Sanhua TXVH Serie Manual De Instrucciones

THERMOSTATIC EXPANSION VALVE
TXVH INSTRUCTIONS
TXVH series thermostatic expansion valves are used
to regulate refrigerant flow rate into the evaporator
while controlling the refrigerant´s superheat at the
outlet of the evaporator. They can be used for various
refrigerants under all working conditions.
GENERAL SPECIFICATIONS
Applicable to fluids and refrigerants of GROUP 2 according to Directive 2014/68/EU or GROUP A1
according to ANSI-ASHRAE 34-2010.
Temperature allowed range:
Design Pressure (PS):
INSTALLATION INSTRUCTIONS:
1 Install the TXV upright with the power
element orientated at the top. Evaporators
with liquid distributors require TXVs with
external equalizers.
3 THREADED VERSION: Braze the inlet adaptor to
the liquid line with Sil-Fos® 15 (recommended)
before attaching to the TXV.
II-TXVH-MU-R1709
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-40°F to +158°F (-40°C to +70°C)
667 psig (46 bar)
THERMOSTATIC EXPANSION VALVE TXVH
1300°F Max
(700°C)
SOLDER VERSION: Cover the TXV body and
2
power element with a wet rag before brazing.
Braze the inlet, outlet and external equalizer
(if present) with Sil-Fos® 15 (recommended).
212°F Max
(100°C)
1300°F Max
(700°C)
4
Insert the properly sized orifice and install the
adaptor to the TXV inlet. Tighten the adaptor
using two wrenches to the required torque
illustrated in step 4.
Torque 30 to 33 lbf
(40 to 45 Nm)
122°F Max
(50°C)
250°F Max
(120°C)
Torque 22 to 26 lbf
(30 to 35 Nm)
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