Start-Up Procedure - Hitecsa EQPL-B 4360 Manual Del Operador

II.9

START-UP PROCEDURE

IMPORTANT!
Machine commissioning or the first start up (where
provided for) must be carried out by skilled
personnel from workshops authorised by
HITECSA, qualified to work on this type of
products.
IMPORTANT!
The use and maintenance manuals for the pumps,
fans and safety valves are attached to this manual
and should be read throughout.
DANGER!
Before starting up, make sure that the installation
and electrical connections conform with the
instructions in the wiring diagram. Also make sure
that there are no unauthorised persons in the
vicinity of the machine during the above operations.
DANGER!
The units are equipped with safety valves located
inside the technical compartment and coil
compartment. When they trip, they cause a loud
noise and violent refrigerant and oil leaks. Do not
approach the safety valve tripping pressure value.
The safety valves can be channelled in accordance
with that stipulated by the valve manufacturers.
IMPORTANT!
A few hours before starting up the unit (at least 12),
supply power to the machine in order to power the
electrical resistances designed to heat up the
compressor crankcase. Each time the unit starts up
the crankcase resistances switch off automatically.
II.9.1 General Unit Conditions
Have the technical clearance distances indicated in the manual been
Are the coils free from obstructions
Are the fan grilles free from obstructions
Is the unit damaged due to transport/installation?
The general conditions of the unit are compliant!
II.9.1.1 Checking compressor oil level
Was pre-heating activated at least 12 hours before start-
The compressor is ready for start-up!
START
t
respected?
t YES
t YES
t YES
t NO
START
t
Is the oil level sufficient?
t YES
up?
t YES
SECTION II :: INSTALLATION AND MAINTENANCE
Instructions for start-up
Configuration parameters
Summer working temperature set point
Winter working temperature set point
Antifreeze temperature set point
Antifreeze temperature differential
Low pressure exclusion time upon start-up/ in
function
Press. exclusion time water differential on start-
up/in operation
Delay time for pump shutdown
Anticipation time pump ignition
Minimum time between 2 consecutive
compressor start-ups of these
Before starting the unit, perform the following checks.
○ The electrical supply must comply with the specifications on the data
plate and/or the wiring diagram and it must fall within the following
limits:
 variation of the power supply frequency. ±2 Hz;
 variation of the power supply voltage: ±10% of the nominal voltage;
 imbalance between the supply phases: <2%.
○ The electrical supply system must be able to supply adequate
current and be suitably sized to handle the load;
○ Open the electric panel and make sure the terminals of the power
supply and of the contactors are tight (they may have come loose
during transport, which could lead to malfunctions);
IMPORTANT!
Electrical connections must be made in compliance
with the local installation standards in force in the
place where the unit is installed, and with the
instructions in the wiring diagram provided with the
unit.
When all the connections have been performed, the unit may be
commissioned after the following points have been checked.
€ €
NO Restore the indicated technical spaces
€ €
NO Clean the coils.
€ €
NO Remove the obstructions
DANGER! Do not start the unit!
€ €
YES
Restore the unit!
€ €
NO Top up as necessary
€ €
NO Activate pre-heating and wait 12 hours
79
Setting
standard
7°C
45°C
3°C
2°C
60"/10"
15"/3"
30"
60"
360"