RGL_Unit_CO2_PT5/E/Rev00
1/5
Date of last update: Mar-20
Ref: RGL_Unit_CO2_PT5/E/Rev00
Application Engineering Europe
C
OPELAND
E
AZY
C
OOL
™
CO
2
R
EFRIGERATION
U
NIT
F
LASHTANK
P
RESSURE
T
RANSDUCER
R
EPLACEMENT
This installation guide gives instructions for the replacement of the pressure transducer placed on the liquid receiver
on Copeland EazyCool
™ CO
2
refrigeration units. The PT5 replacement kit makes it possible to install a pressure
transducer into the compressor compartment of the CO
2
unit, instead of the flashtank shut-off valve where it was
placed originally. This installation guide describes the main working steps and provides some useful tips.
1
Main steps
1.
Switch off the main switch to shut the unit down.
2.
Isolate the unit from the cooling circuit by closing the shut-off valve on compressor discharge and the shut-off
valve on flashtank.
3.
Remove pressure (charge) from the liquid receiver of the unit including the whole discharge line and the
gascooler.
4.
Install the PT5 kit as per instructions below.
5.
Switch on the main switch.
6.
Check the functioning of the new pressure transducer on the visograph display.
7.
Perform a leakage test.
8.
Insulate the Schraeder connection as per instructions below.
9.
Put the device into operation.
2
Kit contents
A. Brazed set including PT5 pressure transducer, high-pressure hose and rubber stepper plug
B. Bracket
C. Plastic clamp Ø 19 mm
D. Fasteners
E. Plug 1/4" NPT
F.
Copper seal to high-pressure hose
G. Insulation set (insulation pipe and insulation tape)
Figure 1
A
B
E
C
F
D
G
