Airedale EasiCool 6kW 64kW - Manual (Page 43)

EasiCool™ Precision Air Conditioning
43 EasiCool Technical Manual 7535776 V1.1.0_04_2013
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Installation
Liquid Line
If the system is configured with the EasiCool higher than the condenser unit it may be required to increase the degree
of sub cooling to prevent flashing gas occurring in the liquid line. This flashing is due to excess pressure drop caused by
the static head of liquid refrigerant and can results in poor operation of the evaporator and expansion device.
Careful pipe sizing is recommended to ensure that the liquid line does not have excessive pressure drop
Increasing the liquid line tube size can minimise pipe pressure drop.
However as a fail safe it is recommended that the condenser is installed above the indoor unit to allow for correct liquid
drain.
Pipe Insulation
The liquid line of the system must be insulated if passing through extremely warm places (boiler houses etc). Ensuring
that the refrigerant does not become flash gas.
Refrigerant Charging Guide
The following information can be used to estimate the refrigerant quantity required in a typical split system installation.
Unit Refrigerant Charge
(kg / Circuit)
The following information can be used to estimate the refrigerant quantity required in a typical split system installation.
The table shows the refrigerant charge / circuit for the indoor and outdoor units.
Indoor Unit Standard Condenser Larger Condenser
(IR) kg/Circuit
HGRH
(OR) kg/Circuit (OR) kg/Circuit kg/Circuit
DF8X-EZRE 1 1.1 CR16 2.7 CR22 2.2
DF10X-EZRE 1 1.1 CR16 2.7 CR22 2.2
DF13X-EZRE 1.5 1.7 CR22 2.2 CR30 4.3
DF15X-EZRE 1.5 1.7 CR22 2.2 CR30 4.3
DF17X-EZRE 1.5 1.7 CR30 4.3 CR50 4.9
DF20X2-EZRE 2.2 2.4 CR30 4.3 CR50 4.9
DF22X2-EZRE 2.2 2.4 CR50 4.9 CR65 9.8
DF26X2-EZRE 2.2 2.4 CR50 4.9 CR65 9.8
DF28X-EZRE 2.7 3 CR50 4.9 CR65 9.8
DF31X-EZRE 2.7 3 CR50 4.9 CR65 9.8
DF35X-EZRE 3.3 3.7 CR50 4.9 CR65 9.8
DF40X-EZRE 3.5 3.9 CR65 9.8 CR80 8.4
DF45X-EZRE 4.2 4.6 CR80 8.4 CR105 16.7
DF50X2-EZRE 4.5 5 CR80 8.4 CR105 16.7
DF55X2-EZRE 5.3 5.8 CR80 8.4 CR105 16.7
DF60X2-EZRE 5.4 5.9 CR80 8.4 CR105 16.7