Emerson PT5N Serie Instrucciones De Funcionamiento

G e n e r a l i n f o r m a t i o n :
Pressure Transmitters convert a pressure into a linear
electrical output signal. The transmitter is preset to the
specific measuring range at the manufactures plant. An
additional setting is not possible.
The device has not been qualified according to ATEX
standards. Installation only in "non-explosive location".
For A2L use, PT5N has no potential ignition source, due
electrical ratings are too low for an igniting.
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.
• This product is intended for use by qualified personnel
having the appropriate knowledge and skills like trained
according to EN 13313 or a specific training for
flammable refrigerants.
• Flammable refrigerants require special handling and
care due to its flammability. Sufficient ventilation is
required during service of the system.
• Contact with rapidly expanding gases can cause
frostbite and eye damage. Proper protective equipment
(gloves, eye protection, etc.) has to be used.
• Ensure that the system is correctly labeled with applied
refrigerant type and a warning for explosion risk.
• In a severely contaminated system, avoid breathing acid
vapors and avoid contact with skin from contaminated
refrigerant / lubricants. Failure to do so could result in
injury.
• 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, temperature, voltage and current.
• Ensure that the system piping is grounded.
• Do not operate system before all cable connections are
completed.
• Before installation or service disconnect all voltages
from system and device.
• Do not use any other fluid media without prior approval
of EMERSON. Use of fluids not listed could result in a
change of hazard category of product and consequently
change of conformity assessment requirement.
• Ensure that design, installation and operation comply
with European and national standards/regulations.
• For flammable refrigerants only use valves and
accessories approved for it!
• Electronic devices are subject to electromagnetic
interference. Ensure that all components in the system
are sufficiently protected.
T y p e C o d e
Product Name
Pressure Range (Signal output)
07 -0.8...7 bar 30 0...30 bar
18 0...18 bar 50 0...50 bar
T e c h n i c a l D a t a :
Type
Pressure range
Max. allowable pressure PS
Temperature range TS
Medium compatibility
Supply voltage
Electrical Connection
Protection class (EN 60529)
Markings
Dimensions
Emerson Climate Technologies GmbH
Pascalstrasse 65 I 52076 Aachen I Germany
O P E R A T I N G I N ST RU C T I O N S
Pressure Transmitter PT5N Series
M o u n t i n g l o c a t i o n : ( F i g . 1 )
• In order to prevent ice build-up and or condensation on
the PT5N when connected to the suction pipe, it is
sometimes useful to extend the connection using a
nominal 200 mm piece of 6 mm/1/4" copper tube from
the main suction pipe.
• To maintain accuracy of PT5N the installation of a pipe
between pressure transmitter and source of high
temperature media is recommended.
• Protect PT5N against sunrays and vibration.
M o u n t i n g d i r e c t i o n :
Position as desired
I n s t a l l a t i o n :
Flare Connection - PT5N-xxM: (Fig. 2)
• Do not exceed max. torque of 10 Nm for tightening of
PT5N to Schrader pressure connection.
NOTE: If a leak is detected at the specified torque, the flare
surface of the Schrader connector should be checked for
scratches. Do not over torque; instead, insert a copper
gasket.
NPT Connection - PT5N-150D: (Fig. 3)
1a Seal with PTFE tape
• The PTFE tape described is according to BS4375 with a
width of 12 mm and a thickness of 0.075 mm ± 10 %.
• The tape must be wrapped around the thread in its
running direction and should be checked to determine
that it does not protrude at the beginning of the thread.
From the beginning of the thread apply 5 layers of the
sealing tape. By doing this the tape needs to be tightened
on the thread spiral, without damaging it.
1b Seal with sealing liquid Loctite 567
• Spread the product 360° around the beginning of the
thread, leaving the first thread pitch free. Spread material
to the bottom of the thread to fill in the blanks thoroughly.
NOTE: For the maximum pressure and solvent
resistance let the material cure for at least 24 hours
2 Screw in and tighten first by hand.
3 Then tighten 1/2 turn with a 24 mm wrench or tighten with
a torque wrench 20 Nm.
