CL 1500/1800 pipe holder

For CL 1540/1800 ceiling inlet a special pipe hanger has been developed, which can be used for securing high pressure cooling pipes from Big Dutchman, if high pressure cooling is installed. The pipe holder can only be used when the ceiling pitch is 0°.

Use one unit per inlet.

If the distance between the inlets exceeds approx. 1.5 m supplement the inlet by item CL 1540/1800 pipe holder with adapter.

If the length of the cooling piping exceeds 40 m, the pressure impact from the start/stop of pump may cause breakage of the rather long pipe holder.

CL 1540/1800 pipe holder with adapter - 0.5 m

Used where extra support of the cooling pipe is required. Height approx. 49 cm which means that it is suited for the pipe holder for CL 1540/1800. The pipe holder can only be used when the ceiling pitch is 0°.

Mount it directly on the ceiling with the two screws supplied.

In Denmark one unit per 1.2 m free-hanging cooling pipe is used - corresponding to normal lath distance.

If the length of the cooling piping exceeds 40 m, the pressure impact from the start/stop of pump may cause breakage of the rather long pipe holder.

All-purpose holder for pull rod

Is applied if the distance between the inlets exceeds 2 m. The distance from the ceiling to the pull rod is 6.5 cm when the all-purpose holder is mounted.

Mounted vertically with two screws in the ceiling.

Pull rod M8x5500 galv. incl. sleeve

The pull rods are 5.5 m long and the number of pull rods can be determined using the table below. Please note that house length means the length of the inlet row in those cases when the pull rods go across the house.

Determine the number of pull rods.

One side with inlets in one row = 1 x house length / 5.5
One side with inlets in two rows = 2 x house length / 5.5

Two sides with inlets in one row = 2 x house length / 5.5
Two sides with inlets in two rows = 4 x house length / 5.5

Coil spring Ø30 x 300 mm stainless

If the CL 1540 inlet is used with the CL 75A winch motor it is necessary, besides the standard mounting set, to order one extra coil spring per inlet row.

Two coil springs are necessary in continuation of each other due to the long tensile length. The standard mounting set contains only one coil spring per inlet row.