Vertiv Liebert HPM - Installation; Refrigeration Connections; Refrigeration Pipeline Connections (A and D)

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English
Liebert HPM --- A/W/F/D/H
The units are available in the four configurations shown below.
U/UNDER
Downflow
O, K / OVER
Upflow with front air return
D / DISPLACEMENT
Frontal air discharge at floor level
G/GRILL
L / CONSTANT
F rontal upflow with front air return
S0F model
3 --- Installation
ATTENTION:
The conditioner must never be installed out of
doors. See drawings in Enclosures C.
Note for Conditioner version Over with elec-
trical heaters. If the unit is ducted with air duc-
ts not supplied by us, pay attention to the
positioning of the insulation material.
To avoid overheating of the insulation or sound-
proof material inside the air duct, the insulation
material must be positioned at minimum 30cm
above the top of the unit.
4 --- Refrigeration connections
4.1 -- Refrigeration pipeline connections
(A and D)
The air condensing units are delivered helium ---pressur-
ized at 1 bar.
The discharge operation of the room unit
pressurized with helium (at 1 bar) and the
de ---welding of the b ottoms from the
connections must be carried out as last
operations, immediately followed by the
connection and emptying of the whole
system.