Need Flow charts & Design GPM for Trane PCV Centravac Chiller

[Chet1508]

1) the Flow charts for both the evaporator & condenser for a Model PCV

2) The required GPM for both the evaporator & Condenser on a PCV

3)need detailed Unit Model Number Description for the Model PCV Centravac Chiller


Thank you, Chet

[Chiller Guy]

There are a lot of charts. What model are you looking for?

[Chet1508]

Model: PCV-4D C1D2

There are a lot of charts. What model are you looking for?

[Chiller Guy]

Chet,
I hope this is some help!

PCV-4D-C1-D2 = Packaged CentraVac
4= 400 Tons
D = part of 100 tons (in this case I beleive it was 25 tons)
C = Evap flow arrangement 1 designating 1 pass
D = Cond flow arrangement 2 designating 2 pass
I think the C & D are correct but can be corrected

My catalog only showes a PCV-4F but this should be close:
Min flow for a 1 pass evap is 1100 gpm
Max flow for a 2 pass evap is 2422 gpm
Cond flow is 411 min & 1505 max
Dinner Calls

[Chet1508]

Chiller Guy

this is good info - also need min max pressure drop recommended through condenser & evaporator

Thanks again, Chet

Chet,
I hope this is some help!

PCV-4D-C1-D2 = Packaged CentraVac
4= 400 Tons
D = part of 100 tons (in this case I beleive it was 25 tons)
C = Evap flow arrangement 1 designating 1 pass
D = Cond flow arrangement 2 designating 2 pass
I think the C & D are correct but can be corrected

My catalog only showes a PCV-4F but this should be close:
Min flow for a 1 pass evap is 1100 gpm
Max flow for a 2 pass evap is 2422 gpm
Cond flow is 411 min & 1505 max
Dinner Calls

[Chiller Guy]

No recommended delta p. It will be a function of flow, but here are the numbers to work with.
Delta p on cond at min flow = 2'
at max flow = 21'

Delta p on 1 pass evap at min flow = 3.5'
at max flow = 15'


P.S. My last post should show the Min/Max flows for a single pass evap, not a double pass.

[Chiller Guy]

I figure you should need about 1224 gpm thru the cond for 425 tons @ a 10 delta T. That flows should produce about 13' delta P

The single pass evap can vary if you know the delta T (5-8-10) or the capacity of the pumps it would help.

On those machines we used a SWAG of 2 1/2 gpm per ton on the evap and 3 gpm per ton for the cond for field work

[Chet1508]

What I am trying to determine is if the condenser tubes are fouled or not according to Tranes literature, it states to see the "Trane CenTraVac Catalog for curves showing pressure drop vs. water flow" to determine if the tubes are fouled. This Catalog is what I am looking for.

Thanks, Chet

[Control Man]

I have the TRANE CENTRA VAC catalog your refering too.

Is your PCV-4D a single pass or 2 pass evaporator and the catalog has 4 WATER PRESSURE DROP charts in it.


Design info listed is External tube surface Evap 2596 SQ Feet Cond 2491 SQ Feet

2 PASS

Evap 421 - 1540 GPM Cond 525 - 1922 GPM

1 PASS

Evap 1400 - 3080 GPM Cond 1749 - 3844 GPM


1,060 Lbs of refrigerant , 7 Gallons of oil , Operating weight 20,800 Lbs Shipping Weight 20,000 Lbs

[Chet1508]

Hi Control Man,

Can you please email the catalog to me, my email address is in my profile.


Thank you, Chet

[Control Man]

Sorry but its not in PDF form , about 30 pages and is a little on the old / abused .

Will see how it scans.

[Chiller Guy]

You should be able to pick up fouling by using the approach.

What problem are you having? Perhaps we can help!

[Chet1508]

Sounds good, Thanks Chet

Sorry but its not in PDF form , about 30 pages and is a little on the old / abused .

Will see how it scans.