Vertiv Liebert PDX - Refrigerant and Oil Charge Data

Enclosure B - Technical data table
B - 4Liebert
®
PDX, EconoPhase Version - UM - 265133 - 29.08.2019
Tab. 7 - R410A refrigerant and oil charge
MODEL
BASE REFRIGERANT
CHARGE (2)
[kg - each circuit]
Microchannel Coil
Condenser
BASE OIL CHARGE (1)
[Liter, oil within compressor,
each circuit]
Max System Refrigerant
Charge before oil addition
(3)
[kg – each circuit]
Oil to be added over the
Max System Refrigerant
Charge (3)
[Litre – each circuit]
initial oil
charge
Max topping up
PX082 25.4 2x1.8 2x1.7 13 a
PX094 25.4 2x1.8 2x1.7 13 a
PX104 26.9 2x1.8 2x1.7 13 a
PX120 26.9 2x3.25 2x3.14 13 a
PX150 27.7 2x3,8 2x3,14 13 a
PX165 30.7 2x3,5 2x3,14 13 a
Tab. 7a - Refrigerant pipe charge
a = (0.025 x (total refrigerant charge for each circuit [kg] - max system refrigerant charge before oil addition [kg])) + 0.09
EXTERNAL PIPE DIAMETER
(mm)
Gas
[kg/m]
liquid at di󰀨erent condensing temperatures (3)
R410A [kg/m]
35.0° C 46.0° C 57.0° C
14 x 1 0,0108 0,1142 0,1056 0,0958
16 x 1 0,0147 0,1554 0,1438 0,1304
18 x 1 0,0192 0,2030 0,1878 0,1703
22 x 1.5 0,0271 0,2862 0,2648 0,2402
28 x 1.5 0,0469 0,4956 0,4585 0,4158
35 x 1.5 0,076 0,812 0,7512 0,6812
(1) The recommended oil for units with R410A refrigerant is EMKARATE RL 32- 3MA.
(2) Total basic reference charge useful for unit coupled with the remote condenser suggested for ambient temperature up to 35°C, the
relevant liquid receiver (12.5 l) and the pumped refrigerant Econophase. With Smart Aisle application increase refrigerant charge up
to 10%. The correct charge must be precisely dened in eld, starting with about 80% of the basic reference charge and following the
instruction given in para. 4.2.
(3) Topping up is requested for short pipeline too, due to the extra-charge of refrigerant.
NOTICE: Check oil level inside compressor, where compressor’s oil level sight glass is available, after 30 min. of compressor
running at maximum capacity: oil level must be between 1/2 and 3/4 of sight glass. In tandem compressors the oil level
must be checked with both compressors running at maximum capacity (note: when only one compressor is running, the oil
level inside the compressor that is not currently running could be at the minimum and the compressor, that is running, at the
maximum capacity; when one compressor is running at maximum capacity and one compressor is running in modulating
capacity, the oil level in the latter one could be between 1/2 and the minimum).
Note: The air conditioner is supplied pressurized with helium at 2 bar.
Tab. 7b - Condenser ambient selection per circuit, 35
0
C room temperature.
Indoor model
Outdoor Design Ambient Max Temperature
35° C 40° C 46° C
PX082 MCL055 MCL055 MCM080
PX094 MCL055 MCM080 MCM080
PX104 MCM080 MCM080 MCL110
PX120 MCM080 MCL110 MCL110
PX150 MCL110 MCL165 MCL165
PX165 MCL165 MCL165 MCL165
Tab. 7c - Condenser refrigerant charge with 12.5 l liquid
receiver - as reference
Model
Charge
kg
MCL055 12..9
MCM080 14.4
MCL110 17.8
MCL165 22.6
Tab. 7d - Liebert EconoPhase module charge - as reference
Model Charge per circuit, kg
PR 125 2.5