Lampoassa ELI 60-90, User Manual

Page: 24 / 62

24
100% GEOTHERMAL HEAT
INSTALLATION
Electrician’s checklist
Check that
• all phases going to the switchboard are in the correct phase
sequence
• the master fuse is of sufficient size
• the ground source heat pump’s fuse size is correct, type: slow (C
curve)
• if necessary, current monitor has been installed to the building’s
master electrical switchboard (part-power models)
• the main cable is of sufficient size
4.4. Commissioning
Before commissioning, check that:
• the heating system has been connected, filled and de-aerated
appropriately
• the ground circuit has been installed, filled and de-aerated
appropriately
• electrical connections have been made appropriately and the
outdoor sensor (and optional room sensor) has been installed
• after preventing the compressor from starting, water in the stor-
age tank has been heated by the electric heating element for at
least 6 hours
If the ground source heat pump is started for the first time without
pre-heating, compressor will be damaged. Fill the storage tank with
water and prevent the compressor from starting by pressing down the
red compressor motor circuit breaker. Switch on the ground source heat
pump’s power supply, the electric heating element begins to heat the
water contained in storage tank. A regulator alarm goes on and the text
“Compressor 1 circuit 1 some motor protection gone off. Check motor
protection F1, F2 or F3” appears on the display. Later another regulator
alarm goes on and the text “Resistor functioned in full power system”
appears. These alarms do not require taking any measures. Starting of
the compressor is allowed after six hours of pre-heating.
NOTE!
A compressor started without pre-heating
is not covered by warranty!
Possible problems during startup
Problem Cause Solution
Fuses always blow
when the compres-
sor is started.
You are using the wrong
type of fuse.
Check that the fuse is auto-
matic: C or D / ceramic fuse:
SLOW or with a snail icon.
Temporary connections
at the site are causing an
overload of the fuses
Reduce load.
The heat collection
circuit pump does
not start.
The regulator may not be
getting any power.
Check the regulator fuse.
The regulator is not au-
thorised to start the pump.
Check the measured/set
values.
The shut-off valves are in
the fill position.
Check that the de-aeration
and fill valves are in the
closed position and that the
intermediate valve is open.
The plug-ins of heat
collection pump are
unconnected from the
swithboard.
Connect the plug-ins.
Control system is on
manual control.
Remove manual control from
the maintenance menu or
switch off the ground source
heat pump’s power supply for
a moment.
The compres-
sor runs for a
little while and the
evaporator pressure
switch goes off.
There may still be air in
the heat collection circuit.
De-aerate the heat collection
circuit.
There may be a leak in the
refrigerant circuit.
Contact the equipment
installer or dealer.
There may be dirt in the
mud separator.
Check the mud separator
and clean as required.
The level of fluid in the
heat collection circuit. may
be too low.
Check the level of the fill
container and fill as required
(de-aeration of groun circuit
may be necessary as well).
Some valve in the heat
collection circuit may be
closed.
Check all valves and open
if closed.
The compres-
sor runs for a
little while and the
condenser pressure
switch goes off.
There may be air in the
condenser circuit or charge
pump.
De-aerate charge circuit net-
ween the device and storage
tank. Open the charge pump
and chech that the pump is
operating.
The fluid level in
the heat collection
circuit fill container
drops suddenly
after startup.
There is a leak in the
system (the smell of ethyl
alcohol or glycol is strong),
there is a leak in the heat
collection circuit or there
is still air in the circuit.
Check the condition of
valves in the de-aeration
group, air valve and the
shaft seal on the ground
circuit pump, check the
condition of heat collection
circuit extension joints, or
de-aerate.
Motor protection
switches go off
when starting.
The compressor or the
ground circuit pump is
short-circuited or one
of the phases is not
activated.
Check electrical connec-
tions.
The fuses in the master
switchboard of the build-
ing have blown or are
faulty.
Check and replace fuses as
required.
The maintenance menu section Manual control allows manual control of
compressors, pumps and valves. This facilitates troubleshooting process
and may be of help in case of starting problems.