Soler & Palau UTBS PRO-REG ECOWATT Handleiding (96 Pagina's)

Handleiding

31

7.8. DIRECT EXPANSION COILS CONNECTION DX

Coil characteristics

DX 4 rows coil

For applications with 100% recirculated air

UTBS Volume

(l)

Phases Tubes Rows Circuits Ø Liquid

header

(mm)

Ø Gaz

header

(mm)

Cooling

power

(kW)

Heating

power

(kW)

Airﬂ ow

(m

3

/h)

UTBS2 1,2 1 10 4 2 1/2" (13mm.) 3/4" (19mm.) 4,6 4,9 1.250

UTBS3 2,21 1 12 4 4 5/8" (16mm.) 3/4" (19mm.) 8,8 8,0 2.500

UTBS5 2,41 1 12 3 5 5/8" (16mm.) 3/4" (19mm.) 10,9 10,0 3.500

UTBS8 4,4 1 15 3 7 5/8" (16mm.) 3/4" (19mm.) 19,9 17,2 6.000

DX 6 rows coil

For applications with 50% outdoor air/ 50% recirculated air

UTBS Volume

(l)

Phases Tubes Rows Circuits Ø Liquid

header

(mm)

Ø Gaz

header

(mm)

Cooling

power

(kW)

Heating

power

(kW)

Airﬂ ow

(m

3

/h)

UTBS2 2 1 10 6 5 5/8" (16mm.) 3/4" (19mm.) 10,0 10,5 1.250

UTBS3 3,31 1 12 5 6 5/8" (16mm.) 3/4" (19mm.) 19,4 19,9 2.500

UTBS5 4,3 1 12 5 9 5/8" (16mm.) 7/8" (22mm.) 26,6 27,6 3.500

UTBS8 8,4 2 15 6 10+10 5/8" (16mm.) 7/8" (22mm.) 47,8 49,8 6.000

Installation recommendations

In units that incorporate direct expansion coils it is necessary to consider the following

installation recommendations:

1. The rigidity and stability of the installation ducts, should be ensured using, if necessary,

expansion joints and antivibration elements, avoiding the generation of stress due to the

transmission of vibrations to the distributor and suction headers.

2. When making the refrigerant circuits, allow free space enough to allow a right access for

maintenance tasks.

3. The connection to the suction line (liquid) should be done from the smaller diameter

manifold (recognizable because of the distributor), The gas line has to be connected to

suction header (larger diameter manifold).

4. The dimensioning and manufacture of the refrigerant installation must be performed by

qualiﬁ ed personnel with speciﬁ c training in refrigeration techniques (authorized insta-

llers), paying particular attention to:

- Evaporative coils are supplied with sealed ends without refrigerant charge or nitrogen load.

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