Identification The thermostatic element has laser engraved data on top of the
diaphragm. This engraving gives valve type (with code number),
evaporating temperature range, MOP point, refrigerant, and max.
working pressure. PS/MWP.
T2 = internal equalization TE2 = external equalization
The code refers to the refrigerant for which the valve is designed:
X = R22/R407C1) Z = R407C
N = R134a
S = R404A/ R507
R407F / R407A (No code designated) R448A / R449A (No code
designated)
1) For R407C plants, please select valves from the dedicated
R407C program
Production place and date N4511A =
N = Nordborg, Denmark (BE = Wuqing, China)
45 = week 11 = 2011
A = Monday
Orifice assembly for T2 and TE2
The orifice assembly is marked with the orifice size (e.g. 06) and
week stamp + last number in the year (e.g. 174).
The orifice assembly number is also given on the lid of its plastic
container.
Capillary tube label for T2 and TE2
The label gives the orifice size (04) and consists of the lid of
the orifice assembly plastic container. It can easily be fastened
around the expansion valve capillary tube to clearly identify the
valve size.
Features
Technical data Max. temperature
Bulb, when valve is installed: 100 °C Bulb, element not mounted: 60
°C
Min. temperature
T2 - TE2: –60 °C
MOP-points
Max. test pressure
PT = 38 bar
Max. working pressure
PS/MWP = 34 bar
| Refrigerant | Range N –40 °C - +10 °C | Range NM –40 °C - –5 °C | Range NL –40 °C - –15 °C | Range B –60 °C - –25 °C |
| MOP-point in evaporating temperature te and evaporating pressure pe
1) |
| +15 °C / +60 °F | 0 °C / +32 °F | –10 °C / +15 °F | –20 °C / –4 °F |
| R22 | 100 psig/6.9 bar (abs) | 60 psig/4.0 bar (abs) | 35 psig/2.4 bar (abs) | 20 psig/1.4 bar (abs) |
| R407C | 95 psig/6.6 bar (abs) | | | |
| R134a | 55 psig/3.8 bar (abs) | 30 psig/2.0 bar (abs) | 15 psig/1.0 bar (abs) | |
| R404A/R507 | 120 psig/8.3 bar (abs) | 75 psig/5.2 bar (abs) | 50 psig/3.4 bar (abs) | 30 psig/2.1 bar (abs) |
Superheat
1) Pe in bar gauge
SS = static superheat OS = opening superheat
SH = SS + OS = total superheat Qnom = rated capacity
Qmax = maximum capacity
Static superheat SS can be adjusted with setting spindle.
The standard superheat setting SS is 5 K for valves without MOP and
4 K for valves with MOP.
The opening superheat OS is 6 K from when opening begins to where
the valve gives its rated capacity Qnom.
Example
Static superheat SS = 5 K Opening superheat OS = 6 K
Total superheat SH = 5 + 6 = 11 K
