Installation/Use/Maintenance Instructions
Fan coil units VFC, installation in sills
E
LTG Incorporated · PO Box 2889 · Spartanburg, S.C. 29304, USA
VFC_USA_BA (07/19)
Phone 864 599-6340, Fax -6344 · e-mail: [email protected] · Internet: www.LTG-INC.net
Former editions are invalid · Subject to technical modifications
page 41 of 19
5.4
Check after Installation
Verify for the unit's proper connection to
a residual current device (RCD).
Mechanical Check
Having completed the installation the unit is to be checked
for any mechanical damages. Remainders of the packag
ing material and dust in or on the unit must be removed.
Check the following:
- leakproofness of the water connections (including heat
exchanger connections),
- the insulation of all cold water carrying components to
the heat exchanger for damage,
- the condensate drainage (optional) for clear passage
and sufficient slope,
- the fixing screws for proper fit,
- the suspension for rigidity and sufficient load-bearing
capacity (ceiling units),
- the unit for not contacting the facade and the raw floor
except via the seals provided and the supporting feet
(floor units),
- the line voltage and frequency to match the data given on
the type plate,
- the electrical connections for proper execution and con
formity by codes, rules and regulations,
- proper functioning of the controls (optional),
- proper functioning of the motors (fan, actuators) without
friction noises,
- the unit's mounting,
- the diffusion area/diffusion grille of the unit to be free of
any obstructions,
- proper horizontal alignment, accurate to dimension,
- sufficient water hose lengths and strainless installation.
Check for media supply
- Check for proper availability of primary air, cold water,
warm water, and electrical power or compressed air for
the controls.
- Check whether voltage and line frequency comply with
the data given on the actuator's type plate. Never operate
control devices with inappropriate voltage or frequency
since this might result in destruction of the units and put
people at risk.
Control technical equipment
Supply of control devices by LTG Aktiengesellschaft is op
tional, however it is the rule for actuators for units with
dampers. Control valves are often factory-mounted.
Check for proper functioning
Turn the temperature control's selection knob slowly from
one end position to the other while keeping an eye on the
control dampers and linkage or the valves. Dampers and
valves must move correspondingly quite smoothly and
without rattling noises from one end position to the other.
No exceptional noise must be produced by the electric ac
tuators. In case the units show damages have them prop
erly repaired by an expert. Damper linkages have been
gauge adjusted in the factory and, therefore, require LTG
Aktiengesellschaft's skilled personnel for readjustment.
Starting Standard Operation
Then set the temperature controller to the desired tem
perature. After a certain time the indoor air temperature
should meet the setpoint.
6.
First Use
Prior to first use all installation work and all checks must
have been completed.
Check for proper water and power supply.
Please take special care to ensure that the starting voltage
for the fan is adequate.
Having started the unit air flow should be perceivable
from the outlet grille. Only very minor air diffusion and
motor sounds should be audible. Other sounds such as
friction or impact might indicate damages resulting from
transport or installation.
