Emerson ALCO CONTROLS Thermo TI Serie Instructions De Montage

Thermo
General information and technical data

TI series of Thermo -Expansion Valves are
designed for refrigeration, heat pump and air
conditioning with suitable charges for the following
refrigerants:
Refrigerant Type of valve
R22: TI..-H...
R134a: TI..-M...
R404A/R507 TI..-S...
R407C: TI..-N...
R410A: TI..-Z...
Medium temperature range TS: -45 to 70°C
Fluid group: II
Refrigerants: CFC, HCFC, HFC
Maximum working pressure PS: 45 bar
Factory test pressure: 49.5 bar
Hazard category: SEP (PED 97/23/EC)
Marking: CE not allowed;
Connection DN:
Valve Inlet Outlet
TILE/ 1/2" &
5/8"-18UNF 12mm ODF
TISE
Flare
3/4"-16UNF
TIE
Flare
Brazing adapter with copper washer for inlet (size):
TIA-M06 6 mm TIA-014
10 mm
TIA-M10 TIA-038
Maximum bulb temperature for liquid charges:
Liquid Charge Maximum bulb temperature
MW 100 °C
SW 85 °C
HW/NW 90 °C
ZW 60 °C
!
Safety instructions
• Read installation instruction
Failure to comply can result in device failure,
system damage or personal injury.
• Before opening any system make sure pressure
in system is brought to and remains at
atmospheric pressure.
• Do not use any other fluid media without prior
approval of ALCO Controls. Use of fluid not
listed could result in:
Change of hazard category of product and
consequently change of conformity assessment
requirement for product in accordance with
European pressure equipment
97/23/EC.
Installation
1. Valves may be installed in any direction, but
should be located as close as possible to the
distributor or evaporator inlet.
Table 1: Superheat changes (K) for one full turn of adjusting stem
Evaporating temperature °C
-45 -40 -35 -30 -25 -20 -15 -10
R 134a 7.8 6.5 5.4 4.6 3.9 3.3 2.8 2.4 2.1 1.8 1.6 1.4
R 22 4.5 3.8 3.2 2.8 2.4 2.1 1.8 1.6 1.4 1.2 1.1 1.0
R 404A 3.7 3.1 2.7 2.3 2.0 1.7 1.5 1.3 1.2 1.0 0.9 0.8
R 407C 5.1 4.2 3.5 3.0 2.5 2.2 1.9 1.6 1.4 1.2 1.1 1.0
R 507 3.6 3.0 2.6 2.2 1.9 1.7 1.4 1.3 1.1 1.0 0.9 0.8
R 410A 2.9 2.4 2.1 1.8 1.5 1.3 1.1 1.0 0.9 0.8 0.7 0.6
TI___65157__R03.doc
Installation Instructions
®
-Expansion Valve TI series
2. Be sure liquid line is connected to inlet of TI valve
after inserting orifice including strainer into the
valve (Fig 1).
3. Flare connections:
For flare joints the following subjects need to be
considered:
- Proper torque for fastening the nuts as follows:
Inlet: 40 to 50 Nm
Outlet: 50 to 60 Nm
External equalizer: 17 to 20 Nm
- Using a nut according DIN/EN/SAE/ANSI
standards.
- Shape of tube end must be in 45° angle, straight
edge, clean without swarf (Fig 3 and 4)
- Apply a few drops of refrigeration oil on surfaces
of angled tube before fastening.
Failure to do so it will not provide the proper
tightness.
Warning: If a leakage is detected at specified
torque, the flare edge and nut must be examined for
correctness. A torque over the specified value may
Ext. Equaliser
not stop the leakage. Do not over torque the nut at
1/4''& 6mm
the inlet connection. The orifice would be jammed
ODF
inside of valve and will cause an erratic function of
7/16"-20UNF
valve.
