List Of Checks To Be Carried Out By The Installer Before Calling Carrier Service For Unit Maintenance - Carrier AQUASNAP 30RQ Installation, Operation And Maintenance Instructions

13 - lIsT OF ChECKs TO BE CaRRIED OUT BY ThE INsTallER BEFORE CallINg CaRRIER sERvICE FOR
UNIT MaINTENaNCE
Is there any shipping damage? .................................................... If so, where? ...............................................................................
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Will this damage prevent unit start-up? .............................................................................................................................................
Unit is level in its installation
Power supply agrees with the unit nameplate
Electrical circuit wiring has been sized and installed properly
Unit ground wire has been connected
Electrical circuit protection has been sized and installed properly
All customer connection terminals (power) are tight
All chilled water valves are open
The chilled water pipes are correctly connected
The air present in the chilled-water circuit has been purged
The chilled-water pump uses the correct rotation direction. Check the phase sequence of the electrical connection. If
the unit is equipped with a hydronic module, use the pump test function (refer to the 30RB/RQ Pro-Dialog Plus control
manual). After the pump test has been completed, switch the unit off again.
Circulate chilled water in the water circuit for at last two hours, then remove, clean and replace the screen filter. After
the pump test has been completed, switch the unit off again
Inlet piping to water heat exchanger includes a 20 mesh strainer with a mesh size of 1.2 mm
The compressor flange has been removed
Unit start-up
Never energise the unit before the intervention of Carrier service personnel (except for the pump rotation direction
check, see previous chapter)
The chilled-water pump contactor has been correctly connected to the heat pump (unit without hydronic module)
Check water heat exchanger water loop
Water loop volume = ..................................... (litres)
Calculated volume = ....................................... (litres)
3.25 litres/nominal kW capacity for air conditioning
6.5 litres/nominal kW capacity for process cooling
Proper loop volume established
Proper loop corrosion inhibitor included ............litres of .......................................................
Proper loop freeze protection included (if required) .............litres of ............................................
The system piping is equipped with strip heaters, if exposed to temperatures below 0°C
NOTES:
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Order No: R3446-76, 01.2008 - Supersedes order No: R3446-76, 11.2005
Manufacturer reserves the right to change any product specifications without notice.
Manufacturer: Carrier SCS, Montluel, France.
Printed in the Netherlands on chlorine-free paper.