7. Coolant procedures
Image 7-6
Connecting the service kit hoses
Warning:
Risk of
fl
uid spillage. Make sure that the previous step has been done and the pressurization pump has
fi
nished its
operation before connecting the open ended hose.
Note:
Keep a cloth or towels ready to clean up eventual spillage.
10.Use the Service tool wizard to drain (purge) the coolant circuit.
In this phase, the pressurization pump is activated to drain the pump unit. Air enters inside the unit through the venting tube and
is pumped into the external container.
11.Switch off power. See procedure "Switching off power and locking the switch", page 15.
12.Remove the service kit hoses.
13.Disconnect hose “D” (pressurization pump suction line) from the lower coupler of the pump.
D
Image 7-7
Disconnecting "D"
7.3
Filling the coolant circuit
Necessary tools
•
Service PC and software
•
Chiller service kit
•
Cloth or towels
C
AUTION
:
This procedure assumes that power has been switched off. To switch off power, see procedure
"Switching off power and locking the switch", page 15.
How to
fi
ll the coolant circuit of the ULC-30A chiller?
1. Connect the hose “D” to the coupler located on a small support at the bottom of the chiller.
28
R5906015 ULC-30A 01/02/2018
Summary of Contents for ULC-30A
Page 1: ...ULC 30A Service manual R5906015 01 01 02 2018...
Page 4: ......
Page 6: ...Table of contents Index 97 2 R5906015 ULC 30A 01 02 2018...
Page 10: ...1 Safety 6 R5906015 ULC 30A 01 02 2018...
Page 24: ...5 Covers 20 R5906015 ULC 30A 01 02 2018...
Page 28: ...6 Fan unit 24 R5906015 ULC 30A 01 02 2018...
Page 40: ...7 Coolant procedures 36 R5906015 ULC 30A 01 02 2018...
Page 70: ...10 Refrigeration unit 66 R5906015 ULC 30A 01 02 2018...
Page 92: ...11 Electronics Unit 88 R5906015 ULC 30A 01 02 2018...