Emerson TI series Betriebsanleitung

G e n e r a l i n f o r m a t i o n :
™
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...
R448A/R449A TI...-BW...
S a f e t y I n s t r u c t i o n s :
• Read operating instructions thoroughly. Failure
to comply can result in device failure, system
damage or personal injury.
• According to EN 13313 it is intended for use by
persons having the appropriate knowledge and
skill.
• Before opening any system make sure pressure in
system is brought to and remains at atmospheric
pressure.
• Do not release any refrigerant into the
atmosphere!
• Do not exceed the specified maximum ratings for
pressure and temperature.
• Do not use any other fluid media without prior
approval of EMERSON. Use of fluids not listed
could result in: Change of hazard category of
product and consequently change of conformity
assessment requirement
accordance with European pressure equipment
directive 14/68/EU.
• Ensure that design, installation and operation are
per European and national standards/regulations.
I n s t a l l a t i o n :
• Valves may be installed in any direction, but should
be located as close as possible to the distributor or
evaporator inlet.
• Be sure liquid line is connected to inlet of TI valve
after inserting orifice including strainer into the
valve (Fig.1).
• Flare connections: For flare joints the following
subjects need to be considered:
- Proper torque for fastening the nuts as follows:
Inlet: 40...50 Nm Outlet: 5...60 Nm
External equalizer: 17...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 & 4)
- Apply a few drops of refrigeration oil on surfaces
of angled tube before fastening.
Warning: Failure to do so it will not provide
the proper tightness. 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 not stop the leakage. Do not
over torque the nut at the inlet connection. The
orifice would be jammed inside of valve and will
cause an erratic function of valve.
Table 1: Superheat changes (K) for one full turn of adjusting stem
-45 -40 -35 -30
R134a 7.8 6.5 5.4 4.6
4.5 3.8 3.2 2.8
R22
R404A 3.7 3.1 2.7 2.3
R407C 5.1 4.2 3.5 3.0
R507 3.6 3.0 2.6 2.2
R410A 2.9 2.4 2.1 1.8
R448A/
4.1 3.4 2.9 2.5
R449A
Emerson Climate Technologies GmbH
Am Borsigturm 31 I 13507 Berlin I Germany
Thermo™- Expansion Valve TI Series
• Brazing connections TILE (Fig.5):
- TILE with stainless steel does not require any wet
rag during brazing. It is important to consider the
following subjects:
- Use of flux and silver rod having minimum 30%
silver
- Direct torch away from valve
• 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. 120°C).
• 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 apply
a few drops of refrigeration oil.
- The proper torque for fastening the nut of adapter:
40...50 Nm
• Unwind the capillary tube. Do not bend the capillary
tube at brazing joint. Allow space on top of valve
head bending (Fig.1).
• Securely fasten the bulb with provided strap. Insulate
bulb with suitable material against environment
(Fig.7).
• Be sure that the external equalizer line cannot siphon
oil from the suction line.
• The expansion valve must be free of all
contaminants. Install a filter drier before the valve.
• Check for leaks, sufficient refrigerant charge and be
sure no flash gas is
for product in
P r e s s u r e T e s t :
After completion of installation, a pressure test must be
carried out as follows:
- according to EN 378 for systems which must comply
with
14/68/EU.
- to maximum working pressure of system for other
applications.
Warning:
• Failure to do so could result in loss of refrigerant
and personal injury.
• The pressure test must be conducted by skilled
persons with due respect regarding the danger
related to pressure.
L e a k a g e T e s t :
Conduct a tightness test according to EN 378-2 with
appropriate equipment and method to identify leakages
of external joints.
P r o p e r o p e r a t i o n o f G a s c h a r g e s :
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).
S u p e r h e a t A d j u s t m e n t : ( F i g . 9 )
Proceed as follows if the superheat need the
readjustment:
Evaporating temperature °C
-25 -20 -15 -10 -5
3.9 3.3 2.8 2.4 2.1
2.4 2.1 1.8 1.6 1.4
2.0 1.7 1.5 1.3 1.2
2.5 2.2 1.9 1.6 1.4
1.9 1.7 1.4 1.3 1.1
1.5 1.3 1.1 1.0 0.9
2.1 1.8 1.6 1.4 1.2
www.emersonclimate.eu
Operating instruction
European pressure equipment
Table 2: Superheat Readjustment for alternative refrigerants
Standard Charge
(refrigerant)
0 5 10
1.8 1.6 1.4
1.2 1.1 1.0 MW (R134a)
1.0 0.9 0.8
1.2 1.1 1.0 SW/SAD (R404A)
1.0 0.9 0.8
0.8 0.7 0.6
1.1 1.0 0.9
Date: 16.10.2017
1. Remove seal cap from side of valve.
2. Turn the adjustment screw clockwise (+) to increase
the superheat and counterclockwise (-) to decrease
superheat. Changes in Superheat (K) per stem turn
depending on
refrigerant (see Table 1). As much as 30 minutes are
required for the system to stabilize after the
adjustment is made.
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:
1. turn in (–) direction until Stop is reached
2. turn in (+) direction according to table (full turns)
Attention!: TILE-ZW (R410A) may require the
increase of factory static superheat setting for low
temperature refrigeration applications such as
freezers.
T I v a l v e s w i t h s t a n d a r d c h a r g e f o r
a l t e r n a t i v e r e f r i g e r a n t s :
• 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 superheat
readjustment of valve
- Opening superheat changes after readjustment
valve
- Slight shifting of MOP value (if available)
• The magnitude of shifting/changes is dependent on
the saturation pressure of a designed charge vs.
directive
alternative refrigerant
temperature (see table 2).
T e c h n i c a l D a t a :
Medium temperature range TS: -45...70°C
Fluid group: II
Maximum working pressure PS: 45 bar
Factory test pressure: 49.5 bar
Hazard category:
Marking: CE not allowed;
Connection DN:
Valve
Inlet
TILE/
TISE
5/8"-18UNF
Flare
TIE
Brazing adapter with copper washer for inlet (size):
TIA-M06 6 mm
TIA-M10 10 mm
Maximum bulb temperature for liquid charges:
Liquid Charge Maximum bulb temperature
MW
SW
ZW
BW
alternative Evaporating temperature
refrigerant
-40
R450A +1/3 +2/3
R513A -1/3
R507 -1-1/4
R452A +3/4
evaporating temperature and
shifting and therefore
at certain evaporating
SEP (PED 14/68/EU)
Outlet Ext. Equalizer
1/2" & 1/4''& 6mm
12mm ODF ODF
3/4"-16UNF 7/16"-20UNF
Flare Flare
TIA-014 1/4"
TIA-038 3/8"
100°C
85°C
66°C
85°C
-30 -20 -10 0
Number of turns
+1 +1-1/2 +2
-1/2 -2/3 -1 -1-1/3
-1 -3/4 -1/2 -1/2
+1 +1-1/3 +1-3/4 +2-1/4
TI_OI_ML_R07_865884.docx