Liebert HPS User Manual

pag. 8
8 --- A p p e n d i x
8.1 --- Check the unit after the installation
The following list includes the checks to carry out to verify that HPS is intact after the installation.
IMPORTANT:
EVERY UNIT IS TESTED IN OUR PLANTS BEFORE DELIVERY.
A) STA TIC CHECK
A.1) Evaporating unit HPSE
A.1.a) Sight check that the panels and rivets are in-
tact and well fixed.
A.1.b) Checkforthepresenceofacondensatedrain
for each machine and of the discharge pipe
supplied separately.
A.1.c) Check that the (optional) Freecooling air in-
take ducts (rigid or flexible) and the rainproof
external grille, with metallic prefilter (optional)
are available and fixed.
A.1.d) Check that the unit is fixed firmly to the ceiling
or to the wall, and that any fastening devices
passing along the walls of the room to be
conditioned are sealed.
A.1.e) Put the electrical board of the room in the
”OFF” position.
A.1.f) Check for the correct connection of the sup-
ply cables and of the Bus cable between the
PowerFacecardandtheremotedisplayor
between the PowerFace and Hiromatic (if in-
stalled, optional).
A.1.g) Check the fastening of cables, electronic
components and fuses.
A.1.h) Check the correc t position of the air filter.
A.2) Mo to r---condensing unit HPSC
A.2.a) Remove the panels of the compressor com-
partment to access the refrigerating circuit (if
the weather conditions allow this; prevent
water from entering the electric board and the
compressor compartment).
A.2.b) Check that the refrigerating circuit is intact
and that there are no oil stains in the com-
pressor compartment and along the ducts.
A.2.c) Check the evaporating fan by turning it by
means of a screwdriver: it must be free to ro-
tate without any abnormal noise.
A.2.d) Check that the electrical board is free from
foreign bodies, the correct connection to the
evaporating unit and that all electrical con-
nections are tightened.
The unit is ready for the dynamic check.
B) DYNAMIC CHECK
B.1) Check the ground connection.
B.2) Put the electrical board of the room in the
”ON” position.
B.3) Set the main switch of the indoor unit ”ON”.
B.4) Check the voltage at the main supply cables.
B.5) Check the voltage at the emergency supply
cables.
B.6) Only for the units equipped with Hiromatic re-
mote interface, set the wished system con-
figuration, such as set point, network (only for
”Advanced” versions, by assigning an
identification number for each unit), para-
meter sharing, stand---by, freecooling differ-
entials (if installed), and so on.
B.7) Measure the current absorbed by theevapor-
ating fan only.
B.8) Start up the compressor (if necessary force
the system via the control) and wait until the
system is stable. Measure the absorbed cur-
rent,withbothfanandcompressoroperat-
ing.
B.9) Check all these values comparing them with
those shown in the machine plate.
B.10) Check the delivery temperature with a digital
thermometer.
B.11) Verify the superheating, according to par.
7.2.3.
B.12) Close the panels of the evaporating and mo-
tor---condensing units.

Liebert HPS Specifications

General

Brand	Liebert
Model	HPS
Category	Air Conditioner
Language	English