Braze Connections - PT5N-xxT: (Fig. 4)
• Perform the brazing joint as per EN 14324.
• Before and after brazing clean tubing and brazing joints.
• Minimize vibrations in the piping lines by appropriate
solutions.
• Use flux and silver rod with minimum of 30 % silver.
• Do not exceed the max. surface temperature of 120 °C!
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
- to maximum allowable pressure of system for other
applications.
PT5N
150 0...150 bar
PT5N-07M/T
-0.8...7 bar
27 bar
Storage / Transport: -50...+100 °C
R134a, R410A, R407C, R404A, R507, R448A, R449A, R513A, R450A, R452A, R23, R124, R744
R32
M12 connection according to IEC 61076-2-101:2012 Part 2 – PT4-M15/30/60 Cable Assembly
(EMC: EN 61326-2-3:2013)
www.climate.emerson.com/en-gb
- x x
Pressure Connection
M 7/16"-20 UNF
T 6 mm tube, soldar & 40 mm long
D 1/4"-18 NPT (male)
PT5N-18M/T PT5N-30M/T
0...18 bar 0...30 bar
48 bar 60 bar
Ambient (housing): -30...+85 °C
7...33 V DC (Protection class III)
IP67 with molded plug and cable assembly
(E499688)
see Fig.7
T i g h t n e s s T e s t :
Conduct a tightness test according to EN 378-2 with
appropriate equipment and method to identify leakages
from joints and products. The allowable leakage rate must
be according system manufacturer's specification.
WARNING:
• Failure to pressure test or tightness test as
described could result in loss of refrigerant, damage
to property and/or personal injury.
• The tests must be conducted by skilled personnel
with due respect regarding the danger related to
pressure.
E l e c t r i c a l c o n n e c t i o n : ( F i g . 5 , F i g . 6 )
• Before wiring disconnect all voltages from system and
device.
• For proper wiring use the cable assembly PT4-Mxx.
• Ensure that the cables are mounted without tension;
always leave the cable a bit loose.
• Ensure that cables are not mounted near sharp edges.
• Do not bend or mechanically stress the cable outlet,
maintain a clearance of 20 mm to neighboring parts.
• Allow enough space on top of pressure transmitter to
mount plug as shown in Fig. 6.
• The plug can be mounted on pressure transmitter only in
one position (Fig. 5 marking:
• Installation plug pressure transmitter
• Prewired plug and cable assembly is ready for
connection to the transmitter
• 1.Push the plug on pins on top of the pressure
transmitter.
• 2. Rotate the nut one turn in clockwise direction and
push the plug.
• 3. Repeat this procedure until the plug is tightened
• Ensure, that the plug (with cable) is correctly placed
and tighten..
Cable Colour Code and Pin Connection
Part
PT4-Mxx (Plug/Cable)
NOTE:
• In case electrical connection cable is extended beyond
6 m, system signal noise and EMC must be verified by
installer for proper operation.
• Signal line should not be installed parallel with power
lines to avoid electrical interference.
• Disconnection of electrical plug from device only when
the power is switched off.
S e r v i c e / M a i n t e n a n c e :
• Defective PT5N must be replaced, they cannot be
repaired.
• Before any debrazing ensure that the flammable
refrigerant is pumped out of the system and the room
around the system is well vented so no refrigerant left.
• According to EN 378-4
maintenance, tightness tests shall be carried out at the
relevant part of the refrigerating system. This shall apply
where appropriate following any repair.
PT5N-50M/T
0...50 bar
75 bar
Medium: -40...+135 °C
OI_PT5N_A1_A2L_EN_DE_FR_ES_IT_RU_Rev05_866912.docx
EN

).
Supply, Signal,
+24 VDC 4 – 20 mA
Pin 1: BN Pin 2: WH
Brown wire White wire
during each periodic
PT5N-150D
0...150 bar
150 bar
Date: 01.02.2023