Mechanical Specifications
3--2
Liebert HPS---PD--- 272965---20.11.2009
Cabinet
Liebert HPS frame co nsists of riveted steel panels, tre ated with powder coating colour as stand-
ard (RAL7035). The evaporating unit can be placed ceiling mounted (HPSE) or wall mounted
(SE_W). In the HPSE, air inlet is located in the 3 side panels and the air supply is done from the
bottom section, through an integrated grille.
In the SE_W, air inlet is l ocated at unit frontal bottom side and air supply is from unit top.
The motor---condensing unit (HPSC) is designed to be installed outdoor and resist to worst
weather conditions.
The thermo --- acoustic insulation of the panels is 10 mm thick, mineral wool type, density 70 kg/-
m
3
.
The motor---condensing unit takes the external air from the rear and discharge it on the front sec-
tion. A frontal metal safety grid prevents contact with the fan.
The insulation of the panels is made by a self---extinguishing material, specified as clas s V1 in re-
lation to its fire proof properties.
Electrical panel
The electrical panel of the indoor unit is housed in easily accessible panel: it includes the circuit
breaker for the AC power line, the circuit breaker for the optional DC power line and the electronic
board. An external main switch is available on the unit s ide as standard.
Thanks to the fast plug connectors (special on request), no internal wiring is needed: AC power
line, DC power line, power supply for the condenser, general warning and alarm, display c onnec-
tion, optional LAN connection are available on the side of the evaporating unit. The electrical
board is built in accordance with EN 60204---1 recommendations.
A single phase transformer supplies with 2 4 VAC the electronic control and the secondary circuit
with maximum safety; in Liebert HPS with optional 48 VDC emergency freecooling system, the
control is directly fed by the 48 VDC supply so urce.
Automatic restart is provided after a power failure.
The outdoor HPSC condenser unit receives main power supply from the indoor unit, together with
the control signals collected in a dedicated weather ---proof terminal block.
Operational limits
HPS
HPS 06
06
Advanced
Long piping
08
08 to 14
Advanced
Long piping
Power supply voltage 230V ac ±10% / 1Ph / 50Hz 400V ac ±10% / 3Ph / 50Hz
Outdoor
working conditions
from
10 ˚C
(mechanical mode)
--- 3 0 ˚C
10 ˚C
(mechanical mode)
--- 3 0 ˚C
--- 3 0 ˚C
(freecooling mode)
--- 3 0 ˚C
(freecooling mode)
to 47 ˚C 51 ˚C 45 ˚C 50 ˚C
Indoor
working conditions
(*)
from 24 ˚C, 30% R.H. and 24 ˚C, 80% R.H.
to 35 ˚C, 40% R.H.
34 ˚C,
40% R.H.
30 ˚C, 40% R.H.
Storage conditions
--- 4 0 ˚C, 5% R.H.
55 ˚C, 90% R.H.
(*) Conditions referred to indoor unit (HPSE) air intake section.
S
No internal wiring
with thefast plug
connectors
accessories
S
Evaporatingside:
ceiling mounted
S
Condensing side:
worst weather
conditionsresistance
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