Series TLEX 8 - 11
THERMOSTATIC EXPANSION VALVES
FIXED ORIFICE, ADJUSTABLE SUPERHEAT SETTING, BALANCED PORT
PRODUCT DATA
Features
• Damped gas charge with MOP as standard
• Optional available with liquid charge
• Adjustable superheat setting
• Warm thermal head provides best reliability
• Solder connections
• External pressure equalisation
• Extreme durable due to stainless steel head and
stainless steel diaphragm welded using protective gas
• Balanced port construction
• Fixed orifice
• Refrigerants: R22, R134a, R404A, R407C
Further refrigerants on request.
Specification
Application
Thermostatic expansion valves series TLEX are used in
plants with one or more refrigerant circuits, in particular for
series installations such as air conditioning units, chiller units
and heat pumps.
Materials
Body
Thermal head
Connection tubes
brass
stainless steel
copper
Nominal capacity range
Evaporating temperature
range
Maximum pressure PS
Maximum test pressure PF
Max. ambient temperature
Max. bulb temperature
Static superheat
Length of capillary tube
Bulb diameter
64.1 to 95.8 kW R22
see table on page 2
see table on page 2
see table on page 2
(simultaneous on all
connections)
100 °C
gas charge: 140 °C
liquid charge: 70 °C
approx. 3.5 K
2 m
16 mm
Copyright © 2009 Honeywell GmbH • Subject to change without notice EN0H-1910GE23 R0709
SERIES TLEX 8 - 11
Thermal Charges and Temperature Ranges
1. Gas charge with pressure limiting MOP
Refrigerant
R22 +15 °C to -45 °C MOP +15 °C 36 39.6
R134a +15 °C to -40 °C MOP +15 °C 34 37.4
R404A +10 °C to -50 °C MOP +10 °C 36 39.6
R407C +15 °C to -30 °C MOP +15 °C 36 39.6
Further refrigerants and MOP on request.
MOP valves protect the compressor by limiting the increase
of suction pressure.
The MOP value should be chosen for the max. permissible
suction pressure of the compressor or min. 5 K higher than
the required evaporating temperature of the system.
With gas charged valves and MOP it is under all operating
conditions necessary that the bulb is always colder than the
capillary tube and the thermal head!
With the Honeywell TLEX series the thermal head is heated
advantageously by the liquid refrigerant. The warm thermal
head is on the safe side at any time.
Evaporation
temperature
range
MOP PS
(bar(a))
PF
(bar(a))
2. Liquid charge
Refrigerants on request.
Capacities
Type Orifice size
8 64.1 43.3 45.1 61.8
TLEX
* Capacities are based on t0 = +4 °C, tc = +38 °C and 1 K subcooled liquid refrigerant entering the valve.
For other operating conditions see capacity charts in Honeywell catalogue or consult the Honeywell software.
10 75.1 51.0 52.8 72.3
11 95.8 65.0 67.4 92.3
R22 R134a R404A R407C
Nominal capacity (kW)*
Dimensions and Weights
TLEX
Orifice
size
8
10
11
Inlet
(A)
22 mm 28 mm 6 mm
22 mm 35 mm 6 mm
7/8" 1 1/8" 1/4"
7/8" 1 3/8" 1/4"
Connections ODF Type
Outlet
(B)
Pressure
equaliser (C)
Weight
(kg)
approx. 1.3
EN0H-1910GE23 R0709 2 Honeywell GmbH • Subject to change without notice
SERIES TLEX 8 - 11
TLEX 8 - 11
Type Code / Order Information
TLEX 8 R134a MOP +15 °C 22 mm x 28 mm
Series
Orifice size
Refrigerant
MOP, evaporation temperature range
Solder connection ODF
(inlet x outlet)
Honeywell GmbH • Subject to change without notice 3 EN0H-1910GE23 R0709
SERIES TLEX 8 - 11
Installation
• The valves may be installed in any position.
• The external pressure equaliser line should be 6 mm or
1/4" in diameter and is to be connected downstream of the
remote bulb. An overbow is recommended in order to
prevent the ingress of oil into the equaliser line.
• The bulb should preferably be positioned on the upper half
of a horizontal suction line but never after a liquid trap. As
a general rule, bulbs of expansion valves should be
insulated to prevent them being affected by the ambient
temperature.
• When soldering the valve, the valve body must not get
warmer than 100 °C.
• Do not bend or squeeze the bulb when thightening the
bulb clamp!
• Constructive modifications at the valve are not allowed.
Information for original equipment manufacturers:
The valve series TLEX can be customised to the
requirements of your series device in an optimum way.
Contact us!
Superheat Adjustment
In general the valves should be installed with the factory
setting for the used refrigerant unaltered. This setting is
calibrated for lowest superheating and optimum evaporator
utilization. However, should it be necessary to adjust the
superheat, turn the adjusting spindle as follows:
Turning clockwise
Turning
counterclockwise
One turn of adjusting spindle alters superheat setting by
approx. 0.3 bar. Increase of superheat setting results in a
lower MOP value and vice versa.
reduced refrigerant mass flow,
=
increase of superheat
increased refrigerant mass
=
flow, decrease of superheat
Automation and Control Solutions
Honeywell GmbH
Hardhofweg
74821 Mosbach/Germany
Phone: +49 (0)
Fax: +49 (0)
62 61 / 81-475
62 61 / 81-461
Manufactured for and on behalf of the
Environment and Combustion Controls
Division of Honeywell Technologies Sàrl,
1180 Rolle, Z. A. La Pièce 16, Switzerland
by its authorized representative Honeywell GmbH
E-Mail: cooling.mosbach@honeywell.com
KAT-TLEX8_11-002
www.honeywell-cooling.com
EN0H-1910GE23 R0709 4 Honeywell GmbH • Subject to change without notice
Loading...