Unit installation

Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09
4.6.2 Warning in case of connection to the terminal board when optional “TE” is installed
In case the unit is provided with optional TE (electronic thermostatic valve), pay the maximum attention to the spare
battery power supply.
“GB1” (spare battery) is an electronic device which guarantees a temporary power supply to the “Driver” device in case of
sudden power supply shortage, thus allowing the immediate shutoff of the thermostatic valve.
Before perfoming any operation, it is advisable to check the charge of the battery as per the instructions;
Ø Power the control
Ø Press the button I/O
Ø Check parameter N4
For further information, check the control manual on chapter 7, section “input-output/driver” and chapter 9. If battery
is flat, 48 hours are needed to charge it.
During the check-up operation before the unit startup, it is advisable to disconnect the spare battery to avoid that
continuous power and disconnection operations might damage it.
- open the duct above the component GB1 (driver battery EVV) and disconnect the power supply cables (see the
picture)
Picture 33
Once the test is completed, it is reminded to re-connect the battery to
bring the unit back to a safety condition.
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