Flare
4. Brazing connections TILE (Fig 5)
TILE with stainless steel does not require any wet
rag during brazing. It is important to consider the
1/4"
following subjects:
3/8"
- Use of flux and silver rod having minimum 30%
silver
- Direct torch away from valve
5. Brazing connections TIS(E) (Fig 6):
Wrap wet rag around the valve to prevent valve
damage while brazing. Direct torch away from
valve body (max. temp. see Fig. 6).
6. Assembling of TIA Brazing adapter (Fig. 1-2):
Use supplied copper washer as shown in Fig. 1.
Make sure that the surface of brass orifice (see
arrow 1 on Fig. 1) is scratch/damage free and
thoroughly.
apply a few drops of refrigeration oil.
The proper torque for fastening the nut of adapter:
40 to 50 Nm
7. Unwind the capillary tube. Do not bend the
capillary tube at brazing joint. Allow space on top
of valve head bending (Fig. 1).
8. Securely fasten the bulb with provided strap.
Insulate bulb with suitable material against
environment (Fig. 7).
9. Be sure that the external equalizer line cannot
siphon oil from the suction line.
10. The expansion valve must be free of all
directive contaminants. Install an ALCO Filter Drier
before the valve.
11. Check for leaks, sufficient refrigerant charge
and be sure no flash gas is present before
attempting to check valve operation.
Leakage test:
-5 0 5 10
Replacement for 02
Emerson Electric GmbH & Co. OHG
GB
Heerstr.111 – D-71332 Waiblingen
Tel.: 07151 509-0 - Fax.: -200
www.emersonclimate.eu
• After completion of installation, a test pressure
must be carried out as follows:
Proper operation of Gas charges
Warning: Valves with gas charge feature MOP
function and operate properly only if the
temperature at the bulb is below the temperature
at the head of the valve and at the capillary tube
(see Fig. 8). If valve head becomes colder than the
bulb, malfunction of the expansion valve occurs
(i.e. erratic low pressure or excessive superheat).
Superheat Adjustment (Fig. 9)
Proceed as follows if the superheat need the
readjustment:
1. Remove seal cap from side of valve.
2. Turn the adjustment screw clockwise (+) to
3. Determine superheat "SH" according to Fig. 9.
4. Replace and hand tighten seal cap.
Warning: There are max. 11 turns on the
adjustment stem (from one end to other end).
When stop is reached any further turning will
damage the valve.
See Fig. 10 for factory setting stem position:
Attention!: TILE-ZW (R410A) may require the
increase of factory static superheat setting for low
temperature refrigeration applications such as
freezers.
TI valves with standard charge for alternative
refrigerants
It is possible to use a valve with standard charge in a
system having alternative refrigerants when the
following criteria is taken into the account:
• Static
readjustment of valve
• Opening superheat changes after readjustment
valve
• Slight shifting of MOP value (if available)
The magnitude of shifting/changes is dependant on
the saturation pressure of a designed charge vs.
alternative
temperature (see table 2).
Table 2: Superheat Readjustment for alternative refrigerants
Standard Charge alternative
(refrigerant) refrigerant
MW (R134a) R413A
SW/SAD (R404A) R507
R422A
HW/HAD (R22) R422D
Date: 20.07.2009
- According to EN378 for systems which must
comply with European pressure equipment
directive 97/23/EC
- To maximum working pressure of system for
none European installation.
increase the superheat and counterclockwise (-) to
decrease superheat. Changes in Superheat (K) per
stem turn depending on evaporating temperature
and refrigerant (see table 1). As much as 30
minutes are required for the system to stabilize
after the adjustment is made.
1. turn in (–) direction until Stop is reached
2. turn in (+) direction according to table (full
turns)
superheat shifting
refrigerant at certain
Evaporating temperature
-40 -30 -20
Number of turns
1 1
- - / - /
4 3
1 3
-1 / -1 - /
4 4
1 1 3
+ / + / + /
2 2 4
1 3 3
+ / + / + /
2 4 4
and therefore
evaporating
-10 0
1 3
- / - /
2 4
1 1
- / - /
2 2
3 3
+ / + /
4 4
3 3
+ / + /
4 4
PCN 865884