Daikin VRV

[Joe D]

Hi
Can anyone give a reason why a VRV system cannot be used on a harbour tug in a marine envirenment, apart from the corrosion factor local Daikin agents are non commital.
Joe D

[The Viking]

The only thing I can think of is the power supply.
They are sensitive beasts and might not like the generator supply.

[VRVIII]

Hi
Can anyone give a reason why a VRV system cannot be used on a harbour tug in a marine envirenment, apart from the corrosion factor local Daikin agents are non commital.
Joe D

Hi,

Daikin also have a marine division for this type of application http://www.daikineurope.com/product/industrial/marine/default.jsp

http://www.daikin.com.sg/marine/brochure/MarineType_SmallSize_CU.pdf

I have seen a standard water cooled VRV system installed on a boat, this was done with primary (fresh water) and secondary (sea water) condenser water loops. They obviously used a marine type heat exchanger and 2 pumps.
I don't know if this application would be covered by Daikin warranty.

[Clk320_Greg]

If you ever drive along the embankment in london theres a few converted boats that are now restraunts/bars/celeb drug dens these are all littered with VRV's and splits!

[brunstar]

Hi,

Daikin also have a marine division for this type of application http://www.daikineurope.com/product/industrial/marine/default.jsp

http://www.daikin.com.sg/marine/brochure/MarineType_SmallSize_CU.pdf

I have seen a standard water cooled VRV system installed on a boat, this was done with primary (fresh water) and secondary (sea water) condenser water loops. They obviously used a marine type heat exchanger and 2 pumps.
I don't know if this application would be covered by Daikin warranty.

Yeah I have seen this too, it would be a much better option using the water cooled, less space needed, no corrosion of the condenser coils either being water cooled.
They do this a lot in dubai. Like was quoted before don't put salt water through the unit. You may also want to blygold the unit for better protection!

[Joe D]

Hi Thanks for the advice we plan to use air cooled condenser which will be inside the superstructure with filtered air and also the unit will be corrosion treated the power supply will be regulated and phase protected condensate water will be pumped and additional deep safety drip trays fitted under the evaporators.

[Sridhar1312]

I Remember even the air cololed condensers fins get powdered in less than a year and air cooled option for the sea /marine application is not apt. Best is to use water cooled with once through water with cu pro nickel tubes condensers is the best option.
Most improtant the cooling coils of indoor need to be deeper with 6 row or 8 row to increase the dehumidification needed for marine application, which may not be feasible as most of the indoor units are with two or three row cooling coils.

[hookster]

Hi Joe
I assume this is a retrofit and looks like a budget option!!

The original design must have been for supply of conditioned air. The marine enviroment will require a large make up of fresh air and greater air changes than domestic installations.

Refrigerant leaks are potential asphyxiation risks in the structure and majority of marine installations are supplied air or secondary refrigerants.

For initial capital outlay this is a cheap option but maintenance associated with filters,condensate pumps treatment for legionella etc makes this less than viable.