Carrier 30HCW application infrormation.

Question

I am an Electrical Engineer, temporary engaged on one Project in Russia. My task is to provide power supply of the chiller plant, consisting 3 chillers, each of them designated as 30HXC285-PH3. According to design documentation each Chiller have to work in the following mode:

Evaporator entering/leaving water temperature 12°C and 7°C.
Condenser entering/leaving fluid (40% ethylene-glycol)35°C/40°C.

We already got the results of Chiller Selection Software, in which we found the following data related to electrical power connection of Ciller(s):

PRODUCT 30HXC285-PH3
Range 30HXC Phase3 (Standard)
Gross capacity 945 kW
Unit absorbed power 235k W
Compres. Input power 235 kW

EVAPORATOR
Fluid Water
Leaving T. 7 °C
Delta T. 5 K
Entering T. 12 °C
CONDENSER
Ethylene Glycol 40%
Entering T. 35 °C
Delta T. 5 K
Leaving T. 40 °C

VOLTS/PHASE/HERTZ 400/3/50
Power factor 0.87 (at max power)
Maximum current drawn 516 A (U nom)
Maximum starting current 1200 A
Voltage limits 360/440 V

My questions are:

May I get (via e-mail) the Chiller selection data for the case if we vary only the following, application dependent, conditions for 2 cases:

(1) Varying the data for condenser only (Supply voltage - 380V).
CONDENSER
Ethylene Glycol 40%
Entering T. 45 °C
Delta T. 5 K
Leaving T. 50 °C

(2) Varying the data for Evaporator and condenser only (Supply voltage - 380V).

EVAPORATOR
Fluid Water
Leaving T. 15 °C
Delta T. 5 K
Entering T. 10 °C
CONDENSER
Ethylene Glycol 40%
Entering T. 45 °C
Delta T. 5 K
Leaving T. 50 °C

Thank you for cooperation.
S.Koprivica, Chief El.Eng.
"Synthesis Engineering PPI"
E-mail: [email protected]

Answer 1

There is an application called HAP. HAP allows you to enter those details into the chiller selection program and obtain the results as well as any other detailed information. The above mentioned software only offers information, but HAP is able to calculate the inputted data. You can obtain it from the left link under Software > HVAC menu.