Emerson Thermo TX3 Serie Instrucciones De Instalación

Thermo
Technical Data:
• evaporating temperature range see Fig. 1
• max. working pressure 43,8 bar
• superheat adjustable
• Marking:
!
Safety instructions
• Read installation instruction
Failure to comply can result in device failure,
system damage or personal injury.
• It is intended for use by persons having the
appropriate knowledge and
opening any system make sure pressure in
system is brought to and
atmospheric pressure.
• Do not leak any refrigerant
atmosphere.
• Do not use on service conditions or fluids not
specifically cataloged, without prior approval of
Alco Controls.
Fig. 1:
Charge Refrigerant
Liquid (no MOP) R 22, R 404A, R 507
Liquid (no MOP) R 134a, R 407C
Liquid (heat pump) R 22
MOP 3.3 bar R 134a
MOP 6.4 bar R 22
MOP 6.4 bar R 407C
MOP 2.3 bar R 404A
MOP 2.3 bar R 507
MOP 12.9 bar R 410A
TX3__65011__R06.doc
Installation Instructions
®
-Expansion Valve TX3
Installation (Fig. 2, 3, 4, 5)
1. Valves may be installed in any position, but
should be located as close as possible to the
distributor or evaporator inlet.
2. Be sure liquid line is connected to inlet of TX3
(marked "IN" on valve body).
3. Install line connections to valve. Wrap wet
cloths around e valve to prevent valve damage
while brazing. Direct torch away from valve
thoroughly.
(max. temp. see Fig. 2).
4. Attach the remote bulb to the suction line
(Fig. 5) as close to the evaporator outlet as
possible. Securely fasten the bulb with straps
skill. Before
provided. Insulate bulb with a suitable material.
5. Connect equalizer line (1/4" or 6mm tube) to
remains at
valve and suction line. Be sure that it cannot
siphon oil from the suction line (see Fig. 3).
into the
6. The expansion valve must be free of all
contaminants. Install an ALCO Filter Drier
before the valve.
7. Check for leaks, sufficient refrigerant charge
and be sure no flash gas is present before
attempting to check valve operation.
Fig. 7: Superheat changes (K) per stem turn
Recommended
evaporating temp.
range °C
R 134a
-45 .. +20
R 22
-25 .. +20
R 404A
-35 .. +20
R 407C
-25 .. +9
R 507
-45 .. +10
R 410A
-25 .. +12
-45 .. -21
-45 .. -20
30 .. +17
Replacement for 05
Emerson Electric GmbH & Co. OHG
GB
Heerstr.111 – D-71332 Waiblingen
Tel.: 07151 509-0 - Fax.: -200
www.emersonclimate.eu
Evaporating temperature
-45°C -40°C -35°C -30°C -25°C -20°C -15°C -10°C -5°C
- - - - 4,8
5,6 4,7 4,0 3,4 2,9
4,6 3,9 3,3 2,9 2,5
- - - - 3,1
4,5 3,7 3,2 2,7 2,4
3,5 3,0 2,5 2,2 1,9
Date: 23.07.2009
Superheat Adjustment (Fig. 6,7)
TX3 is factory set to a standard setting (s. technical
data). If the superheat must be adjusted proceed as
follows:
1. Remove seal cap from bottom of valve.
2. Turn adjustment screw clockwise to increase
and counterclockwise to decrease superheat.
Warning: There are approx. 13 turns on the
adjustment stem (from left to right stop).
When stop is reached any further turning
will damage valve. Changes in superheat (K)
per stem turn depending on evaporating
temperature and refrigerant see Fig. 7. As much
as 30 minutes are required for the system to
stabilize after the adjustment is made.
3. Determine superheat according to Fig. 6.
4. Replace and tighten seal cap (hand-tighten).
0°C
4,1 3,5 3,0 2,6 2,3
2,5 2,2 1,9 1,7 1,5
2,1 1,9 1,6 1,4 1,3
2,7 2,3 2,0 1,7 1,5
2,1 1,8 1,6 1,4 1,3
1,6 1,4 1,2 1,1 1,0
5°C 10°C
2,0 1,8
1,3 1,2
1,1 1,0
1,3 1,2
1,1 1,0
0,9 0,8
PCN 861693