enervent LTR-5 Z eAir, Operating And Maintenance Instructions Manual

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102
Alarm Reason Instruction Solution
TE-30 temperature sensor
faulty Check from the measurements menu on the
control panel if the exhaust temperature
measurement is off the charts.
Contact the maintenance.
Electric
radiator
overheated
(SLP fault) Electrical post-heating faulty Contact the maintenance.
Supply blower stopped Open the machine access door while the
machine is operating. The supply blower
should be rotating. In LTR model machines,
press the door switch with a screwdriver and
check, if the blower starts. Contact the maintenance.
Supply filter blocked Open the access door when the machine is
off. Pull out the filter and check the dirtiness
of the filter. Change the supply filter.
Contact the maintenance.
Outdoor louvre blocked Check if the louvre on the outside of the house
is blocked. Clean the outdoor louvre.
Contact the maintenance.
The heating controller card
is broken Change the heating controller card.
Contact the maintenance.
Water radiator
freezing risk
(TE-45 min) Heat exchanger trace has
broken A green trace circles the heat exchanger.
Check if the trace can be seen from the LTO
cell review hole. If it cannot be seen, the trace
has broken. Change the trace
The heat exchanger trace is
lubricated so that it can slide A green trace circles the heat exchanger.
Check from the LTO trace review hole if the
pulley is rotating even though the LTO cell is
not rotating. Change the trace
Exhaust blower has stopped Open the machine access door while the
machine is operating. The exhaust blower
should be rotating. In LTR model machines,
press the door switch with a screwdriver and
check, if the blower starts. Change blowers
Exhaust air filter is blocked Open the access door when the machine is
off. Pull out the filter and check the dirtiness
of the filter. Change the exhaust filter
Exhaust air valves adjusted
wrong Contact the company that installed the
ventilation unit and find out if the air flow and
valves are correctly adjusted.
Contact the maintenance.
Ducts have inadequate
insulation Check the thickness of insulation in supply
and exhaust ducts, and add insulation if
necessary.
Contact the maintenance.
The protection against
additional heating
overheating has launched. Find out the cause for the failure and reset the
protection against overheating (® button in
the radiator).
Contact the maintenance.
Water heating radiator has a
faulty control valve actuator Contact the maintenance.
The circulator has shut down Check if the heating/cooling circulator is
rotating.
Start the pump. If the issue persists, contact
maintenance.
Contact the maintenance.
The LTO controller card is
faulty (EDA models) The LTO cell is controlled by a separate
controller card that is located in the electric
box of the machine. Contact the maintenance.
LTO pulley has separated
from the shaft Check from LTO trace review hole if the shaft is
rotating empty and the pulley is in its place. Tighten the screw on the pulley.
Contact the maintenance.