Carrier operating and maintanance Instrukcje Operacyjne Pobierz pdf (Strona 24)

10.11. Coolers

-Check the connections in accordance with the di-

mensional drawing.

-Control the connections for leaks.

-Check drain trap. If Alarko Carrier standard siphon

trap is used,check it has been correctly installed.

Check if siphon cover and ball have been correctly

installed.

-Check if the droplet eliminator after the cooler has

been correctly installed.

-Check if fins have been bent during transport. Cor-

rectly straighten the fins.

10.10. Siphon

It is advised to use siphon to have a constant water

drain at all the outlets of the cooling coil, humidifier

and other wet areas of the Air Handling Units.

Siphon application is very important not to have

air suction or leakage from these outlets and also

draining the water without overflow which may move

inside the unit.

Fo the sizing of the siphon, static pressure of the

location must be considered.

For the positive and negative pressures it is mandotary

to use different siphons (See Figure 53 and 54).

Before start up the unit fill, the positive pressure

siphon with water.

Negative pressure siphon may only be applicable for

negative drainage. Negative pressure siphon can be

set up as in Figure 53. In Figure 55, parts and mon-

tage order of siphon are given.

The ball inside the negative pressure siphon pro-

vides drained water fill the siphon by preventing air

suction.

PRESSURE

Water drain direction marked with an arrow on the

negative pressure siphon.

Application types according to the pressure and

siphon types are shown in Figure 56.

Air Handling Unit base frame height can either be 62

mm. or 160 mm. There is no need to make an extra

base for the AHUs with 160 mm. base frame.

For 62 mm. base frames, a base shown in Figure 54

is necessary. The constructed base should be leveled

and balanced

For AHU with NPU profile concrete base requirement

and height must be checked and AHU installation

area must be prepared acoording to the above ex-

planations.

Figure 55.

Figure 53.

- Negative pressure siphone

Figure 54.

- Positive pressure siphone

Figure 56.

R=(P/10) - 30

P [Pa] : Cihaz içi negatif basnç. (-) işareti kullanlmadan hesap yaplmal.

R [mm] : Yoğuşma tavas boru çkşnda, borunun alt noktasndan zemine olan mesafe.

Formülle bulunan R değerinin daha büyük olarak ayarlanmasnda herhangi bir saknca yoktur.

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