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7. Coolant procedures
7.2
Draining 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.
Make sure the chiller is disconnected from the projector and other chillers before attempting to drain the
coolant circuit.
Keep a cloth or towels ready to clean up eventual spillage.
This procedure assumes the rear cover has been removed. For more info, see "Covers", page 8.
How to drain the coolant circuit of a single ULC-30A chiller?
1. Remove the fan unit. See procedure "Removal of the fan unit", page 21.
2. If requested by the software, install the dummy fan connector in the same location the fan was plugged in.
Note:
This step is no longer necessary nor requested in the current
fi
rmware. However, if you still have an older version of the
chiller
fi
rmware, this step may still be requested.
3. Remove the insulation cover.
F
Image 7-2
Removing the insulation cover
4. Disconnect hose “F” (chiller tank return line) from the upper and hose “E” (pressurization pump send line) from the lower coupler
of the pump.
26
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...